Horizontal machining positioning tool for round copper pipe

Abstract

The utility model provides a horizontal processing positioning frock of round copper pipe relates to copper pipe processing technical field, including frock board, support plate, concave support pad, fixed block, locking piece and positioning hoop, support plate is fixed in frock board top, concave support pad is located on the support plate and is used for supporting round copper pipe, fixed block and locking piece are arranged respectively at concave support pad both sides, one end of positioning hoop is connected with fixed block, and the other end is connected with locking piece after passing round copper pipe. The utility model discloses the cooperation of concave support pad and positioning hoop forms the enveloping type constraint, realizes the even stress of multipoint, effectively inhibits the processing vibration and deformation, adopts adjustable locking mechanism, can adapt to the processing demand of different specifications round copper pipe, has positioning reliable, easy operation, and the advantages such as strong versatility, has improved the processing precision and efficiency of big round copper pipe inner chamber and port position obviously.

Description

Technical Field

[0001] This utility model mainly relates to the field of copper tube processing technology, specifically to a horizontal processing positioning fixture for round copper tubes. Background Technology

[0002] As a core component of continuous casting crystallizers, the machining precision and quality of round copper tubes directly affect the forming effect of continuously cast billets and the service life of the equipment. Especially in the field of high-end large round billet continuous casting, the increasing demand for large cast billets from industries such as new energy, automobiles, and aerospace has placed higher demands on the manufacturing process of large round copper tubes with a diameter of Φ400mm and above. Currently, during the machining process of large round copper tubes, unstable clamping and uneven stress often lead to stress concentration due to deformation, affecting the machining precision of the inner cavity and end parts, and consequently impacting the overall equipment performance.

[0003] Traditional machining fixtures often employ vertical structures or simple support methods, resulting in problems such as unstable positioning, poor adaptability, and cumbersome adjustments, making it difficult to meet the high-precision machining requirements of large round copper tubes of different specifications. Furthermore, existing fixtures are complex in structure and have low clamping efficiency, leading to long production cycles and high costs. Therefore, there is an urgent need to develop a horizontal machining positioning fixture with a reasonable structure, stable clamping, and strong adaptability to improve the machining quality and efficiency of large round copper tubes, shorten the manufacturing cycle, and reduce production costs. Utility Model Content

[0004] 1. The technical problem to be solved by the utility model: This utility model provides a horizontal machining and positioning fixture for round copper tubes to solve the technical problems existing in the background art.

[0005] 2. Technical Solution: To achieve the above objectives, the technical solution provided by this utility model is: a horizontal machining and positioning fixture for round copper tubes, including a fixture plate as the mounting base for the entire fixture; A support plate is fixedly mounted on the top of the tooling plate; A concave support pad is fixedly installed on the top of the support plate, and its concave surface is used to support the round copper tube; A fixing block is disposed on one side of the concave support pad; A locking element is provided on the opposite side of the concave support pad, opposite to the fixing block; And a positioning hoop, one end of which is detachably connected to the fixing block, and the other end of which is detachably connected to the locking member after passing around the round copper tube; The locking component can apply and maintain a locking force on the positioning hoop, so that the positioning hoop presses and fixes the round copper tube onto the concave support pad.

[0006] During operation, the tooling plate can be securely connected to the ground or machine tool table with bolts to ensure overall stability. The support plate is vertically mounted to the tooling plate with bolts to provide support height. The concave support pad is bolted to the top of the support plate. Its concave arc surface is precision machined to fit well with the outer circumference of the round copper tube, thereby effectively distributing pressure while supporting the workpiece and preventing deformation of the round copper tube due to localized stress.

[0007] The fixing block is fixedly installed on one side of the concave support pad, and may be provided with a connecting hole or hook. The locking element is installed on the other side of the concave support pad, and can be a self-locking device such as a ratchet lock or a threaded tightening mechanism. The positioning clamp can be a metal chain, a high-strength flexible strap, or a steel strip.

[0008] When positioning a round copper tube, the operator first hoists the tube onto a concave support pad, ensuring its stable placement within the concave surface. Then, one end of the positioning clamp is connected to the fixing block. Next, the positioning clamp is moved around the upper half of the round copper tube, and its free end is inserted into or connected to the locking device. Finally, the locking device is operated to tighten the positioning clamp until the round copper tube is evenly and reliably held in place on the concave support pad, allowing subsequent processing operations to begin. This device supports the bottom of the round copper tube through the concave support pad and utilizes the positioning clamp and locking device to apply radial clamping force from above, achieving multi-point, uniform constraint on the workpiece. This enveloping positioning method effectively resists cutting forces and vibrations during processing, preventing workpiece displacement or chatter, thus ensuring high-precision machining of internal cavities and ports, and significantly reducing workpiece clamping deformation stress.

[0009] Furthermore, the support plate is provided with symmetrical support columns on both sides of the top, and the sides of the support columns are supported against the workpiece to be processed by a screw tensioning mechanism.

[0010] Furthermore, the lead screw tensioning mechanism includes an adjusting bolt, two horizontal locking lead screws, and two damping positioning blocks; the adjusting bolt has a threaded section inside, and one end of each of the two horizontal locking lead screws is engaged with the threaded section; the two damping positioning blocks are respectively connected to the other end of the two horizontal locking lead screws and are used to abut against the outer surface of the round copper tube and a fixed support column, respectively.

[0011] Furthermore, the support plate has multiple sets of first locking holes arranged along its length; the bottom of the support column is connected to the first locking holes by fasteners.

[0012] Furthermore, the support plate has a plurality of second locking holes arranged along its length; the bottom of the locking member and the fixing block are respectively connected to the corresponding one in the selected second locking hole by fasteners.

[0013] Furthermore, the positioning hoop adopts a chain structure.

[0014] Furthermore, the top of the fixing block is symmetrically provided with a first groove, and a snap-fit ​​block is detachably connected to the top of the fixing block. The bottom of the snap-fit ​​block is correspondingly provided with a second groove. When the snap-fit ​​block is engaged with the fixing block, the first groove and the second groove together form a channel for accommodating and clamping the chain. The middle of the fixing block and the snap-fit ​​block are correspondingly provided with positioning holes, and a fastener passes through the positioning hole in sequence and is connected to the support plate.

[0015] Furthermore, the locking component includes a concave connecting block, a connecting block, a locking threaded rod, a sliding locking block, and a locking nut; the bottom of the concave connecting block is connected to the support plate via a fastener; the connecting block is rotatably connected to the top of the concave connecting block via a rotating shaft; the locking threaded rod is vertically connected to the top of the connecting block; the sliding locking block has a smooth through hole in the middle and forms a sliding fit with the locking threaded rod; the sliding locking block is provided with a connection structure for connecting to the end of the chain; the locking nut is threadedly engaged with the locking threaded rod and is located above the sliding locking block.

[0016] 3. Beneficial effects: Compared with the prior art, the technical solution provided by this utility model has the following advantages: This utility model features a reasonable design. A concave support pad supports the round copper tube, and an adjustable positioning clamp and locking device form an enveloping constraint, achieving uniform force distribution at multiple points. This effectively suppresses processing vibration and deformation, ensuring high-precision machining of the inner cavity and ports. Its support column, locking device, and fixing block are all adjustable in position, allowing for simple hole adjustments to accommodate round copper tubes of different diameters and lengths, significantly improving the tooling's versatility and applicability.

[0017] The overall structure is compact and reasonable, and the clamping operation is simple and efficient, significantly shortening the workpiece preparation time while reducing the investment and maintenance costs of special tooling. While ensuring rigidity and stability, this design also considers the needs of flexible production, making it suitable for horizontal machining of large round copper tubes of various specifications.

[0018] It should be noted that the structures not described in this utility model are the same as or can be implemented using existing technology, and will not be elaborated here, as they do not involve the design points and improvement directions of this utility model. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This utility model Figure 1 A schematic diagram of the structure at point A; Figure 3This is a schematic diagram of the structure of this utility model from another angle; Figure 4 This is a schematic diagram of the lead screw tensioning mechanism of this utility model; Figure 5 This is a front structural diagram of the present invention; Figure 6 This is a schematic diagram of the structure of the fixing block of this utility model; Figure label: 1. Tooling plate; 2. Support plate; 21. Support column; 22. Screw tensioning mechanism; 23. Adjusting bolt; 24. Horizontal locking screw; 25. Damping positioning block; 26. First locking hole; 27. Second locking hole; 3. Concave support pad; 4. Fixing block; 41. First groove; 42. Snap-fit ​​block; 43. Second groove; 44. Positioning hole; 5. Locking component; 51. Concave connecting block; 52. Connecting block; 53. Locking threaded rod; 54. Sliding locking block; 55. Locking nut; 6. Positioning clamp. Detailed Implementation

[0020] To facilitate understanding of this utility model, a more comprehensive description of the utility model will be given below with reference to the accompanying drawings, which show several embodiments of the utility model. However, the utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of the utility model will be more thorough and complete.

[0021] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "page", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0022] Furthermore, 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 technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0023] In this utility model, unless otherwise explicitly specified and limited, the terms "installed," "connected," "linked," "fixed," "provided with," and "located in" 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. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0024] It should be noted that the structures not described in this utility model do not involve the design points and improvement directions of this utility model, and can all adopt existing technologies known to those skilled in the art.

[0025] The specific implementation of this utility model will be described in detail below with reference to specific embodiments.

[0026] See attached document Figure 1-6 A horizontal machining and positioning fixture for round copper tubes includes a fixture plate 1, which serves as the mounting base for the entire fixture. Support plate 2 is fixedly installed on the top of tooling plate 1; A concave support pad 3 is fixedly installed on the top of the support plate 2, and its concave surface is used to support the round copper tube; The fixing block 4 is disposed on one side of the concave support pad 3; Locking element 5 is disposed on the opposite side of the concave support pad 3, opposite to the fixing block 4; And positioning hoop 6, one end of which is detachably connected to the fixing block 4, and the other end of which is detachably connected to the locking member 5 after passing around the round copper tube; The locking member 5 can apply and maintain a locking force on the positioning hoop 6, so that the positioning hoop 6 presses and fixes the round copper tube onto the concave support pad 3.

[0027] In this embodiment, the tooling plate 1 can be firmly connected to the ground or machine tool table with bolts to ensure overall stability. The support plate 2 is vertically installed on the tooling plate 1 with bolts to provide support height. The concave support pad 3 is installed on the top of the support plate 2 with bolts. Its concave arc surface is precision machined to fit well with the outer circumference of the round copper tube, thereby effectively dispersing pressure while supporting the workpiece and preventing the round copper tube from deforming due to local stress.

[0028] The fixing block 4 is fixedly installed on one side of the concave support pad 3. The fixing block 4 may be provided with a connecting hole or a hook. The locking element 5 is installed on the other side of the concave support pad 3, and can be a self-locking device such as a ratchet lock or a threaded tightening mechanism. The positioning clamp 6 can be a metal chain, a high-strength flexible strap, or a steel strip.

[0029] When positioning the round copper tube, the operator first hoists the tube onto the concave support pad 3, ensuring its stable placement within the concave surface. Then, one end of the positioning clamp 6 is connected to the fixing block 4. Next, the positioning clamp 6 is moved around the upper half of the round copper tube, and its free end is inserted into or connected to the locking element 5. Finally, the locking element 5 is operated to tighten the positioning clamp 6 until the round copper tube is evenly and reliably held in place on the concave support pad 3, at which point subsequent processing can begin. This device supports the bottom of the round copper tube through the concave support pad 3 and utilizes the positioning clamp 6 in conjunction with the locking element 5 to apply radial clamping force from above, achieving multi-point, uniform constraint on the workpiece. This enveloping positioning method effectively resists cutting forces and vibrations during processing, preventing workpiece displacement or chatter, thereby ensuring high-precision machining of internal cavities and ports, and significantly reducing workpiece clamping deformation stress.

[0030] The support plate 2 has symmetrical support columns 21 on both sides of its top. The sides of the support columns 21 are supported against the workpiece to be processed by a screw tensioning mechanism 22. In this embodiment, in order to further position the round copper tube, the screw tensioning mechanism 22 is symmetrically arranged to limit the horizontal movement of the round copper tube.

[0031] The lead screw tensioning mechanism 22 includes an adjusting bolt 23, two horizontal locking lead screws 24, and two damping positioning blocks 25. The adjusting bolt 23 has a threaded section inside, and one end of each of the two horizontal locking lead screws 24 engages with the threaded section. The two damping positioning blocks 25 are respectively connected to the other ends of the two horizontal locking lead screws 24 and are used to abut against the outer surface of the round copper tube and a fixed support column 21. In this embodiment, the damping positioning blocks 25 are preferably made of materials softer than metals, such as nylon, copper, or engineering plastics. Their purpose is to avoid damaging the precision surface of the round copper tube during the locking process, while increasing the contact friction and preventing slippage. By rotating the respective horizontal locking lead screws 24, the damping positioning blocks 25 can be pressed against the round copper tube or the support column 21, thereby forming a stable horizontal locking force and firmly constraining the round copper tube to the concave support pad 3. This mechanism has the advantages of good force amplification effect, reliable self-locking performance, and high adjustment accuracy.

[0032] The support plate 2 has multiple sets of first locking holes 26 arranged along its length; the bottom of the support column 21 is connected to the first locking holes 26 by fasteners. In this embodiment, a series of first locking holes 26 arranged in a straight line are machined on the support plate 2. The bottom of the support column 21 is provided with multiple corresponding mounting holes, which can be selectively connected and fixed to the first locking holes 26 at different positions by fasteners such as bolts.

[0033] When processing round copper tubes of different diameters, the operator can loosen the fasteners, move the support column 21 to a suitable position matching the current tube diameter, and then re-tighten it. This position adjustment function ensures that the screw tensioning mechanism 22 can always form an effective locking force system with the support column 21, thereby enabling this tooling to quickly and conveniently adapt to various round copper tubes within a certain size range, significantly improving the tooling's versatility and applicability, and reducing the cost of replacing special tooling for different specifications of workpieces.

[0034] The support plate 2 has multiple second locking holes 27 arranged along its length. The bottoms of the locking member 5 and the fixing block 4 are respectively connected to the corresponding ones of the selected second locking holes 27 by fasteners. In this embodiment, the bottoms of the locking member 5 and the fixing block 4 are provided with installation interfaces, which can be installed on these second locking holes 27 by bolts or other fasteners. By selecting different second locking holes 27 for installation, the relative positions of the locking member 5 and the fixing block 4 on the support plate 2 can be adjusted independently. This design allows the tooling to flexibly adapt to round copper tubes of different lengths, ensuring that the locking point of the positioning clamp 6 is always in the most effective position, thus working in conjunction with the position adjustment function of the support column 21 to achieve accurate and stable positioning of round copper tubes of various specifications.

[0035] The positioning clamp 6 adopts a chain structure. In this embodiment, a metal chain structure is used, which has good flexibility and can tightly fit and wrap around the outer circumference of round copper tubes of different diameters to achieve uniform force distribution. This structure is simple and reliable, has a strong load-bearing capacity, and is easy to hook or connect with the fixing block 4 and locking component 5. It is easy to operate and has a long service life.

[0036] The top of the fixing block 4 is symmetrically provided with a first groove 41, and a snap-fit ​​block 42 is detachably connected to the top of the fixing block 4. The bottom of the snap-fit ​​block 42 is correspondingly provided with a second groove 43. When the snap-fit ​​block 42 is engaged with the fixing block 4, the first groove 41 and the second groove 43 together form a channel for accommodating and clamping the chain. The fixing block 4 and the snap-fit ​​block 42 are respectively provided with positioning holes 44 in the middle. A fastener passes through the positioning holes 44 in sequence and is connected to the support plate 2. In this embodiment, during installation, the chain is first placed in the first groove 41 of the fixing block 4, and then the snap-fit ​​block 42 is placed on top of it, so that the chain is simultaneously embedded in the complete channel formed by the first groove 41 and the second groove 43. Finally, the entire assembly is fastened to the second locking hole 27 of the support plate 2 by bolts passing through the positioning holes 44 of the fixing block 4 and the snap-fit ​​block 42. This design makes the chain firmly constrained in the channel formed by the grooves, effectively preventing the chain from slipping or shifting when under force, and greatly enhancing the reliability and safety of the clamping. Meanwhile, the detachable design of the snap-fit ​​block 42 facilitates the installation and replacement of the chain, making maintenance convenient.

[0037] The locking component 5 includes a concave connecting block 51, a connecting block 52, a locking threaded rod 53, a sliding locking block 54, and a locking nut 55. The bottom of the concave connecting block 51 is connected to the support plate 2 via fasteners. The connecting block 52 is rotatably connected to the top of the concave connecting block 51 via a rotating shaft. The locking threaded rod 53 is vertically connected to the top of the connecting block 52. The sliding locking block 54 has a smooth through hole in the middle and forms a sliding fit with the locking threaded rod 53. The sliding locking block 54 is provided with a connecting structure for connecting to the end of the chain. The locking nut 55 is threadedly engaged with the locking threaded rod 53 and is located above the sliding locking block 54. In this embodiment, the sliding locking block 54 has a connecting pin or hook on its side for connecting the end of the chain. After the chain is initially positioned, the locking nut 55 is tightened, and its lower end face will press against the sliding locking block 54, thereby pulling the chain downward through the sliding locking block 54 to achieve final locking and tensioning. This sliding fit structure allows for smooth adjustment. The locking force can be precisely controlled by adjusting the downward pressure distance of the locking nut 55, ensuring that the round copper tube is firmly fixed while effectively preventing damage to the workpiece due to over-tightening.

[0038] The above-described embodiments are merely illustrative of certain implementations of this utility model, and their descriptions are relatively specific and detailed. However, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A horizontal machining and positioning fixture for round copper tubes, characterized in that: include: Tooling plate (1) serves as the mounting base for the entire tooling; A support plate (2) is fixedly installed on the top of the tooling plate (1); A concave support pad (3) is fixedly installed on the top of the support plate (2), and its concave surface is used to support the round copper tube; A fixing block (4) is disposed on one side of the concave support pad (3); The locking element (5) is disposed on the opposite side of the concave support pad (3) to the fixing block (4); And positioning hoop (6), one end of which is detachably connected to the fixing block (4), and the other end of which is detachably connected to the locking member (5) after passing around the round copper tube; The locking member (5) can apply and maintain a locking force to the positioning hoop (6), so that the positioning hoop (6) presses and fixes the round copper tube onto the concave support pad (3).

2. The horizontal machining and positioning fixture for round copper tubes according to claim 1, characterized in that: The support plate (2) has symmetrical support columns (21) on both sides of the top. The side of the support column (21) is supported against the workpiece to be processed by the screw tensioning mechanism (22).

3. The horizontal machining and positioning fixture for round copper tubes according to claim 2, characterized in that: The lead screw tensioning mechanism (22) includes an adjusting bolt (23), two horizontal locking lead screws (24), and two damping positioning blocks (25). The adjusting bolt (23) has a threaded section inside, and one end of the two horizontal locking lead screws (24) respectively engages with the threaded section. The two damping positioning blocks (25) are respectively connected to the other end of the two horizontal locking lead screws (24) and are used to abut against the outer surface of the round copper tube and a fixed support column (21).

4. The horizontal machining and positioning fixture for round copper tubes according to claim 3, characterized in that: The support plate (2) has multiple sets of first locking holes (26) arranged along its length; the bottom of the support column (21) is connected to the first locking holes (26) by fasteners.

5. The horizontal machining and positioning fixture for round copper tubes according to claim 1, characterized in that: The support plate (2) has a plurality of second locking holes (27) arranged along its length; the bottom of the locking member (5) and the fixing block (4) are respectively connected to the corresponding one in the selected second locking hole (27) by fasteners.

6. The horizontal machining and positioning fixture for round copper tubes according to claim 5, characterized in that: The positioning hoop (6) adopts a chain structure.

7. The horizontal machining and positioning fixture for round copper tubes according to claim 6, characterized in that: The top of the fixing block (4) is symmetrically provided with a first groove (41), and a snap-fit ​​block (42) is detachably connected to the top of the fixing block (4). The bottom of the snap-fit ​​block (42) is correspondingly provided with a second groove (43). When the snap-fit ​​block (42) is engaged with the fixing block (4), the first groove (41) and the second groove (43) together form a channel for accommodating and clamping the chain. The middle of the fixing block (4) and the snap-fit ​​block (42) are correspondingly provided with positioning holes (44), and a fastener passes through the positioning hole (44) in sequence and is connected to the support plate (2).

8. The horizontal machining and positioning fixture for round copper tubes according to claim 7, characterized in that: The locking component (5) includes a concave connecting block (51), a connecting block (52), a locking threaded rod (53), a sliding locking block (54), and a locking nut (55); the bottom of the concave connecting block (51) is connected to the support plate (2) by a fastener; the connecting block (52) is rotatably connected to the top of the concave connecting block (51) by a rotating shaft; the locking threaded rod (53) is vertically connected to the top of the connecting block (52); the sliding locking block (54) has a smooth through hole in the middle and forms a sliding fit with the locking threaded rod (53); the sliding locking block (54) is provided with a connection structure for connecting to the end of the chain; the locking nut (55) is threadedly engaged with the locking threaded rod (53) and is located above the sliding locking block (54).

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