Copper pipe marking, positioning and bending device of dual-mode pipe bending machine

Abstract

The utility model discloses a copper pipe marking, positioning and bending device of a dual-mode pipe bending machine, which comprises a rack, a feeding assembly arranged on the rack, a pipe bending machine head arranged on the rack, a bending assembly arranged on the pipe bending machine head, and a limiting assembly arranged on the pipe bending machine head, matched with the bending assembly and used for abutting against the position to be bent of a copper pipe. A bending wheel circular groove I is formed in the bending assembly, a pipe bending clamping die is arranged on the bending assembly, a bending explorator is arranged on the limiting assembly, the marking assembly is arranged on the limiting assembly and used for marking a copper pipe, a bending wheel circular groove II is formed below the bending wheel circular groove I, and a marking sheath circular groove is formed below the bending explorator circular groove. The feeding assembly has the freedom degree enabling the copper pipe to move front and back and rotate in the circumferential direction. According to the device, the scribing process and the bending process of the copper pipe are integrated on the same device, and compared with a traditional mode that bending is conducted firstly and then transferring and scribing are conducted, intermediate links such as secondary clamping and transferring are omitted, the production period is greatly shortened, and the machining efficiency is remarkably improved.

Description

Technical Field

[0001] This utility model relates to the field of air conditioning processing equipment, and more specifically, to a copper pipe marking, positioning and bending device for a dual-mode pipe bending machine. Background Technology

[0002] Copper pipes are widely used in the manufacturing of refrigeration equipment, air conditioning piping, and various fluid transport systems due to their excellent thermal conductivity and corrosion resistance. To meet the installation requirements of different equipment, copper pipes often need to undergo bending and shaping processes to conform to specific shape and size requirements. Meanwhile, due to product function requirements, the bent copper pipes need to be fitted with corresponding accessories. Due to process reasons, the accessories can only be installed after the pipe fittings are bent. To ensure accurate positioning of the accessories, it is necessary to mark the pipe fittings with positioning marks for easy installation. In existing devices, after bending, secondary clamping and transportation are required before the copper pipes can be marked. Usually, the bent copper pipes are marked in a centralized manner. For example, an air conditioning pipe positioning and marking device disclosed in patent application number 202421212949.3 uses multiple bent copper pipes for unified clamping and positioning before marking. However, during the marking process, only the outer wall of the copper pipe is marked. In the subsequent installation of copper pipe fittings by humans or machines, the position of the marked lines is not clear enough, making it difficult for humans or machines to identify, and thus it does not have a marking function. Utility Model Content

[0003] One object of this invention is to solve at least the aforementioned problems and / or defects, and to provide at least the advantages described below.

[0004] To achieve these objectives and other advantages according to this utility model, a copper pipe marking and positioning bending device for a dual-mode pipe bending machine is provided, comprising: a frame; a feeding assembly mounted on the frame for clamping one end of the copper pipe; a pipe bending head mounted on the front end face of the frame; a bending assembly mounted on the bending head for bending the copper pipe at the desired bending position; a limiting assembly mounted on the bending head that cooperates with the bending assembly and abuts against the desired bending position of the copper pipe; and a notch mounted on the bending assembly that abuts against the side wall of the copper pipe. The system includes a bending wheel groove I, a bending template groove that spatially matches the bending wheel groove I, and the bending wheel groove I and the bending template groove cooperate to form a bending station in space. It also includes a scribing component disposed on the limiting component for scribing the copper tube. A bending wheel groove II is disposed below the bending wheel groove I, and a scribing sleeve groove is disposed below the bending template groove. The bending wheel groove II, the scribing sleeve groove, and the scribing component cooperate to form a scribing station in space.

[0005] The feeding assembly has the freedom to move the copper tube back and forth and rotate circumferentially in space. Preferably, the limiting assembly includes: a fixed plate slidably disposed on the surface of the tube bending head; a template base is disposed on one side of the fixed plate; and a bending template and a scribing sleeve are disposed on the front end face of the template base.

[0006] The bending template groove and the scribing sleeve groove are respectively provided on the surface of the bending template and the scribing sleeve, and the bending template and the scribing sleeve are detachably connected to the template base.

[0007] Preferably, the bending assembly includes: a bending die that spatially engages with the bending wheel groove I and bends the copper tube at the bending wheel groove I under the rotation of the rotating part; the bending die is disposed on the rotating part and has two degrees of freedom in space.

[0008] The rotating part is rotatably connected to the pipe bending machine head, and the rotating part is provided with a bending wheel that matches the position of the copper pipe to be bent and the marking position.

[0009] The bending wheel groove I and bending wheel groove II are both provided on the surface of the bending wheel.

[0010] Preferably, the marking assembly includes a marking pen, which is mounted on a fixed plate by a limiting member.

[0011] Preferably, the limiting member includes: a mounting plate disposed at the front end of the fixing plate, and a mounting block disposed at the rear end of the fixing plate;

[0012] The mounting plate has a through hole for the drawing pen to pass through, and the mounting block has a mounting hole for the end of the drawing pen to extend into. A spring is installed in the mounting hole to abut against the tail of the drawing pen.

[0013] This utility model has at least the following beneficial effects: by integrating the marking and bending processes of copper tubes into the same equipment, compared with the traditional method of bending first and then transferring and marking, it eliminates intermediate links such as secondary clamping and transfer, greatly shortens the production cycle, and significantly improves processing efficiency.

[0014] Other advantages, objectives and features of this invention will be partly apparent from the following description, and partly understood by those skilled in the art through study and practice of this invention. Attached image description:

[0015] Figure 1 This is a schematic diagram of the overall structure of the marking, positioning and bending device of this utility model.

[0016] Figure 2 A schematic diagram of the spatial structure of the pipe bending machine head and the feeding assembly, bending assembly, limiting assembly, and scribing assembly;

[0017] Figure 3 A schematic diagram of the spatial structure of the pipe bending machine head, bending assembly, limiting assembly, and scribing assembly;

[0018] Figure 4 This is a schematic diagram of the spatial structure of the limiting component;

[0019] Figure 5 A partial sectional view of the spatial structure of the scribing component;

[0020] Figure 6 This is a structural diagram of a bent copper pipe with fittings installed.

[0021] Reference numerals: 1. Frame, 2. Feeding assembly, 3. Bending head, 4. Bending assembly, 41. Bending mold, 42. Rotating part, 43. Bending wheel, 431. Bending wheel groove I, 432. Bending wheel groove II, 5. Limiting assembly, 51. Fixing plate, 52. Mold holder, 53. Bending mold, 531. Bending mold groove, 54. Marking sleeve, 541. Marking sleeve groove, 6. Marking assembly, 61. Marking pen, 62. Mounting plate, 63. Mounting block, 64. Spring, 65. Adjusting rod, 66. Nut, 7. Copper pipe. Detailed implementation method:

[0022] The present invention will now be described in further detail with reference to the accompanying drawings, so that those skilled in the art can implement it based on the description.

[0023] It should be understood that terms such as “having,” “comprising,” and “including” as used herein do not exclude the presence or addition of one or more other elements or combinations thereof.

[0024] It should be noted that in the description of this utility model, the terms indicating 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. They do not 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. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0025] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "installed", "equipped with", "sleeved / connected", "connected", etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0026] Furthermore, in this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Moreover, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0027] like Figure 1 The diagram illustrates a dual-mode tube bending machine with a copper tube marking and positioning bending device, comprising: a frame 1; a feeding assembly 2 mounted on the frame 1 to clamp one end of a copper tube 7; a tube bending head 3 mounted on the front end face of the frame 1; a bending assembly 4 mounted on the bending head 3 to bend the copper tube 7 at the desired bending position; a limiting assembly 5 mounted on the bending head 3 that cooperates with the bending assembly 4 and abuts against the desired bending position of the copper tube 7; a bending wheel groove I 431 on the bending assembly 4 that abuts against the side wall of the copper tube 7; and a bending wheel groove I 431 on the limiting assembly 5 that abuts against the side wall of the copper tube 7. The bending wheel groove I 431 and the bending template groove 531 cooperate in space to form a bending station in space. The system also includes a marking component 6 set on the limiting component 5 to mark the copper tube 7. A bending wheel groove II 432 is set below the bending wheel groove I 431 and a marking sleeve groove 541 is set below the bending template groove 531. The bending wheel groove II 432, the marking sleeve groove 541 and the marking component 6 cooperate to form a marking station in space.

[0028] The feeding assembly 2 has the freedom to move the copper tube 7 back and forth and rotate it circumferentially in space.

[0029] Working principle:

[0030] The bending head 3 rises and moves left and right, releasing the limiting component 5. The copper tube 7, having undergone processing in the previous step and transported by the external transfer component, is placed in the device, and one end of the copper tube 7 is firmly clamped by the feeding component 2. By controlling the feeding component 2, the copper tube 7 is moved back and forth, precisely moving the position of the copper tube 7 to be marked to the marking station. Then, with the left and right movement of the bending head 3, the copper tube 7 is pressed against the bending wheel groove II 432, and the limiting component 5 clamps it, so that the two side walls of the copper tube 7 to be marked are respectively engaged with the bending wheel groove II 432 and the marking sleeve groove 541, limiting its position. After the position of the copper tube 7 is determined to be correct, the marking component 6 begins to work. Since the scribing component 6 is mounted on the limiting component 5, it can move synchronously with the limiting component 5 to the scribing position on the copper tube 7. During the scribing process, the feeding component 2 is used to rotate the copper tube 7 circumferentially, thereby forming a continuous scribing line, a half circle, or at different angles on the outer surface of the copper tube 7. After the scribing is completed, the limiting component 5 is released, and the bending head 3 moves left and right to make the copper tube 7 exit the bending wheel groove. The bending head 3 then moves downward and left and right to make the copper tube 7 fit tightly against the bending wheel groove I431. The feeding component 2 is operated again to move the copper tube 7 back and forth, accurately moving the position of the copper tube 7 to be bent to the bending station for bending. During the bending process, the limiting component 5 is tightly pressed against the other side of the position of the copper tube 7 to be bent, providing stable support and limiting function for the bending operation, ensuring that the copper tube 7 is bent according to the preset angle and shape. After completing one scribing and bending operation, if multiple bending and scribing operations are required for the copper tube 7, the above scribing and bending stages can be repeated. The copper tube 7 is moved back and forth and rotated circumferentially by the feeding component 2. Combined with the up and down and left and right movement of the tube bending head 3, the copper tube 7 is marked and bent at different positions in sequence until the expected processing effect is achieved.

[0031] In the above technical solution, the limiting component 5 includes: a fixing plate 51 slidably disposed on the surface of the pipe bending head 3, a template base 52 disposed on one side of the fixing plate 51, and a bending template 53 and a scribing sleeve 54 disposed on the front end face of the template base 52.

[0032] The bending template groove 531 and the scribing sleeve groove 541 are respectively disposed on the surfaces of the bending template 53 and the scribing sleeve 54, and the bending template 53 and the scribing sleeve 54 are detachably connected to the template base 52. Using this technical solution, the fixing plate 51, which is slidably disposed on the surface of the pipe bending head 3, slides outward when the copper pipe 7 is conveyed to the feeding assembly 2 through the external transfer assembly, facilitating the entry and exit of the copper pipe 7. During the scribing and bending stages, the fixing plate 51 moves towards the copper pipe 7. The bending template groove 531 and the scribing sleeve groove 541 respectively abut and limit the copper pipe 7 during scribing and bending. All sheaths 54 are made of nylon, and the bending template 53 and the scribing sheath 54 are detachably connected to the front end of the template base 52 by bolt assembly. The nylon bending template 53 and the scribing sheath 54 prevent the copper tube 7 from being worn when it rotates. At the same time, the detachable connection ensures that when the bending template 53 and the scribing sheath 54 are worn to a certain extent, the bending template 53 and the scribing sheath 54 can be quickly replaced by disassembling the bolt assembly (not shown in the figure).

[0033] The fixing plate 51 slides on the pipe bending head 3 via a guide rail and a drive mechanism (the guide rail and drive mechanism are conventional components and are not shown in the figure).

[0034] In the above technical solution, the bending assembly 4 includes: a bending die 41 that spatially cooperates with the bending wheel groove I 431 and bends the copper tube 7 at the bending wheel groove I 431 under the rotation of the rotating part 42. The bending die 41 is disposed on the rotating part 42 and has two degrees of freedom in space.

[0035] The rotating part 42 is rotatably connected to the pipe bending head 3, and the rotating part 42 is provided with a bending die that matches the bending position and the marking position of the copper pipe 7.

[0036] In this design, both the bending wheel groove I 431 and the bending wheel groove II 432 are disposed on the surface of the bending wheel 43. Using this technical solution, the bending die 41 is disposed in a groove on one side of the rotating part 42, and moves up and down and left and right within the groove of the rotating part 42 via an external cylinder or other driving source. The bending die 41 moves closer to the bending wheel groove I 431 to close or moves away from the bending wheel groove I 431 to open (e.g., a CNC pipe bending machine and bending method disclosed in patent application 201710892483.4, in which a circular die and a clamping die are mounted on a swing arm via a clamping drive mechanism; the clamping drive mechanism includes a drive mechanism for...). The moving clamping mold closes when it approaches the circular mold or opens when it moves away from the circular mold. Through the rotation of the transmission shaft, the copper tube 7 is bent. The bending principle and effect of this device are similar to those of this patent. Therefore, this patent will not elaborate on how the copper tube 7 is bent. Alternatively, the cutting tube end hole pulling CNC pipe bending machine produced by Zhejiang Changxing Heliang Intelligent Equipment Co., Ltd., model HLCFB12-QX1-HX1-BK-R2, can accurately apply force to the copper tube 7 at the circular groove I431 of the bending wheel. During the rotation of the rotating part 42, the bending wheel groove I 431 on the bending wheel 43 positions the copper tube 7. The bending die 41 and the bending wheel groove I 431 work together to bend the copper tube 7 according to the preset angle of the rotation of the rotating part 42. At the same time, when it is necessary to bend the copper tube 7 in different spatial directions, the feeding assembly 2 rotates the copper tube 7 circumferentially. Then, through the above steps, the copper tube 7 is bent again.

[0037] The rotating part 42 is mounted on the bending head 3 via a rotating shaft, and the feeding assembly 2 is configured as a three-lobed gripper driven by a gripper cylinder to clamp the copper tube 7.

[0038] In the above technical solution, the marking assembly 6 includes a marking pen 61, which is mounted on a fixed plate 51 via a limiting member. Using this technical solution, the marking pen 61 is mounted on the fixed plate 51 via the limiting member, and the fixed plate 51 can slide on the surface of the pipe bending head 3. During the marking operation on the copper pipe 7, the marking pen 61 can be precisely moved to the marking position on the copper pipe 7 by controlling the position of the fixed plate 51. The tip of the marking pen 61 contacts the surface of the copper pipe 7, and the feeding assembly 2 clamps the copper pipe 7 and rotates it circumferentially to complete the marking operation on the surface of the copper pipe 7.

[0039] In the above technical solution, the limiting component includes: a mounting plate 62 disposed at the front end of the fixing plate 51, and a mounting block 63 disposed at the rear end of the fixing plate 51.

[0040] The mounting plate 62 has a through hole for the marking pen 61 to pass through, and the mounting block 63 has a mounting hole for the end of the marking pen 61 to extend into. A spring 64 is installed in the mounting hole to abut against the tail of the marking pen 61. With this technical solution, the spring 64 abuts against the marking pen 61, allowing the marking pen 61 to float elastically when in contact with the surface of the copper tube 7, automatically adapting to deviations in the outer diameter or unevenness of the copper tube 7. The mounting plate 62 and mounting block 63 are respectively located at the front and rear ends of the fixing plate 51, facilitating the installation of the marking pen 61. An adjustment component for adjusting the tension of the spring 64 is provided on the other side of the mounting block 63, including an adjusting rod 65 that extends into the mounting block 63 and abuts against the spring 64. The adjusting rod 65 is threadedly connected to a nut 66 located on the side wall of the mounting block 63. By rotating the adjusting rod 65, the deformation of the spring 64 is compressed, thereby adjusting the contact force between the marking pen 61 and the surface of the copper tube 7.

[0041] The front end of the drawing pen 61 is snapped into the mounting plate 62.

[0042] Although the embodiments of this utility model have been disclosed above, they are not limited to the applications listed in the specification and embodiments. They can be applied to various fields suitable for this utility model. For those skilled in the art, other modifications can be easily made. Therefore, without departing from the general concept defined by the claims and their equivalents, this utility model is not limited to the specific details and the illustrations shown and described herein.

Claims

1. A dual mode tube bender copper tube scribe positioning and bending device comprising: A frame, a feeding assembly that clamps one end of a copper tube on the frame, a tube bending head on the front end face of the frame, a bending assembly on the tube bending head for bending the copper tube at the bending position, a limiting assembly on the tube bending head that cooperates with the bending assembly and abuts the copper tube at the bending position, a bending wheel groove I on the bending assembly that abuts against the side wall of the copper tube, and a bending template groove on the limiting assembly that spatially cooperates with the bending wheel groove I. The bending wheel groove I and the bending template groove cooperate to form a bending station in space. The device is characterized by further including: a marking assembly on the limiting assembly for marking the copper tube; a bending wheel groove II below the bending wheel groove I; and a marking sleeve groove below the bending template groove. The bending wheel groove II, the marking sleeve groove, and the marking assembly cooperate to form a marking station in space. The feeding assembly has the freedom to move the copper tube back and forth and rotate it circumferentially in space.

2. The dual mode tube bender copper tube scribe positioning and bending apparatus of claim 1 wherein, The limiting component includes: a fixed plate slidably disposed on the surface of the pipe bending machine head, a template base disposed on one side of the fixed plate, and a bending template and a scribing sleeve disposed on the front end face of the template base. The bending template groove and the scribing sleeve groove are respectively provided on the surface of the bending template and the scribing sleeve, and the bending template and the scribing sleeve are detachably connected to the template base.

3. The copper pipe marking, positioning, and bending device for a dual-mode pipe bending machine according to claim 2, characterized in that, The bending assembly includes: a bending die that spatially engages with the bending wheel groove I and bends the copper tube at the bending wheel groove I under the rotation of the rotating part; the bending die is disposed on the rotating part and has two degrees of freedom in space. The rotating part is rotatably connected to the pipe bending head, and the rotating part is provided with a bending wheel that matches the position of the copper pipe to be bent and the marking position. The bending wheel groove I and bending wheel groove II are both provided on the surface of the bending wheel.

4. The dual mode tube bender copper tube scribe positioning and bending apparatus of claim 1 wherein, The line drawing assembly includes a line drawing pen, which is mounted on a fixed plate via a limiting member.

5. The dual mode tube bender copper tube scribe positioning and bending apparatus of claim 4 wherein, The limiting component includes: a mounting plate disposed at the front end of the fixed plate, and a mounting block disposed at the rear end of the fixed plate; The mounting plate has a through hole for the drawing pen to pass through, and the mounting block has a mounting hole for the end of the drawing pen to extend into. A spring is installed in the mounting hole to abut against the tail of the drawing pen.

Images