Portable thin-wall thin tube bending tool and using method

Abstract

The invention provides a portable thin-wall thin pipe bending tool and a using method. The tool comprises a support, and a plurality of pipe supporting parts arranged at intervals are arranged on the support; the pipe pressing part is located above the gap of the pipe supporting part and connected with the support through a lifting part, and the lifting part is used for adjusting the distance between the pipe pressing part and the pipe supporting part; and the power part is detachably connected with the pipe pressing part and used for driving the pipe pressing part to rotate around the axis of the pipe pressing part. The invention provides a portable thin-wall thin tube bending tool which is light in structure and convenient to mount, dismount and carry, a thin-wall thin tube is bent slightly and repeatedly by the portable thin-wall thin tube bending tool, the extrusion degree of the thin-wall thin tube during bending each time is controlled through a graduated scale and other components, the condition that the thin-wall thin tube is bent flat is effectively avoided, and the working efficiency of the thin-wall thin tube is improved. The bending quality is improved; and the material loss is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of pipe bending equipment, in particular to a portable thin-walled tube bending tool and a use method thereof. Background Art

[0002] During the installation of the electromechanical terminal, the terminal metal water pipe and the terminal copper pipe on site need to be bent and then accurately positioned for installation. The diameter of the above-mentioned terminal metal water pipe and the terminal copper pipe is often only a dozen millimeters, and the wall thickness is only 1-2 millimeters. If a manual bender is used, it is easy to flatten the pipe due to uneven force and operating errors. The hydraulic pipe bender is large and heavy, which is not conducive to on-site transportation and the construction efficiency is very low. Summary of the invention

[0003] The object of the present invention is to provide a portable thin-walled tube bending tool and a method of use to solve the problems in the above background.

[0004] The technical solution adopted by the present invention is: a portable thin-walled capillary bending tool, which comprises:

[0005] A support, on which a plurality of spaced pipe support portions are arranged;

[0006] A pipe pressing part, the pipe pressing part is located above the gap of the pipe supporting part and is connected to the support through a lifting part, and the lifting part is used to adjust the distance between the pipe pressing part and the pipe supporting part;

[0007] The power unit is detachably connected to the tube pressing unit and is used to drive the tube pressing unit to rotate around its own axis.

[0008] Furthermore, the lifting part includes a mounting frame, a limiting rod and a distance adjusting member, one end of the mounting frame is rotatably connected to the support, and the other end is provided with a sliding hole; the bottom end of the limiting rod is connected to the support, and the top end is passed through the sliding hole; the distance adjusting member is arranged on the limiting rod to adjust the distance between the mounting frame and the bottom end of the limiting rod.

[0009] Furthermore, the mounting frame includes a bearing seat, a first wing plate and a second wing plate, the first wing plate and the second wing plate are respectively arranged on the radial sides of the bearing seat, and are respectively connected to the support and the limit rod; the bearing seat is provided with a bearing for connecting the tube pressing part.

[0010] Furthermore, a pressing groove corresponding to the position of the tube pressing portion is formed on the support, and the pressing groove is located in the gap of the tube supporting portion and is recessed from the top end to the bottom end of the support.

[0011] Furthermore, a scale is arranged on the support, and the scale corresponds to the position of the limit rod, so as to indicate the lifting amount of the second wing panel.

[0012] Furthermore, a stiffening spring is sleeved on the limiting rod, and the top end of the stiffening spring abuts against the bottom surface of the mounting frame.

[0013] Furthermore, a plurality of rotating sleeves are sleeved on the tube supporting portion, and the rotating shafts of the rotating sleeves are parallel to the axis of the tube pressing portion.

[0014] Furthermore, the power part is an electric wrench or a manual wrench, and a clamping part is arranged on the end of the pipe pressing part away from the support, and the clamping part is clamped with the power part.

[0015] The technical solution of the present invention also includes: a method of using the portable thin-walled capillary bending tool as described above, comprising the steps of:

[0016] S1, placing the thin-walled capillary tube between the tube support part and the tube pressing part;

[0017] S2, using the lifting part to reduce the distance between the tube pressing part and the tube supporting part;

[0018] S3, using a power unit to drive the tube pressing unit to rotate, so as to bend the thin-walled tube into a first arc;

[0019] S4, repeating steps S2 to S3 for several times, bending the same part of the thin-walled tube into a second curvature, wherein the second curvature is greater than the first curvature.

[0020] The beneficial effects of the present invention are as follows: a portable thin-walled capillary bending tool is provided, which has a light structure and is easy to install and carry. The thin-walled capillary is bent in small quantities and multiple times by the tool, and the degree of squeezing of the thin-walled capillary is controlled during each bending by components such as a scale, thereby effectively avoiding the thin-walled capillary being flattened, improving the bending quality and reducing material loss. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is an overall structural diagram of an embodiment of the present invention;

[0022] Figure 2 is a structural exploded diagram of an embodiment of the present invention;

[0023] Figure 3 is a structural diagram of a support in an embodiment of the present invention;

[0024] Figure 4 is a structural diagram of a mounting frame in an embodiment of the present invention;

[0025] Figure 5 is a first use state diagram of an embodiment of the present invention;

[0026] Figure 6 is a second use state diagram of an embodiment of the present invention;

[0027] Figure 7 is a third use state diagram of an embodiment of the present invention;

[0028] Figure 8 is a fourth use state diagram of an embodiment of the present invention;

[0029] In the figure:

[0030] 1. Support; 11. Bottom plate; 12. First side plate; 121. Pressing groove; 122. Mounting groove; 13. Second side plate;

[0031] 2. Pipe support;

[0032] 3. Pipe pressure part;

[0033] 4. Lifting part; 41. Mounting frame; 411. Bearing seat; 412. First wing plate; 413. Second wing plate; 414. Sliding hole; 415. Sleeve; 42. Limit rod; 43. Adjusting member; 44. Bearing; 45. Stiffening spring;

[0034] 5. Power department;

[0035] 6. Ruler;

[0036] 7. Clamping part;

[0037] 8. Rotate the sleeve. DETAILED DESCRIPTION

[0038] The technical solutions of the embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0039] In the description of the embodiments of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "top", "bottom", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "set" and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0040] Reference Figure 1-8The present embodiment provides a portable thin-walled capillary tube bending tool, the structure of which includes: a support 1, a tube support part 2, a tube pressing part 3, a lifting part 4 and a power part 5. A plurality of tube support parts 2 are arranged at intervals on the support 1. The tube pressing part 3 and the tube support part 2 are arranged on the same side of the support 1. The tube pressing part 3 is located above the gap between adjacent tube support parts 2 and is connected to the support 1 through the lifting part 4. The lifting part 4 can adjust the distance between the tube pressing part 3 and the tube support part 2. The power part 5 is detachably connected to the end of the tube pressing part 3 away from the lifting part 4, and can drive the tube pressing part 3 to rotate around its own axis. The above-mentioned bending tool is adopted to achieve high-quality bending of thin-walled capillary tubes by adjusting the distance between the tube support part 2 and the tube pressing part 3 by a small amount and multiple times, and bending the same part of the thin-walled capillary tube between the two, so as to avoid the situation where the thin-walled capillary tube is bent flat due to the miscontrol of the operating force of the manual bender.

[0041] In this embodiment, the support 1 can be constructed by channel steel cutting, sheet metal forming, plate welding, etc., and its specific structure includes a bottom plate 11, a first side plate 12 and a second side plate 13. The first side plate 12 is used to install the pipe support part 2, and the second side plate 13 is arranged opposite to the first side plate 12, and is used to install the lifting part 4 located between the first side plate 12 and the second side plate 13. A pressing groove 121 corresponding to the position of the pipe pressing part 3 is opened on the first side plate 12. The pressing groove 121 is located in the gap between the adjacent pipe support parts 2, and is recessed from the top end to the bottom end of the first side plate 12, providing an avoidance path for lowering the height of the pipe pressing part 3.

[0042] The structure of the lifting part 4 can be configured according to specific needs. This embodiment only exemplifies some feasible implementation schemes. Figure 2 and 4 The specific structure of the lifting part 4 includes: a mounting frame 41, a limiting rod 42 and a distance adjusting member 43. The mounting frame 41 includes a bearing seat 411, a first wing plate 412 and a second wing plate 413. The first wing plate 412 and the second wing plate 413 are respectively arranged at the radial ends of the bearing seat 411. The first wing plate 412 is rotatably connected to the first side plate 12 and the second side plate 13. A sliding hole 414 is opened on the second wing plate 413. The bottom end of the limiting rod 42 is connected to the bottom plate 11, and the top end is penetrated in the sliding hole 414. The distance adjusting member 43 is arranged on the limiting rod 42 to adjust the distance between the second wing plate 413 and the bottom end of the limiting rod 42. The bearing seat 411 is provided with a bearing 44 for connecting the pipe pressing part 3.

[0043] Specifically, the side wall of the limiting rod 42 can be configured with a thread, and the distance adjusting member 43 can be selected with a nut that is compatible with its thread. By changing the position of the distance adjusting member 43 on the limiting rod 42, the distance between the second wing plate 413 and the bottom end of the limiting rod 42 can be changed. Since the first wing plate 412 is rotatably connected to the first side plate 12 and the second side plate 13, the rotation of the mounting frame 41 can be realized, thereby adjusting the height of the pipe pressing part 3, that is, adjusting the distance between the pipe pressing part 3 and the pipe supporting part 2.

[0044] To facilitate operation, a distance adjusting member 43 can be configured only above the second wing plate 413, and a stiffening spring 45 can be configured below the second wing plate 413. The stiffening spring 45 is sleeved on the limiting rod 42, and the top end abuts against the bottom surface of the second wing plate 413. The stiffening spring 45 is used to provide an upward supporting force for the second wing plate 413. When adjusting the distance between the tube support portion 2 and the tube pressing portion 3, it is only necessary to adjust the distance adjusting member 43 above the second wing plate 413, and the adjustment efficiency can be greatly improved.

[0045] When using the tool to bend thin-walled capillary tubes, since the thin-walled capillary tubes themselves have a certain elasticity, when the tube pressing part 3 presses down the thin-walled capillary tube, the tube wall in contact with the tube pressing part 3 will undergo a certain slight deformation, but this slight deformation can be restored, and will not affect the inner cross-sectional shape of the thin-walled capillary tube. In the process of rotating the tube pressing part 3 using the power part 5, since the tube pressing part 3 and the tube supporting part 2 are respectively pressed against the side walls of the thin-walled capillary tube on the upper and lower sides, the rotation of the tube pressing part 3 will drive the thin-walled capillary tube to move along its own length, thereby producing a gentle bending effect on the thin-walled capillary tube. As long as the principle of small amounts and multiple times is followed, the thin-walled capillary tube can be bent to a specified curvature without changing the inner cross-sectional shape of the thin-walled capillary tube.

[0046] In the process of multiple operations with a small amount of work, in order to further avoid the occurrence of flattening of thin-walled capillary tubes, a tool with a scale can be used for indication in consideration of the different experiences of different construction workers. Of course, a scale 6 can also be constructed on the tool. For example, a mounting groove 122 corresponding to the position of the limit rod 42 is opened on the first side plate 12, and the scale 6 is constructed in the mounting groove 122. When adjusting the position of the distance adjusting member 43, the lifting amount of the second wing plate 413 can be marked, so as to accurately control the amount of pressure applied to the thin-walled capillary tube by the tube pressing part 3 during each operation to avoid the thin-walled capillary tube from being flattened.

[0047] The tube support part 2 and the tube pressing part 3 can be constructed by cylindrical rods to provide gentle, continuous and smooth pressure on the thin-walled tube; in order to improve the smoothness of the movement of the thin-walled tube during the bending process, a plurality of rotating sleeves 8 can be sleeved on the tube support part 2, and the rotating axis of the rotating sleeve 8 is parallel to the axis of the tube pressing part 3. The rotating sleeve 8 can be configured with a bearing or other components, and the shape is preferably cylindrical.

[0048] In order to facilitate installation, disassembly and transfer, the pipe support part 2 can be constructed with a long screw, and a nut can be constructed on the side of the first side plate 12 facing the second side plate 13. After the rotating sleeve is set on the pipe support part 2, the pipe support part 2 passes through the first side plate 12 and is locked with the nut. Of course, the connection between the first wing plate 412 and the first side plate 12 and the second side plate 13 can also be achieved by a combination of long bolts and nuts. According to the thickness, rigidity and other conditions of the first wing plate 412, it can also be considered to weld a sleeve 415 on the side end of the first wing plate 412, and pass the long bolt through the sleeve 415 to improve the structural stability of the mounting frame 41 and the connection stability with the base.

[0049] In this embodiment, the power part 5 can be an electric wrench or a manual wrench, and the end of the pipe pressing part 3 away from the support 1 is provided with a clamping part 7, and the clamping part 7 is clamped with the power part 5. The clamping part 7 can be a common shape structure such as an external hexagonal block and an internal hexagonal slot, and can be configured according to the selected power part 5.

[0050] This embodiment also provides a method for using the portable thin-walled capillary bending tool. Figure 5-8 , the method comprises the following steps:

[0051] S1, placing the thin-walled capillary tube between the tube support part 2 and the tube pressing part 3;

[0052] S2. Use the lifting part 4 to reduce the distance between the tube pressing part 3 and the tube supporting part 2, so that the tube pressing part 3 and the tube supporting part 2 are pressed against the thin-walled capillary tube, and use the tube pressing part 3 to squeeze the thin-walled capillary tube, so that the side wall of the thin-walled capillary tube is slightly deformed. The degree of each slight deformation is determined according to the material and wall thickness of the thin-walled capillary tube, and the descending amount of the tube pressing part 3 is marked with a scale 6 to accurately control the degree of slight deformation;

[0053] S3, using the power unit 5 to drive the tube pressing unit 3 to rotate, the tube pressing unit 3 and the tube supporting unit 2 together drive the thin-walled capillary tube to move, and squeeze and bend the thin-walled capillary tube during the movement to form a first curvature;

[0054] S4, repeating steps S2 to S3 for several times, bending the same part of the thin-walled tube to a second curvature, the second curvature > the first curvature. The second curvature is the target curvature, and there may be several intermediate curvatures between the second curvature and the first curvature, and the intermediate curvature increases with the increase in the number of repetitions of steps S2 to S3.

[0055] Compared with the prior art, the beneficial effects of the present invention are: providing a portable thin-walled capillary bending tool, which has a light structure and is easy to install and carry. The tool is used to bend thin-walled capillary tubes in small quantities and multiple times, and the degree of squeezing of the thin-walled capillary tubes during each bending is controlled by components such as a scale 6, effectively avoiding the occurrence of thin-walled capillary tubes being flattened, improving the bending quality and reducing material loss.

[0056] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

[0057] The above are preferred embodiments of the present invention. It should be pointed out that, for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A portable thin-walled tube bending tool, characterized in that: include: A support, on which a plurality of spaced pipe support portions are arranged; A pipe pressing part, the pipe pressing part is located above the gap of the pipe supporting part and is connected to the support through a lifting part, and the lifting part is used to adjust the distance between the pipe pressing part and the pipe supporting part; The power unit is detachably connected to the tube pressing unit and is used to drive the tube pressing unit to rotate around its own axis.

2. The portable thin-walled tube bending tool according to claim 1 is characterized in that: The lifting part includes a mounting frame, a limiting rod and a distance adjusting member. One end of the mounting frame is rotatably connected to the support, and the other end is provided with a sliding hole. The bottom end of the limiting rod is connected to the support, and the top end is passed through the sliding hole. The distance adjusting member is arranged on the limiting rod to adjust the distance between the mounting frame and the bottom end of the limiting rod.

3. The portable thin-walled tube bending tool according to claim 2, characterized in that: The mounting frame includes a bearing seat, a first wing plate and a second wing plate. The first wing plate and the second wing plate are respectively arranged on the radial sides of the bearing seat and are respectively connected to the support and the limit rod; the bearing seat is provided with a bearing for connecting the tube pressing part.

4. The portable thin-walled tube bending tool according to claim 3 is characterized in that: The support is provided with a pressing groove corresponding to the position of the tube pressing portion. The pressing groove is located in the gap of the tube supporting portion and is recessed from the top end to the bottom end of the support.

5. The portable thin-walled tube bending tool according to claim 3 or 4, characterized in that: A scale is arranged on the support, and the scale corresponds to the position of the limit rod and is used to indicate the lifting amount of the second wing plate.

6. The portable thin-walled tube bending tool according to claim 5, characterized in that: A stiffening spring is sleeved on the limiting rod, and the top end of the stiffening spring abuts against the bottom surface of the mounting frame.

7. The portable thin-walled tube bending tool according to any one of claims 1 to 4 and 6, characterized in that: The tube support portion is sleeved with a plurality of rotating sleeves, and the rotating shafts of the rotating sleeves are parallel to the axis of the tube pressing portion.

8. The portable thin-walled tube bending tool according to claim 7, characterized in that: The power part is an electric wrench or a manual wrench, and a clamping part is arranged on the end of the pipe pressing part away from the support, and the clamping part is clamped with the power part.

9. A method for using the portable thin-walled capillary tube bending tool according to any one of claims 1 to 8, characterized in that: Includes steps: S1, placing the thin-walled capillary tube between the tube support part and the tube pressing part; S2, using the lifting part to reduce the distance between the tube pressing part and the tube supporting part; S3, using a power unit to drive the tube pressing unit to rotate, so as to bend the thin-walled tube into a first arc; S4, repeating steps S2 to S3 for several times, bending the same part of the thin-walled tube into a second curvature, wherein the second curvature is greater than the first curvature.

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