Bending device for metal pipe fitting

Abstract

The utility model discloses a bending device for a metal pipe fitting, and relates to the technical field of automobile parts, the bending device comprises a base, a reinforcing rib, a vertical plate and a handle, one side of the vertical plate is provided with a limiting mechanism, and the other side of the vertical plate is fixedly connected with a bending die mechanism. After the metal pipe fitting is horizontally clamped by the limiting mechanism, the position of the outer mold is adjusted and fixed, the handle is held by hand, the outer mold rotates clockwise, the power arm does circular motion, at the moment, the fixed outer mold bends the metal pipe fitting towards one of the first mold, the second mold and the third mold, and therefore bending of one position is completed; after the limiting mechanism and the bending mechanism return to the initial positions, the next die is selected according to the bending radius of the next position, next bending is carried out according to the same method, after several times of repeating, one tool can bend one metal pipe fitting into shapes with different radiuses, the universality of the device is improved, and the investment cost of enterprises is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile parts, in particular to a bending device for metal pipes. Background Art

[0002] As cars become the primary means of transportation for most people, they are increasingly concerned with the vehicle's piping system and driver comfort. Consequently, automotive space design is trending towards integration and centralization, and the design of various piping systems is becoming more complex and diversified.

[0003] When installing automotive pipes, ample space must be reserved to prevent ruptures caused by prolonged friction with other components. This is especially true for air conditioning, suspension, and brake pipes. To create more spacious interior space, designers are leaving less and less space for pipe routing, leading to increasingly complex routings. Existing bending tooling is unable to bend pipes to varying radii. Furthermore, with the rapid pace of product upgrades, mechanical, fully automatic pipe bending machines are expensive and lack versatility. Utility Model Content

[0004] The purpose of the utility model is to solve the problems existing in the prior art and to propose a bending device for metal pipes.

[0005] In order to achieve the above-mentioned purpose, the present invention adopts the following technical solutions: a bending device for metal pipe fittings, comprising a base, a reinforcing rib, a vertical plate and a handle, a limiting mechanism is provided on one side of the vertical plate, and a bending mold mechanism is fixedly connected to the other side of the vertical plate, and a bending mechanism is rotatably connected to the outer side of the bending mold mechanism, and the bending mold mechanism includes a third mold, a second mold and a first mold fixedly installed in sequence on the central shaft and the outer ring surface thereof, and the bending mechanism includes a T-bar, a connecting plate, a positioning hole, an outer mold, a positioning rod and a sleeve, and the sleeve is rotatably connected to the central shaft through multiple groups of bearings, one group of the connecting plates is fixedly connected to the upper side of the sleeve, and the other group of the connecting plates is located above the first mold and rotatably connected to the central shaft, and the outer mold is located in the middle position of the two groups of connecting plates, and the outer mold embeds the metal pipe fitting into the middle groove of the first mold, the second mold and the third mold.

[0006] Preferably, a positioning hole is opened inside the connecting plate, and the positioning rod passes through the positioning hole and the inside of the outer mold.

[0007] Preferably, the two groups of connecting plates are fixedly connected to one end of the T-shaped rod, and the handle is fixedly connected to the other end of the T-shaped rod.

[0008] Preferably, the lower end of the central axis is fixedly connected to the middle part of the upper side of the base, and the reinforcing rib is supported between the vertical plate and the base.

[0009] Preferably, the limiting mechanism includes a threaded rod, a movable block and a fixed block, and the fixed block is fixedly connected to a groove on one side of the vertical plate.

[0010] Preferably, a ridge is provided in the groove of the vertical plate, and the lower end of the movable block is slidably engaged with the ridge.

[0011] Preferably, the threaded rod is fixedly connected to the movable block, and the threaded rod is threadedly connected to the groove side column of the vertical plate.

[0012] Compared with the prior art, the advantages and positive effects of the present invention are:

[0013] 1. In the present invention, a mold is selected according to the required bending radius. After the limiting mechanism clamps the metal pipe horizontally, the position of the outer mold is adjusted to fit the metal pipe. After its position is fixed, the handle is held and rotated clockwise. The power arm composed of the connecting plate, the T-bar and the handle makes a circular motion with the central axis as the center. At this time, the fixed outer mold bends the metal pipe toward one of the first mold, the second mold and the third mold, thereby completing a bend. After the limiting mechanism and the bending mechanism return to their initial positions, the next mold is selected according to the radius of the next bend, and the next bend is performed in the same way. After repeating several times, one tooling can realize bending a metal pipe into shapes of different radii, thereby improving the versatility of the device and reducing the investment cost of the enterprise.

[0014] 2. In the utility model, by horizontally clamping the metal pipe fitting in the corresponding groove of the fixed clamping block, rotating the threaded rod, the threaded rod spirally rotates in the side column of the vertical plate groove, applying thrust to the movable clamping block, so that the movable clamping block slides closer to the movable clamping block along the convex ridge. Under the action of the corresponding groove of the movable clamping block, the metal pipe fitting is clamped to prevent the metal pipe fitting from shifting and improve the bending quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the three-dimensional structure of a bending device for metal pipes proposed in the utility model;

[0016] Figure 2 This is a first three-dimensional structural diagram of the positional relationship between a bending die mechanism and a bending mechanism in a bending device for metal pipes proposed by the present invention;

[0017] Figure 3 This is a second three-dimensional structural diagram of the positional relationship between a bending die mechanism and a bending mechanism in a bending device for metal pipes proposed by the present invention;

[0018] Figure 4 The present invention provides a three-dimensional structural diagram of a limiting mechanism in a bending device for metal pipes.

[0019] Legend: 1. Base; 2. Reinforcement rib; 3. Vertical plate; 4. Bending mold mechanism; 41. First mold; 42. Second mold; 43. Third mold; 44. Center axis; 5. Limiting mechanism; 51. Threaded rod; 52. Raised ridge; 53. Movable clamp; 54. Fixed clamp; 6. Bending mechanism; 61. T-bar; 62. Connecting plate; 63. Positioning hole; 64. Outer mold; 65. Positioning rod; 66. Sleeve; 7. Handle. DETAILED DESCRIPTION

[0020] In order to more clearly understand the above-mentioned purpose, features and advantages of the present invention, the present invention is further described below with reference to the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features therein can be combined with each other without conflict.

[0021] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0022] Example 1: Figure 1 - Figure 4 As shown, the utility model provides a bending device for metal pipe fittings, including a base 1, a reinforcing rib 2, a vertical plate 3 and a handle 7. A limiting mechanism 5 is provided on one side of the vertical plate 3, and a bending mold mechanism 4 is fixedly connected to the other side of the vertical plate 3. The outer side of the bending mold mechanism 4 is rotatably connected to a bending mechanism 6. The bending mold mechanism 4 includes a central shaft 44 and a third mold 43, a second mold 42 and a first mold 41 fixedly installed on its outer ring surface in sequence. The bending mechanism 6 includes a T-bar 61, a connecting plate 62, a positioning hole 63, an outer mold 64, a positioning rod 65 and a sleeve 66. The sleeve 66 is rotatably connected to the central shaft 44 through multiple sets of bearings, one of which is a connecting plate. 62 is fixedly connected to the upper side of the sleeve 66, and another set of connecting plates 62 is located above the first mold 41 and is rotatably connected to the central shaft 44. The outer mold 64 is located in the middle position of the two sets of connecting plates 62. The outer mold 64 embeds the metal pipe fittings into the middle grooves of the first mold 41, the second mold 42 and the third mold 43. A positioning hole 63 is opened inside the connecting plate 62, and the positioning rod 65 passes through the positioning hole 63 and the interior of the outer mold 64. The two sets of connecting plates 62 are fixedly connected to one end of the T-shaped rod 61, and the handle 7 is fixedly connected to the other end of the T-shaped rod 61. The lower end of the central shaft 44 is fixedly connected to the middle part of the upper side of the base 1, and the reinforcing rib 2 is supported between the vertical plate 3 and the base 1.

[0023] The following is a detailed description of the specific settings and functions of this embodiment: the mold is selected according to the required bending radius. After the limiting mechanism 5 clamps the metal pipe horizontally, the metal pipe is also clamped in one of the grooves of the first mold 41, the second mold 42 and the third mold 43. In the initial state, the connecting plate 62 is parallel to the vertical plate 3. The position of the outer mold 64 is adjusted so that the outer mold 64 also fits the metal pipe. The positioning rod 65 passes through the positioning hole 63 and the outer mold 64 to fix the position of the outer mold 64. Then, hold the handle 7 and turn it clockwise. The power arm composed of the connecting plate 62, the T-shaped rod 61 and the handle 7 takes the central axis 44 as the center of the circle. It makes circular motion, and one set of connecting plates 62 drives the sleeve 66 to rotate outside the central shaft 44 under the cooperation of the bearing to ensure the stable rotation of the power arm. At this time, the fixed outer mold 64 bends the metal pipe toward one of the first mold 41, the second mold 42 and the third mold 43, thereby completing a bend. After the limiting mechanism 5 and the bending mechanism 6 return to their initial positions, the next mold is selected according to the radius of the next bend, and the next bend is performed in the same way. After repeating several times, one tool can be used to bend a metal pipe into shapes of different radii, thereby improving the versatility of the device and reducing the investment cost of the enterprise.

[0024] Example 2: Figure 1 and Figure 4 As shown, the limiting mechanism 5 includes a threaded rod 51, a movable block 53 and a fixed block 54. The fixed block 54 is fixedly connected to a groove on one side of the vertical plate 3. A ridge 52 is provided in the groove of the vertical plate 3. The lower end of the movable block 53 is slidably engaged with the ridge 52. The threaded rod 51 is fixedly connected to the movable block 53. The threaded rod 51 is threadedly connected to the side column of the groove of the vertical plate 3.

[0025] The effect achieved by the entire embodiment is that, by horizontally clamping the metal pipe fitting in the corresponding groove of the fixed clamping block 54, rotating the threaded rod 51, the threaded rod 51 spirally rotates in the groove side column of the vertical plate 3, applying a thrust to the movable clamping block 53, so that the movable clamping block 53 slides closer to the movable clamping block 53 along the convex ridge 52, and under the action of the corresponding groove of the movable clamping block 53, the metal pipe fitting is clamped, thereby preventing the metal pipe fitting from shifting and improving the bending quality.

[0026] The method of use and working principle of this device: When using the bending device for metal pipes, select a mold according to the required bending radius, clamp the metal pipe horizontally in the corresponding groove of the fixed clamping block 54, rotate the threaded rod 51, and the threaded rod 51 spirally rotates in the side column of the groove of the vertical plate 3, applying a thrust to the movable clamping block 53, so that the movable clamping block 53 slides along the ridge 52 toward the movable clamping block 53, and under the action of the corresponding groove of the movable clamping block 53, the metal pipe is clamped. At this time, the metal pipe is clamped in one of the grooves of the first mold 41, the second mold 42 and the third mold 43. In the initial state, the connecting plate 62 is parallel to the vertical plate 3, and the position of the outer mold 64 is adjusted. The outer mold 64 is also fitted to the metal pipe, and the position of the outer mold 64 is fixed by the positioning rod 65. Then, the handle 7 is held and rotated clockwise. The power arm composed of the connecting plate 62, the T-shaped rod 61 and the handle 7 makes a circular motion with the central axis 44 as the center. At this time, the fixed outer mold 64 bends the metal pipe toward one of the first mold 41, the second mold 42 and the third mold 43, thereby completing a bend. After the limiting mechanism 5 and the bending mechanism 6 return to their initial positions, the next mold is selected according to the radius of the next bend, and the next bend is performed in the same way. In this way, one tool can be used to bend a metal pipe into shapes with different radii.

[0027] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any other form. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes for application in other fields. However, any simple modification, equivalent change and modification of the above embodiment made according to the technical essence of the present invention without departing from the content of the technical solution of the present invention shall still fall within the scope of protection of the technical solution of the present invention.

Claims

1. A bending device for metal pipes, comprising a base (1), a reinforcing rib (2), a vertical plate (3) and a handle (7), characterized in that: A limiting mechanism (5) is provided on one side of the vertical plate (3), and a bending die mechanism (4) is fixedly connected to the other side of the vertical plate (3). The outer side of the bending die mechanism (4) is rotatably connected to a bending mechanism (6). The bending die mechanism (4) includes a central shaft (44) and a third die (43), a second die (42) and a first die (41) fixedly installed on its outer annular surface in sequence. The bending mechanism (6) includes a T-shaped rod (61), a connecting plate (62), a positioning hole (63), an outer die (64), a positioning rod (65) and a sleeve. (66), the sleeve (66) is rotatably connected to the central shaft (44) through multiple sets of bearings, one set of the connecting plates (62) is fixedly connected to the upper side of the sleeve (66), and the other set of the connecting plates (62) is located above the first mold (41) and is rotatably connected to the central shaft (44), and the outer mold (64) is located in the middle position of the two sets of the connecting plates (62), and the outer mold (64) fits the metal pipe into the middle grooves of the first mold (41), the second mold (42) and the third mold (43).

2. A bending device for metal pipes according to claim 1, characterized in that: A positioning hole (63) is provided inside the connecting plate (62), and the positioning rod (65) passes through the positioning hole (63) and the inside of the outer mold (64).

3. A bending device for metal pipes according to claim 2, characterized in that: The two sets of connecting plates (62) are fixedly connected to one end of the T-shaped rod (61), and the handle (7) is fixedly connected to the other end of the T-shaped rod (61).

4. A bending device for metal pipes according to claim 3, characterized in that: The lower end of the central shaft (44) is fixedly connected to the middle portion of the upper side of the base (1), and the reinforcing rib (2) is supported between the vertical plate (3) and the base (1).

5. A bending device for metal pipes according to claim 4, characterized in that: The limiting mechanism (5) comprises a threaded rod (51), a movable clamping block (53) and a fixed clamping block (54); the fixed clamping block (54) is fixedly connected to a groove on one side of the vertical plate (3).

6. The bending device for metal pipes according to claim 5, characterized in that: A ridge (52) is provided in the groove of the vertical plate (3), and the lower end of the movable clamping block (53) is slidably engaged with the ridge (52).

7. A bending device for metal pipes according to claim 6, characterized in that: The threaded rod (51) is fixedly connected to the movable clamping block (53), and the threaded rod (51) is threadedly connected to the groove side column of the vertical plate (3).

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