Bent pipe forming tool

Abstract

The utility model discloses a bent pipe forming tool which comprises a base, a pressed assembly, a pressure assembly and a main oil cylinder, the pressed assembly is connected with the base, the pressure assembly is connected with the main oil cylinder, and the main oil cylinder is connected to the side, away from the pressed assembly, of the pressure assembly; a pipe is placed on the pressed assembly, the extrusion forming process of the pipe is completed through mutual cooperation of the main oil cylinder and the pressure assembly, and due to the utilization of the pressed base and the arc-shaped pressing block which are made of bakelite, replacement is easy and convenient, and meanwhile the replacement cost is low; and the upper cylinder seat and the lower cylinder seat are matched with the upper pressure rod and the lower pressure rod respectively, so that the pressed shape of the pipe can be changed directly by adopting the upper pressure rod and the lower pressure rod with different lengths, and the forming radian of the pipe can be changed more quickly.

Description

Technical Field

[0001] The utility model relates to the technical field of tooling equipment, in particular to a pipe bending forming tooling. Background Art

[0002] In industrial production, it is often necessary to bend pipes to meet different design requirements and installation conditions. For example, in the production process of refrigerators, the flat tube evaporator or the handles of some models of refrigerators have a certain curvature. In the prior art, the production is mainly carried out by directly applying external force to the straight tube to make it bend. This method has the following problems: when producing different batches of workpieces, when the curvature requirements are different, it is impossible to directly process them with existing tools;

[0003] In view of this, there is an urgent need for a pipe bending forming tool that can solve the above problems. Utility Model Content

[0004] The purpose of the utility model is to provide a pipe bending forming tool which can solve the above problems.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solution: a pipe bending forming tool, comprising:

[0006] A base, a pressure component, a pressure component and a main oil cylinder. The pressure component is connected to the base, the pressure component is connected to the main oil cylinder, and the main oil cylinder is connected to the side of the pressure component away from the pressure component.

[0007] Preferably, the pressure-bearing assembly comprises a pressure-bearing seat 1 and at least two sets of positioning plates, the pressure-bearing seat 1 is provided with at least one arc-shaped pressure groove, and the at least two sets of positioning plates are respectively fixedly connected to the two ends of the arc-shaped pressure groove;

[0008] The pressure assembly comprises an arc-shaped pressing block, one end of the arc-shaped pressing block close to the arc-shaped pressing groove is provided with an arc-shaped protrusion matching the arc-shaped pressing groove, and the other end of the arc-shaped pressing block away from the arc-shaped pressing groove is detachably connected to the main oil cylinder.

[0009] Preferably, the pressure seat 1 and the arc-shaped pressure block are made of bakelite.

[0010] Preferably, the pressure assembly includes a strip plate, multiple upper cylinder seats, multiple pressure plates and multiple upper pressure rods, the strip plate is fixedly connected to the main oil cylinder, the multiple upper cylinder seats are fixedly connected to the strip plate, one end of the multiple upper pressure rods are respectively detachably connected to the multiple cylinder seats, and the other end is respectively hinged to the multiple upper pressure rods, and two adjacent pressure plates are hinged.

[0011] Preferably, the pressure component includes a second pressure seat, multiple lower cylinder seats, multiple pressure plates and multiple lower pressure rods. The second pressure seat is fixedly connected to the base, and a hollow mounting groove is provided on the side away from the base. The multiple lower cylinder seats are fixedly connected in the hollow mounting groove. One end of the multiple lower pressure rods is detachably connected to the multiple lower cylinder seats, and the other end is hinged to the multiple lower pressure plates, and two adjacent pressure plates are hinged.

[0012] Preferably, the upper pressure rod and the lower pressure rod are provided with a plurality of specifications of different lengths, and the lengths of the upper pressure rod and the lower pressure rod located on different vertical axes are equal.

[0013] Preferably, the pressure component and the pressure-bearing component are respectively provided with a medium plate.

[0014] Preferably, the dielectric plate is made of metal material.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] The pipe is placed on the pressure component, and the main oil cylinder and the pressure component cooperate with each other to complete the extrusion molding process of the pipe. The use of the pressure seat and arc-shaped pressure block made of bakelite is not only simple and convenient to replace, but also has a low replacement cost;

[0017] The upper cylinder seat and the lower cylinder seat are respectively equipped with the upper pressure rod and the lower pressure rod, so the compressed shape of the pipe can be changed directly by adopting the upper pressure rod and the lower pressure rod of different lengths, thereby changing the forming curvature of the pipe more quickly. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the overall structure of a pipe bending and forming tool in the first embodiment of the utility model;

[0019] Figure 2 This is a schematic diagram of the overall structure of a pipe bending and forming tool in the second embodiment of the utility model;

[0020] Figure 3 This is a schematic diagram of the dispersed structure of the pressure-bearing component in the second embodiment of the present utility model;

[0021] Figure 4 This is a schematic diagram of the connection structure of the pressure-bearing plate in the second embodiment of the utility model.

[0022] In the figure: 1. base; 2. pressure component; 20. pressure seat 1; 201. arc pressure groove; 21. positioning plate; 22. pressure seat 2; 220. hollow mounting groove; 23. lower cylinder seat; 24. pressure plate; 25. lower pressure rod; 3. pressure component; 30. arc pressure block; 300. arc protrusion; 32. strip plate; 33. upper cylinder seat; 34. pressure plate; 35. upper pressure rod; 4. main oil cylinder; 5. medium plate. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0024] Embodiment 1

[0025] Please see attached Figure 1 , a tube bending tool, comprising:

[0026] A base 1, a pressure component 2, a pressure component 3 and a master cylinder 4, wherein the pressure component 2 is connected to the base 1, the pressure component 3 is connected to the master cylinder 4, and the master cylinder 4 is connected to the side of the pressure component 3 away from the pressure component 2;

[0027] The straight pipe is placed on the pressure component 2, and the pressure component 3 is driven by the main cylinder 4 to contact the straight pipe. The straight pipe is squeezed by the pressure component 3 and the pressure component 2, and the bending process is completed together.

[0028] Specifically, the pressure-bearing assembly 2 includes a pressure-bearing seat 20 and at least two groups of positioning plates 21. The pressure-bearing seat 20 is provided with at least one arc-shaped pressure groove 201. At least two groups of positioning plates 21 are respectively fixedly connected to the two ends of the arc-shaped pressure groove 201.

[0029] The pressure assembly 3 includes an arc-shaped pressing block 30, and an arc-shaped protrusion 300 matching the arc-shaped pressing groove 201 is provided at one end of the arc-shaped pressing block 30 close to the arc-shaped pressing groove 201, and an end of the arc-shaped pressing block 30 away from the arc-shaped pressing groove 201 is detachably connected to the master cylinder 4;

[0030] The pressure-bearing component 2 is provided with a pressure seat 20, and a straight tube can be placed therein through the arc-shaped pressure groove 201. At the same time, in order to avoid the displacement of the tube during the extrusion process, the positioning plate 21 is used to limit the lateral movement of the straight tube. Then, the straight tube is extruded by the arc-shaped pressure block 30 matching the arc-shaped pressure groove 201. Under the joint force of the arc-shaped pressure groove 201 and the arc-shaped protrusion 300, the straight tube is formed into a curved tube with the same curvature as the arc-shaped pressure groove 201 and the arc-shaped protrusion 300.

[0031] Specifically, the pressure seat 20 and the arc-shaped pressing block 30 are made of bakelite; considering the different requirements for extrusion curvature of straight pipes in different batches, the pressure seat 20 and the arc-shaped pressing block 30 are made of bakelite, which fully utilizes the advantages of bakelite's low cost and easy installation.

[0032] Embodiment 2

[0033] Please see attached Figure 2-4

[0034] The pressure assembly 3 includes a strip plate 32, a plurality of upper cylinder seats 33, a plurality of pressure plates 34 and a plurality of upper pressure rods 35. The strip plate 32 is fixedly connected to the main oil cylinder 4. The plurality of upper cylinder seats 33 are fixedly connected to the strip plate 32. One end of the plurality of upper pressure rods 35 is detachably connected to the plurality of cylinder seats 33, and the other end is hinged to the plurality of upper pressure rods 35, and two adjacent pressure plates 34 are hinged.

[0035] A plurality of sets of upper cylinder seats 33 are indirectly connected to the main oil cylinder 4 through the strip plates 32, and then the upper pressure rods 35 of different lengths are respectively connected to the upper cylinder seats 33, so that the overall shape of the pressure plate 34 hinged on the upper pressure rod 35 is close to an arc shape. In order to prevent the pressure plates 34 at the front end of the upper pressure rod 35 from interfering with each other, the pressure plates 34 are hinged to the upper pressure rod 35, and adjacent pressure plates 34 are also hinged to each other.

[0036] Specifically, the pressure component 2 includes a pressure seat 22, multiple lower cylinder seats 23, multiple pressure plates 24 and multiple lower pressure rods 25. The pressure seat 22 is fixedly connected to the base 1, and a hollow mounting groove 220 is provided on the side away from the base 1. Multiple lower cylinder seats 23 are fixedly connected in the hollow mounting groove 220. One end of the multiple lower pressure rods 25 are respectively detachably connected to the multiple lower cylinder seats 23, and the other end is respectively hinged to the multiple lower pressure plates 24, and two adjacent pressure plates 24 are hinged; the hollow mounting groove 220 provided on the pressure seat 22 can limit the hollow tube located therein so that it will not be displaced during the bending process, and the multiple lower pressure rods 25 and the pressure plates 24 provided thereon cooperate with the pressure component 3 to jointly change the bending method of the traditional customized mold.

[0037] Specifically, the upper pressure rod 35 and the lower pressure rod 25 are provided with a plurality of specifications of different lengths, and the upper pressure rod 35 and the lower pressure rod 25 located on different vertical axes are of equal length; by adopting upper pressure rods 35 and lower pressure rods 25 of different lengths, the purpose of controlling the contact surface shape of the pressure plate 34 and the pressure plate 24 with the straight pipe can be achieved, and the upper pressure rod 35 and the lower pressure rod 25 on the same axis can be regarded as a group, and the setting of equal length of the upper pressure rod 35 and the lower pressure rod 25 on different vertical axes can more quickly achieve the purpose of adjusting the contact surface shape of the straight pipe. For example, after determining the installation order of different upper pressure rods 35 according to the curvature, the lower pressure rod 25 regarded as the same group can be directly installed. In this case, the curvature formed by multiple lower pressure rods 25 must match the curvature formed by the upper pressure rod 35.

[0038] Specifically, the pressure component 3 and the pressure component 2 are respectively provided with a medium plate 5; considering that the shape formed by the use of multiple groups of upper cylinder seats 33 and multiple groups of lower cylinder seats 23 is close to an arc, but is not actually an arc, if it is directly in contact with the straight tube and extruded, the finished product will also have the problem of insufficient arc, so the pressure component 3 and the pressure component 2 are respectively provided with a medium plate 5 for arc correction. When in use, the straight tube is placed between the two medium plates 5 and then placed as a whole in the hollow installation groove 220;

[0039] Considering that at least one medium plate 5 needs to be taken out each time a straight tube is placed, in order to further simplify the process, the medium plate 5 located at the upper end of the straight tube can be directly fixedly connected to multiple pressure plates 34. There are many fixing methods, such as pasting, magnetic adsorption or fixing by bolts. Different methods also have different advantages and disadvantages, which can be selected according to actual conditions, so they will not be elaborated.

[0040] Specifically, the dielectric plate 5 is made of metal material; the dielectric plate 5 is formed by deforming itself and then contacting with the straight tube to form extrusion to achieve the purpose of curvature correction, so it needs to have a certain hardness and a certain toughness. Considering all factors, metal material is more suitable.

[0041] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A pipe bending tool, characterized in that: include: A base (1), a pressure component (2), a pressure component (3) and a master cylinder (4), wherein the pressure component (2) is connected to the base (1), the pressure component (3) is connected to the master cylinder (4), and the master cylinder (4) is connected to a side of the pressure component (3) away from the pressure component (2).

2. A tube bending tool according to claim 1, characterized in that: The pressure-bearing assembly (2) comprises a pressure-bearing seat (20) and at least two groups of positioning plates (21), the pressure-bearing seat (20) being provided with at least one arc-shaped pressure groove (201), and at least two groups of positioning plates (21) being fixedly connected to two ends of the arc-shaped pressure groove (201) respectively; The pressure assembly (3) comprises an arc-shaped pressure block (30), wherein an arc-shaped protrusion (300) matching the arc-shaped pressure groove (201) is provided at one end of the arc-shaped pressure block (30) close to the arc-shaped pressure groove (201), and an end of the arc-shaped pressure block (30) away from the arc-shaped pressure groove (201) is detachably connected to the master oil cylinder (4).

3. The pipe bending tool according to claim 2, characterized in that: The pressure seat 1 (20) and the arc-shaped pressure block (30) are made of bakelite.

4. The pipe bending tool according to claim 1, characterized in that: The pressure assembly (3) comprises a strip plate (32), a plurality of upper cylinder seats (33), a plurality of pressure plates (34) and a plurality of upper pressure rods (35); the strip plate (32) is fixedly connected to the main oil cylinder (4); the plurality of upper cylinder seats (33) are fixedly connected to the strip plate (32); one end of the plurality of upper pressure rods (35) is detachably connected to the plurality of cylinder seats (33); the other end is hinged to the plurality of upper pressure rods (35), and two adjacent pressure plates (34) are hinged.

5. The pipe bending tool according to claim 4, characterized in that: The pressure-bearing assembly (2) comprises a second pressure-bearing seat (22), a plurality of lower cylinder seats (23), a plurality of pressure plates (24) and a plurality of lower pressure rods (25). The second pressure-bearing seat (22) is fixedly connected to the base (1), and a hollow mounting groove (220) is provided on a side thereof away from the base (1). The plurality of lower cylinder seats (23) are fixedly connected in the hollow mounting groove (220). One end of the plurality of lower pressure rods (25) is detachably connected to the plurality of lower cylinder seats (23), and the other end is hinged to the plurality of pressure plates (24), and two adjacent pressure plates (24) are hinged.

6. The tube bending tool according to claim 5, characterized in that: The upper pressure rod (35) and the lower pressure rod (25) are provided with a plurality of specifications of different lengths, and the upper pressure rod (35) and the lower pressure rod (25) located on different vertical axes have the same length.

7. The tube bending tool according to claim 4, characterized in that: The pressure component (3) and the pressure-bearing component (2) are respectively provided with a medium plate (5).

8. The pipe bending tool according to claim 7, characterized in that: The dielectric plate (5) is made of metal material.

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