One-time forming device for end part of pipe fitting

Abstract

The utility model provides a pipe fitting end portion one-time forming device which comprises a fixing plate and a transverse moving plate, the transverse moving plate can move horizontally in the Y-axis direction, the fixing plate is fixedly provided with a first template and a second template capable of sliding in the X-axis direction, and a first spring is arranged between the first template and the second template in a clamped mode. The transverse moving plate is fixedly provided with a third mold plate and a fourth mold plate capable of sliding in the X-axis direction, and a second spring is clamped between the third mold plate and the fourth mold plate; the first template, the second template, the third template and the fourth template are oppositely combined to form an extrusion convex die cavity; and the necking die set can move along the X axis and is provided with a necking die cavity allowing the pipe fitting to be inserted therein. The convex part of the pipe fitting is formed through the convex extrusion die cavity, and the necking part of the pipe fitting is formed through the necking die cavity, so that the production process is simplified, the number of equipment and the number of manual operation are reduced, the production cost of the pipe fitting is reduced, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile parts production, in particular to a one-time forming device for a pipe end. Background Art

[0002] As an automotive component, tubing undergoes a complex series of machining processes to achieve the desired contours. This series of steps involves extruding the middle section of the tubing to create a raised portion, which not only enhances its structural strength but also meets specific assembly requirements. Next, a specific extrusion process forms a necked portion at one end, ensuring a tight connection between the tubing and other components. The other end of the tubing is bent to accommodate complex assembly environments or spatial layouts.

[0003] Current production practices typically require the design and configuration of three separate devices to achieve these processing goals: a forming device specifically for forming the bulge in the middle of the pipe, a forming device for creating the neck at one end, and a bending device for bending the other end. While each of these devices is technologically mature and effectively performs its specific tasks, their separate existence and sequential use undoubtedly increase the complexity and cost burden of the production line.

[0004] More specifically, this production method not only requires high investment to purchase and maintain these devices, but also significantly increases labor costs because each processing step requires independent equipment and operators. In addition, the connection and transfer between multiple processes also increases time costs, affecting overall production efficiency. Utility Model Content

[0005] In view of the deficiencies in the prior art, the purpose of the present invention is to provide a one-time forming device for pipe ends to solve the problems mentioned in the above background technology section.

[0006] The utility model is achieved through the following technical solutions:

[0007] A disposable forming device for the end of a pipe fitting comprises a fixed plate and a transverse plate, the transverse plate being translatable along the Y-axis direction; the fixed plate being fixedly provided with a first template and a second template being slidable along the X-axis direction, a first spring being sandwiched between the first template and the second template; the transverse plate being fixedly provided with a third template and a fourth template being slidable along the X-axis direction, a second spring being sandwiched between the third template and the fourth template; the first template to the fourth template being aligned with each other to form an extrusion die cavity; and further comprising a necking die group being movable along the X-axis, the necking die group being provided with a necking die cavity for inserting the pipe fitting.

[0008] Furthermore, the necking module includes a first connecting block, one end of the first connecting block is connected to a first telescopic mechanism, the other end of the first connecting block is provided with a second connecting block, the other end of the second connecting block is provided with a mounting groove, a first insert is provided in the mounting groove, a second insert is provided in the first insert, and the gap between the first insert and the second insert constitutes the necking mold cavity.

[0009] Furthermore, the necking module also includes a bolt and a set screw, the bolt passes through the first connecting block and the second connecting block and is connected to the second insert; the set screw passes through the second connecting block and is held on the pressing slope of the first insert.

[0010] Furthermore, it also includes a base, which includes a first mounting block and a second mounting block arranged at intervals, and a bottom plate connecting the first mounting plate and the second mounting plate, the second mounting plate is movably connected to the bottom plate along the Y-axis, the bottom plate is fixed with a second telescopic mechanism for driving the second mounting plate to move, the first mounting block is provided with a first guide portion that cooperates with the first template and the second template, and the second mounting block is provided with a second guide portion that cooperates with the third template and the fourth template.

[0011] Furthermore, a limiting plate is fixed on the bottom plate, one end of the tube is embedded in the necking cavity, and the other end of the tube abuts against the limiting plate.

[0012] Furthermore, the Rockwell hardness of the first template, the second template, the third template, the fourth template, the first insert and the second insert are all greater than or equal to 55.

[0013] The beneficial effects of the present invention are as follows: a disposable forming device for the end of a pipe fitting comprises a fixed plate and a transverse plate, the transverse plate being capable of translational movement along the Y-axis direction, the fixed plate being fixed with a first template and a second template being slidable along the X-axis direction, a first spring being sandwiched between the first template and the second template; the transverse plate being fixed with a third template and a fourth template being slidable along the X-axis direction, a second spring being sandwiched between the third template and the fourth template; the first template to the fourth template being aligned with each other to form an extrusion die cavity; and further comprising a necking die group being movable along the X-axis, the necking die group being provided with a necking die cavity for inserting the pipe fitting. The convex portion of the pipe fitting is formed by the extrusion die cavity, and the necking portion of the pipe fitting is formed by the necking die cavity, thereby simplifying the production process, reducing the number of equipment and the number of manual operations, reducing the production cost of the pipe fitting, and improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional diagram of the present utility model.

[0015] Figure 2 This is a cross-sectional view of the utility model along the surface of the first template.

[0016] Figure 3 for Figure 2 Schematic diagram of the utility model after the pipe fitting is assembled.

[0017] Figure 4 This is an exploded view of the necking module of the present invention.

[0018] Figure 5 It is a cross-sectional view of a straight pipe after being processed by the one-time forming device of the utility model.

[0019] Figure 6 Final outline drawing of the pipe fitting.

[0020] The above drawings include the following reference numerals:

[0021] 1. Fixed plate; 11. First template; 12. Second template; 13. First spring; 2. Transverse plate; 21. Third template; 22. Fourth template; 23. Second telescopic mechanism; 3. Extrusion die cavity; 4. Narrowing die set; 41. First connecting block; 42. First telescopic mechanism; 43. Second connecting block; 431. Mounting groove; 44. First insert; 441. Pressing slope; 45. Second insert; 46. Narrowing die cavity; 47. Set screw; 48. Bolt; 5. Base; 51. First mounting block; 52. Second mounting block; 53. Bottom plate; 54. Limiting plate; a. Pipe fitting; a1. Narrowing portion; a2. Raised portion. DETAILED DESCRIPTION

[0022] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. It should be noted that the description of these embodiments is used to help understand the present invention, but does not constitute a limitation of the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0023] Reference Figure 6 As shown, this pipe fitting a needs to go through a series of complex processing processes before it can be shaped into an outline that meets the design requirements. Figure 5 As shown, a one-time forming device for a pipe end of the present invention processes a straight pipe to form a necking portion a1 and a convex portion a2 of the pipe a.

[0024] In order to form the necking part a1 and the convex part a2 of the pipe a at one time, refer to Figures 1 to 4As shown, the utility model provides a disposable forming device for the end of a pipe fitting, including a fixed plate 1 and a transverse plate 2, the transverse plate 2 can be translated along the Y-axis direction, the fixed plate 1 is fixed with a first template 11, and a second template 12 that can slide along the X-axis direction, a first spring 13 is clamped between the first template 11 and the second template 12; the transverse plate 2 is fixed with a third template 21, and a fourth template 22 that can slide along the X-axis direction, a second spring is clamped between the third template 21 and the fourth template 22; the first template 11 to the fourth template 22 are matched with each other to form an extrusion die cavity 3; it also includes a necking module 4 that can move along the X-axis, and the necking module 4 is provided with a necking die cavity 46 for inserting the pipe fitting a.

[0025] During use, the pipe a is placed between the first template 11 and the third template. The transverse plate 2 then pushes the third template 21 against the first template 11, and the second template 12 against the fourth template 22, while clamping the pipe a. The second template 12 and the fourth template 22 of the necking module 4 are then used to insert one end of the pipe a into the necking die cavity 46, thereby forming a necking portion a1. Furthermore, the necking module 4 pushes the second template 12 and the fourth template 22, compressing the first spring 13 and the second spring. When the second template 12 and the fourth template 22 respectively abut against the first template 11 and the third template 21, the pressure of the necking module 4 causes the middle portion of the pipe a to deform and embed into the extrusion die cavity 3, forming a raised portion a2. The above structure simplifies the production process, reduces the amount of equipment and manual operations, reduces the production cost of the pipe a, and improves production efficiency.

[0026] Specifically, the necking die 4 includes a first connecting block 41, one end of which is connected to a first telescopic mechanism 42, the other end of which is provided with a second connecting block 43, the other end of which is provided with a mounting groove 431, a first insert 44 being provided in the mounting groove 431, a second insert 45 being provided in the first insert 44, and a gap between the first insert 44 and the second insert 45 forming a necking die cavity 46. The first telescopic mechanism 42 may be a pneumatic cylinder, an oil cylinder, or the like.

[0027] The necking module 4 further includes a bolt 48 and a set screw 47. The bolt 48 passes through the first connecting block 41 and the second connecting block 43 and is connected to the second insert 45. The set screw 47 passes through the second connecting block 43 and is held against the pressing slope 441 of the first insert 44. The above structure realizes the assembly of the necking module 4.

[0028] The base 5 further includes a first mounting block 51 and a second mounting block 52 arranged at intervals, and a bottom plate 53 connecting the first mounting plate and the second mounting plate. The second mounting plate is movably connected to the bottom plate 53 along the Y axis. The bottom plate 53 is fixed with a second telescopic mechanism 23 for driving the second mounting plate to move. The first mounting block 51 is provided with a first guide portion that matches the first template 11 and the second template 12, and the second mounting block 52 is provided with a second guide portion that matches the third template 21 and the fourth template 22. Figure 1 As shown, the first mounting block 51 is provided with grooves for embedding the first template 11 and the second template 12, and the second mounting block 52 is provided with grooves for embedding the third template 21 and the fourth template 22, wherein the second telescopic mechanism 23 can be a cylinder, an oil cylinder, etc.

[0029] A limiting plate 54 is fixed on the bottom plate 53 , one end of the pipe a is embedded in the shrinking cavity 46 , and the other end of the pipe a abuts against the limiting plate 54 , so that the pipe a remains stable during the compression process.

[0030] The first template 11, the second template 12, the third template 21, the fourth template 22, the first insert 44 and the second insert 45 are heat-treated to have a Rockwell hardness greater than or equal to 55. This ensures that the disposable molding device of the present invention has a sufficient service life.

[0031] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation to the present invention.

[0032] In the description of this utility model, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features indicated. Therefore, the terms "first" and "second" may explicitly or implicitly include one or more of the features.

[0033] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A one-time forming device for pipe ends, characterized by: The invention comprises a fixed plate (1) and a transverse plate (2), wherein the transverse plate (2) can be translated along the Y-axis direction, the fixed plate (1) is fixedly provided with a first template (11), and a second template (12) that can slide along the X-axis direction, and a first spring (13) is sandwiched between the first template (11) and the second template (12); the transverse plate (2) is fixedly provided with a third template (21), and a fourth template (22) that can slide along the X-axis direction, and a second spring is sandwiched between the third template (21) and the fourth template (22); the first template (11) to the fourth template (22) are mutually matched to form an extrusion die cavity (3); It also includes a necking die set (4) movable along the X-axis, wherein the necking die set (4) is provided with a necking die cavity (46) for inserting the pipe (a).

2. A one-time forming device for pipe ends according to claim 1, characterized in that: The necking die assembly (4) comprises a first connecting block (41), one end of the first connecting block (41) is connected to a first telescopic mechanism (42), the other end of the first connecting block (41) is provided with a second connecting block (43), the other end of the second connecting block (43) is provided with a mounting groove (431), a first insert (44) is provided in the mounting groove (431), a second insert (45) is provided in the first insert (44), and a gap between the first insert (44) and the second insert (45) constitutes the necking die cavity (46).

3. The one-time forming device for pipe ends according to claim 2, characterized in that: The shrinking module (4) further includes a bolt (48) and a set screw (47), wherein the bolt (48) passes through the first connecting block (41) and the second connecting block (43) and is connected to the second insert (45); and the set screw (47) passes through the second connecting block (43) and is supported on the pressing inclined surface (441) of the first insert (44).

4. A one-time forming device for a pipe end according to any one of claims 1 to 3, characterized in that: The invention also includes a base (5), wherein the base (5) includes a first mounting block (51) and a second mounting block (52) arranged at intervals, and a bottom plate (53) connecting the first mounting plate and the second mounting plate, wherein the second mounting plate is movably connected to the bottom plate (53) along the Y axis, and the bottom plate (53) is fixed with a second telescopic mechanism (23) for driving the second mounting plate to move, the first mounting block (51) is provided with a first guide portion for cooperating with the first template (11) and the second template (12), and the second mounting block (52) is provided with a second guide portion for cooperating with the third template (21) and the fourth template (22).

5. The one-time forming device for pipe ends according to claim 4, characterized in that: A limiting plate (54) is fixedly provided on the bottom plate (53), one end of the pipe (a) is embedded in the shrinking mold cavity (46), and the other end of the pipe (a) abuts against the limiting plate (54).

6. The one-time forming device for pipe ends according to claim 2, characterized in that: The Rockwell hardness of the first template (11), the second template (12), the third template (21), the fourth template (22), the first insert (44) and the second insert (45) is greater than or equal to 55.

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