Overall bending forming die for cooling pipe

Abstract

The utility model discloses an integral bending forming die for a cooling pipe, relates to the technical field of pipe bending, and aims to solve the problem that a bending die which can simultaneously meet various bending directions and bending requirements and can be matched with different devices is lacked in the prior art. According to the technical scheme, the overall bending forming die for the cooling pipe is characterized by comprising a die body, the die body is a cylinder, one end of the die body is a clamping end, the die body is provided with a center hole used for forming a center straight pipe section, and the die body is provided with an embedding groove at the opening end of the center hole; the embedding groove is detachably connected with an embedding block used for forming an extension transition section, and the outer circumferential face of the mold body is used for guiding bending to form an outer spiral section. The integral bending forming die for the cooling pipe meets various bending directions and bending requirements, can be matched with different devices for bending, and has the capacity of bending and producing the integral cooling pipe.

Description

Technical Field

[0001] The utility model relates to the technical field of tube bending, and more specifically, to an integral bending and forming die for a cooling tube. Background Art

[0002] like Figure 1 The figure shows a mechanical cooling pipe for mining, which includes a central straight pipe section 91, an extended transition section 92 and an outer spiral section 93.

[0003] The cooling pipe has a high integrity requirement due to its high oil and high pollution use environment, especially in large excavators or mining machines that need to work underground, that is, it cannot be reassembled by welding.

[0004] However, the bending directions and requirements of the outer transition section 92 and the outer spiral section 93 are completely different, and the equipment required is also completely different. The prior art generally adopts the method of bending the two sections separately and then assembling them by welding. Due to the existence of the weld, it is not suitable for mining machinery cooling pipes with high integrity requirements.

[0005] Therefore, the prior art lacks a bending mold that can simultaneously meet multiple bending directions and bending requirements and can cooperate with different equipment; therefore, a new solution needs to be proposed to solve this problem. Utility Model Content

[0006] In view of the shortcomings of the prior art, the purpose of the utility model is to provide a cooling pipe integral bending forming mold that meets a variety of bending directions and bending requirements, can be bent in conjunction with different equipment, and has the ability to bend and produce integral cooling pipes.

[0007] The above technical purpose of the utility model is achieved through the following technical solutions: a cooling tube integral bending forming mold, including a mold body, the mold body is a cylinder, one end of which is a clamping end, the mold body is provided with a center hole for forming a central straight pipe section, the mold body is provided with an embedding groove at the opening end of the center hole, the embedding groove is detachably connected with an embedding block for forming an extended transition section, and the outer circumferential surface of the mold body is used to guide the bending to form an outer spiral section.

[0008] By adopting the above-mentioned technical scheme, when using the present application to perform overall bending and forming of the cooling pipe, the copper pipe fitting is first guided to be inserted into the center hole; after the worker preliminarily bends the copper pipe fitting, the clamping end of the mold body is fixed to the press, and after the insert is aligned with the embedding groove, the insert is pressed by the press until the insert moves down to the bottom of the embedding groove, thereby completing the partial forming of the central straight pipe section and the extended transition section; after the worker transfers the present application to the pipe bending machine, the pipe bending machine forces the pipe fitting to bend along the trajectory of the insert, thereby completing the forming of the entire extended transition section; finally, the worker transfers the present application to the lathe, and bends the pipe fitting in the manner of a bending spring, thereby forcing the pipe fitting to bend spirally around the outer circumference of the mold body, thereby completing the forming of the outer spiral section; in summary, the present application meets a variety of bending directions and bending requirements, and can be bent in conjunction with different equipment, and has the ability to bend and produce integral cooling pipes.

[0009] The utility model is further configured as follows: an inclined guide surface is provided on one side of the embedding groove bottom, the inclined guide surface is provided with an inclined guide groove for embedding the pipe fitting, and the embedding block is provided with an inclined pressing surface which fits with the inclined guide surface and presses the pipe fitting into the inclined guide groove.

[0010] The utility model is further configured as follows: a rear arc transition surface is arranged on the other side of the embedding groove bottom, the embedding block is arranged on the front arc transition surface, and the two ends of the front arc transition surface are respectively connected with the oblique pressure surface and the rear arc transition surface.

[0011] The utility model is further configured as follows: a locking hole is arranged through the mold body and the insert block, and the locking hole is provided with a locking pin.

[0012] The utility model is further configured as follows: the embedding groove is detachably connected with a pressing block, the pressing block is provided with a transition pressing groove, and the transition pressing groove cooperates with the rear arc transition surface and the front arc transition surface to press the pipe fitting.

[0013] The utility model is further configured as follows: the mold body thread is matched with a locking nut, and the locking nut is used to press the pressing block.

[0014] The utility model is further configured as follows: the groove wall of the embedding groove is provided with a positioning straight groove, and the embedding block and the pressing block are provided with positioning convex strips which are slidably matched with the positioning straight groove.

[0015] The utility model is further configured as follows: the inner wall of the central hole is provided with a positioning step for positioning the insertion depth.

[0016] In summary, the utility model has the following beneficial effects: the application meets a variety of bending directions and bending requirements, and can be bent in conjunction with different equipment, and has the ability to bend and produce integral cooling pipes; only pressure needs to be applied to the insert, and the inclined pressure surface and the inclined guide groove can be used to force the pipe to deform and form an inclined extension section; only thrust needs to be applied to the area to be bent of the pipe, and it can be forced to bend along the rear arc transition surface and the front arc transition surface to form an arc transition section; the sliding activity of the insert is limited, thereby preventing the insert from sliding abnormally; the extended transition section is limited by the pressure block, and error bending is effectively prevented; the insert and the pressure block are ensured to slide along the central axis of the mold body through the cooperation of the positioning convex strip and the positioning straight groove, and the installation position of the two is effectively ensured; the end of the pipe is abutted by the positioning step, thereby ensuring the depth of the pipe inserted into the center hole. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The integral cooling pipe required to be produced in the background technology;

[0018] Figure 2 This is a schematic diagram of the overall structure of this application;

[0019] Figure 3 This is a schematic diagram of the structure of the cooling tube processed in this application. For the convenience of representation, the figure is half-cut;

[0020] Figure 4 This is an exploded view of this application.

[0021] Description of the drawings: 1. Mold body; 2. Clamping end; 3. Center hole; 4. Embedded groove; 5. Embedded block; 6. Inclined guide surface; 7. Inclined guide groove; 8. Inclined pressure surface; 9. Rear arc transition surface; 10. Front arc transition surface; 11. Locking hole; 12. Locking pin; 13. Pressure block; 14. Transition pressure groove; 15. Locking nut; 16. Positioning straight groove; 17. Positioning convex strip; 18. Positioning step; 91. Center straight tube section; 92. Outer extension transition section; 93. Outer spiral section; 94. Oblique extension section; 95. Arc transition section. DETAILED DESCRIPTION

[0022] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0023] A cooling pipe integral bending forming die, such as Figure 2 , Figure 3 As shown, it includes a mold body 1, which is a cylinder, one end of which is a clamping end 2. The mold body 1 is provided with a center hole 3 for forming a center straight pipe section 91. The mold body 1 is machined with an embedding groove 4 at the open end of the center hole 3. The embedding groove 4 is detachably connected with an embedding block 5 for forming an extended transition section 92. The outer circumferential surface of the mold body 1 is used to guide bending to form an outer spiral section 93.

[0024] When using the present application to perform integral bending and forming of the cooling pipe, first guide the copper pipe fitting to be inserted into the center hole 3; after the worker preliminarily bends the copper pipe fitting, fix the clamping end 2 of the mold body 1 on the press, align the insert 5 with the embedding groove 4, and then use the press to press the insert 5 until the insert 5 moves down to the bottom of the embedding groove 4, thereby completing the partial forming of the central straight pipe section 91 and the extended transition section 92; after the worker transfers the present application to the pipe bending machine, the pipe bending machine forces the pipe fitting to bend along the trajectory of the insert 5, thereby completing the forming of the entire extended transition section 92; finally, the worker transfers the present application to the lathe, bends the pipe fitting in the manner of a bending spring, thereby forcing the pipe fitting to bend spirally around the outer circumference of the mold body 1, thereby completing the forming of the outer spiral section 93; in summary, the present application meets a variety of bending directions and bending requirements, and can be bent in conjunction with different equipment, and has the ability to bend and produce integral cooling pipes.

[0025] The extended transition section 92 of the integral cooling pipe includes an oblique extension section 94 extending outward from the center and an arc transition section 95 transitioning from a straight line to a spiral. The oblique extension section 94 is formed by applying pressure to the insert 5. The specific principle structure is as follows: Figure 3 , Figure 4 As shown, one side of the bottom of the embedding groove 4 is machined with an inclined guide surface 6, and the inclined guide surface 6 is machined with an inclined guide groove 7 for the pipe fitting to be embedded. The embedding block 5 is machined with an inclined pressure surface 8 that fits with the inclined guide surface 6 and presses the pipe fitting into the inclined guide groove 7, so that only pressure needs to be applied to the embedding block 5, and the pipe fitting can be forced to deform to form an inclined extension section 94 through the cooperation of the inclined pressure surface 8 and the inclined guide groove 7.

[0026] The specific principle structure of the arc transition section 95 is as follows: Figure 3 , Figure 4 As shown, a rear arc transition surface 9 is formed on the other side of the bottom of the embedding groove 4, and a front arc transition surface 10 is formed on the upper end surface of the embedding block 5. The two ends of the front arc transition surface 10 are respectively connected with the inclined pressure surface 8 and the rear arc transition surface 9, so that only a thrust is applied to the area to be bent of the pipe fitting to force it to bend along the rear arc transition surface 9 and the front arc transition surface 10 to form an arc transition section 95.

[0027] In order to prevent the block 5 from sliding abnormally during the process of bending to form the arc transition section 95, thereby causing the oblique extension section 94 to bend in error, as shown in FIG. Figure 3 , Figure 4 As shown, a locking hole 11 is drilled through the mold body 1 and the insert 5, and a locking pin 12 is interference-fitted or threadedly fixed to the locking hole 11; before bending the arc transition section 95, the locking pin 12 is first inserted into the locking hole 11, thereby limiting the sliding activity of the insert 5 and preventing the insert 5 from sliding abnormally.

[0028] In order to prevent the outer transition section 92 from bending due to force transmission when the outer spiral section 93 is twisted, Figure 3 , Figure 4 As shown, the embedded groove 4 is detachably connected to a pressing block 13, and the pressing block 13 is provided with a transition pressing groove 14. The transition pressing groove 14 cooperates with the rear arc transition surface 9 and the front arc transition surface 10 to press the pipe fitting, so that the extended transition section 92 is restricted by the pressing block 13, effectively preventing it from error bending.

[0029] The pressing block 13 is detachably mounted in the embedding groove 4 by the following structure: Figure 3 , Figure 4 As shown, the mold body 1 is threadedly equipped with a locking nut 15, which is used to tighten the pressure block 13; when the pressure block 13 is embedded in the embedding groove 4, the locking nut 15 can be tightened to complete the fixed installation of the pressure block 13, and the pressure block can be taken out normally when the locking nut 15 is screwed out, which has the technical effect of convenient disassembly and assembly of the pressure block 13.

[0030] To locate the installation position of the insert 5 and the pressure block 13, as Figure 4 As shown, the groove wall of the embedding groove 4 is processed to form a positioning straight groove 16, and the embedding block 5 and the pressing block 13 are processed to form a positioning convex strip 17 that slidably cooperates with the positioning straight groove 16, so that the embedding block 5 and the pressing block 13 are ensured to slide along the central axis of the mold body 1 through the cooperation of the positioning convex strip 17 and the positioning straight groove 16, thereby effectively ensuring the installation position of the two.

[0031] To limit the depth of the pipe inserted into the center hole 3, Figure 3 As shown, a positioning step 18 for positioning the insertion depth is formed on the inner wall of the center hole 3 , so that the end of the pipe can abut against the positioning step 18 , thereby ensuring the depth of the pipe inserted into the center hole 3 .

[0032] The specific embodiments are merely explanations of the present invention and are not limitations of the present invention. After reading this specification, those skilled in the art may make modifications to the embodiments without any creative contribution as needed. However, as long as they are within the scope of the claims of the present invention, they are protected by the patent law.

Claims

1. A cooling tube integral bending forming die, comprising a die body (1), Features: The mold body (1) is a cylinder, one end of which is a clamping end (2). The mold body (1) is provided with a center hole (3) for forming a center straight pipe section (91). The mold body (1) is provided with an embedding groove (4) at the open end of the center hole (3). The embedding groove (4) is detachably connected with an embedding block (5) for forming an extended transition section (92). The outer circumferential surface of the mold body (1) is used to guide bending to form an outer spiral section (93).

2. A cooling pipe integral bending forming die according to claim 1, Features: The embedding groove (4) is provided with an inclined guide surface (6) on one side of the groove bottom, the inclined guide surface (6) is provided with an inclined guide groove (7) for embedding the pipe fitting, and the embedding block (5) is provided with an inclined pressing surface (8) for abutting against the inclined guide surface (6) and pressing the pipe fitting into the inclined guide groove (7).

3. A cooling pipe integral bending forming die according to claim 2, Features: The other side of the bottom of the embedding groove (4) is provided with a rear arc transition surface (9), and the embedding block (5) is provided with a front arc transition surface (10), and the two ends of the front arc transition surface (10) are respectively connected with the oblique pressure surface (8) and the rear arc transition surface (9).

4. The cooling pipe integral bending forming die according to claim 1, Features: A locking hole (11) is provided through the mold body (1) and the insert (5), and the locking hole (11) is provided with a locking pin (12).

5. The cooling pipe integral bending forming die according to claim 3, Features: The embedding groove (4) is detachably connected to a pressing block (13), and the pressing block (13) is provided with a transition pressing groove (14). The transition pressing groove (14) cooperates with the rear arc transition surface (9) and the front arc transition surface (10) to press the pipe fitting.

6. A cooling pipe integral bending forming die according to claim 5, Features: The mold body (1) is threadedly matched with a locking nut (15), and the locking nut (15) is used to press against the pressure block (13).

7. The cooling pipe integral bending forming die according to claim 5, Features: The groove wall of the embedding groove (4) is provided with a positioning straight groove (16), and the embedding block (5) and the pressing block (13) are provided with a positioning convex strip (17) that is slidably matched with the positioning straight groove (16).

8. The cooling pipe integral bending forming die according to claim 1, Features: The inner wall of the central hole (3) is provided with a positioning step (18) for positioning the insertion depth.

Images