Die head special for pipe bending machine for bending thin-wall pipe fitting
By designing a special die head for pipe bending machines for thin-walled pipe fittings, the guide and support sheet structures are used to reduce the collapse and deformation of thin-walled pipe fittings during bending, solving the problem that thin-walled pipe fittings are prone to collapse during bending, achieving stable support and convenient maintenance.
Patent Information
- Application Number
- CN202422256206.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-14
- Publication Date
- 2025-07-22
- Estimated Expiration
- 2034-09-14
AI Technical Summary
Thin-walled pipe fittings are easily collapsed or fractured during bending, which affects the use effect.
The die head structure including a first die head, a second die head, a guide head, a shrapnel and a support sheet is adopted. The inner ring of the thin-walled pipe fitting is guided by a circular table-shaped guide and supported by the support sheet. The shrapnel is made of beryllium copper material to provide elastic support. The support sheet is fixed by strong glue, and the support sheet is distributed equidistantly for stable support.
It reduces the collapse and deformation of thin-walled pipe fittings during bending, improves the stability and support effect of bending, and facilitates the replacement and maintenance of die heads.
Smart Images
Figure CN223129040U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of pipe bender accessories, and particularly relates to a special die head for a pipe bender used for bending thin-walled pipe fittings. Background Technique
[0002] After production, thin-walled pipe fittings are usually straight pipes. However, due to reasons such as the distribution position of equipment, space partitions, and obstruction by other pipes during the assembly of thin-walled pipe fittings, the thin-walled pipe fittings cannot be installed, or they themselves need a specific shape. Therefore, it is necessary to bend the straight thin-walled pipe fittings through a pipe bender to facilitate subsequent installation and processing into a specified shape.
[0003] When the thin-walled pipe fittings are bent by the pipe bender, the pipe bender mainly applies pressure to the thin-walled pipe fittings to make them bend. However, due to the relatively thin wall thickness of the thin-walled pipe fittings themselves, during the bending process, the points where the pressure is applied are easily squeezed and deformed to form pits, which affects subsequent use, and in severe cases, the thin-walled pipe fittings may be cracked. Content of the Utility Model
[0004] Based on this, the purpose of the utility model is to provide a special die head for a pipe bender used for bending thin-walled pipe fittings, so as to solve the technical problems mentioned in the above background technique.
[0005] To achieve the above purpose, the utility model provides the following technical solution: A special die head for a pipe bender used for bending thin-walled pipe fittings, including a first die head and a thin-walled pipe fitting body. A spring piece is connected to the bottom of the first die head, and a support piece is connected to the outer surface of the spring piece. The bottom of the spring piece is connected to a second die head, and a guide head is fixed to the bottom of the second die head.
[0006] By adopting the above technical solution, the conical guide head is used for guiding so that the die head can enter the thin-walled pipe fitting. When the die head enters the inside of the thin-walled pipe fitting body to start bending the pipe, the inner circle of the thin-walled pipe fitting body is supported by the support piece, thereby reducing the occurrence of the phenomenon that the thin-walled pipe fitting is pressed and collapsed. At the same time, the spring piece bends and still supports multiple support pieces, preventing the support pieces from running randomly and affecting the support effect.
[0007] Further, the spring piece is made of beryllium copper.
[0008] By adopting the above technical solution, before and during pipe bending, the spring piece supports multiple support pieces. The spring piece made of beryllium copper has good elasticity, can adapt to the bending of the thin-walled pipe fitting body and can automatically return to a straight state, so as to facilitate the subsequent insertion of the entire die head into the thin-walled pipe fitting body.
[0009] Further, a plurality of support pieces are provided, and the plurality of support pieces are evenly distributed.
[0010] By adopting the above technical solution, the inner ring of the thin-walled pipe body is supported by the support sheet, thereby reducing the occurrence of the phenomenon that the thin-walled pipe body is compressed and collapsed.
[0011] Furthermore, the support sheet is fixedly connected to the spring sheet by bonding with strong glue.
[0012] By adopting the above technical solution, multiple support sheets are fixed to the surface of the spring sheet by using strong glue, so that the multiple support sheets are stably connected and are not easy to loosen, deviate or fall off.
[0013] Furthermore, the guide head is in a truncated cone shape.
[0014] By adopting the above technical solution, the entire die head is guided by the truncated cone-shaped guide head, which facilitates the second die head, the support sheet and the first die head to enter the interior of the thin-walled pipe body.
[0015] Furthermore, the first die head is located inside the thin-walled pipe body, and a flange is fixed on the top of the first die head.
[0016] By adopting the above technical solution, the flange plate is connected by a flange to install the first die head on a linear motion mechanism such as a cylinder or a hydraulic cylinder. The first die head is then pushed by the linear motion mechanism to move toward the main body of the thin-walled pipe fitting, so that the main body of the thin-walled pipe fitting can be supported when bending the pipe.
[0017] Furthermore, slots are provided inside the first die head and the second die head, through holes are provided on both sides of the spring sheet, the first die head and the second die head, and bolts and nuts are provided inside the through holes.
[0018] By adopting the above technical scheme, when the first die head, the second die head, the guide head, the spring piece and the support sheet are damaged, the bolts and nuts can be removed to end the limiting between the first die head, the second die head and the spring piece, and then the spring piece can be pulled out from the first die head and the die head, thereby facilitating the replacement of the first die head and the flange, the second die head and the guide head, and the spring piece and the support sheet.
[0019] Furthermore, the top and bottom of the spring piece are detachably connected to the first die head and the second die head respectively through slots and bolts and nuts.
[0020] By adopting the above technical solution, the spring piece is inserted into the slots on the first die head and the second die head, and then the bolts and nuts are passed through the through holes on the first die head, the second die head and the spring piece and tightened, thereby completing the structural limitation.
[0021] In summary, the utility model mainly has the following beneficial effects:
[0022] The utility model is provided with a first die head, a second die head, a guide head, a spring piece and a support piece. The frustum-shaped guide head is used for guiding so as to facilitate the die head to enter the thin-walled pipe fitting. When the die head enters the inside of the thin-walled pipe fitting body to start bending the pipe, the inner ring of the thin-walled pipe fitting body is supported by the support piece, thereby reducing the occurrence of the phenomenon that the thin-walled pipe fitting is pressed and collapsed. At the same time, the bent spring piece still supports the plurality of support pieces to prevent the support pieces from running randomly and affecting the support effect; it is convenient to support the stress point when bending the thin-walled pipe fitting body, thereby reducing the occurrence of the phenomenon that the thin-walled pipe fitting body is sunken and deformed. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] Figure 1 is a schematic structural diagram of the first die head of the utility model;
[0024] Figure 2 is a schematic structural diagram of the utility model;
[0025] Figure 3 is a schematic sectional structural diagram of the utility model;
[0026] Figure 4 is an exploded structural diagram of the first die head of the utility model.
[0027] In the figure: 1, first die head; 2, flange; 3, thin-walled pipe fitting body; 4, second die head; 5, bolt and nut; 6, guide head; 7, spring piece; 8, support piece; 9, through hole; 10, slot. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0028] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. The embodiments described below by referring to the accompanying drawings are exemplary and are only used to explain the present utility model and should not be construed as limiting the present utility model.
[0029] The embodiments of the present utility model will be described below according to its overall structure.
[0030] Embodiment 1:
[0031] A special die head for a pipe bender for bending thin-walled pipe fittings, such as Figure 1 、 Figure 3 and Figure 4As shown, it includes a first die head 1 and a thin-walled pipe fitting body 3, a spring piece 7 is connected to the bottom of the first die head 1, and the spring piece 7 is made of beryllium copper, which is convenient for supporting multiple support pieces 8; the outer surface of the spring piece 7 is connected to the support piece 8, and the support piece 8 is fixedly connected to the spring piece 7 by bonding with strong glue, and the connection is stable and not easy to loosen and fall off; there are multiple support pieces 8, and the multiple support pieces 8 are equidistantly distributed, and the inner circle of the thin-walled pipe fitting body 3 is supported by the support pieces 8, thereby reducing the phenomenon of the thin-walled pipe fitting body 3 being compressed and collapsed; the bottom of the spring piece 7 is connected to the second die head 4, and the bottom of the second die head 4 is fixed with a guide head 6, which is truncated cone-shaped, and the entire die head is guided by the truncated cone-shaped guide head 6, so that the second die head 4, the support piece 8 and the first die head 1 are convenient for entering the interior of the thin-walled pipe fitting body 3.
[0032] See also Figures 1-4 In the above embodiment, the first die head 1 is located inside the thin-walled pipe body 3, and a flange 2 is fixed on the top of the first die head 1. The flange 2 is connected by a flange to install the first die head 1 on a linear motion mechanism such as a cylinder or a hydraulic cylinder. Then, the first die head 1 is pushed by the linear motion mechanism to move toward the thin-walled pipe body 3, so that the thin-walled pipe body 3 can be supported when bending the pipe.
[0033] Embodiment 2:
[0034] On the basis of the above-mentioned embodiment 1, in order to facilitate the replacement of damaged structures, the following settings are now adopted.
[0035] See also Figure 1 , Figure 3 and Figure 4 In the above embodiment, a slot 10 is provided inside the first die head 1 and the second die head 4, and through holes 9 are provided on both sides of the spring piece 7, the first die head 1 and the second die head 4, and bolts and nuts 5 are arranged inside the through holes 9. The top and bottom of the spring piece 7 are respectively detachably connected to the first die head 1 and the second die head 4 through the slot 10 and the bolts and nuts 5. When the first die head 1, the second die head 4, the guide head 6, the spring piece 7 and the support sheet 8 are damaged, the bolts and nuts 5 can be removed to end the limiting between the first die head 1, the second die head 4 and the spring piece 7, and then the spring piece 7 can be pulled out from the first die head 1 and the die head, so as to facilitate the replacement of the three parts of the first die head 1 and the flange 2, the second die head 4 and the guide head 6, and the spring piece 7 and the support sheet 8.
[0036] The implementation principle of the utility model is as follows: first, the staff installs the first die head 1 on a linear motion mechanism such as a cylinder or a hydraulic cylinder by means of a flange connection with the flange plate 2, and then pushes the first die head 1 to move toward the thin-walled pipe body 3 through the linear motion mechanism. At this time, the entire die head is guided by the truncated cone-shaped guide head 6, so that the second die head 4, the support sheet 8 and the first die head 1 can enter the interior of the thin-walled pipe body 3;
[0037] When the entire die head enters the interior of the thin-walled pipe fitting body 3 and starts bending the pipe, the inner ring of the thin-walled pipe fitting body 3 is supported by the support pieces 8, thereby reducing the occurrence of the phenomenon that the thin-walled pipe fitting body 3 is pressed and collapsed. At the same time, the elastic piece 7 bends and still supports the plurality of support pieces 8 to prevent the support pieces 8 from randomly moving and affecting the support effect. After the pipe bending is completed, the linear motion mechanism moves in the reverse direction, and the entire die head can be withdrawn from the thin-walled pipe fitting body 3;
[0038] When the first die head 1, the second die head 4, the guide head 6, the elastic piece 7 and the support piece 8 are damaged, the bolt and nut 5 can be removed to end the limitation between the first die head 1, the second die head 4 and the elastic piece 7. After that, the elastic piece 7 can be withdrawn from the first die head 1 and the die head, so as to facilitate the replacement of three parts: the first die head 1 and the flange 2, the second die head 4 and the guide head 6, and the elastic piece 7 and the support piece 8.
[0039] Although the embodiments of the present invention have been shown and described, the specific embodiments are only explanations of the present invention and not limitations thereof. The specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art can, without departing from the principles and purposes of the present invention, make modifications, substitutions and variations that do not make creative contributions to the embodiments as needed, but 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 special die head for a pipe bender used for bending thin-walled pipe fittings, comprising a first die head (1) and a thin-walled pipe fitting body (3), characterized in that: A shrapnel piece (7) is connected to the bottom of the first die head (1), and a support piece (8) is connected to the outer surface of the shrapnel piece (7). The bottom of the shrapnel piece (7) is connected to a second die head (4), and a guide head (6) is fixed to the bottom of the second die head (4).
2. The special die head for a tube bender used for bending thin-walled pipe fittings according to claim 1, wherein: The shrapnel piece (7) is made of beryllium copper.
3. The special die head for a tube bender used for bending thin-walled pipe fittings according to claim 1, characterized in that: A plurality of the support pieces (8) are provided, and the plurality of support pieces (8) are equidistantly distributed.
4. The special die head for a tube bender used for bending thin-walled pipe fittings according to claim 3, characterized in that: The support piece (8) is fixedly connected to the shrapnel piece (7) by adhesion using strong glue.
5. The special die head for a tube bender used for bending thin-walled pipe fittings according to claim 1, characterized in that: The guide head (6) is frustum-shaped.
6. The special die head for a tube bender used for bending thin-walled pipe fittings according to claim 1, characterized in that: The first die head (1) is located inside the thin-walled pipe fitting body (3), and a flange (2) is fixed to the top of the first die head (1).
7. The special die head for a pipe bender used for bending thin-walled pipe fittings according to claim 1, wherein: Slots (10) are formed inside both the first die head (1) and the second die head (4). Through holes (9) are formed on both sides of the shrapnel piece (7), the first die head (1), and the second die head (4), and bolt nuts (5) are arranged inside the through holes (9).
8. The special die head for a pipe bender used for bending thin-walled pipe fittings according to claim 7, wherein: The top and bottom of the shrapnel piece (7) are detachably connected to the first die head (1) and the second die head (4) respectively through the slots (10) and the bolt nuts (5).