Metal bent pipe stamping device

Abstract

The invention discloses a metal bent pipe stamping device, and relates to the technical field of metal machining. The device comprises a box body, a plate body is fixed to the box body, a hydraulic telescopic device is fixed to the plate body, and a push head is installed at the end of the hydraulic telescopic device; two sliding grooves are symmetrically formed in the plate body, strip-shaped holes are formed in one sides of the two sliding grooves, retainers are installed on the sliding grooves, the two retainers are located on the two sides of the push head, and clamping assemblies are installed on the strip-shaped holes. According to the metal pipe punching device, the installed hydraulic telescopic device drives the push head to move towards the arranged clamping assembly so as to punch a pipe body, and therefore a metal pipe can be conveniently pressed into a U-shaped structure.

Description

Technical Field

[0001] The present invention belongs to the technical field of metal processing, and particularly relates to a metal pipe bending and stamping device. Background Art

[0002] The bending forming of metal pipes occupies an important position in various mechanical fields. For example, a lot of U-shaped bent pipes are required in the production of the gas path connection of high-voltage electrical equipment. During the installation and operation of high-voltage electrical equipment, U-shaped bent pipes are used to compensate for the dimensional changes of pipelines caused by installation, thermal expansion and contraction, and operating vibration. In the existing stamping and forming of metal U-shaped bent pipes, due to large deformation, the side of the pipe body is easily damaged. Summary of the Invention

[0003] The purpose of the present invention is to provide a metal pipe bending and stamping device. By driving a push head to move towards a provided clamping assembly through a installed hydraulic telescopic device for stamping on a pipe body, it is convenient to press a metal pipe into a U-shaped structure, solving the related problems proposed in the background art.

[0004] To solve the above technical problems, the present invention is realized through the following technical solutions: The present invention is a metal pipe bending and stamping device, including a box body. A plate body is fixed on the box body. A hydraulic telescopic device is fixed on the plate body. A push head is installed at the end of the hydraulic telescopic device; two chutes are symmetrically opened on the plate body. A strip-shaped hole is opened on one side of the two chutes. A cage is installed on the chutes. Among them, the two provided cages are located on both sides of the push head, and a clamping assembly is installed on the strip-shaped hole.

[0005] Further, the cage includes a rotating wheel, a sliding frame and a column. A prism is provided on the bottom surface of the sliding frame, and the prism is fitted and installed in the chute. Two columns are symmetrically installed on the upper end surface of the sliding frame, and a sliding frame is sleeved on the columns; among them, the chute near the middle of the plate body is an arc section, and the central angle corresponding to the arc section is 90°.

[0006] Further, the clamping assembly includes a fixed seat, a push block, a guide rod, a spring, a pin shaft and a pressing wheel. A deep groove is opened on the fixed seat. A strip-shaped groove penetrates through the bottom surface of the deep groove. Two push blocks are slidably installed in the deep groove. A guide rod is fixed on the end surface of the push block. The guide rod passes through a guide hole opened on the side surface of the deep groove. A spring is sleeved on the guide rod, and the installed spring pushes the push block to move towards the middle of the deep groove; a pin shaft sliding along the strip-shaped groove is installed on the push block. The end of the pin shaft extends upward through the strip-shaped hole, and a pressing wheel is installed on the extended end of the pin shaft.

[0007] Further, a limiting groove corresponding to the push head is formed on the plate body, and a convex column provided on the bottom surface of the push head passes through the limiting groove and extends downward; a push plate provided on the lower side of the plate body is mounted on the convex column.

[0008] Further, an oblong hole connected to the convex column is formed on the push plate, an extension rod extends on one side of the push plate close to the pin shaft, teeth are provided on the inner side of the extension rod, a chamfer structure is provided at the end of the extension rod, and the outer side surface of the push plate is an inclined surface.

[0009] Further, two through holes are symmetrically formed on the plate body, the two through holes are located between the two sliding grooves, and a telescopic limiting component is installed in the through holes.

[0010] Further, the limiting component includes a screw rod, a clamping seat and a gear, a gear is correspondingly provided on the bottom surface of the through hole, the gear is mounted on the bottom surface of the plate body through the clamping seat, a screw rod is fitted and installed in the gear, the end of the screw rod extends out through the through hole, and a limiting groove formed on the screw rod cooperates with a limiting protrusion of the clamping seat; the gear meshes with the teeth of the extension rod.

[0011] The present invention has the following beneficial effects: 1. In the present invention, the pipe body to be stamped is placed between the two cages, and the installed hydraulic telescopic device drives the push head to move towards the provided clamping component for stamping the pipe body, so as to facilitate pressing the metal pipe into a U-shaped structure.

[0012] 2. When the metal pipe is stamped and formed in the present invention, the two ends of the metal pipe tilt upwards, driving the sliding frames in the provided cages to move towards the middle of the plate body along the sliding grooves. Since a prism is provided on the bottom surface of the sliding frame, when the provided sliding frame moves along the arc section of the sliding groove, the maximum rotation angle is 90°, so as to realize the change from restricting the horizontal metal pipe to restricting the vertical metal pipe, meeting the restriction requirements during the forming process of the metal pipe.

[0013] 3. The provided push head in the present invention pushes the metal pipe to be extruded by the two pressing wheels, and the two pressing wheels push the two pin shafts to move outwards, facilitating the formation of a V-shaped structure. When the end of the provided push head passes through the two pressing wheels, the two provided extension rods are stuck on the outer sides of the two pin shafts, preventing the provided pressing wheels from continuing to move outwards, realizing that the pressing wheels push the metal pipe to fit on the vertical side surface of the push head, completing the forming of the U-shaped pipe, and effectively reducing the deformation amount of the metal pipe in a short time, thereby avoiding the problem that the outer side surface of the metal pipe cracks due to excessive deformation amount in a short time.

[0014] 4. When the two extension rods provided in the present invention are stuck outside the two pin shafts, the inclined surface provided is in contact with the prism on the bottom surface of the sliding frame, pushing the provided sliding frame to move outward along the sliding groove. During the further outward movement, the connection line of the two rotating wheels provided on the sliding frame changes from horizontal to vertical, completing the bending of the end of the metal pipe.

[0015] 5. During the process of the push plate provided in the present invention following the movement of the push head, the provided gear is driven to rotate through the extension rod, and the internal thread of the gear pushes the screw rod to extend upward. During the bending process of the end of the metal pipe, it is bent by extrusion with the screw rod, so as to facilitate the unification of the size of the bent end of the metal pipe.

[0016] Of course, it is not necessary for any product implementing the present invention to achieve all the above-mentioned advantages simultaneously. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0018] Figure 1 is a schematic diagram of the overall structure of the present invention; Figure 2 is a schematic diagram of the partial structure of the present invention; Figure 3 is a schematic diagram of the partial bottom view structure of the present invention; Figure 4 is a schematic diagram of the cooperation structure of the clamping assembly and the push plate of the present invention; Figure 5 is a schematic diagram of the cooperation structure of the push plate and the limit assembly of the present invention; Figure 6 is a schematic diagram of the cage structure of the present invention; In the drawings, the list of components represented by each reference numeral is as follows: 1 - box body, 2 - plate body, 21 - sliding groove, 22 - through hole, 23 - strip hole, 24 - limit groove, 3 - hydraulic telescopic device, 4 - push head, 41 - convex column, 5 - cage, 51 - rotating wheel, 52 - sliding frame, 53 - column, 6 - clamping assembly, 61 - fixed seat, 611 - deep groove, 612 - strip groove, 62 - push block, 63 - guide rod, 64 - spring, 65 - pin shaft, 66 - pressing wheel, 7 - push plate, 71 - waist-shaped hole, 72 - extension rod, 8 - limit assembly, 81 - screw rod, 82 - clamping seat, 83 - gear. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] In the description of the present invention, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inside", "all around" and the like indicating orientation or positional relationship are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0021] See also Figure 1-6 As shown, the present invention is a metal pipe bending stamping device, including a box body 1, a plate body 2 is fixed on the box body 1, a hydraulic telescopic device 3 is fixed on the plate body 2, and a push head 4 is installed on the end of the hydraulic telescopic device 3; two slide grooves 21 are symmetrically opened on the plate body 2, and a strip hole 23 is opened on one side of the two slide grooves 21, and a retaining frame 5 is installed on the slide groove 21, wherein the two retaining frames 5 are located on both sides of the push head 4, and a clamping assembly 6 is installed on the strip hole 23.

[0022] During use, the tube body to be stamped is placed between the two retaining frames 5, and the installed hydraulic telescopic device 3 drives the push head 4 to move toward the provided clamping assembly 6 to stamp the tube body, thereby facilitating pressing the metal tube into a U-shaped structure.

[0023] The retaining frame 5 includes a rotating wheel 51, a sliding frame 52 and a column 53. The bottom surface of the sliding frame 52 is provided with a prism, and the prism is installed in the slide groove 21. Two columns 53 are symmetrically installed on the upper end surface of the sliding frame 52, and the sliding frame 52 is sleeved on the column 53; wherein, the slide groove 21 is an arc section near the middle of the plate body 2, and the central angle corresponding to the arc section is 90°.

[0024] When the metal tube is stamped and formed, the two ends of the metal tube are tilted upward, driving the sliding frame 52 in the retaining frame 5 to move along the slide groove 21 toward the middle of the plate body 2. Since a prism is provided on the bottom surface of the sliding frame 52, when the sliding frame 52 moves along the arc section of the slide groove 21, the maximum rotation angle is 90°, thereby realizing the change from restriction on horizontal metal tubes to restriction on vertical metal tubes, meeting the restriction requirements in the metal tube forming process.

[0025] The clamping assembly 6 includes a fixed seat 61, a push block 62, a guide rod 63, a spring 64, a pin shaft 65 and a pressing wheel 66. A deep groove 611 is formed in the fixed seat 61, and a strip-shaped groove 612 penetrates through the bottom surface of the deep groove 611. Two push blocks 62 are slidably installed in the deep groove 611. A guide rod 63 is fixed to the end face of the push block 62. The guide rod 63 passes through a guide hole formed in the side surface of the deep groove 611. A spring 64 is sleeved on the guide rod 63, and the installed spring 64 pushes the push block 62 to move towards the middle of the deep groove 611; A pin shaft 65 that slides along the strip-shaped groove 612 is installed on the push block 62. The end of the pin shaft 65 extends upward through the strip-shaped hole 23, and a pressing wheel 66 is installed on the extended end of the pin shaft 65.

[0026] During the process of metal tube forming, the provided push head 4 pushes the metal tube towards the two pressing wheels 66 for extrusion. The two pressing wheels 66 push the two pin shafts 65 to move outward, facilitating the formation of a V-shaped structure. When the end of the provided push head 4 passes through the two pressing wheels 66, the two provided extension rods 72 are stuck outside the two pin shafts 65, preventing the provided pressing wheels 66 from continuing to move outward, enabling the pressing wheels 66 to push the metal tube to fit against the vertical side surface of the push head 4, completing the forming of the U-shaped tube, and effectively reducing the deformation amount of the metal tube in a short period of time, thereby avoiding the problem of the outer side surface of the metal tube cracking due to excessive deformation amount in a short period of time.

[0027] A limiting groove 24 corresponding to the push head 4 is also formed in the plate body 2. A convex column 41 provided on the bottom surface of the push head 4 extends downward through the limiting groove 24; A push plate 7 provided on the lower side of the plate body 2 is installed on the convex column 41.

[0028] A waist-shaped hole 71 connected to the convex column 41 is formed in the push plate 7. An extension rod 72 extends from one side of the push plate 7 close to the pin shaft 65. Teeth are provided on the inner side of the extension rod 72. A chamfer structure is provided at the end of the extension rod 72. The outer side surface of the push plate 7 is an inclined surface.

[0029] When the two provided extension rods 72 are stuck outside the two pin shafts 65, the provided inclined surface is in contact with a prism on the bottom surface of the sliding frame 52, pushing the provided sliding frame 52 to move outward along the sliding groove 21. During the further outward movement, the connection line of the two rotating wheels 51 provided on the sliding frame 52 changes from horizontal to vertical, completing the bending of the end of the metal tube.

[0030] Two through holes 22 are also symmetrically formed in the plate body 2. The two through holes 22 are located between the two sliding grooves 21, and a telescopic limiting component 8 is installed in the through holes 22.

[0031] The limit component 8 includes a screw rod 81, a clamping seat 82 and a gear 83. A gear 83 is correspondingly provided on the bottom surface of the through hole 22. The gear 83 is installed on the bottom surface of the plate body 2 through the clamping seat 82. A screw rod 81 is fitted and installed inside the gear 83. The end of the screw rod 81 extends out through the through hole 22. A limit groove formed on the screw rod 81 cooperates with a limit protrusion of the clamping seat 82; the gear 83 meshes with the teeth of the extension rod 72.

[0032] During the process that the provided push plate 7 moves following the push head 4, the provided gear 83 is driven to rotate through the extension rod 72. The internal thread of the gear 83 pushes the screw rod 81 to extend upward. During the bending process of the end of the metal pipe, it is bent by extruding with the screw rod 81, so as to facilitate unifying the size of the bent end of the metal pipe.

[0033] In the description of this specification, the descriptions with reference to terms such as "one embodiment", "example", "specific example", etc. mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0034] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific embodiments described. Obviously, many modifications and variations can be made according to the content of this specification. These embodiments are selected and specifically described in this specification in order to better explain the principles and practical applications of the present invention, so that those skilled in the art in the technical field can well understand and utilize the present invention. The present invention is only limited by the claims and their full scope and equivalents.

Claims

1. A metal pipe bending punching device, comprising a box (1), characterized in that: A plate body (2) is fixed on the box body (1), a hydraulic telescopic device (3) is fixed on the plate body (2), and a push head (4) is installed at the end of the hydraulic telescopic device (3); The plate body (2) is symmetrically provided with two slide grooves (21), one side of the two slide grooves (21) is provided with a strip hole (23), and a retaining frame (5) is installed on the slide groove (21), wherein the two retaining frames (5) are located on both sides of the push head (4), and a clamping assembly (6) is installed on the strip hole (23).

2. A metal pipe bending punching device according to claim 1, characterized in that: The retaining frame (5) comprises a rotating wheel (51), a sliding frame (52) and a column (53); a prism is provided on the bottom surface of the sliding frame (52), and the prism is mounted in the slide groove (21); two columns (53) are symmetrically mounted on the upper end surface of the sliding frame (52), and the sliding frame (52) is sleeved on the column (53); The slide groove (21) is an arc segment near the middle of the plate body (2), and the central angle of the arc segment is 90°.

3. A metal pipe bending punching device according to claim 1, characterized in that: The clamping assembly (6) comprises a fixed seat (61), a push block (62), a guide rod (63), a spring (64), a pin (65) and a clamping wheel (66); a deep groove (611) is formed on the fixed seat (61); a strip groove (612) runs through the bottom surface of the deep groove (611); two push blocks (62) are slidably mounted in the deep groove (611); a guide rod (63) is fixed to the end surface of the push block (62); the guide rod (63) passes through a guide hole formed on the side surface of the deep groove (611); a spring (64) is sleeved on the guide rod (63); the installed spring (64) pushes the push block (62) to move toward the middle of the deep groove (611); The push block (62) is provided with a pin shaft (65) which slides along the strip groove (612); the end of the pin shaft (65) passes through the strip hole (23) and extends upward; a pressure wheel (66) is provided on the extended end of the pin shaft (65).

4. A metal pipe bending punching device according to claim 1, characterized in that: The plate body (2) is also provided with a limiting groove (24) corresponding to the push head (4), and a convex column (41) provided on the bottom surface of the push head (4) passes through the limiting groove (24) and extends downward; The push plate (7) provided on the lower side of the plate body (2) is mounted on the convex column (41).

5. A metal pipe bending punching device according to claim 4, characterized in that: The push plate (7) is provided with a waist-shaped hole (71) connected to the convex column (41); an extension rod (72) extends from a side of the push plate (7) close to the pin shaft (65); teeth are provided on the inner side of the extension rod (72); a chamfered structure is provided at the end of the extension rod (72); and the outer side surface of the push plate (7) is an inclined surface.

6. A metal pipe bending punching device according to claim 1, characterized in that: The plate body (2) is also symmetrically provided with two through holes (22), the two through holes (22) being located between the two slide grooves (21), and a retractable limiting component (8) is installed in the through holes (22).

7. A metal pipe bending punching device according to claim 2, characterized in that: The limiting assembly (8) comprises a screw rod (81), a clamping seat (82) and a gear (83); the bottom surface of the through hole (22) is provided with a gear (83) correspondingly; the gear (83) is mounted on the bottom surface of the plate body (2) via the clamping seat (82); the screw rod (81) is mounted in the gear (83); the end of the screw rod (81) extends through the through hole (22); the limiting groove on the screw rod (81) cooperates with the limiting protrusion of the clamping seat (82); the gear (83) meshes with the teeth of the extension rod (72).

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