Opening pulling machine

Abstract

The utility model belongs to the field of multi-channel metal pipe machining, and particularly relates to an opening pulling machine which comprises a rack, a die and a die core, a cavity used for containing the die is formed in the rack, a first through hole is formed in the side wall of the rack, a hydraulic rod is arranged in the first through hole in a sliding mode, the hydraulic rod is detachably connected with the die core, and the die comprises an upper die and a lower die. The upper die and the lower die are detachably connected, a cavity used for containing a metal pipe is formed between the upper die and the lower die, a second through hole is formed in the side wall of the die, and the second through hole corresponds to the first through hole in position. According to the utility model, the second through hole is formed in the die, the metal pipe is arranged in the die, and the die core is pulled out from the interior of the metal pipe by using the hydraulic rod, so that the pulling opening for mounting the branch pipe can be processed. The second through holes in the die can guarantee the dimensional precision of each pulling opening, and due to the fact that the metal pipe is fixed in the die, the second through holes can also guarantee the relative position precision of the pulling openings.

Description

Technical Field

[0001] This utility model belongs to the field of multi-channel metal tube processing, specifically relating to a tube drawing machine. Background Technology

[0002] Multi-channel metal conduits are tubular structures made of metal with multiple channels. These channels are typically located on the side walls of the conduit and are primarily used to increase pipeline branches, allowing the piping system to connect more branch lines. Multi-channel metal conduits play a vital role in the power industry, protecting the cables located within them and ensuring their proper functioning in harsh environments.

[0003] Various processing methods and equipment for multi-channel metal pipes have been proposed in the prior art. For example, the invention patent with application publication number CN 107932916 A discloses a tee production method, in which the branch pipe is aligned with the stepped hole and pressure is applied to the branch pipe. The branch pipe is rotated at high speed to melt the contact part between the branch pipe and the straight pipe. After melting, the branch pipe and the straight pipe are connected together. At the same time, the first metal pipe or the first metal rod and the second metal pipe or the second metal rod ensure that the molten material does not flow into or adhere to the inner wall of the straight pipe or the branch pipe. The flared third metal pipe makes the outer wall of the contact part between the branch pipe and the straight pipe form a conical surface.

[0004] The tee fittings produced by this method have high connection strength and smooth surface at the connection between the branch pipe and the straight pipe. However, the processing accuracy of this method is low. In particular, when multiple branch pipes are connected to the straight pipe, it is difficult to accurately position the relative positions of the multiple branch pipes, which does not meet the production requirements. Utility Model Content

[0005] The purpose of this invention is to provide a tongue-cutting machine to solve the problems mentioned in the background art.

[0006] To achieve the above-mentioned technical objectives, the technical solution of this utility model is as follows:

[0007] A stripping machine includes a frame, a mold, and a mold core. The frame has a cavity for accommodating the mold. A first through hole is provided on the side wall of the frame. A hydraulic rod is slidably disposed in the first through hole and is detachably connected to the mold core. The mold includes an upper mold and a lower mold, which are detachably connected. A cavity for accommodating a metal tube is provided between the upper mold and the lower mold. A second through hole is provided on the side wall of the mold, and the second through hole corresponds to the position of the first through hole.

[0008] As a further improvement, the mold core is provided with a third through hole in the axial direction, one end of the mold core has a tapered structure, and the other end of the mold core has a first annular groove along the circumference on the side wall.

[0009] As a further improvement, the output end of the hydraulic rod is provided with an annular second groove along the circumference, and the hydraulic rod is in sliding fit with the third through hole.

[0010] As a further improvement, the mechanical arm is further provided with a first supporting arm and a second supporting arm parallel to the first supporting arm, the first supporting arm is detachably provided with a fork plate for picking up the mold core, and the second supporting arm is slidably provided with an electromagnet connected with a clamping plate for fixing the mold core.

[0011] As a further improvement, the edge of the fork plate away from the first supporting arm is provided with a first opening matched with the first groove.

[0012] As a further improvement, the edge of the clamping plate away from the electromagnet is provided with a second opening matched with the second groove.

[0013] As a further improvement, the cavity of the frame is provided with a bracket for carrying the mold, the bracket comprises two parallel side frames, a plurality of rollers are rotatably installed between the two side frames, and a hydraulic jack is arranged below the bracket for supporting the bracket.

[0014] Due to the above technical scheme, the beneficial effects of the present application are as follows:

[0015] The pull-out machine provided by the present application can ensure the size precision of the pull-out by providing the second through hole in the mold, and can ensure the relative position precision between the plurality of pull-outs by fixing the position of the metal pipe in the mold. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is a structural schematic view of the whole utility model;

[0017] Figure 2 is a sectional view of the utility model;

[0018] Figure 3 is an assembly schematic view of the first supporting arm and the second supporting arm of the utility model;

[0019] Figure 4 is a structural schematic view of the mold core of the utility model.

[0020] Wherein: 1- rack, 101- first through hole, 2- mold, 201- upper die, 202- lower die, 203- second through hole, 3- hydraulic rod, 301- second groove, 4- mold core, 401- first groove, 402- third through hole, 5- mechanical arm, 6- first branch, 7- second branch, 8- fork plate, 801- first opening, 9- electromagnet, 10- card plate, 1001- second opening, 11- bracket, 1101- side frame, 1102- roller, 12- hydraulic top, 13- metal pipe. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical scheme and advantages of the utility model more clear and obvious, the utility model is further explained in detail below by combining with specific implementation manners and referring to the drawings. Among them, the drawings are only used for example description, and the representation is only a schematic diagram, not a physical picture, and cannot be understood as the limitation of the application; in order to better illustrate the embodiment of the utility model, some components of the drawings can be omitted, enlarged or reduced, and the size of the actual product is not represented; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings can be omitted.

[0022] The same or similar reference numerals in the drawings of the embodiments of the utility model correspond to the same or similar components; in the description of the utility model, it is understood that if there are terms such as 'upper', 'lower', 'left', 'right' and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, only for the convenience of describing the utility model and simplifying the description, and not indicating or implying that the indicated device or element must have a particular orientation, a particular orientation and operation, therefore the positional relationship of the terms described in the drawings is only used for example description, and cannot be understood as the limitation of the application, for those skilled in the art, the specific meaning of the above terms can be understood according to the specific situation.

[0023] As Figures 1-4As shown, a kind of pullout machine, including rack 1, mould 2 and mould core 4, the cavity for accommodating mould 2 is provided in the inside of rack 1, first through hole 101 is provided on the side wall of rack 1, actually, multiple first through holes 101 can be set in different positions of different side walls of rack 1, hydraulic rod 3 is slidably arranged in first through hole 101, hydraulic rod 3 is detachably connected with mould core 4, mould 2 includes upper die 201 and lower die 202, upper die 201 is detachably connected with lower die 202, the cavity for accommodating metal pipe 13 is provided between upper die 201 and lower die 202, second through hole 203 is provided on the side wall of mould 2, actually, multiple second through holes 203 can be set in different positions of different side walls of mould 2, the position of second through hole 203 corresponds with the position of first through hole 101.Specifically, coarse borehole is preprocessed on the side wall of metal pipe 13, the aperture of coarse borehole is less than the aperture of mould core 4, and the position of coarse borehole corresponds with the position of first through hole 101 and second through hole 203.In use, the output end of hydraulic rod 3 passes through first through hole 101, second through hole 203 and coarse borehole on metal pipe 13 in turn, places mould core 4 in the inside of metal pipe 13, and is connected with the output end of hydraulic rod 3, when hydraulic rod 3 contracts, mould core 4 is moved, under the thrust of mould core 4, the aperture of coarse borehole is expanded to standard size, and the inside wall of coarse borehole is extruded by mould core 4 and protrudes to the outer surface of metal pipe 13 to form pullout, after installing flange on pullout, pipeline branch can be connected.

[0024] In the embodiment, the third through hole 402 is provided on the mould core 4, one end of the mould core 4 is in a conical structure, and the side wall of the other end of the mould core 4 is provided with the annular first groove 401 along the circumference. Specifically, when the hydraulic rod 3 is contracted to move the mould core 4, the conical end of the mould core 4 is in front, and the outer side wall with gradually increasing diameter is easier to expand the coarse borehole to the required size.

[0025] In the embodiment, the annular second groove 301 is provided on the outer side wall of the output end of the hydraulic rod 3, and the hydraulic rod 3 is slidably fitted in the third through hole 402. Specifically, in use, the hydraulic rod 3 is slidably penetrated in the third through hole 402.

[0026] In the embodiment, the mechanical arm 5 is spaced apart from the rack 1, the first arm 6 and the second arm 7 parallel to the first arm 6 are fixedly connected to the mechanical arm 5, the fork plate 8 capable of prying the mould core 4 is detachably mounted on the first arm 6, and the electromagnet 9 is slidably connected to the second arm 7, and the clamping plate 10 for fixing the mould core 4 is attracted and connected to the electromagnet 9.

[0027] In the embodiment, the edge of the side of the fork plate 8 away from the first arm 6 is provided with the first opening 801, and the first opening 801 cooperates with the first groove 401.

[0028] In the embodiment, the edge of the clamping plate 10 away from the electromagnet 9 is provided with a second opening 1001, and the second opening 1001 is matched with the second groove 301.

[0029] In use, the first supporting arm 6 holds up the mold core 4 through the fork plate 8, the electromagnet 9 on the second supporting arm 7 is powered to hold up the clamping plate 10, the mechanical arm 5 extends the first supporting arm 6 and the second supporting arm 7 into the metal pipe 13, the mechanical arm 5 adjusts the angle, the conical end of the mold core 4 is aligned with the rough opening of the metal pipe 13, the hydraulic rod 3 is extended until it penetrates the third through hole 402, the electromagnet 9 drives the clamping plate 10 to move, and the second opening 1001 is matched with the second groove 301 to prevent the mold core 4 from falling off, when the hydraulic rod 3 is retracted, the clamping plate 10 also provides force support for the mold core 4, the electromagnet 9 is powered off and separated from the mold core 4, and the mechanical arm 5 withdraws the first supporting arm 6 and the second supporting arm 7 from the inside of the metal pipe 13.

[0030] In the embodiment, the cavity of the rack 1 is provided with a bracket 11 for carrying the mold 2, the bracket 11 includes two parallel side frames 1101, and a plurality of roller wheels 1102 are rotatably installed between the two side frames 1101, in use, the mold 2 is first hoisted to the bracket 11 by hoisting equipment, and then the mold 2 is pushed to a suitable position, the hydraulic jack 12 below the bracket 11 is used to support the bracket 11, and the hydraulic jack 12 can adjust the height of the bracket 11 relative to the bottom of the rack 1 to meet the use requirements of molds 2 of different sizes.

[0031] In use, the upper mold 201 of the mold 2 is first hoisted by hoisting equipment, the metal pipe 13 to be processed is placed on the corresponding position of the lower mold 202, the upper mold 201 is closed after the upper mold 201 is closed, and the upper mold 201 and the lower mold 202 are fastened by bolts. The mold 2 is hoisted to the bracket 11, the mold 2 is pushed to a suitable position, the gasket is installed between the mold 2 and the cavity wall of the rack 1 to fix the relative position of the mold 2 and the rack 1, then the hydraulic rod 3 drives the mold core 4 to expand the rough opening, after the expansion is completed, the mold 2 is disassembled from the rack 1, the upper mold 201 is opened, and the metal pipe 13 is taken out.

[0032] The specific implementation method of the utility model described above does not constitute a limitation on the protection scope of the utility model. Any various other corresponding changes and modifications made according to the technical concept of the utility model should be included in the protection scope of the utility model claim.

Claims

1. A puller comprising a frame, a die, and a core, wherein, The machine frame is internally provided with a cavity for accommodating a mold, a first through hole is arranged on the side wall of the machine frame, a hydraulic rod is slidingly arranged in the first through hole, the hydraulic rod is detachably connected with the mold core, the mold comprises an upper mold and a lower mold, the upper mold is detachably connected with the lower mold, a cavity for accommodating a metal pipe is arranged between the upper mold and the lower mold, a second through hole is arranged on the side wall of the mold, and the position of the second through hole corresponds to the position of the first through hole.

2. A capper as claimed in claim 1, characterised in that The mold core is provided with an axial third through hole, one end of the mold core is a conical structure, and a circumferential annular first groove is arranged on the side wall of the other end of the mold core.

3. A capper as claimed in claim 2, characterised in that, The output end of the hydraulic rod is provided with a circumferential annular second groove, and the hydraulic rod is slidingly matched with the third through hole.

4. A capper as claimed in claim 3, characterised in that Further comprising a mechanical arm, the mechanical arm is arranged in a spaced manner with the machine frame, a first supporting arm and a second supporting arm arranged in parallel with the first supporting arm are fixedly connected on the mechanical arm, a fork plate capable of prying the mold core is detachably mounted on the first supporting arm, an electromagnet is slidingly connected on the second supporting arm, and a clamping plate for fixing the mold core is attractively connected with the electromagnet.

5. A capper as claimed in claim 4, characterised in that, An edge of a side of the fork plate away from the first supporting arm is provided with a first opening, and the first opening is matched with the first groove.

6. A capper as claimed in claim 4, characterised in that An edge of a side of the clamping plate away from the electromagnet is provided with a second opening, and the second opening is matched with the second groove.

7. A capper as claimed in claim 4, characterised in that A bracket for carrying the mold is arranged through the cavity of the machine frame, the bracket comprises two parallel side frames, a plurality of rollers are rotatably mounted between the two side frames, and a hydraulic jack for supporting the bracket is arranged below the bracket.

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