Working method of a core-symmetrical piercing die for a foil tube

Abstract

The application discloses a working method of a foil pipe shaft core symmetrical punching die, which comprises a die body, a punching die assembly installed on a punch and a swing table assembly installed on the punch and used for placing a round pipe workpiece, the punching die assembly comprises an upper die assembly, a lower die assembly and a rebound spring, and the swing table assembly comprises a swing table base assembly and a workpiece fastening assembly; the upper die assembly comprises an upper die block; the lower die assembly comprises an upper half lower die, a lower half lower die and two adjusting blocks clamped between the upper half lower die and the lower half lower die; the working method of the foil pipe shaft core symmetrical punching die can effectively guarantee the symmetry of the two side notches of the punched pipe, the punch can be replaced, the die wear cost is greatly reduced, and in addition, the die can also be suitable for pipes with different diameters and lengths, and the application range is wider.

Description

Technical Field

[0001] This invention relates to a working method of a symmetrical punching die for a foil tube shaft, belonging to the field of tube punching dies. Background Technology

[0002] The notch on the foil collecting tube shaft is generally processed by punching with a punch press. There are notches on both sides of the tube, and the two notches are symmetrical along the center. During the punching process, due to inaccurate positioning and other reasons, the notches on both sides often become asymmetrical. In addition, since there is no support inside the tube during punching, the tube is prone to deformation. Summary of the Invention

[0003] The purpose of this invention is to overcome the shortcomings of existing processes and provide a working method for a symmetrical punching die for a foil-collecting tube core that can punch both sides of the tube simultaneously, can meet the punching requirements of tubes with different diameters, and has replaceable punches.

[0004] To solve the above-mentioned technical problems, the present invention is implemented using the following technical solution:

[0005] A method for using a symmetrical punching die for a foil collecting tube shaft, characterized in that:

[0006] The device includes a mold body, comprising a punching die assembly mounted on a punch press, and a swing table assembly mounted on the punch press for placing round tube workpieces. The punching die assembly includes an upper die assembly, a lower die assembly, and a return spring. The swing table assembly includes a swing table base assembly and a workpiece fastening assembly. The upper die assembly includes an upper die block, with two vertically aligned punch fixing bases extending from the side of the upper die block. A bolt through hole is formed between the two punch fixing bases, through which a bolt passes and threadedly fixes a punch below the punch fixing base. An upper die guide block extends from the upper surface of the upper die block, with guide holes on both sides of the upper die guide block. An upper die fixing block extends from the upper surface of the upper die guide block. The lower mold assembly includes an upper lower mold and a lower lower mold, and further includes two adjusting blocks clamped between the upper and lower lower molds; the upper lower mold includes a first positioning rack assembly, a first upper mold punch, a first workpiece insertion slot, a workpiece support block, and a guide rod; the lower lower mold includes a second positioning rack assembly, a second upper mold punch, and a second workpiece insertion slot; the adjusting blocks include a third positioning rack assembly and a fourth positioning rack assembly; the swing platform base assembly includes a fixed plate, a workpiece support plate, an adjusting plate, and an elongated hole; the workpiece fastening assembly includes a sliding base plate, a workpiece support plate, a base, and an adjusting knob, the front end of which is fixed with a threaded rod, the front end of which is fastened to a top plate by double nuts; characterized in that it includes

[0007] Step one: the punch is fixed to the punch fixed base through screw, and the upper die assembly is fixed to the punch ram of the punch through bolt;

[0008] Step two: the rebound spring is sleeved on the guide rod of the upper half lower die, and then the guide rod is passed through the guide hole on the upper die assembly and is fixed with nut;

[0009] Step three: the diameter of the pipe to be processed is determined, the relative position of the adjusting block and the upper half lower die and the lower half lower die is adjusted, the height of the slot formed by the first processing piece insertion slot and the second processing piece insertion slot is matched with the diameter of the pipe to be processed;

[0010] Step four: the bolt is passed through the upper half lower die and the lower half lower die at the same time and is fixed on the punch table surface;

[0011] Step five: the swing table base assembly is fixed to the punch table surface through bolt, then the processing piece fastening assembly is moved to the appropriate position on the adjusting plate according to the length of the pipe to be processed, and the processing piece fastening assembly and the swing table base assembly are fastened through bolt;

[0012] Step six: the pipe to be processed is placed on the swing table assembly, and then the adjusting knob is rotated until the top plate presses the pipe to be processed;

[0013] Step seven: the punch is started and the punch ram is controlled to carry out the stamping work;

[0014] Step eight: the adjusting knob is rotated to be loose, the pipe is taken out, and the whole work process is completed.

[0015] When the present application works, the punch is fixed to the punch fixed base through screw, and the upper die assembly is fixed to the punch ram of the punch through bolt; the rebound spring is sleeved on the guide rod of the upper half lower die, and then the guide rod is passed through the guide hole on the upper die assembly and is fixed with nut; the diameter of the pipe to be processed is determined, the relative position of the adjusting block and the upper half lower die and the lower half lower die is adjusted, the height of the slot formed by the first processing piece insertion slot and the second processing piece insertion slot is matched with the diameter of the pipe to be processed; the bolt is passed through the upper half lower die and the lower half lower die at the same time and is fixed on the punch table surface; the swing table base assembly is fixed to the punch table surface through bolt, then the processing piece fastening assembly is moved to the appropriate position on the adjusting plate according to the length of the pipe to be processed, and the processing piece fastening assembly and the swing table base assembly are fastened through bolt; the pipe to be processed is placed on the swing table assembly, and then the adjusting knob is rotated until the top plate presses the pipe to be processed; the punch is started and the punch ram is controlled to carry out the stamping work; the adjusting knob is rotated to be loose, the pipe is taken out, and the whole work process is completed.

[0016] The beneficial effects of this invention are that it provides a working method for a symmetrical punching die for a foil tube shaft. This method can effectively ensure the symmetry of the notches on both sides of the punched tube, and the punch can be replaced, greatly reducing die wear costs. In addition, this die can adapt to tubes of different diameters and lengths, and its application range is wider.

[0017] Furthermore, the upper die punch block is rectangular in shape, and the two punch fixing bases are arranged vertically aligned, with a bolt through hole in the middle of the two punch fixing bases.

[0018] Furthermore, the upper half of the lower mold is in the shape of a horizontal cuboid, and the two first positioning rack groups are symmetrical along the vertical center line of the upper half of the lower mold. The height of the first positioning rack groups gradually increases from the vertical center line of the upper half of the lower mold to the side. The first workpiece insertion slot is semi-circular, the workpiece support block is semi-circular, and the outer diameter of the workpiece support block is smaller than the inner diameter of the first workpiece insertion slot. The upper ends of the two guide rods are provided with external threads, and threaded through holes are also provided on both sides of the upper surface of the upper half of the lower mold.

[0019] The lower half of the mold is in the shape of a horizontal cuboid. The two second positioning rack groups are symmetrical along the vertical center line of the lower half of the mold. The height of the second positioning rack groups gradually decreases from the vertical center line of the lower half of the mold to the side. The second workpiece insertion slot is semi-circular, and the inner diameter of the second workpiece insertion slot is equal to the inner diameter of the first workpiece insertion slot. Threaded through holes are also provided on both sides of the upper surface of the lower half of the mold.

[0020] The adjusting block is the same width as the upper half of the lower mold, and its cross-section is a horizontal trapezoid. The third positioning rack group meshes with the first positioning rack group, and the number of racks in the third positioning rack group is less than the number of racks in the first positioning rack group. A fourth positioning rack group extends from the lower surface of the adjusting block, and the fourth positioning rack group meshes with the second positioning rack group, and the number of racks in the fourth positioning rack group is less than the number of racks in the second positioning rack group.

[0021] Furthermore, the upper surface of the sliding base plate is provided with two threaded through holes. After the bolt passes through the threaded through holes and the elongated hole, the machining part fastening assembly is fastened to the swing table base assembly.

[0022] Furthermore, the guide rod passes through the guide hole and is limited by a nut at its upper end, and the upper mold assembly and the lower mold assembly are assembled in a sliding connection manner. Attached Figure Description

[0023] Figure 1 This is a three-dimensional structural view of a working method for a symmetrical punching die for a foil collecting tube shaft provided in an embodiment of the present invention;

[0024] Figure 2 A structure perspective view of the upper die assembly in the working method of the foil tube shaft core symmetrical punching die provided by the embodiment of the present application;

[0025] Figure 3 A structure perspective view of the lower die assembly in the working method of the foil tube shaft core symmetrical punching die provided by the embodiment of the present application;

[0026] Figure 4 A structure perspective exploded view (partly sectioned) of the lower die assembly in the working method of the foil tube shaft core symmetrical punching die provided by the embodiment of the present application;

[0027] Figure 5 A structure perspective view of the swing table assembly in the working method of the foil tube shaft core symmetrical punching die provided by the embodiment of the present application;

[0028] Figure 6 A structure perspective view of the swing table base assembly in the working method of the foil tube shaft core symmetrical punching die provided by the embodiment of the present application;

[0029] Figure 7 A structure perspective view of the workpiece fastening assembly in the working method of the foil tube shaft core symmetrical punching die provided by the embodiment of the present application;

[0030] In the figure: 100, punching die assembly; 110, upper die assembly; 1101, upper die block; 1102, punch fixed base; 1103, punch; 1104, upper die fixed block; 1105, upper die guide block; 1106, guide hole; 120, lower die assembly; 1201, upper half lower die; 120101, first positioning rack set; 120102, first upper die punching; 120103, first workpiece insertion slot; 120104, workpiece support block; 120105, guide rod; 1202, lower half lower die; 120201, second positioning rack set; 120202, second upper die punching; 120203, second workpiece insertion slot; 1203, adjusting block; 120301, third positioning rack set; 120302, fourth positioning rack set; 130, rebound spring; 200, swing table assembly; 210, swing table base assembly; 2101, fixed plate; 2102, adjusting plate; 2103, elongated hole; 2104, workpiece support plate; 220, workpiece fastening assembly; 2201, sliding bottom plate; 2202, base; 2203, adjusting knob; 2204, threaded rod; 2205, top plate. DETAILED DESCRIPTION

[0031] The present application will be further described below in conjunction with the drawings. The following embodiments are only used to more clearly illustrate the technical solutions of the present application, and cannot be used to limit the protection scope of the present application.

[0032] In the description of the present application, it is to be understood that the orientations or positional relationships indicated by the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second" and the like are only for the purpose of description and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" and the like can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise specified.

[0033] In the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounting", "connecting", "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integral connection; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through intermediate medium, or the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0034] The working method of the foil collecting pipe shaft core symmetrical punching die provided by the embodiment of the application comprises a die body, the die body comprises a punching die assembly 100 mounted on a punch and a workbench assembly 200 for placing a round pipe workpiece mounted on the punch, the punching die assembly 100 comprises an upper die assembly 110 and a lower die assembly 120 and a rebound spring 130, and the workbench assembly 200 comprises a workbench base assembly 210 and a workpiece fastening assembly 220; the upper die assembly 110 comprises an upper die block 1101, two punch fixed bases 1102 aligned in the upper and lower directions extend from the side surface of the upper die block 1101, bolt through holes are formed in the middle of the two punch fixed bases 1102, a punch 1103 is fixed by threads below the punch fixed bases 1102 through the bolt through holes, an upper die guide block 1105 extends from the upper surface of the upper die block 1101, guide holes 1106 are formed in the two sides of the upper die guide block 1105, and an upper die fixed block 1104 extends from the upper surface of the upper die guide block 1105; the lower die assembly 120 comprises an upper half lower die 1201 and a lower half lower die 1202, and further comprises two adjusting blocks 1203 clamped in the middle of the upper half lower die 1201 and the lower half lower die 1202; the upper half lower die 1201 comprises a first positioning rack set 120101, a first upper die punch 120102, a first workpiece insertion groove 120103, a workpiece support block 120104 and a guide rod 120105; the lower half lower die 1202 comprises a second positioning rack set 120201, a second upper die punch 120202 and a second workpiece insertion groove 120203; the adjusting block 1203 comprises a third positioning rack set 120301 and a fourth positioning rack set 120302; the workbench base assembly 210 comprises a fixed plate 2101, a workpiece support plate 2104, an adjusting plate 2102 and an elongated hole 2103; the workpiece fastening assembly 220 comprises a sliding bottom plate 2201, a workpiece support plate 2104, a base 2202, an adjusting knob 2203, a threaded rod 2204 fixed to the front end of the adjusting knob 2203, and a top plate 2205 fastened to the front end of the threaded rod 2204 through double nuts; and the working method comprises the following steps

[0035] Step one: the punch 1103 is fixed to the punch fixed base 1102 through a screw, and the upper die assembly 110 is fixed to the punch ram of the punch through a bolt;

[0036] Step two: the rebound spring 130 is sleeved on the guide rod 120105 of the upper half lower die 1201, then the guide rod 120105 is passed through the guide hole 1106 of the upper die assembly 110 and is fixed by a nut;

[0037] Step three: determine the diameter of the pipe to be processed, adjust the relative position of the adjusting block 1203 and the upper half lower die 1201 and the lower half lower die 1202, so that the height of the slot formed by the first processing piece insertion slot 120103 and the second processing piece insertion slot 120203 matches the diameter of the pipe to be processed;

[0038] Step four: use bolts to pass through the upper half lower die 1201 and the lower half lower die 1202 at the same time and fix them on the punch bed surface;

[0039] Step five: bolt the swing table base assembly 210 to the punch bed surface, then move the processing piece fastening assembly 220 to the appropriate position on the adjusting plate 2102 according to the length of the pipe to be processed, and fasten the processing piece fastening assembly 220 with the swing table base assembly 210 by bolts;

[0040] Step six: place the pipe to be processed on the swing table assembly 200, then rotate the adjusting knob 2203 until the top plate 2205 presses the pipe to be processed tightly;

[0041] Step seven: start the punch and control the punch rod to perform the stamping operation;

[0042] Step eight: rotate the adjusting knob 2203 to loosen it, take out the pipe, and the whole operation is completed.

[0043] The upper die block 1101 is in the shape of a rectangular parallelepiped, and the two punch fixed bases 1102 are arranged in vertical alignment. The two punch fixed bases 1102 are provided with bolt through holes in the middle.

[0044] The upper half lower die 1201 is in the shape of a horizontal rectangular parallelepiped. The two first positioning rack groups 120101 are symmetrically arranged along the vertical center line of the upper half lower die 1201. The height of the first positioning rack group 120101 gradually increases from the vertical center line of the upper half lower die 1201 to the side surface. The first processing piece insertion slot 120103 is in the shape of a semicircle. The processing piece support block 120104 is also in the shape of a semicircle, and the outer diameter of the processing piece support block 120104 is smaller than the inner diameter of the first processing piece insertion slot 120103. The two guide rods 120105 are provided with external threads at the upper end, and threaded holes are also provided on both sides of the upper surface of the upper half lower die 1201.

[0045] The lower half lower die 1202 is in the shape of a horizontal rectangular parallelepiped. The two second positioning rack groups 120201 are symmetrically arranged along the vertical center line of the lower half lower die 1202. The height of the second positioning rack group 120201 gradually decreases from the vertical center line of the lower half lower die 1202 to the side surface. The second processing piece insertion slot 120203 is in the shape of a semicircle, and the inner diameter of the second processing piece insertion slot 120203 is equal to that of the first processing piece insertion slot 120103. Threaded holes are also provided on both sides of the upper surface of the lower half lower die 1202.

[0046] The adjusting block 1203 is equal in width with the upper half lower mold 1201, the section thereof is a horizontal trapezoid, the third positioning rack set 120301 is engaged with the first positioning rack set 120101, and the number of racks of the third positioning rack set 120301 is less than that of the first positioning rack set 120101, the lower surface of the adjusting block 1203 extends the fourth positioning rack set 120302, and the fourth positioning rack set 120302 is engaged with the second positioning rack set 120201, and the number of racks of the fourth positioning rack set 120302 is less than that of the second positioning rack set 120201.

[0047] The upper surface of the sliding bottom plate 2201 is also provided with two threaded through holes, and the bolts fasten the machining assembly 220 and the swing table base assembly 210 after penetrating through the threaded through holes and the elongated hole 2103.

[0048] The guide rod 120105 penetrates through the guide hole 1106, and the upper end of the guide rod 120105 is limited by a nut to slideably connect the upper mold assembly 110 and the lower mold assembly 120.

[0049] The above only describes the preferred embodiments of the present application, and it should be noted that those skilled in the art can make several improvements and modifications without departing from the technical principles of the present application, and these improvements and modifications should also be considered as the protection scope of the present application.

Claims

1. A working method of a foil collecting pipe shaft core symmetrical punching die, comprising a die body, the die body comprising a punching die assembly (100) mounted on a punch and a workbench assembly (200) for placing a circular pipe workpiece mounted on the punch, the punching die assembly (100) comprising an upper die assembly (110) and a lower die assembly (120) and a rebound spring (130), and the workbench assembly (200) comprising a workbench base assembly (210) and a workpiece fastening assembly (220); the upper die assembly (110) comprises an upper die block (1101), two punch fixed bases (1102) aligned in upper and lower sides of the upper die block (1101) are extended, bolt through holes are formed in the middle of the two punch fixed bases (1102), punch heads (1103) are fixed by bolts passing through the bolt through holes and screwed below the punch fixed bases (1102), an upper die guide block (1105) is extended on the upper surface of the upper die block (1101), guide holes (1106) are formed on both sides of the upper die guide block (1105), and an upper die fixed block (1104) is extended on the upper surface of the upper die guide block (1105); the lower die assembly (120) comprises an upper half lower die (1201) and a lower half lower die (1202), and further comprises two adjusting blocks (1203) clamped in the middle of the upper half lower die (1201) and the lower half lower die (1202); the upper half lower die (1201) comprises a first positioning rack group (120101), a first upper die punching port (120102), a first workpiece insertion slot (120103), a workpiece support block (120104), and a guide rod (120105); the lower half lower die (1202) comprises a second positioning rack group (120201), a second upper die punching port (120202), and a second workpiece insertion slot (120203); the adjusting block (1203) comprises a third positioning rack group (120301) and a fourth positioning rack group (120302); the workbench base assembly (210) comprises a fixed plate (2101), a workpiece support plate (2104), an adjusting plate (2102), and an elongated hole (2103); the workpiece fastening assembly (220) comprises a sliding bottom plate (2201), a workpiece support plate (2104), a base (2202), and an adjusting knob (2203), a threaded rod (2204) is fixed at the front end of the adjusting knob (2203), and a top plate (2205) is fastened to the front end of the threaded rod (2204) by double nuts; characterized in that, Comprising Step one: the punch (1103) is fixed to the punch fixed base (1102) by screw, and the upper die assembly (110) is fixed to the punch ram by bolt; Step two: the rebound spring (130) is sleeved on the guide rod (120105) on the upper half lower die (1201), then the guide rod (120105) is passed through the guide hole (1106) on the upper die assembly (110) and is fixed with nut; Step three: determine the diameter of the pipe to be processed, adjust the relative position of the adjusting block (1203) and the upper half lower die (1201) and the lower half lower die (1202), so that the height of the slot formed by the first processing piece insertion groove (120103) and the second processing piece insertion groove (120203) matches the diameter of the pipe to be processed; Step four: use bolt to pass through upper half lower die (1201) and lower half lower die (1202) at the same time and fix it on the punch table surface; Step five: the swing table base assembly (210) is fixed to the punch table surface by bolt, then according to the length of the pipe to be processed, the processing piece fastening assembly (220) is moved to the appropriate position on the adjusting plate (2102), and the processing piece fastening assembly (220) is fastened with the swing table base assembly (210) by bolt; Step six: put the pipe to be processed on the swing table assembly (200), then rotate the adjusting knob (2203) until the top plate (2205) presses the pipe to be processed; Step seven: start the punch and control the punch ram to carry out stamping work; Step eight: rotate the adjusting knob (2203) to loosen it, take out the pipe, and the whole operation process is completed.

2. The working method of the foil collecting pipe shaft core symmetric punching die according to claim 1, characterized in that: the upper die block (1101) is in the shape of a cuboid, the two punch fixed bases (1102) are arranged in vertical alignment, and bolt through holes are formed in the middle of the two punch fixed bases (1102).

3. The working method of the foil collecting pipe shaft core symmetric punching die according to claim 1, characterized in that: the upper half lower die (1201) is in the shape of a horizontal cuboid, the two first positioning rack groups (120101) are symmetric along the vertical center line of the upper half lower die (1201), the height of the first positioning rack group (120101) gradually increases from the vertical center line of the upper half lower die (1201) to the side surface, the first processing piece insertion groove (120103) is in the shape of a semicircle, the processing piece support block (120104) is also in the shape of a semicircle, and the outer diameter of the processing piece support block (120104) is smaller than the inner diameter of the first processing piece insertion groove (120103), the two guide rods (120105) are provided with external threads at the upper end, and threaded holes are also formed in the upper surface of the upper half lower die (1201) on both sides. The lower half lower die (1202) is in horizontal cuboid shape, two second positioning rack groups (120201) are symmetric along the vertical center line of the lower half lower die (1202), the height of the second positioning rack group (120201) gradually decreases from the vertical center line of the lower half lower die (1202) to the side, the second machining part insertion groove (120203) is semicircular, and the inner diameter of the second machining part insertion groove (120203) is equal to the inner diameter of the first machining part insertion groove (120103), and threaded holes are further formed on both sides of the upper surface of the lower half lower die (1202); The adjusting block (1203) is equal in width to the upper half lower die (1201), the cross section is in horizontal trapezoidal shape, the third positioning rack group (120301) is engaged with the first positioning rack group (120101), and the number of rack teeth of the third positioning rack group (120301) is less than that of the first positioning rack group (120101), the lower surface of the adjusting block (1203) extends a fourth positioning rack group (120302), and the fourth positioning rack group (120302) is engaged with the second positioning rack group (120201), and the number of rack teeth of the fourth positioning rack group (120302) is less than that of the second positioning rack group (120201).

4. The working method of the foil collecting pipe shaft core symmetric punch opening die according to claim 1, wherein: Two threaded holes are further formed on the upper surface of the sliding bottom plate (2201), and the machining part fastening assembly (220) is fastened with the swing table base assembly (210) after the threaded holes and the elongated hole (2103) are passed through by bolts.

5. The working method of the foil collecting pipe shaft core symmetric punch opening die according to claim 1, wherein: The guide rod (120105) passes through the guide hole (1106), and the upper end of the guide rod (120105) is limited by a nut after being assembled in a sliding connection mode with the upper die assembly (110) and the lower die assembly (120).

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