Production mold for intelligent machining of metal energy-saving pipe and using method of production mold

Abstract

The invention relates to the technical field of mold sets for metal pipe fitting machining, and provides a production mold for metal energy-saving pipe intelligent machining and a using method thereof.The production mold comprises a first split mold, a sliding column, a second split mold and two third split molds; the first clamping groove, the second clamping groove and the third clamping groove define a cavity with a circular cross section, and the radians corresponding to the peripheral sides of the first clamping groove, the second clamping groove and the third clamping groove are all smaller than pi. According to the stamping die, the two third split dies which are symmetrically arranged are arranged between the first split die and the second split die, the distance between the two third split dies is adjustable, and the radians corresponding to the peripheral sides of the first clamping groove, the second clamping groove and the third clamping groove are all smaller than pi, so that a stamped metal pipe fitting can be prevented from being clamped in one clamping groove, and the stamping efficiency is improved. And the metal pipe fitting can be conveniently fixed, so that the stamping efficiency of the metal pipe fitting is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of die sets for metal pipe processing, and in particular to a production die for intelligent processing of metal energy-saving pipes and a use method thereof. Background Art

[0002] In the field of heat exchange, metal pipe fittings are widely used. In order to meet the energy-saving needs of metal pipe fittings, different types of stamping processes are required for metal pipe fittings. This stamping process is usually achieved through a die set, which has good characteristics such as high production efficiency, good product quality and easy intelligent control.

[0003] The invention patent with publication number CN103464597A discloses a split bottom mold, which is composed of a convex bottom mold and a concave bottom mold. The convex bottom mold includes: a first bottom mold and a protrusion, and the concave bottom mold includes: a groove and a second bottom mold. The first bottom mold is provided with a protrusion on the right side, and the second bottom mold is provided with a groove on the left side. The first bottom mold is centrally symmetrical with the second bottom mold. This invention is not only convenient and quick to process, but also more convenient and accurate in matching the split molds, which greatly improves the work efficiency of the entire mold production process.

[0004] In the above technical solution, in order to facilitate the fixation of the workpiece, the bottom die is set to include a first bottom die and a second bottom die, and the disassembly and assembly operations of the workpiece are realized by controlling the opening and closing of the first bottom die and the second bottom die; when stamping a metal pipe fitting with a circular cross-section, in order to facilitate the clamping of the metal pipe fitting, it is usually necessary to set the groove to have a semicircular cross-section. However, affected by the processing accuracy, the inner diameter of the groove needs to be slightly smaller than the outer diameter of the metal pipe fitting. When the metal pipe fitting is being stamped, its circumference will undergo a certain degree of deformation, causing the metal pipe fitting to be stuck in one of the grooves, which is not conducive to improving the stamping efficiency of the metal pipe fitting. Summary of the invention

[0005] In view of this, the present invention proposes a production mold for intelligent processing of metal energy-saving pipes and a method of using the same, which can prevent the metal pipe fittings from being stuck in one of the clamping grooves after stamping, thereby improving the stamping efficiency of the metal pipe fittings.

[0006] The technical solution of the present invention is implemented as follows: On the one hand, the present invention provides a production mold for intelligent processing of metal energy-saving pipes, including a first parting mold, a sliding column, a second parting mold and two third parting molds, wherein:

[0007] A first clamping groove is provided on the peripheral side of the first split mold;

[0008] The sliding column is fixedly arranged on the first parting mold;

[0009] The second split mold is slidably disposed on the slide column, and a second clamping groove is opened on the peripheral side thereof;

[0010] The third mold is slidably arranged on the second mold, the two third molds are symmetrically arranged about the center line of the first clamping groove, and the distance between the two third molds is adjustable. A third clamping groove is opened on the peripheral side of the third mold. When the third mold is abutted and arranged between the first mold and the second mold, the first clamping groove, the second clamping groove and the third clamping groove enclose a cavity with a circular cross-section, and the radians corresponding to the peripheral sides of the first clamping groove, the second clamping groove and the third clamping groove are all less than π.

[0011] On the basis of the above technical solution, preferably, a mounting groove is provided on the second sub-mold, and the third sub-mold is slidably arranged in the mounting groove;

[0012] When the third parting mold is located in the installation groove, a side of the third parting mold close to the first parting mold is flush with a side of the second parting mold close to the first parting mold;

[0013] When a portion of the third sub-mold extends out of the mounting groove, the distance between the two third sub-molds increases.

[0014] More preferably, a limiting groove is provided in the installation groove;

[0015] The third split mold includes a mold body and a limit block, wherein:

[0016] The mold body is slidably arranged in the mounting groove, and the third clamping groove is provided on the mold body;

[0017] The limit block is fixed on the mold body and slidably set in the limit groove. When the limit block is slidably set in the limit groove close to one end of the first parting mold, the distance between the two mold bodies is not less than the diameter of the cavity enclosed by the first clamping groove, the second clamping groove and the third clamping groove.

[0018] More preferably, it further comprises a mold opening spring, a fixing groove is formed on the mold body, the mold opening spring is fixedly arranged in the fixing groove, and one end of the mold opening spring is abutted against the second parting mold.

[0019] On the basis of the above technical solution, preferably, the second parting mold includes a sliding mold, a movable mold and a driving block, and the second clamping groove includes a sliding groove and a movable groove, wherein:

[0020] There are four sliding posts, the sliding mold is slidingly arranged on two of the sliding posts, and a driving groove is opened on the sliding mold, and the sliding groove is opened on the sliding mold;

[0021] The movable mold is slidably arranged on the other two sliding posts, and the two third split molds are respectively connected to the movable mold and the sliding mold, the movable groove is arranged on the movable mold, and the arc corresponding to the peripheral side of the sliding groove is greater than the arc corresponding to the peripheral side of the third clamping groove, and smaller than the arc corresponding to the peripheral side of the movable groove, and the sum of the arc corresponding to the peripheral side of the movable groove and the arc corresponding to the peripheral side of the third clamping groove is less than π;

[0022] The driving block is fixedly arranged on the movable mold and slidably arranged in the driving groove.

[0023] More preferably, two oblong holes are provided in the movable mold, the length direction of the cross section of the oblong hole is parallel to the axial direction of the cavity enclosed by the first clamping groove, the second clamping groove and the third clamping groove, and the two sliding posts connected to the movable mold are slidably disposed in the two oblong holes respectively;

[0024] The inner diameter of the driving groove gradually decreases along the direction from the second parting mold to the first parting mold, and the inner diameter of the driving groove at one end close to the first parting mold is equal to the outer diameter of the driving block.

[0025] More preferably, the second parting mold further includes a top screw, a supporting block and a compression spring, wherein:

[0026] The movable mold is provided with a connecting hole, and the top screw is connected in the connecting hole through threaded fitting;

[0027] The abutment block is slidably disposed in the connection hole and abuts against the top side of one of the sliding posts;

[0028] The extrusion spring is disposed between the top wire and the abutting block.

[0029] More preferably, the second parting mold further comprises a fixed seat, the fixed seat is slidably disposed on the movable mold, and a sliding direction thereof is parallel to a length direction of the cross section of the oblong hole.

[0030] On the basis of the above technical solution, preferably, it further includes a guide column and an extrusion die, wherein:

[0031] The guide column is fixedly arranged on the first parting mold, and its axial direction is perpendicular to the axial direction of the sliding column;

[0032] The extrusion die is slidably arranged on the guide pillar.

[0033] In a second aspect, the present invention provides a method for using a production mold for intelligent processing of metal energy-saving pipes, comprising the following steps:

[0034] S1, fixing the first sub-mold on a work surface, and fixing the second sub-mold and the extrusion mold to output ends of two telescopic driving devices respectively;

[0035] S2, controlling the second parting die and the extrusion die to move away from the first parting die, and fixing the metal pipe in the first clamping groove;

[0036] S3, controlling the second split mold to approach the first split mold, so that the side wall of the metal pipe is in contact with the first clamping groove, the second clamping groove and the third clamping groove;

[0037] S4, controlling the extrusion die to approach the first split die to punch the metal pipe;

[0038] S5, controlling the extrusion die and the second parting die to move away from the first parting die, and taking out the stamped metal pipe.

[0039] The production mold for intelligent processing of metal energy-saving pipes and the use method thereof of the present invention have the following beneficial effects compared with the prior art:

[0040] (1) By arranging two symmetrically arranged third split dies between the first split die and the second split die, the spacing between the two third split dies is adjustable, and the arcs corresponding to the peripheries of the first clamping groove, the second clamping groove and the third clamping groove are all smaller than π, which can not only prevent the metal pipe fitting from being stuck in one of the clamping grooves after stamping, but also facilitate the fixing of the metal pipe fitting, thereby improving the stamping efficiency of the metal pipe fitting;

[0041] (2) By configuring the second split mold to include a sliding mold and a movable mold, and arranging a driving block between the two, the second split mold can be separated from the metal pipe in sections, further preventing the metal pipe from being stuck with the device after stamping;

[0042] (3) By providing an oblong hole, a top screw, a supporting block and an extrusion spring, and utilizing the cooperation between the movable mold and the sliding mold, the movable mold can be moved longitudinally when moving away from or close to the first parting mold, thereby improving the fixing firmness and disassembly convenience of the metal pipe fitting. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0044] Figure 1 A stereoscopic diagram of a production mold for intelligent processing of metal energy-saving pipes and a method for using the same according to the present invention;

[0045] Figure 2 It is a top view of a production mold for intelligent processing of metal energy-saving pipes and a method for using the same according to the present invention, in a state where the second mold splitting is close to the first mold splitting;

[0046] Figure 3 It is a top view of a production mold for intelligent processing of metal energy-saving pipes and a method for using the same according to the present invention, in a state where the second parting mold abuts against the first parting mold;

[0047] Figure 4 It is a top view of a production mold for intelligent processing of metal energy-saving pipes and a method for using the same according to the present invention, in a second mold splitting state away from the first mold splitting state;

[0048] Figure 5 It is a side view of a production mold for intelligent processing of metal energy-saving pipes and a method for using the same according to the present invention in a second mold splitting state away from the first mold splitting state;

[0049] Figure 6 It is a side view of a production mold for intelligent processing of metal energy-saving pipes and a method for using the same according to the present invention, in a state where the second mold splitting is close to the first mold splitting;

[0050] Figure 7 A three-dimensional diagram of a sliding mold and a third parting mold in a production mold for intelligent processing of a metal energy-saving pipe and a method for using the same according to the present invention;

[0051] Figure 8 It is a stereoscopic view of the sliding mold in a production mold for intelligent processing of metal energy-saving pipes and a method for using the same according to the present invention;

[0052] Fig. 9 It is a three-dimensional diagram of the third mold splitting position in a production mold for intelligent processing of metal energy-saving pipes and a method for using the same according to the present invention;

[0053] Fig.10 A stereoscopic diagram of a movable mold and a third sub-mold in a production mold for intelligent processing of metal energy-saving pipes and a method for using the same according to the present invention;

[0054] Fig.11 It is a cross-sectional view of a driving block in a production mold for intelligent processing of metal energy-saving pipes and a method for using the same according to the present invention;

[0055] Fig.12 It is a cross-sectional view of the top screw in a production mold for intelligent processing of metal energy-saving pipes and a method for using the same according to the present invention.

[0056] Among them: 1. first parting mold; 101. first clamping groove; 2. sliding column; 3. second parting mold; 31. sliding mold; 32. movable mold; 33. driving block; 34. top screw; 35. holding block; 36. extrusion spring; 37. fixing seat; 301. second clamping groove; 3011. sliding groove; 3012. movable groove; 302. installation groove; 303. limiting groove; 304. driving groove; 305. oblong hole; 306. connecting hole; 4. third parting mold; 41. mold body; 42. limiting block; 401. third clamping groove; 402. fixing groove; 5. mold opening spring; 6. guide column; 7. extrusion mold. DETAILED DESCRIPTION

[0057] The following will be combined with the specific implementation of the present invention to clearly and completely describe the technical solution in the present invention. Obviously, the described implementation is only a part of the implementation of the present invention, not all of the implementation. Based on the implementation of the present invention, all other implementations obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0058] like Figure 1-12 As shown, a production mold for intelligent processing of metal energy-saving pipes of the present invention includes a first parting mold 1, a sliding column 2, a second parting mold 3, two third parting molds 4, a mold opening spring 5, a guide column 6 and an extrusion mold 7, which is used for stamping metal pipe fittings.

[0059] like Figure 1 As shown, the first parting mold 1, the second parting mold 3 and the third parting mold 4 are the bottom molds of the production mold, the first parting mold 1 is provided with a first clamping groove 101 on the circumferential side, the second parting mold 3 is provided with a second clamping groove 301 on the circumferential side, and the third parting mold 4 is provided with a third clamping groove 401 on the circumferential side. The first clamping groove 101, the second clamping groove 301 and the third clamping groove 401 are used to clamp and fix the metal pipe fittings, the guide column 6 is fixedly arranged on the first parting mold 1, and the extrusion mold 7 is slidably arranged on the guide column 6. The sliding of the extrusion mold 7 on the sliding column 2 drives the extrusion mold 7 to perform stamping processing on the end of the metal pipe fitting fixed on the bottom mold.

[0060] The slide column 2 is fixedly set on the first parting mold 1, and the axial direction of the slide column 2 is perpendicular to the axial direction of the guide column 6. The second parting mold 3 is slidably set on the slide column 2, and the third parting mold 4 is slidably set on the second parting mold 3. The first parting mold 1, the second parting mold 3 and the third parting mold 4 form a split structure, which can facilitate the disassembly and assembly of metal pipe fittings to improve the convenience of disassembly and assembly of metal pipe fittings.

[0061] When processing a metal pipe with a circular cross-section, in order to avoid the influence of the processing error of the metal pipe and the processing error of the mold on the fixing firmness of the metal pipe, it is necessary to slightly reduce the inner diameters of the first clamping groove 101, the second clamping groove 301 and the third clamping groove 401, which will cause the metal pipe to deform when being clamped, so that the metal pipe after stamping is stuck on one of the parting molds; in order to avoid the occurrence of the above-mentioned problem, the two third parting molds 4 are symmetrically arranged about the center line of the first clamping groove 101, so that the third parting molds 4 can be moved in the direction close to or away from the center line of the first clamping groove 101, and the spacing between the two third parting molds 4 is adjustable. At the same time, the arcs corresponding to the peripheral sides of the first clamping groove 101, the second clamping groove 301 and the third clamping groove 401 are all less than π, such as Figure 3 As shown, when the third sub-mold 4 is disposed between the first sub-mold 1 and the second sub-mold 3, the first clamping groove 101, the second clamping groove 301 and the third clamping groove 401 enclose a cavity with a circular cross-section to hold and fix the circumference of the metal pipe. Figure 2 As shown, when the second parting mold 3 is away from the first parting mold 1, the third parting mold 4 is moved to increase the distance between the two third parting molds 4, thereby preventing the first clamping groove 101, the second clamping groove 301 or the third clamping groove 401 from clamping the relative position of the peripheral side of the metal pipe fitting, and preventing the metal pipe fitting deformed after stamping from being clamped with one of the clamping grooves, thereby improving the convenience of disassembly and assembly of the metal pipe fitting.

[0062] Since the angle corresponding to the side of the first clamping groove 101 is less than 180°, the sum of the angles corresponding to the sides of the second clamping groove 301 and the third clamping groove 401 is greater than 180°. Since the third parting mold 4 can move in a direction close to or away from the center line of the first clamping groove 101, during the movement of the second parting mold 3, the third parting mold 4 can be moved to avoid the metal pipe placed in the first clamping groove 101.

[0063] like Figure 2 As shown, the second parting mold 3 is provided with a mounting groove 302, and the third parting mold 4 is slidably arranged in the mounting groove 302. The side of the third parting mold 4 opposite to the third clamping groove 401 is an inclined surface, and this inclined surface on the third parting mold 4 is slidably connected to the inner wall of the mounting groove 302, and the surface in the mounting groove 302 connected to the third parting mold 4 is also an inclined surface. When the third parting mold 4 slides in the mounting groove 302, it can not only move in the direction close to or away from the center line of the first clamping groove 101, but also move in the direction close to or away from the second parting mold 3, so as to speed up the separation efficiency of the second clamping groove 301 and the third clamping groove 401, so that the metal pipe can quickly detach from each clamping groove; as shown in FIG. Figure 8 and Fig. 9 As shown, it is preferred that the third parting mold 4 and the mounting groove 302 slide via a dovetail groove to improve the sliding stability.

[0064] like Figure 2 As shown, when part of the third split mold 4 extends out of the mounting groove 302, the distance between the two third split molds 4 increases, that is, during the fixing or removal process of the metal pipe, the third split mold 4 moves a distance in the direction away from the axis of the metal pipe, which not only allows the third split mold 4 to avoid the metal pipe in the first clamping groove 101 during the movement of the second split mold 3, but also allows the third split mold 4 to be away from the second split mold 3; Figure 3 As shown, when the second mold 3 is pressed against the first mold 1, the third mold 4 is located in the mounting groove 302, and the side of the third mold 4 close to the first mold 1 is flush with the side of the second mold 3 close to the first mold 1, and the third mold 4 and the second mold 3 are both pressed against the first mold 1, so that the first mold 1, the second mold 3 and the third mold 4 can be pressed against the circumferential side of the metal pipe to provide a stable clamping force for the metal pipe.

[0065] For the driving of the mold, the use of driving devices should be minimized. The first sub-mold 1 in the present invention is fixedly connected to the working table of the stamping equipment, the extrusion mold 7 and the second sub-mold 3 can be driven by a driving device respectively, and the third sub-mold 4 can be driven by the second sub-mold 3. Figure 2 As shown, when the second mold 3 is away from the first mold 1, in order to prevent the third mold 4 from separating from the second mold 3, the third mold 4 is configured to include a mold body 41 and a limit block 42, the mold body 41 is slidably set in the installation groove 302, the third clamping groove 401 is opened on the mold body 41, the limit block 42 is fixedly set on the mold body 41, and a limit groove 303 is opened in the installation groove 302, so that the limit block 42 is slidably set in the limit groove 303, when the limit block 42 is slidably set in the limit groove 303 close to one end of the first mold 1, the distance between the two mold bodies 41 is not less than the diameter of the cavity enclosed by the first clamping groove 101, the second clamping groove 301 and the third clamping groove 401, that is, at this time, the distance between the two mold bodies 41 is greater than the diameter of the metal pipe, thereby ensuring the effect of the third mold 4 avoiding the metal pipe; wherein, the distance between the two mold bodies 41 refers to the minimum distance between the two mold bodies 41.

[0066] The second split mold 3 includes a sliding mold 31, a movable mold 32, a driving block 33, a top screw 34, a holding block 35, an extrusion spring 36 and a fixed seat 37. The second clamping groove 301 includes a sliding groove 3011 and a movable groove 3012. There are four sliding posts 2. The sliding mold 31 is slidably arranged on two of the sliding posts 2, and the movable mold 32 is slidably arranged on the other two sliding posts 2. The sliding groove 3011 is opened on the sliding mold 31, and the movable groove 3012 is opened on the movable mold 32. The third split mold 4 is connected to the movable mold 32 and the sliding mold 31 respectively, the curvature corresponding to the peripheral side of the sliding groove 3011 is greater than the curvature corresponding to the peripheral side of the third clamping groove 401, and smaller than the curvature corresponding to the peripheral side of the movable groove 3012, and the sum of the curvature corresponding to the peripheral side of the movable groove 3012 and the curvature corresponding to the peripheral side of the third clamping groove 401 is less than π. The second split mold 3 is set as a split structure, which can further prevent the metal pipe fittings with deformed peripheral sides after stamping from being stuck in any clamping groove.

[0067] like Figure 7 , Fig.10 and Fig.11 As shown, a driving groove 304 is provided on the sliding mold 31, and a driving block 33 is fixedly arranged on the movable mold 32 and slidably arranged in the driving groove 304, that is, the length of the driving groove 304 along the axial direction of the sliding column 2 is greater than the length of the driving block 33 along the axial direction of the sliding column 2, as shown in FIG. Figure 4 As shown in FIG. 1 , when the movable mold 32 moves to the left, the movable mold 32 will first independently move a distance until it moves to the position shown in FIG. Figure 2 As shown in FIG. 1 , the position flush with the sliding mold 31 is finally Figure 3 As shown, the movable mold 32 and the sliding mold 31 are pressed against the first parting mold 1; Figure 3 As shown, when the movable mold 32 is moved to the right, as shown in Figure 4 As shown, the movable mold 32 will first move to the right for a distance on its own, and then drive the sliding mold 31 to move synchronously; during the fixing process of the metal pipe fitting, the movable mold 32 and the sliding mold 31 clamp the metal pipe fitting at the same time, so that the metal pipe fitting can be subjected to a stable and uniform force when fixed, thereby avoiding the metal pipe fitting from being deflected. During the disassembly process of the metal pipe fitting, the movable mold 32 is separated from the metal pipe fitting first, and then the sliding mold 31 is separated from the metal pipe fitting, thereby avoiding the problem that the movable mold 32 and the sliding mold 31 are separated from the metal pipe fitting at the same time and causing the metal pipe fitting to move lateraly.

[0068] When the metal pipe is placed in the first clamping groove 101, it may be placed unstable. After the metal pipe is stamped, due to the influence of surface roughness, the side wall of the metal pipe may adhere to the inner wall of the first clamping groove 101 to a certain extent. In order to solve this problem, a downward force can be applied to the metal pipe when the second parting mold 3 is against the first parting mold 1 to improve its fixing stability, and an upward force is applied to the metal pipe when the second parting mold 3 is separated from the first parting mold 1, so as to separate the metal pipe from the first clamping groove 101.

[0069] To this end, two oblong holes 305 are provided in the movable mold 32. The cross section of the oblong hole 305 is an oblong. The length direction of the cross section is parallel to the axial direction of the cavity enclosed by the first clamping groove 101, the second clamping groove 301 and the third clamping groove 401. The length direction of the cross section of the oblong hole 305 is also parallel to the axial direction of the guide column 6. The two slide posts 2 connected to the movable mold 32 are respectively slidably arranged in the two oblong holes 305, that is, the movable mold 32 can move along the axial direction of the slide post 2 and the axial direction of the guide post 6. At this time, the driving groove 304 is moved along the inner diameter of the axial direction of the guide post 6 along the second parting mold. 3 gradually decreases in the direction from the first parting mold 1 to the first parting mold 1, and the inner diameter of the driving groove 304 near the end of the first parting mold 1 is equal to the outer diameter of the driving block 33; that is, when the driving block 33 moves to the end of the driving groove 304 near the first parting mold 1, the movable mold 32 is engaged with the sliding mold 31. At this time, the movable mold 32 can only move along the axial direction of the sliding column 2 following the sliding mold 31, and when the driving block 33 does not move to the end of the driving groove 304 near the first parting mold 1, the movable mold 32 can move along the axial direction of the guide column 6. At this time, applying an upward or downward force to the movable mold 32 can achieve the above effect.

[0070] Specifically, Fig.11 As shown, the driving slot 304 is a vertically symmetrical structure. Figure 4 The movable mold 32 in the position shown applies an upward elastic force, and when the movable mold 32 moves to the left, due to the small friction between the sliding mold 31 and the sliding column 2, the cooperation between the driving block 33 and the inner wall of the driving groove 304 can allow the sliding mold 31 to directly follow the movable mold 32 to move synchronously, rather than first allowing the driving block 33 to move to the left end of the driving groove 304. During this sliding process, the sliding mold 31 is not flush with the movable mold 32 either in the horizontal plane or in the vertical plane; when the sliding mold 31 is in contact with the first split mold 1, the driving block 33 will move to the left end of the driving groove 304, which not only offsets the elastic force applied to the movable mold 32, but also allows the movable mold 32 to be flush with the sliding mold 31. During this process, the movable mold 32 moves downward for a distance, thereby applying a downward force to the metal pipe to be clamped; when Figure 3When the movable mold 32 in the position shown moves to the right, the driving block 33 moves to the right in the driving groove 304, and the elastic force applied to the movable mold 32 will drive the movable mold 32 to move upward for a distance, thereby applying an upward force to the metal pipe to be disassembled to achieve the above-mentioned technical effect.

[0071] The elastic force applied to the movable mold 32 is achieved by the top screw 34, the abutment block 35 and the extrusion spring 36. Fig.12 As shown, a connecting hole 306 is opened on the movable mold 32, and the top screw 34 is connected to the connecting hole 306 by threaded cooperation. The abutment block 35 is slidably set in the connecting hole 306 and abuts against the top side of one of the sliding columns 2. The extrusion spring 36 is abutted between the top screw 34 and the abutment block 35. The elastic force of the extrusion spring 36 is used to drive the movable mold 32 to move upward; at the same time, the size of this elastic force can also be adjusted by twisting the top screw 34, so that the present mold can be adapted to different scenarios.

[0072] The setting of the extrusion spring 36 causes the sliding die 31 and the movable die 32 to be unable to align in motion, so that the sliding die 31 and the movable die 32 cannot simultaneously abut against the circumference of the metal pipe fitting, and the second sub-die 3 cannot apply a stable and uniform clamping force to the metal pipe fitting, which needs to be balanced according to actual working conditions; if the stamping process of the metal pipe fitting requires a stable clamping force without applying a longitudinal force to the metal pipe fitting, the rotation of the top screw can be used to make the elastic force of the extrusion spring 46 equal to the gravity of the movable die 32.

[0073] The driving device of the movable mold 32 is usually a linear driving device such as a hydraulic cylinder. When the movable mold 32 moves closer to or away from the first parting mold 1, it will also move up and down. Therefore, a fixed seat 37 is provided. Figure 4 and Figure 5 As shown, the fixed seat 37 is slidably set on the movable mold 32, and its sliding direction is parallel to the length direction of the cross section of the oblong hole 305. When the output end of the driving device is connected to the fixed seat 37, it can drive the movable mold 32 to move left and right without hindering the upward and downward movement of the movable mold 32.

[0074] When the second parting mold 3 moves, the third parting mold 4 moves completely by contact with the metal pipe or the first parting mold 1, which is easy to wear. Fig. 9 As shown, a fixing groove 402 is opened on the mold body 41, and the mold opening spring 5 is fixedly arranged in the fixing groove 402, and one end of the mold opening spring 5 is abutted against the second parting mold 3. The elastic force of the mold opening spring 5 allows the third parting mold 4 to be separated from the second parting mold 3 when it does not abut against the first parting mold 1. When the third parting mold 4 abuts against the first parting mold 1, the third parting mold 4 can also abut against the second parting mold 3, thereby realizing automatic parting of the third parting mold 4 and the second parting mold 3.

[0075] In this technical solution, even if the error of the metal pipe is large, the mold and the workpiece can be made to correspond by replacing the third sub-mold 4. Since the specifications of the third sub-mold 4 are small, the cost of mold maintenance and adaptive adjustment can be greatly reduced.

[0076] The method of using a production mold for intelligent processing of metal energy-saving pipes of the present invention is as follows:

[0077] S1, fix the first split mold 1 on the work surface, and fix the fixing seat 37 and the extrusion mold 7 in the second split mold 3 to the output ends of the two telescopic driving devices respectively;

[0078] S2, controlling the second split mold 3 and the extrusion mold 7 to move away from the first split mold 1, and fixing the metal pipe in the first clamping groove 101;

[0079] S3, controlling the second split mold 3 to approach the first split mold 1, so that the side wall of the metal pipe is in contact with the first clamping groove 101, the second clamping groove 301 and the third clamping groove 401;

[0080] S4, controlling the extrusion die 7 to approach the first split die 1 to punch the metal pipe;

[0081] S5, control the extrusion die 7 and the second sub-die 3 to move away from the first sub-die 1, take out the stamped metal pipe, and repeat the above steps to stamp the next metal pipe.

[0082] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A production mold for intelligent processing of metal energy-saving pipes, characterized by: It comprises a first parting mold (1), a slide column (2), a second parting mold (3) and two third parting molds (4), wherein: A first clamping groove (101) is provided on the peripheral side of the first split mold (1); The sliding column (2) is fixedly arranged on the first split mold (1); The second split mold (3) is slidably arranged on the slide column (2), and a second clamping groove (301) is opened on its peripheral side; The third split mold (4) is slidably arranged on the second split mold (3), the two third split molds (4) are symmetrically arranged about the center line of the first clamping groove (101), and the distance between the two third split molds (4) is adjustable, and a third clamping groove (401) is opened on the peripheral side of the third split mold (4), and when the third split mold (4) is arranged between the first split mold (1) and the second split mold (3), the first clamping groove (101), the second clamping groove (301) and the third clamping groove (401) enclose a cavity with a circular cross-section, and the arcs corresponding to the peripheral sides of the first clamping groove (101), the second clamping groove (301) and the third clamping groove (401) are all less than π.

2. A production mold for intelligent processing of metal energy-saving pipes according to claim 1, characterized in that: The second sub-mold (3) is provided with a mounting groove (302), and the third sub-mold (4) is slidably arranged in the mounting groove (302); When the third sub-mold (4) is located in the installation groove (302), a side thereof close to the first sub-mold (1) is flush with a side of the second sub-mold (3) close to the first sub-mold (1); When a portion of the third sub-mold (4) extends out of the mounting groove (302), the distance between the two third sub-molds (4) increases.

3. A production mold for intelligent processing of metal energy-saving pipes as claimed in claim 2, characterized in that: A limiting groove (303) is provided in the installation groove (302); The third split mold (4) comprises a mold body (41) and a limit block (42), wherein: The mold body (41) is slidably disposed in the mounting groove (302), and the third clamping groove (401) is provided on the mold body (41); The limit block (42) is fixedly arranged on the mold body (41) and slidably arranged in the limit groove (303), and when the limit block (42) is slidably arranged in the limit groove (303) close to one end of the first split mold (1), the distance between the two mold bodies (41) is not less than the diameter of the cavity enclosed by the first clamping groove (101), the second clamping groove (301) and the third clamping groove (401).

4. A production mold for intelligent processing of metal energy-saving pipes as claimed in claim 3, characterized in that: It also comprises a mold opening spring (5). A fixing groove (402) is provided on the mold body (41). The mold opening spring (5) is fixedly arranged in the fixing groove (402), and one end of the mold opening spring is in contact with the second split mold (3).

5. The production mold for intelligent processing of metal energy-saving pipes according to claim 1, characterized in that: The second split mold (3) comprises a sliding mold (31), a movable mold (32) and a driving block (33), and the second clamping groove (301) comprises a sliding groove (3011) and a movable groove (3012), wherein: Four sliding posts (2) are provided, the sliding mold (31) is slidably provided on two of the sliding posts (2), a driving groove (304) is provided on the sliding mold (31), and the sliding groove (3011) is provided on the sliding mold (31); The movable mold (32) is slidably arranged on the other two sliding columns (2), and the two third split molds (4) are respectively connected to the movable mold (32) and the sliding mold (31), the movable groove (3012) is opened on the movable mold (32), and the arc corresponding to the peripheral side of the sliding groove (3011) is greater than the arc corresponding to the peripheral side of the third clamping groove (401), and smaller than the arc corresponding to the peripheral side of the movable groove (3012), and the sum of the arc corresponding to the peripheral side of the movable groove (3012) and the arc corresponding to the peripheral side of the third clamping groove (401) is less than π; The driving block (33) is fixedly arranged on the movable mold (32) and slidably arranged in the driving groove (304).

6. A production mold for intelligent processing of metal energy-saving pipes as claimed in claim 5, characterized in that: Two oblong holes (305) are provided in the movable mold (32), the length direction of the cross section of the oblong hole (305) is parallel to the axial direction of the cavity enclosed by the first clamping groove (101), the second clamping groove (301) and the third clamping groove (401), and the two sliding columns (2) connected to the movable mold (32) are slidably disposed in the two oblong holes (305) respectively; The inner diameter of the driving groove (304) gradually decreases along the direction from the second parting mold (3) to the first parting mold (1), and the inner diameter of the driving groove (304) at one end close to the first parting mold (1) is equal to the outer diameter of the driving block (33).

7. A production mold for intelligent processing of metal energy-saving pipes as claimed in claim 6, characterized in that: The second split mold (3) further comprises a top screw (34), a supporting block (35) and a pressing spring (36), wherein: The movable mold (32) is provided with a connection hole (306), and the top screw (34) is connected in the connection hole (306) by threaded engagement; The abutment block (35) is slidably disposed in the connection hole (306) and abuts against the top side of one of the sliding columns (2); The extrusion spring (36) is disposed between the top wire (34) and the abutment block (35).

8. A production mold for intelligent processing of metal energy-saving pipes as claimed in claim 7, characterized in that: The second split mold (3) further comprises a fixed seat (37), the fixed seat (37) being slidably disposed on the movable mold (32), and the sliding direction thereof is parallel to the length direction of the cross section of the oblong hole (305).

9. A production mold for intelligent processing of metal energy-saving pipes according to any one of claims 1 to 8, characterized in that: It also includes a guide column (6) and an extrusion die (7), wherein: The guide column (6) is fixedly arranged on the first split mold (1), and its axial direction is perpendicular to the axial direction of the sliding column (2); The extrusion die (7) is slidably arranged on the guide pillar (6).

10. A method for using the production mold for intelligent processing of metal energy-saving pipes as claimed in claim 9, characterized in that: The following steps are involved: S1, fixing the first split mold (1) on a work surface, and fixing the second split mold (3) and the extrusion mold (7) to output ends of two telescopic drive devices respectively; S2, controlling the second split mold (3) and the extrusion mold (7) to move away from the first split mold (1), and fixing the metal pipe in the first clamping groove (101); S3, controlling the second split mold (3) to approach the first split mold (1) so that the side wall of the metal pipe is in contact with the first clamping groove (101), the second clamping groove (301) and the third clamping groove (401); S4, controlling the extrusion die (7) to approach the first split die (1) to punch the metal pipe; S5, controlling the extrusion die (7) and the second split die (3) to move away from the first split die (1), and taking out the stamped metal pipe.

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