CN112091063A - Punch structure and punching device - Google Patents
Punch structure and punching device Download PDFInfo
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- CN112091063A CN112091063A CN202010889952.9A CN202010889952A CN112091063A CN 112091063 A CN112091063 A CN 112091063A CN 202010889952 A CN202010889952 A CN 202010889952A CN 112091063 A CN112091063 A CN 112091063A
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- Prior art keywords
- punch
- length
- radius
- cylindrical surface
- elliptical
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D28/00—Shaping by press-cutting; Perforating
- B21D28/24—Perforating, i.e. punching holes
- B21D28/34—Perforating tools; Die holders
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D19/00—Flanging or other edge treatment, e.g. of tubes
- B21D19/08—Flanging or other edge treatment, e.g. of tubes by single or successive action of pressing tools, e.g. vice jaws
- B21D19/088—Flanging or other edge treatment, e.g. of tubes by single or successive action of pressing tools, e.g. vice jaws for flanging holes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D28/00—Shaping by press-cutting; Perforating
- B21D28/24—Perforating, i.e. punching holes
- B21D28/28—Perforating, i.e. punching holes in tubes or other hollow bodies
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D37/00—Tools as parts of machines covered by this subclass
Abstract
The invention provides a punch structure and a punching device, wherein the punch structure comprises: the main punching body is provided with at least part of the outer peripheral surface of a cylindrical surface; the primary punch is arranged at the end part of the main punch body, and at least part of the outer peripheral surface of the primary punch is an elliptical surface so as to punch the pipe wall of the pipe body sequentially through the primary punch and the main punch body; wherein, the radius of the cylindrical surface is larger than the length of the major semi-axis of the elliptic surface. The punch structure solves the problem that the size and the height of a pipeline flanging hole are inaccurate in the prior art, so that the pipeline assembling and welding effect is influenced.
Description
Technical Field
The invention relates to the field of pipe welding, in particular to a punch structure and a punching device.
Background
In the prior art, when pipeline components matched with each other in a penetrating way are produced, the produced pipelines need to be welded in a pipe distribution mode, and an important factor influencing the pipeline welding is the pipe distribution fitting degree, the effective matching length and the uniformity of the effective matching length.
The difficulty of pipe positioning must be solved to promote the cooperation between the pipeline, and the accuracy of pipe positioning depends on the anchor point of pipeline and the turn-ups state of copper pipe, and the anchor point can be solved easily by the mode of bump location, and the quality, size, height etc. of turn-ups hole 101 will directly influence the assembly welding effect promptly, and once the pipe welding goes wrong, the complete machine performance will be influenced, causes great loss.
Disclosure of Invention
The invention mainly aims to provide a punch structure and a punching device, and aims to solve the problem that the quality, the size and the height of a pipeline flanging hole in the prior art are inaccurate, so that the pipeline assembling and welding effect is influenced.
In order to achieve the above object, according to one aspect of the present invention, there is provided a punch structure including: the main punching body is provided with at least part of the outer peripheral surface of a cylindrical surface; the primary punch is arranged at the end part of the main punch body, and at least part of the outer peripheral surface of the primary punch is an elliptical surface so as to punch the pipe wall of the pipe body sequentially through the primary punch and the main punch body; wherein, the radius of the cylindrical surface is larger than the length of the major semi-axis of the elliptic surface.
Further, the top end of the primary punch is a plane or a circular arc surface.
Further, the main punching body comprises a punching head section and a limiting section, the limiting section is arranged at one end, far away from the primary punching head, of the punching head section, the outer peripheral surface of the punching head section is a cylindrical surface, and a limiting step is formed between the limiting section and the punching head section.
Furthermore, a chamfer tangent plane is arranged on the limiting section and extends to the limiting step.
Furthermore, a guide groove used for being matched with a guide rail on a push rod of the punching device is arranged on the main punching body.
Furthermore, the radius of the cylindrical surface ranges from 2.5mm to 5.0mm, the length of the minor axis of the elliptical surface ranges from 1.5mm to 3.5mm, and the length of the minor axis of the elliptical surface ranges from 2.0mm to 4.0 mm.
Further, the ratio of the length of the semi-minor axis of the elliptical surface to the radius of the cylindrical surface ranges from 0.28 to 0.34, and the ratio of the length of the semi-major axis of the elliptical surface to the radius of the cylindrical surface ranges from 0.7 to 0.9.
Further, the length of the minor half shaft of the elliptical surface is 1.6mm, and the length of the major axis of the elliptical surface is 2.1 mm; or the radius of the cylindrical surface is 3.15mm, the length of the minor semi-axis of the elliptic surface is 1.75mm, and the length of the major axis of the elliptic surface is 2.25 mm; or the radius of the cylindrical surface is 3.65mm, the length of the minor semi-axis of the elliptic surface is 2.1mm, and the length of the major axis of the elliptic surface is 2.7 mm; or the radius of the cylindrical surface is 4.15mm, the length of the minor semi-axis of the elliptic surface is 2.6mm, and the length of the major axis of the elliptic surface is 3.2 mm; or the radius of the cylindrical surface is 4.9mm, the length of the minor semi-axis of the elliptic surface is 3.1mm, and the length of the major axis of the elliptic surface is 3.65 mm.
According to another aspect of the present invention, there is provided a pressurizing device, the punching device includes a punch structure and a push rod, the punch structure is connected with the push rod to push the punch structure through the push rod to perform a punching operation, and the punch structure is the punch structure.
Further, stamping device still includes the direction subassembly, and the direction subassembly includes first stand pipe and the second stand pipe that detachably connects, and the push rod is worn to establish in first stand pipe and second stand pipe, and first stand pipe is used for being connected with the fixing base, is provided with the hole of dodging that supplies the drift structure to pass on the pipe wall of second stand pipe.
The technical scheme of the invention comprises the following steps: the main punching body is provided with at least part of the outer peripheral surface of a cylindrical surface; the primary punch is arranged at the end part of the main punch body, and at least part of the outer peripheral surface of the primary punch is an elliptical surface so as to punch the pipe wall of the pipe body sequentially through the primary punch and the main punch body; wherein, the radius of the cylindrical surface is greater than the length of the major axis of the elliptical surface, and the quality, the size and the height of the pipeline flanging hole are inaccurate, thereby influencing the assembly welding effect of the pipeline.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
figure 1 shows a schematic structural view of an embodiment of a punch construction according to the invention; and
FIG. 2 shows a front view of an embodiment of a punch construction of the present invention;
FIG. 3 shows a cross-sectional view A-A of the embodiment of FIG. 2 of the punch construction of the present invention;
FIG. 4 shows a top view of the embodiment of FIG. 2 of the punch construction of the present invention;
FIG. 5 is a schematic diagram of a flanged hole punched by a prior art punch structure;
FIG. 6 is a schematic diagram of a flanged hole punched by the punch structure of the present invention;
FIG. 7 is a diagram showing the effect of the pipe after the punching process is completed by using the punch structure of the invention;
FIG. 8 shows a schematic structural view of an embodiment of the stamping device of the present invention;
FIG. 9 shows a schematic structural view of an embodiment of a push rod of the stamping device of the present invention; and
fig. 10 is a schematic view showing a structure in which a punch structure in the punch device of the present invention is mounted in a second guide tube.
Wherein the figures include the following reference numerals:
1. a punch structure; 11. a primary punch; 12. a main punch body; 121. a punch section; 1211. stamping a step; 1212. chamfering the arc surface; 122. a limiting section; 1221. a limiting step; 1222. chamfering and cutting; 123. a guide groove; 2. a push rod; 21. a guide rail; 3. a guide assembly; 31. a first guide tube; 32. a second guide tube; 33. a fixed seat; 311. avoiding holes; 100. a pipe body; 101. and (4) flanging holes.
Detailed Description
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
A punch structure according to an embodiment of the present invention, as shown in fig. 1 to 4, for punching a pipe wall of a pipe body 100, includes: the main punching body 12, at least part of the outer peripheral surface of the main punching body 12 is a cylindrical surface; a primary punch 11, the primary punch 11 being disposed at an end portion of the main punch 12, at least a portion of an outer peripheral surface of the primary punch 11 being an elliptical surface, for performing a punching operation on a pipe wall of the pipe body 100 sequentially through the primary punch 11 and the main punch 12; wherein, the radius of the cylindrical surface is larger than the length of the major semi-axis of the elliptic surface.
The punch structure of the present embodiment, as shown in fig. 1 to 4, includes: the main punching body 12, at least part of the outer peripheral surface of the main punching body 12 is a cylindrical surface; a primary punch 11, the primary punch 11 being disposed at an end portion of the main punch 12, at least a portion of an outer peripheral surface of the primary punch 11 being an elliptical surface, for performing a punching operation on a pipe wall of the pipe body 100 sequentially through the primary punch 11 and the main punch 12; wherein, the radius of the cylindrical surface is larger than the length of the major semi-axis of the elliptic surface. At least part of the outer peripheral surface of the primary punch 11 is an oval surface, when the primary punch 11 punches a pipeline, enough material of the pipe body 100 is left at the lower part of the pipeline with the formed oval small hole, and then the main punch 12 punches and flanges the pipe wall of the pipe body 100, so that the flanges at all positions of the flanged hole 101 are consistent in height, and the problem that the assembly welding effect of the pipeline is influenced due to the fact that the sizes and the heights of the pipeline flanged hole 101 are inaccurate in the prior art is solved.
The top and bottom structures of the punch in the traditional pipeline punching mode are circular structures, and during flanging, the small hole ejecting structure at the top edges and corners is circular in shape of the top of the flanging head, and when upward acting force is applied to the bottom of the flanging head, the pipe body 100 is ejected upwards by a certain flanging height, and at the moment, copper pipe materials of outward flanging at each position of the small hole of the pipe body 100 are consistent, so that the copper pipes are consistent in outward flanging height, and the crescent flanging hole 101 shown in fig. 5 is formed.
As shown in fig. 1 to 4, the punch structure in this embodiment mainly includes a primary punch 11 and a main punch 12, at least a part of an outer peripheral surface of the primary punch 11 is an elliptical surface, when the pipe wall of the pipe body 100 is pressurized, the elliptical surface on the primary punch 11 punches the pipe wall of the pipe body 100, a length of a major axis of the elliptical surface on the primary punch 11 is smaller than a diameter of a hole required in the pipe body, and the elliptical surface on the primary punch 11 punches the pipe wall of the pipe body 100 to form an elliptical hole.
Specifically, the major axis of the elliptical surface of the primary punch 11 is parallel to the axis of the pipe body 100, and the elliptical hole thus formed extends in the pipe axis direction. Thereafter, the punch structure 1 continues to move towards the pipe wall of the pipe body 100, the cylindrical surface of the main punch 12 punches the pipe wall of the pipe body 100 again, and the pipe material around the elliptical small hole punched by the primary punch 11 is punched out of the pipe wall of the pipe body 100 to form a flanging. Because the length of the major semi-axis of the elliptic surface on the primary punch 11 is smaller than the diameter of the hole required by the pipe body, the area of the elliptic small hole formed by the impact of the primary punch 11 can be ensured to be smaller than that of the cylindrical surface, and thus, enough pipe body is reserved around the elliptic small hole for the main punch 12 to punch to form a flanging.
The oval small hole that the punching press of primary drift 11 formed is punched by the face of cylinder punching the body 12 and is formed circular shape turn-ups hole 101, and body 100 receives the punching press upward effort of main punching the body 12, upwards ejecting certain turn-ups height with the copper pipe, because the small hole is the ellipse type, the turn-ups height that this moment copper pipe was followed the axle is less than the copper pipe along the turn-ups height of circumference, as shown in fig. 6, 7, can finally form the turn-ups hole 101 of top turn-ups parallel and level. The flanging hole 101 with the structure reduces the correction operation on the flanging opening during welding, and ensures the subsequent pipeline assembling and welding.
Preferably, a stamping step 1211 is arranged between the punch segment 121 of the main punch 12 and the primary punch 11, a chamfer arc 1212 is arranged on the stamping step 1211, and the chamfer arc 1212 extends to the punch segment 121, so as to punch the tube material out of the tube body 100 to form the flanging hole 101 without damaging the tube body.
As shown in fig. 1, in the punch structure of the present embodiment, the tip of the primary punch 11 is a flat surface or an arc surface.
The tip of the primary punch 11 may alternatively be provided as a flat surface or a curved surface. The top end of the primary punch 11 is set to be a plane, when the primary punch 11 punches the pipe wall of the pipe body 100, the primary punch 11 firstly contacts the pipe wall with a lower position, and then gradually punches outwards to form a flanging hole 101; if the top end of the primary punch 11 is set to be an arc surface, when the primary punch 11 punches the pipe wall of the pipe body 100, the effect that the primary punch 11 is simultaneously contacted with the pipe wall of the pipe body 100 can be achieved, and the top end of the primary punch 11 can be selected to be a plane or an arc surface according to the required punching effect.
In the punch structure in this embodiment, as shown in fig. 1 to 4, the main punch 12 includes a punch segment 121 and a limiting segment 122, the limiting segment 122 is disposed at one end of the punch segment 121 away from the primary punch 11, an outer peripheral surface of the punch segment 121 is a cylindrical surface, and a limiting step 1221 is formed between the limiting segment 122 and the punch segment 121.
As shown in fig. 1 to 4, the main punch 12 includes a punch segment 121 and a stopper segment 122, the stopper segment 122 is disposed at an end of the punch segment 121 away from the primary punch 11, and an outer peripheral surface of the punch segment 121 is a cylindrical surface so as to further punch a small hole formed by the impact of the primary punch 11 to form the flanged hole 101. Set up spacing section 122, the purpose is with punch structure 1 spacing in the body, makes punching press operation convenient safety more. When the main punching body 12 punches the pipe wall of the pipe body 100 to form the flanging hole 101, if the punch structure 1 still has an external force to move towards the pipe wall, at this time, a limiting step 1221 is formed between the limiting section 122 and the punch section 121, the punch structure 1 continues to move along the punching direction until the limiting step 1221 contacts with the pipe wall, and the limiting step 1221 blocks the movement of the punch structure 1, so that the limiting purpose is achieved.
In the punch structure of the present embodiment, as shown in fig. 2, a chamfer cut 1222 is provided on the stopper section 122, and the chamfer cut 1222 extends to a stopper step 1221.
The limiting section 122 is provided with a chamfer cut 1222, and the chamfer cut 1222 extends to a limiting step 1221, so that the wall surface is not damaged when the limiting step 1221 contacts with the wall surface of the tube body 100.
In the present embodiment, as shown in fig. 1 to 4, the main punch body 12 of the punch structure is provided with a guide groove 123 for cooperating with the guide rail 21 on the push rod 2 of the punching device.
In order to achieve the purpose that the punch structure 1 punches the tube 100, the main punch 12 is provided with a guide groove 123 for matching with the guide rail 21 on the push rod 2 of the punching device, so that the push rod 5 can provide a force for punching the tube 100 to the punch structure 1 through the guide groove 123.
As shown in fig. 4, in the punch structure of the present embodiment, the radius L1 of the cylindrical surface ranges from 2.5mm to 5.0mm, the length L2 of the minor axis of the elliptical surface ranges from 1.5mm to 3.5mm, and the length L2 of the minor axis of the elliptical surface ranges from 2.0mm to 4.0 mm.
In order to achieve the purpose of equalizing the heights of the flanges at all positions of the flanging hole 101, the radius L1 of the cylindrical surface ranges from 2.5mm to 5.0mm, the length L2 of the minor axis of the elliptical surface ranges from 1.5mm to 3.5mm, and the length L2 of the minor axis of the elliptical surface ranges from 2.0mm to 4.0 mm.
In the punch structure of the embodiment, the ratio of the length L2 of the semiaxis of the ellipse to the radius L1 of the cylindrical surface ranges from 0.28 to 0.34, and the ratio of the length L3 of the semiaxis of the ellipse to the radius L1 of the cylindrical surface ranges from 0.7 to 0.9.
In order to achieve the purpose of equalizing the heights of the flanges at all positions of the flanging hole 101, the ratio of the length L2 of the semiaxis of the ellipse to the radius L1 of the cylindrical surface ranges from 0.28 to 0.34, and the ratio of the length L3 of the semiaxis of the ellipse to the radius L1 of the cylindrical surface ranges from 0.7 to 0.9.
In the punch structure of the present embodiment, as shown in fig. 4, the radius L1 of the cylindrical surface is 2.95mm, the length L2 of the minor axis of the elliptical surface is 1.6mm, and the length of the major axis of the elliptical surface is 2.1 mm; or the radius L1 of the cylindrical surface is 3.15mm, the length L2 of the minor semi-axis of the elliptical surface is 1.75mm, and the length of the major semi-axis of the elliptical surface is 2.25 mm; or the radius L1 of the cylindrical surface is 3.65mm, the length L2 of the minor semi-axis of the elliptic surface is 2.1mm, and the length of the major axis of the elliptic surface is 2.7 mm; or the radius L1 of the cylindrical surface is 4.15mm, the length L2 of the minor semi-axis of the elliptical surface is 2.6mm, and the length of the major axis of the elliptical surface is 3.2 mm; or the radius L1 of the cylindrical surface is 4.9mm, the length L2 of the minor semi-axis of the elliptic surface is 3.1mm, and the length of the major axis of the elliptic surface is 3.65 mm.
In order to achieve the purpose of equalizing the heights of the flanges at various positions of the flanged hole 101, the following forms of cylindrical surface and elliptical surface can be adopted:
the first embodiment: the radius L1 of the cylindrical surface is 2.95mm, the length L2 of the minor semi-axis of the elliptical surface is 1.6mm, and the length of the major axis of the elliptical surface is 2.1 mm.
Second embodiment: the radius L1 of the cylindrical surface is 3.15mm, the length L2 of the minor semi-axis of the elliptical surface is 1.75mm, and the length of the major axis of the elliptical surface is 2.25 mm.
Third embodiment: the radius L1 of the cylindrical surface is 3.65mm, the length L2 of the minor semi-axis of the elliptical surface is 2.1mm, and the length of the major axis of the elliptical surface is 2.7 mm.
Fourth embodiment: the radius L1 of the cylindrical surface is 4.15mm, the length L2 of the minor semi-axis of the elliptical surface is 2.6mm, and the length of the major axis of the elliptical surface is 3.2 mm.
Fifth embodiment: the radius L1 of the cylindrical surface is 4.9mm, the length L2 of the minor semi-axis of the elliptical surface is 3.1mm, and the length of the major axis of the elliptical surface is 3.65 mm.
The above-described embodiment can make the punch structure 1 punch the tubular body 100 to form the burring holes 101 with flush upper end faces (i.e., equal burring heights) as shown in fig. 6.
The embodiment of the invention also provides a punching device, which comprises a punch structure 1 and a push rod 2, wherein the punch structure 1 is connected with the push rod 2 so as to push the punch structure 1 through the push rod 2 to perform punching operation, and the punch structure 1 is the punch structure 1.
As shown in fig. 9 and 10, the punching apparatus in this embodiment further includes a guiding assembly 3, the guiding assembly 3 includes a first guiding tube 31 and a second guiding tube 32 that are detachably connected, the push rod 2 is inserted into the first guiding tube 31 and the second guiding tube 32, the first guiding tube 31 is used for being connected with the fixing seat 33, and a avoiding hole 311 for the punch structure 1 to pass through is formed in a tube wall of the second guiding tube 32.
A preferred embodiment of the press apparatus of the present invention is explained below:
as shown in fig. 8, 9 and 10, the push rod 2 is provided with a guide rail 21 which is matched with the guide groove 123 on the punch structure 1, the guide pipe assembly comprises a first guide pipe 31, a second guide pipe 32 and a fixed seat 33, and the first guide pipe 31 is detachably connected with the second guide pipe 32, which is selected to be a threaded connection in this embodiment. The first guiding tube 31 is connected to the fixing base 33, and in this embodiment, the first guiding tube 31 is welded to the fixing base 33.
The second guide tube 32 is provided with avoidance holes 311, the axes of the avoidance holes 311 are perpendicular to the axis of the second guide tube 32 and intersect with the axis of the second guide tube 32, in this embodiment, the number of the avoidance holes 311 is 2, and the punch structure 1 is arranged in the second guide tube 32 and can move up and down in the avoidance holes 311. The push rod 2 is movably inserted into the second guide tube 32 and is connected with the guide groove 123 of the punch structure 1 through the guide rail 21. The guide assembly 3 is provided with a passage therein to pass through the first guide tube 31, the second guide tube 32 and the fixing seat 33.
The body 100 cover that will carry out the operation of punching a hole is established in the outside of guide assembly 3 and is fixed, push rod 2 gets into guide assembly 3 from one side of guide assembly 3 under the effect of external force in to promote drift structure 1, make drift structure 1 can reciprocate in dodging the hole under the influence of effort from top to bottom, thereby to ejecting in order to form the aperture to the outside from the inside of body 100, the influence that receives effort from top to bottom simultaneously in drift structure 1 bottom continues ejecting to the outside, make the tensile deformation of the pipe material on the body 100, finally form flanging hole 101.
From the above description, it can be seen that the above-described embodiments of the present invention achieve the following technical effects:
the punch structure of the embodiment comprises: the main punching body 12, at least part of the outer peripheral surface of the main punching body 12 is a cylindrical surface; a primary punch 11, the primary punch 11 being disposed at an end portion of the main punch 12, at least a portion of an outer peripheral surface of the primary punch 11 being an elliptical surface, for performing a punching operation on a pipe wall of the pipe body 100 sequentially through the primary punch 11 and the main punch 12; wherein, the radius of the cylindrical surface is larger than the length of the major semi-axis of the elliptic surface. At least part of the outer peripheral surface of the primary punch 11 is an oval surface, when the primary punch 11 punches a pipeline, enough material of the pipe body 100 is left at the lower part of the pipeline with the formed oval small hole, and then the main punch 12 punches and flanges the pipe wall of the pipe body 100, so that the flanges at all positions of the flanged hole 101 are consistent in height, and the problem that the assembly welding effect of the pipeline is influenced due to the fact that the sizes and the heights of the pipeline flanged hole 101 are inaccurate in the prior art is solved.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A punch construction for punching a wall of a tubular body (100), the punch construction comprising:
the punching device comprises a main punching body (12), wherein at least part of the outer peripheral surface of the main punching body (12) is a cylindrical surface;
the primary punch (11) is arranged at the end part of the main punch body (12), at least part of the outer peripheral surface of the primary punch (11) is an elliptical surface, and the primary punch (11) is used for punching the pipe wall of the pipe body (100) sequentially through the primary punch (11) and the main punch body (12);
wherein the radius of the cylindrical surface is greater than the length of the major semi-axis of the elliptical surface.
2. The punch construction according to claim 1, characterized in that the top end of the primary punch (11) is a plane or a circular arc.
3. The punch structure according to claim 1, wherein the main punch body (12) comprises a punch section (121) and a limiting section (122), the limiting section (122) is arranged at one end of the punch section (121) far away from the primary punch (11), the outer peripheral surface of the punch section (121) is the cylindrical surface, and a limiting step (1221) is formed between the limiting section (122) and the punch section (121).
4. The punch construction according to claim 3, characterized in that a chamfer cut (1222) is provided on the retaining section (122), the chamfer cut (1222) extending to the retaining step (1221).
5. Punch construction according to claim 1, characterized in that the main punch body (12) is provided with guide grooves (123) for cooperation with guide rails (21) on the push rod (2) of the punching device.
6. The punch structure of claim 1, wherein the radius of the cylindrical surface ranges from 2.5mm to 5.0mm, the length of the minor axis of the elliptical surface ranges from 1.5mm to 3.5mm, and the length of the minor axis of the elliptical surface ranges from 2.0mm to 4.0 mm.
7. The punch construction of claim 1, wherein the ratio of the length of the semi-minor axis of the elliptical surface to the radius of the cylindrical surface ranges from 0.28 to 0.34, and the ratio of the length of the semi-major axis of the elliptical surface to the radius of the cylindrical surface ranges from 0.7 to 0.9.
8. The punch construction according to claim 1,
the radius of the cylindrical surface is 2.95mm, the length of the minor semi-axis of the elliptical surface is 1.6mm, and the length of the major axis of the elliptical surface is 2.1 mm; or
The radius of the cylindrical surface is 3.15mm, the length of a short half shaft of the elliptical surface is 1.75mm, and the length of a long plate shaft of the elliptical surface is 2.25 mm; or
The radius of the cylindrical surface is 3.65mm, the length of a minor semi-axis of the elliptical surface is 2.1mm, and the length of a major axis of the elliptical surface is 2.7 mm; or
The radius of the cylindrical surface is 4.15mm, the length of a short half shaft of the elliptical surface is 2.6mm, and the length of a long plate shaft of the elliptical surface is 3.2 mm; or
The radius of the cylindrical surface is 4.9mm, the length of the minor semi-axis of the elliptical surface is 3.1mm, and the length of the major axis of the elliptical surface is 3.65 mm.
9. Punching device, characterized in that it comprises a punch structure (1) and a push rod (2), said punch structure (1) being connected to said push rod (2) for pushing said punch structure (1) by said push rod (2) for a punching operation, said punch structure (1) being as claimed in any one of claims 1 to 8.
10. The punching device according to claim 9, characterized in that the punching device further comprises a guide assembly (3), the guide assembly (3) comprises a first guide pipe (31) and a second guide pipe (32) which are detachably connected, the push rod (2) is arranged in the first guide pipe (31) and the second guide pipe (32) in a penetrating manner, the first guide pipe (31) is used for being connected with a fixed seat (33), and an avoidance hole (311) for the punch structure (1) to pass through is arranged on the pipe wall of the second guide pipe (32).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010889952.9A CN112091063A (en) | 2020-08-28 | 2020-08-28 | Punch structure and punching device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010889952.9A CN112091063A (en) | 2020-08-28 | 2020-08-28 | Punch structure and punching device |
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| CN112091063A true CN112091063A (en) | 2020-12-18 |
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| CN202010889952.9A Pending CN112091063A (en) | 2020-08-28 | 2020-08-28 | Punch structure and punching device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112719087A (en) * | 2020-12-31 | 2021-04-30 | 苏州海陆重工股份有限公司 | Forming method for upper outlet of nuclear power hanging basket barrel |
| CN113441589A (en) * | 2021-07-13 | 2021-09-28 | 珠海格力智能装备有限公司 | Punching and flanging punch and punching and flanging integrated machine |
| CN113996683A (en) * | 2021-09-13 | 2022-02-01 | 广州纬华节能设备有限公司 | Metal pipe side flanging forming device and forming method |
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| CN104096746A (en) * | 2014-07-18 | 2014-10-15 | 中山市奥美森工业有限公司 | Punch and punching device for punching wall of metal round tube |
| CN105665522A (en) * | 2016-04-15 | 2016-06-15 | 王向阳 | Punching and flanging machine |
| CN205732524U (en) * | 2016-06-24 | 2016-11-30 | 苏州凯富精密模具有限公司 | For the drift that automobile formwork parts piercing and flanging is once-forming |
| CN206009541U (en) * | 2016-08-31 | 2017-03-15 | 河南顿汉家用电器有限公司 | Thin-wall copper pipe tube wall pulls out aperture apparatus |
| CN108435891A (en) * | 2018-04-16 | 2018-08-24 | 长沙格力暖通制冷设备有限公司 | Pore punch |
| CN109622748A (en) * | 2018-12-29 | 2019-04-16 | 安徽省三荣科技有限公司 | Hole punched device |
| CN110280652A (en) * | 2019-06-28 | 2019-09-27 | 黎明钢构股份有限公司 | Hole punched device for round tube Steel section member |
| CN111069411A (en) * | 2018-10-19 | 2020-04-28 | 大冶市新安南碳钢管件有限公司 | Pipe wall punching device of metal pipe |
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| JPH067855A (en) * | 1992-06-25 | 1994-01-18 | Matsushita Refrig Co Ltd | Punch for burring tube and method for burring |
| CN102500697A (en) * | 2011-11-23 | 2012-06-20 | 惠州市德赛视听科技有限公司 | Punching and flanging die |
| CN202438612U (en) * | 2012-02-20 | 2012-09-19 | 福建福模精密技术有限公司 | Flanging and once molding punch without scrap generation |
| CN103551449A (en) * | 2013-10-23 | 2014-02-05 | 中山市奥美森工业有限公司 | Puncher pin for punching tube wall of metal round tube and punching device |
| CN104096746A (en) * | 2014-07-18 | 2014-10-15 | 中山市奥美森工业有限公司 | Punch and punching device for punching wall of metal round tube |
| CN105665522A (en) * | 2016-04-15 | 2016-06-15 | 王向阳 | Punching and flanging machine |
| CN205732524U (en) * | 2016-06-24 | 2016-11-30 | 苏州凯富精密模具有限公司 | For the drift that automobile formwork parts piercing and flanging is once-forming |
| CN206009541U (en) * | 2016-08-31 | 2017-03-15 | 河南顿汉家用电器有限公司 | Thin-wall copper pipe tube wall pulls out aperture apparatus |
| CN108435891A (en) * | 2018-04-16 | 2018-08-24 | 长沙格力暖通制冷设备有限公司 | Pore punch |
| CN111069411A (en) * | 2018-10-19 | 2020-04-28 | 大冶市新安南碳钢管件有限公司 | Pipe wall punching device of metal pipe |
| CN109622748A (en) * | 2018-12-29 | 2019-04-16 | 安徽省三荣科技有限公司 | Hole punched device |
| CN110280652A (en) * | 2019-06-28 | 2019-09-27 | 黎明钢构股份有限公司 | Hole punched device for round tube Steel section member |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112719087A (en) * | 2020-12-31 | 2021-04-30 | 苏州海陆重工股份有限公司 | Forming method for upper outlet of nuclear power hanging basket barrel |
| CN113441589A (en) * | 2021-07-13 | 2021-09-28 | 珠海格力智能装备有限公司 | Punching and flanging punch and punching and flanging integrated machine |
| CN113996683A (en) * | 2021-09-13 | 2022-02-01 | 广州纬华节能设备有限公司 | Metal pipe side flanging forming device and forming method |
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