CN112846784A - Automatic punching, hole pulling and flat head device for stainless steel pipe - Google Patents
Automatic punching, hole pulling and flat head device for stainless steel pipe Download PDFInfo
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- CN112846784A CN112846784A CN202011577610.XA CN202011577610A CN112846784A CN 112846784 A CN112846784 A CN 112846784A CN 202011577610 A CN202011577610 A CN 202011577610A CN 112846784 A CN112846784 A CN 112846784A
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- steel pipe
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P23/00—Machines or arrangements of machines for performing specified combinations of different metal-working operations not covered by a single other subclass
- B23P23/04—Machines or arrangements of machines for performing specified combinations of different metal-working operations not covered by a single other subclass for both machining and other metal-working operations
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Abstract
The invention discloses an automatic punching, hole pulling and flat head device for a stainless steel pipe, which comprises a machine table, wherein an outer rod and an inner core fixedly connected with the end part of the outer rod are fixedly arranged on the machine table, and the outer rod and the inner core are hollow; a trolley clamping die capable of moving along the length direction of the outer rod is sleeved outside the outer rod and used for clamping the end parts of the stainless steel pipes sleeved outside the outer rod and the inner core; main clamping dies are arranged on two sides of the inner core; a flat-mouth clamping die is arranged on one side, away from the trolley clamping die, of the main clamping die, and a flat-head knife capable of moving up and down and used for flat-mouth is arranged above the flat-mouth clamping die; the invention can simultaneously carry out a plurality of working procedures such as punching, hole pulling, flat head and the like on the same device, can realize the automation of the whole process, and is beneficial to improving the production efficiency and reducing the production cost.
Description
Technical Field
The invention relates to the technical field of hole machining of stainless steel pipes, in particular to an automatic hole punching, hole pulling and flat head device for a stainless steel pipe.
Background
In a hole machining process of a stainless steel pipe, a hole punching cutter is firstly needed to be used for punching a hole on the pipe wall of the stainless steel pipe, then a hole drawing device is used for drawing the hole outwards, and finally a flat-end cutter is used for deburring and polishing the surface of the drawn hole. In the prior art, several procedures of punching, hole pulling and flat head are required to be separately processed, so that time and labor are wasted, the processing efficiency is low, and the production cost is high.
Disclosure of Invention
The invention aims to provide an automatic stainless steel pipe punching, hole pulling and flat head device, which integrates multiple procedures of punching, hole pulling and flat head and realizes the automation of the whole set of process of stainless steel pipe hole machining.
In order to achieve the above purpose, the invention provides the following technical scheme: an automatic punching, hole pulling and flat head device for a stainless steel pipe comprises a machine table, wherein an outer rod and an inner core fixedly connected to the end part of the outer rod are fixedly arranged on the machine table, and the outer rod and the inner core are hollow; a trolley clamping die capable of moving along the length direction of the outer rod is sleeved outside the outer rod and used for clamping the end parts of the stainless steel pipes sleeved outside the outer rod and the inner core; the two sides of the inner core are provided with main clamping dies for clamping the stainless steel pipe during punching and hole drawing; a flat-mouth clamping die is arranged on one side, away from the trolley clamping die, of the main clamping die, and a flat-head knife capable of moving up and down and used for flat-mouth is arranged above the flat-mouth clamping die;
the inner core is provided with vertical top holes and punching knife holes at intervals, and a punching knife capable of moving up and down for punching is arranged above the punching knife holes; a top head capable of moving up and down is arranged in the top head hole, an inner push rod is arranged in the inner cavity of the outer rod, a punching needle is fixedly arranged at the end part of the inner push rod, and the inner push rod can move left and right along the inner cavity of the outer rod; the end part of the punching needle, which is far away from the inner push rod, is provided with an inclined guide strip, and the top is provided with an inclined groove matched with the guide strip, so that the top can move up and down when the inner push rod drives the punching needle to move left and right.
Preferably, one end of the inner push rod, which is far away from the punching needle, is provided with an inner push rod hydraulic cylinder, and the output end of the inner push rod hydraulic cylinder is connected with the inner push rod.
Preferably, the machine table is provided with a main supporting plate capable of sliding left and right along the length direction of the outer rod, and the trolley clamping die is arranged on the main supporting plate.
Preferably, the trolley clamping die can be rotatably arranged on the main supporting plate around the outer rod, and a trolley clamping die servo motor for driving the trolley clamping die to rotate is arranged on the main supporting plate.
Preferably, the main clamping die is provided with abdicating grooves respectively corresponding to the ejector head hole and the punching cutter hole.
Preferably, a concave die insert groove is formed in the top of the inner core at the position of the punching cutter hole, a concave die insert is fixedly arranged in the concave die insert groove, and the outer surface of the concave die insert is flush with the outer surface of the inner core.
Preferably, the tail part of the machine table is also provided with an auxiliary clamping die capable of moving left and right.
Preferably, the tail part of the machine table is provided with an auxiliary supporting plate capable of moving left and right, and the auxiliary clamping die is arranged on the auxiliary supporting plate.
Preferably, the cross-sectional shape of the inner cavity of the inner core is matched with that of the punch pin.
Preferably, the left side of the main clamping die is provided with an air supporting structure, and the air supporting structure comprises an air supporting roller driven by an air cylinder to move up and down.
Compared with the prior art, the invention has the advantages that: the automatic punching, hole pulling and flat head device for the stainless steel pipe, provided by the invention, can be used for simultaneously performing multiple processes such as punching, hole pulling and flat head on the same device, can realize automation in the whole process, and is beneficial to improving the production efficiency and reducing the production cost.
Drawings
Fig. 1 is a schematic overall side view of the present invention.
Fig. 2 is an overall top schematic view of the present invention.
Figure 3 is a schematic top view of the core of the present invention.
Figure 4 is a side cross-sectional schematic view of the inner core of the present invention.
Fig. 5 is a schematic view of the engagement of the punch pin and the plug in the present invention.
Fig. 6 is a schematic view of the punch pin of the present invention ejecting the plug.
Fig. 7 is a side view of a punch pin according to the present invention.
Fig. 8 is a perspective view of the punch pin of the present invention.
Fig. 9 is a partial sectional view of the plug of the present invention.
Fig. 10 is a side view of the plug of the present invention.
FIG. 11 is a schematic top view of a female die insert of the present invention.
FIG. 12 is a side cross-sectional schematic view of a female die insert of the present invention.
FIG. 13 is a schematic view of the structure of the small cart clamp die of the present invention.
FIG. 14 is a schematic top view of the primary clamp die of the present invention.
FIG. 15 is a schematic view of the inside surface of the main clamping die of the present invention.
FIG. 16 is a schematic top view of a flat-nose die of the present invention.
FIG. 17 is a side view of a flat-nose die of the present invention.
In the figure: 1. a machine platform; 2. an outer rod; 3. an inner core, 31, a top head hole, 32, a punching knife hole, 33, a punching knife, 34, a top head, 35, a chute, 36 and a concave die splice piece; 4. an inner push rod; 5. a punching needle 51 and a guide bar; 6. a trolley clamping die 61 and a main supporting plate; 7. a main clamping die 71, a semicircular groove 72 and a abdicating groove; 8. a flat-mouth clamping die 81, an arc-shaped groove 82 and a flat-head knife; 9. auxiliary clamping die 91 and auxiliary supporting plate; 10. and (4) carrying the roller by air.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further specifically described below by way of embodiments in combination with the accompanying drawings.
In the description of the present application, it should be noted that the terms "left", "right", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are merely for convenience of describing the present application and simplifying the description, and do not indicate or imply that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present application.
Example (b): an automatic stainless steel pipe punching, hole pulling and flat head device is shown in figures 1-17 and comprises a machine table 1, wherein an outer rod 2, an inner push rod 4, a trolley clamping die 6, a main clamping die 7, a flat mouth clamping die 8 and an auxiliary clamping die 9 are sequentially arranged on the machine table 1 from left to right.
Wherein the left end of outer pole 2 is fixed on board 1, and the right-hand member fixedly connected with inner core 3 of outer pole 2, outer pole 2 and inner core 3 are inside hollow structure, and the inner chamber of outer pole 2 and the inner chamber of inner core 3 communicate each other. The inner push rod 4 is movably arranged in the inner cavity of the outer rod 2, an inner push rod hydraulic cylinder is arranged at the left end of the inner push rod 4, and the output end of the inner push rod hydraulic cylinder is connected with the inner push rod 4 and used for driving the inner push rod 4 to move left and right in the inner cavity of the outer rod 2; the right end of the inner push rod 4 is fixedly connected with a punching needle 5, the punching needle 5 moves in the inner cavity of the inner core 3, and the cross-sectional shape of the inner cavity of the inner core 3 is matched with the maximum cross-sectional size of the punching needle 5.
In the above structure, the hole 32 of the hole punching cutter is easily worn by the impact of the hole punching cutter 33 and the friction of the inner wall of the hole of the stainless steel pipe after punching, or burrs are generated and the processing quality is affected, the position of the inner core 3 needs to be kept certain after the equipment is debugged (the angle and the position of the inner core need to be accurately corresponding to the main clamping die and the hole positions on the main clamping die), the process of disassembly and replacement is very complicated, in order to avoid frequent replacement of the inner core 3, in the embodiment, the top of the inner core 3 is provided with a die insert groove at the punching cutter hole 32 and the peripheral area thereof, a die insert 36 is fixedly arranged in the die insert groove through bolts, the outer surface of the die insert 36 is flush with the outer surface of the inner core 3, the die insert 36 is provided with a through hole communicated with the punching cutter hole 32, the abrasion caused by punching is born by the concave insert 36, and when serious abrasion occurs, only the die insert 36 needs to be replaced.
The trolley clamping die 6 is arranged on the machine table 1 through a main supporting plate 61, specifically, the main supporting plate 61 is arranged on the machine table 1 in a manner of moving left and right through a sliding guide rail, and is driven by a main supporting plate servo motor to move along the sliding guide rail. The trolley clamping die 6 consists of a plurality of clamping die claws which can approach to or depart from the center, is in a circular ring shape when being clamped, and is driven by an oil pump to clamp or loosen; the trolley clamping die 6 is movably sleeved outside the outer rod 2, the stainless steel pipe to be processed is sleeved outside the outer rod 2 and the inner core 3, and the end part of the stainless steel pipe extends into the trolley clamping die 6 and can be clamped or loosened by the trolley clamping die 6. In this embodiment, the main supporting plate 61 is further provided with a trolley clamping servo motor for driving the trolley clamping die 6 to rotate around the outer rod 2, so that the stainless steel pipe can be driven to rotate during processing, and an ectopic hole can be processed conveniently.
The main die clamping 7 comprises two main die clamping fixtures symmetrically arranged on two sides of the inner core, the main die clamping fixtures can be close to or far away from the inner core 3, horizontal semicircular grooves 71 are respectively arranged on the inner sides of the main die clamping fixtures, and when the main die clamping 7 clamps, the two semicircular grooves 71 form a circular channel to hold the stainless steel pipe tightly in the semicircular grooves 71 of the main die clamping. In this embodiment, the inner side of the main die clamping fixture is also vertically provided with a yielding groove 72 corresponding to the punching tool hole 32 and the plug hole 31, and the main die clamp 7 forms a through hole which is through up and down after clamping, so as to achieve the yielding effect when punching or pulling out the hole.
The flat-nose clamp die 8 is located the right side of the main clamp die 7, and comprises two symmetrical flat-nose clamp die clamps arranged on two sides of the extension line of the outer rod, the inner sides of the flat-nose clamp die clamps are close to the tops and are respectively provided with an arc-shaped groove 81, when the flat-nose clamp die 8 is clamped tightly, the two arc-shaped grooves 81 form a circular channel with an open top, a stainless steel pipe can be tightly held in the arc-shaped grooves 81 of the flat-nose clamp die, and the top opening of the stainless steel pipe is exposed. A flat head knife 82 capable of moving up and down is arranged above the flat-mouth clamping die 8, and the flat head knife 82 descends to a hole opening position and rotates to perform flat head operation on the hole opening of the stainless steel pipe.
The auxiliary clamping die 9 is located on the right side of the flat-opening clamping die 8, the auxiliary clamping die 9 is arranged on the auxiliary supporting plate 91, the auxiliary supporting plate 91 is arranged on the machine table 1 in a manner of moving left and right through a sliding rail, and the auxiliary supporting plate servo motor drives the auxiliary supporting plate servo motor to move along the sliding rail. The structure of the auxiliary clamping die 9 is approximately the same as that of the flat-mouth clamping die 8, and the auxiliary clamping die is mainly used for clamping or loosening the stainless steel pipe. The auxiliary clamping die 9 is mainly used for conveniently processing holes close to the left side of the stainless steel pipe, if the holes to be processed are located on the opposite left side of the stainless steel pipe, when a flat head process is to be performed on the stainless steel pipe, the trolley clamping die 6 can possibly interfere with the main clamping die 7, namely, the trolley clamping die 6 moves right in place, and cannot move right continuously, so that the flat head holes needed by the stainless steel pipe cannot reach the flat opening clamping die 8, at the moment, the right end of the stainless steel pipe can be sent into the middle of the auxiliary clamping die 9 through the trolley clamping die 6, the trolley clamping die 6 loosens the left end of the stainless steel pipe after the stainless steel pipe is clamped by the auxiliary clamping die 9, then the stainless steel pipe is driven to move left and right through the auxiliary clamping die 9, and the holes at the left end of the stainless steel pipe can.
In this embodiment, when the length of the stainless steel pipe to be processed is long, the self weight of the stainless steel pipe is increased, and when the main supporting plate 61 is far away from the main clamping die 7, the inner core 3 sinks due to the self weight of the right end of the stainless steel pipe, so that the position of the inner core 3 deviates from the semi-circular groove of the main clamping die 7. Therefore, in the embodiment, the air supporting structure 10 is arranged on the left side of the main clamping die 7, the air supporting structure 10 comprises an air supporting roller driven by an air cylinder to move up and down, and when the sinking amplitude of the inner core 3 is large, the air supporting roller 10 is driven by the air cylinder to ascend to support the stainless steel pipe to keep the stainless steel pipe horizontal; when the main supporting plate 61 is close to the main clamping die 7 for a certain distance (the sinking amplitude is small, the clamping of the main clamping die is not influenced, and the distance can be set), the gas-supported roller 10 sinks under the driving of the air cylinder so as to ensure the normal processing of the equipment.
In this embodiment, during installation and debugging of the equipment, it is required to ensure that the angle and position of the inner core 3 are matched with the main clamping die, that is, the top hole 31 and the punching cutter hole 32 on the inner core 3 strictly correspond to the hole formed by the abdicating groove 72 on the main clamping die 7, during specific installation, a positioning rod matched with the size of the top hole 31 is adopted for auxiliary positioning, the inner core 3 is pre-installed at the approximate position in the middle of the main clamping die 7, then the positioning rod is inserted into the top hole 31 on the inner core 3, then the main clamping die 7 is opened to clamp the main clamping die 7, the positioning rod is also clamped in the middle by the abdicating groove 72 corresponding to the top hole 31 on the main clamping die 7, and in this process, the position and angle of the inner core 3 are automatically adjusted to the state matched with the main clamping die 7; and (3) keeping the main clamping die 7 to be clamped, locking and fixing the left end of the outer rod 2, and then loosening the main clamping die 7, so that the punching needle 5 and the ejector pin 34 can be installed.
In the embodiment, when the stainless steel pipe is punched, pulled and flat-headed, firstly, the stainless steel pipe is sleeved outside the inner core 3 and the outer rod 2, the left end of the stainless steel pipe is clamped by the trolley clamping die 6, then the main supporting plate servo motor drives the main supporting plate 61 to move, a target hole position on the stainless steel pipe is positioned right below the punching knife 33, the main clamping die 7 clamps the stainless steel pipe, and the punching knife 33 punches a hole; after punching is finished, the main clamping die 7 is loosened, the main supporting plate 61 drives the trolley clamping die 6 to move left after moving right for a certain distance (the purpose of moving left after moving right for a certain distance is to remove burrs on the inner wall of a stainless steel pipe hole position by using a female die insert on an inner core), until the hole position corresponds to the position of the top 34, then the main clamping die 7 is clamped again, the inner push rod hydraulic cylinder pushes the inner push rod 4 to move right, the top 34 is pushed upwards to eject, and hole drawing is finished; then the main clamping die 7 loosens the stainless steel pipe, the main supporting plate 61 moves rightwards until the hole position corresponds to the flat-end cutter 82, then the flat-end clamping die 8 clamps the stainless steel pipe, the flat-end cutter 82 descends and carries out flat-end on the hole opening through rotation, and thus the punching, hole pulling and flat-end process of one hole on the stainless steel pipe is completed.
In this embodiment, a displacement sensor is disposed at the left end of the inner push rod 4, and is used for monitoring or controlling the pushing stroke of the inner push rod 4, so that the plug 34 moves strictly according to the set stroke. In addition, in the present embodiment, the actions and strokes of the moving components (including the driving of the punching knife and the driving of the flat-head knife, which are not described in detail in the present embodiment but are disclosed in the prior art) such as the main supporting plate 61, the auxiliary supporting plate 91, the inner push rod 4, etc. can be set and controlled by the control system, so as to realize the automation of the punching, hole pulling, and flat-head processes.
The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.
Claims (10)
1. The automatic punching, hole pulling and flat head device for the stainless steel pipe comprises a machine table and is characterized in that an outer rod and an inner core fixedly connected to the end part of the outer rod are fixedly arranged on the machine table, and the outer rod and the inner core are hollow; a trolley clamping die capable of moving along the length direction of the outer rod is sleeved outside the outer rod and used for clamping the end parts of the stainless steel pipes sleeved outside the outer rod and the inner core; the two sides of the inner core are provided with main clamping dies for clamping the stainless steel pipe during punching and hole drawing; a flat-mouth clamping die is arranged on one side, away from the trolley clamping die, of the main clamping die, and a flat-head knife capable of moving up and down and used for flat-mouth is arranged above the flat-mouth clamping die;
the inner core is provided with vertical top holes and punching knife holes at intervals, and a punching knife capable of moving up and down for punching is arranged above the punching knife holes; a top head capable of moving up and down is arranged in the top head hole, an inner push rod is arranged in the inner cavity of the outer rod, a punching needle is fixedly arranged at the end part of the inner push rod, and the inner push rod can move left and right along the inner cavity of the outer rod; the end part of the punching needle, which is far away from the inner push rod, is provided with an inclined guide strip, and the top is provided with an inclined groove matched with the guide strip, so that the top can move up and down when the inner push rod drives the punching needle to move left and right.
2. The automatic stainless steel pipe punching, hole pulling and flat head device of claim 1, wherein an inner push rod hydraulic cylinder is arranged at one end of the inner push rod, which is far away from the punching needle, and the output end of the inner push rod hydraulic cylinder is connected with the inner push rod.
3. The automatic stainless steel pipe punching, hole pulling and flat head device of claim 1, wherein a main supporting plate capable of sliding left and right along the length direction of the outer rod is arranged on the machine table, and the trolley clamping die is arranged on the main supporting plate.
4. The automatic stainless steel pipe punching, hole pulling and flat head device according to claim 3, wherein the trolley clamping die is rotatably arranged on the main supporting plate around the outer rod, and a trolley clamping die servo motor for driving the trolley clamping die to rotate is arranged on the main supporting plate.
5. The automatic stainless steel pipe punching, hole pulling and hole facing device of claim 1, wherein the main clamping die is provided with abdicating grooves corresponding to the top hole and the punching knife hole respectively.
6. The automatic punching, hole drawing and flat head device for the stainless steel pipe according to claim 1, wherein a concave die insert groove is formed in the top of the inner core at the punching knife hole, a concave die insert is fixedly arranged in the concave die insert groove, and the outer surface of the concave die insert is flush with the outer surface of the inner core.
7. The automatic stainless steel pipe punching, hole pulling and flat head device of claim 1, wherein an auxiliary clamping die capable of moving left and right is further arranged at the tail of the machine table.
8. The automatic stainless steel pipe punching, hole pulling and flat head device of claim 7, wherein an auxiliary supporting plate capable of moving left and right is arranged at the tail of the machine table, and the auxiliary clamping die is arranged on the auxiliary supporting plate.
9. The automatic stainless steel pipe punching, hole drawing and flat head device of claim 1, wherein the cross-sectional shape of the inner cavity of the inner core is matched with that of the punching needle.
10. The automatic stainless steel pipe punching, hole pulling and flat head device of claim 1, wherein an air supporting structure is arranged on the left side of the main clamping die, and the air supporting structure comprises an air supporting roller driven by an air cylinder to move up and down.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011577610.XA CN112846784A (en) | 2020-12-28 | 2020-12-28 | Automatic punching, hole pulling and flat head device for stainless steel pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011577610.XA CN112846784A (en) | 2020-12-28 | 2020-12-28 | Automatic punching, hole pulling and flat head device for stainless steel pipe |
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| Publication Number | Publication Date |
|---|---|
| CN112846784A true CN112846784A (en) | 2021-05-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011577610.XA Pending CN112846784A (en) | 2020-12-28 | 2020-12-28 | Automatic punching, hole pulling and flat head device for stainless steel pipe |
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| Country | Link |
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| CN (1) | CN112846784A (en) |
Cited By (2)
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| CN114713709A (en) * | 2022-05-06 | 2022-07-08 | 泰州市巨久不锈钢有限公司 | Irregular pipe body stamping equipment |
| WO2023232160A1 (en) * | 2022-09-14 | 2023-12-07 | 吉林化工学院 | Fixture device for punching machine |
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| CN201470758U (en) * | 2009-08-20 | 2010-05-19 | 广东精艺金属股份有限公司 | Punching and flanging machine |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114713709A (en) * | 2022-05-06 | 2022-07-08 | 泰州市巨久不锈钢有限公司 | Irregular pipe body stamping equipment |
| WO2023232160A1 (en) * | 2022-09-14 | 2023-12-07 | 吉林化工学院 | Fixture device for punching machine |
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Application publication date: 20210528 |
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| RJ01 | Rejection of invention patent application after publication |