CN113600676A - Pipe fitting joint punching equipment - Google Patents

Pipe fitting joint punching equipment Download PDF

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Publication number
CN113600676A
CN113600676A CN202111058466.3A CN202111058466A CN113600676A CN 113600676 A CN113600676 A CN 113600676A CN 202111058466 A CN202111058466 A CN 202111058466A CN 113600676 A CN113600676 A CN 113600676A
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CN
China
Prior art keywords
punching
assembly
punch
pipe fitting
support seat
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Granted
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CN202111058466.3A
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Chinese (zh)
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CN113600676B (en
Inventor
庞燕忠
谷凤玲
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Yantai Dongxing Air Conditioner Pipeline Co ltd
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Yantai Dongxing Air Conditioner Pipeline Co ltd
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Priority to CN202111058466.3A priority Critical patent/CN113600676B/en
Publication of CN113600676A publication Critical patent/CN113600676A/en
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Publication of CN113600676B publication Critical patent/CN113600676B/en
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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
    • 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
    • B21D28/02—Punching blanks or articles with or without obtaining scrap; Notching
    • B21D28/04—Centering the work; Positioning the tools
    • 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
    • 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
    • B21D37/04—Movable or exchangeable mountings for tools
    • 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
    • B21D37/10—Die sets; Pillar guides
    • 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
    • B21D45/00—Ejecting or stripping-off devices arranged in machines or tools dealt with in this subclass
    • B21D45/06—Stripping-off devices
    • B21D45/08—Stripping-off devices interrelated with motion of tool
    • 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
    • B21D53/00—Making other particular articles
    • B21D53/88—Making other particular articles other parts for vehicles, e.g. cowlings, mudguards

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Punching Or Piercing (AREA)

Abstract

本发明涉及一种管件接头冲孔设备，其包括上工作台和下工作台，所述下工作台上设有下模具组件、和设置在所述下模具组件一侧的冲孔凹模，所述下模具组件以沿X轴方向能够左右滑动的方式安装在下工作台上；所述上工作台上设有冲孔组件和上模具组件，所述冲孔组件和上模具组件以沿Y轴方向上下移动的方式安装在上工作台上；所述冲孔组件包括冲头，所述冲头与所述冲孔凹模上下对应设置，所述上模具组件与所述下模具组件上下对应设置。本发明通过将管件接头安装到下模具组件上，能实现管件接头的快速定位和冲孔。

Figure 202111058466

The invention relates to a punching equipment for pipe fittings, which comprises an upper workbench and a lower workbench. The lower workbench is provided with a lower die assembly and a punching die set on one side of the lower die assembly. The lower die assembly is installed on the lower worktable in a manner that can slide left and right along the X-axis direction; the upper worktable is provided with a punching assembly and an upper die assembly, and the punching assembly and the upper die assembly are arranged along the Y-axis direction. It is installed on the upper worktable in a way of moving up and down; the punching assembly includes a punch, and the punch is arranged correspondingly up and down with the punching die, and the upper die assembly and the lower die assembly are arranged correspondingly up and down. The invention can realize the quick positioning and punching of the pipe fitting by installing the pipe fitting on the lower die assembly.

Figure 202111058466

Description

Pipe fitting joint punching equipment
Technical Field
The invention relates to pipe fitting joint punching equipment, and belongs to the technical field of punching equipment.
Background
The pipe fitting joint is one of automobile parts and is mainly used for connecting automobile pipelines. When the pipe fitting connects with the pipeline, the leakproofness of connector department will be guaranteed promptly, the accuracy of connection angle will be guaranteed again, in order to guarantee the leakproofness, current pipe fitting connects the mode that generally adopts mouth of pipe back-off, at the specific position punching press breach of mouth of pipe wall simultaneously, guarantees the assembly angle, promptly in connecting and pipeline assembling process, makes the breach that connects aim at the assembly with the specific position of pipeline (if have the position of sign).
However, when the pipe joint with the inverted pipe orifice is punched with a notch on the pipe wall of the pipe orifice, the female die is difficult to be taken out of the joint quickly after punching due to the interference of the female die and the inverted pipe orifice, and the punching efficiency is low.
Disclosure of Invention
The present invention aims to provide a new technical solution to improve or solve the technical problems in the prior art as described above.
The invention provides pipe fitting joint punching equipment which comprises an upper workbench and a lower workbench, wherein the lower workbench is provided with a lower die assembly and a punching female die arranged on one side of the lower die assembly, and the lower die assembly is arranged on the lower workbench in a manner of sliding left and right along the X-axis direction;
the upper workbench is provided with a punching assembly and an upper die assembly, and the punching assembly and the upper die assembly are arranged on the upper workbench in a mode of moving up and down along the Y-axis direction;
the punching assembly comprises a punch, the punch and the punching female die are arranged in a vertically corresponding mode, and the upper die assembly and the lower die assembly are arranged in a vertically corresponding mode.
Further, the lower die assembly comprises a first supporting seat and a pipe supporting locating block, a lower locating groove is formed in the pipe supporting locating block, the pipe supporting locating block is installed on the first supporting seat through a plurality of compression springs I, the pipe supporting locating block is further provided with a guide column between the first supporting seat, a slide is arranged on the lower workbench, and the first supporting seat is installed in the slide of the lower workbench.
Furthermore, the punching female die is provided with a concave part and a punching pad, the concave part is vertically matched with the punch, and the punching pad is inserted into a pipe of the pipe joint to be punched to support the pipe joint to be punched.
The lower workbench is fixedly arranged on the lower workbench, the lower die assembly is arranged on the lower workbench, the push-pull clamp is arranged on the lower workbench and comprises a pull rod, the pull rod is connected with the lower die assembly, and the push-pull clamp is used for pulling the lower die assembly to slide left and right along the X-axis direction.
Furthermore, go up the mould subassembly and include second supporting seat and compact heap, be equipped with on the compact heap with lower constant head tank complex goes up the constant head tank, second supporting seat one end with the subassembly that punches a hole is connected, the compact heap is installed through a plurality of compression spring II the lower part of second supporting seat, still be equipped with the guide post between second supporting seat and the compact heap.
Furthermore, the punching assembly further comprises a punching head seat, a vertical slide rail is arranged on the upper workbench, the punching head seat is mounted on the vertical slide rail of the upper workbench in a mode of moving up and down along the Y-axis direction, and the punching head is mounted at the lower part of the punching head seat.
Furthermore, a driving motor is further arranged on the punching equipment, and the driving motor drives the punch seat to drive the punch and the upper die assembly to synchronously move up and down along the Y axis.
Further, still include first spring post, first spring post cover is established in the middle of compression spring I, first spring post one end links firmly with trusteeship locating piece, the other end slidable of first spring post passes first supporting seat.
Furthermore, the device also comprises a second spring column, wherein the second spring column is sleeved in the middle of the compression spring II, one end of the second spring column is fixedly connected with the pressing block, and the other end of the second spring column can slidably penetrate through the second supporting seat.
Furthermore, the wire diameter of the compression spring I is smaller than that of the compression spring II.
The invention has the beneficial effects that:
1. according to the invention, the pipe fitting joint is arranged on the lower die assembly, so that the pipe fitting joint can be quickly positioned and punched;
2. the pipe supporting positioning block is arranged on the first supporting seat through the compression springs I, and after punching is finished, the pipe supporting positioning block can be quickly bounced to enable the punching pad foot of the female die to be far away from the inverted buckling position of the pipe fitting joint, so that the punching pad foot of the punching female die can be conveniently taken out of the joint, the problem that the pipe fitting joint with the inverted buckling structure is inconvenient to separate from the punching female die after punching is solved, and punching efficiency is improved;
3. the traction rod of the push-pull type clamp is connected with the lower die assembly, the lower die assembly is pulled to slide left and right along the X-axis direction, after a pipe fitting joint is placed on the supporting pipe positioning block, the push-pull type clamp is pushed to enable the lower die assembly to stop after reaching a punching position, equipment is started and punched, the equipment is reset after the punching is finished, the push-pull type clamp is pushed in the opposite direction to enable the lower die assembly to leave the punching position, and finally the pipe fitting joint is taken out;
4. according to the invention, as the wire diameter of the compression spring II is larger than that of the compression spring I, after the equipment is started, the pressing block is contacted with the supporting pipe positioning block, so that the pipe fitting joint is more easily pressed;
5. according to the arrangement of the guide column, the first spring column and the second spring column, the position accuracy of the pressing block and the supporting tube positioning block in the vertical matching process is ensured.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of a punching apparatus according to the present invention;
FIG. 3 is a schematic view of a component mounting structure on the lower table of the present invention;
FIG. 4 is a schematic view of the installation structure of the pipe fitting joint and the punching female die of the invention;
FIG. 5 is a schematic view of a pipe joint configuration before punching;
FIG. 6 is a schematic view of a structure of a pipe joint after punching;
in the drawing, 1, an upper workbench, 2, a lower workbench, 3, a lower die assembly, 301, a first support seat, 302, a supporting tube positioning block, 303, a lower positioning groove, 304, a compression spring I, 4, a punching die, 401, a punching die body, 402, a concave part, 403, a punching pad foot, 5, a punching assembly, 501, a punch, 502, a support rod, 503, a punch seat, 504, a driving motor, 6, an upper die assembly, 601, a second support seat, 602, a pressing block, 603, an upper positioning groove, 604, a compression spring II, 7, a push-pull clamp, 701, a traction rod, 702, a sliding block and 8, a pipe joint are adopted.
Detailed Description
The principles and features of this invention are described below in conjunction with examples, which are set forth to illustrate, but are not to be construed to limit the scope of the invention.
As shown in fig. 1 to 4, the present invention provides a pipe fitting joint punching apparatus, which includes an upper table 1 and a lower table 2, wherein the lower table 2 is provided with a lower die assembly 3 and a punching female die 4 arranged at one side of the lower die assembly, and the lower die assembly 3 is mounted on the lower table 2 in a manner of being capable of sliding left and right along an X-axis direction; the upper workbench 1 is provided with a punching assembly 5 and an upper die assembly 6, and the punching assembly 5 and the upper die assembly 6 are arranged on the upper workbench in a manner of moving up and down along the Y-axis direction; the punching assembly 5 comprises a punch 501, the punch 501 and the punching female die 4 are arranged up and down correspondingly, and the upper die assembly 6 and the lower die assembly 3 are arranged up and down correspondingly.
Lower mould subassembly 3 includes first support seat 301 and trusteeship locating piece 302, trusteeship locating piece 302 is last to be equipped with down constant head tank 303, constant head tank 303 is confirmed according to the pattern of waiting to punch a hole pipe fitting joint 8 down, trusteeship locating piece 302 is installed through a plurality of compression spring I304 on first support seat 301, trusteeship locating piece 302 with still be equipped with the guide post between the first support seat 301, first support seat 301 is installed in the slide of workstation 2 down, be equipped with first spring post in the middle of the compression spring I304, first spring post one end links firmly with trusteeship locating piece 302, the other end slidable of first spring post passes first support seat 301. The guide column and the first spring column guide the supporting tube positioning block 302 in the processes of downward compression and upward springing, so that the supporting tube positioning block 302 is not deviated in the processes of compression and springing.
Go up mould subassembly 6 and include second supporting seat 601 and compact heap 602, be equipped with on the compact heap 602 with lower constant head tank 303 complex goes up constant head tank 603, second supporting seat 601 one end with punch a hole subassembly 5 is connected, compact heap 602 is installed through a plurality of compression springs II 604 the lower part of second supporting seat 601, still be equipped with the guide post between second supporting seat 601 and the compact heap 602, be equipped with the second spring post in the middle of the compression spring II 604, second spring post one end links firmly with compact heap 602, the other end slidable of second spring post passes second supporting seat 601. The guide column and the second spring column enable the pressing block 602 to play a guiding role in the processes of downward compression and upward bouncing, so that the compression and bouncing processes of the pressing block 602 do not deviate.
The wire diameter of the compression spring I304 is smaller than that of the compression spring II 604, so that after the equipment is started, the pressing block 602 is in contact with the supporting positioning block 302, and the pipe fitting joint 8 is pressed more easily.
The punching die 4 comprises a punching die body 401, a concave part 402 and a punching pad 403, the punching die body 401 is fixed on the lower workbench 2, the punching pad 403 is inserted into an inner hole of a workpiece to be punched, the pipe joint 8 to be punched is supported during punching, the pipe end deformation of the pipe joint 8 to be punched is prevented, and the concave part 402 is used for being matched with the punch 501 up and down to punch the pipe joint 8 to be punched.
Still be equipped with push-pull type clamp 7 on the punching equipment, push-pull type clamp 7 fixed mounting be in on the lower workstation 2 and be located one side of bed die component 3, push-pull type clamp 7 includes traction lever 701, traction lever 701 through sliding block 702 with bed die component 3 is connected, sliding block 702 sets up on the first supporting seat 301, push-pull type clamp 7 is used for pulling bed die component 3 slides from side to side along the X axle direction.
The punching assembly 5 further comprises a supporting rod 502 and a punch seat 503, a vertical slide rail is arranged on the upper workbench 1, the punch seat 503 is mounted on the vertical slide rail of the upper workbench 1 in a mode of moving up and down along the Y-axis direction, the punch 501 is mounted at the lower part of the punch seat 503 through the supporting rod 502, the second supporting seat 601 is connected with the punch seat 503 through the supporting rod 502, and the second supporting seat 601 is arranged at one side of the punch 501. The punching equipment is further provided with a driving motor 504, and the driving motor 504 drives the punch base 503 to drive the punch 501 and the upper die assembly 6 to synchronously move up and down along the Y axis.
The punching process of the punching equipment of the invention is as follows:
firstly, placing a pipe fitting joint 8 to be punched into a lower positioning groove 303 of a supporting pipe positioning block 302, pushing a push-pull clamp 7 to enable a lower die assembly 3 to slide towards a punching female die 4 along the X-axis direction after the pipe fitting joint 8 is placed in place, and enabling a punching pad 403 of the punching female die 4 to be inserted into an inner hole of the pipe fitting joint 8;
secondly, starting the equipment, driving the punch 501 and the pressing block 602 to move downwards by the punch seat 503, firstly, the pressing block 602 contacts with the supporting pipe positioning block 302 and presses the pipe fitting joint 8, and then, the punch 501 is vertically matched with the concave part 402 to punch a notch on the pipe wall of the pipe fitting joint 8;
thirdly, the punch seat 503 drives the punch 501 and the pressing block 602 to move upwards, and pushes the push-pull clamp 7 to enable the lower die assembly 3 to slide along the X-axis direction back to the punching die 4, so that the pipe fitting joint 8 is separated from the punching die 4, the punched pipe fitting joint 8 is taken out, and the punching is finished.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims (10)

1.一种管件接头冲孔设备，其包括上工作台和下工作台，其特征在于，所述下工作台上设有下模具组件、和设置在所述下模具组件一侧的冲孔凹模，所述下模具组件以沿X轴方向能够左右滑动的方式安装在下工作台上；1. A pipe fitting punching device, comprising an upper workbench and a lower workbench, wherein the lower workbench is provided with a lower die assembly and a punching concave on one side of the lower die assembly. a mold, the lower mold assembly is installed on the lower worktable in a manner that can slide left and right along the X-axis direction; 所述上工作台上设有冲孔组件和上模具组件，所述冲孔组件和上模具组件以沿Y轴方向上下移动的方式安装在上工作台上；The upper worktable is provided with a punching assembly and an upper die assembly, and the punching assembly and the upper die assembly are installed on the upper worktable by moving up and down along the Y-axis direction; 所述冲孔组件包括冲头，所述冲头与所述冲孔凹模上下对应设置，所述上模具组件与所述下模具组件上下对应设置。The punching assembly includes a punch, the punch is disposed up and down correspondingly with the punching die, and the upper mold assembly and the lower mold assembly are disposed up and down correspondingly. 2.根据权利要求1所述的管件接头冲孔设备，其特征在于，所述下模具组件包括第一支撑座和托管定位块，所述托管定位块上设有下定位槽，所述托管定位块通过若干压缩弹簧Ⅰ安装在所述第一支撑座上，所述托管定位块与所述第一支撑座之间还设有导向柱，所述下工作台上设有滑道，所述第一支撑座安装在所述滑道内。2 . The pipe fitting punching equipment according to claim 1 , wherein the lower die assembly comprises a first support seat and a hosting positioning block, the hosting positioning block is provided with a lower positioning groove, and the hosting positioning The block is installed on the first support seat through a number of compression springs I, a guide column is also provided between the hosting positioning block and the first support seat, a slideway is provided on the lower worktable, and the first support seat is provided with a guide post. A support seat is installed in the slideway. 3.根据权利要求1所述的管件接头冲孔设备，其特征在于，所述冲孔凹模上设有凹陷部和冲孔垫脚，所述凹陷部与所述冲头上下配合，所述冲孔垫脚对待冲孔管件接头起支撑作用。3 . The pipe fitting punching equipment according to claim 1 , wherein the punching die is provided with a concave portion and a punching pad, the concave portion is matched with the punch up and down, and the punch is 3. 4 . The hole foot supports the joint of the pipe fitting to be punched. 4.根据权利要求1所述的管件接头冲孔设备，其特征在于，还包括推拉式夹钳，所述推拉式夹钳包括牵引杆，所述推拉式夹钳固定安装在所述下工作台上位于所述下模具组件的一侧，所述牵引杆与所述下模具组件连接，所述推拉式夹钳用于牵引所述下模具组件沿X轴方向左右滑动。4 . The pipe fitting punching equipment according to claim 1 , further comprising a push-pull clamp, the push-pull clamp comprising a drawbar, and the push-pull clamp is fixedly installed on the lower table. 5 . The upper part is located on one side of the lower mold assembly, the pulling rod is connected with the lower mold assembly, and the push-pull clamp is used to pull the lower mold assembly to slide left and right along the X-axis direction. 5.根据权利要求1所述的管件接头冲孔设备，其特征在于，所述上模具组件包括第二支撑座和压紧块，所述压紧块上设有与所述下定位槽配合的上定位槽，所述第二支撑座一端与所述冲孔组件连接，所述压紧块通过若干压缩弹簧Ⅱ安装在所述第二支撑座的下部，所述第二支撑座与压紧块之间还设有导向柱。5 . The punching equipment for pipe fittings according to claim 1 , wherein the upper die assembly comprises a second support seat and a pressing block, and the pressing block is provided with a fitting matched with the lower positioning groove. 6 . upper positioning groove, one end of the second support seat is connected to the punching assembly, the pressing block is installed on the lower part of the second support seat through a number of compression springs II, the second support seat and the pressing block There are also guide posts in between. 6.根据权利要求5所述的管件接头冲孔设备，其特征在于，所述冲孔组件还包括冲头座，所述上工作台上设有竖直滑轨，所述冲头座以沿Y轴方向能够上下移动的方式安装在所述上工作台的竖直滑轨上，所述冲头安装在所述冲头座的下部。6 . The pipe fitting punching equipment according to claim 5 , wherein the punching assembly further comprises a punch seat, a vertical slide rail is provided on the upper worktable, and the punch seat is formed along the It is mounted on the vertical slide rail of the upper worktable in a way that the Y-axis direction can move up and down, and the punch is mounted on the lower part of the punch seat. 7.根据权利要求6所述的管件接头冲孔设备，其特征在于，所述冲孔设备上还设有驱动电机，所述驱动电机驱动所述冲头座带动所述冲头和所述上模具组件同步沿Y轴上下移动。7 . The pipe fitting punching equipment according to claim 6 , wherein a driving motor is further provided on the punching equipment, and the driving motor drives the punch seat to drive the punch and the upper The mold assembly moves up and down along the Y axis synchronously. 8.根据权利要求2所述的管件接头冲孔设备，其特征在于，还包括第一弹簧柱，所述第一弹簧柱套设在所述压缩弹簧Ⅰ中间，所述第一弹簧柱一端与托管定位块固连，所述第一弹簧柱的另一端可滑动的穿过所述第一支撑座。8 . The pipe fitting punching equipment according to claim 2 , further comprising a first spring column, the first spring column is sleeved in the middle of the compression spring I, and one end of the first spring column is connected to the compression spring I. 9 . The managed positioning block is fixedly connected, and the other end of the first spring column slidably passes through the first support seat. 9.根据权利要求5所述的管件接头冲孔设备，其特征在于，还包括第二弹簧柱，所述第二弹簧柱套设在所述压缩弹簧Ⅱ中间，所述第二弹簧柱一端与压紧块固连，所述第二弹簧柱的另一端可滑动的穿过所述第二支撑座。9 . The pipe fitting punching equipment according to claim 5 , further comprising a second spring column, the second spring column is sleeved in the middle of the compression spring II, and one end of the second spring column is connected to the compression spring II. 10 . The pressing block is fixedly connected, and the other end of the second spring column slidably passes through the second support seat. 10.根据权利要求2或5所述的管件接头冲孔设备，其特征在于，所述压缩弹簧Ⅰ的线径小于所述压缩弹簧Ⅱ的线径。10. The pipe fitting punching equipment according to claim 2 or 5, wherein the wire diameter of the compression spring I is smaller than the wire diameter of the compression spring II.
CN202111058466.3A 2021-09-09 2021-09-09 Pipe fitting joint punching equipment Active CN113600676B (en)

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KR100613008B1 (en) * 2005-04-11 2006-08-16 황인규 Refrigerant pipe connection hole drilling apparatus and heat drilling method of header pipe for heat exchanger
CN201693063U (en) * 2010-06-30 2011-01-05 重庆理工大学 A punching die for pipe fittings driven by solid particles
CN102921801A (en) * 2012-11-06 2013-02-13 柳州市昌河模具厂 Molding method for trailing arm beam of rear axle bracket assembly of automobile
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KR20160099230A (en) * 2015-02-12 2016-08-22 배상율 Piercing die sets for press
CN205949644U (en) * 2016-06-08 2017-02-15 张家港市顺利针织制衣有限公司 Full -automatic stamping device
CN105921576A (en) * 2016-06-22 2016-09-07 浙江炜驰机械集团有限公司 Bent pipe projection punching device
CN207735404U (en) * 2017-12-26 2018-08-17 厦门美尼斯金属制造有限公司 Hand punch
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CN210475185U (en) * 2019-08-10 2020-05-08 无锡市普发精密机械有限公司 Automobile pipe fitting cut-out press
CN211515771U (en) * 2019-12-25 2020-09-18 泰亿机械工业（江苏）有限公司 Frame punching device before non-folding car
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CN215998286U (en) * 2021-09-09 2022-03-11 烟台东星空调管路有限公司 Pipe fitting joint punching equipment

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