CN113275400A - Special drawing equipment for stainless steel cross pipe - Google Patents
Special drawing equipment for stainless steel cross pipe Download PDFInfo
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- CN113275400A CN113275400A CN202110699329.1A CN202110699329A CN113275400A CN 113275400 A CN113275400 A CN 113275400A CN 202110699329 A CN202110699329 A CN 202110699329A CN 113275400 A CN113275400 A CN 113275400A
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- stainless steel
- die
- die holder
- spherical
- core print
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C1/00—Manufacture of metal sheets, wire, rods, tubes or like semi-manufactured products by drawing
- B21C1/16—Metal drawing by machines or apparatus in which the drawing action is effected by means other than drums, e.g. by a longitudinally-moved carriage pulling or pushing the work or stock for making metal sheets, rods or tubes
- B21C1/22—Metal drawing by machines or apparatus in which the drawing action is effected by means other than drums, e.g. by a longitudinally-moved carriage pulling or pushing the work or stock for making metal sheets, rods or tubes specially adapted for making tubular articles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C19/00—Devices for straightening wire or like work combined with or specially adapted for use in connection with drawing or winding machines or apparatus
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C3/00—Profiling tools for metal drawing; Combinations of dies and mandrels for metal drawing
- B21C3/02—Dies; Selection of material therefor; Cleaning thereof
- B21C3/06—Dies; Selection of material therefor; Cleaning thereof with adjustable section
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C3/00—Profiling tools for metal drawing; Combinations of dies and mandrels for metal drawing
- B21C3/02—Dies; Selection of material therefor; Cleaning thereof
- B21C3/12—Die holders; Rotating dies
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Metal Extraction Processes (AREA)
Abstract
本发明公开了一种不锈钢十字管的专用拉拔设备，包括设置在机架上的牵引机构和电气控制箱，还包括有沿拉拔方向依次设置在机架上的芯头定位机构、支撑机构、矫直机构和模具模座组件；芯头定位机构用于定位调节与模具模座组件的相对位置；支撑机构用于支撑不锈钢管和芯头；矫直机构用于矫正不锈钢管与模具模座组件保持同心并在拉拔的过程中压紧不锈钢管；模具模座组件用于对不锈钢异型管的直线度进行微调节。本发明中的拉拔设备可以先通过矫直机构对不锈钢管进行预先矫直，保证不锈钢管在拉拔的过程中始终能够与拉拔模具保持同心，使拉拔更为稳定，同时通过压紧轮压紧不锈钢管，又能防止在拉拔的过程中由于后部伸出过长而出现震荡现象。
The invention discloses a special drawing equipment for stainless steel cross tubes, which includes a traction mechanism and an electrical control box arranged on a frame, and also includes a core head positioning mechanism and a support mechanism that are sequentially arranged on the frame along the drawing direction. , straightening mechanism and mold base assembly; core head positioning mechanism is used to position and adjust the relative position of the mold base assembly; support mechanism is used to support stainless steel pipe and core head; straightening mechanism is used to straighten stainless steel pipe and mold base. The assembly remains concentric and compresses the stainless steel tube during the drawing process; the die base assembly is used to fine-tune the straightness of the stainless steel special-shaped tube. The drawing equipment in the present invention can firstly straighten the stainless steel tube through the straightening mechanism, so as to ensure that the stainless steel tube can always be kept concentric with the drawing die during the drawing process, so that the drawing is more stable, and at the same time, by pressing The wheel compresses the stainless steel tube, which can also prevent the oscillation phenomenon due to the excessive extension of the rear part during the drawing process.
Description
Technical Field
The invention relates to the field of stainless steel pipe processing, in particular to special drawing equipment for a stainless steel cross pipe.
Background
Stainless steel tubes are widely used in military products, light industrial products, mechanical instrument products and the like due to the advantages of good mechanical properties, high hardness, high wear resistance and the like. Stainless steel pipes are generally classified into seamless pipes and welded pipes, and the seamless pipes are generally manufactured by hot rolling, cold rolling or cold drawing. The thicker the wall thickness of the stainless steel seamless pipe is, the more economical and practical the stainless steel seamless pipe is, the thinner the wall thickness is, the larger the processing cost of the stainless steel seamless pipe is, particularly, the thinner the thin-wall special pipe with higher precision is, in the drawing process, along with the increase of the length of the steel pipe, the straightness of the thin-wall special pipe is difficult to guarantee, the conventional processing method cannot meet the precision of the special pipe, and the requirement of customers can be met only by processing the thin-wall special pipe on special equipment.
Disclosure of Invention
The present invention is directed to solving, at least to some extent, one of the technical problems in the related art. Therefore, the invention aims to provide special drawing equipment for a stainless steel cross tube, wherein a stainless steel tube is always consistent with the center of a die in the drawing process, so that the drawing process is more stable, and the quality of a drawn finished product is effectively guaranteed.
The invention provides special drawing equipment for a stainless steel cross pipe, which comprises a traction mechanism and an electric control box which are arranged on a rack, and further comprises a core print positioning mechanism, a supporting mechanism, a straightening mechanism and a die holder assembly which are sequentially arranged on the rack along a drawing direction;
the core print positioning mechanism is used for positioning and adjusting the relative position of the core print and the die holder assembly;
the supporting mechanism is used for supporting the stainless steel pipe and the core print;
the straightening mechanism is used for straightening the stainless steel pipe and keeping the stainless steel pipe and the die holder assembly concentric and pressing the stainless steel pipe in the drawing process;
the die holder assembly is used for micro-adjusting the straightness of the stainless steel special pipe.
Preferably, the traction mechanism comprises linear guide rails erected on two sides of the traction mechanism along the length direction of the rack, two sliding blocks are connected to each linear guide rail in a sliding mode, the tops of the four sliding blocks are connected to the sliding seat together, a motor is fixedly mounted on the rack, the output end of the motor is connected with a ball screw through an elastic coupling, the bottom of the sliding seat is in threaded connection with the ball screw, and a clamping assembly used for clamping the stainless steel pipe is arranged on the sliding seat.
Preferably, the clamping assembly comprises a support frame and a pneumatic die holder, the support frame is fixed on the sliding seat, the pneumatic die holder is installed on the support frame, a pneumatic chuck is arranged inside the pneumatic die holder, and a spring chuck is installed inside the pneumatic chuck.
Preferably, the mould die holder subassembly is including spherical die holder, the inside of spherical die holder is provided with spherical mould, the inside of spherical mould is provided with drawing die, draw die and spherical mould between be connected through the key-type and fasten with the clamp plate, through spherical surface cooperation between spherical die holder and the spherical mould, and compress tightly through four first adjusting bolt, also through spherical surface cooperation between four first adjusting bolt and the spherical mould, and four first adjusting bolt evenly distributed are on spherical mould, down, a left side, four directions in the right side, it has the scale all to etch on every first adjusting bolt's the terminal surface, adjust the straightness accuracy of stainless steel mechanical tubes through adjusting the degree of compressing tightly of first adjusting bolt in four directions.
Preferably, the core print positioning mechanism comprises a core print positioning frame, a positioning groove is formed in the core print positioning frame, a positioning rod is placed in the positioning groove, one end of the positioning rod penetrates through the core print positioning frame to form a threaded connection and is connected with an adjusting nut, and the other end of the positioning rod is connected with the core print through a connecting rod.
Preferably, the supporting mechanism comprises a bracket and a carrier roller arranged on the bracket in a rolling manner through a bearing.
Preferably, straightening mechanism is including fixing the mounting panel in the frame, three groove has been seted up to the preceding terminal surface of mounting panel, every inslot is connected with two guide posts along vertical direction, the guide block has been cup jointed in the slip on the guide post, the top of guide block is connected with second adjusting bolt, and second adjusting bolt upwards extends to the mounting panel outside, the spring has still been cup jointed on the guide post, the top and the guide block of spring link to each other, the bottom links to each other with the tank bottom of mounting panel, all rotate on the preceding terminal surface of guide block and the preceding terminal surface of mounting panel and install the pinch roller of mutually supporting.
The beneficial effects of the invention are as follows: the drawing equipment can pre-straighten the stainless steel pipe through the straightening mechanism before drawing the stainless steel pipe, so that the stainless steel pipe can be always concentric with the drawing die in the drawing process, the drawing is more stable, meanwhile, the stainless steel pipe is pressed through the pressing wheel, the oscillation phenomenon caused by the fact that the rear part of the stainless steel pipe extends too long in the drawing process can be prevented, and the drawing forming quality of the stainless steel pipe is guaranteed. In addition, the spherical die and the spherical die holder in the die holder assembly are matched by spherical surfaces and are pressed by four first adjusting bolts, the four first adjusting bolts are matched with the spherical die by the spherical surfaces and are uniformly distributed in the upper, lower, left and right directions of the spherical die, scales are etched on the end surface of each first adjusting bolt, the pressing degree of the first adjusting bolts in the four directions is adjusted, the corresponding scales are read, the linearity of the stainless steel special-shaped pipe is adjusted, the drawing quality of the stainless steel pipe is guaranteed, and the whole device is suitable for drawing operation of various stainless steel pipes with different special shapes.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic view of the overall structure of a special drawing apparatus for stainless steel cross tubes according to the present invention;
FIG. 2 is a schematic drawing of a stainless steel cross in accordance with the present invention in a drawn state;
FIG. 3 is a schematic view of the traction mechanism of the present invention;
FIG. 4 is a schematic plan view of a die holder assembly of the present invention;
FIG. 5 is a partial cross-sectional view of the die block assembly of FIG. 4;
FIG. 6 is a schematic view showing the structure of the straightening mechanism in the present invention.
In the figure: 100. a traction mechanism; 101. a motor; 102. a ball screw; 103. a linear guide rail; 104. a slider; 105. a support frame; 106. a pneumatic die holder; 107. a pneumatic chuck; 200. an electrical control box; 300. a die shoe assembly; 301. a spherical die holder; 302. a spherical mold; 303. drawing the die; 304. a first adjusting bolt; 305. a key; 306. pressing a plate; 400. a straightening mechanism; 401. a second adjusting bolt; 402. a pinch roller; 403. a guide block; 404. a guide post; 405. a spring; 406. mounting a plate; 500. a support mechanism; 600. a core print positioning frame; 601. a core print; 602. a connecting rod; 603. positioning a rod; 604. adjusting the nut; 700. a frame; 800. stainless steel tubes.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
The embodiment of the invention discloses special drawing equipment for a stainless steel cross pipe, which comprises a traction mechanism 100 and an electric control box 200 which are arranged on a rack 700, and further comprises a core print positioning mechanism, a supporting mechanism 500, a straightening mechanism 400 and a die holder assembly 300 which are sequentially arranged on the rack 700 along the drawing direction. The core print positioning mechanism is fixed at the end of the frame 700 and is used for positioning and adjusting the relative position of the core print 601 and the die holder assembly 300. The supporting mechanism 500 is used for supporting the stainless steel tube 800 and the core print 601, and ensuring that the centers of the stainless steel tube 800 and the drawing die 303 are on the same plane. The straightening mechanism 400 is used for straightening the stainless steel pipe 800 to be concentric with the die holder assembly 300 and pressing the stainless steel pipe 800 in the drawing process, so that the center of the stainless steel pipe 800 can be kept consistent with the center of the drawing die 303, and the phenomenon of oscillation caused by too long rear part extension in the drawing process of the stainless steel pipe 800 can be prevented. The die holder assembly 300 is used for fine adjustment of the straightness of the stainless steel special pipe.
Specifically, as shown in fig. 3, the traction mechanism 100 in this embodiment includes linear guide rails 103 erected on two sides of a machine frame 700 along a length direction thereof, each linear guide rail 103 is connected with two sliding blocks 104 in a sliding manner, tops of the four sliding blocks 104 are connected to a sliding base together, a motor 101 is further fixedly mounted on the machine frame 700, an output end of the motor 101 is connected with a ball screw 102 through an elastic coupling, a bottom of the sliding base is connected with the ball screw 102 in a threaded manner, the rotation of the motor 101 drives the ball screw 102 to rotate, so that the sliding base moves back and forth along the linear guide rails 103, in addition, photoelectric sensors are mounted on two sides of the ball screw 102 and used for protecting the sliding base and moving the sliding base within a safety range. The slide is provided with a clamping assembly for clamping the stainless steel tube 800.
Further, the clamping assembly comprises a support frame 105 and a pneumatic die holder 106, the support frame 105 is fixed on the sliding base, the pneumatic die holder 106 is installed on the support frame 105, a pneumatic chuck 107 is arranged inside the pneumatic die holder 106, a spring chuck is installed in the pneumatic chuck 107, and the stainless steel tube 800 is clamped by the pneumatic chuck 107 with the spring chuck.
As shown in fig. 4 and 5, the die holder assembly 300 of the present embodiment includes a spherical die holder 301, a spherical die 302 is disposed inside the spherical die holder 301, a drawing die 303 is disposed inside the spherical die 302, the drawing die 303 and the spherical die 302 are connected by a key 305 and fastened by a pressing plate 306, and the key 305 can prevent the drawing die 303 from rotating during drawing; the pressing plate 306 is adopted for fastening, so that the drawing die 303 can be prevented from popping out of the spherical die 302 due to recoil force generated by drawing after drawing is finished, the spherical die holder 301 is matched with the spherical die 302 through a spherical surface and is pressed through the four first adjusting bolts 304, the four first adjusting bolts 304 are also matched with the spherical die 302 through the spherical surface, the four first adjusting bolts 304 are uniformly distributed in the upper, lower, left and right directions of the spherical die 302, scales are etched on the end surface of each first adjusting bolt 304, the spherical die 302 is finely adjusted by adjusting the first adjusting bolts 304 in the four directions, the pressing degree of the first adjusting bolts 304 in the four directions can be adjusted, and the corresponding scales are read, so that the linearity of the stainless steel special pipe can be adjusted.
As shown in fig. 2, the core print positioning mechanism in this embodiment includes a core print positioning frame 600, a positioning groove is provided on the core print positioning frame 600, a positioning rod 603 is disposed in the positioning groove, one end of the positioning rod 603 passes through the core print positioning frame 600 to form a threaded connection with an adjusting nut 604, the other end of the positioning rod 603 is connected with a core print 601 through a connecting rod 602, and the position relationship of the core print 601 with respect to the drawing mold 303 is adjusted by rotating the adjusting nut 604.
Referring to fig. 1 again, the supporting mechanism 500 in this embodiment includes a bracket and a carrier roller rolling-disposed on the bracket through a bearing, and the supporting mechanism 500 is mainly used for supporting the stainless steel tube 800 and the core print 601, ensuring that the centers of the stainless steel tube 800 and the drawing die 303 are on the same plane, and during the drawing process, the carrier roller can rotate along with the movement of the stainless steel tube 800, so as to reduce the abrasion of the stainless steel tube 800 on the surface of the carrier roller.
As shown in fig. 6, the straightening mechanism 400 of the present invention comprises a mounting plate 406 fixed on a frame 700, the front end surface of the mounting plate 406 is provided with three slots, each slot is connected with two guide posts 404 along the vertical direction, the guide posts 404 are slidably sleeved with a guide block 403, the top of the guide block 403 is connected with a second adjusting bolt 401, the second adjusting bolt 401 extends upwards to the outside of the mounting plate 406, the guide column 404 is sleeved with a spring 405, the top of the spring 405 is connected with the guide block 403, the bottom of the spring 405 is connected with the bottom of the mounting plate 406, the front end surface of the guide block 403 and the front end surface of the mounting plate 406 are rotatably provided with a pressing wheel 402 which is matched with each other, when the stainless steel pipe 800 passes through the pinch rollers 402, the stainless steel pipe 800 is pinched by adjusting the distance between the upper and lower pinch rollers 402 by rotating the second adjusting bolt 401, and the bend can also be straightened.
The invention discloses a special drawing device for a stainless steel cross pipe, wherein before drawing a stainless steel pipe 800, the front end diameter of the stainless steel pipe 800 is firstly reduced to a certain size on one side of the stainless steel pipe 800 through a pipe reducing machine, then, the tube-reduced portion of the stainless steel tube 800 is passed through a drawing die 303, and the tube-reduced portion is held tightly by a pneumatic chuck 107, the stainless steel tube 800 is pressed by adjusting a screw of a straightening device, then a positioning rod 603 is placed in a positioning groove of a core print positioning frame 600, a rotating adjusting nut 604 drives the positioning rod 603 to drive a core print 601 to penetrate into the stainless steel tube 800 from the other side until a deformation area of a drawing die 303, finally a motor 101 is started, the motor 101 drives a ball screw 102 to rotate, and then the sliding base and the sliding block 104 at the bottom of the sliding base are driven to slide along the linear guide rail 103, and the pneumatic chuck 107 clamps the stainless steel pipe 800 and moves forwards to finish the drawing operation.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be able to cover the technical scope of the present invention and the equivalent alternatives or modifications according to the technical solution and the inventive concept of the present invention within the technical scope of the present invention.
Claims (7)
1. A special drawing device for a stainless steel cross tube comprises a traction mechanism (100) and an electric control box (200) which are arranged on a rack (700), and is characterized by also comprising a core print positioning mechanism, a supporting mechanism (500), a straightening mechanism (400) and a die holder assembly (300) which are sequentially arranged on the rack (700) along the drawing direction;
the core print positioning mechanism is used for positioning and adjusting the relative position of the core print (601) and the die holder assembly (300);
the supporting mechanism (500) is used for supporting the stainless steel pipe (800) and the core print (601);
the straightening mechanism (400) is used for straightening the stainless steel pipe (800) to keep concentric with the die holder assembly (300) and pressing the stainless steel pipe (800) in the drawing process;
the die holder assembly (300) is used for carrying out micro-adjustment on the straightness of the stainless steel special pipe.
2. The special drawing equipment for the stainless steel cross pipe is characterized in that the traction mechanism (100) comprises linear guide rails (103) erected on two sides of a rack (700) in the length direction, two sliding blocks (104) are connected to each linear guide rail (103) in a sliding mode, the tops of the four sliding blocks (104) are connected to a sliding seat together, a motor (101) is further fixedly mounted on the rack (700), the output end of the motor (101) is connected with a ball screw (102) through an elastic coupling, the bottom of the sliding seat is in threaded connection with the ball screw (102), and a clamping assembly for clamping a stainless steel pipe (800) is arranged on the sliding seat.
3. The special drawing device for the stainless steel cross tube as claimed in claim 2, wherein the clamping assembly comprises a support frame (105) and a pneumatic die holder (106), the support frame (105) is fixed on the sliding base, the pneumatic die holder (106) is installed on the support frame (105), a pneumatic chuck (107) is arranged inside the pneumatic die holder (106), and a spring chuck is installed inside the pneumatic chuck (107).
4. The special drawing device for the stainless steel cross tube according to claim 1, wherein the die holder assembly (300) comprises a spherical die holder (301), a spherical die (302) is arranged inside the spherical die holder (301), a drawing die (303) is arranged inside the spherical die (302), the drawing die (303) is connected with the spherical die (302) through a key (305) and is fastened by a pressing plate (306), the spherical die holder (301) is matched with the spherical die (302) through a spherical surface and is pressed tightly through four first adjusting bolts (304), the four first adjusting bolts (304) are also matched with the spherical die (302) through the spherical surface, the four first adjusting bolts (304) are uniformly distributed in the four directions of the upper direction, the lower direction, the left direction and the right direction of the spherical die (302), and scales are etched on the end surface of each first adjusting bolt (304), the straightness of the stainless steel special pipe is adjusted by adjusting the compression degree of the first adjusting bolt (304) in four directions.
5. The special drawing device for the stainless steel cross pipe, according to claim 1, is characterized in that the core print positioning mechanism comprises a core print positioning frame (600), a positioning groove is formed in the core print positioning frame (600), a positioning rod (603) is placed in the positioning groove, one end of the positioning rod (603) penetrates through the core print positioning frame (600) and is in threaded connection with an adjusting nut (604), and the other end of the positioning rod (603) is connected with the core print (601) through a connecting rod (602).
6. The special drawing equipment for stainless steel cross tubes as claimed in claim 1, wherein the supporting mechanism (500) comprises a bracket and an idler roll arranged on the bracket in a rolling manner through a bearing.
7. The special drawing device for the stainless steel cross pipe, according to claim 1, is characterized in that the straightening mechanism (400) comprises a mounting plate (406) fixed on the frame (700), the front end surface of the mounting plate (406) is provided with three grooves, each groove is connected with two guide posts (404) along the vertical direction, the guide posts (404) are sleeved with guide blocks (403) in a sliding manner, the tops of the guide blocks (403) are connected with second adjusting bolts (401), and the second adjusting bolt (401) extends upwards to the outside of the mounting plate (406), the guide column (404) is further sleeved with a spring (405), the top of the spring (405) is connected with the guide block (403), the bottom of the spring is connected with the bottom of the mounting plate (406), and the front end face of the guide block (403) and the front end face of the mounting plate (406) are respectively and rotatably provided with a pressing wheel (402) which is matched with each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110699329.1A CN113275400A (en) | 2021-06-23 | 2021-06-23 | Special drawing equipment for stainless steel cross pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110699329.1A CN113275400A (en) | 2021-06-23 | 2021-06-23 | Special drawing equipment for stainless steel cross pipe |
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|---|---|
| CN113275400A true CN113275400A (en) | 2021-08-20 |
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| CN202110699329.1A Pending CN113275400A (en) | 2021-06-23 | 2021-06-23 | Special drawing equipment for stainless steel cross pipe |
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| CN114210763A (en) * | 2021-11-09 | 2022-03-22 | 苏州东米智能设备有限公司 | Multi-section gear shifting drawing device and method for finned tube rolling mill |
| CN114273447A (en) * | 2021-11-23 | 2022-04-05 | 杰森能源技术有限公司 | Manufacturing method of metal pipe |
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| CN207386416U (en) * | 2017-09-01 | 2018-05-22 | 无锡天辰冷拉型钢有限公司 | Disk round steel drawing pre-straightening device |
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| CN112620367A (en) * | 2020-11-30 | 2021-04-09 | 宁波东鼎特种管业有限公司 | Double-row horizontal drawing machine |
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Application publication date: 20210820 |