CN108723100A - A kind of milling method of multi-roll cold reducing mill and highorder accuracy schemes - Google Patents
A kind of milling method of multi-roll cold reducing mill and highorder accuracy schemes Download PDFInfo
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- 238000003801 milling Methods 0.000 title 1
- 230000007246 mechanism Effects 0.000 claims abstract description 34
- 238000005096 rolling process Methods 0.000 claims abstract description 16
- 230000033001 locomotion Effects 0.000 claims abstract description 14
- 238000000034 method Methods 0.000 claims abstract description 10
- 239000003638 chemical reducing agent Substances 0.000 claims description 33
- 230000005540 biological transmission Effects 0.000 claims description 13
- 238000004519 manufacturing process Methods 0.000 abstract description 10
- 238000005097 cold rolling Methods 0.000 abstract description 8
- 238000012545 processing Methods 0.000 abstract description 3
- 238000012423 maintenance Methods 0.000 description 5
- 238000009434 installation Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
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- 239000003814 drug Substances 0.000 description 1
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- 239000010959 steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B39/00—Arrangements for moving, supporting, or positioning work, or controlling its movement, combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B39/02—Feeding or supporting work; Braking or tensioning arrangements, e.g. threading arrangements
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B31/00—Rolling stand structures; Mounting, adjusting, or interchanging rolls, roll mountings, or stand frames
- B21B31/02—Rolling stand frames or housings; Roll mountings ; Roll chocks
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Abstract
本发明提供了一种多辊冷轧管机和高精度管材的轧制方法，包括床身、分别设于床身两端的主机座和回转送进机构、与主机座滑动连接的机架小车、安装在机架小车机架内的轧辊总成、驱动机架小车的驱动装置，所述机架小车安装在主机座内，所述主机座上安装有两条平行滑道，机架小车上安装有两块滑板，所述两条平行滑道中至少一条滑道为V形滑道，所述两块滑板与两条平行滑道匹配。本发明提供的这种多辊冷轧管机，主机座内设置了两条不同形式的滑道，一条滑道为平直形式，另一条滑道为V形，平直滑道加工简单，安装方便，V形滑道定心可靠不易磨损，提高了机架小车往复运动的精度，实现了机架小车自动定心，为生产高精度管材提供了可靠保证。
The invention provides a multi-roller cold rolling mill and a high-precision pipe rolling method, which includes a bed, a main frame and a rotary feeding mechanism respectively arranged at both ends of the bed, a frame trolley slidingly connected with the main frame, The roll assembly installed in the frame of the rack trolley and the driving device for driving the rack trolley, the rack trolley is installed in the main base, and the main base is equipped with two parallel slideways, and the rack trolley is installed There are two slides, at least one of the two parallel slides is a V-shaped slide, and the two slides match the two parallel slides. In the multi-roll cold-rolled pipe mill provided by the present invention, two slideways of different forms are arranged in the main frame, one slideway is straight, and the other slideway is V-shaped. The processing of the straight slideway is simple and easy to install Convenient, reliable V-shaped slideway centering is not easy to wear, improves the accuracy of the reciprocating movement of the rack trolley, realizes the automatic centering of the rack trolley, and provides a reliable guarantee for the production of high-precision pipes.
Description
技术领域technical field
本发明属于冶金设备技术领域，具体涉及一种多辊冷轧管机和高精度管材的轧制方法。The invention belongs to the technical field of metallurgical equipment, and in particular relates to a multi-roller cold-rolling pipe mill and a high-precision pipe rolling method.
背景技术Background technique
随着我国经济的发展，近年来在核电、热电、化工、医药卫生、食品、轴承制造业、航天航空和军事工业等领域需求大量的高精度管材，尤其是薄壁小口径管材，而这样的高精度薄壁小口径管材一般在多辊冷轧管机上生产。With the development of my country's economy, in recent years, a large number of high-precision pipes, especially thin-walled small-diameter pipes, have been demanded in the fields of nuclear power, thermoelectricity, chemical industry, medicine and health, food, bearing manufacturing, aerospace and military industries. High-precision thin-walled small-diameter pipes are generally produced on multi-roll cold-rolled pipe mills.
冷轧管机是把普通的管子轧成精密的管子，其上的送料装置把普通的管子顺着输送到机头上的轧辊内，小车被连杆带动使其在导轨上往复运动，轧棍在普通的管子的表面往复轧压成精密的管材。The cold rolling mill is to roll ordinary pipes into precise pipes. The feeding device on it conveys ordinary pipes to the rollers on the machine head. Reciprocating rolling on the surface of ordinary pipes to form precise pipes.
多辊冷轧管机的轧辊总成安装在机架小车内，机架小车安装在主机座内往复运动，主机座上安装有滑道，机架小车上安装有滑板，现有的多辊冷轧管机主机座滑道、机架小车的滑板均为平直形式，不具备自动定心功能，长时间使用后会磨损，机架小车往复运动精度大为降低，都不利于高精度管材的轧制。The roll assembly of the multi-roll cold-rolled pipe mill is installed in the frame trolley, which is installed in the main frame to reciprocate, the main frame is equipped with a slideway, and the frame trolley is equipped with a slide plate. The slideways of the main frame of the pipe rolling mill and the slide plates of the rack trolley are straight and do not have the function of self-centering. They will wear out after long-term use, and the reciprocating motion accuracy of the rack trolley will be greatly reduced, which is not conducive to the production of high-precision pipes. rolling.
此外，现有多辊冷轧管机多采用机械式回转送进，结构复杂，检修不便，不易实现自动化生产。In addition, most of the existing multi-roll cold-rolled pipe mills adopt mechanical rotary feeding, which has a complex structure, inconvenient maintenance, and is difficult to realize automatic production.
发明内容Contents of the invention
本发明的目的在于提供一种多辊冷轧管机，克服现有技术中机架小车往复运动精度低的问题。The object of the present invention is to provide a multi-roller cold rolling mill, which overcomes the problem of low reciprocating motion accuracy of the frame trolley in the prior art.
本发明的另一个目的在于提供一种高精度管材的轧制方法。Another object of the present invention is to provide a rolling method for high-precision pipes.
本发明提供的技术方案如下：The technical scheme provided by the invention is as follows:
一种多辊冷轧管机，包括床身、分别设于床身两端的主机座和回转送进机构、与主机座滑动连接的机架小车、安装在机架小车机架内的轧辊总成、驱动机架小车的驱动装置，所述机架小车安装在主机座内，所述主机座上安装有两条平行滑道，机架小车上安装有两块滑板，所述两条平行滑道中至少一条滑道为V形滑道，所述两块滑板与两条平行滑道匹配。A multi-roll cold-rolled pipe mill, comprising a bed, a main frame and a rotary feeding mechanism respectively arranged at both ends of the bed, a frame trolley slidingly connected with the main frame, and a roll assembly installed in the frame trolley frame 1. The driving device for driving the rack trolley, the rack trolley is installed in the main base, two parallel slideways are installed on the main base, two slide plates are installed on the rack trolley, and in the two parallel slideways At least one slideway is a V-shaped slideway, and the two slide plates are matched with two parallel slideways.
所述两条平行滑道中一条滑道为平直形滑道，另一条滑道为V形滑道。One of the two parallel slideways is a straight slideway, and the other slideway is a V-shaped slideway.
所述V形滑道开口朝下，V形夹角为60-90°。The opening of the V-shaped slideway faces downwards, and the V-shaped included angle is 60-90°.
所述回转送进机构为机械回转送进机构或伺服回转送进机构。The rotary feeding mechanism is a mechanical rotary feeding mechanism or a servo rotary feeding mechanism.
所述回转送进机构为伺服回转送进机构，所述伺服回转送进机构包括回转光杠、送进丝杠、两个伺服电机和两个伺服电机减速机，伺服电机与伺服电机减速机连接，所述两个伺服电机减速机并排设置，所述两个伺服电机减速机的输出轴分别连接回转光杠和送进丝杠；The rotary feed mechanism is a servo rotary feed mechanism, and the servo rotary feed mechanism includes a rotary light rod, a feed screw, two servo motors and two servo motor reducers, and the servo motor is connected to the servo motor reducer , the two servo motor reducers are arranged side by side, and the output shafts of the two servo motor reducers are respectively connected to the rotary light rod and the feed screw;
所述回转光杠、送进丝杠均设于床身内，所述床身内设有管坯卡盘，所述管坯卡盘内设有螺母，所述螺母与送进丝杠连接。Both the rotary light rod and the feeding screw are arranged in the bed, and the tube blank chuck is arranged in the bed, and the tube blank chuck is provided with a nut, and the nut is connected with the feeding screw.
所述驱动装置包括依次连接的摇杆机构、曲柄连杆装置和主传动系统，所述摇杆机构与机架小车连接，所述主传动系统包括主电机、传动皮带、减速机，所述曲柄连杆装置与减速机的输出轴连接。The driving device includes a rocker mechanism, a crank link device and a main transmission system connected in sequence, the rocker mechanism is connected with the frame trolley, the main transmission system includes a main motor, a transmission belt, a speed reducer, and the crank The connecting rod device is connected with the output shaft of the reducer.
还包括回转送进支座，所述伺服电机和伺服电机减速机均固设在回转送进支座上。It also includes a rotary feeding support, and the servo motor and the servo motor reducer are fixed on the rotary feeding support.
还包括底座，所述床身、主传动系统、主机座均固定在底座上，所述主传动系统和曲柄连杆装置均设于床身的下方。It also includes a base on which the bed, the main transmission system and the main base are all fixed, and the main transmission system and the crank connecting rod device are all arranged under the bed.
一种高精度管材的轧制方法，使用一种多辊冷轧管机，机架小车在驱动装置的驱动下沿主机座上的两条滑道往复运动，通过轧辊总成对管材进行轧制，其中，V形滑道使机架小车在运动过程中自动定心，使机架小车往复运动精度提高，实现高精度管材的轧制。A high-precision pipe rolling method, using a multi-roller cold-rolled pipe mill, the frame trolley reciprocates along the two slideways on the main frame under the drive of the driving device, and the pipe is rolled by the roll assembly , wherein, the V-shaped slideway automatically centers the frame trolley during the movement process, improves the reciprocating motion accuracy of the frame trolley, and realizes the rolling of high-precision pipes.
本发明的有益效果是：The beneficial effects of the present invention are:
本发明提供的这种多辊冷轧管机，主机座内设置了两条不同形式的滑道，一条滑道为平直形式，另一条滑道为V形，平直滑道加工简单，安装方便，V形滑道定心可靠不易磨损，提高了机架小车往复运动的精度，实现了机架小车自动定心，为生产高精度管材提供了可靠保证。In the multi-roll cold-rolled pipe mill provided by the present invention, two slideways of different forms are arranged in the main frame, one slideway is straight, and the other slideway is V-shaped. The processing of the straight slideway is simple and easy to install Convenient, reliable V-shaped slideway centering is not easy to wear, improves the accuracy of the reciprocating movement of the rack trolley, realizes the automatic centering of the rack trolley, and provides a reliable guarantee for the production of high-precision pipes.
送进丝杠、回转光杠由伺服电机-伺服电机减速机直接驱动，回转送进动作更加准确可靠，送进量无级可调，也易于检修，降低了维护成本。The feeding screw and rotary light rod are directly driven by the servo motor-servo motor reducer, the rotary feeding action is more accurate and reliable, the feeding amount is steplessly adjustable, and it is also easy to overhaul, reducing maintenance costs.
下面将结合附图做进一步详细说明。Further details will be described below in conjunction with the accompanying drawings.
附图说明Description of drawings
图1是机架小车和主机座的连接剖视图；Fig. 1 is the connection sectional view of frame trolley and main frame;
图2是多辊冷轧管机的主视图；Fig. 2 is the front view of multi-roll cold rolling mill;
图3是多辊冷轧管机的俯视图。Fig. 3 is a top view of a multi-roll cold rolling mill.
图中：1、主机座；2、平直形滑道；3、机架小车；4、V形滑道；5、伺服电机；6、伺服电机减速机；7、回转送进支座；8、回转光杠；9、送进丝杠；10、床身；11、底座；12、管坯卡盘；13、主传动系统；14、曲柄连杆装置；15、摇杆机构；16、机架。In the figure: 1. Main base; 2. Straight slideway; 3. Rack trolley; 4. V-shaped slideway; 5. Servo motor; 6. Servo motor reducer; 7. Rotary feeding support; 8 , rotary light rod; 9, feed screw; 10, bed; 11, base; 12, tube chuck; 13, main drive system; 14, crank connecting rod device; 15, rocker mechanism; shelf.
具体实施方式Detailed ways
实施例1：Example 1:
为了克服现有技术中机架小车3往复运动精度低，导致钢管轧制精度低的技术问题，本实施例提供了一种多辊冷轧管机，包括床身10、分别设于床身10两端的主机座1和回转送进机构、与主机座1滑动连接的机架小车3、安装在机架小车3机架16内的轧辊总成、驱动机架小车3的驱动装置，所述机架小车3安装在主机座1内，所述主机座1上安装有两条平行滑道，机架小车3上安装有两块滑板，所述两条平行滑道中至少一条滑道为V形滑道4，所述两块滑板与两条平行滑道匹配。In order to overcome the technical problem of the low reciprocating motion precision of the frame trolley 3 in the prior art, resulting in the low precision of steel pipe rolling, this embodiment provides a multi-roll cold rolling mill, including a bed 10, which is respectively arranged on the bed 10 The main frame 1 at both ends and the rotary feeding mechanism, the frame trolley 3 slidingly connected with the main frame 1, the roll assembly installed in the frame 16 of the frame trolley 3, and the driving device for driving the frame trolley 3, the machine The frame trolley 3 is installed in the main base 1, and the main base 1 is equipped with two parallel slideways, and the frame trolley 3 is equipped with two slide plates, and at least one slideway in the two parallel slideways is a V-shaped slideway. Road 4, the two slide plates are matched with two parallel slideways.
本实施例提供的这种多辊冷轧管机，主机座1内设置了两条不同形式的滑道，一条滑道为平直形式，另一条滑道为V形，平直滑道加工简单，安装方便，V形滑道4定心可靠不易磨损，提高了机架小车3往复运动的精度，实现了机架小车3自动定心，为生产高精度管材提供了可靠保证。In the multi-roll cold-rolled pipe mill provided in this embodiment, two slideways of different forms are arranged in the main frame 1, one slideway is straight, and the other slideway is V-shaped, and the processing of the straight slideway is simple. , easy to install, the V-shaped slideway 4 is reliable and not easy to wear, improves the accuracy of the reciprocating movement of the rack trolley 3, realizes the automatic centering of the rack trolley 3, and provides a reliable guarantee for the production of high-precision pipes.
实施例2：Example 2:
在实施例1的基础上，本实施例提供了一种多辊冷轧管机，所述两条平行滑道中一条滑道为平直形滑道2，另一条滑道为V形滑道4。On the basis of Embodiment 1, this embodiment provides a multi-roll cold-rolled pipe mill, one of the two parallel slideways is a straight slideway 2, and the other slideway is a V-shaped slideway 4 .
所述V形滑道4开口朝下，V形夹角为60-90°。The opening of the V-shaped slideway 4 faces downwards, and the V-shaped included angle is 60-90°.
如图1所示，机架小车3安装在主机1内，主机座1上安装有两条滑道，分别为平直形滑道2和V形滑道4，机架小车3上安装有与主机座1滑道配合使用的滑板，两条滑道平行安装，并与轧制中心线对称。As shown in Figure 1, the frame trolley 3 is installed in the main frame 1, and two slideways are installed on the main frame 1, are respectively straight slideway 2 and V-shaped slideway 4, and the rack trolley 3 is installed with The sliding plate used in conjunction with the main frame 1 slideway, the two slideways are installed in parallel and symmetrical to the rolling center line.
实施例3：Example 3:
在实施例1的基础上，本实施例提供了一种多辊冷轧管机，所述回转送进机构为机械回转送进机构或伺服回转送进机构。On the basis of Embodiment 1, this embodiment provides a multi-roll cold rolling mill, and the rotary feeding mechanism is a mechanical rotary feeding mechanism or a servo rotary feeding mechanism.
在本实施例中，所述回转送进机构为伺服回转送进机构，所述伺服回转送进机构包括回转光杠8、送进丝杠9、两个伺服电机5和两个伺服电机减速机6，伺服电机5与伺服电机减速机6连接，所述两个伺服电机减速机6并排设置，所述两个伺服电机减速机6的输出轴分别连接回转光杠8和送进丝杠9；In this embodiment, the rotary feed mechanism is a servo rotary feed mechanism, and the servo rotary feed mechanism includes a rotary light rod 8, a feed screw 9, two servo motors 5 and two servo motor reducers 6. The servo motor 5 is connected to the servo motor reducer 6, the two servo motor reducers 6 are arranged side by side, and the output shafts of the two servo motor reducers 6 are respectively connected to the rotary light rod 8 and the feed screw 9;
所述回转光杠8、送进丝杠9均设于床身10内，所述床身10内设有管坯卡盘12，所述管坯卡盘12内设有螺母，所述螺母与送进丝杠9连接。The rotary light rod 8 and the feed screw 9 are all arranged in the bed 10, the tube blank chuck 12 is arranged in the bed 10, the tube blank chuck 12 is provided with a nut, and the nut and Feed screw 9 is connected.
送进丝杠9、回转光杠8由伺服电机5-伺服电机减速机6直接驱动，回转送进动作更加准确可靠，送进量无级可调，也易于检修，降低了维护成本。克服了机械式回转送进机构，结构复杂，检修不便，不易实现自动化生产的缺陷。The feed screw 9 and the rotary light rod 8 are directly driven by the servo motor 5-servo motor reducer 6, the rotary feed action is more accurate and reliable, the feed amount is steplessly adjustable, and it is also easy to overhaul, reducing maintenance costs. It overcomes the defects of mechanical rotary feeding mechanism, complex structure, inconvenient maintenance and difficult realization of automatic production.
实施例4：Example 4:
在实施例3的基础上，本实施例提供了一种多辊冷轧管机，所述驱动装置包括依次连接的摇杆机构15、曲柄连杆装置14和主传动系统13，所述摇杆机构15与机架小车3连接；所述主传动系统13包括主电机、传动皮带、减速机，具体连接结构属于本领域公知技术，这里就不做说明。所述曲柄连杆装置14与减速机的输出轴连接。On the basis of Embodiment 3, this embodiment provides a multi-roll cold-rolled pipe mill, the driving device includes a rocker mechanism 15, a crank connecting rod device 14 and a main transmission system 13 connected in sequence, and the rocker The mechanism 15 is connected with the frame trolley 3; the main transmission system 13 includes a main motor, a transmission belt, and a reducer. The specific connection structure belongs to the known technology in the art, and will not be described here. The crank connecting rod device 14 is connected with the output shaft of the speed reducer.
摇杆机构15的顶端通过拉杆与机架小车3连接，机架小车3连接曲柄连杆装置14，曲柄连杆装置14通过齿轮啮合连接主动齿轮，主动齿轮的前端设有大皮带轮，大皮带轮通过传动皮带与主电机连接；主动齿轮与电机之间通过减速器连接。The top of the rocker mechanism 15 is connected with the frame trolley 3 through a pull rod, and the frame trolley 3 is connected with the crank connecting rod device 14, and the crank connecting rod device 14 is connected to the driving gear through gear meshing. The front end of the driving gear is provided with a large pulley, and the large pulley passes through The drive belt is connected with the main motor; the driving gear is connected with the motor through a reducer.
在本实施例中，还包括回转送进支座7，所述伺服电机5和伺服电机减速机6均固设在回转送进支座7上。In this embodiment, a rotary feeding support 7 is also included, and the servo motor 5 and the servo motor reducer 6 are fixed on the rotary feeding support 7 .
如图2、图3所示，床身10内设置有一根回转光杠8和一根送进丝杠9，并在床身10的尾部设置有回转送进支座7，伺服电机5与伺服电机减速机6把合后固定在回转送进支座7上，伺服电机5与伺服电机减速机6的数量都为两台，两台伺服电机减速机6的输出轴分别与回转光杠8和送进丝杠9连接，实现了伺服电机5直接驱动回转光杠8和送进丝杠9，床身10内设置一个管坯卡盘12，管坯卡盘12内设置有一个与送进丝杠9配合使用的螺母，当伺服电机5驱动送进丝杠9转动时，管坯卡盘12即可实现前进动作，从而实现轧制时往前顶送管坯的功能，送进量可根据工艺要求，实现无级可调。As shown in Fig. 2 and Fig. 3, a rotary light rod 8 and a feed screw 9 are arranged in the bed 10, and a rotary feed support 7 is arranged at the tail of the bed 10, and the servo motor 5 and the servo The motor reducer 6 is fixed on the rotary feeding support 7 after being closed, the number of the servo motor 5 and the servo motor reducer 6 is two, and the output shafts of the two servo motor reducer 6 are respectively connected with the rotary feed rod 8 and the Feed screw 9 is connected to realize servo motor 5 directly driving rotary light rod 8 and feed screw 9, a tube blank chuck 12 is arranged in bed 10, and a tube blank chuck 12 is provided with a feed wire The nut used in conjunction with the rod 9, when the servo motor 5 drives the feed screw 9 to rotate, the tube blank chuck 12 can realize the forward movement, thereby realizing the function of pushing the tube blank forward during rolling, and the feeding amount can be adjusted according to Process requirements, to achieve stepless adjustment.
还包括底座11，所述床身10、主传动系统13、主机座1均固定在底座11上（设置底座11增强了设备的整体刚度，也减少了设备安装工程量），所述主传动系统13和曲柄连杆装置14均设于床身10的下方（节省了占地面积）。Also includes a base 11, the bed 10, the main drive system 13, and the main base 1 are all fixed on the base 11 (setting the base 11 enhances the overall rigidity of the equipment, and also reduces the amount of equipment installation work), the main drive system 13 and the crank connecting rod device 14 are all located under the bed 10 (saving floor space).
为了提高生产效率，可以并排设置两个床身10，对应的机架小车3设置两个，两个机架小车3的中心与分别与两个床身10的中心重合，形成两条独立的轧制中心线，可同时进行两根管材的轧制即两条轧制生产线。同时，两个机架小车3分别由两套摇杆机构15驱动，两套摇杆机构15分别由两套曲柄连杆装置14驱动，曲柄连杆装置14由主电机-皮带传动-减速机驱动，减速机为双出轴形式，两套曲柄连杆装置14分别置于减速机的双出轴上，两套曲柄连杆装置14在减速机输出轴上的安装会有88度的相位差，通过这个相位差可以平衡一部分惯性力和力矩。In order to improve production efficiency, two bed bodies 10 can be arranged side by side, and two corresponding frame trolleys 3 are provided. The centers of the two frame trolleys 3 coincide with the centers of the two bed bodies 10 respectively, forming two independent rolling mills. It can roll two tubes at the same time, that is, two rolling production lines. At the same time, the two rack trolleys 3 are respectively driven by two sets of rocker mechanisms 15, and the two sets of rocker mechanisms 15 are respectively driven by two sets of crank connecting rod devices 14, and the crank connecting rod devices 14 are driven by the main motor-belt drive-reducer , the reducer is in the form of double output shafts, and two sets of crank connecting rod devices 14 are respectively placed on the double output shafts of the reducer, and the installation of the two sets of crank connecting rod devices 14 on the output shaft of the reducer will have a phase difference of 88 degrees. Part of the inertial force and moment can be balanced by this phase difference.
实施例5：Example 5:
本实施例提供了一种高精度管材的轧制方法，使用一种多辊冷轧管机，机架小车3在驱动装置的驱动下沿主机座1上的两条滑道往复运动，通过轧辊总成对管材进行轧制，其中，V形滑道4使机架小车3在运动过程中自动定心，使机架小车3往复运动精度提高，实现高精度管材的轧制。This embodiment provides a high-precision pipe rolling method. A multi-roll cold-rolled pipe mill is used. The frame trolley 3 reciprocates along the two slideways on the main frame 1 under the drive of the driving device, and the The assembly rolls the pipe, wherein, the V-shaped slideway 4 automatically centers the frame trolley 3 during the movement, improves the reciprocating motion accuracy of the frame trolley 3, and realizes high-precision rolling of the pipe.
综上所述，本发明提供的这种多辊冷轧管机，主机座1内设置了两条不同形式的滑道，一条滑道为平直形式，另一条滑道为V形滑道4，平直滑道加工简单，安装方便，V形滑道4定心可靠不易磨损，提高了机架小车3往复运动的精度，实现了机架小车3自动定心，为生产高精度管材提供了可靠保证。To sum up, in the multi-roll cold-rolled pipe mill provided by the present invention, two slideways of different forms are arranged in the main frame 1, one slideway is straight, and the other slideway is a V-shaped slideway 4 , the straight slideway is easy to process and easy to install. The centering of the V-shaped slideway 4 is reliable and not easy to wear, which improves the accuracy of the reciprocating movement of the rack trolley 3 and realizes the automatic centering of the rack trolley 3, providing a good foundation for the production of high-precision pipes Reliable guarantee.
送进丝杠9、回转光杠8由伺服电机5-减速机直接驱动，回转送进动作更加准确可靠，送进量无级可调，也易于检修，降低了维护成本。The feeding screw 9 and the rotary light rod 8 are directly driven by the servo motor 5-reducer, the rotary feeding action is more accurate and reliable, the feeding amount is steplessly adjustable, and it is also easy to overhaul, reducing maintenance costs.
其中，摇杆机构15、曲柄连杆装置14均为现有技术。Wherein, the rocker mechanism 15 and the crank connecting rod device 14 are all prior art.
以上例举仅仅是对本发明的举例说明，并不构成对本发明的保护范围的限制，凡是与本发明相同或相似的设计均属于本发明的保护范围之内。实施例没有详细叙述的部件和结构属本行业的公知部件和常用结构或常用手段，这里不一一叙述。The above examples are only illustrations of the present invention, and do not constitute a limitation to the protection scope of the present invention. All designs that are the same as or similar to the present invention fall within the protection scope of the present invention. Components and structures that are not described in detail in the embodiments are well-known components and common structures or common means in this industry, and are not described here one by one.
Claims (9)
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