CN88211512U

CN88211512U - Cold drawing and finish rolling tube mill

Info

Publication number: CN88211512U
Application number: CN 88211512
Authority: CN
Inventors: 韩湘明; 陈志荣
Original assignee: Individual
Current assignee: Individual
Priority date: 1988-03-14
Filing date: 1988-03-14
Publication date: 1988-12-28

Abstract

The utility model relates to a drawing tube mill, which is a cold drawing and finish rolling tube mill, comprising an assembling roller tool, a tube blank bracket arranged at the left and the right sides and a plier tool. The combining roller tool has a hollow rotary disc shaft, and three mill rolls are arranged on the end disc at intervals. When the rotary disc shaft driven by a motor rotates, and a round rolling hole namly a drawing and rolling port is formed between the formset surface of roller seam. The roller driven by the tube blank autorotates in the process of the rolling and drawing. The utility model has the advantages that the structure is reasonable, operation is convenient and reliable, the cold drawing and finish rolling tube mill is used to alter the wall and the diameter of the object, a movable-typed roller is replaced by a forced-drawing-type of original tungsten steel mold, a great amount of tungsten steel is omitted, the noise is reduced, the production capacity improves 3-5 times, and the quality of the producing tube blank is controlled easily.

Description

Cold drawing and finish rolling tube mill

The utility model is a kind of unpowered biography roll bench, and the roll tube of more specifically saying so base spurs by tractive force, forces the roll rotation, thereby makes pipe change the cold drawn smart pipe mill of original diameter dimension.

Common so far bench, its critical piece are the moulds that places on the support, made by the wolfram steel material, pipe by mould by the tonger clamping, pipe distortion under the powerful dragline of hoist engine and reach required size.But the shortcoming of this bench is a lot, because pipe need pull out by wolfram steel mould brute force and draw, so the proportion of goods damageds of wolfram steel mould are very high, the pipe of processing different size simultaneously needs the mould of corresponding size, brings the loaded down with trivial details of operation; On the other hand, because of the wearing and tearing of wolfram steel, the processing dimension of pipe is wayward, the quality instability, and this be that the bench noise of tonger power is very big with the hoist engine, reach 110 decibels; Workman's manipulation strength tonger big, that be easy to slippage also brings suitable danger.

Therefore, the purpose of this utility model is to provide a kind of novel bench, changes mold form in the past, employing is installed in the roll device on the rotation axle head, the space of several roll shop buildings forms circular pipe processing space under the rotation of axle, and pipe passes this gap and pulled out by tonger and draw and be deformed into required diameter dimension.

Design of the present utility model is following realization: a kind of bench, comprise a combination roller tool, split the support at a carriage that makes up roller tool left and right sides and trombone slide traction tonger and supporting or fixing above-mentioned three parts, wherein: described combination roller tool comprises that a motor, is positioned at the roll device in left side, a turntable shaft of fixedlying connected with roll device and centers on the deceleration device that turntable shaft is installed; Described turntable shaft is "T"-shaped hollow shaft, and left end forms an end plate, and protruding wall is arranged on the end plate; Described roll device is included in three groups of roll parts spaced apart on the end plate, and each roll parts is by spout, the slide block that can slide in the chute in spout that is fixed on the end plate; Described slide block bottom has a knurling, top that one thread groove is arranged; But one be fixed on rotatably the adjusting slider of roll in the knurling of slide block bottom, by being installed in thread groove that slide block top has and described protruding wall entad the governor motion and of distance with the pressing plate of slide block gland in spout.

Described protruding wall on the turntable shaft end periphery, have three even spaced apart and become the projecting block that extends abreast with the axle center, in order to the governor motion of roll parts to be installed.

The governor motion of described roll device comprises that a spiral is connected " ten " in the thread groove of leaving on slide block top, that have flange font screw rod, and screw rod is fixed on nut and on the described protruding wall places between described protruding wall and the nut and to be connected with screw spiral so that accurately regulate roll entad apart from the dial of (or centrifugal distance).

The magnitude range that the governor motion of roll device can be regulated pipe processing diameter is ± 3cm, needs wider change as processing dimension, then needs to change the roll of different size so that the space that forms between three rolls is rolling mouthful meets the demands.

The making material of roll can be selected 50 Si Mn, 9 Cu for use ₂Mn and 55 Cr Mn materials are because of roll in the operation of rolling is subjected to the rotation that affects of pipe, so the hardness of above-mentioned material satisfies processing request.In addition, for increasing the rolling contact-making surface of roll, prolong its life-span, the rolling surface of roll is made the arc of little indent, and radius of curvature is generally greater than 800cm.

Place the carriage in combination roller tool left side and place the cylindrical cavity of passed turntable shaft on combination roller tool right side and the tonger of clamping pipe at the rolling mouth that roll device forms all by with drive screw, drive nut cooperation, transmit small machine power by deceleration device, thereby be implemented in slippage on the guide rail of support.

Advantage of the present utility model is: adopt combination roller tool replace in the past wolfram steel mould, roll device be movable, saved that the quality of tube blank steel long, little because of roll wear more than the wolfram steel mould, that produce in service life of haling a large amount of wolfram steel of expending, roll because of the wolfram steel mould is stablized, precision is high; Combination roller tool cooperates carriage and tonger, reaches higher mechanization requirement, and output can improve 3～5 times, has also alleviated working strength of workers simultaneously, has fallen noise; Can change footpath processing, change wall processing if add with what plug can not change again then that the pipe internal diameter only changes pipe thickness, applicable surface is wider.

In order to be illustrated more clearly in bench of the present utility model, below narration is carried out in conjunction with the embodiments.In the accompanying drawing,

Fig. 1 is the bench front view of implementing according to the utility model (partial cutaway figure);

Fig. 2 is the vertical view after bench shown in Figure 1 is thrown off the deceleration device loam cake;

Fig. 3 is the end view of the combination roller tool done along 1-1 line among Fig. 2.

Referring to Fig. 1 bench according to the utility model enforcement shown in Figure 2, combination roller tool between pipe carriage 5 and duckbilled jaw type trombone slide traction tongs 19 includes roll device, the turntable shaft of fixedlying connected with roll device 18 that a motor 30, is positioned at the left side, turntable shaft is keyed jointing one gear on "T"-shaped hollow shaft, the axle, left end forms three even protruding walls 15 spaced apart and that become to extend in parallel with the axle center on deceleration device 17 that an end plate 16, installs around turntable shaft, the end plate; Under the corresponding protruding wall 15 is roll parts, see the end view of combination roller tool shown in Figure 3 for details: each roll parts comprises that one is fixed on the roll 10 in square spout 34 on the end plate 16, the knurling 35 that a square slider that can slide 12, is fixed on the slide block bottom rotatably in spout, but one by being installed in thread groove 38 that slide block 12 tops have and the protruding wall 15 on the described end plate 16 adjusting slider 12 entad the governor motion and of distance with the pressing plate 11 of slide block gland in spout 34.The spout side respectively has four screwed holes, and pressing plate 11 usefulness bolts are fixing with it, to cover slide block 12 wherein.

The governor motion of roll device comprises one " ten " font screw rod, it passes on the thread groove 38 on top that circular hole on the protruding wall, bottom spiral be connected slide block 12, and one is fixed on the dial 13 that nut 39 and on the protruding wall 15 places between described protruding wall 15 and the nut 39, is connected with screw rod 14 spirals with screw rod 14.When needing the processing dimension of conversion pipe, as long as its scope only needs loose nut 39 not outside ± 3cm, the numeral on the levelling dial 13 with regard to the required rolling tube blank size of recoverable, and does not need to dismantle pressing plate 11 because of the conversion roll.On the roll mandrel 37 of slide block 12 lower support, roll body is big to be deployed in the knurling 35 that the slide block bottom is left roll 10 by rolling bearing 36 devices.The radius of curvature of the rolling surface 40 of roll is greater than 800cm.

In order to strengthen its fastness, roll device fixture in the present embodiment: comprise the protruding wall 15 on spout 34 and the end plate periphery, all be that 18 integral casts form with turntable shaft, the spout 34 casting back processing that evenly are distributed on the end plate can meet the requirements of accuracy of alignment.For expressing roll 10 slide blocks 12 that cover within the runner block 34, spout 34 parts that its front and end plate rigidly connect among Fig. 1 are cutd open.

Deceleration device 17 is fixed on the support, and its output shaft is turntable shaft 18.The gear that motor 30 power are gone up on the pinion drive jackshaft by first (power shaft) rotates, another gear on the jackshaft again with turntable shaft on gears engaged, the rotation of drive turntable shaft, thereby drive the roll parts rotation of regulating on its end plate 16, pipe diameter greatly then speed is slow, and is little then fast.

Install the carriage 5 in combination roller tool left side as shown in Figure 2, its effect is to hold pipe to make it that whipping is not acute excessively in drawing the process of rolling, and is positioned at the rolling center of roll 10 formation to guarantee pipe.Carriage spanner 28 is used for the direction of rotating bracket, so that draw when rolling than the long tube base and can be inserted in.Carriage rotates by 27 drive drive screws, 7 drive nuts 6 that slow down with small machine 26, makes it to move on the mmi machine body guide rail 29.

Detachable or the plug cover in carriage left side is made up of flat taper pin 3, plug cover 2, mandrel holder 1, is fixed on the support by standing screw 4.It entangles plug 8, does to change wall when bench and adds man-hour, and the size of corresponding conversion core head 9 gets final product.

The tonger 19 that is positioned at the right side is the duckbilled jaw type, its long and narrow jaw can pass the cylindrical cavity of turntable shaft 18 and in form at roll rolling mouthful with the pipe clamping.Handwheel 20 can be regulated degree of tightness.Gripping tongs drives drive nuts 21, drive screw 22 by small machine 32, decelerator 33 and moves on rear body guide rail 31, pulls out the trombone slide base and makes it to reach and change the footpath or change the required diameter dimension of wall processing.

Support about in the of 24 two parts fixing by screw rod 23, combination roller tool support down is by fang bolt 25 reinforcings.

Claims

1, a kind of bench, comprise a combination roller tool, split a carriage 5 and trombone slide traction tonger 19 at combination roller tool left and right sides, and the support 24 of supporting or fixing above-mentioned three parts, it is characterized in that: described combination roller tool comprises that a motor 30, is positioned at the roll device in left side, a turntable shaft of fixedlying connected with roll device 18 and around coiling the deceleration device 17 that axle is installed; Described turntable shaft is "T"-shaped hollow shaft, and left end forms an end plate 16, and protruding wall 15 is arranged on the end plate 16; Described roll device is included in three groups of roll parts spaced apart on the end plate, and each roll parts comprises that one is fixed on spout 34, the slide block 12 that can slide on the end plate 16 in spout 34; One knurling 35 is arranged at described slide block bottom, but top have a thread groove 38, be fixed on rotatably the adjusting slider 12 of roll 10 in the knurling 35 of slide block bottom, by being installed in thread groove 38 that slide block top has and the protruding wall 15 on the described end plate entad the governor motion and of distance with the pressing plate 11 of slide block 12 glands in spout 34.

2, bench as claimed in claim 1, its be further characterized in that described protruding wall 15 on end plate 16 peripheries of turntable shaft 18, have three even spaced apart and become the protrusion piece that extends abreast, the governor motion of three groups of roll parts of corresponding installation with the axle center.

3, bench as claimed in claim 2, it is further characterized in that the governor motion of described roll device comprises one " ten " font screw rod 14, pass protruding wall 15 and be connected with thread groove 38 spirals on slide block 12 tops, one with screw rod 14 be fixed on nut 39 and on the described protruding wall 15 place be connected between described protruding wall 15 and the nut 39, with screw rod 14 spirals with accurate adjusting roll 10 entad or the dial 13 of centrifugal distance.

4, bench as claimed in claim 3, it is further characterized in that described rotation is fixed between roll 10 in the knurling 35 of slide block bottom and the roll mandrel 37 rolling bearing 36 is installed.

5, bench as claimed in claim 4, it is further characterized in that the rolling surface 40 of described roll 10 is indent arc slightly, radius of curvature is generally greater than 800cm.

6, bench as claimed in claim 5, it is further characterized in that the making material of described roll 10 can be 50 Si Mn or 9 Cu ₂Mn or 55 Cr Mn.

7, bench as claimed in claim 6, it is further characterized in that: the described tonger 19 that places combination roller tool right side cooperates motors 32 and decelerator 33 to lead at right fuselage by drive nut 21, drive screw 22 and rolls motion on 31 for long and narrow, jaw can pass the gripping tongs that the turntable shaft cavity is clamped pipe.

8, bench as claimed in claim 7, it is further characterized in that the described carriage 5 in combination roller tool left side that places cooperates motion on motor 26 and the decelerator 27 mmi machine body guide rails 29 by drive nut 6, drive screw 7.

9, bench as claimed in claim 8, it is further characterized in that the plug cover that is fixed on the support left end is detachable, comprises flat taper pin 3, plug cover 2, mandrel holder 1 and adds plug 8 and the core head 9 that is nested with man-hour wherein changing wall.