阅读说明：本技术 大口径无缝管斜轧辊车床 (Inclined roll lathe for large-diameter seamless pipe ) 是由 张国忠 刘万荣 石淼军 邓富文 年祥祥 于 2020-12-03 设计创作，主要内容包括：本申请涉及斜轧辊加工设备的技术领域,特别涉及一种大口径无缝管斜轧辊车床,该大口径无缝管斜轧辊车床动力装置,提供旋转的驱动力；工件调整装置,包括用于定位前轴承座的前轴承座底座、以及用于定位后轴承座的后轴承座底座；连接装置,用于连接斜轧辊的的内花键联轴器和动力装置；车削加工装置,位于工件调整装置的一侧。本申请中斜轧辊工件的前轴承座可以放置在前轴承座底座上,后轴承座可以放置在后轴承座底座上,并在完成放置的时候实现定位,如此即可不需要拆卸前、后轴承座,然后再通过连接装置将内花键联轴器和动力装置连接,如此在动力装置启动时即可带动轧辊自转,再通过车削加工装置来对工件进行车削加工即可。(The application relates to the technical field of skew roller processing equipment, in particular to a large-diameter seamless tube skew roller lathe, which provides a rotary driving force; the workpiece adjusting device comprises a front bearing seat base for positioning a front bearing seat and a rear bearing seat base for positioning a rear bearing seat; the connecting device is used for connecting the internal spline coupler of the inclined roller and the power device; and the turning device is positioned on one side of the workpiece adjusting device. The front bearing seat of skew rolling roller work piece can be placed on front bearing seat base in this application, and the back bearing seat can be placed on back bearing seat base to realize the location when accomplishing to place, so can need not dismantle preceding, back bearing seat, then the rethread connecting device is connected internal spline shaft coupling and power device, so can drive the roll rotation when power device starts, the rethread lathe work device comes to carry out lathe work to the work piece can.)

1. A large-diameter seamless tube inclined roll lathe is characterized by comprising:

a power device (200) for providing a rotational driving force;

the workpiece adjusting device (500) comprises a front bearing seat base (510) used for positioning a front bearing seat (14) and a rear bearing seat base (520) used for positioning a rear bearing seat (15);

the connecting device (400) is used for connecting the internal spline coupler (12) of the inclined roller (11) and the power device (200);

and a turning device (600) located on one side of the workpiece adjusting device (500).

2. The large-diameter seamless tube skew roll lathe according to claim 1, wherein: the top of the front bearing seat base (510) is provided with a front limiting groove (511) which is arranged in a penetrating way along the thickness direction, and a front key groove (512) which is arranged along the width direction of the front bearing seat base (510) is arranged in the front limiting groove (511); the top of back bearing frame base (520) is provided with along thickness direction be the back spacing groove (521) that run through the setting, is provided with back keyway (522) that set up along back bearing frame base (520) width direction in back spacing groove (521).

3. The large-diameter seamless tube skew roll lathe according to claim 2, wherein: at least one adjusting block (513) is arranged in each of the front limiting groove (511) and the rear limiting groove (521).

4. The large-diameter seamless tube skew roll lathe according to claim 3, wherein: both front bearing seat base (510) and back bearing seat base (520) are provided with limiting assemblies (530), each limiting assembly (530) comprises a limiting driving piece (531) arranged on the front bearing seat base (510)/the back bearing seat base (520) and a limiting block (532) controlled by the limiting driving piece (531) and reciprocating in the width direction of a front limiting groove (511)/a back limiting groove (521), and each limiting block (532) is positioned in the front limiting groove (511)/the back limiting groove (521).

5. The large-diameter seamless tube skew roll lathe according to claim 2, wherein: the workpiece adjusting device (500) further comprises a distance adjusting mechanism (540) for driving the rear bearing seat base (520)/the front bearing seat base (510) to move along the thickness direction.

6. The large-diameter seamless tube skew roll lathe according to claim 5, wherein: distance sensors are arranged in the front key groove (512) and the rear key groove (522), and after the distance adjusting mechanism (540) is started, the distance sensors stop when the detection values of the two distance sensors are the same.

7. The large-diameter seamless tube skew roll lathe according to claim 1, wherein: be provided with rotatory telescoping device (300) between power device (200) and connecting device (400), rotatory telescoping device (300) includes:

the internal spline shaft (310) is in transmission connection with the power device (200), and the inside of the internal spline shaft is hollow;

the spline shaft (320) has one end circumferentially limited and circumferentially movably inserted on the internal spline shaft (310), and the other end connected with the connecting device (400);

the screw rod lifter (340) is arranged on the power device (200) and is used for driving the spline shaft (320) to move axially;

and two ends of the rotary joint (350) are respectively connected with a telescopic screw rod (342) and a spline shaft (320) on the screw rod lifter (340).

8. The large-diameter seamless tube skew roll lathe according to claim 7, wherein: one end of the spline shaft (320) inserted into the internal spline shaft (310) is connected with a hollow thin tube (321), and a rotary joint (350) is connected with one end, far away from the spline shaft (320), of the hollow thin tube (321); one end of the internal spline shaft (310) is provided with a hollow guide flange (311) which is in clearance fit with the hollow thin tube (321).

9. The large-caliber seamless tube skew roll lathe according to claim 1, 7 or 8, wherein: the connecting device (400) is a cross universal coupling.

10. The large-diameter seamless tube skew roll lathe according to claim 1, wherein: the turning device (600) comprises a turning tool (630), a feed mechanism (620) for driving the turning tool (630) to move along the width direction of the rear bearing seat base (520), and a feed mechanism (610) for driving the feed mechanism (620) to move along the thickness direction of the rear bearing seat base (520).

Technical Field

The application relates to the technical field of skew roller processing equipment, in particular to a large-diameter seamless pipe skew roller lathe.

Background

The heavy-calibre oblique rolling mill group of steel pipe industry adopts oblique roll weight to be heavier, more than 60 tons, and the roller type is the curve, and is comparatively complicated. The oblique roller is shown in fig. 1 and fig. 2, and comprises a roller, an internal spline coupler, bearing seat end covers, a front bearing seat and a rear bearing seat, wherein the two bearing seats are respectively positioned at two ends of the roller, the bearing seat end covers are arranged on the rear bearing seat, the internal spline coupler is arranged on the front bearing seat, and key grooves are respectively arranged on the front bearing seat and the rear bearing seat.

In a steel pipe rolling workshop, the off-line skew rolling roller has larger roller shape error due to abrasion, and can be used after being turned again. At present, although the large-caliber oblique roller can be machined, the machining method is mainly the traditional common horizontal lathe machining, the end cover and the inner spline coupler of the bearing seat need to be disassembled in the lathe machining, the bearing in the bearing seat can be exposed, the possibility that iron scraps splash into the bearing seat during machining is caused, great risk exists, measures for preventing rotation of two bearings need to be taken, and the clamping efficiency of the whole oblique roller workpiece is very low.

Disclosure of Invention

In order to enable a skew rolling roll workpiece to be machined without disassembling, the application provides a large-diameter seamless pipe skew rolling roll lathe.

The application provides a heavy-calibre seamless pipe skewed roll lathe adopts following technical scheme:

a large-diameter seamless pipe inclined roll lathe comprises:

a power device for providing a driving force for rotation;

the workpiece adjusting device comprises a front bearing seat base for positioning a front bearing seat and a rear bearing seat base for positioning a rear bearing seat;

the connecting device is used for connecting the internal spline coupler of the inclined roller and the power device;

and the turning device is positioned on one side of the workpiece adjusting device.

Through adopting above-mentioned technical scheme, the front bearing frame of skew rolling roller work piece can be placed on front bearing frame base, and the back bearing frame can be placed on back bearing frame base to realize the location when accomplishing to place, so can need not dismantle preceding, back bearing frame, then the rethread connecting device is connected internal spline shaft coupling and power device, so can drive the roll rotation when power device starts, rethread lathe work device comes to carry out lathe work to the work piece can.

Optionally: the top of the front bearing seat base is provided with a front limiting groove which is arranged in a penetrating way along the thickness direction, and a front key groove which is arranged along the width direction of the front bearing seat base is arranged in the front limiting groove; the top of back bearing frame base is provided with and is the back spacing groove that runs through the setting along thickness direction, is provided with the back keyway that sets up along back bearing frame base width direction in the spacing groove of back.

By adopting the technical scheme, as long as the width of the front limiting groove is consistent with that of the front bearing seat and the width of the rear limiting groove is consistent with that of the rear bearing seat, the positioning of the workpiece in the horizontal radial direction can be ensured. The setting of preceding keyway and back keyway can be through inserting the navigation key in preceding keyway and back keyway, and just also have the keyway on front axle bearing and the back bearing frame for the axial positioning of work piece can be realized to navigation key and keyway cooperation. And the vertical and radial positioning can be realized through the gravity of the workpiece.

Optionally: at least one adjusting block is arranged in each of the front limiting groove and the rear limiting groove.

By adopting the technical scheme, because the workpieces are different, the sizes of the workpieces can be distinguished, the adjusting blocks can be used for compensation when the front bearing seat/rear bearing seat is matched with the front limiting groove/rear limiting groove on the one hand, so that the front bearing seat base and the rear bearing seat base can be not required to be replaced when different workpieces are processed, and only different adjusting blocks are required to be replaced. Secondly, the adjusting block can also be clamped into the gap on the front bearing seat/the rear bearing seat, so that the limiting of the workpiece is more stable.

Optionally: the front bearing seat base and the rear bearing seat base are both provided with limiting assemblies, each limiting assembly comprises a limiting driving piece arranged on the front bearing seat base/the rear bearing seat base and a limiting block controlled by the limiting driving piece to reciprocate in the width direction of the front limiting groove/the rear limiting groove, and the limiting blocks are positioned in the front limiting groove/the rear limiting groove.

Through adopting above-mentioned technical scheme, spacing subassembly can play the effect the same with the adjusting block, but the difference is that the adjusting block need change not unidimensional adjusting block according to the work piece of difference, and spacing subassembly setting, only need through spacing driving piece control stopper spacing groove in the front/behind spacing groove on slide can.

Optionally: the workpiece adjusting device also comprises a distance adjusting mechanism for driving the rear bearing seat base/the front bearing seat base to move along the thickness direction.

By adopting the technical scheme, the distance between the rear bearing seat base and the front bearing seat base can be adjusted by the arrangement of the distance adjusting mechanism, so that when workpieces with different distances between the front bearing seat and the rear bearing seat are machined, the rear bearing seat base/the front bearing seat base do not need to be disassembled for re-installation.

Optionally: all be provided with a distance sensor in preceding keyway and the back keyway, after the interval adjustment mechanism starts, when two distance sensor's detection numerical value stop simultaneously.

Through adopting above-mentioned technical scheme, when the installation work piece, with the work piece hoist and mount directly over the work piece adjusting device earlier, and make the keyway on the bearing frame base that does not receive interval adjustment mechanism control corresponding keyway on with the work piece, at this moment, the direction that needs to adjust is observed to the rethread naked eye, then start interval adjustment mechanism control back bearing frame base/front axle seat base and remove towards the direction that needs adjust, when two distance sensor detection numerical value were unanimous at the removal in-process, can confirm to accomplish the counterpoint, accomplish the work piece after observing surely and place can.

Optionally: be provided with rotatory telescoping device between power device and connecting device, rotatory telescoping device includes:

the internal spline shaft is in transmission connection with the power device and is hollow inside;

one end of the spline shaft is circumferentially limited and is circumferentially movably inserted on the inner spline shaft, and the other end of the spline shaft is connected with the connecting device;

the screw rod lifter is arranged on the power device and used for driving the spline shaft to move axially;

and two ends of the rotary joint are respectively connected with a telescopic screw rod and a spline shaft on the screw rod lifter.

Through adopting above-mentioned technical scheme, power device drive internal spline axle rotates, and internal spline axle drives the integral key shaft and rotates, and then drives connecting device and rotate and drive the roll rotation. The screw rod lifter can control the spline shaft to move in the axial direction, so that workpieces with different lengths can be butted, and the arrangement of the rotary joint enables the telescopic screw rod on the screw rod lifter not to interfere with the spline shaft in the circumferential direction.

Optionally: one end of the spline shaft inserted into the internal spline shaft is connected with a hollow thin tube, and the rotary joint is connected to one end of the hollow thin tube far away from the spline shaft; one end of the internal spline shaft is provided with a hollow guide flange which is in clearance fit with the hollow thin tube.

By adopting the technical scheme, the circumferential limiting length of the spline shaft and the inner spline shaft is reduced, the axial sliding resistance is smaller, and the abrasion is lower.

Optionally: the connecting device is a cross universal coupling.

By adopting the technical scheme, the non-coaxial connection can be realized, the precision requirement required by installation is reduced, and the installation is easier.

Optionally: the turning device comprises a turning tool, a feed mechanism for driving the turning tool to move along the width direction of the rear bearing seat base, and a feed mechanism for driving the feed mechanism to move along the thickness direction of the rear bearing seat base.

Through adopting above-mentioned technical scheme, the feed can move along X, Y two directions on the horizontal plane to can be better carry out high accuracy processing to the roll.

Drawings

FIG. 1 is a side view of a skew-rolled workpiece;

FIG. 2 is a schematic structural view of a skew-rolled workpiece;

FIG. 3 is a schematic structural diagram according to the first embodiment;

FIG. 4 is a schematic structural diagram of a power unit, a rotary telescopic device and a connecting device in the first embodiment;

FIG. 5 is a front sectional view of the rotary telescopic device in the first embodiment;

FIG. 6 is a front cross-sectional view of a swivel joint according to one embodiment;

FIG. 7 is a schematic view showing the construction of a workpiece adjusting apparatus and a turning apparatus according to the first embodiment;

FIG. 8 is a schematic view of a left workpiece as mounted in accordance with one embodiment;

FIG. 9 is a schematic view of a right-hand workpiece in accordance with one embodiment;

FIG. 10 is a schematic view showing a part of a structure of a workpiece adjusting apparatus according to a second embodiment;

FIG. 11 is a partial schematic structural view of a workpiece adjusting apparatus according to a third embodiment;

FIG. 12 is a schematic partial structural view of a workpiece adjusting apparatus according to a fifth embodiment.

In the figure, 11, rolls; 12. an internal spline coupler; 13. a bearing block end cover; 14. a front bearing seat; 15. a rear bearing seat; 16. a keyway; 17. a notch; 100. a base; 110. a front large base; 120. a rear large base; 200. a power plant; 210. an R series reducer motor; 220. a gear reduction box; 300. rotating the telescoping device; 310. a female spline shaft; 311. a hollow guide flange; 320. a spline shaft; 321. a hollow thin tube; 330. installing a flange; 340. a screw rod lifter; 341. a telescopic driving motor; 342. a telescopic screw rod; 350. a rotary joint; 351. a left end cap; 352. a right end cap; 353. a rotating shaft; 354. a conical ball bearing; 400. a connecting device; 500. a workpiece adjusting device; 510. a front bearing block base; 511. a front limiting groove; 512. a front keyway; 513. an adjusting block; 520. a rear bearing block base; 521. a rear limiting groove; 522. a rear keyway; 530. a limiting component; 531. a limiting driving piece; 532. a limiting block; 533. a limiting control screw rod; 540. a spacing adjustment mechanism; 541. a slip drive motor; 542. a sliding screw rod; 600. a turning device; 610. a feed mechanism; 611. a feed control motor; 612. a feed slide rail; 613. a feed control screw rod; 620. a feed mechanism; 621. a feed control motor; 622. a feed slide; 623. a feed tool apron; 630. and (6) turning a tool.

Detailed Description

The present application is described in further detail below with reference to the attached drawings.

Example 1: a large-diameter seamless tube skew roll turning lathe, as shown in FIG. 3, includes a base 100, and a power unit 200, a rotary expansion device 300, a coupling device 400, a work adjusting device 500, and a turning device 600, which are mounted on the base 100.

The base 100 is fixedly provided with a front large base 110 and a rear large base 120 through bolts, and the power device 200 is fixedly provided on the front large base 110 through bolts. As shown in fig. 3 and 4, the power unit 200 includes an R-series reducer motor 210 and a reduction gear box, both the R-series reducer motor 210 and the reduction gear box are mounted on the front large base 110, and an output shaft of the R-series reducer motor 210 is connected to an input gear of the reduction gear box.

As shown in fig. 4 and 5, the rotary telescopic device 300 includes a female spline shaft 310, a spline shaft 320, a mounting flange 330, a lead screw lifter 340, and a rotary joint 350, the female spline shaft 310 is rotatably connected to the reduction gearbox through a bearing and is connected to an output gear of the reduction gearbox (the specific structure is not shown in this embodiment, and the female spline shaft 310 may also be engaged with the output gear by providing teeth on the surface).

The internal spline shaft 310 is hollow, an internal spline is arranged on the inner wall of one end of the internal spline shaft 310, the spline shaft 320 is inserted into the internal spline shaft 310, and the outer surface of the spline shaft 320 is provided with a spline matched with the spline shaft to realize circumferential positioning.

The end part of one end of the spline shaft 320 inserted into the internal spline shaft 310 is fixedly connected with a hollow thin tube 321, the inner wall of one end of the internal spline shaft 310 far away from the spline shaft 320 is provided with a hollow guide flange 311, the other end of the hollow thin tube 321 penetrates through the hollow guide flange 311 to be fixedly connected with a rotary joint 350, and the hollow thin tube 321 is in clearance fit with the hollow guide flange 311.

The mounting flange 330 is fixedly mounted on the reduction gear box, the lead screw lifter 340 is mounted on the mounting flange 330, one end of a telescopic lead screw 342 on the lead screw lifter 340 is fixedly connected to the other end of the rotary joint 350, the telescopic lead screw 342 is driven to rotate by a worm gear assembly (inside the lead screw lifter, not shown in the figure), and the worm gear assembly is driven by a telescopic driving motor 341.

Referring to fig. 6, the rotary joint 350 includes a left end cap 351, a right end cap 352 and a rotary shaft 353, the right end cap 352 is connected to the hollow tubule 321, the left end cap 351 is fixedly connected to the right end cap 352 through a bolt, the left end cap 351 is annularly disposed, one end of the rotary shaft 353 penetrates through the left end cap 351, two conical ball bearings 354 are respectively mounted on the rotary shaft 353, the two conical ball bearings 354 are respectively disposed at two sides of the left end cap 351, and the other end of the rotary shaft 353 is fixedly connected to the telescopic screw rod 342.

As shown in fig. 4, the connecting device 400 is a universal joint cross, one end of which is fixedly connected to the spline shaft 320, and the other end of which is used for connecting to the internal spline coupler 12 of the workpiece.

As shown in fig. 7, the workpiece adjusting device 500 and the turning device 600 are fixedly mounted on the rear large base 120 through bolts, the workpiece adjusting device 500 includes a front bearing seat base 510 and a rear bearing seat base 520, the front bearing seat base 510 and the rear bearing seat base 520 are both fixedly mounted on the rear large base 120 through bolts, and a plurality of hole sites for the rear bearing seat base 520 are disposed on the rear large base 120.

The top of front bearing seat base 510 is provided with along the thickness direction be the preceding spacing groove 511 that runs through the setting, is provided with the preceding keyway 512 that sets up along front bearing seat base 510 width direction in preceding spacing groove 511. Only one adjusting block 513 is disposed in the front limiting groove 511.

The top of back bearing frame base 520 is provided with along the thickness direction be the back spacing groove 521 that runs through the setting, is provided with the back keyway 522 that sets up along back bearing frame base 520 width direction in the spacing groove 521 of back. Only one adjusting block 513 is disposed in the rear limiting groove 521.

With reference to fig. 8 and 9, the skew rollers 11 are paired, so that the skew rollers have left and right parts, and the notches 17 of the two bearing seats are arranged oppositely, so that the position of the adjusting block 513 needs to be adjusted correspondingly when the skew rollers 11 are machined in the left and right directions.

As shown in fig. 7 and 8, the turning device 600 is located at one side of the workpiece adjusting device 500, and includes a feed mechanism 610, a feed mechanism 620, and a turning tool 630, where the feed mechanism 610 includes a feed control motor 611, a feed slide rail 612, and a feed control screw 613, the feed control motor 611 and the feed slide rail 612 are both mounted on the rear large base 120, and the feed slide rail 612 is disposed along the thickness direction of the front bearing base 510.

One end of the feed control screw 613 is fixedly connected to the rotating shaft of the feed control motor 611, and the other end extends in the length direction of the feed slide rail 612 and is located right above the feed slide rail 612.

The feeding mechanism 620 includes a feeding control motor 621, a feeding slide seat 622, a turning tool seat and a turning control screw rod (not shown in the figure), the feeding slide seat 622 is slidably mounted on the feeding slide rail 612 and connected to the feeding control screw rod 613, the feeding control motor 621 is fixedly mounted on the feeding slide seat 622, and the turning control screw rod is mounted on a rotating shaft of the feeding control motor 621. The feed tool post 623 is slidably mounted on the feed slide and connected with the turning control screw rod. The turning tool 630 is fixedly mounted on the turning seat.

The working principle is as follows:

the distance between rear bearing housing base 520 and front bearing housing base 510 is adjusted first, and the size and position of adjustment block 513 is adjusted. The workpiece is suspended over the workpiece adjusting device 500, keys are inserted into the front keyway 512 and the rear keyway 522, and then the workpiece is slowly lowered, so that the front bearing seat 14 and the rear bearing seat 15 are respectively placed on the front bearing seat base and the rear bearing seat base 520, and the two keys are clamped into the keyways 16 of the front bearing seat 14 and the rear bearing.

The screw rod lifter 340 is started to control the telescopic screw rod 342 to move axially, so that the spline shaft 320 and the connecting device 400 are driven to move axially until the end part of the connecting device 400 can be connected with the internal spline coupler 12, at this moment, connection is completed, and finally the turning device 600 is started to process.

Example 2: as shown in fig. 10, the difference from embodiment 1 is that a limiting component 530 is disposed on each of the front bearing seat base 510 and the rear bearing seat base 520, in this embodiment, the rear bearing seat base 520 is taken as an example, the limiting component 530 includes a limiting driving component 531 and a limiting block 532, the limiting driving component 531 is a limiting motor and is mounted on a side surface of the rear bearing seat base 520, wherein the limiting driving component 531 is respectively located on two opposite sides of the front bearing seat base 510 and the rear bearing seat base 520 to avoid a workpiece.

A limiting control screw rod 533 is installed on a rotating shaft of the limiting motor, a limiting block 532 is installed on the control screw rod and controlled by the limiting control screw rod 533 to reciprocate along the width direction of the rear limiting groove 521, and the limiting block 532 is located in the rear limiting groove 521.

Example 3: as shown in fig. 11, the difference from embodiment 1 is that the workpiece adjusting apparatus 500 further includes a spacing adjustment mechanism 540, the spacing adjustment mechanism 540 includes a sliding driving motor 541 and a sliding screw 542, and the sliding driving motor 541 may be mounted on the rear large base 120 or directly mounted on the base 100, which is located on a side of the rear bearing base 520 away from the power apparatus 200.

One end of the sliding screw 542 is connected to the rotating shaft of the sliding driving motor 541, and the other end of the sliding screw 542 penetrates through the rear bearing seat base 520, and the sliding screw 542 is matched with the rear bearing seat base 520 to drive the rear bearing seat base 520 to move in the thickness direction.

Wherein, the rear bearing seat base 520 is slidably mounted on the rear big base 120.

Embodiment 4 is different from embodiment 3 in that a distance sensor (not shown in the figure) is disposed in each of the front key slot 512 and the rear key slot 522, when a workpiece is mounted, the workpiece is lifted directly above the workpiece adjusting device 500, and the key slot 16 on the bearing seat base which is not controlled by the distance adjusting mechanism 540 corresponds to the key slot 16 on the corresponding bearing seat on the workpiece, at this time, the direction to be adjusted is observed by naked eyes, and when the distance adjusting mechanism 540 starts to rotate forwards or rotate backwards to drive the rear bearing seat base 520 to slide, the distance sensors stop only when the detection values of the two distance sensors are the same.

Example 5: as shown in fig. 12, the difference from embodiment 2 is that the work adjusting apparatus 500 further includes a spacing adjustment mechanism 540 in embodiment 3.

The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.