CN211679304U - Rolling structure with constant pure rolling - Google Patents
Rolling structure with constant pure rolling Download PDFInfo
- Publication number
- CN211679304U CN211679304U CN202020023219.4U CN202020023219U CN211679304U CN 211679304 U CN211679304 U CN 211679304U CN 202020023219 U CN202020023219 U CN 202020023219U CN 211679304 U CN211679304 U CN 211679304U
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- Prior art keywords
- rack
- rolling
- electric telescopic
- telescopic device
- roll
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- 238000005096 rolling process Methods 0.000 title claims abstract description 48
- 230000007246 mechanism Effects 0.000 claims abstract description 13
- 238000000034 method Methods 0.000 claims abstract description 11
- 230000008569 process Effects 0.000 claims abstract description 9
- 230000000694 effects Effects 0.000 claims abstract description 5
- 230000005540 biological transmission Effects 0.000 claims description 10
- 230000001360 synchronised effect Effects 0.000 abstract description 16
- 238000004519 manufacturing process Methods 0.000 abstract description 9
- 230000008859 change Effects 0.000 abstract description 7
- 230000033001 locomotion Effects 0.000 description 4
- 238000009434 installation Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
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Abstract
The utility model discloses a rolling structure with constant pure rolling, which comprises an electric telescopic device, a rack connected with the electric telescopic device, a frame, a roller arranged on the frame and a coaxial synchronous gear, wherein the synchronous gear is matched with the rack; in actual work, the rack is pushed and pulled by the electric telescopic device, so that the synchronous gear can simulate an eccentric gear, and the compensation effect of relative sliding of the roller and the deformation cone to be processed is achieved. The utility model discloses the rolling structure of permanent pure who obtains, through servo motor push-and-pull rack, can effectively offset the relative slip that the change of roll effective diameter leads to, be the roll with wait to process the deformation awl and keep rolling contact, reduce the wearing and tearing on finished product surface and the impact in the course of working and generate heat, practice thrift manufacturing cost, improve production efficiency, adopt electronic telescoping device and rack and pinion mechanism simultaneously, can adapt to the roll of different models, the suitability is better.
Description
Technical Field
The utility model relates to a mechanical control field, especially a rolling structure of permanent pure roll.
Background
The cold pilger mill is a cold processing machine for manufacturing metal pipe fittings, and mainly rolls the pipe fittings to be thin by utilizing the ductility of metal through the rotation of a roller structure with a groove; in the prior art, because the racks are fixed, relative sliding does not occur between the reference circle of the synchronous gear and the reference line of the racks, and the radius of the reference circle of the synchronous gear which synchronously rotates is a constant; and because the processing mode is mainly realized by the rolling groove with gradually changed arc diameter, obviously, in the process, a thick pipe to be processed can form a gradually thinned deformation cone to be processed in front of the roller, and because the size of the rolling groove changes, the distance from the center of the roller to the contact surface of the deformation cone to be processed continuously changes, namely the rolling effective radius of the roller changes along with the stroke moment, the roller rotates in the same direction and at the same speed with the synchronous gear, and under the condition that the angular speed of the synchronous gear and the roller is synchronous and unchanged, the linear speed on the surface of the roller can continuously change due to the change of the effective radius of the roller, so that the contact surface of the roller and the deformation cone to be processed continuously slides relatively, thereby causing a plurality of adverse effects such as seriously influencing the quality of finished pipes, accelerating the abrasion of the roller, generating a large amount of heat, increasing impact and the like.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the defects of the prior art and providing a constant pure rolling structure which can basically eliminate relative sliding between a roller and a deformation cone to be processed.
In order to realize the above-mentioned purpose, the utility model discloses a rolling structure of permanent pure roll, it includes quick-witted case, slide rail, along the frame that the slide rail removed, rack-mounted roll axle, be used for rolling the roll and wait to process the roll of warping the awl and with the coaxial synchronizing gear of roll under reciprocating drive mechanism effect, with synchronizing gear complex rack, be equipped with wear-resisting guide rail on the quick-witted case, rack movable mounting is on wear-resisting guide rail, still be equipped with electric telescopic device on the quick-witted case, electric telescopic device and host computer connection, electric telescopic device still are connected with rack one end transmission.
For convenience of maintenance, the electric telescopic device can comprise a servo motor, a coupler and a lead screw nut mechanism which are connected in sequence, and the servo motor is in transmission connection with the rack through the coupler and the lead screw nut mechanism.
In order to facilitate manufacturing and installation, the electric telescopic device comprises a servo electric cylinder and a connecting block, and a push rod of the servo electric cylinder is in transmission connection with the rack through the connecting block.
The utility model discloses the rolling structure of permanent pure who obtains, through electric telescopic device push-and-pull rack, can effectively offset the relative slip that the change of roll effective diameter leads to, be the roll with wait to process and warp the awl and keep rolling contact, reduce the wearing and tearing on finished product surface and the impact in the course of working and generate heat, practice thrift manufacturing cost, improve production efficiency, adopt electric telescopic device and rack and pinion mechanism simultaneously, can adapt to the roll of different models, the suitability is better.
Drawings
Fig. 1 is a plan view of a constant rolling mill structure of embodiment 1 of the present invention;
FIG. 2 is a cross-sectional view of the step A-A of FIG. 1;
FIG. 3 is an enlarged schematic view at B in FIG. 2;
fig. 4 is a structural view of an electric telescopic device in embodiment 2 of a constant rolling structure according to the present invention.
In the figure: the machine comprises a machine case 1, a slide rail 2, a machine frame 3, a roll shaft 4, a roll 5, a synchronous gear 6, a rack 7, an electric telescopic device 8, a wear-resistant guide rail 9, a to-be-processed deformation cone 10, an upper computer 11, a servo motor 81, a coupler 82, a lead screw nut mechanism 83, a servo electric cylinder 84 and a connecting block 85.
Detailed Description
The present invention will be further explained with reference to the drawings and examples.
Example 1:
the rolling structure with constant pure rolling described in this embodiment is, as shown in fig. 1, fig. 2, and fig. 3, and includes a machine case 1, a slide rail 2, a machine frame 3 moving along the slide rail 2 under the action of a reciprocating driving mechanism, a rolling roll shaft 4 installed on the machine frame 3, a rolling roll 5 for rolling a deformation cone 10 to be processed, a synchronizing gear 6 coaxial with the rolling roll 5, and a rack 7 matched with the synchronizing gear 6, wherein the machine case 1 is provided with a wear-resistant guide rail 9, the rack 7 is movably installed on the wear-resistant guide rail 9, the machine case 1 is further provided with an electric telescopic device 8, the electric telescopic device 8 is connected with an upper computer 11, and the electric telescopic device 8 is further in transmission connection with one end of the rack 7.
For convenience of maintenance, as shown in fig. 2, the electric telescopic device 8 may include a servo motor 81, a coupler 82, and a lead screw and nut mechanism 83 connected in sequence, and the servo motor 81 is in transmission connection with the rack 7 through the coupler 82 and the lead screw and nut mechanism 83.
A constant-purity rolling structure as described above, the method of use comprising the steps of:
a. before the roller 5 is installed, obtaining an effective radius characteristic function R (f (x)) of the effective radius R of the contact surface of the roller 5 and the deformation cone 10 to be processed, which is changed along with the rolling distance x of the roller 5, through dimension measurement and data fitting;
b. mounting the roller 5 on the rack 3, adjusting the synchronous gear 6 to be meshed with the rack 7, enabling the reference circle of the synchronous gear 6 to be tangent to the reference line of the rack 7, enabling the diameter Rm of the reference circle of the synchronous gear 6 to be known data when the synchronous gear 6 is selected, and calculating the rolling radius variation quantity delta h generated in the rolling process of the roller 5 through a formula delta h-R-Rm;
c. dividing the rolling stroke D of the roller 5 into small segments with equal length, wherein the length of each small segment is dx, calculating the movement compensation amount dy of the rack 7 required by compensating the change of the effective radius R of the roller 5 in each small segment, and the calculation formula is as follows: dy ═ Δ h · dx/R ═ R-Rm · dx/R;
d. inputting the motion compensation dy of the rack 7 obtained in the step c into an upper computer 11 of the electric telescopic device 8;
f. in the process that the roller 5 reciprocates along with the rack 3, the upper computer 11 drives the rack 7 to stretch and retract through the electric stretching device 8 according to the input movement compensation quantity of the rack 7, so that the speed difference and the relative sliding between the roller 5 and the deformation cone 10 to be processed, which are caused by the change of the effective radius R, are compensated, and the deformation cone 10 to be processed and the roller 5 always keep pure relative rolling.
In the step c, for convenience of calculation, the angle of the circumference of the roll 5 may be used as a basis for dividing the rolling stroke D into equal-length segments, and in a general technique, the rolling stroke D is pi D, where D is the diameter of the outer circumference of the roll 5, and can be measured before the roll 5 is installed.
In the actual working process, taking the effective radius R of the roller 5 as a reduction and the frame 3 driving the roller 5 to move rightward as an example, in a short stroke of Δ x, the angular velocity of the synchronous gear 6 is regarded as constant, at this time, as the effective radius R is reduced, the linear velocity of the contact surface between the roller 5 and the deformation cone 10 to be processed is reduced, so that the moving velocity of the frame 3 is equal to the linear velocity of the synchronous gear 6 but not equal to the linear velocity of the surface of the rolling groove in the roller 5, and the roller 5 and the deformation cone 10 to be processed slide relatively, at this time, the servo motor 81 under the control of the upper computer 11 pushes the rack 7 leftward according to the movement compensation dy of the rack 7 calculated in the foregoing steps a to f, so that the synchronous gear 6 functions like an eccentric gear to compensate the relative sliding.
The rolling structure of permanent pure rolling that this embodiment provided, through servo motor 81 push-and-pull rack 7, can effectively offset the relative slip that 5 effective diameters of roll change lead to, it is that roll 5 keeps rolling contact with waiting to process deformation awl 10, reduce the wearing and tearing on finished product surface and the impact and generate heat in the course of working, practice thrift manufacturing cost, improve production efficiency, adopt electronic telescoping device 8 and rack and pinion 7 mechanism simultaneously, can adapt to the roll 5 of different models, the suitability is better.
Example 2:
the rolling structure with constant pure rolling described in this embodiment, as shown in fig. 4, is different from that described in embodiment 1 in that, for convenience of manufacturing and installation, the electric telescopic device 8 includes a servo electric cylinder 84 and a connecting block 85, and a push rod of the servo electric cylinder 84 is in transmission connection with the rack 7 through the connecting block 85.
The rolling structure of permanent pure rolling that this embodiment provided adopts servo electronic jar 84, has reduced the driving medium among the drive process, and transmission precision is higher, control effect is better.
Claims (3)
1. The utility model provides a rolling structure of permanent pure rolling, it includes quick-witted case (1), slide rail (2), under reciprocating drive mechanism effect along slide rail (2) frame (3) removal, install roll axle (4) on frame (3), be used for rolling and wait to process roll (5) of deformation awl (10) and with roll (5) coaxial synchronizing gear (6), with synchronizing gear (6) complex rack (7), characterized by be equipped with wear-resisting guide rail (9) on quick-witted case (1), rack (7) movable mounting is on wear-resisting guide rail (9), still be equipped with electric telescopic device (8) on quick-witted case (1), electric telescopic device (8) are connected with host computer (11), and electric telescopic device (8) still are connected with rack (7) one end transmission.
2. The rolling structure with constant pure rolling according to claim 1, wherein the electric telescopic device (8) comprises a servo motor (81), a coupler (82) and a lead screw nut (83) mechanism which are connected in sequence, and the servo motor (81) is in transmission connection with the rack (7) through the coupler (82) and the lead screw nut (83) mechanism.
3. Rolling structure with constant pure rolling according to claim 1, characterised in that said electric telescopic means (8) comprise an electric servo cylinder (84) and a connecting block (85), the push rod of said electric servo cylinder (84) being in transmission connection with the rack (7) through the connecting block (85).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020023219.4U CN211679304U (en) | 2020-01-07 | 2020-01-07 | Rolling structure with constant pure rolling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020023219.4U CN211679304U (en) | 2020-01-07 | 2020-01-07 | Rolling structure with constant pure rolling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211679304U true CN211679304U (en) | 2020-10-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020023219.4U Expired - Fee Related CN211679304U (en) | 2020-01-07 | 2020-01-07 | Rolling structure with constant pure rolling |
Country Status (1)
| Country | Link |
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| CN (1) | CN211679304U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111195653A (en) * | 2020-01-07 | 2020-05-26 | 宁波凯力精密机械有限公司 | Rolling structure and method for constant pure rolling |
-
2020
- 2020-01-07 CN CN202020023219.4U patent/CN211679304U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111195653A (en) * | 2020-01-07 | 2020-05-26 | 宁波凯力精密机械有限公司 | Rolling structure and method for constant pure rolling |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20201016 |
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| CF01 | Termination of patent right due to non-payment of annual fee |