CN109675937B - Rotary expanding roller spacing calibration tool and method - Google Patents
Rotary expanding roller spacing calibration tool and method Download PDFInfo
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- CN109675937B CN109675937B CN201811500873.3A CN201811500873A CN109675937B CN 109675937 B CN109675937 B CN 109675937B CN 201811500873 A CN201811500873 A CN 201811500873A CN 109675937 B CN109675937 B CN 109675937B
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- roller
- mounting hole
- slide block
- lifting
- slider
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B38/00—Methods or devices for measuring, detecting or monitoring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product
- B21B38/10—Methods or devices for measuring, detecting or monitoring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product for measuring roll-gap, e.g. pass indicators
Abstract
The invention discloses a rotary expanding roller spacing calibration tool and a method, wherein the tool comprises: the device comprises a die holder, an elastic piece, a sliding block mechanism and a lifting scale; the two sides of the die holder are respectively provided with a slide block mounting hole and a lifting hole. The elastic piece sets up in the slider mounting hole that corresponds, and the one end of slider mechanism is spacing in the slider mounting hole that corresponds, and the other end is located outside the slider mounting hole and offsets with the roll that corresponds, and slider mechanism includes the reducing section. The bottom in lift hole and the slider mounting hole intercommunication that corresponds, the lift scale is located the lift downthehole and the bottom of corresponding and offsets with the reducing section for go up and down under the drive of reducing section. According to the tool and the method for calibrating the roll gap of the rotary expanding roller, the slide block mechanism moves along with the roller, the lifting scale is lifted along with the action of the slide block mechanism, the actual position of the roller can be obtained by observing the reading of the lifting scale, the roll gap is calibrated, the labor consumption is reduced, and the calibration precision can be improved.
Description
Technical Field
The invention relates to the technical field of steel pipe forming, in particular to a rotary expanding roller spacing calibration tool and a rotary expanding roller spacing calibration method.
Background
On a steel pipe hot rolling line, the solid pipe blank is sequentially subjected to perforation and diameter expansion processes to form a seamless steel pipe. The diameter expansion is carried out through a rotary expanding machine, the body of the rotary expanding machine is horizontal, and two sets of disk-type rotary expanding rollers are arranged on the left and right. The adjustment of the roll spacing is realized by adjusting the motor to drive the worm wheel and the worm to drive the left and the right rolls to move. The adjustment of the distance between the rotary expanding rollers needs to be set strictly according to the process requirements, and the quality of the finished steel pipe can be directly influenced. The adjustment of the roll gap is established on the basis of accurate calibration, so that the high-precision calibration of the roll gap is particularly important.
In the prior art, when the roll spacing is calibrated, the distance between a left roll and a right roll is mainly measured manually. Due to the fact that manual measurement is large in uncertainty and poor in repetition precision, calibration precision of the rotary expanding roller distance is poor, and quality of finished pipes is affected.
Disclosure of Invention
In order to solve the technical problems in the prior art, the invention provides a calibration tool and a calibration method for a rotary expansion roll gap. The specific technical scheme is as follows:
in a first aspect, there is provided a rotary expanding roll pitch calibration tool, the tool comprising: the device comprises a die holder, an elastic piece, a sliding block mechanism and a lifting scale; two sides of the die holder are respectively provided with a slide block mounting hole and a lifting hole; the number of the elastic parts, the slide block mechanisms and the lifting scales is two, and each slide block mounting hole corresponds to one lifting hole, one elastic part, one slide block mechanism, one lifting scale and one roller; the elastic pieces are arranged in the corresponding slide block mounting holes, one end of each slide block mechanism is limited in the corresponding slide block mounting hole, the other end of each slide block mechanism is positioned outside the corresponding slide block mounting hole and is abutted against the corresponding roller, each slide block mechanism comprises a diameter-variable section, and the slide block mechanisms can slide in the slide block mounting holes under the driving of the rollers and the elastic pieces; the bottom of the lifting hole is communicated with the corresponding slider mounting hole, and the lifting scale is located in the corresponding lifting hole, the bottom of the lifting scale is abutted to the diameter-variable section, and the lifting scale is driven by the diameter-variable section to lift.
Furthermore, one end of the elastic piece is connected with the die holder, and the other end of the elastic piece is connected with the end part of the sliding block mechanism.
Further, the sliding block mechanism also comprises a first section and a second section which are connected to two ends of the reducing section; the first section is positioned in the sliding block mounting hole and is matched with the inner diameter of the sliding block mounting hole; the second section is located outside the slider mounting hole and is abutted to the roller.
Further, the end surface of the second section is matched with the end surface of the roller.
Further, the reducing section is a tapered structure from inside to outside along the axial direction of the slider mounting hole.
Further, the elastic part is a spring, and the outer diameter of the spring is matched with the inner diameter of the sliding block mounting hole.
In a second aspect, a method for calibrating a distance between rotary-expanding rollers is provided, the method comprising:
fixing a die holder on the rotary expanding machine body, wherein the two sliding block mechanisms are respectively opposite to the two rollers;
the roller is adjusted, the roller acts to drive the sliding block mechanism to slide, and the lifting scale is driven by the reducing section of the sliding block mechanism to lift;
and observing and recording the reading of the lifting scale, determining the actual position of the roller, and calibrating the rotary expansion roller distance through the actual position.
Further, the die holder is fixed on the rotary expanding machine body through a locking oil cylinder.
Further, the roller acts under the instruction of an upper computer, and after the actual position of the roller is determined, the actual position is input into the upper computer to serve as an adjusting reference.
The technical scheme of the invention has the following main advantages:
according to the tool and the method for calibrating the roll gap by the rotary expansion, the slide block mechanism moves along with the roll, the lifting scale is lifted along with the action of the slide block mechanism, the actual position of the roll can be obtained by observing the reading of the lifting scale, and the roll gap is calibrated. And the roller stress in the rolling process is simulated through the elasticity of the elastic piece, so that the calibration error caused by factors such as the gap of a lead screw and the like is eliminated. Compared with manual measurement in the prior art, the method reduces labor consumption and can improve calibration precision.
Drawings
The accompanying drawings, which are included to provide a further understanding of embodiments 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 invention and not to limit the invention. In the drawings:
FIG. 1 is a front view of a rotary expander roll gap calibration tool installed on a rotary expander body according to an embodiment of the present invention;
FIG. 2 is a schematic view of a portion of a structure of a roll gap calibration tool for a rotary expander according to an embodiment of the present invention;
FIG. 3 is a schematic view of a part of a structure of a calibration tool for a roll gap of a rotary expander according to another embodiment of the present invention;
FIG. 4 is a top view of a rotary expanding roll pitch marking tool in contact with a roll according to one embodiment of the present invention.
Description of reference numerals:
1-die holder, 2-elastic piece, 3-slide block mechanism, 31-diameter-changing section, 32-first section, 33-second section, 4-lifting scale, 5-slide block mounting hole, 6-lifting hole and X-roller.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the specific embodiments of the present invention and the accompanying drawings. It is to be understood that the described embodiments are merely a few embodiments of the invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.
The technical scheme provided by the embodiment of the invention is described in detail below with reference to the accompanying drawings.
In a first aspect, an embodiment of the present invention provides a calibration tool for a roll gap of a rotary expanding mill, as shown in fig. 1 to 4, the tool including: the device comprises a die holder 1, an elastic part 2, a slider mechanism 3 and a lifting scale 4. Two sides of the die holder 1 are respectively provided with a slide block mounting hole 5 and a lifting hole 6. The number of the elastic part 2, the slider mechanisms 3 and the lifting scales 4 is two, and each slider mounting hole 5 corresponds to one lifting hole 6, one elastic part 2, one slider mechanism 3, one lifting scale 4 and one roller X. The elastic piece 2 is arranged in the corresponding slide block mounting hole 5, one end of the slide block mechanism 3 is limited in the corresponding slide block mounting hole 5, the other end of the slide block mechanism 3 is positioned outside the slide block mounting hole 5 and is abutted against the corresponding roller X, the slide block mechanism 3 comprises a diameter-variable section 31, and the slide block mechanism 3 can slide in the slide block mounting hole 5 under the driving of the roller X and the elastic piece 2; the bottom end of the lifting hole 6 is communicated with the corresponding slider mounting hole 5, and the lifting scale 4 is positioned in the corresponding lifting hole 6, and the bottom end of the lifting scale abuts against the diameter-changing section 31 and is driven by the diameter-changing section 31 to lift.
The working principle of the rotary expanding roller distance calibration tool provided by the embodiment of the invention is explained as follows:
when the roller expanding device is applied, the die holder 1 is fixed on the rotary expanding machine body, and the two sliding block mechanisms 3 are respectively opposite to the two rollers X. One end of the slider mechanism 3 is connected with the elastic member 2, and the other end is connected with the roller X and moves under the thrust of the roller X and the elastic force of the elastic member 2. When the roller X moves inwards, the sliding block mechanism 3 moves inwards under the pushing of the roller X. When the roller X moves outwards, the sliding block mechanism 3 moves outwards under the action of the elastic force of the elastic piece 2, and the sliding of the sliding block mechanism 3 is consistent with the movement of the roller X. The bottom of the lifting scale 4 offsets with the reducing section 31 of the sliding block mechanism 3, when the sliding block mechanism 3 slides, the lifting scale 4 is driven by the reducing section 31 to lift, so that the lifting scale 4 is in proportional relation with the movement of the roller X, and the position of the roller X in the current state can be determined by observing the reading of the scale. And when the calibration operation is carried out, adjusting the roller X to a preset position according to a preset instruction. When the roller X acts, the sliding block mechanism 3 is driven to slide, and the lifting ruler 4 is driven to lift by the reducing section 31 of the sliding block mechanism 3; and observing and recording the reading of the lifting scale 4, determining the actual position of the roller X, wherein the actual position is the position actually corresponding to the preset instruction, and establishing the corresponding relation between the preset instruction and the actual position to finish calibration, so that the accuracy of the roller X during adjustment is higher. In the embodiment of the invention, the slider mechanism 3 is propped against the roller X through the elastic force of the elastic piece 2, the pressure borne by the roller X in the rolling process is simulated through the elastic force of the elastic piece 2, so that the movement of the roller X in the calibration process is consistent with that in the production process, and the calibration error caused by the gap of the lead screw is eliminated.
Therefore, according to the tool for calibrating the roll gap of the rotary expanding roller, provided by the embodiment of the invention, the slider mechanism 3 moves along with the roller X, so that the lifting scale 4 is lifted along with the movement of the slider mechanism 3, and the actual position of the roller X can be obtained by observing the reading of the lifting scale 4, so that the roll gap is calibrated. And the roller X is stressed in the rolling process through the elasticity of the elastic part 2, so that the calibration error caused by factors such as the gap of a lead screw is eliminated. Compared with manual measurement in the prior art, the method reduces labor consumption and can improve calibration precision.
In the embodiment of the present invention, the elastic member 2 is used for providing an elastic force to drive the slider mechanism 3 to move outwards when the roller X moves outwards. As an example, the elastic member 2 may be directly placed in the slider mounting hole 5, i.e., may perform a driving function. As another example, one end of the elastic member 2 is connected to the die holder 1, and the other end is connected to an end of the slider mechanism 3. So set up, carry on spacingly to slider mechanism 3, avoid slider mechanism 3 slippage from in the slider mounting hole 5.
Alternatively, the elastic member 2 may be a spring having an outer diameter adapted to the inner diameter of the slider mounting hole 5. So set up, avoid the incline of elastic component 2 to rock, improve stability in use.
The slider mechanism 3 is configured to slide along with the movement of the roll X, and convert the movement of the roll X into the lifting movement of the lifting scale 4 through the diameter-variable section 31. The slider mechanism 3 may include only the reducing section 31, and one end of the reducing section 31 is in contact with the elastic member 2. The other end is in contact with a roller X. Alternatively, as shown in fig. 2, the slider mechanism 3 further includes a first section 32 and a second section 33 connected to both ends of the reducer section 31; the first section 32 is positioned in the slider mounting hole 5 and is matched with the inner diameter of the slider mounting hole 5; the second segment 33 is located outside the slider mounting hole 5 and abuts against the roll X. So set up, make the motion of slider mechanism 3 in slider mounting hole 5 more gentle, avoid taking place to rock the phenomenon. Alternatively, as shown in fig. 3, the slider mechanism 3 may have a diameter-variable section 31 and a second section 33 located outside the slider mounting hole 5, and an end surface of the second section 33 is in contact with the roll X. Wherein, fig. 2 and fig. 3 are respectively a left half schematic diagram of the rotary expanding roller pitch calibration tool.
Furthermore, the end surface of the second section 33 is matched with the end surface of the roller X, so that the slider mechanism 3 is in good contact with the roller X and is more easily driven by the roller X to slide.
As shown in fig. 2 and 3, the diameter-variable section 31 may be a tapered structure from inside to outside along the axial direction of the slider mounting hole 5, so that when the rollers X approach each other to reduce the roller distance, the corresponding descending of the lifting scale 4 is achieved.
In the practical application process, a proper scale can be arranged on the lifting scale 4, so that the reading of the lifting scale 4 is equal to the actual distance from the current roller X to the rolling center line.
As shown in fig. 1, the lifting hole 6 may be a vertical hole, which facilitates the lifting of the lifting scale 4 driven by gravity and the slider mechanism 3. The slider mounting hole 5 is horizontally arranged, so that the lifting of the lifting scale 4 is driven when the slider mechanism 3 slides.
In a second aspect, an embodiment of the present invention provides a method for calibrating a distance between rotary-expanding rollers, where the method includes:
the die holder 1 is fixed on the rotary expanding machine body, and the two slide block mechanisms 3 are respectively opposite to the two rollers X.
The roller X is adjusted, the roller X acts to drive the sliding block mechanism 3 to slide, and the lifting scale 4 is driven by the reducing section 31 of the sliding block mechanism 3 to lift.
And observing and recording the reading of the lifting scale 4, determining the actual position of the roller X, and calibrating the rotary expansion roller distance according to the actual position.
According to the method for calibrating the roll gap of the rotary expansion roller, provided by the embodiment of the invention, the sliding block mechanism 3 moves along with the roller X, so that the lifting scale 4 is lifted along with the action of the sliding block mechanism 3, and the actual position of the roller X can be obtained by observing the reading of the lifting scale 4, so that the roll gap is calibrated. Compared with manual measurement in the prior art, the method reduces labor consumption and can improve calibration precision.
Wherein, the die holder 1 can be fixed on the rotary expander body through the locking oil cylinder. The locking oil cylinder and the installation key groove are matched to enable the die holder 1 to be stably fixed on the rotary expanding machine body for a long time, and the fixing position is accurate and the fixing effect is good.
Optionally, the roller X acts under the instruction of the upper computer, and after the actual position of the roller X is determined, the actual position is input to the upper computer as an adjustment reference. When the adjusting device is used, when the roller X needs to be adjusted to a certain preset position, the preset position corresponds to a preset instruction in the upper computer, and the upper computer outputs the preset instruction to enable the roller X to act. After the roller X acts, the actual position of the roller X can be determined through the reading of the lifting scale 4, the actual position is the actual position corresponding to the preset instruction, the corresponding relation between the actual position and the preset instruction is input into an upper computer to be used as a subsequent adjusting reference, and then the calibration operation of adjusting the roller distance can be completed, and the calibration is completed.
Wherein, the host computer can send out the instruction and control the motor operation, and the motor drives roll X through drive mechanism such as worm gear.
It is noted that, in this document, relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. In addition, "front", "rear", "left", "right", "upper" and "lower" in this document are referred to the placement states shown in the drawings.
Finally, it should be noted that: the above examples are only for illustrating the technical solutions of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (9)
1. A rotary expanding roll gage calibration tool, said tool comprising: the device comprises a die holder, an elastic piece, a sliding block mechanism and a lifting scale;
two sides of the die holder are respectively provided with a slide block mounting hole and a lifting hole;
the number of the elastic parts, the slide block mechanisms and the lifting scales is two, and each slide block mounting hole corresponds to one lifting hole, one elastic part, one slide block mechanism, one lifting scale and one roller;
the elastic pieces are arranged in the corresponding slide block mounting holes, one end of each slide block mechanism is limited in the corresponding slide block mounting hole, the other end of each slide block mechanism is positioned outside the corresponding slide block mounting hole and is abutted against the corresponding roller, each slide block mechanism comprises a diameter-variable section, and the slide block mechanisms can slide in the slide block mounting holes under the driving of the rollers and the elastic pieces;
the bottom of the lifting hole is communicated with the corresponding slider mounting hole, and the lifting scale is located in the corresponding lifting hole, the bottom of the lifting scale is abutted to the diameter-variable section, and the lifting scale is driven by the diameter-variable section to lift.
2. The rotary expanding roll pitch marking tool of claim 1, wherein one end of the elastic member is connected to the die holder and the other end is connected to an end of the slider mechanism.
3. The rotary expanding roll pitch marking tool of claim 1, wherein the slider mechanism further comprises a first section and a second section connected at both ends of the tapered section;
the first section is positioned in the sliding block mounting hole and is matched with the inner diameter of the sliding block mounting hole;
the second section is located outside the slider mounting hole and is abutted to the roller.
4. The rotary expanding roll pitch marking tool of claim 3, wherein the end surface of the second segment is adapted to the end surface of the roll.
5. The rotary expanding roll pitch marking tool of claim 1, wherein the tapered section is a tapered structure from inside to outside in an axial direction of the slider mounting hole.
6. The rotary expanding roll pitch marking tool of claim 1, wherein the resilient member is a spring having an outer diameter adapted to an inner diameter of the slider mounting hole.
7. A method for calibrating a distance between diverging rolls, using the tool for calibrating a distance between diverging rolls of any one of claims 1 to 6, the method comprising:
fixing a die holder on the rotary expanding machine body, wherein the two sliding block mechanisms are respectively opposite to the two rollers;
the roller is adjusted, the roller acts to drive the sliding block mechanism to slide, and the lifting scale is driven by the reducing section of the sliding block mechanism to lift;
and observing and recording the reading of the lifting scale, determining the actual position of the roller, and calibrating the rotary expansion roller distance through the actual position.
8. The method for calibrating the pitch of the rotary expanding roller according to claim 7, wherein the die holder is fixed on the rotary expanding machine body through a locking oil cylinder.
9. The method for calibrating a roll pitch for rotary expansion according to claim 7, wherein the roll is operated under the instruction of an upper machine, and after the actual position of the roll is determined, the actual position is inputted to the upper machine as an adjustment reference.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811500873.3A CN109675937B (en) | 2018-12-10 | 2018-12-10 | Rotary expanding roller spacing calibration tool and method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811500873.3A CN109675937B (en) | 2018-12-10 | 2018-12-10 | Rotary expanding roller spacing calibration tool and method |
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| Publication Number | Publication Date |
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| CN109675937A CN109675937A (en) | 2019-04-26 |
| CN109675937B true CN109675937B (en) | 2020-04-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811500873.3A Active CN109675937B (en) | 2018-12-10 | 2018-12-10 | Rotary expanding roller spacing calibration tool and method |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5533371A (en) * | 1991-02-01 | 1996-07-09 | Lauener Engineering, Ltd. | Measurement device for roll gap control and process for its operation |
| CN2896215Y (en) * | 2006-04-19 | 2007-05-02 | 重庆钢铁(集团)有限责任公司 | Venier for measuring |
| CN2923077Y (en) * | 2006-07-25 | 2007-07-18 | 宝山钢铁股份有限公司 | Device for measuring two side-rollers seam deviation of horizontal milling machine |
| CN200986429Y (en) * | 2006-06-09 | 2007-12-05 | 中国第一重型机械集团公司 | Instrument for measuring roll gap |
| CN201609716U (en) * | 2009-12-25 | 2010-10-20 | 鞍钢股份有限公司 | Calibrating tool for roll-gap deviation of vertical rolling mill |
| CN202903095U (en) * | 2012-11-14 | 2013-04-24 | 武汉钢铁(集团)公司 | Roller gap measuring device |
| JP2017100161A (en) * | 2015-12-02 | 2017-06-08 | 新日鐵住金株式会社 | Piercer mill shaft cor measuring system, piercer mill shaft core measuring method, and program |
-
2018
- 2018-12-10 CN CN201811500873.3A patent/CN109675937B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5533371A (en) * | 1991-02-01 | 1996-07-09 | Lauener Engineering, Ltd. | Measurement device for roll gap control and process for its operation |
| CN2896215Y (en) * | 2006-04-19 | 2007-05-02 | 重庆钢铁(集团)有限责任公司 | Venier for measuring |
| CN200986429Y (en) * | 2006-06-09 | 2007-12-05 | 中国第一重型机械集团公司 | Instrument for measuring roll gap |
| CN2923077Y (en) * | 2006-07-25 | 2007-07-18 | 宝山钢铁股份有限公司 | Device for measuring two side-rollers seam deviation of horizontal milling machine |
| CN201609716U (en) * | 2009-12-25 | 2010-10-20 | 鞍钢股份有限公司 | Calibrating tool for roll-gap deviation of vertical rolling mill |
| CN202903095U (en) * | 2012-11-14 | 2013-04-24 | 武汉钢铁(集团)公司 | Roller gap measuring device |
| JP2017100161A (en) * | 2015-12-02 | 2017-06-08 | 新日鐵住金株式会社 | Piercer mill shaft cor measuring system, piercer mill shaft core measuring method, and program |
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