CN110961959A - Split type sizing mill square frame closing device - Google Patents
Split type sizing mill square frame closing device Download PDFInfo
- Publication number
- CN110961959A CN110961959A CN201911307579.5A CN201911307579A CN110961959A CN 110961959 A CN110961959 A CN 110961959A CN 201911307579 A CN201911307579 A CN 201911307579A CN 110961959 A CN110961959 A CN 110961959A
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- CN
- China
- Prior art keywords
- hydraulic cylinder
- square frame
- sizing mill
- split type
- frame
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
- B23Q3/02—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for mounting on a work-table, tool-slide, or analogous part
- B23Q3/06—Work-clamping means
- B23Q3/08—Work-clamping means other than mechanically-actuated
- B23Q3/082—Work-clamping means other than mechanically-actuated hydraulically actuated
Abstract
The invention relates to the technical field of metal pipe processing machinery, which comprises a hydraulic cylinder base, wherein the left side and the upper side of the hydraulic cylinder base are fixedly connected on a host machine assembly through bolts, a hydraulic cylinder is fixed on the hydraulic cylinder base through bolts, a stop block is welded behind the hydraulic cylinder, the top of the hydraulic cylinder is arranged on a cylinder rod of the hydraulic cylinder, an anti-rotation screw is arranged on the top of the hydraulic cylinder, and a pressure plate is fixed on a square frame. The invention mainly solves the problems that the size and the inclined plane of the sizing unit frame are increased by the pressing device designed in the way that the pressing device of the square frame is connected with the frame, and the processing and the transportation of the frame are all caused by disadvantages, so that the frame is easier to process and transport, the pressing is more reliable by the anti-rotation design of the top, and the invention has extremely high popularization value.
Description
Technical Field
The invention relates to the technical field of metal pipe processing machinery, in particular to a split type sizing mill square frame pressing device which limits displacement of a sizing mill square frame during pipe forming processing so as to guarantee processing precision of pipes.
Background
In the process of processing a steel pipe by a sizing mill, the pressing of a square frame of the sizing mill is of great importance, and in the process of processing the steel pipe by the sizing mill with a poor pressing device, the square frame vibrates or displaces, so that the processed steel pipe has the phenomena of uneven wall thickness, poor straightness, poor surface quality and the like. The invention of application No. 200910215572.0 is characterized in that the square frame pressing device is connected with the frame, and the pressing device is designed in such a way that the size and the inclined surface of the frame of the sizing unit are increased, thereby causing adverse effects on the processing and the transportation of the frame.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides a split type sizing mill square frame pressing device.
The technical scheme adopted by the invention is as follows:
a pressing device for a square frame of a split sizing mill comprises a hydraulic cylinder seat; the device comprises a hydraulic cylinder base bolt, a stop block, a hydraulic cylinder bolt, a hydraulic cylinder top, an anti-rotation screw, a pressing plate, a main machine assembly, a square frame and a roll changing device. The pressing device of the square frame of the split sizing mill is positioned above the opening side of the main frame in the assembly of the main machine, and the pressing device and the assembly of the main machine are designed in a split mode so as to be convenient to transport and process. The split sizing mill square frame pressing device comprises a hydraulic cylinder base, wherein the left side and the upper side of the hydraulic cylinder base are connected and fixed on a main machine assembly through a hydraulic cylinder base bolt and used for bearing an upward oblique force transmitted by a hydraulic cylinder. The hydraulic cylinder is fixed on the hydraulic cylinder seat through a hydraulic cylinder bolt, the stop block is welded behind the hydraulic cylinder and used for bearing the force of the hydraulic cylinder and preventing the hydraulic cylinder and the hydraulic cylinder seat from generating relative displacement, the top head of the hydraulic cylinder is installed on a hydraulic cylinder rod, the anti-rotation screw is installed on the top head of the hydraulic cylinder and screwed down, the connecting thread of the top head of the hydraulic cylinder deforms from the end surface to the seam, the anti-rotation effect is achieved, and the pressing plate is fixed on the square frame. In addition, as shown in fig. 1 that the setting of the pressing hydraulic cylinder is oblique, compared with the frame of the sizing and reducing mill of utility model application No. 201320345914.2, the pressing cylinder which is obliquely arranged can make the pressing plate of the square frame retract inside the square frame completely, so that the structure of the square frame is more compact, and the processing and the transportation are easier.
The hydraulic cylinder retracts when the square frame needs to be replaced, the roll changing device pulls the square frame away, after the square frame is replaced, the roll changing device pushes the square frame back to the original position, a cylinder rod of the hydraulic cylinder extends out, and the ejector head compresses the pressing plate.
The left side and the upper side of the hydraulic cylinder seat are in bolted connection with the main frame, the left side bolt bears horizontal force in a tensioned mode, and the upper side bolt bears vertical force to form resultant force to bear force transmitted by the hydraulic cylinder.
The check block is welded behind the hydraulic cylinder according to the stress direction of the hydraulic cylinder, so that the hydraulic cylinder bolt is prevented from being sheared due to overlarge shearing force, and the hydraulic cylinder generates displacement to cause the square frame to be loosened.
A5 mm seam is formed at a position 20mm close to the connecting end face of the hydraulic cylinder top head, the seam is guaranteed to be penetrated through by half of connecting threads with a hydraulic cylinder rod, holes are formed in the end face, unthreaded holes are formed from the end face to the seam, the aperture of each unthreaded hole is larger than that of an anti-rotation screw, a threaded hole is formed below the seam, the hole depth is larger than the length of the anti-rotation screw, the anti-rotation screw is screwed in, and the threads connected with the hydraulic cylinder rod deform from the end face to the seam so as to achieve the purpose of preventing rotation.
Compared with the prior art, the split mounting method has the advantages that the size and the inclined plane of the main frame are reduced, the processing and the transportation are more convenient, the anti-rotation device for the top of the hydraulic cylinder is added, and the hydraulic cylinder is more reliably compressed.
Drawings
FIG. 1 is a schematic view of the overall structure of a sizing mill according to the present invention;
FIG. 2 is a schematic view of a split type sizing mill square frame pressing device of the present invention;
FIG. 3 is a schematic diagram of the position of a split type sizing mill square frame pressing device on the main machine assembly according to the invention;
fig. 4 is a schematic structural diagram of a top head of the pressing device of the split sizing mill square frame.
In the figure: 1. a hydraulic cylinder base; 2. a hydraulic cylinder block bolt; 3. a stopper; 4. a hydraulic cylinder; 5. a hydraulic cylinder bolt; 6. a hydraulic cylinder top; 7. an anti-rotation screw; 8. pressing a plate; 9. assembling a host; 10. a square frame; 11. a roll changing device.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
As shown in figure 2, the left side and the upper side of a hydraulic cylinder seat 1 are connected and fixed on a main machine assembly 9 through hydraulic cylinder seat bolts 2, the left side and the upper side of the hydraulic cylinder seat 1 are attached to the main machine assembly 9 on two sides, and resultant force formed by two stress surfaces bears force transmitted by a hydraulic cylinder 4. The hydraulic cylinder 4 is fixed on the hydraulic cylinder base 1 through a hydraulic cylinder bolt 5. The stop block 3 is welded behind the hydraulic cylinder 4 according to the stress direction of the hydraulic cylinder 4, so that the hydraulic cylinder bolt 5 is prevented from being sheared due to overlarge shearing force, and the square frame 10 is prevented from being loosened due to displacement of the hydraulic cylinder 4. The hydraulic cylinder top 6 is arranged on a cylinder rod of the hydraulic cylinder 4, the anti-rotation screw 7 is arranged on the hydraulic cylinder top, the anti-rotation screw 7 is screwed down, the connecting thread of the hydraulic cylinder top 6 deforms from the end surface to the seam, the anti-rotation effect is achieved, and the pressing plate is fixed on the square frame.
The working process of the device is as follows:
the hydraulic cylinder 4 retracts when the square frame 10 needs to be replaced, the roll changing device 11 pulls the square frame 10 away, after the square frame 11 is replaced, the roll changing device 11 pushes the square frame 10 back to the original position, a cylinder rod of the hydraulic cylinder 4 extends out, and a hydraulic cylinder top 6 compresses the pressing plate.
The left side and the upper side of the hydraulic cylinder seat 1 are in bolt connection with the main frame, the left side bolt bears horizontal force in a tension mode, and the upper side bolt bears vertical force to form resultant force so as to bear force transmitted by the hydraulic cylinder.
The stop block 3 is welded behind the hydraulic cylinder 4 according to the stress direction of the hydraulic cylinder 4, so that the hydraulic cylinder bolt 5 is prevented from being sheared due to overlarge shearing force, and the square frame 10 is prevented from being loosened due to displacement of the hydraulic cylinder 4.
The hydraulic cylinder top 6 is provided with a 5mm seam at a position 20mm close to the connecting end surface, the seam is ensured to be penetrated by half of connecting threads with the hydraulic cylinder rod, the end surface is provided with a hole, the end surface is provided with a unthreaded hole to the seam, the aperture of the unthreaded hole is larger than that of an anti-rotation screw, a threaded hole is formed below the seam, the hole depth is larger than the length of the anti-rotation screw, the anti-rotation screw is screwed in, and the part of the threads connected with the hydraulic cylinder rod from the end surface to the seam deforms so as to achieve the aim of preventing.
Compared with the prior art, the split mounting method has the advantages that the size and the inclined plane of the main frame are reduced, the processing and the transportation are more convenient, the anti-rotation design of the hydraulic cylinder top is added, and the hydraulic cylinder is more reliably compressed.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (4)
1. The utility model provides a split type sizing mill side frame closing device, the sizing mill include host computer assembly (9), square frame (10), roll change device (11), a split type sizing mill side frame closing device is arranged in the top of host computer opening side in the host computer assembly, its characterized in that: split type sizing mill side frame closing device includes: the hydraulic cylinder comprises a hydraulic cylinder base (1), a hydraulic cylinder base bolt (2), a stop block (3), a hydraulic cylinder (4), a hydraulic cylinder bolt (5), a hydraulic cylinder top head (6), an anti-rotation screw (7) and a pressing plate (8); the left side and the upper side of a hydraulic cylinder seat are fixedly connected with a host machine through bolts, the hydraulic cylinder is fixedly arranged on the hydraulic cylinder seat through bolts, a stop block is welded behind the hydraulic cylinder, the top of the hydraulic cylinder is arranged on a cylinder rod of the hydraulic cylinder, an anti-rotation screw is arranged on the top of the hydraulic cylinder, and a pressing plate is fixed on a square frame.
2. The split type sizing mill square frame pressing device according to claim 1, wherein the hydraulic cylinder base is matched with the main frame in a manner that the left side and the upper side are in bolt connection, the left side bolt bears horizontal force in a tension mode, and the upper side bolt bears vertical force.
3. The split sizing mill square frame pressing device according to claim 1, wherein the stop block is welded behind the hydraulic cylinder according to the force bearing direction of the hydraulic cylinder.
4. The split type sizing mill square frame pressing device according to claim 1, wherein the hydraulic cylinder top head is provided with a 5mm slit 20mm close to the connecting end face, the slit is ensured to be penetrated by half of connecting threads with the hydraulic cylinder rod, the end face is provided with a hole, an unthreaded hole is formed from the end face to the slit, the diameter of the unthreaded hole is larger than that of a rotation-proof screw thread, a threaded hole is formed below the slit, the hole depth is larger than the length of the rotation-proof screw, the rotation-proof screw is screwed in, and the thread connected with the hydraulic cylinder top head deforms at the part from the end face to the slit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911307579.5A CN110961959B (en) | 2019-12-18 | 2019-12-18 | Split type sizing mill square frame closing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911307579.5A CN110961959B (en) | 2019-12-18 | 2019-12-18 | Split type sizing mill square frame closing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110961959A true CN110961959A (en) | 2020-04-07 |
| CN110961959B CN110961959B (en) | 2022-01-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911307579.5A Active CN110961959B (en) | 2019-12-18 | 2019-12-18 | Split type sizing mill square frame closing device |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2839687A1 (en) * | 1978-09-08 | 1980-03-13 | Mannesmann Ag | Roll stand for stretch reducing mill - where row of inclined work cylinders is used to reinforce inexpensive stand with low overall height |
| JPS57171508A (en) * | 1981-04-16 | 1982-10-22 | Ishikawajima Harima Heavy Ind Co Ltd | Roll replacing device of pipe mill |
| CN200948466Y (en) * | 2006-09-21 | 2007-09-19 | 太原市通泽成套设备有限公司 | Roller frame of the constant reducing mill which has three rollers |
| CN201120399Y (en) * | 2007-09-28 | 2008-09-24 | 太原市通泽成套设备有限公司 | Square frame loosening mechanism |
| CN102553932A (en) * | 2011-12-31 | 2012-07-11 | 太原重工股份有限公司 | Two-roll tandem pipe mill and roll framework locking device thereof |
| CN207288366U (en) * | 2017-06-30 | 2018-05-01 | 天津市中重科技工程有限公司 | A kind of novel rolling mill rack locking device |
-
2019
- 2019-12-18 CN CN201911307579.5A patent/CN110961959B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2839687A1 (en) * | 1978-09-08 | 1980-03-13 | Mannesmann Ag | Roll stand for stretch reducing mill - where row of inclined work cylinders is used to reinforce inexpensive stand with low overall height |
| JPS57171508A (en) * | 1981-04-16 | 1982-10-22 | Ishikawajima Harima Heavy Ind Co Ltd | Roll replacing device of pipe mill |
| CN200948466Y (en) * | 2006-09-21 | 2007-09-19 | 太原市通泽成套设备有限公司 | Roller frame of the constant reducing mill which has three rollers |
| CN201120399Y (en) * | 2007-09-28 | 2008-09-24 | 太原市通泽成套设备有限公司 | Square frame loosening mechanism |
| CN102553932A (en) * | 2011-12-31 | 2012-07-11 | 太原重工股份有限公司 | Two-roll tandem pipe mill and roll framework locking device thereof |
| CN207288366U (en) * | 2017-06-30 | 2018-05-01 | 天津市中重科技工程有限公司 | A kind of novel rolling mill rack locking device |
Non-Patent Citations (1)
| Title |
|---|
| 赵孝凤: "φ508钢管热处理线定径机设计", 《冶金设备》 * |
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| CN110961959B (en) | 2022-01-07 |
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