Horizontal milling clamp for fan mill connecting beam
By designing a furnace mill beam to connect the beam, the combination of the base, support plate, pressure plate component and top seat components solves the problem of high difficulty in connecting beam processing in the existing technology, time consumption, and cost. High -precision, high efficiency processing effect.
Patent Information
- Application Number
- CN202420176258.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-24
- Publication Date
- 2025-01-28
- Estimated Expiration
- 2034-01-24
AI Technical Summary
In the prior art, the machining center or CNC milling machine is mostly used for machining beams, which is difficult to operate, time-consuming and costly to use.
The lying milling fixture of the fan grinding beam is designed. Through the combination of the base, the support plate, the pressure plate component, and the top seat component, the two planes of the front and back of the connected beam are realized, and the parallelism is guaranteed, the processing accuracy and accuracy and accuracy and accuracy of processing and the processing accuracy and accuracy of processing and processing accuracy and processing accuracy and accuracy of processing and processing accuracy and processing accuracy and accuracy and accuracy of processing and processing accuracy and accuracy and processing accuracy and processing accuracy and accuracy and accuracy of processing and processing precision efficiency.
The two planes of the front and back of the connection beam can be completed by only one pairing knife, which improves the processing accuracy and efficiency, and reduces the difficulty and cost of operation.
Smart Images
Figure CN222404452U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of horizontal milling fixtures, in particular to a horizontal milling fixture for grinding a connecting beam of a fan. Background Art
[0002] The fan coal mill used in the pulverizing system of coal-fired power generation units is the main equipment of the direct-blowing pulverizing system of lignite-fired boiler units in thermal power plants. It can simultaneously complete the grinding, drying and transportation of coal.
[0003] The fan coal mill can crush and grind raw coal to improve the combustion efficiency of coal. It is an important pulverizing equipment. The fan coal mill has the characteristics of stable operation and mature design. It is widely used in cement, power generation, mining and other industries. The connecting beam, as the core component of the fan coal mill, plays a key role in connecting the front and rear discs. Therefore, the processing accuracy of the connecting beam plays a vital role in the stability and reliability of the fan coal mill operation.
[0004] At present, machining centers or CNC milling machines are mainly used as machine tools for processing the connecting plane of connecting beams. These two machine tools are difficult to operate, time-consuming, and have high cost.
[0005] Therefore, those skilled in the art provide a horizontal milling fixture for a fan mill connecting beam to solve the problems raised in the above background technology. Utility Model Content
[0006] The utility model provides a horizontal milling fixture for a fan milling connecting beam, which can realize machining of the front and rear end two planes of a connecting beam with only one tool adjustment, and can ensure the parallelism of the two planes to a greater extent, thereby improving the machining accuracy and machining efficiency of the process, ensuring the parallelism of the machined planes, and reducing the difficulty of operation.
[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:
[0008] The utility model discloses a horizontal milling fixture for a fan mill connecting beam, comprising:
[0009] A base, wherein a first support plate and a second support plate are arranged on the top surface of the base, and the first support plate and the second support plate abut against the bottom end of the connecting beam;
[0010] A pressing plate assembly, the pressing plate assembly is installed on one side of the top surface of the base, and the pressing plate assembly can press the top end of the connecting beam;
[0011] A top seat assembly is installed on the other side of the top surface of the base, and the top seat assembly can press against the corresponding side surface of the connecting beam.
[0012] Furthermore, the height of the first support plate is higher than the height of the second support plate.
[0013] Furthermore, the top surface of the first support plate and the top surface of the second support plate are both inclined, and the top surface of the first support plate and the top surface of the second support plate are parallel.
[0014] Furthermore, the pressure plate assembly includes a pressure plate, and clamping bolts are arranged at the corners of the pressure plate. The bottom ends of the clamping bolts pass through the pressure plate and are rotatably connected to the base.
[0015] Furthermore, a nut is provided on the clamping bolt at a position above the pressure plate.
[0016] Furthermore, the top seat assembly includes a base, which is arranged close to the second support plate. At least two tightening bolts are arranged on the base, and one end of the tightening bolt passes through the base and is tightened on the corresponding side surface of the connecting beam.
[0017] Furthermore, the base includes a base plate, and a vertical plate is provided on the top surface of the base plate at one end close to the clamping bolt, and the clamping bolt passes through the vertical plate.
[0018] Furthermore, a support plate is arranged between the vertical plate and the base plate.
[0019] In the above technical solution, the utility model provides a horizontal milling fixture for a fan mill connecting beam, which has the following beneficial effects: convenient clamping, improved production efficiency, and reduced processing costs. At the same time, the horizontal milling fixture of the utility model can ensure that the same clamping plane is used when processing the left and right machined surfaces of the connecting beam. This design greatly improves the processing accuracy and improves the product quality. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.
[0021] Figure 1 A front view of a horizontal milling fixture for a fan mill connecting beam provided in an embodiment of the utility model;
[0022] Figure 2 A bottom view of a horizontal milling fixture for a fan mill connecting beam provided in an embodiment of the utility model.
[0023] Description of reference numerals:
[0024] 10. Base; 11. First support plate; 12. Second support plate;
[0025] 20. Connecting beam;
[0026] 30. Pressing plate assembly; 31. Pressing plate; 32. Pressing bolt; 33. Nut;
[0027] 40. Top seat assembly; 41. Base; 42. Jacking bolt;
[0028] 411, base plate; 412, vertical plate; 413, support plate. DETAILED DESCRIPTION
[0029] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.
[0030] See also Figure 1-2 As shown;
[0031] A horizontal milling fixture for a fan mill connecting beam according to an embodiment of the utility model comprises:
[0032] A base 10, wherein a first support plate 11 and a second support plate 12 are arranged on the top surface of the base 10, wherein the first support plate 11 and the second support plate 12 are against the bottom end of the connecting beam 20, and the height of the first support plate 11 is higher than the height of the second support plate 12. The top surfaces of the first support plate 11 and the second support plate 12 are both inclined, and the top surfaces of the first support plate 11 and the second support plate 12 are arranged in parallel; the first support plate 11 and the second support plate 12 can support the connecting beam 20, and the step formed between the first support plate 11 and the second support plate 12 can be engaged with the step on the connecting beam 20; the top surfaces of the first support plate 11 and the second support plate 12 are required to have a surface roughness less than 25, a parallelism less than 0.6, and an angle error with the horizontal plane less than ±0.5° to ensure the parallel accuracy of the front and rear surfaces to be processed of the connecting beam 20;
[0033] A pressing plate assembly 30, which is installed on one side of the top surface of the base 10 and can press the top of the connecting beam 20;
[0034] A top seat assembly 40 is installed on the other side of the top surface of the base 10 , and the top seat assembly can press against the corresponding side surface of the connecting beam 20 .
[0035] The present application applies a preload force to the connecting beam 20 in the horizontal direction through the first support plate 11 and the top seat assembly 40; the pressure plate assembly 30 applies a preload force to the connecting beam 20 in the vertical direction; and at the same time, the height of the customized assembly 40 is lower than the height of the pressure plate assembly 40 to prevent the connecting beam 20 from being displaced due to excessive horizontal preload force.
[0036] The pressing plate assembly 30 includes a pressing plate 31, and a clamping bolt 32 is disposed at each corner of the pressing plate 31. The bottom end of the clamping bolt 32 passes through the pressing plate 31 and is rotatably connected to the base 10. There are at least two pressing plates, and both are used to clamp the top surface of the connecting beam 20. A nut 33 is disposed on the clamping bolt 32 at a position above the pressing plate 31. The nut 33 is rotated to allow the pressing plate 31 to clamp the connecting beam.
[0037] The top seat assembly 40 includes a base 41, which is arranged near the second support plate 12. At least two jacking bolts 42 are arranged on the base 41. One end of the jacking bolt 42 passes through the base 41 and is jacked on the corresponding side surface of the connecting beam 20. The base 41 includes a base plate 411. A vertical plate 412 is arranged on the top surface of the base plate 411 near the end of the clamping bolt 32. The jacking bolt 42 passes through the vertical plate 412. A support plate 413 is arranged between the vertical plate 412 and the base plate 411.
[0038] During the specific operation, the base 10 is fixed on the operating table with the clamp provided by the milling machine, the connecting beam 20 is placed on the base 10, the connecting beam 20 is fitted with the first support plate 11 and the second support plate 12, the jacking bolt 42 in the top seat assembly 40 is tightened to ensure that the connecting beam 20 is fitted with the side of the first support plate 11, the pressing plate assembly 30 is assembled to the upper part of the connecting beam 20, and the clamping bolt 32 is tightened to ensure that the connecting beam 20 is tightly fitted with the first support plate 11 and the second support plate 12. After all the clamping is completed, the jacking bolt 42 and the clamping bolt 32 are tightened.
[0039] Use a milling cutter head to process the rear side processing surface of the connecting beam 20. After processing, the base 10 does not need to be moved, and the connecting beam 20 is only moved to the other side, and the above clamping process is repeated, and then another milling cutter head is used to process the front side processing surface of the connecting beam 20.
[0040] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.
Claims
1. A horizontal milling fixture for a fan milling connecting beam, characterized in that: include: A base (10), wherein a first support plate (11) and a second support plate (12) are arranged on the top surface of the base (10), and the first support plate (11) and the second support plate (12) are against the bottom end of the connecting beam (20); A pressing plate assembly (30), the pressing plate assembly being mounted on one side of the top surface of the base (10), and the pressing plate assembly being capable of pressing the top end of the connecting beam (20); A top seat assembly (40) is installed on the other side of the top surface of the base (10), and the top seat assembly can be pressed against the corresponding side surface of the connecting beam (20).
2. The horizontal milling fixture for a fan mill connecting beam according to claim 1, characterized in that: The height of the first support plate (11) is higher than the height of the second support plate (12).
3. The horizontal milling fixture for a fan mill connecting beam according to claim 2 is characterized in that: The top surface of the first support plate (11) and the top surface of the second support plate (12) are both arranged obliquely, and the top surface of the first support plate (11) and the top surface of the second support plate (12) are arranged in parallel.
4. The horizontal milling fixture for a fan mill connecting beam according to claim 1, characterized in that: The pressure plate assembly (30) comprises a pressure plate (31), and each corner of the pressure plate (31) is provided with a clamping bolt (32). The bottom end of the clamping bolt (32) passes through the pressure plate (31) and is rotatably connected to the base (10).
5. The horizontal milling fixture for a fan mill connecting beam according to claim 4, characterized in that: A nut (33) is provided on the clamping bolt (32) at a position above the pressure plate (31).
6. The horizontal milling fixture for a fan mill connecting beam according to claim 1, characterized in that: The top seat assembly (40) comprises a base (41), the base (41) is arranged close to the second support plate (12), at least two tightening bolts (42) are arranged on the base (41), one end of the tightening bolt (42) passes through the base (41) and is tightened on the corresponding side surface of the connecting beam (20).
7. The horizontal milling fixture for a fan mill connecting beam according to claim 6, characterized in that: The base (41) comprises a base plate (411), and a vertical plate (412) is provided on the top surface of the base plate (411) at one end close to the clamping bolt (32), and the clamping bolt (42) passes through the vertical plate (412).
8. The horizontal milling fixture for a fan mill connecting beam according to claim 7, characterized in that: A support plate (413) is provided between the vertical plate (412) and the base plate (411).