Special equipment for machining through hole in arc surface of large ring piece

Abstract

The utility model belongs to the technical field of flange machining equipment, and provides special equipment for machining a through hole in an arc surface of a large ring piece, which comprises a flange, an n-shaped frame detachably connected with the flange and two magnetic drills arranged on the n-shaped frame, the n-shaped frame comprises a transverse plate and vertical plates connected with the two ends of the transverse plate, the vertical plates correspond to the magnetic drills in a one-to-one mode, the magnetic drills are connected with the side walls of one sides of the vertical plates respectively, and the two magnetic drills are symmetrical to each other. According to the utility model, the two magnetic drills are adopted to process the through hole in two directions, so that the processing rigidity and precision are improved. The problems of axis deflection and errors of the through hole caused by single-direction machining are effectively solved, and the quality of the machined through hole is ensured.

Description

Technical Field

[0001] The utility model belongs to the technical field of flange processing equipment, in particular to a special equipment for processing through holes on the arc surface of a large ring. Background Art

[0002] Large rings are important pipe accessories that connect pipes, valves, pumps and other equipment, such as large flanges.

[0003] At present, there are some defects in the processing of arc surface through holes of large flanges. The staff use a marker to draw lines to determine the processing position, such as drawing a cross line or a circle to determine the processing position, and then use a magnetic drill to locate the determined processing position, or use a CNC drill for indexing processing;

[0004] However, due to the long length and small diameter of the through hole, the single-direction processing method will cause the insufficient rigidity of the drill bit due to its long length, which will make the axis of the through hole after processing easily deviate and cause large errors. If two magnetic drills are used to process the through hole in two directions, the rigidity requirement can be guaranteed, but before processing, lines need to be drawn on the inside and outside of the flange for positioning. This method cannot guarantee the consistency of position, and the axes of the through holes do not coincide after processing, which cannot meet the processing requirements of arc surface through holes of large flanges.

[0005] Therefore, it is necessary to design a special equipment for processing through holes on the arc surface of a large ring to solve the above technical problems. Summary of the invention

[0006] In order to solve the above technical problems, the utility model proposes a special device for processing through holes on the arc surface of large ring parts, which uses two magnetic drills to process through holes in both directions, thereby improving the processing rigidity and accuracy. It effectively solves the problem of through hole axis deflection and error caused by unidirectional processing, and ensures the quality of the processed through hole.

[0007] The technical solution of the utility model is:

[0008] A special device for machining through holes on the arc surface of a large ring, comprising a flange, a cam frame detachably connected to the flange, and two magnetic drills arranged on the cam frame;

[0009] The shaped frame includes a horizontal plate and vertical plates connected to both ends of the horizontal plate. The vertical plates correspond to the magnetic drills one by one. The magnetic drills are respectively connected to the side walls of one side of the vertical plate, and the two magnetic drills are symmetrical to each other. Using two magnetic drills to process the flange from opposite directions can reduce the vibration and bending of the drill bit of the magnetic drill during single-direction processing, thereby improving the processing rigidity and accuracy. The stability of the drill bit of the magnetic drill is ensured during the processing, and the problem of insufficient rigidity caused by the excessive length of the drill bit of the magnetic drill is effectively avoided, thereby improving the straightness and dimensional accuracy of the through hole after processing.

[0010] Preferably, the horizontal plate is provided with two symmetrical circular holes, which match the holes of the flange, and the horizontal plate is detachably connected to the flange through two positioning pin shaft groups. The circular holes on the horizontal plate match the holes of the flange, and a quick connection is achieved through the positioning pin shaft group, so that the yoke can be quickly and accurately aligned and fixed with the flange, which greatly reduces the adjustment and preparation time before processing and improves the processing efficiency.

[0011] Preferably, the positioning pin set includes a positioning pin and a nut threadedly connected to the top of the positioning pin, the positioning pin corresponds to the circular hole one by one, the positioning pin passes through the circular hole and the hole of the flange, and the nut fits the upper surface of the horizontal plate. The structural design of the positioning pin and the nut provides a firm connection, so that the shaped frame remains stable during the processing, reduces the processing error caused by vibration or displacement, and helps to ensure the position accuracy and dimensional accuracy of the through hole during the processing.

[0012] Preferably, the side walls of the vertical plates are each provided with a guide hole, the drill bit of the magnetic drill is facing the guide hole, and the axis of the guide hole coincides with the axis of the magnetic drill. The design of the guide hole ensures that the drill bit of the magnetic drill can be accurately aligned with the processing position. The guide hole coincides with the axis of the magnetic drill, eliminating positioning errors and ensuring the accuracy and consistency of the processed through holes. This precise positioning helps to improve the dimensional accuracy and shape consistency of the processed through holes.

[0013] Preferably, a drilling jig sleeve is provided in the guide hole. The drilling jig sleeve can ensure that the drill bit of the magnetic drill maintains precise alignment during the processing, reducing the processing error caused by improper operation or drill bit swing. The presence of the drilling jig sleeve enables the drill bit to maintain linear motion when entering and exiting the guide hole, thereby improving the dimensional accuracy and shape consistency of the processed through hole.

[0014] Preferably, the side walls of the vertical plate are provided with two threaded holes arranged at equal intervals, and the threaded holes are threadedly connected with fastening bolts, and one end of the fastening bolts is fixedly connected with a rubber pad, and the rubber pads are respectively fitted with the outer wall of the flange and the inner wall of the flange. The fastening bolts fix the yoke and the flange through the threaded holes, and the rubber pads absorb and disperse the vibration and impact generated during the processing, reducing damage to the flange surface and protecting the integrity of the flange. This design helps to extend the service life of the flange and maintain its good appearance quality.

[0015] Preferably, the guide holes are located between two equally spaced threaded holes, and the line connecting the centers of the two equally spaced threaded holes on the same vertical plate and the guide hole is a horizontal line. The guide hole is located between the two threaded holes. This layout ensures the accuracy of the processing position and the stability of the cradle during the processing, and further improves the quality of the processed through holes.

[0016] Preferably, a connecting plate is provided at the bottom of the two vertical plates, and the four corners of the connecting plate are detachably connected to the two vertical plates by fastening screws. The provision of the connecting plate and the fastening screws enhances the overall stability of the crocheted frame, and the additional support ensures that the crocheted frame will not be displaced or vibrated, thereby ensuring the accuracy and quality of the processed through holes, and helping to improve the dimensional accuracy and shape consistency of the processed through holes.

[0017] Compared with the prior art, the utility model has the following advantages and effects:

[0018] (1) Two magnetic drills are used to process through holes in both directions, which improves the processing rigidity and accuracy. This effectively solves the problem of through hole axis deflection and error caused by unidirectional processing, ensuring the quality of the processed through holes;

[0019] (2) The structural design of the cam frame and positioning pin shaft group realizes the rapid positioning and fixation of the cam frame and the flange, simplifies the preparation work before processing, and improves the processing efficiency;

[0020] (3) The design of the guide hole enables the drill bit of the magnetic drill to accurately align with the processing position, further improving the processing accuracy. The guide hole coincides with the axis of the magnetic drill, ensuring the consistency of processing;

[0021] (4) The design of threaded holes and fastening bolts on the side wall of the vertical plate enhances the connection stability between the bracket and the flange, making the equipment more stable during processing and reducing vibration and displacement;

[0022] (5) The setting of the connecting plate and fastening screws further improves the stability of the flange, making the equipment more reliable when processing large flanges and ensuring the processing quality;

[0023] (6) The drill jig sleeve can ensure that the drill bit of the magnetic drill maintains precise alignment during the processing, reducing the processing error caused by improper operation or drill bit swing. The existence of the drill jig sleeve allows the drill bit to maintain linear motion when entering and exiting the guide hole, thereby improving the dimensional accuracy and shape consistency of the processed through hole;

[0024] (7) The rubber pad has good elasticity and buffering properties. When the bolts are tightened to fix the bracket and flange, the rubber pad can absorb and disperse the vibration and impact generated during the processing, thereby reducing damage to the flange and protecting the flange surface from scratches or wear. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 The overall structure of the utility model is shown in FIG. Figure 1 ;

[0026] Figure 2 for Figure 1 A local enlarged schematic diagram;

[0027] Figure 3 The overall structure of the utility model is shown in FIG. Figure 2 ;

[0028] Figure 4 for Figure 3 B is a partial enlarged schematic diagram;

[0029] Figure 5 The overall structure of the utility model is shown in FIG. Figure 3 ;

[0030] Figure 6 for Figure 5 A partial enlarged schematic diagram of C.

[0031] Figure numerals: 1, yoke; 10, vertical plate; 100, guide hole; 2, positioning pin; 20, nut; 3, connecting plate; 5, fastening bolt; 6, fastening screw; 7, magnetic drill; 8, supporting pier; 9, flange. DETAILED DESCRIPTION

[0032] In order to enable those skilled in the art to better understand the present invention, the present invention is now further described in conjunction with specific implementation methods.

[0033] Embodiment 1:

[0034] like Figure 1 to Figure 6 As shown, the utility model provides a special device for processing through holes on the arc surface of a large ring, a special device for processing through holes on the arc surface of a large ring, comprising a flange 9, a shaped frame 1 detachably connected to the flange 9, and two magnetic drills 7 arranged on the shaped frame 1;

[0035] The shaped frame 1 includes a horizontal plate and a vertical plate 10 connected to both ends of the horizontal plate. The vertical plate 10 corresponds to the magnetic drill 7 one by one. The magnetic drill 7 is respectively connected to the side wall of one side of the vertical plate 10, and the two magnetic drills 7 are symmetrical to each other. Using two magnetic drills 7 to process the flange 9 from opposite directions can reduce the vibration and bending of the drill bit of the magnetic drill 7 during single-direction processing, thereby improving the processing rigidity and accuracy. The stability of the drill bit of the magnetic drill 7 during the processing is ensured, and the problem of insufficient rigidity caused by the excessive length of the drill bit of the magnetic drill 7 is effectively avoided, thereby improving the straightness and dimensional accuracy of the through hole after processing.

[0036] The horizontal plate is provided with two symmetrical circular holes, which match the holes of the flange 9. The horizontal plate is detachably connected to the flange 9 through two positioning pin shaft groups. The circular holes on the horizontal plate match the holes of the flange 9, and a quick connection is achieved through the positioning pin shaft group, so that the shaped frame 1 can be quickly and accurately aligned and fixed with the flange 9, which greatly reduces the adjustment and preparation time before processing and improves the processing efficiency.

[0037] The positioning pin shaft group includes a positioning pin shaft 2 and a nut 20 threadedly connected to the top of the positioning pin shaft 2. The positioning pin shaft 2 corresponds to the circular hole one by one. The positioning pin shaft 2 passes through the circular hole and the hole of the flange 9, and the nut 20 fits with the upper surface of the horizontal plate. The structural design of the positioning pin shaft 2 and the nut 20 provides a firm connection, so that the shaped frame 1 remains stable during the processing, reduces the processing error caused by vibration or displacement, and helps to ensure the position accuracy and dimensional accuracy of the through hole during the processing.

[0038] The side walls of the vertical plate 10 are all provided with guide holes 100, and the drill bits of the magnetic drill 7 are all facing the guide holes 100, and the axis of the guide holes 100 coincides with the axis of the magnetic drill 7. The design of the guide holes 100 ensures that the drill bit of the magnetic drill 7 can be accurately aligned with the processing position. The coincidence of the axes of the guide holes and the magnetic drill eliminates positioning errors and ensures the accuracy and consistency of the processed through holes. This precise positioning helps to improve the dimensional accuracy and shape consistency of the processed through holes.

[0039] A drilling jig sleeve (not shown in the figure) is arranged in the guide hole 100. The drilling jig sleeve can ensure that the drill bit of the magnetic drill 7 maintains accurate alignment during the processing, reducing the processing error caused by improper operation or drill bit swing. The existence of the drilling jig sleeve enables the drill bit to maintain linear motion when entering and exiting the guide hole, thereby improving the dimensional accuracy and shape consistency of the processed through hole.

[0040] The side walls of the vertical plate 10 are provided with two threaded holes arranged at equal intervals, and the threaded holes are threadedly connected with fastening bolts 5, and one end of the fastening bolts 5 is fixedly connected with a rubber pad, which fits the outer wall of the flange 9 and the inner wall of the flange 9 respectively. The fastening bolts 5 fix the yoke 1 and the flange 9 through the threaded holes, and the rubber pad absorbs and disperses the vibration and impact generated during the processing, reducing the damage to the surface of the flange 9 and protecting the integrity of the flange. This design helps to extend the service life of the flange and maintain its good appearance quality.

[0041] The guide holes 100 are located between two equally spaced threaded holes, and the line connecting the centers of the two equally spaced threaded holes on the same vertical plate 10 and the center of the guide hole 100 is a horizontal line. The guide hole 100 is located between the two threaded holes. This layout ensures the accuracy of the processing position and the stability of the cradle 1 during the processing, and further improves the quality of the processed through hole.

[0042] A connecting plate 3 is provided at the bottom of the two vertical plates 10, and the four corners of the connecting plate 3 are detachably connected to the two vertical plates 10 by fastening screws 6. The provision of the connecting plate 3 and the fastening screws 6 enhances the overall stability of the shaped frame 1, and the additional support ensures that the shaped frame 1 will not be displaced or vibrated, thereby ensuring the accuracy and quality of the processed through holes, and helping to improve the dimensional accuracy and shape consistency of the processed through holes.

[0043] The flange 9 is provided with a support pier 8 for supporting the flange 9. The support pier 8 plays a supporting role.

[0044] Working principle: the flange 9 is placed on the supporting pier 8, and the fixation of the flange 1 is achieved through the flange 1 and the positioning pin shaft group. The flange 1 is further fixed to the flange 9 by screwing the fastening bolts 5. The connecting plate 3 can further improve the stability of the flange 1 by screwing the fastening screws 6. After the flange 1 is fixed, one of the magnetic drills 7 is started, and the magnetic drill 7 processes the outer wall of the flange 9 through the guide hole 100 and drills to a specified depth. Then, the other magnetic drill 7 is started, and the magnetic drill 7 processes the inner wall of the flange 9 through the guide hole 100 until the drill bit of the magnetic drill 7 penetrates. After processing one through hole, the two magnetic drills 7 are placed back to their original positions, the positioning pin shaft 2 is removed, the fastening bolts 5 are removed, and the connecting plate 3 is removed. The flange 1 is fixed at another position where a through hole needs to be processed, and this process is repeated to achieve the work of processing a through hole on the flange 9.

[0045] The above are only preferred embodiments of the present invention, and are not intended to limit the patent scope of the present invention. All equivalent changes and modifications made within the scope of the present invention should still fall within the scope of the present invention.

Claims

1. A special device for machining through holes on the arc surface of large rings, characterized by: It comprises a flange (9), a cam frame (1) detachably connected to the flange (9), and two magnetic drills (7) arranged on the cam frame (1); The shaped frame (1) comprises a horizontal plate and vertical plates (10) connected to both ends of the horizontal plate, the vertical plates (10) corresponding to the magnetic drills (7) one by one, the magnetic drills (7) are respectively connected to a side wall of one side of the vertical plate (10), and the two magnetic drills (7) are symmetrical to each other.

2. The special equipment for machining through holes on the arc surface of a large ring according to claim 1, characterized in that: The transverse plate is provided with two symmetrical circular holes, which match the holes of the flange (9). The transverse plate is detachably connected to the flange (9) via two positioning pin shaft groups.

3. The special equipment for machining through holes on the arc surface of a large ring according to claim 2, characterized in that: The positioning pin shaft assembly comprises a positioning pin shaft (2) and a nut (20) threadedly connected to the top of the positioning pin shaft (2), the positioning pin shaft (2) corresponds to the circular hole one by one, the positioning pin shaft (2) passes through the circular hole and the hole of the flange (9), and the nut (20) fits with the upper surface of the horizontal plate.

4. The special equipment for machining through holes on the arc surface of a large ring according to claim 3, characterized in that: The side walls of the vertical plates (10) are each provided with a guide hole (100), the drill bit of the magnetic drill (7) is directed toward the guide hole (100), and the axis of the guide hole (100) coincides with the axis of the magnetic drill (7).

5. The special equipment for machining through holes on the arc surface of a large ring according to claim 4, characterized in that: A drilling template sleeve is arranged in the guide hole (100).

6. The special equipment for machining through holes on the arc surface of a large ring according to claim 4, characterized in that: The side walls of the vertical plate (10) are each provided with two threaded holes arranged at equal intervals, and a fastening bolt (5) is threadedly connected in each of the threaded holes. One end of each of the fastening bolts (5) is fixedly connected to a rubber pad, and the rubber pad is respectively fitted with the outer wall of the flange (9) and the inner wall of the flange (9).

7. The special equipment for machining through holes on the arc surface of a large ring according to claim 6, characterized in that: The guide holes (100) are located between two threaded holes arranged at equal intervals, and a line connecting the centers of the two threaded holes arranged at equal intervals on the same vertical plate (10) and the center of the guide hole (100) is a horizontal line.

8. The special equipment for machining through holes on the arc surface of a large ring according to claim 1, characterized in that: A connecting plate (3) is provided at the bottom of the two vertical plates (10), and the four corners of the connecting plate (3) are detachably connected to the two vertical plates (10) via fastening screws (6).

Images