CN113210745B - Flange end face machining method - Google Patents
Flange end face machining method Download PDFInfo
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- CN113210745B CN113210745B CN202110542769.6A CN202110542769A CN113210745B CN 113210745 B CN113210745 B CN 113210745B CN 202110542769 A CN202110542769 A CN 202110542769A CN 113210745 B CN113210745 B CN 113210745B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
- B23D79/00—Methods, machines, or devices not covered elsewhere, for working metal by removal of material
Abstract
The invention discloses a flange end face processing method and a processing assembly thereof, wherein the flange end face processing assembly comprises an annular positioning frame, a clamping piece, a first rotating arm, a first processing seat, a second rotating arm, a second processing seat and a central rotating shaft, a plurality of centripetal clamping pieces are uniformly arranged on the inner wall of the positioning frame, the first rotating arm and the second rotating arm are respectively sleeved on the central rotating shaft, the first rotating arm is provided with the first cutter, the second rotating arm is provided with the second cutter, the flange end face machining method and the machining assembly thereof use the two cutters to machine the flange end face, the machining efficiency is high, meanwhile, the cutting force and the torque generated by the two cutters to the flange can be mutually offset, the clamping burden of the flange is reduced, therefore, the vibration of the end face of the flange in the machining process is reduced, the size error of the end face can be reduced, and the machining precision is guaranteed.
Description
Technical Field
The invention relates to the technical field of flange machining, in particular to a flange end face machining method and a machining assembly thereof.
Background
Flanges are parts that interconnect pipes to pipes, or pipes to equipment outlets, and are widely used on pressure vessels, tanks, and pipelines. The end face of the flange is often used as a sealing face, and in the flange machining process, end face machining is a necessary process for flange machining.
The general flange end face machining process is that the flange is fixed, a cutter is used for circumferential feed cutting on the flange end face, progressive machining is carried out from the inner ring to the outer ring of the flange or from the outer ring to the inner ring, and finally machining of the whole end face of the flange is completed.
Disclosure of Invention
The invention aims to solve the problem that machining dimension errors are easy to form in the machining of a single cutter on the end face of a flange in the prior art, and provides a method and a component for machining the end face of the flange.
In order to achieve the purpose, the invention adopts the following technical scheme:
the flange end face machining method comprises the following steps:
s1: driving a first cutter with a first feed force to draw a circle from the outer edge to the inner edge of the end surface of the flange, and driving a second cutter with a second feed force to draw a circle from the inner edge to the outer edge of the end surface of the flange;
s2: in the machining process, the torque of the first cutter to the center of the end face of the flange is kept equal to the torque of the second cutter to the center of the end face of the flange, and the directions are opposite;
s3: when the first cutter and the second cutter are on the same to-be-machined ring layer of the flange end face, one cutter is withdrawn, and the other cutter completes machining of the flange end face.
The flange end face machining method has the advantages that the two cutters are used for machining the flange end face, machining efficiency is high, cutting force torques generated by the two cutters on the flange in the machining process can be mutually offset, clamping burden of the flange is reduced, accordingly, shaking of the flange end face in machining is reduced, and size errors of the flange end face can be reduced.
The invention also provides a flange end face machining assembly based on the flange end face machining method, which comprises a rack, wherein the rack is provided with an annular positioning frame, a first rotating arm, a first machining seat, a second rotating arm, a second machining seat and a central rotating shaft. Specifically, locating rack fixed connection frame, central pivot and frame swivelling joint, locating rack and the coaxial setting of central pivot, the one end of central pivot sets up driving motor.
Further, the inner wall of locating rack evenly sets up a plurality of centripetal holders, and the flange is placed inside the locating rack, and the holder can carry out the centre gripping to the side of flange, is fixed in the middle part of locating rack with the flange. The length of the clamping piece is adjustable, and the clamping piece is used for clamping flanges with different radius sizes.
Further, fixed cover of first swinging boom connects in central pivot, set up first processing seat on the first swinging boom, first processing seat and first swinging boom sliding connection set up sharp drive servo between first processing seat and the first swinging boom for first processing seat can remove along first swinging boom. The first machining seat is provided with a first cutter, and a first feeding cutting force sensor is arranged between the first machining seat and the first cutter and used for sensing the cutting force of the first cutter perpendicular to the radial line of the flange in the horizontal plane. And a first distance sensor is arranged on the first processing seat and used for detecting the distance between the first cutter and the axis of the central rotating shaft.
Furthermore, the second rotating arm is rotatably sleeved on the central rotating shaft, a second machining seat is arranged on the second rotating arm, the second machining seat is connected with the second rotating arm in a sliding mode, and a linear driving servo is arranged between the second machining seat and the second rotating arm, so that the second machining seat can move along the second rotating arm. The second machining seat is provided with a second cutter, the second rotating arm is positioned above the first rotating arm, and a jumping assembly for the second cutter to cross the first rotating arm is arranged between the second cutter and the second machining seat.
Specifically, the jumping assembly comprises a group of cross rods arranged in an up-and-down parallel mode, jumping telescopic rods arranged between the cross rods and with vertical axes and sensors arranged at two ends of the cross rods, the sensor is located on the upper portion, the upper portion of the cross rod is called after the cross rod to be fixedly connected with the second processing seat, the lower portion of the cross rod is called after the cross rod to be fixedly connected with the second cutter, the upper end of the jumping telescopic rod is fixedly connected with the upper portion of the cross rod, the lower end of the jumping telescopic rod is provided with an electromagnet, and the lower portion of the cross rod is provided with a permanent magnet and a groove corresponding to the position of the electromagnet at the lower end of the jumping telescopic rod. When the second cutter works normally, the electromagnet at the lower end of the jumping telescopic rod is electrified, the electromagnet attracts the permanent magnet, the lower end of the jumping telescopic rod is located in the groove of the lower cross rod, the lower cross rod is fixedly located below the upper cross rod, and the second cutter works normally.
The first rotating arm corresponds to the space between the cross rods. When first swinging boom process between the horizontal pole, the inductor of horizontal pole entering end senses first swinging boom process, and the steerable jump telescopic link of controller is followed horizontal pole entering end and is gone out the end to shrink in proper order and the outage of electro-magnet to the horizontal pole, and until first swinging boom leaves between the horizontal pole, first swinging boom does not take place to interfere with the jump telescopic link, accomplishes the jump of second cutter. In the process, after the first rotating arm passes through the contracted jumping telescopic rod, the jumping telescopic rod is rapidly extended to return and completes the electrification of the electromagnet, so that the relative positions of the two cross rods are not changed, and the second cutter still normally works.
Similarly, a second feeding cutting force sensor is arranged between the second machining seat and the second cutter and used for sensing the cutting force of the second cutter perpendicular to the radial line of the flange in the horizontal plane. The second feed cutting force sensor is arranged between the second machining seat and the upper cross rod. And a second distance sensor is arranged on the second processing seat and used for detecting the distance between the second cutter and the axis of the central rotating shaft.
Furthermore, a reverse speed regulating structure is arranged between the central rotating shaft and the second rotating arm, and the rotating directions of the first rotating arm and the second rotating arm of the reverse speed regulating structure are opposite. The reverse speed regulating structure comprises a speed regulating driven wheel, a speed regulating driving wheel, a transmission belt, an output bevel gear and an input bevel gear. The upper end of the first sleeve is provided with an upper bevel gear part, the upper bevel gear part is meshed with an output bevel gear, the output bevel gear is coaxially and fixedly connected with a speed regulation driven wheel through an output shaft, the lower end of the second sleeve is provided with a lower bevel gear part, the lower bevel gear part is meshed with an input bevel gear, the input bevel gear is coaxially and fixedly connected with a speed regulation driving wheel through an output shaft, and the speed regulation driven wheel is connected with the speed regulation driving wheel through a conveying belt. The output shaft and the input shaft are both rotationally connected with the frame.
Further, the speed governing action wheel includes the connecting axle, and the side of connecting axle evenly sets up the speed governing telescopic link of ring cloth, the one end fixed connection connecting axle of speed governing telescopic link, the extension end of speed governing telescopic link sets up the joint portion, and the speed governing telescopic link is extensible or shortens, and the radius of speed governing action wheel changes, realizes the rotational speed regulation, connecting axle and input shaft fixed connection, set up the zigzag recess that corresponds with the joint portion on the conveyer belt.
In the structure, the central rotating shaft drives the first sleeve to rotate, the output bevel gear rotates along with the first sleeve, the output bevel gear drives the output shaft and the speed regulation driven wheel to rotate, the speed regulation driven wheel drives the speed regulation driving wheel to rotate through the conveying belt, the speed regulation driving wheel drives the input bevel gear to rotate through the output shaft, the input bevel gear drives the second sleeve and the second rotating arm to rotate, and the second rotating arm and the first rotating arm are opposite in rotating direction.
Furthermore, the first rotating arm and the second rotating arm are respectively provided with a sliding support which is connected with the positioning frame in a sliding manner at one end far away from the central rotating shaft. The sliding support can support the first rotating arm and the second rotating arm, so that the first rotating arm and the second rotating arm can run more stably.
Further, the joint portion of speed governing action wheel includes base, slide, bracing piece and rocking plate, the upper end of base sets up the horizontally slide, the bottom and the slide sliding connection of bracing piece, the top of bracing piece and the middle part swivelling joint of rocking plate, the width of rocking plate is less than the widest width of zigzag recess in direction of transfer. In the speed governing action wheel transmission in-process, when the rocking plate contact conveyer belt of joint portion, the rocking plate can be whole or two get into the zigzag recess, get into the zigzag recess when two rocking plates, because there is contact pressure between conveyer belt and the joint portion, the rocking plate can produce the slope, the bracing piece produces the removal simultaneously, make the up slope end of rocking plate slide in the zigzag recess, carry out the outrigger to the zigzag recess, realize stable interlock between joint portion and the zigzag recess, keep the transmission of stable power. In order to better limit the rocking plate and the zigzag grooves, the spacing blocks between the zigzag grooves on the conveying belt are provided with arc surfaces, so that the rocking plate can be inclined.
The invention has the beneficial effects that:
1. the flange end face machining method and the machining assembly are characterized in that the flange end face is machined by the two cutters, machining efficiency is high, cutting forces generated by the two cutters on the flange in the machining process are opposite in direction, torque generated by the two cutters can be mutually offset, clamping burden of the flange is reduced, accordingly, shaking of the flange end face in machining is reduced, end face size errors can be reduced, and machining accuracy is guaranteed.
2. In the reverse speed regulating structure in the flange end face machining assembly, stable occlusion can be formed between the combining part and the combining hole of the conveying belt, stable power transmission is kept, and machining precision can be further improved.
Drawings
FIG. 1 is a step diagram of the flange end face machining method;
FIG. 2 is a side view of the flange face machining assembly;
FIG. 3 is a schematic view of the flange face machining assembly;
FIG. 4 is a schematic structural view of the present flange face machining assembly skip assembly;
FIG. 5 is a schematic structural view of the flange end face machining assembly at a transmission belt;
FIG. 6 is a schematic view of the flange end face machining assembly engaging portion;
FIG. 7 is a schematic view showing the structure of the flange end face machining assembly when the flange end face machining assembly is combined;
FIG. 8 is a schematic drawing showing the torque applied to the flange face machining assembly.
In the figure: 1. a positioning frame; 2. a clamping member; 3. a first rotating arm; 4. a first processing seat; 5. A second rotating arm; 6. a second machining seat; 7. a central rotating shaft; 8. a speed-regulating driven wheel; 9. a speed regulation driving wheel; 10. a transmission belt; 11. an output bevel gear; 12. an input bevel gear; 13. a support frame; 14. a first sleeve; 15. a second sleeve; 41. a first cutter; 61. a second cutter; 62. a jumping component; 621. a cross bar; 622. jumping the telescopic rod; 623. an inductor; 91. A connecting shaft; 92. a speed-regulating telescopic rod; 93. a bonding section; 931. a base; 932. a slideway; 933. A support bar; 934. shaking the plate; 101. a saw-tooth groove.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Example 1
Referring to fig. 1, a flange end face machining method includes the steps of:
s1: driving a first cutter with a first feed force to draw a circle from the outer edge to the inner edge of the end surface of the flange, and driving a second cutter with a second feed force to draw a circle from the inner edge to the outer edge of the end surface of the flange;
s2: in the machining process, the torque of the first cutter to the center of the end face of the flange is kept equal to the torque of the second cutter to the center of the end face of the flange, and the directions are opposite;
s3: when the first cutter and the second cutter are on the same to-be-machined ring layer of the flange end face, one cutter is withdrawn, and the other cutter completes machining of the flange end face.
The flange end face machining method has the advantages that the two cutters are used for machining the flange end face, machining efficiency is high, cutting force torques generated by the two cutters on the flange in the machining process can be mutually offset, clamping burden of the flange is reduced, accordingly, shaking of the flange end face in machining is reduced, and size errors of the flange end face can be reduced.
Example 2
In this embodiment, a flange end face machining assembly based on the flange end face machining method in embodiment 1 is provided, and referring to fig. 2 and 3, the flange end face machining assembly includes a rack, and an annular positioning frame 1, a first rotating arm 3, a first machining seat 4, a second rotating arm 5, a second machining seat 6, and a central rotating shaft 7 are disposed on the rack. Specifically, locating rack 1 fixed connection frame, central pivot 7 and frame swivelling joint, locating rack 1 and the coaxial setting of central pivot 7, the one end of central pivot 7 sets up driving motor.
Further, the inner wall of locating rack 1 evenly sets up a plurality of centripetal holders 2, and the flange is placed in locating rack 1 inside, and holder 2 can carry out the centre gripping to the side of flange, is fixed in the middle part of locating rack 1 with the flange. The length of the clamping piece 2 is adjustable, and the clamping piece is used for clamping flanges with different radius sizes.
Further, first swinging boom 3 is fixed to be cup jointed in central pivot 7, set up first processing seat 4 on the first swinging boom 3, first processing seat 4 and first swinging boom 3 sliding connection set up sharp drive servo between first processing seat 4 and the first swinging boom 3 for first processing seat 4 can remove along first swinging boom 3. The first machining seat 4 is provided with a first tool 41, and a first feed cutting force sensor is arranged between the first machining seat 4 and the first tool 41 and used for sensing the cutting force of the first tool 41 perpendicular to the radial line of the flange in the horizontal plane. The first machining seat 4 is provided with a first distance sensor for detecting the distance between the first tool 41 and the axis of the central rotating shaft 7.
Further, the second rotating arm 5 is rotatably sleeved on the central rotating shaft 7, a second machining seat 6 is arranged on the second rotating arm 5, the second machining seat 6 is slidably connected with the second rotating arm 5, and a linear driving servo is arranged between the second machining seat 6 and the second rotating arm 5, so that the second machining seat 6 can move along the second rotating arm 5. The second machining seat 6 is provided with a second tool 61, and a jumping assembly 62 for the second tool 61 to cross the first rotating arm 3 is arranged between the second tool 61 and the second machining seat 6 as the second rotating arm 5 is positioned above the first rotating arm 3.
Referring to fig. 4, jumping assembly 62 includes a set of horizontal pole 621, the jump telescopic link 622 that is located parallel arrangement from top to bottom between horizontal pole 621 and the vertical setting of axis and is located the inductor 623 at horizontal pole 621 both ends, is located upper horizontal pole 621 (later called upper portion horizontal pole) fixed connection second processing seat 6 is located the lower horizontal pole 621 (later called lower part horizontal pole) fixed connection second cutter 61, the upper end fixed connection of jump telescopic link 622 is located upper horizontal pole 621, the lower extreme of jump telescopic link 622 sets up the electro-magnet, the upper surface that is located the lower part horizontal pole 621 sets up permanent magnet and the recess that corresponds with jump telescopic link 622 lower extreme electro-magnet position. When the second cutter works normally, the electromagnet at the lower end of the jumping telescopic rod 622 is electrified, the electromagnet attracts the permanent magnet, the lower end of the jumping telescopic rod 622 is located in the groove of the lower cross rod 621, the lower cross rod 621 is fixedly located below the upper cross rod 621, and the second cutter 61 works normally.
The first rotating arm 3 corresponds to a space between the cross bar 621. When the first rotating arm 3 passes between the cross bars 621, the sensor 623 at the entrance end of the cross bar 621 senses that the first rotating arm 3 passes through, and the controller can control the jumping telescopic rod 622 to sequentially contract from the entrance end of the cross bar 621 to the exit end of the cross bar 621 and cut off the power of the electromagnet until the first rotating arm 3 leaves between the cross bars 621, so that the first rotating arm 3 does not interfere with the jumping telescopic rod 622, and the jumping of the second cutter 61 is completed. In this process, after the first rotating arm 3 passes through the retracted jumping telescopic rod 622, the jumping telescopic rod 622 rapidly extends to return and completes the energization of the electromagnet, so that the relative positions of the two cross bars 621 do not change, and the second cutter 61 still works normally.
Similarly, a second feed cutting force sensor is arranged between the second machining seat 6 and the second tool 61 and used for sensing the cutting force of the second tool 61 perpendicular to the radial line of the flange in the horizontal plane. A second feed cutting force sensor is mounted between the second machining seat 6 and the upper crossbar. And a second distance sensor is arranged on the second processing seat 6 and used for detecting the distance between the second cutter 61 and the axis of the central rotating shaft 7.
Furthermore, a reverse speed regulation structure is arranged between the central rotating shaft 7 and the second rotating arm 5, and the rotating directions of the first rotating arm 3 and the second rotating arm 5 can be opposite by the reverse speed regulation structure. The reverse speed regulating structure comprises a speed regulating driven wheel 8, a speed regulating driving wheel 9, a transmission belt 10, an output bevel gear 11 and an input bevel gear 12. The upper end of the first sleeve 14 is provided with an upper bevel gear part, the upper bevel gear part is meshed with an output bevel gear 11, the output bevel gear 11 is coaxially and fixedly connected with a speed regulation driven wheel 8 through an output shaft, the lower end of the second sleeve 15 is provided with a lower bevel gear part, the lower bevel gear part is meshed with an input bevel gear 12, the input bevel gear 12 is coaxially and fixedly connected with a speed regulation driving wheel 9 through an output shaft, and the speed regulation driven wheel 8 is connected with the speed regulation driving wheel 9 through a conveyor belt 10. The output shaft and the input shaft are both rotationally connected with the frame.
Further, referring to fig. 5, the speed regulation driving wheel 9 includes a connecting shaft 91, a speed regulation telescopic rod 92 is uniformly arranged on the side surface of the connecting shaft 91, the speed regulation telescopic rod 92 is annularly arranged, one end of the speed regulation telescopic rod 92 is fixedly connected with the connecting shaft 91, a combining part 93 is arranged at the extending end of the speed regulation telescopic rod 92, the speed regulation telescopic rod 92 can extend or shorten, the radius of the speed regulation driving wheel 9 is changed, so as to realize rotation speed regulation, the connecting shaft 91 is fixedly connected with the input shaft, and a zigzag groove 101 corresponding to the combining part 93 is formed in the conveyor belt 10.
In the structure, the central rotating shaft 7 drives the first sleeve 14 to rotate, the output bevel gear 11 rotates along with the first sleeve 14, the output bevel gear 11 drives the output shaft and the speed regulation driven wheel 8 to rotate, the speed regulation driven wheel 8 drives the speed regulation driving wheel 9 to rotate through the conveying belt 10, the speed regulation driving wheel 9 drives the input bevel gear 12 to rotate through the output shaft, the input bevel gear 12 drives the second sleeve 15 and the second rotating arm 5 to rotate, and the rotating direction of the second rotating arm 5 is opposite to that of the first rotating arm 3.
Furthermore, the first rotating arm 3 and the second rotating arm 5 are respectively provided with a sliding support connected with the positioning frame 1 in a sliding manner at one end far away from the central rotating shaft 7. The sliding support can support the first rotating arm 3 and the second rotating arm 5, so that the first rotating arm 3 and the second rotating arm 5 can run more stably.
Further, referring to fig. 6, the combining portion 93 of the speed regulation driving wheel 9 includes a base 931, a slide 932, a supporting rod 933 and a rocking plate 934, the upper end of the base 931 is provided with a horizontal slide 932, the bottom of the supporting rod 933 is slidably connected with the slide 932, the top of the supporting rod 933 is rotatably connected with the middle of the rocking plate 934, and the width of the rocking plate 934 is smaller than the widest width of the sawtooth-shaped groove 101 in the conveying direction. In the transmission of speed governing action wheel 9, rocking plate 934 contact conveyer belt 10 when joint 93, rocking plate 934 can be whole or two get into zigzag recess 101, refer to fig. 7, it gets into zigzag recess 101 to rock plate 934 when two, because there is contact pressure between conveyer belt 10 and the joint 93, rocking plate 934 can produce the slope, bracing piece 933 produces the removal simultaneously, make rocking plate 934 up the end that inclines slide into zigzag recess 101, carry out the outrigger to zigzag recess 101, realize stable interlock between joint 93 and the zigzag recess 101, keep the transmission of stable power. For better realizing the spacing of the rocking plate 934 and the sawtooth-shaped grooves 101, arc surfaces are arranged on spacing blocks between the sawtooth-shaped grooves 101 on the conveyor belt 10, so that the rocking plate 934 can be inclined.
The working process of the circumferential flange end face machining equipment is as follows:
the method comprises the following steps: the flange is fixedly arranged in the middle of the inside of the positioning frame 1 through a clamping piece 2.
Step two: and adjusting the position of the first processing seat 4 on the first rotating arm 3 to enable the first cutter 41 on the first processing seat 4 to be positioned at the inner edge of the flange end surface, and adjusting the position of the second processing seat 6 on the second rotating arm 5 to enable the second cutter 61 on the second processing seat 6 to be positioned at the outer edge of the flange end surface.
Step three: after the cutter is dropped, the central rotating shaft 7 is driven to rotate, the central rotating shaft 7 directly drives the first rotating arm 3 to rotate in the forward direction, the output bevel gear 11 rotates along with the first sleeve 14, the output bevel gear 11 drives the output shaft and the speed regulation driven wheel 8 to rotate, the speed regulation driven wheel 8 drives the speed regulation driving wheel 9 to rotate through the conveying belt 10, the speed regulation driving wheel 9 drives the input bevel gear 12 to rotate through the output shaft, the input bevel gear 12 drives the second sleeve 15 and the second rotating arm 5 to rotate, and at the moment, the second rotating arm 5 rotates in the reverse direction;
the first tool 41 and the second tool 61 simultaneously process the flange end face, wherein after one circle of processing is completed by the first tool 41, the first processing seat 4 moves on the first rotating arm 3, the first tool 41 continues to process the adjacent inner ring, and the second tool 61 processes the flange end face outwards one circle by one from the inner edge;
in this process, when the first rotating arm 3 passes between the cross bars 621, the first rotating arm 3 does not interfere with the jumping telescopic rod 622, and the jumping and the normal operation of the second tool 61 can be completed; the speed-regulating telescopic rod 92 can be extended or shortened, the radius of the speed-regulating driving wheel 9 is changed, and the rotation speed regulation is realized, so that the cutting speed and the cutting force of the opposite end surface of the second cutter 61 are changed, referring to fig. 8, and the first feeding cutting force F corresponding to the first cutter 41 is enabled to be changed1Second feed cutting force F corresponding to second tool 612The torques formed by the two cutters on the flange are the same, so that the cutting force torques generated by the two cutters on the flange can be mutually offset, and the clamping burden of the flange is reduced, thereby reducing the vibration of the end face of the flange in the processing process and reducing the size error of the end face;
wherein, in the transmission of speed governing action wheel 9, rocking plate 934 contact conveyer belt 10 when joint portion 93, rocking plate 934 can not whole get into and combine hole 101, because there is contact pressure between conveyer belt 10 and the joint portion 93, rocking plate 934 can produce the slope, bracing piece 933 produces the removal simultaneously, make rocking plate 934 up the end slip-in that inclines combine hole 101, carry out the outrigger to combination hole 101, realize the joint portion 93 and combine stable interlock between the hole 101, keep the transmission of stable power.
Step four: when the first cutter 41 and the second cutter 61 are on the same ring layer to be processed on the flange end surface, the second cutter 61 retracts, and the first cutter 41 finishes processing the flange end surface.
The flange end face machining assembly in the embodiment is used for machining the flange end face by using the two cutters, machining efficiency is high, and cutting force torques generated by the two cutters on the flange can be mutually offset, so that the shaking of the flange end face in machining is reduced, and the size error of the end face is reduced.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (5)
1. The flange end face machining method is characterized by comprising the following steps of:
s1: driving a first cutter with a first feed force to draw a circle from the outer edge to the inner edge of the end surface of the flange, and driving a second cutter with a second feed force to draw a circle from the inner edge to the outer edge of the end surface of the flange;
s2: in the machining process, the torque of the first cutter to the center of the end face of the flange is kept equal to the torque of the second cutter to the center of the end face of the flange, and the directions are opposite;
s3: when the first cutter and the second cutter are on the same ring layer to be processed on the flange end face, retracting one cutter, and finishing the processing of the flange end face by the other cutter;
the flange end face machining method is realized through a flange end face machining assembly, the flange end face machining assembly comprises an annular positioning frame (1), clamping pieces (2), a first rotating arm (3), a first machining seat (4), a second rotating arm (5), a second machining seat (6) and a central rotating shaft (7), the positioning frame (1) and the central rotating shaft (7) are coaxially arranged, a plurality of centripetal clamping pieces (2) are uniformly arranged on the inner wall of the positioning frame (1), the first rotating arm (3) is fixedly sleeved on the central rotating shaft (7) through a first sleeve (14), the first machining seat (4) is arranged on the first rotating arm (3), the first machining seat (4) is in sliding connection with the first rotating arm (3), a first cutter (41) is arranged on the first machining seat (4), the second rotating arm (5) is rotatably sleeved on the central rotating shaft (7) through a second sleeve (15), a second processing seat (6) is arranged on the second rotating arm (5), the second processing seat (6) is connected with the second rotating arm (5) in a sliding manner, a second cutter (61) is arranged on the second processing seat (6), the second rotating arm (5) is positioned above the first rotating arm (3), and a jumping assembly (62) for the second cutter (61) to cross the first rotating arm (3) is arranged between the second cutter (61) and the second processing seat (6);
a reverse speed regulation structure is arranged between the central rotating shaft (7) and the second rotating arm (5), the reverse speed regulation structure comprises a speed regulation driven wheel (8), a speed regulation driving wheel (9), a transmission belt (10), an output bevel gear (11) and an input bevel gear (12), an upper bevel gear part is arranged at the upper end of the first sleeve (14), the upper bevel gear part is meshed with the output bevel gear (11), the output bevel gear (11) is coaxially and fixedly connected with the speed regulation driven wheel (8) through an output shaft, a lower bevel gear part is arranged at the lower end of the second sleeve (15), the lower bevel gear part is meshed with the input bevel gear (12), the input bevel gear (12) is coaxially and fixedly connected with the speed regulation driving wheel (9) through an output shaft, and the speed regulation driven wheel (8) is connected with the speed regulation driving wheel (9) through the transmission belt (10);
the speed regulation driving wheel (9) comprises a connecting shaft (91), a speed regulation telescopic rod (92) and a joint part (93) located at the extending end of the speed regulation telescopic rod (92), the connecting shaft (91) is fixedly connected with the output shaft, and a sawtooth-shaped groove (101) corresponding to the joint part (93) is formed in the conveyor belt (10).
2. The flange end face machining method according to claim 1, characterized in that the jumping assembly (62) comprises a group of cross bars (621) which are arranged in parallel up and down, jumping telescopic rods (622) which are arranged between the cross bars (621) and have vertical axes, and inductors (623) which are arranged at two ends of the cross bars (621), wherein the cross bars (621) which are arranged at the upper part are fixedly connected with a second machining seat (6), the cross bars (621) which are arranged at the lower part are fixedly connected with a second cutter (61), the upper ends of the jumping telescopic rods (622) are fixedly connected with the cross bars (621) which are arranged at the upper part, the lower ends of the jumping telescopic rods (622) are provided with electromagnets, and the upper surfaces of the cross bars (621) which are arranged at the lower part are provided with permanent magnets and grooves which correspond to the electromagnets at the lower ends of the jumping telescopic rods (622).
3. The flange end face machining method according to claim 2, wherein the combining portion (93) of the speed regulation driving wheel (9) comprises a base (931), a slide rail (932), a supporting rod (933) and a rocking plate (934), the upper end of the base (931) is provided with a horizontal slide rail (932), the bottom of the supporting rod (933) is in sliding connection with the slide rail (932), and the top of the supporting rod (933) is in rotating connection with the middle of the rocking plate (934).
4. The flange end face machining method according to claim 1 or 3, characterized in that sliding supports connected with the positioning frame (1) in a sliding manner are respectively arranged at one ends of the first rotating arm (3) and the second rotating arm (5) far away from the central rotating shaft (7).
5. The flange end face machining method according to claim 4, characterized in that a first feed cutting force sensor is arranged between the first machining seat (4) and the first tool (41), and a second feed cutting force sensor is arranged between the second machining seat (6) and the second tool (61);
a first distance sensor is arranged between the first processing seat (4) and the central rotating shaft (7), and a second distance sensor is arranged between the second processing seat (6) and the central rotating shaft (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110542769.6A CN113210745B (en) | 2021-05-19 | 2021-05-19 | Flange end face machining method |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3909292A1 (en) * | 1988-03-24 | 1989-10-26 | Hihaisuto Seiko K K | LENGTH AND CROSS TABLE GUIDE AND TURNING MECHANISM |
| CN102476190A (en) * | 2010-11-26 | 2012-05-30 | 大连佐佐木专用设备制造有限公司 | Special equipment for turning end surface of flange-type tee-joint valve |
| CN103537715A (en) * | 2013-09-18 | 2014-01-29 | 宁夏宝塔石化科技实业发展有限公司 | Movable flange end face machining machine |
| CN206185146U (en) * | 2016-11-10 | 2017-05-24 | 丁乐冲 | Flange terminal surface processingequipment |
| CN206567896U (en) * | 2017-01-22 | 2017-10-20 | 杨奕祥 | One kind automation end face processing machine |
| CN110576195A (en) * | 2019-09-18 | 2019-12-17 | 江苏美控机床有限公司 | Numerical control double-end vertical lathe |
-
2021
- 2021-05-19 CN CN202110542769.6A patent/CN113210745B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3909292A1 (en) * | 1988-03-24 | 1989-10-26 | Hihaisuto Seiko K K | LENGTH AND CROSS TABLE GUIDE AND TURNING MECHANISM |
| CN102476190A (en) * | 2010-11-26 | 2012-05-30 | 大连佐佐木专用设备制造有限公司 | Special equipment for turning end surface of flange-type tee-joint valve |
| CN103537715A (en) * | 2013-09-18 | 2014-01-29 | 宁夏宝塔石化科技实业发展有限公司 | Movable flange end face machining machine |
| CN206185146U (en) * | 2016-11-10 | 2017-05-24 | 丁乐冲 | Flange terminal surface processingequipment |
| CN206567896U (en) * | 2017-01-22 | 2017-10-20 | 杨奕祥 | One kind automation end face processing machine |
| CN110576195A (en) * | 2019-09-18 | 2019-12-17 | 江苏美控机床有限公司 | Numerical control double-end vertical lathe |
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| CN113210745A (en) | 2021-08-06 |
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