CN118559450B - Exhaust flange processing location frock - Google Patents
Exhaust flange processing location frock Download PDFInfo
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- CN118559450B CN118559450B CN202411046659.0A CN202411046659A CN118559450B CN 118559450 B CN118559450 B CN 118559450B CN 202411046659 A CN202411046659 A CN 202411046659A CN 118559450 B CN118559450 B CN 118559450B
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- 230000017105 transposition Effects 0.000 claims abstract description 48
- 230000000903 blocking effect Effects 0.000 claims description 69
- 238000003754 machining Methods 0.000 abstract description 14
- 238000005553 drilling Methods 0.000 description 8
- 238000000034 method Methods 0.000 description 7
- 230000005611 electricity Effects 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 210000001503 joint Anatomy 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Classifications
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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
-
- 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
- B23Q2703/00—Work clamping
- B23Q2703/02—Work clamping means
- B23Q2703/10—Devices for clamping workpieces of a particular form or made from a particular material
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Jigs For Machine Tools (AREA)
Abstract
The invention discloses an exhaust flange machining positioning tool, and relates to the technical field of flange machining. The invention comprises a lifting platform, wherein a driving base is fixedly arranged at the top of the lifting platform, a transposition ring is arranged at the top of the driving base in a driving manner, a plurality of electric driving sliding rails uniformly distributed along the axis of the transposition ring are fixedly arranged at the top of the transposition ring, electric driving sliding seats are respectively arranged at the tops of the electric driving sliding rails in a driving manner, lifting sliding seats are respectively and fixedly arranged at the tops of the electric driving sliding seats, and lifting sliding carriages are respectively arranged at the tops of the lifting sliding seats. According to the invention, the screw hole positioning assembly is arranged, so that after the first screw hole is machined, the flange is driven to lift by the elevator platform until the bottom of the guide arc plate stretches into the screw hole, and the guide arc plate is driven by the driving motor to clamp from the screw hole, so that the flange can not axially rotate due to vibration when the flange is continuously drilled, and the situation of position deviation of the screw hole can be avoided on the premise that the positioning hole is not machined.
Description
Technical Field
The invention relates to the technical field of flange machining, in particular to an exhaust flange machining positioning tool.
Background
The flange is mainly used for connecting two adjacent pipe fittings to guarantee the tight connection between the pipe fittings, and in the automobile exhaust pipe field, the flange is usually used for interconnect between two blast pipes, the through-hole has been seted up at the flange center, a plurality of screw mounting holes have been seted up to the periphery, two pipes respectively with two flange welded fastening after, again adopt the bolt with two flange fixed connection, thereby accomplish the connection between two blast pipes, in the production flow of flange, generally need set up the location frock on the digit control machine tool that is exclusively used in flange processing and fix the flange.
The existing positioning tool for flange machining usually utilizes a clamping mechanism on the tool to position and clamp a flange blank, but in the machining process of an end face screw hole of a flange, only the flange is clamped and fixed, when a machine tool bit is used for machining the screw hole, the flange is enabled to generate axial deviation, so that the drilling precision is reduced, in order to ensure the machining precision, the positioning hole is required to be machined on the flange in advance, then the positioning tool is fixed with the tool, and the machining of the end face screw hole of the flange cannot be directly performed.
Disclosure of Invention
The invention aims at: in order to solve the problems that in the existing positioning tool for flange processing, a clamping mechanism on the tool is used for positioning and clamping a flange blank, but in the processing process of an end face screw hole of a flange, the flange is axially offset only by clamping and fixing the flange, so that the drilling precision is reduced when a machine tool bit is used for processing the screw hole, and in order to ensure the processing precision, a positioning hole is required to be processed on the flange in advance and then is fixed with the tool, and the processing of the end face screw hole of the flange cannot be directly performed, the invention provides the exhaust flange processing positioning tool.
The invention adopts the following technical scheme for realizing the purposes:
The utility model provides an exhaust flange processing location frock, includes the lift platform, the top fixed mounting of lift platform has the drive base, the top drive of drive base installs the transposition ring, the top fixed mounting of transposition ring has a plurality of electric drive slide rail of following transposition ring axis evenly distributed, the top of electric drive slide rail all drives and installs the electric drive slide, the top of electric drive slide carriage all fixed mounting has the lift slide carriage, the top of lift slide carriage all is provided with the lift balladeur train, the bottom slidable mounting of lift balladeur train is in the inside of lift slide carriage, the top one side fixed mounting of lift balladeur train has outer grip block, fixedly mounting has a plurality of internal clamp electricity push rods of following transposition ring axis evenly distributed on the lateral wall of transposition ring, a plurality of through-holes have been seted up on the lateral wall of transposition ring, a plurality of internal clamp electricity push rods's flexible end respectively runs through a plurality of through-holes and fixed mounting have interior centre gripping frame, the top of interior centre gripping frame all fixed mounting has down branch, the top of lift platform is provided with screw hole locating component;
the screw hole positioning assembly is used for being in butt joint and fixation with the screw hole after the first screw hole is machined;
the screw hole locating component comprises a fixed ring fixedly sleeved at the bottom of the elevator platform, a driven swivel is rotatably sleeved on the fixed ring, a plurality of linkage sliding holes are formed in the top of the driven swivel, linkage sliding rods are fixedly installed at the bottom of the electric drive sliding rail, the linkage sliding rods are respectively and slidably installed in the linkage sliding holes, a plurality of supporting frames which are uniformly distributed are fixedly installed on the periphery of the driven swivel, a locating ring frame is fixedly installed at the top of the supporting frames, an electric push rod is fixedly installed at the top of the locating ring frame, a driving frame is fixedly installed at the telescopic end of the electric push rod, a driving motor is installed at the top of the driving frame in a driving mode, a double-head screw is rotatably installed at the top of the driving frame, driving screw sleeves are respectively and slidably installed at the two ends of the driving frame, guide rods are fixedly installed on the side walls of the driving screw sleeves, one ends of the guide rods face to the locating ring, two guide plates are symmetrically installed at the two guide plates, and the guide plates are symmetrically distributed.
Further, two sides of the guiding arc plates, which are far away from each other, are fixedly provided with the inner supporting rods of the screw holes.
Further, a central positioning rod is fixedly arranged at the top of the driving base, and the axis of the central positioning rod is consistent with the axis of the transposition ring.
Further, the top of interior holder is all fixed mounting has the downthehole butt pole of flange, a plurality of downthehole butt pole of flange is followed the axis evenly distributed of center locating lever.
Further, a plurality of positioning center plates which are uniformly distributed along the axis of the central positioning rod are fixedly arranged at the bottom of the positioning ring frame, a fixing frame is fixedly arranged at one side of the elevator table, a supporting plate is fixedly arranged at the top of the fixing frame, a first blocking electric push rod is fixedly arranged at the top of the supporting plate, a first blocking plate is fixedly arranged at the telescopic end of the first blocking electric push rod, and the first blocking plate and the positioning center plates are located at the same height.
Further, a second blocking electric push rod is fixedly arranged at the top of the supporting plate, a second blocking plate is fixedly arranged at the telescopic end of the second blocking electric push rod, and the first blocking plate and the second blocking plate are symmetrically distributed.
Further, a telescopic spring seat is fixedly arranged on one side, close to the second blocking plate, of the first blocking plate, a pressure measuring plate is fixedly arranged on one side, close to the second blocking plate, of the telescopic spring seat, and a pressure sensor is arranged in the telescopic spring seat.
Further, lifting electric push rods are fixedly installed on one sides of the lifting sliding seats, and the top ends of the lifting electric push rods are fixedly installed on one sides of the lifting sliding frames.
The beneficial effects of the invention are as follows:
1. According to the invention, the screw hole positioning assembly is arranged, so that after the first screw hole is machined, the flange is driven to lift by the elevator platform until the bottom of the guide arc plate stretches into the screw hole, and the guide arc plate is driven by the driving motor to clamp from the inside of the screw hole, so that the flange can not axially rotate due to vibration when the flange is continuously drilled, and the situation of position deviation of the screw hole can be avoided on the premise that the positioning hole is not machined;
2. According to the invention, the inner clamping electric push rods can respectively drive the inner clamping frames to move by arranging the lower support rods, so that the positions of the lower support rods can be adjusted according to the size of the flange plate of the end face screw hole to be processed, the lower support rods are positioned in the annular area between the flange hole and the outer side wall of the flange plate, and meanwhile, the positions of the end face screw hole to be processed can be avoided, so that the lower support rods can not block the feeding of a numerical control machine tool bit on the premise of stably supporting the flange;
3. According to the invention, the two guide arc plates are respectively contacted with the inner wall of the screw hole after extending into the first screw hole by arranging the support rod in the screw hole, and the moving guide arc plates simultaneously drive the support rod in the screw hole to contact with the inner wall of the screw hole and compress the support rod in the screw hole, so that clamping pressure is applied to the screw hole from the inside, six-point clamping is realized, and the stability of clamping the screw hole by the support rod in the screw hole is improved;
4. According to the invention, the flange hole inner supporting rods are arranged, so that when the flange is sleeved on the central positioning rod, each flange hole inner supporting rod can be positioned in the flange hole, the central positioning rod is matched to perform a preliminary positioning function, after the outer wall of the flange is stably clamped by the outer clamping plate, the inner clamping electric push rod can drive the flange hole inner supporting rod to contact the inner wall of the flange hole, and the flange is clamped and fixed from the inside, so that the flange is clamped by the inner side and the outer side to improve the positioning stability;
5. According to the invention, the first blocking plate is arranged, so that after the first screw hole is machined, the transposition ring drives the flange to axially rotate, in the rotating process, the positioning ring frame drives each positioning center plate to synchronously rotate until the positioning center plate representing the position of the next screw hole arrives, the first blocking electric push rod drives the first blocking plate to move, the effect of pre-blocking is achieved, and the transposition ring is prevented from excessively rotating to cause the dislocation of the positions of the screw holes;
6. According to the invention, the second blocking plate is arranged, so that after the second screw hole rotates in place, the second blocking electric push rod drives the second blocking plate to move to the other side of the positioning center plate and contact with the positioning center plate, and the first blocking plate and the second blocking plate respectively play a limiting role on the positioning center plate from two sides, so that the phenomenon that the transposition ring is overturned or is influenced by vibration during processing, and the processing precision is influenced is prevented;
7. According to the invention, by arranging the pressure sensor, if the flange does not excessively rotate, the positioning center plate representing the position of the screw hole is just contacted with the pressure measuring plate, excessive pressure is not applied to the telescopic spring seat, so that a pressure signal of the pressure sensor is kept in a standard range, and if the position of the screw hole is misplaced, the positioning center plate is extruded by the pressure measuring plate or is not contacted with the pressure measuring plate at all, so that the pressure signal is excessively large or excessively small, and the transposition is controlled to return to the correct position.
Drawings
FIG. 1 is a schematic view of a first perspective of the present invention;
FIG. 2 is a schematic view of a second perspective of the present invention;
FIG. 3 is a schematic view of a three-dimensional structure of the elevator table and the transposition ring of the invention;
FIG. 4 is a schematic view of the structure of the electric drive slide rail and the outer clamping plate of the invention;
FIG. 5 is a schematic diagram of the internal clamping push rod and lower support rod matched three-dimensional structure of the invention;
FIG. 6 is a schematic perspective view of a screw hole positioning assembly according to the present invention;
FIG. 7 is a schematic view of a three-dimensional structure of the drive frame and the guide arc plate of the present invention;
FIG. 8 is a schematic perspective view of the first and second baffle plates of the present invention;
Reference numerals: 1. a lift table; 2. a driving base; 3. a transposition ring; 4. an electrically driven slide rail; 5. an electrically driven slide; 6. lifting the sliding seat; 7. lifting the sliding frame; 8. an outer clamping plate; 9. an inner clamping electric push rod; 10. an inner clamping frame; 11. a lower support rod; 12. a fixing ring; 13. a driven swivel; 14. a support frame; 15. a positioning ring frame; 16. a linkage slide hole; 17. a linkage slide bar; 18. positioning an electric push rod; 19. a drive rack; 20. a driving motor; 21. double-end screw rod; 22. driving the screw sleeve; 23. a guide rod; 24. a guide arc plate; 25. a supporting rod is arranged in the screw hole; 26. a center positioning rod; 27. a supporting rod in the flange hole; 28. positioning a center plate; 29. a fixing frame; 30. a support plate; 31. a first blocking electric push rod; 32. a first blocking plate; 33. a telescopic spring seat; 34. a pressure measuring plate; 35. a second blocking electric push rod; 36. a second blocking plate; 37. lifting the electric push rod.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures. Furthermore, the terms "first," "second," and the like, are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.
In describing embodiments of the present invention, it should be noted that the directions or positional relationships indicated by the terms "inner", "outer", "upper", etc. are directions or positional relationships based on those shown in the drawings, or those that are conventionally put in place when the inventive product is used, are merely for convenience of description and simplification of description, and are not indicative or implying that the apparatus or element in question must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the present invention.
As shown in fig. 1 to 8, an exhaust flange processing positioning tool comprises a lifter 1, a driving base 2 is fixedly installed at the top of the lifter 1, a transposition ring 3 is installed at the top of the driving base 2, in this embodiment, the lifter 1 is of a linear execution structure and can be driven by hydraulic pressure or electric power, the driving base 2 is of an axial rotation execution structure and can be driven by electric power, the top of the lifter 1 is of a frame structure, a plurality of large-area holes exist, the driving base 2 is of an annular base structure, the lifter 1 and the driving base 2 respectively support and drive the transposition ring 3, simultaneously, no obstruction is caused to the falling of metal scraps generated in the screw hole processing process, the metal scraps can pass through the tops of the driving base 2 and the lifter 1 and directly fall on the bottom of the lifter 1, the electric drive slide rails 4 which are uniformly distributed along the axis of the transposition ring 3 are fixedly arranged at the top of the transposition ring 3, as shown in fig. 4, the electric drive slide carriages 5 are respectively arranged at the top of the electric drive slide rails 4 in a driving way, the lifting slide carriages 6 are respectively and fixedly arranged at the top of the electric drive slide carriages 5, the lifting slide carriages 7 are respectively arranged at the top of the lifting slide carriages 6, the bottom ends of the lifting slide carriages 7 are slidably arranged in the lifting slide carriages 6, the outer clamping plates 8 are fixedly arranged at one side of the top ends of the lifting slide carriages 7, the inner clamping electric push rods 9 which are uniformly distributed along the axis of the transposition ring 3 are fixedly arranged on the outer side wall of the transposition ring 3, the through holes are formed in the side wall of the transposition ring 3, as shown in fig. 5, the telescopic ends of the inner clamping electric push rods 9 respectively penetrate through the through holes and are fixedly arranged with the inner clamping frames 10, the lower supporting rods 11 are fixedly arranged at the tops of the inner clamping frames 10, in the embodiment, before the flange is tested, the model of the flange is actually known, so that various data of the flange standard component of the model can be called out, including the height, the maximum and minimum outer diameters of the flange, the inner diameter of the flange hole, the positions, the number, the inner diameter and the like of the end face screw holes to be processed, and a data reference can be provided for the regulation and control of each component of the positioning tool and the mobile processing of a subsequent numerical control machine tool; when the exhaust flange machining positioning tool is used, firstly, a flange plate of an end face screw hole to be machined is placed on a plurality of lower support rods 11, then an electric drive sliding seat 5 is driven to move by an electric drive sliding rail 4, each outer clamping plate 8 is driven by a lifting sliding frame 7 to push the flange to move automatically, the flange is clamped by the outer clamping plate 8 to be positioned, a numerical control machine tool drives a drill bit to reach the top of a preset drilling position and then descends to drill, the lower support rods 11 are arranged, each inner clamping push rod 9 can respectively drive an inner clamping frame 10 to move, the positions of the lower support rods 11 can be adjusted according to the size of the flange plate of the end face screw hole to be machined, the lower support rods 11 are located in an annular area between the flange hole and the outer side wall of the flange plate, and meanwhile, the positions of the end face screw hole to be machined can be avoided, and the lower support rods 11 can not block the feeding of a numerical control machine tool drill bit on the premise of stably supporting the flange;
the screw hole positioning assembly is used for being in butt joint and fixation with the screw hole after the first screw hole is machined;
As shown in fig. 6, the screw hole positioning assembly comprises a fixed ring 12 fixedly sleeved at the bottom of the elevator platform 1, a driven swivel 13 is rotatably sleeved on the fixed ring 12, a plurality of linkage sliding holes 16 are formed in the top of the driven swivel 13, linkage sliding rods 17 are fixedly installed at the bottom of the electric drive sliding rail 4, a plurality of linkage sliding rods 17 are respectively and slidably installed in the plurality of linkage sliding holes 16, a plurality of uniformly distributed supporting frames 14 are fixedly installed at the periphery of the driven swivel 13, a positioning ring frame 15 is fixedly installed at the top of the plurality of supporting frames 14, a positioning electric push rod 18 is fixedly installed at the top of the positioning ring frame 15, a driving frame 19 is fixedly installed at the telescopic end of the positioning electric push rod 18, a driving motor 20 is fixedly installed at the top of the driving frame 19, a double-end screw rod 21 is installed at the output end of the driving motor 20 in a driving mode, the double-end screw rod 21 is rotatably installed at the top of the driving frame 19, driving screw sleeves 22 are respectively and slidably installed at the bottom of the driving frame 19, guiding rods 23 are fixedly installed on the side walls of the driving screw sleeves 22, guiding rods 3 face to one end of each guiding plate 24 and are symmetrically distributed at one end 24 of each guiding plate; specifically, through setting up screw hole locating component for before first screw hole processing, drive base 2 can drive transposition ring 3 rotatory, and then drive the flange rotation through outer grip block 8, simultaneously through the cooperation of electric drive slide rail 4 bottom linkage slide bar 17 and linkage slide hole 16, drive the locating ring frame 15 rotatory through driven swivel 13, support frame 14, make two guide arc plates 24 that are located the one end of location electric putter 18 remove to the position top one side of predetermined drilling, first screw hole processing is accomplished the back, two guide arc plates 24 of location electric putter 18 drive move to this screw hole directly over, then driving motor 20 passes through double-end lead screw 21 and drive swivel nut 22 drive two guide arc plates 24 and is close to minimum interval each other, lift platform 1 drives the flange lifting, until the inside of two guide arc plates 24 stretches into the screw hole, finally driving motor 20 drives guide arc plates 24 and keeps away from each other and respectively the inner wall of contact screw hole, make guide arc plates 24 carry out the centre gripping to the screw hole from inside, make the position and the location electric putter 18 bind to this screw hole, and then make the position and the transposition ring position of transposition ring 3 bind when can continue the drilling can take place under the condition of the rotation of the flange, can continue the drilling can not take place under the condition of the axial displacement in order to avoid the position to rotate the flange to take place, can continue the processing to the position can be rotated when the flange is continued to the position can be rotated down the flange is processed and can be avoided.
In the embodiment shown in fig. 7, the supporting rod 25 in the screw hole is a telescopic rod formed by two rods which are slidably installed in parallel, the supporting rod 25 in the screw hole is parallel to the axis of the flange hole of the flange plate, the telescopic direction is perpendicular to the axis of the flange hole, and a plurality of springs parallel to the telescopic direction are arranged in the supporting rod 25 in the screw hole; specifically, through setting up in the screw hole support pole 25 for after two guide arc boards 24 stretch into the inside of first screw hole, the both ends of two guide arc boards 24 can contact the screw hole inner wall respectively, and the guide arc board 24 of removal can drive in the screw hole simultaneously support pole 25 contact screw hole inner wall and make in the screw hole support pole 25 compression, from inside apply clamping pressure to the screw hole, realize six point centre gripping, promoted the stability of in the screw hole support pole 25 to the screw hole centre gripping.
As shown in fig. 3, the top of the driving base 2 is fixedly provided with a central positioning rod 26, the axis of the central positioning rod 26 is consistent with the axis of the transposition ring 3, and in this embodiment, the outer diameter of the central positioning rod 26 is far smaller than the inner diameter of a flange hole of a common flange on the market; specifically, by arranging the central positioning rod 26, when the flange is placed, the flange hole on the flange can be sleeved on the linkage slide hole 16, so that the flange can be blocked by the central positioning rod 26 and supported by the bottom lower support rod 11 without falling off from the transposition ring 3 before being clamped.
As shown in fig. 5, the top of the inner clamping frame 10 is fixedly provided with a plurality of flange hole inner supporting rods 27, the plurality of flange hole inner supporting rods 27 are uniformly distributed along the axis of the central positioning rod 26, in this embodiment, the cross section of the flange hole inner supporting rods 27 is semicircular, and the convex parts of the plurality of flange hole inner supporting rods 27 face away from each other and towards the inner wall of the flange hole; specifically, through setting up downthehole butt pole 27 of flange for before the flange cup joints on central locating lever 26, interior clamp electricity push rod 9 can drive interior holder 10 and remove, make the circular regional internal diameter that a plurality of downthehole butt poles 27 of flange enclose be less than the internal diameter of flange hole, make the downthehole butt pole 27 of each flange all can be located the inside of flange hole, cooperation central locating lever 26 plays preliminary positioning action, after the flange outer wall is stabilized the centre gripping by outer grip block 8, interior clamp electricity push rod 9 can drive downthehole butt pole 27 of flange and contact the inner wall in flange hole, it is fixed to grasp the flange from inside, make the flange receive inside and outside both sides centre gripping and promote the steadiness of location.
As shown in fig. 6, a plurality of positioning center plates 28 uniformly distributed along the axis of the central positioning rod 26 are fixedly installed at the bottom of the positioning ring frame 15, as shown in fig. 2, a fixing frame 29 is fixedly installed at one side of the elevator table 1, a supporting plate 30 is fixedly installed at the top of the fixing frame 29, as shown in fig. 8, a first blocking electric push rod 31 is fixedly installed at the top of the supporting plate 30, a first blocking plate 32 is fixedly installed at the telescopic end of the first blocking electric push rod 31, the first blocking plate 32 and the positioning center plates 28 are located at the same height, in this embodiment, the number of the positioning center plates 28 is at least four, the number of screw holes is equal to the number of common screw holes of the flange plates, such as four, eight, sixteen, etc., in fig. 1, fig. 2 and fig. 6, the flange plates of sixteen screw holes are taken as examples, the central positioning rod 26 is located on the vertical surface at the center between the measuring plate 34 and the second blocking plate 36, the second blocking plate 36 and one end side edge of the pressure measuring plate 34 are provided with chamfers, two sides of one end, which are far away from each other, of the plurality of positioning center plates 28 are also provided with chamfers, when drilling is performed, the position of a first screw hole needs to be controlled to be positioned on the same vertical plane with the axes of the positioning center plates 28 and the transposition ring 3, so that the precision of subsequent screw hole processing is guaranteed, if four screw holes need to be processed in total, three positioning center plates 28 (named as B, C, D respectively) are spaced between two positioning center plates 28 (named as A and E respectively) representing the positions of two screw holes, therefore, after the processing of one screw hole is completed, the transposition ring 3 drives a flange to rotate, and before E reaches the bottom of a drill bit, D just leaves the bottom of the drill bit, the first blocking plate 32 is driven by a first electric push rod 31 to be inserted between D, E for blocking E in advance; in particular to a method for manufacturing the composite material, through setting up first blocking plate 32 for after first screw hole processing is accomplished, transposition ring 3 drive flange axial rotation, and in the rotatory in-process, positioning ring frame 15 can drive each location center plate 28 synchronous revolution, until the location center plate 28 that represents next screw hole position arrives, first blocking electric putter 31 drive first blocking plate 32 moves to drill bit bottom one side, plays the effect of blocking in advance, prevents transposition ring 3 drive flange excessive rotation, leads to the dislocation of screw hole's position.
As shown in fig. 8, a second blocking electric push rod 35 is fixedly arranged at the top of the supporting plate 30, a second blocking plate 36 is fixedly arranged at the telescopic end of the second blocking electric push rod 35, and the first blocking plate 32 and the second blocking plate 36 are symmetrically distributed; specifically, by arranging the second blocking plate 36, after the second screw hole rotates in place, the second blocking electric push rod 35 drives the second blocking plate 36 to move to the other side of the positioning center plate 28 and contact with the positioning center plate 28, so that the first blocking plate 32 and the second blocking plate 36 respectively play a limiting role on the positioning center plate 28 from two sides, and the transposition ring 3 is prevented from driving the flange to excessively rotate or being influenced by vibration during processing to enable the transposition ring 3 to be reversed, thereby influencing the processing precision.
As shown in fig. 8, a telescopic spring seat 33 is fixedly installed on one side of the first blocking plate 32 close to the second blocking plate 36, a pressure measuring plate 34 is fixedly installed on one side of the telescopic spring seat 33 close to the second blocking plate 36, and a pressure sensor is arranged in the telescopic spring seat 33; specifically, by setting the pressure sensor, if the flange does not excessively rotate, the positioning center plate 28 representing the position of the screw hole just contacts with the pressure measuring plate 34, and excessive pressure is not applied to the telescopic spring seat 33, so that the pressure signal of the pressure sensor inside the telescopic spring seat 33 is kept within a preset standard range, if the position of the screw hole is misplaced, the positioning center plate 28 presses the pressure measuring plate 34 or does not contact with the pressure measuring plate 34 at all, so that the pressure signal is excessively large or excessively small, and therefore, the return orientation of the transposition ring 3 can be controlled according to the change of the pressure signal, and the machining precision of the screw hole is ensured.
As shown in fig. 4, a lifting electric push rod 37 is fixedly arranged on one side of the lifting sliding seat 6, and the top end of the lifting electric push rod 37 is fixedly arranged on one side of the lifting sliding seat 7; specifically, through setting up lift electric push rod 37 for lift electric push rod 37 can drive lift balladeur train 7 at the inside vertical slip of lift slide 6, thereby highly control outer grip block 8, makes the grip position of outer grip block 8 change according to the model of flange.
To sum up: before processing: each inner clamping electric push rod 9 can respectively drive the inner clamping frame 10 to move, so that the position of each lower support rod 11 can be adjusted according to the size of a flange plate of an end face screw hole to be processed, the lower support rods 11 are positioned in an annular area between the flange hole and the outer side wall of the flange plate, the positions of the end face screw holes to be processed can be avoided, the inner clamping electric push rods 9 can drive the inner clamping frame 10 to move, the inner diameter of a circular area surrounded by a plurality of flange hole inner supporting rods 27 is smaller than the inner diameter of the flange hole, then the flange hole on the flange of the end face screw hole to be processed is sleeved on a linkage slide hole 16, the flange is placed on the plurality of lower support rods 11, the inner supporting rods 27 of each flange hole can be positioned in the interior of the flange hole, then the electric drive slide seat 4 drives each outer clamping plate 8 to push the flange to move by the lifting slide frame 7, the flange is clamped by the outer clamping plate 8 to be positioned, the inner clamping electric push rods 9 can drive the inner supporting rods 27 of the flange hole to contact the inner walls of the flange hole, the inner clamping frame is clamped and fixed from inside, the driving base 2 drives the transposition ring 3 to rotate, and then the two end plates are driven by the electric drive the slide rods to move to the top of the preset positioning support frame 14 through the rotary support frame and the preset positioning plate and the positioning plate 13 to move to the top of the drilling bit 14 through the preset positioning support frame and the position guide plate 13;
during processing, the method comprises the following steps: the drill descends to drill, after the first screw hole is machined, the positioning electric push rod 18 drives the two guide arc plates 24 to move to the position right above the screw hole, then the driving motor 20 drives the two guide arc plates 24 to be close to each other to the minimum distance through the double-head screw rod 21 and the driving screw sleeve 22, the elevator table 1 drives the flange to lift until the bottoms of the two guide arc plates 24 extend into the screw hole, finally the driving motor 20 drives the guide arc plates 24 to be far away from each other and respectively contact with the inner wall of the screw hole, so that the guide arc plates 24 clamp the screw hole from the inside to prevent the flange from rotating axially, then the transposition ring 3 can drive the flange to rotate continuously, in the rotating process, the positioning ring frame 15 drives each positioning center plate 28 to rotate synchronously until the positioning center plate 28 representing the position of the next screw hole arrives, the first blocking electric push rod 31 drives the first blocking plate 32 to move to one side of the bottom of the drill bit to play a role of blocking in advance, the transposition ring 3 is prevented from driving the flange to excessively rotate, after the second screw hole is rotated in place, the second blocking electric push rod 35 drives the second blocking plate 36 to move to the other side of the positioning center plate 28 and is contacted with the positioning center plate 28, the first blocking plate 32 and the second blocking plate 36 respectively play a limiting role on the positioning center plate 28 from two sides, the transposition ring 3 is prevented from driving the flange to excessively rotate or being influenced by vibration during machining to enable the transposition ring 3 to reversely rotate, the machining precision of the screw hole is guaranteed according to the change of a pressure signal of a pressure sensor in the telescopic spring seat 33, and then the next screw hole is continuously machined until machining is completed;
After processing: the outer clamping plate 8, the support rod 27 in the flange hole, the guide arc plate 24 and the like are driven to reset, limit on the flange is relieved, and the flange is replaced for next round of processing.
The foregoing has shown and described the basic principles, principal features and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made therein without departing from the spirit and scope of the invention, which is defined by the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (4)
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| CN202411046659.0A CN118559450B (en) | 2024-08-01 | 2024-08-01 | Exhaust flange processing location frock |
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| CN202411046659.0A CN118559450B (en) | 2024-08-01 | 2024-08-01 | Exhaust flange processing location frock |
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| CN118559450B true CN118559450B (en) | 2024-11-26 |
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| CN119489309B (en) * | 2024-12-10 | 2025-08-01 | 盐城市春秋精密机械有限公司 | Clamping mechanism for welding end flange of automobile exhaust pipe and application method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103934486A (en) * | 2014-04-28 | 2014-07-23 | 成都陵川特种工业有限责任公司 | Positioning and drilling device for exhaust manifold flange |
| CN117300205A (en) * | 2023-11-28 | 2023-12-29 | 山西省定襄县龙门锻压有限公司 | A flow meter flange hole processing device and method of use |
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| US20210060717A1 (en) * | 2019-09-03 | 2021-03-04 | Dongguan University Of Technology | Riveting and grinding assembly for ther nozzle of a screw shaft valve |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103934486A (en) * | 2014-04-28 | 2014-07-23 | 成都陵川特种工业有限责任公司 | Positioning and drilling device for exhaust manifold flange |
| CN117300205A (en) * | 2023-11-28 | 2023-12-29 | 山西省定襄县龙门锻压有限公司 | A flow meter flange hole processing device and method of use |
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