CN107297556B - Circular tube intersecting line movement mechanism and circular tube intersecting line cutting machine - Google Patents
Circular tube intersecting line movement mechanism and circular tube intersecting line cutting machine Download PDFInfo
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- CN107297556B CN107297556B CN201710629533.XA CN201710629533A CN107297556B CN 107297556 B CN107297556 B CN 107297556B CN 201710629533 A CN201710629533 A CN 201710629533A CN 107297556 B CN107297556 B CN 107297556B
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- disc
- rod
- circular tube
- intersecting line
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- 230000007246 mechanism Effects 0.000 title claims abstract description 32
- 230000000149 penetrating effect Effects 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 230000000007 visual effect Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 7
- 230000007547 defect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K7/00—Cutting, scarfing, or desurfacing by applying flames
- B23K7/005—Machines, apparatus, or equipment specially adapted for cutting curved workpieces, e.g. tubes
- B23K7/006—Machines, apparatus, or equipment specially adapted for cutting curved workpieces, e.g. tubes for tubes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B5/00—Turning-machines or devices specially adapted for particular work; Accessories specially adapted therefor
- B23B5/08—Turning-machines or devices specially adapted for particular work; Accessories specially adapted therefor for turning axles, bars, rods, tubes, rolls, i.e. shaft-turning lathes, roll lathes; Centreless turning
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K10/00—Welding or cutting by means of a plasma
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K7/00—Cutting, scarfing, or desurfacing by applying flames
- B23K7/10—Auxiliary devices, e.g. for guiding or supporting the torch
- B23K7/105—Auxiliary devices, e.g. for guiding or supporting the torch specially adapted for particular geometric forms
Abstract
The invention discloses a circular tube intersecting line movement mechanism which comprises a first piston disc, a first central shaft lever, a first rotating shaft, a second piston disc, a second central shaft lever and a second rotating shaft. The circular tube intersecting line movement mechanism provides a realization mode for converting between rotation and linear movement of the piston and cycloid movement. The invention also discloses a circular tube intersecting line cutting machine utilizing the circular tube intersecting line movement mechanism, which is simple, convenient and visual to operate, can be large-sized, has low manufacturing cost and can realize cutting by a turning tool.
Description
Technical Field
The invention relates to a circular tube intersecting line movement mechanism and a circular tube intersecting line cutting machine.
Background
The intersecting line cutting is a common process means for connecting a main pipe and a branch pipe of a circular pipe, and is mainly referred to as cutting of a branch pipe notch. In the prior art, the devices related to intersecting line cutting can be generally divided into two types, one type is a numerical control cutting machine, and the other type is a mechanical cutting machine. The numerical control cutting machine has the defects of high cost, high technical requirement and inapplicability to cutting large circular pipes. The mechanical cutting machine has the characteristic of low cost, but the existing mechanical cutting machine has the defects of complex structure and high equipment cost.
Disclosure of Invention
A first object of the present invention is to provide a circular tube intersecting line movement mechanism.
The second object of the present invention is to provide a circular tube intersecting line cutting machine using the circular tube intersecting line moving mechanism.
To achieve the first object, the present invention adopts the following:
a circular tube intersecting line movement mechanism comprises a first piston disc, a first central shaft lever, a first rotating shaft, a second piston disc, a second central shaft lever and a second rotating shaft;
the first piston disc is provided with a first central shaft rod along the axis of the first piston disc, a first rotating shaft capable of rotating on a vertical plane is further arranged on the first piston disc along the horizontal direction, and the first piston disc can rotate around the first central shaft rod and can move left and right along the first central shaft rod; the distance between the axis of the first central shaft lever and the axis of the first rotating shaft is R1;
the second piston disc is sleeved on the second central shaft rod and can slide on the second central shaft rod; the second piston disc is also provided with a second rotating shaft which can rotate on a horizontal plane along the vertical direction of the second piston disc; the distance between the axis of the second central shaft lever and the axis of the second rotating shaft is R2;
wherein the second rotating shaft and the first rotating shaft are intersected and fixed, and R2 is more than or equal to R1.
To achieve the second object, the present invention adopts the following:
a circular tube intersecting line cutting machine utilizing the circular tube intersecting line movement mechanism comprises: the device comprises a main chuck, a first auxiliary disc, a connecting rod, a first rotating disc, a second rotating disc, a bracket, a first guide sleeve, a third shaft lever, at least two rail levers, a cutter holder, a cutting knife, a hydraulic cylinder, a rotating joint, a third rotating shaft, at least one shaft seat, a fourth shaft lever, a swing arm, a second rotating shaft seat and a fourth rotating shaft;
the connecting rod is arranged between the main chuck and the first auxiliary disc and is used for fixedly connecting the main chuck and the first auxiliary disc into a whole;
the main chuck is provided with a hollow structure, and a round tube to be treated can be fixed in the hollow structure;
the main chuck is also provided with a protruding part, the first rotary disc is arranged on the protruding part of the main chuck, and the first rotary disc can rotate around the protruding part in a vertical plane;
the first auxiliary disc is of a hollow structure, the inner surface of the first auxiliary disc is provided with a second rotary disc, and the second rotary disc can rotate on a vertical plane on the inner surface of the first auxiliary disc;
the support is of a hollow round structure, first guide sleeves perpendicular to the support are symmetrically arranged on one side facing the main chuck, and a third shaft rod is arranged in each first guide sleeve in a penetrating mode; one end of the third shaft lever is fixedly connected to the second rotary disc, and the other end of the third shaft lever penetrates through the first rotary disc;
at least two parallel rail rods are arranged in the hollow structure of the bracket; a cutter holder is arranged on one side of the rail rod, which faces the main chuck, and a rotary joint is arranged on one side of the rail rod, which faces the first auxiliary chuck, and the cutter holder is fixedly connected with the rotary joint; the cutter is arranged in the cutter holder, a third rotating shaft capable of rotating in the vertical direction is arranged in the rotating joint, and the vertex of the cutter and the axis of the third rotating shaft are always kept in a straight line; the tool apron and the rotary joint can slide along the rail rod; one end of the hydraulic cylinder is connected to the tool apron, and the other end of the hydraulic cylinder is connected to the bracket or the first guide sleeve;
a fourth shaft lever is arranged on the shaft seat in a penetrating way; a fourth shaft lever is arranged on one side of the swing arm, and a second rotating shaft seat is arranged on the other side of the swing arm; a fourth rotating shaft capable of rotating in the vertical direction is arranged in the second rotating shaft seat; and the tail ends of the fourth rotating shaft and the third rotating shaft are connected in an intersecting manner.
Further, the cutting machine further includes: the second auxiliary disc, the second guide sleeve and the third guide sleeve;
the second auxiliary disc is of a hollow structure, a first rotary disc is arranged on the inner surface of the second auxiliary disc, and the first rotary disc can rotate on a vertical plane on the inner surface of the second auxiliary disc; the two ends of the second auxiliary disc are respectively provided with a second guide sleeve sleeved on the connecting rod;
two third guide sleeves are symmetrically arranged on the first rotary disc; one end of the third shaft rod is fixedly connected to the second rotary disc, and the other end of the third shaft rod penetrates through the third guide sleeve.
Further, the circular tube intersecting line cutting machine comprises two shaft seats, and is a double shaft seat mechanism; the biaxial mount mechanism includes: the device comprises two shaft seats, a bottom plate, a connecting part and a fixing piece; the two shaft seats and the connecting part form a U-shaped structure; the shaft seat is of a folded structure and comprises a first folding part fixedly connected with the connecting part and a second folding part perpendicular to the first folding part, and a hole for the fourth shaft rod to pass through is formed in the second folding part; the base plate is provided with a semicircular part taking the connecting part as the diameter, and the connecting part drives the two shaft seats to horizontally rotate in the semicircular part.
Further, the semicircular part is also provided with scales.
Further, the circular tube intersecting line cutting machine also comprises an external frame mechanism; the external frame mechanism comprises an external frame, a circle center swing rod, a connecting rod, a cutting head and an external frame shaft seat; an external frame is connected to the other surface of the swing arm opposite to the fourth rotating shaft; the external frame is connected with the swing arm in an intersecting way; the circle center swing rod is connected with the external connection part in a crossing way and is divided into an upper swing rod and a lower swing rod through the external connection part; the upper swing rod is connected with at least two connecting rods parallel to the external connection part in an intersecting way, the other ends of the connecting rods are provided with cutting heads parallel to the circle center swing rod, the top points of the cutting heads are contacted with the round pipe, and the straight line extending lines passing through the cutting heads pass through the axle center point of the round pipe; the tail end of the lower swing rod is a U-shaped fork opening and is connected to the shaft seat for the external frame; the length of a line segment of an intersection point of a straight line which is led out from the intersection point of the external connection frame and the swing arm and is parallel to the circle center swing rod and the fourth shaft lever is equal to the length of a line segment which is led out from the intersection point of the circle center swing rod and the external connection part and is led out from the intersection point of the lower swing rod and the shaft seat for the external connection frame.
Further, the circular tube intersecting line cutting machine also comprises an external frame mechanism; the external frame mechanism comprises an external frame, a circle center swing rod, a connecting rod and a cutting head; an external frame is coaxially connected to the fourth rotating shaft; the circle center swing rod is vertically and crosswise connected with the external connection part; at least two connecting rods parallel to the external connection part are connected with the circle center swing rod in an intersecting way, and a cutting head parallel to the circle center swing rod is arranged at the other end of each connecting rod; the vertex of the cutting head is vertically contacted with the round tube, and the straight line extending line passing through the cutting head passes through the axis point of the round tube.
Further, the second rotating disc is provided with a gear or a pulley on its outer side.
Further, the connecting rod is provided with threads, and the threads are fixed with the main chuck and the first auxiliary disk through nuts respectively, so that the distance between the main chuck and the first auxiliary disk can be adjusted according to the requirement.
Further, an adjusting groove is further formed in the swing arm.
The invention has the following advantages:
1. the circular tube intersecting line movement mechanism provides an implementation mode for converting between rotation and linear movement of a piston and cycloid movement.
2. The circular tube intersecting line cutting machine is simple, convenient and visual to operate, large in size, low in manufacturing cost and capable of achieving turning tool cutting, flame cutting and plasma cutting.
Drawings
The following describes the embodiments of the present invention in further detail with reference to the drawings.
Fig. 1 is a schematic diagram of a circular tube intersecting line movement mechanism.
Fig. 2 is a schematic structural diagram of the circular tube intersecting line movement mechanism of embodiment 1.
Fig. 3 is a schematic perspective view of a circular tube intersecting line cutter according to embodiment 2.
Fig. 4 is a schematic structural view of the bracket portion.
Fig. 5 is a schematic side view of the circular tube intersecting line cutter of embodiment 3.
FIG. 6 is a schematic diagram of a double axle seat.
Fig. 7 is a schematic diagram of the use of the modified external cutting frame of example 5.
Detailed Description
In order to more clearly illustrate the present invention, the present invention will be further described with reference to preferred embodiments. It is to be understood by persons skilled in the art that the following detailed description is illustrative and not restrictive, and that this invention is not limited to the details given herein.
Fig. 1 is a schematic diagram of a circular tube intersecting line movement mechanism according to the present invention. In the figure, the diameter of the first circular tube is R1, the diameter of the second circular tube is R2, R2 is more than or equal to R1, and the intersecting line of the two is the common point of the two. The first circular tube can be regarded as a track generated by linear motion taking the central shaft of the first circular tube as a circle center, taking R1 as a radius, rotating perpendicular to the central shaft and taking the central shaft as a track, namely an excircle track of the first circular tube. Similarly, the second tube is identical, so that the intersecting lines of the two are common points, and the points form the intersecting lines.
Example 1
Fig. 2 is a schematic structural view of the circular tube intersecting line movement mechanism of the invention. The circular tube intersecting line movement mechanism comprises a first piston disc 1, a first central shaft lever 2, a first rotating shaft 3, a second piston disc 4, a second central shaft lever 5 and a second rotating shaft 6. The first piston disc 1 is provided with a first central shaft 2 along its axis, and a first rotation shaft 3 (the first rotation shaft 3 is rotatable in a vertical plane) is further provided on the first piston disc 1 in a horizontal direction. The first piston disc 1 is rotatable about the first central shaft 2 and is movable left and right along the first central shaft 2. The distance between the axis of the first center shaft 2 and the axis of the first rotating shaft 3 is R1. The second piston disc 4 is sleeved on the second central shaft 5 and can slide on the second central shaft 5. The second piston disc 4 is further provided with a second rotation shaft 6 in its vertical direction (the second rotation shaft 6 is rotatable in a horizontal plane). The second rotating shaft 6 is connected with the first rotating shaft 3 in an intersecting way. The distance between the axis of the second central shaft 5 and the axis of the second rotating shaft 6 is R2. And R2 is more than or equal to R1. The first piston disc 1 is rotated to drive the second piston disc 4 to reciprocate up and down along the second central shaft rod 5, meanwhile, the first piston disc 1 is also driven to reciprocate left and right along the first central shaft rod 2 by the second piston disc 4, the first piston disc 1 rotates to a certain point to correspond to the relative position of the second piston disc 4 one by one, thus, the intersecting point of the second rotating shaft 6 and the first rotating shaft 3 forms the common point of intersecting lines, the first piston disc 1 rotates for one circle, and the common points form the whole intersecting lines of the R1 circular tube and the R2 circular tube.
Brief description of the principles: the circular R1 tube can be regarded as an outer circular track of the circular R1 tube, which is generated by taking each point on the axis of the first central shaft lever 2 as a circular point, taking R1 as a radius, rotating perpendicular to the first central shaft lever 2 and taking the first central shaft lever 2 as a rail to do linear motion. Similarly, the R2 circular tube can be regarded as an outer circular track of the R2 circular tube, which is generated by taking each point on the axis of the second central shaft 5 as a circular point, taking R2 as a radius, and taking the second central shaft 5 as a track to perform linear motion. Therefore, the intersecting line of the R1 circular tube and the R2 circular tube is the common point of the R1 circular tube and the R2 circular tube, and the points form the intersecting line. The intersecting line cutting between different round tubes is realized by changing the relative positions and angles of R1 and R2 and R1 and R2.
Example 2
As shown in fig. 3, a schematic structural view of a circular tube intersecting line cutter using the circular tube intersecting line movement mechanism of embodiment 1 is shown. The circular tube intersecting line cutting machine comprises: the main chuck 21, the first auxiliary disc 22, the two connecting rods 23, the operating rod 24, the first rotating disc 261, the second rotating disc 262, the bracket 27, the first guide sleeve 28, the third shaft lever 29, the two rail levers 41, the tool holder 42, the cutter 30, the hydraulic cylinder 40, the rotary joint 38, the third rotating shaft 36, the shaft seat 31, the fourth shaft lever 32, the swing arm 33, the second rotating shaft seat 44, and the fourth rotating shaft 37. The cutter is integrally fixed to a floor bracket (not shown).
Two connecting rods 23 are provided between the main chuck 21 and the first auxiliary plate 22 for fixedly connecting the main chuck 21 and the first auxiliary plate 22 as one body. The connecting rod 23 is provided with threads at the positions close to the main chuck 21 and the first auxiliary disc 22, the connecting rod 23, the main chuck 21 and the first auxiliary disc 22 are respectively fixed through nuts, and the distance between the main chuck 21 and the first auxiliary disc 22 can be adjusted according to the requirement.
The main chuck 21 has a hollow structure, and a round tube 25 to be processed can be fixed in the hollow structure, and the round tube 25 can be fixed by the operating rod 24. The specific internal structure of the main chuck 21 and its cooperation with the operating rod 24 can be implemented by any structure capable of fixing a round tube in the prior art, and will not be described herein.
The main chuck 21 also has a protrusion, the first rotary disk 261 is disposed on the protrusion of the main chuck 21, and the first rotary disk 261 is rotatable around the protrusion in a vertical plane.
The first auxiliary plate 22 has a hollow structure, and an inner surface thereof is provided with a second rotating disk 262, and the second rotating disk 262 is rotatable in a vertical plane on the inner surface of the first auxiliary plate 22. The second rotating disc 262 is provided with a gear or pulley on its outer side. The first rotating disk 261 and the second rotating disk 262 have the same structure, the outer diameters are the same, and the inner diameters of the intermediate circles are the same.
The support 27 has a hollow circular structure, and two first guide sleeves 28 perpendicular to the support 27 are symmetrically arranged on the side facing the main chuck 21, and a third shaft lever 29 is arranged in each first guide sleeve 28 in a penetrating manner. One end of the third shaft 29 is fixedly connected to the second rotating disc 262, and the other end is penetrated through the first rotating disc 261. The first rotary disk 261 is reciprocally movable on the third shaft 29, and the first guide sleeve 28 provides an axial holding force.
As shown in fig. 3, two parallel rail bars 41 are provided in the hollow structure of the bracket 27. The two rail bars 41 are provided with a cutter holder 42 on the side facing the main chuck 21, and a rotary joint 38 on the side facing the first auxiliary plate 22, the cutter holder 42 being fixedly connected to the rotary joint 38. The cutter 30 is arranged in the cutter holder 42, the third rotating shaft 36 capable of rotating in the vertical direction is arranged in the rotating joint 38, and the vertex of the cutter 30 and the axle center of the third rotating shaft 36 are always kept in a straight line; the tool holder 42 and the swivel joint 38 are slidable along two rail bars 41. One end of the hydraulic cylinder 40 is connected to the tool holder 42 and the other end is connected to the support 27 or the first guide sleeve 28. The head is adjusted into the circular tube 25 by the hydraulic cylinder 40, and then the distance from the head apex of the cutter 30 to the axis of the circular tube 25 can be changed by the hydraulic cylinder 40.
In embodiment 2, an axle seat 31 is included. The shaft seat 31 is penetrated with a fourth shaft lever 32. The swing arm 33 is provided with the fourth shaft 32 on one side and the second rotating shaft seat 44 on the other side. The second rotating shaft seat 44 is provided therein with a fourth rotating shaft 37 rotatable in the vertical direction. The ends of the fourth rotating shaft 37 and the third rotating shaft 36 are connected in an intersecting manner. Preferably, the swing arm 33 is further provided with an adjusting slot 34, so that the position of the second rotating shaft seat 44 on the swing arm 33, that is, the position of the fourth rotating shaft 37, can be adjusted. An adjusting slot (as shown in fig. 5) in the up-down direction may also be provided on the shaft seat 31 to facilitate adjusting the horizontal position of the swing arm 33. By adjusting the angle of the swing arm (i.e., the swing angle), the adjustment of the inclination of the cutting head of the cutting blade 30 is also achieved. If the cutting tool is in the form of a turning tool, the angle of the cutting head is not required to be changed, and the radius of the turning tool is only required to be cut up with the minimum radius of a circular pipe, so that the arc angle of the cutting appearance is formed by layer-by-layer cutting.
The distance between the axis of the circular tube 25 (i.e., the axes of the first rotating disk 261 and the second rotating disk 262) and the vertex of the cutter 30 (i.e., the axis of the third rotating shaft 36) is R1, and the distance between the axis of the fourth shaft 32 and the axis of the fourth rotating shaft 37 is R2. Thus, when the first rotary disk 261 is rotated, the vertex of the cutter 30 is driven to cut the intersecting line of the round tube.
Example 3
As shown in fig. 5, a schematic structural view of a preferred embodiment of the circular tube intersecting line cutter using the circular tube intersecting line movement mechanism of example 1 is shown.
Unlike some of the components of embodiment 2, in this embodiment, the circular tube intersecting line cutter further includes: a second auxiliary disc 45, a second guide sleeve 46 and a third guide sleeve 47.
Only the differences will be described in detail herein. The second auxiliary disk 45 has a hollow structure, and an inner surface thereof is provided with a first rotating disk 261, and the first rotating disk 261 is rotatable in a vertical plane at the inner surface of the second auxiliary disk 45. The second auxiliary disk 45 is provided at both ends thereof with second guide sleeves 46 respectively fitted over the connection rods 23. Thus, as compared with embodiment 2, the second auxiliary disk 45 can be moved left and right in the horizontal direction with the first rotary disk 261, as required.
Two third guide sleeves 47 are symmetrically provided on the first rotary disk 261. One end of the third shaft 29 is fixedly connected to the second rotating disc 262, and the other end is penetrated by the third guide sleeve 47.
Example 4
The cutters of embodiments 2 and 3 are preferably provided with double shaft seats. As shown in fig. 6, a schematic structural diagram of the double shaft seat is shown. The biax seat mechanism includes: two axle seats 31, a fourth axle 32, a bottom plate 53, a connecting portion 54, a fixing member 55. The two shaft seats 31 and the connecting portion 54 form a U-like structure. The shaft seat 31 has a folded structure, and includes a first folded portion fixedly connected to the connecting portion 54 and a second folded portion perpendicular to the first folded portion, where a hole is formed in the second folded portion for the fourth shaft lever 32 to pass through. The bottom plate 53 is provided with a semicircular part with the connecting part 54 as a diameter, and the connecting part 54 drives the two shaft seats 31 to horizontally rotate in the semicircular part. The semi-circular portion is also provided with graduations 56 to facilitate reading. After being rotated to the desired angle, it is secured using fasteners 55. As a preferred embodiment, when using a double-shaft seat, the cutting machine is more stable as a whole, and the angle between the fourth shaft 32 and the axes of the first rotating disc 261 and the second rotating disc 262 (corresponding to the schematic diagram of fig. 2, that is, the angles between the second central shaft 5 and the first central shaft 2) can be adjusted.
Example 5
The cutting machine of example 2 or example 4 is based on the principle of using the modified external cutting frame and double shaft seat as shown in fig. 7. The circular tube intersecting line cutting machine also comprises an external frame mechanism, which comprises an external frame 50, a circle center swing rod 51, a connecting rod 54, a cutting head 49 and an external frame shaft seat 57.
An external frame 50 is connected to the other surface of the swing arm 33 opposite to the fourth rotation shaft 37, and at this time, the external frame 50 does not rotate with the fourth rotation shaft 37, but performs swinging and translational movements together with the swing arm 33. The external frame 50 is connected to the swing arm 33. The circle center swing rod 51 is connected with the external connection part 50 in an intersecting way and is divided into an upper swing rod and a lower swing rod through the external connection part 50. The upper swing rod is connected with at least two connecting rods 54 parallel to the external connection part 50 in an intersecting way, the other ends of the connecting rods 54 are provided with cutting heads 49 parallel to the circle center swing rod 51, the top points of the cutting heads 49 are contacted with the round tubes 25, and the straight line extending lines passing through the cutting heads 49 pass through the point c of the axle center of the round tubes 25. The tail end of the lower swing rod is a U-shaped fork opening and is connected to an external frame shaft seat 57.
The apex of the cutting head 49 is point C and the length of Cc is R1. The intersection point of the external connection frame 50 and the swing arm 33 is point A, the intersection point of the straight line which is led out from the point A and is parallel to the center swing rod 51 and the fourth shaft lever 32 is virtual axis point a, and the length of Aa is R1. The intersection point of the center swing rod 53 and the external connection part 50 is the point B, the intersection point of the lower swing rod and the external connection frame shaft seat 57 is the point B of the shaft center, and the length of Bb is R1. That is, the length of AB is equal to the distance from the point a of the axis to the point a of the axis, and the a axis is parallel to the b axis and the c axis. The track of the point A is the same as the track of the point B and the track of the point C. That is, the B-point trajectory is only the distance that translates the a-point trajectory by AB, and the C-point trajectory is only the distance that translates the a-point trajectory by AC. The included angle between the center swing rod 51 and the b axis is changed from 0 to 180 degrees, so that when the round tube 25 is cut, the lower vertex is cut from the upper vertex, and the round tube is rotated 180 degrees and then returns to the upper vertex from the lower vertex.
In another embodiment, the external frame 50 may be directly and fixedly connected to the fourth rotating shaft 37, that is, the external frame 50 is coaxial with the fourth rotating shaft 37, and the cutting head 49 is always perpendicular to the outer surface of the circular tube 25.
The three-dimensional structure of fig. 3 is illustrated, at this time, when the double shaft seat is installed, the second folded portion of the shaft seat 31 faces the direction of the first auxiliary disc 22, so that the second folded portion is not blocked by the shaft seat 31 when the external connection frame 50 rotates.
It should be understood that the foregoing examples of the present invention are provided merely for clearly illustrating the present invention and are not intended to limit the embodiments of the present invention, and that various other changes and modifications may be made therein by one skilled in the art without departing from the spirit and scope of the present invention as defined by the appended claims.
Claims (7)
1. A circular tube intersecting line cutting machine, comprising: the device comprises a main chuck, a first auxiliary disc, a connecting rod, a first rotating disc, a second rotating disc, a bracket, a first guide sleeve, a third shaft lever, at least two rail levers, a cutter holder, a cutting knife, a hydraulic cylinder, a rotating joint, a third rotating shaft, at least one shaft seat, a fourth shaft lever, a swing arm, a second rotating shaft seat and a fourth rotating shaft;
the connecting rod is arranged between the main chuck and the first auxiliary disc and is used for fixedly connecting the main chuck and the first auxiliary disc into a whole;
the main chuck is provided with a hollow structure, and a round tube to be treated can be fixed in the hollow structure;
the main chuck is also provided with a protruding part, the first rotary disc is arranged on the protruding part of the main chuck, and the first rotary disc can rotate around the protruding part in a vertical plane;
the first auxiliary disc is of a hollow structure, the inner surface of the first auxiliary disc is provided with a second rotary disc, and the second rotary disc can rotate on a vertical plane on the inner surface of the first auxiliary disc;
the support is of a hollow round structure, first guide sleeves perpendicular to the support are symmetrically arranged on one side facing the main chuck, and a third shaft rod is arranged in each first guide sleeve in a penetrating mode; one end of the third shaft lever is fixedly connected to the second rotary disc, and the other end of the third shaft lever penetrates through the first rotary disc;
at least two rail rods are arranged in the hollow structure of the bracket; a cutter holder is arranged on one side of the rail rod, which faces the main chuck, and a rotary joint is arranged on one side of the rail rod, which faces the first auxiliary chuck, and the cutter holder is fixedly connected with the rotary joint; the cutter is arranged in the cutter holder, a third rotating shaft capable of rotating in the vertical direction is arranged in the rotating joint, and the vertex of the cutter and the axis of the third rotating shaft are always kept in a straight line; the tool apron and the rotary joint can slide along the rail rod; one end of the hydraulic cylinder is connected to the tool apron, and the other end of the hydraulic cylinder is connected to the bracket or the first guide sleeve;
a fourth shaft lever is arranged on the shaft seat in a penetrating way; a fourth shaft lever is arranged on one side of the swing arm, and a second rotating shaft seat is arranged on the other side of the swing arm; a fourth rotating shaft capable of rotating in the vertical direction is arranged in the second rotating shaft seat; the tail ends of the fourth rotating shaft and the third rotating shaft are connected in an intersecting manner;
the cutter further includes: the second auxiliary disc, the second guide sleeve and the third guide sleeve;
the second auxiliary disc is of a hollow structure, a first rotary disc is arranged on the inner surface of the second auxiliary disc, and the first rotary disc can rotate on a vertical plane on the inner surface of the second auxiliary disc; the two ends of the second auxiliary disc are respectively provided with a second guide sleeve sleeved on the connecting rod;
two third guide sleeves are symmetrically arranged on the first rotary disc; one end of the third shaft rod is fixedly connected to the second rotary disc, and the other end of the third shaft rod penetrates through the third guide sleeve.
2. The circular tube intersecting line cutting machine as defined in claim 1, wherein the circular tube intersecting line cutting machine comprises two shaft bases which are double shaft base mechanisms; the biaxial mount mechanism includes: the device comprises two shaft seats, a bottom plate, a connecting part and a fixing piece; the two shaft seats and the connecting part form a U-shaped structure; the shaft seat is of a folded structure and comprises a first folding part fixedly connected with the connecting part and a second folding part perpendicular to the first folding part, and a hole for the fourth shaft rod to pass through is formed in the second folding part; the base plate is provided with a semicircular part taking the connecting part as the diameter, and the connecting part drives the two shaft seats to horizontally rotate in the semicircular part.
3. The circular tube intersecting line cutting machine as defined in claim 2, wherein the semicircular portion is further provided with graduations.
4. The tubular intersecting line cutter of claim 1, wherein the tubular intersecting line cutter further comprises an external frame mechanism; the external frame mechanism comprises an external frame, a circle center swing rod, a connecting rod, a cutting head and an external frame shaft seat; an external frame is connected to the other surface of the swing arm opposite to the fourth rotating shaft; the external frame is connected with the swing arm in an intersecting way; the circle center swing rod is connected with the external connection part in a crossing way and is divided into an upper swing rod and a lower swing rod through the external connection part; the upper swing rod is connected with at least two connecting rods parallel to the external connection part in an intersecting way, the other ends of the connecting rods are provided with cutting heads parallel to the circle center swing rod, the top points of the cutting heads are contacted with the round pipe, and the straight line extending lines passing through the cutting heads pass through the axle center point of the round pipe; the tail end of the lower swing rod is a U-shaped fork opening and is connected to the shaft seat for the external frame; the length of a line segment of an intersection point of a straight line which is led out from the intersection point of the external connection frame and the swing arm and is parallel to the circle center swing rod and the fourth shaft lever is equal to the length of a line segment which is led out from the intersection point of the circle center swing rod and the external connection part and is led out from the intersection point of the lower swing rod and the shaft seat for the external connection frame.
5. The tubular intersecting line cutter of claim 1, wherein the tubular intersecting line cutter further comprises an external frame mechanism; the external frame mechanism comprises an external frame, a circle center swing rod, a connecting rod and a cutting head; an external frame is coaxially connected to the fourth rotating shaft; the circle center swing rod is vertically and crosswise connected with the external connection part; at least two connecting rods parallel to the external connection part are connected with the circle center swing rod in an intersecting way, and a cutting head parallel to the circle center swing rod is arranged at the other end of each connecting rod; the vertex of the cutting head is vertically contacted with the round tube, and the straight line extending line passing through the cutting head passes through the axis point of the round tube.
6. The circular tube intersecting line cutting machine as claimed in claim 1, wherein the connecting rod is provided with threads, and is fixed with the main chuck and the first auxiliary disc through nuts, respectively, and the distance between the main chuck and the first auxiliary disc can be adjusted according to the requirement.
7. The circular tube intersecting line cutting machine as defined in claim 1, wherein the swing arm is further provided with an adjusting groove.
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| CN201710629533.XA CN107297556B (en) | 2017-07-28 | 2017-07-28 | Circular tube intersecting line movement mechanism and circular tube intersecting line cutting machine |
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| CN201710629533.XA CN107297556B (en) | 2017-07-28 | 2017-07-28 | Circular tube intersecting line movement mechanism and circular tube intersecting line cutting machine |
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| CN107297556B true CN107297556B (en) | 2024-04-12 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108746956A (en) * | 2018-05-31 | 2018-11-06 | 柳德华 | A kind of intersection plasma flame cutting machine |
| CN110091062B (en) * | 2019-06-10 | 2021-06-08 | 武夷学院 | Laser intersecting line cutting machine free of cam replacement |
| CN112518188B (en) * | 2020-12-09 | 2022-06-14 | 南昌大学 | Novel pipeline grafting looks through line welding robot device |
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