Circle cutting tool used in metal cutting

Abstract

The invention discloses a circle cutting tool used in metal cutting, relates to the technical field of circle cutting assistive devices, and provides the following scheme that the circle cutting tool comprises a scale mechanism, the left end of the scale mechanism is fixedly connected with a cutting torch gun head fixing piece, and two clamping pieces which are arranged in a front-back mirror symmetry mode are arranged in an inner cavity of the cutting torch gun head fixing piece; and a cutting torch gun head is clamped between the clamping pieces. According to the circle cutting tool, the ruler mechanism and the cutting torch gun head fixing piece are arranged, the circle cutting radius can be adjusted at will, the circle cutting process is smooth and stable, the posture of the cutting torch is controlled, and the circle cutting tool has the advantages of being convenient to manufacture, flexible to operate and easy to disassemble and assemble. By using the tool, the cutting torch fixing device can be replaced to adapt to cutting torches of different specifications, so that the cut round hole is neat in notch and good in quality.

Description

Technical Field

[0001] The invention relates to mechanical processing, in particular to a metal circle cutting auxiliary device, and relates to a circle cutting tool used in metal cutting. Background Art

[0002] In the actual construction process of modern ships, it is often necessary to open circular holes in steel plates. When only using a cutting knife to open the holes, the problem of irregular incisions and failure to cut out a perfect circle may occur.

[0003] Therefore, those skilled in the art propose a circle cutting tool for use in metal cutting. Summary of the invention

[0004] In view of the above background technology, it is proposed that in the actual construction process of modern ships, circular holes need to be made in steel plates. When only a cutting knife is used to make holes, irregular incisions may occur and a perfect circle cannot be cut out. Therefore, a circular cutting tool used in metal cutting is provided, which should be easy to manufacture, flexible to operate and easy to disassemble and assemble.

[0005] In order to achieve the above invention purpose, the patent of this invention provides the following technical solutions:

[0006] A circle cutting tool used in metal cutting, comprising a scale mechanism, a cutting torch head fixing piece being fixedly connected to the left end of the scale mechanism, two clamping pieces being arranged in a front-to-back mirror-symmetrical manner in the inner cavity of the cutting torch head fixing piece, and the clamping pieces clamp the cutting torch head between each other;

[0007] The scale mechanism includes a cylindrical scale, a stainless steel cone that moves through the outer surface of the cylindrical scale, an end cover fixed to the upper surface of the stainless steel cone, and a locking bolt that contacts the upper surface of the cylindrical scale is rotatably arranged inside the end cover;

[0008] The torch head fixing part includes a sleeve fixed to the left end of the cylindrical scale, a side box fixed to the front and rear sides of the sleeve, and a height support fixed to the left surface of the sleeve, and the bottom surface of the sleeve is connected to a circular ring through magnetic attraction, and a pointed cone is fixedly connected to the center of the bottom end surface of the circular ring;

[0009] The height support member includes a protrusion fixed on the left side surface of the sleeve, a screw rod movably arranged inside the protrusion, and a groove fixed at the bottom end of the screw rod, and a rolling ball is movably arranged inside the groove;

[0010] The clamping parts include a fixing plate fixed on the side wall of the inner cavity of the side box body, a servo motor fixed on the bottom surface of the fixing plate, and a driving gear connected to the rotating shaft of the servo motor and located above the fixing plate, and the top surface of the fixing plate is rotatably connected to two driven gears meshing with the driving gears, a driving rod is fixed on the outer ring surface of the driven gear, the end of the driving rod is rotatably connected to a movable arm, the end of the movable arm is fixed to a clamping arm, and the upper surface and the middle section of the lower surface of the movable arm are rotatably connected to a support arm, and the end of the support arm away from the movable arm is rotatably connected to the front area of ​​the upper and lower surfaces of the fixing plate.

[0011] In the above-mentioned technical solution of a circle cutting tool used in metal cutting, preferably, a length value is etched on the surface of the cylindrical scale, and limit blocks are fixed at both left and right ends of the cylindrical scale, and a movable through hole that passes through the left and right sides is opened inside the stainless steel cone, and the diameter of the limit blocks at the left and right ends of the cylindrical scale is larger than the inner diameter of the movable through hole.

[0012] In the above-mentioned technical solution of a circle cutting tool used in metal cutting, preferably, a threaded hole for a locking bolt to pass through and adapt is opened in the inner central position of the end cover, and the bottom end of the locking bolt located in the inner cavity of the stainless steel cone contacts the top surface of the cylindrical scale.

[0013] In the above-mentioned technical solution of a circle cutting tool used in metal cutting, preferably, a chamber that passes through from top to bottom is opened inside the sleeve, for allowing the cutting torch head to pass through the chamber from top to bottom, and rectangular through holes are opened on the front and rear side walls of the sleeve for communicating with the inner cavity space of the side box.

[0014] In the above-mentioned technical solution of a circle cutting tool used in metal cutting, preferably, the bottom port edge of the sleeve is provided with 6-8 notches in a circular array, an upper magnet block is fixed on the upper surface of the inner cavity of the notch, and 6-8 lower magnet blocks are fixed on the outer ring surface of the circular ring in a circular array, wherein the lower magnet blocks and the upper magnet blocks are magnetically attracted to each other.

[0015] In the above-mentioned technical solution of a circle cutting tool used in metal cutting, preferably, a dry battery for powering the servo motor is fixed on the side wall of the inner cavity of the side box body, and a power supply control mainboard is also installed in the inner cavity of the side box body, and a control button is installed on the side wall of the outer surface of the side box body.

[0016] In the above-mentioned technical solution of a circle cutting tool used in metal cutting, preferably, 4-6 connecting rods are fixed in a circular array on the inner cavity side wall of the circular ring, a circular plate is fixed at one end of the connecting rods that are gathered together, the bottom surface of the circular plate is fixedly connected to the top of the pointed cone, and the tip of the pointed cone faces downward.

[0017] In the above-mentioned technical solution of a circle cutting tool used in metal cutting, preferably, a circular hole is provided inside the protrusion for the screw rod to move up and down, and a nut is screwed on the upper and lower sections of the screw rod located outside the circular hole, and the sides of the nuts close to each other are in contact with the upper and lower surfaces of the protrusion.

[0018] In the above-mentioned technical solution of a circle cutting tool used in metal cutting, preferably, the driven gears are arranged in left-right mirror symmetry with the central axis of the fixed plate as the base point, and the driven gear on the right side is meshed with the driving gear, and the driven gear on the left side is meshed with the driven gear on the right side.

[0019] In the above-mentioned technical solution of a circle cutting tool used in metal cutting, preferably, both ends of the support arm are penetrated by axial pins, and the axial pins penetrate the fixed plate and the movable arm respectively; wherein, the surfaces of the sides of the clamping arms close to each other are provided with anti-slip grooves, and the surfaces of the sides of the clamping arms close to each other are in contact with the outer ring surface of the cutting torch head.

[0020] It can be seen from the above technical solution that the present invention provides a circle cutting tool used in metal cutting. Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. The circle cutting tool of the present invention is used in metal cutting. By setting a scale mechanism and a cutting torch head fixing part, the radius of the circle cutting can be adjusted at will. The circle cutting process is smooth and stable, and the posture of the cutting torch is controlled, thereby achieving the advantages of convenient manufacturing, flexible operation, and easy disassembly and assembly.

[0022] 2. The cutting nozzle fixing device can be replaced by the circle cutting tool of the present invention to adapt to cutting nozzles of different specifications, so that the cut circular hole is neat and of good quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces and describes the drawings required for use in the embodiments of the present invention or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0024] Figure 1 It is a schematic diagram of the overall structure of the circle cutting tool used in metal cutting of the present invention;

[0025] Figure 2 A schematic diagram of a scale mechanism in a circle cutting tool used in metal cutting according to the present invention;

[0026] Figure 3A schematic diagram of a cutting torch head fixing member and a cutting torch in a circle cutting tool used in metal cutting according to the present invention;

[0027] Figure 4 It is a schematic diagram of a cut-off fixing part of a cutting torch head in a circle cutting tool used in metal cutting according to the present invention;

[0028] Figure 5 The figure is a schematic diagram of the internal clamping part of the cutting torch head fixing part in the circle cutting tool used in metal cutting of the present invention.

[0029] Attached Figure 1 -Attached Figure 5 The corresponding relationship of the parts is as follows:

[0030] 1. Scale mechanism; 11. Cylindrical scale; 12. Movable through hole; 13. Stainless steel cone; 14. End cover; 15. Locking bolt; 2. Cutting torch head fixing piece; 21. Sleeve; 22. Side box; 23. Upper magnet block; 24. Ring; 25. Cone; 26. Connecting rod; 27. Lower magnet block; 28. Rolling ball; 29. ​​Groove; 210. Notch; 211. Screw rod; 212. Bump; 213. Nut; 3. Clamp; 31. Fixing plate; 32. Servo motor; 33. Support arm; 34. Clamp arm; 35. Movable arm; 36. Driving rod; 37. Driven gear; 38. Driving gear; 4. Cutting torch head. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described below are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] In order to more clearly explain and illustrate the technical solution and implementation of the present invention, several preferred specific embodiments for implementing the technical solution of the present invention are introduced below.

[0033] Embodiment 1;

[0034] This embodiment is a preferred technical solution for a circle cutting tool used in metal cutting:

[0035] Refer to the instruction manual Figure 1 As shown; it comprises a scale mechanism 1, the left end of which is fixedly connected to a cutting torch head fixing part 2, and the inner cavity of the cutting torch head fixing part 2 is provided with two clamping parts 3 which are arranged symmetrically in front and back mirror images, and the clamping parts 3 clamp the cutting torch head 4 between each other;

[0036] Refer to the instruction manual Figure 2 As shown; the scale mechanism 1 includes a cylindrical scale 11, a stainless steel cone 13 that moves through the outer surface of the cylindrical scale 11, an end cover 14 fixed to the upper surface of the stainless steel cone 13, and a locking bolt 15 that contacts the upper surface of the cylindrical scale 11 is rotatably provided inside the end cover 14;

[0037] Refer to the instruction manual Figure 4 As shown; the cutting torch head fixing member 2 includes a sleeve 21 fixed to the left end of the cylindrical scale 11, a side box 22 fixed to the front and rear sides of the sleeve 21, and a height support member fixed to the left surface of the sleeve 21, and the bottom surface of the sleeve 21 is connected to a ring 24 through magnetic attraction, and a pointed cone 25 is fixedly connected to the center of the bottom end surface of the ring 24; the height support member includes a convex block 212 fixed to the left surface of the sleeve 21, a screw rod 211 movably arranged inside the convex block 212, and a groove 29 fixed to the bottom end of the screw rod 211, and a rolling ball 28 is movably arranged inside the groove 29;

[0038] Refer to the instruction manual Figure 5 As shown; the clamping parts 3 include a fixing plate 31 fixed on the side wall of the inner cavity of the side box body 22, a servo motor 32 fixed on the bottom surface of the fixing plate 31, and a driving gear 38 connected to the rotating shaft of the servo motor 32 and located above the fixing plate 31, and the top surface of the fixing plate 31 is rotatably connected to two driven gears 37 meshing with the driving gear 38, a driving rod 36 is fixed on the outer ring surface of the driven gear 37, the end of the driving rod 36 is rotatably connected to a movable arm 35, the end of the movable arm 35 is fixed to a clamping arm 34, and the upper surface and the middle section of the lower surface of the movable arm 35 are rotatably connected to a support arm 33, and the end of the support arm 33 away from the movable arm 35 is rotatably connected to the front area of ​​the upper and lower surfaces of the fixing plate 31.

[0039] Refer to the instruction manual Figure 5 As shown; the driven gears 37 are all arranged in a left-right mirror symmetric manner with the central axis of the fixed plate 31 as the base point, and the right driven gear 37 is meshed with the driving gear 38, and the left driven gear 37 is meshed with the right driven gear 37. Axle pins are provided at both ends of the support arm 33, and the axle pins penetrate the fixed plate 31 and the movable arm 35 respectively; wherein, the surfaces of the clamping arms 34 on the side close to each other are provided with anti-slip grooves, and the surfaces of the clamping arms 34 on the side close to each other are in contact with the outer ring surface of the cutting torch head 4.

[0040] Refer to the instruction manual Figure 2As shown in the figure, the length value is etched on the surface of the cylindrical scale 11, and the left and right ends of the cylindrical scale 11 are fixed with limit blocks, and the inside of the stainless steel cone 13 is provided with movable through holes 12 that penetrate left and right, and the diameter of the limit blocks at the left and right ends of the cylindrical scale 11 is larger than the inner diameter of the movable through hole 12. A threaded hole for the locking bolt 15 to penetrate and fit is provided at the central position of the inner part of the end cover 14, and the bottom end of the locking bolt 15 located in the inner cavity of the stainless steel cone 13 contacts the top surface of the cylindrical scale 11.

[0041] Refer to the instruction manual Figure 4 As shown; the interior of the sleeve 21 is provided with a chamber that is connected from top to bottom, for the cutting torch head 4 to pass through the chamber from top to bottom, and rectangular through holes are provided on the front and rear side walls of the sleeve 21, for communicating with the inner cavity space of the side box 22. The bottom port edge of the sleeve 21 is provided with 6-8 notches 210 in a circular array, and an upper magnet block 23 is fixed on the upper surface of the inner cavity of the notch 210, and 6-8 lower magnet blocks 27 are fixed on the outer ring surface of the ring 24 in a circular array, wherein the lower magnet blocks 27 and the upper magnet blocks 23 are magnetically attracted to each other. A dry battery for powering the servo motor 32 is fixed on the inner cavity side wall of the side box 22, and a power supply control mainboard is also installed in the inner cavity of the side box 22, and a control button is installed on the outer surface side wall of the side box 22.

[0042] Refer to the instruction manual Figure 4 As shown, 4-6 connecting rods 26 are fixed in a circular array on the inner cavity side wall of the ring 24, and a circular plate is fixed at one end of the connecting rods 26 that gather together. The bottom surface of the circular plate is fixedly connected to the top of the pointed cone 25, and the tip of the pointed cone 25 faces downward. A circular hole is provided inside the protrusion 212 for the screw rod 211 to move up and down, and a nut 213 is screwed on the upper and lower sections of the screw rod 211 outside the circular hole, and the side of the nut 213 that is close to each other contacts the upper and lower surfaces of the protrusion 212.

[0043] According to the above-mentioned preferred technical solution, the operation process of the technical solution in metal circle cutting work is described as follows:

[0044] First, the ring 24 is magnetically connected to the upper magnet block 23 inside the notch 210 through the lower magnet block 27, and the stainless steel cone 13 is moved along the scale on the cylindrical scale 11 to a specified numerical position, the tip of the stainless steel cone 13 is knocked into a groove on the workpiece, and the locking bolt 15 is rotated to lock the position of the stainless steel cone 13 on the cylindrical scale 11.

[0045] Second, loosen the nut 213 at the same time, and let the screw rod 211 move up and down, so that the bottom surface of the ball 28 is flush with the tip of the stainless steel cone 13. At this time, draw a circle with the tip of the stainless steel cone 13 as the base point, and let the tip of the cone 25 draw the mark to be cut on the workpiece.

[0046] Third, after the circular mark is drawn, the ring 24 is removed from the bottom of the sleeve 21, and the cutting torch head 4 is inserted into the sleeve 21, and the two servo motors 32 are synchronously controlled by the control button, and the driven gear 38 drives the driven gear 37 to make the two driving rods 36 move together, thereby pulling the movable arm 35 and the clamping arm 34 to clamp the outer ring surface of the cutting torch head 4, and then clamping and fixing the cutting torch head 4.

[0047] By means of the tool and the operating method of the present invention, a circular hole with a neat cutout can be easily cut out on a steel plate, and the tool has the advantages of convenient manufacture, flexible operation, and easy assembly and disassembly.

[0048] The present invention is not limited to the above-mentioned optimal implementation mode. Anyone should be aware that any structural changes made under the inspiration of the present invention, and any technical solutions that are the same or similar to the present invention, fall within the protection scope of the present invention. Finally, it should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the restrictive conditions that can be implemented in this application, so they have no technical substantive significance. Any structural modification, change in proportional relationship or adjustment of size, without affecting the effects that can be produced by this application and the purposes that can be achieved, should still fall within the scope that can be covered by the technical content disclosed in this application.

Claims

1. A circle cutting tool for use in metal cutting, comprising a scale mechanism (1), characterized in that: The left end of the scale mechanism (1) is fixedly connected to a cutting torch head fixing member (2), and two clamping members (3) arranged in a front-to-back mirror-symmetrical manner are arranged in the inner cavity of the cutting torch head fixing member (2), and the clamping members (3) clamp the cutting torch head (4) between each other; The scale mechanism (1) comprises a cylindrical scale (11), a stainless steel cone (13) that moves through the outer surface of the cylindrical scale (11), an end cover (14) that is fixed to the upper surface of the stainless steel cone (13), and a locking bolt (15) that is rotatably disposed inside the end cover (14) and contacts the upper surface of the cylindrical scale (11); The cutting torch head fixing member (2) comprises a sleeve (21) fixed to the left end of the cylindrical scale (11), a side box (22) fixed to the front and rear sides of the sleeve (21), and a height support member fixed to the left side surface of the sleeve (21), and the bottom surface of the sleeve (21) is connected to a circular ring (24) by magnetic attraction, and a pointed cone (25) is fixedly connected to the center of the bottom end surface of the circular ring (24); The height support member comprises a protrusion (212) fixed on the left side surface of the sleeve (21), a screw rod (211) movably arranged inside the protrusion (212), and a groove (29) fixed at the bottom end of the screw rod (211), and a rolling ball (28) is movably arranged inside the groove (29); The clamping member (3) includes a fixing plate (31) fixed on the side wall of the inner cavity of the side box body (22), a servo motor (32) fixed on the bottom surface of the fixing plate (31), and a driving gear (38) connected to the rotating shaft of the servo motor (32) and located above the fixing plate (31), and the top surface of the fixing plate (31) is rotatably connected to two driven gears (37) meshing with the driving gear (38), a driving rod (36) is fixed on the outer ring surface of the driven gear (37), the end of the driving rod (36) is rotatably connected to a movable arm (35), the end of the movable arm (35) is fixed to a clamping arm (34), and the middle sections of the upper and lower surfaces of the movable arm (35) are rotatably connected to a support arm (33), and the end of the support arm (33) away from the movable arm (35) is rotatably connected to the front area of ​​the upper and lower surfaces of the fixing plate (31).

2. A circle cutting tool for use in metal cutting according to claim 1, characterized in that: The surface of the cylindrical scale (11) is etched with length values, and limit blocks are fixed at both left and right ends of the cylindrical scale (11). The interior of the stainless steel cone (13) is provided with movable through holes (12) that penetrate left and right, and the diameters of the limit blocks at the left and right ends of the cylindrical scale (11) are larger than the inner diameter of the movable through holes (12).

3. A circle cutting tool for use in metal cutting according to claim 1, characterized in that: A threaded hole for a locking bolt (15) to penetrate and fit into is provided at the inner center of the end cover (14), and the bottom end of the locking bolt (15) located in the inner cavity of the stainless steel cone (13) contacts the top surface of the cylindrical scale (11).

4. A circle cutting tool for use in metal cutting according to claim 1, characterized in that: The sleeve (21) has a chamber extending vertically therein for allowing the cutting torch head (4) to pass through the chamber from top to bottom, and rectangular through holes are provided on the front and rear side walls of the sleeve (21) for communicating with the inner cavity space of the side box (22).

5. A circle cutting tool for use in metal cutting according to claim 1, characterized in that: The bottom port edge of the sleeve (21) is provided with 6-8 notches (210) in a circular array, and an upper magnet block (23) is fixed on the upper surface of the inner cavity of each notch (210), and 6-8 lower magnet blocks (27) are fixed on the outer ring surface of the ring (24) in a circular array, wherein the lower magnet blocks (27) and the upper magnet blocks (23) are magnetically attracted to each other.

6. A circle cutting tool for use in metal cutting according to claim 1, characterized in that: A dry cell battery for supplying power to the servo motor (32) is fixed on the inner cavity side wall of the side box body (22), a power supply control mainboard is also installed in the inner cavity of the side box body (22), and a control button is installed on the outer surface side wall of the side box body (22).

7. A circle cutting tool for use in metal cutting according to claim 1, characterized in that: Four to six connecting rods (26) are fixed in a circular array on the inner cavity side wall of the circular ring (24), a circular plate is fixed at one end of the connecting rods (26) that are gathered together, the bottom surface of the circular plate is fixedly connected to the top of the pointed cone (25), and the tip of the pointed cone (25) faces downward.

8. A circle cutting tool for use in metal cutting according to claim 1, characterized in that: The protrusion (212) is provided with a circular hole for the screw rod (211) to move up and down, and the upper and lower sections of the screw rod (211) outside the circular hole are both screwed with a nut (213), and the mutually adjacent sides of the nut (213) are in contact with the upper and lower surfaces of the protrusion (212).

9. A circle cutting tool for use in metal cutting according to claim 1, characterized in that: The driven gears (37) are all arranged in a left-right mirror symmetric manner with the central axis of the fixed plate (31) as a base point, and the right driven gear (37) is meshed with the driving gear (38), and the left driven gear (37) is meshed with the right driven gear (37).

10. A circle cutting tool for use in metal cutting according to claim 1, characterized in that: Both ends of the support arm (33) are provided with axle pins, and the axle pins penetrate the fixed plate (31) and the movable arm (35) respectively; wherein, the surfaces of the clamping arms (34) close to each other are provided with anti-slip grooves, and the surfaces of the clamping arms (34) close to each other are in contact with the outer ring surface of the cutting torch head (4).

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