Magnetic type metal circle cutting tool

Abstract

The utility model discloses a magnetic type metal circle cutting tool which comprises a base, a cutting torch guide assembly and a scriber guide assembly. In the scheme, the base is adsorbed on the metal workpiece, the scriber is fixed on the scriber guide rod through the fixing and locking piece, the position of the scriber guide rod is adjusted, so that the distance between the scriber and the rotating axis of the scriber guide rod is consistent with the radius of an expected workpiece, the position of the scriber guide rod is locked through the scriber locking piece, and the scriber guide rod is rotated, so that the scriber guide rod is fixed. The scribing needle can scribe the shape of an expected workpiece on a to-be-cut metal workpiece; a nozzle of the cutting torch is arranged in the supporting pipe with the posture facing downwards, the position of the cutting torch guide rod is adjusted to enable the nozzle of the cutting torch to be right opposite to a line marked by the marking needle, the position of the cutting torch guide rod is locked through the cutting torch locking piece, and after the cutting torch is started, the cutting torch guide rod is rotated at a constant speed, and then an expected workpiece can be cut on a metal workpiece to be cut.

Description

Technical Field

[0001] The utility model relates to the technical field of metal cutting, and particularly relates to a magnetic metal circle cutting tool. Background Art

[0002] When processing a plate, a hand-held cutting torch is generally used for cutting. Especially when cutting a circular iron plate, the arm remains in one position for a long time, causing arm soreness and resulting in a large error during the cutting process. Content of the Utility Model

[0003] In view of this, the utility model provides a magnetic metal circle cutting tool, which can be adsorbed on a metal workpiece through a base. A marking pin is fixed on a marking pin guide rod through a fixing and locking member. The position of the marking pin guide rod is adjusted so that the distance between the marking pin and the rotation axis of the marking pin guide rod is the same as the radius of the expected workpiece. The position of the marking pin guide rod is locked through a marking pin locking member. When the marking pin guide rod rotates, the marking pin can draw the shape of the expected workpiece on the metal workpiece to be cut. The nozzle of the cutting torch is placed downward inside the support tube. The position of the cutting torch guide rod is adjusted so that the nozzle of the cutting torch is directly opposite to the line drawn by the marking pin. The position of the cutting torch guide rod is locked through a cutting torch locking member. After the cutting torch is started, the cutting torch guide rod is rotated at a constant speed to cut out the expected workpiece on the metal workpiece to be cut.

[0004] To achieve the above object, the utility model provides the following technical solutions:

[0005] A magnetic metal circle cutting tool, comprising:

[0006] A base for adsorbing a metal workpiece and providing an installation foundation;

[0007] A cutting torch guiding assembly, comprising a cutting torch guide rod for sliding relative to the base, a cutting torch locking member for hindering the sliding of the cutting torch guide rod, and a support tube fixed to the cutting torch guide rod and used for vertically supporting the cutting torch. The cutting torch guide rod can rotate about a vertical axis relative to the base;

[0008] A marking pin guiding assembly, comprising a marking pin guide rod for sliding relative to the base, a marking pin locking member for hindering the sliding of the marking pin guide rod, a fixing tube fixed to the marking pin guide rod and used for sleeving the marking pin, and a fixing and locking member for hindering the movement of the marking pin relative to the fixing tube. The marking pin guide rod can rotate about a vertical axis relative to the base.

[0009] Preferably, the base comprises a magnetic adsorption seat for adsorbing the metal workpiece and a mounting shaft rotatably connected to the magnetic adsorption seat. The rotation axis of the mounting shaft is vertically arranged.

[0010] Preferably, the cutting torch guide rod is provided with anti-rotation convex ribs arranged along its axial direction and protruding outside its side wall, the mounting shaft is provided with a limiting through groove for accommodating the anti-rotation convex ribs, and the anti-rotation convex ribs are clamped with the mounting shaft along the radial direction of the cutting torch guide rod.

[0011] Preferably, the bottom side of the outer wall of the cutting torch guide rod has a frosted surface, the mounting shaft is provided with a slideway for accommodating the cutting torch guide rod, the slideway has a bottom inner wall adapted to the outer wall of the cutting torch guide rod, the inner side wall of the slideway abuts against the outer wall of the cutting torch guide rod, and the bottom wall of the cutting torch guide rod can move upward to disengage from the bottom inner wall of the slideway.

[0012] Preferably, the cutting torch locking member includes a cutting torch locking bolt, and the cutting torch locking bolt is threadedly connected to the mounting shaft and can abut against the cutting torch guide rod; or,

[0013] The scriber locking member includes a scriber locking bolt, and the scriber locking bolt is threadedly connected to the mounting shaft and can abut against the scriber guide rod.

[0014] Preferably, the support tube includes a plurality of coaxially threaded sleeves.

[0015] Preferably, the sleeve includes a fixed sleeve for connecting other sleeves or the cutting torch guide rod, and a rotating sleeve coaxially and rotatably connected inside the fixed sleeve.

[0016] Preferably, the cutting torch guide rod is provided with a mark for indicating the distance between the axis of the support tube and the rotation axis of the cutting torch guide rod.

[0017] As can be seen from the above technical solutions, the magnetic adsorption type metal circle cutting tool provided by the present utility model is adsorbed on a metal workpiece through a base, the scriber is fixed on the scriber guide rod through a fixed locking member, the position of the scriber guide rod is adjusted so that the distance between the scriber and the rotation axis of the scriber guide rod is the same as the radius of the expected workpiece, and the position of the scriber guide rod is locked through a scriber locking member. When the scriber guide rod is rotated, the scriber can draw the shape of the expected workpiece on the metal workpiece to be cut; the nozzle of the cutting torch is placed downward inside the support tube, the position of the cutting torch guide rod is adjusted so that the nozzle of the cutting torch is aligned with the line drawn by the scriber, the position of the cutting torch guide rod is locked through a cutting torch locking member, and after the cutting torch is started, the cutting torch guide rod is rotated at a constant speed to cut out the expected workpiece on the metal workpiece to be cut. Description of the Drawings

[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0019] Figure 1 It is a schematic diagram showing the structure of a magnetic adsorption type metal circle cutting tool according to an exemplary embodiment;

[0020] Figure 2 It is a schematic diagram showing the structure of a turntable according to an exemplary embodiment;

[0021] Figure 3 It is shown according to an exemplary embodiment Figure 2 An enlarged view of part A showing the position of the snap ring;

[0022] Figure 4 It is a schematic diagram showing the structure of a fixed tube according to an exemplary embodiment;

[0023] Figure 5 It is shown according to an exemplary embodiment Figure 4 An enlarged view of part B showing the structure of the slideway;

[0024] Reference numerals:

[0025] 1. Scratch awl guiding assembly; 11. Scratch awl locking member; 111. Scratch awl bolt; 12. Scratch awl guide rod; 13. Fixed tube; 14. Fixed locking member; 141. Fixed bolt; 15. Scratch awl mark; 2. Torch guiding assembly; 21. Torch locking member; 211. Torch locking bolt; 22. Torch guide rod; 23. Support tube; 231. Sleeve; 232. Rotating sleeve; 233. Fixed sleeve; 24. Anti-rotation rib; 25. Torch mark; 26. Threaded sleeve; 27. Frosted surface; 28. Snap ring; 29. Card slot; 3. Base; 31. Magnetic adsorption seat; 32. Mounting shaft; 33. Turntable; 34. Slideway; 35. Limit through groove. Detailed implementation manners

[0026] The utility model discloses a magnetic adsorption type metal circle cutting tool, which can be adsorbed on a metal workpiece through a base. A scriber is fixed on a scriber guide rod through a fixing and locking member. The position of the scriber guide rod is adjusted so that the distance between the scriber and the rotation axis of the scriber guide rod is consistent with the radius of the expected workpiece. The position of the scriber guide rod is locked through a scriber locking member. When the scriber guide rod rotates, the scriber can draw the shape of the expected workpiece on the metal workpiece to be cut. The nozzle of the cutting torch is placed downward inside the support pipe, and the position of the cutting torch guide rod is adjusted so that the nozzle of the cutting torch is aligned with the line drawn by the scriber. The position of the cutting torch guide rod is locked through a cutting torch locking member. After the cutting torch is started, the cutting torch guide rod is rotated at a constant speed to cut out the expected workpiece on the metal workpiece to be cut.

[0027] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0028] In an exemplary embodiment of the present disclosure, a magnetic adsorption type metal circle cutting tool is provided, as Figure 1 and Figure 2 shown, Figure 1 is a schematic diagram showing the structure of a magnetic adsorption type metal circle cutting tool according to an exemplary embodiment; Figure 2 is a schematic diagram showing the structure of a turntable according to an exemplary embodiment; Figure 3 is shown according to an exemplary embodiment Figure 2 in which is an enlarged view of part A showing the position of a snap ring; Figure 4 is a schematic diagram showing the structure of a fixed pipe according to an exemplary embodiment; Figure 5 is shown according to an exemplary embodiment Figure 4 in which is an enlarged view of part B showing the structure of a slideway. The following will be explained with reference to Figures 1 to 5 for explanation.

[0029] Some specific implementation manners described hereinafter are intended to facilitate those skilled in the art to understand the present embodiment, and the present embodiment is not limited to some specific implementation manners described hereinafter.

[0030] Referring to Figure 1 , a magnetic adsorption type metal circle cutting tool provided in an exemplary embodiment of the present disclosure, the magnetic adsorption type metal circle cutting tool includes:

[0031] A base 3, which is used to adsorb a metal workpiece and provide an installation foundation;

[0032] The torch guiding assembly 2 includes a torch guiding rod 22 for sliding relative to the base 3, a torch locking member 21 for hindering the sliding of the torch guiding rod 22, and a support pipe 23 fixed to the torch guiding rod 22 and for vertically supporting the torch. The torch guiding rod 22 can rotate about a vertical axis relative to the base 3;

[0033] The scriber guiding assembly 1 includes a scriber guiding rod 12 for sliding relative to the base 3, a scriber locking member 11 for hindering the sliding of the scriber guiding rod 12, a fixing pipe 13 fixed to the scriber guiding rod 12 and for sleeving the scriber, and a fixing locking member 14 for hindering the movement of the scriber relative to the fixing pipe 13. The scriber guiding rod 12 can rotate about a vertical axis relative to the base 3.

[0034] Exemplarily, referring to Figure 1 and Figure 2 , the base 3 includes a magnetic suction base 31 for adsorbing a metal workpiece and a mounting shaft 32 rotatably connected to the magnetic suction base 31. The rotation axis of the mounting shaft 32 is vertically arranged. The mounting shaft 32 is in a vertical posture, and an inverted T-shaped turntable 33 is integrally formed at the bottom end of the mounting shaft 32. The turntable 33 is placed inside the magnetic suction base 31. The turntable 33 is rotatably connected to the magnetic suction base 31 about a vertical axis and is vertically clamped with the magnetic suction base 31. The turntable 33 stably connects the mounting shaft 32 and the magnetic suction base 31 and enables relative rotation.

[0035] The torch guiding rod 22 is in a horizontal posture and penetrates through the mounting shaft 32. The support pipe 23 is in a vertical posture and is fixedly connected to one end of the torch guiding rod 22. The torch locking member 21 includes a torch locking bolt 211. The torch locking bolt 211 is horizontally arranged, and the threaded end of the torch locking bolt 211 extends into the interior of the mounting shaft 32. The torch locking bolt 211 is threadedly connected to the mounting shaft 32 and can abut against the torch guiding rod 22. By screwing the torch locking bolt 211, the threaded end of the torch locking bolt 211 can abut against and fix the torch guiding rod 22, or disconnect the threaded end of the torch locking bolt 211 from the torch guiding rod 22.

[0036] The scribing needle guide rod 12 is in a horizontal posture and penetrates through the mounting shaft 32. The scribing needle guide rod 12 and the torch guide rod 22 are perpendicular to each other and are vertically spaced apart. The fixed tube 13 is in a vertical posture and is fixedly connected to one end of the scribing needle guide rod 12. The scribing needle locking member 11 includes a scribing needle locking bolt 111. The scribing needle locking bolt 111 is horizontally arranged. The threaded end of the scribing needle locking bolt 111 extends into the interior of the mounting shaft 32. The scribing needle locking bolt 111 is threadedly connected to the mounting shaft 32 and can abut against the scribing needle guide rod 12. By turning the scribing needle locking bolt 111, the threaded end of the scribing needle locking bolt 111 can abut against and fix the scribing needle guide rod 12, or the threaded end of the scribing needle locking bolt 111 can be disengaged from the scribing needle guide rod 12. The fixed locking member 14 includes a fixed locking bolt. The fixing bolt 141 is horizontally arranged. The fixing bolt 141 is threadedly connected to the fixed tube 13. The threaded end of the fixing bolt 141 can extend into the interior of the fixed tube 13 and abut against the scribing needle inserted into the fixed tube 13. By turning the fixing bolt 141, the threaded end of the fixing bolt 141 can abut against and fix the scribing needle, or the threaded end of the fixing bolt 141 can be disengaged from the scribing needle.

[0037] The torch guide rod 22 is provided with a torch mark 25 for indicating the distance between the axis of the support tube 23 and the axis of rotation of the torch guide rod 22. When the axis of the fixed sleeve 233 is vertically arranged, the torch mark 25 is located at the top of the side wall of the torch guide rod 22. The scribing needle guide rod 12 is provided with a scribing needle mark 15 for indicating the distance between the axis of the fixed tube 13 and the axis of rotation of the scribing needle guide rod 12. When the axis of the fixed sleeve 233 is vertically arranged, the scribing needle mark 15 is located at the top of the side wall of the scribing needle guide rod 12.

[0038] In this embodiment, it is adsorbed on the metal workpiece through the base 3. The scribing needle is fixed on the scribing needle guide rod 12 through the fixed locking member 14. The position of the scribing needle guide rod 12 is adjusted so that the distance between the scribing needle and the axis of rotation of the scribing needle guide rod 12 is the same as the radius of the expected workpiece. The position of the scribing needle guide rod 12 is locked through the scribing needle locking member 11. The scribing needle guide rod 12 is rotated, and the scribing needle can scribe the shape of the expected workpiece on the metal workpiece to be cut. The nozzle of the torch is placed downward inside the support tube 23. The position of the torch guide rod 22 is adjusted so that the nozzle of the torch is aligned with the line scribed by the scribing needle. The position of the torch guide rod 22 is locked through the torch locking member 21. After starting the torch, the torch guide rod 22 is rotated at a constant speed, and a workpiece of the expected size can be cut on the metal workpiece to be cut.

[0039] In an exemplary embodiment of the present disclosure, with reference to Figure 1 and Figure 2 , the support tube 23 includes a plurality of coaxially threadedly connected sleeves 231.

[0040] Exemplarily, with reference to Figure 1 and Figure 3A threaded sleeve 26 is integrally formed at the bottom end of the sleeve 231. The threaded sleeve 26 is coaxially arranged with the sleeve 231. The inner wall of the threaded sleeve 26 is coplanar with the outer wall of the sleeve 231. The top of the side wall of the sleeve 231 has a thread that matches the inner wall of the threaded sleeve 26. The two sleeves 231 can be coaxially connected through the threaded sleeve 26 to change the height of the nozzle of the cutting torch inserted into the sleeve 231.

[0041] In this embodiment, the sleeve 231 includes a fixed sleeve 233 for connecting other sleeves 231 or the cutting torch guide rod 22, and a rotating sleeve 232 coaxially rotatably connected to the inside of the fixed sleeve 233. The outer wall of the rotating sleeve 232 is integrally formed with an annular clamping ring 28 coaxial with the rotating sleeve 232, the outer wall of the clamping ring 28 extends beyond the outer wall of the rotating sleeve 232, the inner wall of the fixed sleeve 233 is provided with a clamping groove 29 adapted to the clamping ring 28, the clamping ring 28 is inserted into the inside of the clamping groove 29, and the outer wall of the rotating sleeve 232 abuts against the inner wall of the fixed sleeve 233.

[0042] In an exemplary embodiment of the present disclosure, referring to Figure 1 and Figure 4 The cutting torch guide rod 22 has a stop rib 24 arranged along its axial direction and protruding from its side wall, and the mounting shaft 32 has a limiting groove 35 for accommodating the stop rib 24. The stop rib 24 is clamped with the mounting shaft 32 along the radial direction of the cutting torch guide rod 22.

[0043] For example, refer to Figure 1 and Figure 5 The anti-rotation rib 24 extends from one end of the torch guide rod 22 to the other end of the torch guide rod 22 along the length direction of the torch guide rod 22, and the torch mark 25 is formed on the top surface of the anti-rotation rib 24. A horizontal slideway 34 for accommodating the torch guide rod 22 is provided on the mounting shaft 32. The contour of the bottom side of the inner wall of the slideway 34 is semicircular and matches the outer wall of the torch guide rod 22. The contour of the top side of the inner wall of the slideway 34 is semicircular and matches the outer wall of the torch guide rod 22. The area between the top side of the inner wall of the slideway 34 and the bottom side of the inner wall is a straight structure in a vertical posture. The top side of the inner wall of the slideway 34 extends toward the inside of the mounting shaft 32 to form a limiting groove 35 that matches the anti-rotation rib 24. When the top surface of the anti-rotation rib 24 abuts against the top surface of the inner wall of the limiting groove 35, the side wall of the torch guide rod 22 abuts against the top side of the inner wall of the slideway 34.

[0044] In this embodiment, the outer bottom side of the torch guide rod 22 has a frosted surface 27, and the user can move the torch guide rod 22 upward to separate the bottom wall of the torch guide rod 22 from the bottom inner wall of the slide 34, thereby changing the position of the torch guide rod 22 more smoothly.

[0045] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present utility model. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present utility model. Therefore, the present utility model will not be limited to the embodiments shown herein, but rather to the broadest scope consistent with the principles and novel features disclosed herein.

Claims

1. A magnetic metal circle cutting tool, characterized in that: include: A base (3) is used to absorb the metal workpiece and provide a mounting base; A cutting torch guide assembly (2), comprising a cutting torch guide rod (22) for sliding relative to the base (3), a cutting torch locking member (21) for preventing the cutting torch guide rod (22) from sliding, and a support tube (23) fixed to the cutting torch guide rod (22) and used for vertically supporting the cutting torch, wherein the cutting torch guide rod (22) can rotate relative to the base (3) about a vertical axis; The scribing needle guide assembly (1) comprises a scribing needle guide rod (12) for sliding relative to the base (3), a scribing needle locking member (11) for preventing the scribing needle guide rod (12) from sliding, a fixed tube (13) fixed to the scribing needle guide rod (12) and used for sleeve-engaging the scribing needle, and a fixed locking member (14) for preventing the scribing needle from moving relative to the fixed tube (13), wherein the scribing needle guide rod (12) is capable of rotating around a vertical axis relative to the base (3).

2. The magnetic metal circle cutting tool according to claim 1, characterized in that: The base (3) comprises a magnetic seat (31) for adsorbing the metal workpiece and a mounting shaft (32) rotatably connected to the magnetic seat (31), wherein the rotation axis of the mounting shaft (32) is arranged vertically.

3. The magnetic metal circle cutting tool according to claim 2, characterized in that: The cutting torch guide rod (22) has a rotation-stopping ridge (24) arranged along its axial direction and protruding from its side wall, and the mounting shaft (32) has a limiting through groove (35) for accommodating the rotation-stopping ridge (24). The rotation-stopping ridge (24) and the mounting shaft (32) are clamped together along the radial direction of the cutting torch guide rod (22).

4. The magnetic metal circle cutting tool according to claim 2, characterized in that: The outer wall bottom side of the cutting torch guide rod (22) has a frosted surface (27), and the mounting shaft (32) is provided with a slideway (34) for accommodating the cutting torch guide rod (22). The slideway (34) has a bottom inner wall adapted to the outer wall of the cutting torch guide rod (22), and the inner wall of the slideway (34) abuts against the outer wall of the cutting torch guide rod (22). The bottom wall of the cutting torch guide rod (22) can be separated from the bottom inner wall of the slideway (34) by moving the cutting torch guide rod (22) upward.

5. The magnetic metal circle cutting tool according to claim 2, characterized in that: The cutting torch locking member (21) comprises a cutting torch locking bolt (211), wherein the cutting torch locking bolt (211) is threadedly connected to the mounting shaft (32) and is capable of abutting against the cutting torch guide rod (22); or, The scribing needle locking member (11) comprises a scribing needle locking bolt (111), wherein the scribing needle locking bolt (111) is threadedly connected to the mounting shaft (32) and is capable of abutting against the scribing needle guide rod (12).

6. The magnetic metal circle cutting tool according to claim 1, characterized in that: The support tube (23) comprises a plurality of coaxially threaded sleeves (231).

7. The magnetic metal circle cutting tool according to claim 6, characterized in that: The sleeve (231) comprises a fixed sleeve (233) used for connecting to other sleeves (231) or the cutting torch guide rod (22), and a rotating sleeve (232) coaxially rotatably connected to the inside of the fixed sleeve (233).

8. The magnetic metal circle cutting tool according to claim 1, characterized in that: The cutting torch guide rod (22) has a mark for indicating the distance between the axis of the support tube (23) and the rotation axis of the cutting torch guide rod (22).

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