Cutting tool with accurate positioning function

Abstract

The invention relates to the field of cutting tools, and discloses a cutting tool with an accurate positioning function, which comprises a protective shell, the lower end of the protective shell is fixedly connected with an upper cover body, the lower end of the upper cover body is connected with the upper end of a lower cover body, an angle adjusting structure is arranged in the protective shell, and a positioning marking device is arranged in the middle of the lower cover body. The positioning marking device comprises a rotating structure, the rotating structure is connected with the clamping structure, the lower end of the rotating structure is connected with the marking structure, the angle adjusting structure comprises a worm, and the outer ring of the worm is meshed with first worm gears which are arranged at equal intervals. Angles of round face milling cutters need to be changed manually one by one, so that the utilization rate is increased, errors in precision are avoided, however, it is troublesome to manually adjust rotation angles one by one, and once errors occur in precision, the utilization rate of each milling cutter is not uniform.

Description

Technical Field

[0001] The invention relates to the technical field of cutting tools, in particular to a cutting tool with an accurate positioning function. Background Art

[0002] Patent No. CN113927081B discloses a cutting tool with precise positioning function and its installation method, the device includes a tool holder and a cutting tool; the outer walls around the tool holder are processed with evenly distributed chip grooves; the outer wall on one side of the chip groove is processed with a mounting seat; the inner wall on one side of the mounting seat is processed with a movable groove; the inner wall on one side of the movable groove is slidably connected with a limiting connecting rod. This method inserts the limiting connecting rod into the limiting groove and fixes the cutting tool on the mounting seat to cut the material. The invention installs the cutting tool on the mounting seat of the tool holder. After cutting for a period of time, the effective cutting part of the cutting tool will wear, and then the cutting tool is moved and rotated by the tool adjustment mechanism, and its worn part is placed in the plug-in slot, thereby improving the utilization rate of the cutting tool and the practicality of the device.

[0003] Existing cutting tools include many types such as turning tools, drilling tools, boring tools, and milling tools. Milling tools include end mills, flat-head end mills, ball-head end mills, face mills, etc. Existing large workpieces are often roughed with circular face milling cutters, but existing circular face milling cutters are fixed on cylinders or cones in a ring shape. According to the wear depth of the circular face milling cutter, it is necessary to manually change the angle of each circular face milling cutter to improve the utilization rate and avoid errors in precision. However, it is troublesome to manually adjust the rotation angles one by one, and once the precision error occurs, the utilization rate of each milling cutter will be uneven.

[0004] At the same time, the roughing of existing large workpieces requires tool setting to ensure the accuracy of precision, but the existing tool setting is only performed by multi-point grooving. If the tool setting is not accurate, it is very likely to cause damage to the workpiece.

[0005] Therefore, a cutting tool with accurate positioning function is needed to solve the above problems. Summary of the invention

[0006] The problem to be solved by the present invention is that the roughing of existing large workpieces often requires the use of circular face milling cutters, but the existing circular face milling cutters are fixed in a ring shape on a cylinder or a cone. According to the milling wear depth of the circular face milling cutter, it is necessary to manually change the angle of each circular face milling cutter to improve the utilization rate and avoid errors in precision. However, it is troublesome to manually adjust the rotation angles one by one, and once an error occurs in precision, the utilization rate of each milling cutter will be uneven.

[0007] At the same time, the roughing of existing large workpieces requires tool setting to ensure the accuracy of precision, but the existing tool setting is only performed by multi-point grooving. If the tool setting is not accurate, it is very likely to cause damage to the workpiece.

[0008] In order to solve the above technical problems, the technical solution of the present invention is: a cutting tool with accurate positioning function, comprising a protective shell, the lower end of the protective shell is fixedly connected to the upper cover body, the lower end of the upper cover body is connected to the upper end of the lower cover body, an angle adjustment structure is arranged in the protective shell, and a positioning marking device is arranged in the middle position of the lower cover body; The positioning marking device comprises a rotating structure, the rotating structure is connected to the clamping structure, and the lower end of the rotating structure is connected to the marking structure; The angle adjustment structure comprises a worm, an outer ring of which is meshed with a first worm gear arranged equidistantly, the first worm gear is meshed with a second worm gear, and one end of the second worm gear is connected to a tool.

[0009] Preferably, the top of the worm is connected and fixed to the bottom of the bevel gear, and the protective shell is provided with a through hole, which is opposite to the bevel gear.

[0010] Preferably, one end of the tool close to the second worm gear is fixedly connected to a hexagonal sleeve block, the hexagonal sleeve block is engaged with a hexagonal slot provided in the second worm gear, the second worm gear has a threaded hole, and the threaded hole is threadedly connected to a connecting bolt.

[0011] Preferably, the lower cover body is provided with a first card slot and a second card slot, and the first card slot and the second card slot are both fitted with the ends of the first worm gear and the second worm gear.

[0012] Preferably, the rotating structure comprises a ring cover plate, the inner ring of the ring cover plate is clamped with the outer ring of the connecting block, the top of the connecting block is threadedly connected to the worm, the ring cover plate is connected and fixed to the rotating block, and a clamping structure is arranged inside the rotating block.

[0013] Preferably, the clamping structure comprises symmetrically arranged clamping rods, a first elastic member is arranged between the clamping rods, the clamping rods are slidably clamped with sliding holes provided in the rotating block, and the opposite ends of the clamping rods are clamped with clamping holes provided in the lower cover body.

[0014] Preferably, the marking structure comprises a marking pen, which is slidably connected to a symmetrically arranged guide rod, one end of the guide rod is connected to a rotating rod, and both ends of the rotating rod are rotatably connected to a rotating block through symmetrically provided rotating holes.

[0015] Preferably, the marking pen includes a liquid storage rod, a second elastic member is arranged at one end inside the liquid storage rod, the lower end of the second elastic member is connected to the liquid baffle plate, the liquid storage rod at the lower end of the liquid baffle plate has a liquid outlet, the lower end of the liquid baffle plate is connected to the marking head, and the marking head is slidably connected to the liquid outlet hole.

[0016] Compared with the prior art, the technical solution of the present invention has the following advantages: (1) In view of the fact that the wear depth of the tool affects the accuracy, the first worm gear and the second worm gear can be rotated by rotating the worm, and the second worm gear will drive the tool to rotate and adjust the angle, so that the remaining intact surface of the tool can be fully utilized for milling, avoiding waste caused by excessive adjustment of the tool surface angle. At the same time, the simultaneous adjustment of multiple tool surfaces will not cause errors, and the adjustment is faster and more efficient; (2) By manually inserting a tool into the through hole opened in the protective shell, the tool and the bevel gear transmission connection can conveniently and quickly adjust the rotation of the worm, thereby improving efficiency and convenience. At the same time, when not in use, the through hole needs to be blocked or threaded, and the through hole is connected by a bolt thread to prevent the entry of foreign matter and affect the adjustment; the clamping connection between the hexagonal sleeve and the hexagonal slot can avoid reducing the load-bearing of the connecting bolt, thereby being more stable, and when the tool angle is rotated, it can avoid the occurrence of errors as the second worm gear rotates.

[0017] (3) The marking pen tip is made of fiber material so that it can better absorb the pen liquid for drawing. After the tool is pressed down, the marking head pushes up the liquid baffle plate to allow the pen liquid in the liquid storage rod to flow into the marking head to draw the rough edge of the workpiece. After the tool is lifted, the liquid baffle plate is reset through the second elastic member, thereby closing the liquid outlet to prevent the loss of pen liquid. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the lower end of the present invention; Figure 2 It is a schematic diagram of the overall structure of the upper end of the present invention; Figure 3 It is a structural schematic diagram of the angle adjustment structure in the present invention; Figure 4 An exploded view of the present invention; Figure 5 It is a schematic diagram of the structure of the hexagonal sleeve block in the present invention; Figure 6 It is a structural schematic diagram of the hexagonal slot in the present invention; Figure 7 It is an exploded view of the positioning marking device in the present invention; Figure 8 An exploded view of the clamping structure of the present invention; Fig. 9 It is a structural schematic diagram of the marking structure in the present invention; Fig.10 It is a partial cross-sectional view of the marking pen in the invention; Fig.11 for Figure 3 Enlarged view of point A in the middle.

[0019] In the figure: 1-protective shell, 2-upper cover, 3-lower cover, 31-first slot, 32-second slot, 33-hole, 4-tool, 41-hexagonal sleeve, 5-angle adjustment structure, 51-bevel gear, 52-worm, 53-first worm wheel, 54-second worm wheel, 541-hexagonal slot, 542-connecting bolt, 6-positioning marking device, 61-rotating structure, 611-ring cover, 612-connecting block, 613-rotating block, 62-clamping structure, 621-clamping rod, 622-first elastic member, 623-limiting block, 63-marking structure, 631-rotating rod, 632-guide rod, 633-marking pen, 6331-liquid storage rod, 6332-second elastic member, 6333-liquid baffle plate, 6334-marking head. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solution and advantages of the embodiments of the present disclosure clearer, the technical solution of the embodiments of the present disclosure will be clearly and completely described below in conjunction with the drawings of the embodiments of the present disclosure. Obviously, the described embodiments are part of the embodiments of the present disclosure, not all of the embodiments. Based on the described embodiments of the present disclosure, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present disclosure.

[0021] Unless otherwise defined, the technical terms or scientific terms used in the present disclosure should be understood by people with ordinary skills in the field to which the present disclosure belongs. "Include" or "comprise" and other similar words used in the present disclosure mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and other similar words are not limited to physical or mechanical connections, but may also include electrical connections, whether direct or indirect. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0022] like Figures 1 to 11 As shown, the present invention provides a cutting tool with accurate positioning function, including a protective shell 1, the lower end of the protective shell 1 is fixedly connected to the upper cover body 2, the lower end of the upper cover body 2 is connected to the upper end of the lower cover body 3 by bolts, an angle adjustment structure 5 is arranged in the protective shell 1, and a positioning marking device 6 is arranged in the middle position of the lower cover body 3, the positioning marking device 6 includes a rotating structure 61, the rotating structure 61 is connected to the clamping structure 62, and the lower end of the rotating structure 61 is connected to the marking structure 63.

[0023] The angle adjustment structure 5 includes a worm 52, an outer ring of the worm 52 is meshed with a first worm wheel 53 equidistantly arranged, the first worm wheel 53 is meshed with a second worm wheel 54, and one end of the second worm wheel 54 is connected to the tool 4. In view of the fact that the wear depth of the tool 4 affects the accuracy, the first worm wheel 53 and the second worm wheel 54 can be rotated by rotating the worm 52, and the second worm wheel 54 will drive the tool 4 to rotate and adjust the angle, so that the remaining intact surfaces of the tool 4 can be fully utilized for milling, avoiding waste caused by excessive adjustment of the angle of the tool 4 surface. At the same time, the simultaneous adjustment of multiple tool 4 surfaces will not cause errors, and the adjustment is faster and more efficient.

[0024] The top of the worm 52 is connected and fixed to the bottom of the bevel gear 51, and a through hole is opened in the protective shell 1, which is opposite to the bevel gear 51. By manually inserting a tool into the through hole opened in the protective shell 1, the tool and the bevel gear 51 are connected in transmission, so that the worm 52 can be easily and quickly rotated and adjusted, thereby improving efficiency and convenience. At the same time, when not in use, the through hole needs to be blocked or threaded, and the through hole is connected with a bolt thread to prevent foreign matter from entering and affecting the adjustment.

[0025] One end of the tool 4 close to the second worm gear 54 is fixedly connected to the hexagonal sleeve block 41, the hexagonal sleeve block 41 is clamped with the hexagonal slot 541 provided on the second worm gear 54, the second worm gear 54 is provided with a threaded hole, and the threaded hole is threadedly connected with the connecting bolt 542. The clamping of the hexagonal sleeve block 41 and the hexagonal slot 541 can avoid reducing the load-bearing of the connecting bolt 542, thereby being more stable, and when the angle of the tool 4 is rotated, it can avoid the occurrence of errors as the second worm gear 54 rotates.

[0026] The lower cover body 3 is provided with a first slot 31 and a second slot 32, and the first slot 31 and the second slot 32 are both fitted with the ends of the first worm gear 53 and the second worm gear 54. When installing the first worm gear 53 and the second worm gear 54, the first slot 31 and the second slot 32 can ensure that the installation position of the first worm gear 53 and the second worm gear 54 is accurately limited and the installation is convenient and quick. At the same time, the accuracy of the limitation can avoid the influence caused by error transmission.

[0027] The rotating structure 61 includes a ring cover plate 611, the inner ring of the ring cover plate 611 is clamped with the outer ring of the connecting block 612, the top of the connecting block 612 is threadedly connected to the worm 52, the ring cover plate 611 is connected and fixed to the rotating block 613, and a clamping structure 62 is arranged inside the rotating block 613. The clamping structure 62 can be further clamped with the lower cover body 3 by rotation, and the marking structure 63 can be aligned with the lower end of each tool 4 at the same time to confirm whether the angles between the tools 4 are aligned without error.

[0028] The clamping structure 62 includes symmetrically arranged clamping rods 621, and a first elastic member 622 is arranged between the clamping rods 621. The first elastic member 622 is a spring. The clamping rod 621 is slidably clamped with a sliding hole opened in the rotating block 613, and the opposite end of the clamping rod 621 is clamped with a clamping hole 33 opened in the lower cover body 3. The clamping rod 621 can be pushed out and clamped with the clamping hole 33 through the first elastic member 622 between the clamping rods 621, so as to align and limit the tool 4.

[0029] The marking structure 63 includes a marking pen 633, which is slidably connected to a symmetrically arranged guide rod 632. One end of the guide rod 632 is connected to a rotating rod 631. Both ends of the rotating rod 631 are symmetrically provided with rotating holes for rotation connection with the rotating block 613, and a cover threadedly connected to the bottom of the rotating block 613 is required to be provided, so as to prevent foreign matter from entering the rotating block 613 or the marking pen 633 from being thrown out. By sliding the marking pen 633 between the guide rods 632 and engaging it, it can be aligned with the lower end of the tool 4. Through the rotation of the equipment, the marking pen 633 is used to draw and roughen the edge, thereby ensuring accurate accuracy without error and avoiding damage to the workpiece.

[0030] The marking pen 633 includes a liquid storage rod 6331, and a second elastic member 6332 is arranged at one end of the liquid storage rod 6331. The second elastic member 6332 is a spring. The lower end of the second elastic member 6332 is connected to the liquid baffle plate 6333. The liquid storage rod 6331 at the lower end of the liquid baffle plate 6333 has a liquid outlet. The lower end of the liquid baffle plate 6333 is connected to the marking head 6334. The marking pen tip 6334 is a fiber material pen tip so that it can better absorb the pen liquid for drawing. The marking head 6334 is slidably connected to the liquid outlet. After the tool 4 is pressed down, the marking head 633 pushes up the liquid baffle plate 6333 to allow the pen liquid in the liquid storage rod 6331 to flow into the marking head 6334 to draw the rough edge of the workpiece. After the tool 4 is lifted, the liquid baffle plate 6333 is reset by the second elastic member 633, thereby closing the liquid outlet to prevent the loss of pen liquid.

[0031] The above embodiments are only exemplary embodiments of the present invention and are not intended to limit the present invention. The protection scope of the present invention is defined by the claims. Those skilled in the art may make various modifications or equivalent substitutions to the present invention within the essence and protection scope of the present invention, and such modifications or equivalent substitutions shall also be deemed to fall within the protection scope of the present invention.

Claims

1. A cutting tool with accurate positioning function, comprising a protective housing (1), characterized in that: The lower end of the protective shell (1) is fixedly connected to the upper cover (2), the lower end of the upper cover (2) is connected to the upper end of the lower cover (3), an angle adjustment structure (5) is arranged in the protective shell (1), and a positioning marking device (6) is arranged in the middle of the lower cover (3); The positioning marking device (6) comprises a rotating structure (61), the rotating structure (61) is connected to a clamping structure (62), and the lower end of the rotating structure (61) is connected to a marking structure (63); The angle adjustment structure (5) comprises a worm (52), the outer ring of which is meshed with a first worm gear (53) arranged at equal intervals, the first worm gear (53) is meshed with a second worm gear (54), and one end of the second worm gear (54) is connected to the tool (4).

2. A cutting tool with accurate positioning function according to claim 1, characterized in that: The top of the worm (52) is connected and fixed to the bottom of the bevel gear (51), and the protective housing (1) is provided with a through hole, which is opposite to the bevel gear (51).

3. A cutting tool with accurate positioning function according to claim 1, characterized in that: One end of the tool (4) close to the second worm gear (54) is fixedly connected to a hexagonal sleeve (41), the hexagonal sleeve (41) is engaged with a hexagonal slot (541) provided on the second worm gear (54), the second worm gear (54) is provided with a threaded hole, and the threaded hole is threadedly connected to a connecting bolt (542).

4. A cutting tool with accurate positioning function according to claim 1, characterized in that: The lower cover (3) is provided with a first card slot (31) and a second card slot (32), and the first card slot (31) and the second card slot (32) are both fitted with the ends of the first worm gear (53) and the second worm gear (54).

5. The cutting tool with accurate positioning function according to claim 1, characterized in that: The rotating structure (61) comprises a ring cover plate (611), the inner ring of the ring cover plate (611) is clamped with the outer ring of the connecting block (612), the top of the connecting block (612) is threadedly connected to the worm (52), the ring cover plate (611) is connected and fixed to the rotating block (613), and the clamping structure (62) is arranged inside the rotating block (613).

6. A cutting tool with accurate positioning function according to claim 5, characterized in that: The clamping structure (62) comprises symmetrically arranged clamping rods (621), a first elastic member (622) is arranged between the clamping rods (621), the clamping rods (621) are slidably clamped with sliding holes provided in the rotating block (613), and the opposite ends of the clamping rods (621) are clamped with clamping holes (33) provided in the lower cover body (3).

7. The cutting tool with accurate positioning function according to claim 1, characterized in that: The marking structure (63) comprises a marking pen (633), wherein the marking pen (633) is slidably connected to a symmetrically arranged guide rod (632), one end of the guide rod (632) is connected to a rotating rod (631), and both ends of the rotating rod (631) are rotatably connected to a rotating block (613) with rotating holes symmetrically provided therein.

8. A cutting tool with accurate positioning function according to claim 7, characterized in that: The marking pen (633) includes a liquid storage rod (6331), a second elastic member (6332) is arranged at one end of the liquid storage rod (6331), the lower end of the second elastic member (6332) is connected to the liquid baffle plate (6333), the liquid storage rod (6331) at the lower end of the liquid baffle plate (6333) is provided with a liquid outlet, the lower end of the liquid baffle plate (6333) is connected to the marking head (6334), and the marking head (6334) is slidably connected to the liquid outlet.

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