Contour cutter with cutter jumping prevention function

Abstract

The utility model belongs to the technical field of machining cutters, and particularly relates to a contour cutter with a cutter jumping prevention function, aiming at the existing cutter jumping problem, the contour cutter comprises a clamping rod, a cutter bar is connected below the clamping rod, a cutter head is fixed at the bottom end of the cutter bar, and an abutting mechanism is arranged outside the clamping rod; when the clamping rod is clamped by a power end or a clamp, the rotating rod is pressed to be located in the placement groove, the rotating rod and the bottom end penetrate into the limiting groove through supporting of the supporting shaft, the limiting rod penetrates through the limiting hole and the positioning hole, and the rotating rod is pressed to be located in the placement groove. The abutting mechanism can be rapidly disassembled and assembled to improve the convenience, meanwhile, the abutting cylinder abuts against the upper portion of an object to be machined, the contact face between the abutting mechanism and the object is increased in the machining process, the stability is improved, and the situation of tool jumping caused by deviation is avoided.

Description

Technical Field

[0001] The utility model relates to a contour knife, in particular to a contour knife with an anti-jump knife function, belonging to the technical field of mechanical processing tools. Background Art

[0002] Contouring refers to cutting the workpiece with the peripheral side edge of a cylindrical milling cutter to form a contour of a certain size and shape. Milling the outer contour of the workpiece is usually done with a contour milling cutter made of high-speed steel or carbide. It has broad application prospects, especially in the fields of electronic products and industrialization.

[0003] In the prior art, a contour tool, such as that disclosed in Publication No. CN216758317U, features multiple asymmetrical blades. The angles between adjacent sub-blades within the first, second, third, and fourth blades are different, resulting in a different cutting force wave function for each sub-blade. Consequently, the cutting force wave function is based on one tool rotation as a time period (rather than one blade rotation as a cycle). This allows the roughly equal amount of excitation energy to be dispersed across a greater number of frequencies. In other words, within the same time period, the number of times a part is struck with roughly the same force is reduced. This, in turn, reduces the amplitude of each frequency, dispersing the excitation energy and reducing the probability of resonance. This prevents chatter marks and improves product yield and processing efficiency.

[0004] However, in the implementation of relevant technologies, it was found that the contour tool designed above has the following problems: in the prior art, although the amplitude is reduced to avoid the generation of knife marks by setting multiple blades, during use, when the blade contacts the object to be processed, if the object is hard and the blade cannot break it immediately, the blade may jump due to the influence of inertia. In view of this, a contour tool with an anti-jumping function is provided to overcome the above defects. Utility Model Content

[0005] The utility model provides a contour knife with an anti-jumping function to solve the problem that if the blade cannot cut through a hard object immediately, the blade may jump due to the influence of inertia.

[0006] The utility model achieves the above-mentioned object through the following technical solutions: a contour knife with an anti-jump knife function, comprising a clamping rod, a knife rod is connected to the bottom of the clamping rod, and a knife head is fixed to the bottom end of the knife rod, and a resistance mechanism is provided on the outside of the clamping rod;

[0007] The interference mechanism includes a seating groove, which is provided on the outer wall of the clamping rod, and a rotating rod is rotatably connected inside the seating groove. A support shaft is passed through the interior of the rotating rod located at one end of the seating groove, and a limiting rod is fixed at one end of the outer wall of the rotating rod away from the support shaft. A interference cylinder is provided on the outside of the tool rod, and a limiting groove is provided on the outer wall of the interference cylinder corresponding to the position of the rotating rod, and a limiting hole is provided inside the limiting groove corresponding to the position of the limiting rod, and a positioning hole is provided on the outer wall of the tool rod corresponding to the position of the limiting hole.

[0008] As a further solution of the present invention: the rotating rod forms a rotating structure through the support shaft and the clamping rod, and the rotating rod is tightly fitted with the contact cylinder.

[0009] As a further solution of the present invention: the limiting hole is communicated with the positioning hole, and the outer dimensions of the limiting hole are consistent with the outer dimensions of the limiting rod.

[0010] As a further solution of the present invention: a limiting mechanism is provided below the resistance cylinder, and the limiting mechanism includes a connecting rod, which is fixed to the bottom end of the resistance cylinder, and a sleeve is provided below the connecting rod, and a telescopic rod is passed through the bottom end of the sleeve.

[0011] As a further solution of the present invention: the limiting mechanism also includes a resistance ring, which is arranged below the telescopic rod, and a sliding groove is provided at the top of the resistance ring corresponding to the position of the telescopic rod, and the telescopic rod is inserted into the resistance tube and a spring is installed inside.

[0012] As a further solution of the present invention: the telescopic rod passes through the interior of the sliding groove, and a sliding structure is formed between the telescopic rod and the interference ring.

[0013] As a further solution of the present invention: the sleeve forms an elastic structure with the telescopic rod through the spring, and the sleeve and the contact ring form a sliding structure.

[0014] The beneficial effects of the utility model are as follows: when the power end or the clamp clamps the clamping rod, the rotating rod is pressed to be located in the placement groove, and the bottom end of the rotating rod is allowed to pass through the limiting groove through the support of the support shaft, and the limiting rod is allowed to pass through the limiting hole and the positioning hole, and then pass through the interference cylinder and the tool rod in sequence and be positioned, so that the interference mechanism can be quickly disassembled and assembled to improve convenience, and at the same time, the interference cylinder is allowed to interfere with the top of the object to be processed, thereby increasing the contact surface with the object during the processing process, thereby improving stability and avoiding the situation where the tool jumps due to deviation;

[0015] The top of the sleeve is fixed to the resistance tube via a connecting rod, and a telescopic rod is connected to the inside via a spring. The elastic expansion and contraction of the spring makes it suitable for the resistance ring and the resistance tube to clamp objects of different thicknesses, thereby improving applicability and comprehensiveness. In conjunction with the resistance and limitation of the sleeve on the object, it can play a limiting role in the processing process to avoid offset and tool jumping. When in the punching operation, the resistance ring contacts the surface of the object, and the spring contracts to allow the cutter head to perform the punching operation. In conjunction with the universal wheel at the bottom end of the telescopic rod and the rotating engaged sliding groove, the stability of the punching operation is improved to avoid limitation or shaking. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the tool bar structure of the utility model;

[0018] Figure 3 This is a schematic diagram of the limit groove structure of the utility model;

[0019] Figure 4 This is a schematic diagram of the limit rod structure of the utility model;

[0020] Figure 5 This is a schematic diagram of the sleeve structure of the utility model;

[0021] Figure 6 This is a schematic diagram of the spring structure of the utility model.

[0022] In the figure: 1. Clamping rod; 2. Cutting rod; 3. Cutting head; 4. Interference mechanism; 401. Receiving groove; 402. Rotating rod; 403. Support shaft; 404. Limiting groove; 405. Limiting hole; 406. Limiting rod; 407. Positioning hole; 408. Interference cylinder; 5. Limiting mechanism; 501. Sleeve; 502. Connecting rod; 503. Telescopic rod; 504. Interference ring; 505. Sliding groove; 506. Spring. DETAILED DESCRIPTION

[0023] 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 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 making creative efforts are within the scope of protection of the present invention. Example 1

[0024] like Figures 1 to 6As shown, a contour knife with an anti-jumping knife function includes a clamping rod 1, a knife rod 2 is connected to the bottom of the clamping rod 1, a knife head 3 is fixed to the bottom end of the knife rod 2, and a resistance mechanism 4 is arranged on the outside of the clamping rod 1; the resistance mechanism 4 includes a mounting groove 401, the mounting groove 401 is opened on the outer wall of the clamping rod 1, and the interior of the mounting groove 401 is rotatably connected to a rotating rod 402, and the rotating rod 402 is located at one end of the mounting groove 401 and a support shaft 403 is passed through the interior, and a limiting rod 406 is fixed to one end of the outer wall of the rotating rod 402 away from the support shaft 403, and a resistance cylinder 408 is provided on the outside of the knife rod 2, and a limiting groove 404 is opened on the outer wall of the resistance cylinder 408 corresponding to the position of the rotating rod 402, and a limiting hole 405 is opened in the limiting groove 404 corresponding to the position of the limiting rod 406, and a positioning hole 4 is opened on the outer wall of the knife rod 2 corresponding to the limiting hole 405 07, the rotating rod 402 forms a rotating structure with the clamping rod 1 through the support shaft 403, the rotating rod 402 is tightly fitted with the interference cylinder 408, the limiting hole 405 is connected with the positioning hole 407, and the outer dimensions of the limiting hole 405 are consistent with the outer dimensions of the limiting rod 406; when the power end or the clamp clamps the clamping rod 1, the rotating rod 402 is pressed into the placement groove 401, and the rotating rod 402 is supported by the support shaft 403 to allow the bottom end to pass through the limiting groove 404, and the limiting rod 406 is allowed to pass through the limiting hole 405 and the positioning hole 407, and pass through the interference cylinder 408 and the tool rod 2 in turn and be positioned, which can improve the convenience of quick disassembly and assembly of the interference mechanism 4, and at the same time allow the interference cylinder 408 to interfere with the top of the object to be processed, thereby increasing the contact surface with the object during the processing and thus improving stability, and avoiding the situation where the tool jumps due to offset. Example 2

[0025] In addition to all the technical features of the first embodiment, the present embodiment also includes: a limiting mechanism 5 is provided below the interference cylinder 408, the limiting mechanism 5 includes a connecting rod 502, the connecting rod 502 is fixed to the bottom end of the interference cylinder 408, a sleeve 501 is provided below the connecting rod 502, a telescopic rod 503 is passed through the bottom end of the sleeve 501, the limiting mechanism 5 also includes a conflict ring 504, the conflict ring 504 is provided below the telescopic rod 503, a sliding groove 505 is provided at the top of the conflict ring 504 corresponding to the position of the telescopic rod 503, the telescopic rod 503 is inserted into the interior of the interference cylinder 408 and a spring 506 is installed, the telescopic rod 503 is inserted into the interior of the sliding groove 505, a sliding structure is formed between the telescopic rod 503 and the conflict ring 504, and the sleeve 501 is connected to the contact ring 504 through the spring 506. An elastic structure is formed between the telescopic rods 503, and a sliding structure is formed between the sleeve 501 and the interference ring 504; the top end of the sleeve 501 is fixed on the interference tube 408 via the connecting rod 502, and the interior is connected to the telescopic rod 503 via a spring 506. The elastic expansion and contraction of the spring 506 is suitable for the interference ring 504 and the interference tube 408 to clamp objects of different thicknesses, thereby improving applicability and comprehensiveness. In conjunction with the interference and limitation of the sleeve 501 on the object, it can play a limiting role in the processing process to avoid offset and tool jumping. When in the punching operation, the interference ring 504 contacts the surface of the object, and the spring 506 contracts to allow the cutter head 3 to perform the punching operation. In conjunction with the universal wheel at the bottom end of the telescopic rod 503 and the rotating engaged sliding groove 505, the stability of the punching operation is improved to avoid limitation or shaking.

[0026] Working principle: The clamping rod 1, the tool rod 2 and the tool head 3 form a tool. The clamping rod 1 is used to connect with the power end or the fixture. The rotating rod 402 rotates inside the placement groove 401 through the support shaft 403. When connected, the rotating rod 402 is constrained and enters the limiting groove 404. The limiting rod 406 is inserted into the contact cylinder 408 through the limiting hole 405 and inserted into the tool rod 2 through the positioning hole 407 for fixation, so that the tool rod 2 can be quickly disassembled and assembled with the contact cylinder 408. The contact cylinder 408 contacts the object when the tool is working, thereby increasing the contact surface to avoid tool jumping. The sleeve 501 fixed by the contact cylinder 408 through the connecting rod 502 elastically pushes the telescopic rod 503 through the spring 506, so that the contact ring 504 fits the bottom end of the object, and the sleeve 501 contacts the wall side of the object, thereby forming a limit to further improve the stability of the processing process. It is suitable for processing objects of different thicknesses through the spring 506. If it is in the punching work, the contact ring 504 contacts the surface of the object, and the spring 506 is compressed to perform the punching operation, and cooperates with the telescopic rod 503 and the universal wheel to slide along the sliding groove 505, thereby improving the stability of the punching and avoiding deviation and tool jumping.

[0027] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0028] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A contour knife with an anti-jump knife function, comprising a clamping rod (1), characterized in that: A knife rod (2) is connected to the bottom of the clamping rod (1), and a knife head (3) is fixed to the bottom end of the knife rod (2). A resistance mechanism (4) is provided on the outside of the clamping rod (1); The interference mechanism (4) includes a placement groove (401), the placement groove (401) is provided on the outer wall of the clamping rod (1), and the placement groove (401) is rotatably connected to a rotating rod (402), a support shaft (403) is passed through the interior of the rotating rod (402) at one end of the placement groove (401), and a limiting rod (406) is fixed to one end of the outer wall of the rotating rod (402) away from the support shaft (403), the outer surface of the knife rod (2) is provided with a interference cylinder (408), and a limiting groove (404) is provided on the outer wall of the interference cylinder (408) at a position corresponding to the rotating rod (402), and a limiting hole (405) is provided inside the limiting groove (404) at a position corresponding to the limiting rod (406), and a positioning hole (407) is provided on the outer wall of the knife rod (2) at a position corresponding to the limiting hole (405).

2. The contour knife with anti-jumping function according to claim 1, characterized in that: The rotating rod (402) forms a rotating structure through the support shaft (403) and the clamping rod (1), and the rotating rod (402) and the abutment cylinder (408) are tightly fitted.

3. The contour knife with anti-jumping function according to claim 1, characterized in that: The limiting hole (405) is communicated with the positioning hole (407), and the outer dimensions of the limiting hole (405) are consistent with the outer dimensions of the limiting rod (406).

4. The contour knife with anti-jumping function according to claim 1, characterized in that: A limiting mechanism (5) is provided below the abutment tube (408), and the limiting mechanism (5) comprises a connecting rod (502). The connecting rod (502) is fixed to the bottom end of the abutment tube (408), and a sleeve (501) is sleeved below the connecting rod (502). A telescopic rod (503) extends from the bottom end of the sleeve (501).

5. The contour knife with anti-jumping function according to claim 4, characterized in that: The limiting mechanism (5) further comprises a resistance ring (504), which is arranged below the telescopic rod (503), and a sliding groove (505) is provided at the top of the resistance ring (504) corresponding to the position of the telescopic rod (503), and a spring (506) is installed inside the resistance cylinder (408) when the telescopic rod (503) is inserted into the resistance cylinder (408).

6. The contour knife with anti-jumping function according to claim 5, characterized in that: The telescopic rod (503) passes through the interior of the sliding groove (505), and a sliding structure is formed between the telescopic rod (503) and the abutment ring (504).

7. The contour knife with anti-jumping function according to claim 5, characterized in that: The sleeve (501) forms an elastic structure with the spring (506) and the telescopic rod (503), and a sliding structure is formed between the sleeve (501) and the abutment ring (504).

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