Composite tool with replaceable blade

Abstract

The utility model belongs to the technical field of cutters, particularly relates to a compound cutter with a replaceable blade, and aims to solve the problem of inconvenience in replacement in the prior art, the compound cutter comprises a connecting rod, a cutter bar penetrates out of the connecting rod, a cutter head is fixed at one end, penetrating out of the connecting rod, of the cutter bar, and a mounting mechanism is arranged outside the connecting rod; the mounting mechanism comprises a placement groove, the placement groove is formed in the outer wall of the connecting rod, a rotating rod is rotationally connected into the placement groove, a through hole is formed in the inner wall of the rotating rod, the rotating rod rotates on the outer wall of the supporting rod through the through hole so as to penetrate into the placement groove to be limited, meanwhile, the rotating rod is axially inserted into the positioning hole, and the rotating rod can rotate in the placement groove. The sleeve ring in threaded connection with the connecting rod is matched, the rotating rod is closed for pressing after the position is adjusted, the tool bar and the tool bit can be conveniently and rapidly disassembled and assembled, the limiting rod is matched to prevent the tool bar from loosening under the driving of the power end after the tool bar is inserted into the connecting rod, and meanwhile the torque force can be improved.

Description

Technical Field

[0001] This utility model relates to a composite cutting tool, specifically a composite cutting tool with replaceable blades, belonging to the field of cutting tool technology. Background Technology

[0002] In machining, drills such as reamers and cutting tools such as reamers on machine tools are usually fixed on tool holders to achieve the installation and fixation of drills and cutting tools. In specific use, a tool holder equipped with a cutting insert constitutes a cutting tool to perform a certain cutting action; therefore, the entire cutting process usually requires the use of multiple cutting tools in combination.

[0003] In existing technologies, such as the multi-shape composite machining detachable insert type tool disclosed in announcement number CN212885087U, after completing a certain process, the M3 locking bolt can be released to remove the original insert, replace it with another insert, and then fix it again to perform other casting cutting work. There is no need to replace the entire tool; only the corresponding insert needs to be replaced. This avoids the waste problem of disposable inserts in current tool usage, greatly saving the usage and manufacturing costs of the tool body. Moreover, the tool body itself can remain fixed, which helps to improve machining stability and extend the service life of the tool body.

[0004] However, in implementing the relevant technology, the above-mentioned multi-shape composite machining detachable insert tool has the following problems: Although the existing technology can replace the tool inserts by using components such as M3 locking bolts, it requires multiple operations in actual use, and the replacement method is cumbersome and inefficient. In view of this, a composite tool with replaceable inserts is provided to overcome the above defects. Utility Model Content

[0005] This invention provides a composite cutting tool with replaceable blades to solve the problems of repeated operations and cumbersome replacement methods in practical use.

[0006] The present invention achieves the above objectives through the following technical solution: a composite cutting tool with replaceable blades, comprising a connecting rod, a cutting rod extending through the interior of the connecting rod, and a cutting head fixed at one end of the cutting rod extending through the connecting rod, and an installation mechanism provided on the exterior of the connecting rod;

[0007] The installation mechanism includes a mounting groove, which is formed on the outer wall of the connecting rod. A rotating rod is rotatably connected inside the mounting groove. A through hole is formed on the inner wall of the rotating rod, and a support rod extends through the through hole. A positioning hole is formed on the outer wall of the tool bar, and a limit rod is fixed at the top of the tool bar. A collar is slidably connected above the mounting groove on the outer wall of the connecting rod.

[0008] As a further improvement of this utility model: the rotating rod has an L-shaped structure, and the rotating rod forms a rotating structure with the support rod through the through hole.

[0009] As a further improvement of this utility model: the collar is threadedly connected to the connecting rod, and the collar is tightly fitted to the rotating rod.

[0010] As a further embodiment of this utility model: a reset mechanism is provided on one side of the rotating rod. The reset mechanism includes a fixed rod, which is fixed to the outer wall of the groove through which the rotating rod passes. A through rod extends out of the inside of the fixed rod, and an abutment plate is fixed at the position where the through rod passes through the fixed rod.

[0011] As a further embodiment of this utility model: the reset mechanism further includes a limiting ring, the limiting ring fixing the protruding rod located on the outer wall of one end of the fixed rod, and the end of the protruding rod that enters the fixed rod is connected to a spring.

[0012] As a further improvement of this utility model: the contact plate has a U-shaped structure, and the contact plate is tightly fitted to the knife bar.

[0013] As a further improvement of this utility model: the fixing rod forms an elastic structure with the spring and the through rod, and the fixing rod and the limiting ring form a sliding structure.

[0014] The beneficial effects of this utility model are: the rotating rod rotates on the outer wall of the support rod through the through hole, thereby entering the mounting groove for limiting. At the same time, the rotating rod is axially inserted into the positioning hole, and cooperates with the collar threaded to the connecting rod. After adjusting the position, the rotating rod is covered and pressed, which facilitates quick disassembly and assembly of the tool bar and the tool head. The limiting rod prevents the tool bar from loosening after being inserted into the connecting rod and driven by the power end. At the same time, it can improve the torque force.

[0015] The telescopic rod consists of a fixed rod and a through rod. The fixed rod is fixed to the outer wall of the rotating rod, and the contact plate of the through rod abuts against the tool bar. When the tool bar and the tool head are replaced, after the collar moves away from the rotating rod, the through rod is pushed by the spring elasticity, allowing it to slide along the fixed rod, thereby extending and allowing the axial direction of the rotating rod to disengage from the positioning hole, so that the tool bar and the tool head can automatically disengage, further improving the convenience of disassembly and assembly. The limiting ring prevents the through rod from excessively extending and disengaging. Attached Figure Description

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

[0017] Figure 2 This is a schematic diagram of the cutter head structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the through hole structure of this utility model;

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

[0020] Figure 5 This is a schematic diagram of the spring structure of this utility model.

[0021] In the diagram: 1. Connecting rod; 2. Tool holder; 3. Tool head; 4. Mounting mechanism; 401. Mounting groove; 402. Rotating rod; 403. Through hole; 404. Support rod; 405. Positioning hole; 406. Collar; 407. Limiting rod; 5. Reset mechanism; 501. Fixing rod; 502. Through rod; 503. Contact plate; 504. Limiting ring; 505. Spring. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example 1

[0023] like Figures 1 to 5 As shown, a composite cutting tool with replaceable blades includes a connecting rod 1, a blade holder 2 extending from the inside of the connecting rod 1, a blade head 3 fixed to one end of the blade holder 2 extending from the connecting rod 1, and a mounting mechanism 4 provided on the outside of the connecting rod 1. The mounting mechanism 4 includes a mounting groove 401, which is formed on the outer wall of the connecting rod 1. A rotating rod 402 is rotatably connected inside the mounting groove 401. A through hole 403 is formed on the inner wall of the rotating rod 402, and a support rod 404 extends through the through hole 403. A positioning hole 405 is formed on the outer wall of the blade holder 2, and a limit rod 407 is fixed to the top of the blade holder 2. A collar 406 is slidably connected above the mounting groove 401 on the outer wall of the connecting rod 1. The structure is L-shaped. The rotating rod 402 forms a rotating structure with the support rod 404 through the through hole 403. The collar 406 is threadedly connected to the connecting rod 1, and the collar 406 fits tightly with the rotating rod 402. The rotating rod 402 rotates on the outer wall of the support rod 404 through the through hole 403, thereby passing into the mounting groove 401 for limiting. At the same time, the rotating rod 402 is axially inserted into the positioning hole 405, cooperating with the collar 406 threadedly connected to the connecting rod 1. After adjusting the position, the rotating rod 402 is covered and pressed, which facilitates quick disassembly and assembly of the tool bar 2 and the tool head 3. The limiting rod 407 prevents the tool bar 2 from loosening after being inserted into the connecting rod 1 and driven by the power end, while also increasing the torque force. Example 2

[0024] In addition to all the technical features included in Embodiment 1, this embodiment also includes: a reset mechanism 5 provided on one side of the rotating rod 402; the reset mechanism 5 includes a fixed rod 501, which is fixed to the outer wall of the rotating rod 402 extending out of the mounting groove 401; a protruding rod 502 protrudes from the inside of the fixed rod 501; a contact plate 503 is fixed at the position where the protruding rod 502 protrudes from the fixed rod 501; the reset mechanism 5 also includes a limiting ring 504, which fixes the outer wall of one end of the protruding rod 502 inside the fixed rod 501; a spring 505 is connected to one end of the protruding rod 502 that enters the fixed rod 501; the contact plate 503 has a U-shaped structure and is tightly fitted to the knife bar 2; the fixed rod... 501 forms an elastic structure between the spring 505 and the through rod 502, and a sliding structure between the fixed rod 501 and the limiting ring 504. The fixed rod 501 and the through rod 502 form a telescopic rod. The fixed rod 501 is fixed to the outer wall of the rotating rod 402, and the contact plate 503 fixed to the through rod 502 abuts against the tool bar 2. When the tool bar 2 and the tool head 3 are replaced, after the collar 406 moves away from the position of the rotating rod 402, the through rod 502 is elastically pushed by the spring 505 to slide along the fixed rod 501, thereby extending and allowing the axial direction of the rotating rod 402 to disengage from the positioning hole 405, so that the tool bar 2 and the tool head 3 can automatically disengage, further improving the convenience of disassembly and assembly. The limiting ring 504 prevents the through rod 502 from excessively protruding and disengaging.

[0025] Working principle: The tool holder 2 and the tool head 3 are the main body of the composite tool insert, and are inserted into the connecting rod 1 through the limiting rod 407. The connecting rod 1 is clamped by the clamping end of the machine tool or other equipment. Through the mounting groove 401 and the support rod 404, the rotating rod 402 rotates through the through hole 403, and turns the collar 406 which is threaded to the connecting rod 1, thereby limiting the rotating rod 402 and inserting it into the positioning hole 405, which facilitates quick disassembly and assembly of the tool holder 2 and the tool head 3. The limiting rod 407 increases the torque force during rotation to prevent the tool holder 2 from loosening. When replacement is required, the position of the collar 406 is adjusted, so that under the elastic push of the spring 505, the through rod 502 and the contact plate 503 abut against the tool holder 2, and the fixing rod 501 pushes the rotating rod 402 to disengage from the positioning hole 405, which facilitates the automatic disassembly of the tool holder 2 and improves the ease of disassembly and assembly. The limiting ring 504 prevents the through rod 502 from disengaging excessively from the fixing rod 501.

[0026] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0027] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A composite cutting tool with replaceable blades, comprising a connecting rod (1), characterized in that: A blade (2) extends through the inside of the connecting rod (1), and a blade head (3) is fixed at one end of the blade (2) extending through the connecting rod (1). An installation mechanism (4) is provided on the outside of the connecting rod (1). The installation mechanism (4) includes a mounting groove (401), which is opened on the outer wall of the connecting rod (1). A rotating rod (402) is rotatably connected inside the mounting groove (401). A through hole (403) is opened on the inner wall of the rotating rod (402), and a support rod (404) passes through the through hole (403). A positioning hole (405) is opened on the outer wall of the knife bar (2), and a limit rod (407) is fixed at the top of the knife bar (2). A collar (406) is slidably connected above the mounting groove (401) on the outer wall of the connecting rod (1).

2. The composite cutting tool with replaceable blades according to claim 1, characterized in that: The rotating rod (402) has an L-shaped structure, and the rotating rod (402) forms a rotating structure with the support rod (404) through the through hole (403).

3. A composite cutting tool with replaceable blades according to claim 1, characterized in that: The collar (406) is threadedly connected to the connecting rod (1), and the collar (406) is tightly fitted with the rotating rod (402).

4. A composite cutting tool with replaceable blades according to claim 1, characterized in that: A reset mechanism (5) is provided on one side of the rotating rod (402). The reset mechanism (5) includes a fixed rod (501). The fixed rod (501) is fixed to the outer wall of the rotating rod (402) through the mounting groove (401). A through rod (502) extends out of the fixed rod (501). A contact plate (503) is fixed at the position where the through rod (502) extends out of the fixed rod (501).

5. A composite cutting tool with replaceable blades according to claim 4, characterized in that: The reset mechanism (5) further includes a limiting ring (504), which fixes the protruding rod (502) to the outer wall of one end of the fixed rod (501), and the end of the protruding rod (502) that passes through the fixed rod (501) is connected to a spring (505).

6. A composite cutting tool with replaceable blades according to claim 4, characterized in that: The contact plate (503) has a U-shaped structure and is tightly fitted to the knife bar (2).

7. A composite cutting tool with replaceable blades according to claim 5, characterized in that: The fixed rod (501) forms an elastic structure with the through rod (502) via the spring (505), and the fixed rod (501) forms a sliding structure with the limiting ring (504).

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