Threaded tool with tool bit convenient to replace

Abstract

The utility model belongs to the technical field of threaded tools, particularly relates to a threaded tool with a tool bit convenient to replace, and aims to solve the problem that an existing tool bit is low in replacement efficiency, according to the scheme, the threaded tool comprises the tool bit, a connecting rod is connected to the upper portion of the tool bit, a threaded rod is fixed to the top end of the connecting rod, and a tool bar is arranged outside the threaded rod in a sleeved mode. A limiting mechanism is arranged on the outer wall of the cutter bar; the limiting mechanism comprises a fixing plate, the fixing plate is fixed to the outer wall of the cutter bar, the connecting rod is connected with the cutter bar through the threaded rod, so that the cutter head can be rapidly disassembled and assembled, meanwhile, a penetrating-out block sliding out of the interior of a fixing shell fixed by the fixing plate penetrates into a limiting hole formed in the bearing plate, and therefore the limiting and stabilizing effects are achieved; and dislocation of the connecting rod and the cutter bar in the rotating process is avoided, the connecting stability is improved, the penetrating-out block can be rapidly driven to penetrate into and out of the limiting hole by shifting the attaching plate, and the disassembly and assembly convenience and efficiency are improved.

Description

Technical Field

[0001] The utility model relates to a thread cutter, in particular to a thread cutter with a convenient cutter head replacement, belonging to the technical field of thread cutters. Background Art

[0002] Threaded connection or fixing method is widely used in machinery and industrial equipment, so corresponding thread tools are needed to process and shape the required thread texture. There are many types of tools for processing various threads, which are generally composed of a tool handle and a tool head.

[0003] In the prior art, a tool with a replaceable cutter head, such as that disclosed in Publication No. CN213530799U, features a tool shank with a threaded hole above a flat surface. A set screw is threaded into the hole, with the bottom end of the set screw abutting the flat surface while the top end of the set screw extends into the tool shank. This compresses the set screw against the oblate platform, further restricting the tool head's rotation and preventing the curved surface from separating from the convex groove. Because the set screw serves only a compression function and requires minimal precision, the threaded hole can be manually drilled on a bench drill, further reducing processing costs.

[0004] However, in the implementation of relevant technologies, it was found that the tool with a replaceable cutter head designed as described above has the following problems: although the cutter head is disassembled and assembled by the cooperation of components such as fastening screws in the prior art, during actual use, when the cutter head is replaced, the fastening screws need to be adjusted by tools, which is too troublesome and the disassembly and assembly efficiency is slow. In view of this, a threaded tool with easy cutter head replacement is provided to overcome the above defects. Utility Model Content

[0005] The utility model provides a thread cutter with easy-to-replace cutter head to solve the above-mentioned problem that when replacing the cutter head, the fastening screw needs to be adjusted by tools, which is too troublesome and has low disassembly and assembly efficiency.

[0006] The utility model achieves the above-mentioned purpose through the following technical solutions: a threaded tool with a conveniently replaceable cutter head, comprising a cutter head, a connecting rod connected to the upper portion of the cutter head, a threaded rod fixed to the top end of the connecting rod, a cutter rod sheathed on the outer portion of the threaded rod, and a limiting mechanism provided on the outer wall of the cutter rod;

[0007] The limiting mechanism includes a fixing plate, which is fixed to the outer wall of the knife rod, and a fixing shell is fixed to the bottom end of the fixing plate, a penetration block is slidably connected to the inside of the fixed shell, and a fitting plate is fixed to the outer wall of one end of the penetration block that passes through the outside of the fixed shell, a supporting plate is fixed to the outer wall of the connecting rod, and a limiting hole is provided at the top of the supporting plate corresponding to the position of the penetration block.

[0008] As a further solution of the present invention: the knife rod is threadedly connected to the threaded rod, and the knife rod is fixedly connected to the fixing plate.

[0009] As a further solution of the present invention: the outer dimensions of the penetration block are consistent with the outer dimensions of the limiting hole, and a sliding structure is formed between the penetration block and the fixed shell.

[0010] As a further solution of the present invention: a positioning mechanism is provided inside the supporting plate, and the positioning mechanism includes a pull block, the pull block is provided outside the supporting plate, and a connecting rod is fixed to one end of the pull block, and a spring is sleeved on the outside of the end of the connecting rod that passes through the supporting plate, and a positioning block is fixed to the end of the connecting rod that passes through the limiting hole.

[0011] As a further solution of the present invention: the positioning mechanism further includes a positioning hole, the positioning hole is opened on the inner wall of the penetration block, and a through hole is opened inside the pulling block.

[0012] As a further solution of the present invention: a sliding structure is formed between the positioning block and the carrying plate, and the outer dimensions of the positioning block are consistent with the outer dimensions of the positioning hole.

[0013] As a further solution of the present invention: the connecting rod penetrates into the interior of the spring, and a sliding structure is formed between the spring and the supporting plate.

[0014] The beneficial effects of the utility model are as follows: the connecting rod is connected to the knife rod via the threaded rod, so that the knife head can be quickly disassembled and assembled, and at the same time, the penetration block sliding out of the fixed shell fixed by the fixed plate penetrates into the limiting hole provided in the bearing plate, thereby playing a limiting and stabilizing effect, avoiding misalignment of the connecting rod and the knife rod during the rotation process, improving the connection stability, and the penetration block can be quickly driven to penetrate into the penetration limiting hole by toggling the bonding plate, thereby improving the convenience and efficiency of disassembly and assembly;

[0015] The through hole makes it easy for fingers to pull the pulling block to drive the connecting rod to compress the spring inside the reserved groove of the supporting plate, allowing the positioning block to penetrate the supporting plate. When the penetrating block penetrates the limiting hole, the pulling block is released, and the connecting rod is pushed back to its original position by the elasticity of the spring, allowing the positioning block to penetrate the positioning hole, which has a limiting effect on the positioning block. When disassembling and assembling, just pull the pulling block, which improves the stable connection between the connecting rod and the knife rod and facilitates disassembly and assembly. 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 threaded rod structure of the utility model;

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

[0019] Figure 4 This is a schematic diagram of the spring structure of the utility model.

[0020] In the figure: 1. Cutting head; 2. Connecting rod; 3. Threaded rod; 4. Cutting rod; 5. Limiting mechanism; 501. Fixing plate; 502. Fixing shell; 503. Penetrating block; 504. Load-bearing plate; 505. Limiting hole; 506. Laminating plate; 6. Positioning mechanism; 601. Pulling block; 602. Connecting rod; 603. Spring; 604. Positioning block; 605. Positioning hole; 606. Through hole. DETAILED DESCRIPTION

[0021] 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

[0022] like Figures 1 to 4 As shown, a threaded tool with easy tool head replacement includes a tool head 1, a connecting rod 2 is connected to the top of the connecting rod 2, a threaded rod 3 is fixed to the top of the connecting rod 2, a tool rod 4 is sleeved on the outside of the threaded rod 3, and a limiting mechanism 5 is provided on the outer wall of the tool rod 4; the limiting mechanism 5 includes a fixing plate 501, the fixing plate 501 is fixed to the outer wall of the tool rod 4, a fixing shell 502 is fixed to the bottom end of the fixing plate 501, a penetration block 503 is slidably connected to the inside of the fixing shell 502, a fitting plate 506 is fixed to the outer wall of one end of the penetration block 503 that penetrates the outside of the fixed shell 502, a bearing plate 504 is fixed to the outer wall of the connecting rod 2, a limiting hole 505 is provided on the top of the bearing plate 504 corresponding to the position of the penetration block 503, and the tool rod 4 and The threaded rod 3 is threadedly connected, the knife rod 4 is fixedly connected to the fixed plate 501, the outer dimensions of the protruding block 503 are consistent with the outer dimensions of the limiting hole 505, and a sliding structure is formed between the protruding block 503 and the fixed shell 502; the connecting rod 2 is connected to the knife rod 4 via the threaded rod 3, so that the cutter head 1 can be quickly disassembled and assembled, and at the same time, the protruding block 503 that slides out from the fixed shell 502 fixed by the fixed plate 501 is inserted into the limiting hole 505 opened on the supporting plate 504, thereby playing a limiting and stabilizing effect, avoiding dislocation of the connecting rod 2 and the knife rod 4 during rotation, and improving the connection stability. By tossing the bonding plate 506, the protruding block 503 can be quickly driven to penetrate into and out of the limiting hole 505, thereby improving the convenience and efficiency of disassembly and assembly. Example 2

[0023] In addition to all the technical features of the first embodiment, the present embodiment also includes: a positioning mechanism 6 is provided inside the supporting plate 504, the positioning mechanism 6 includes a pull block 601, the pull block 601 is provided outside the supporting plate 504, one end of the pull block 601 is fixed with a connecting rod 602, the end of the connecting rod 602 that penetrates the supporting plate 504 is sleeved with a spring 603, the end of the connecting rod 602 that penetrates the limiting hole 505 is fixed with a positioning block 604, the positioning mechanism 6 also includes a positioning hole 605, the positioning hole 605 is provided on the inner wall of the penetration block 503, a through hole 606 is provided inside the pull block 601, a sliding structure is formed between the positioning block 604 and the supporting plate 504, and the outer size of the positioning block 604 is 1 / 4". The dimensions of the connecting rod 602 are consistent with the outer dimensions of the positioning hole 605, the connecting rod 602 passes through the inside of the spring 603, and a sliding structure is formed between the spring 603 and the supporting plate 504; the through hole 606 makes it easy for the fingers to pull the pulling block 601 to drive the connecting rod 602 to compress the spring 603 inside the reserved groove of the supporting plate 504, so that the positioning block 604 can pass through the supporting plate 504, and when the block 503 passes through the limiting hole 505, the pulling block 601 is released, and the spring 603 elastically pushes the connecting rod 602 to reset so that the positioning block 604 can pass through the positioning hole 605, which has a limiting effect on the positioning block 604. When disassembling and assembling, just pull the pulling block 601, which improves the stable connection between the connecting rod 2 and the knife rod 4 and facilitates disassembly and assembly.

[0024] Working principle: The cutter head 1 can be quickly assembled with the cutter rod 4 through the connecting rod 2 and the threaded rod 3. The fitting plate 506 is moved to drive the penetration block 503 to slide along the fixed shell 502. The fixed shell 502 is fixed on the fixed plate 501, thereby stably supporting the fixed shell 502, allowing the penetration block 503 to penetrate into the limiting hole 505 of the supporting plate 504 for limiting, to avoid dislocation of the cutter head 1 and the cutter rod 4 during rotation. Insert your finger into the through hole 606 of the pull block 601 and pull it, allowing the connecting rod 602 to drive the positioning block 604 to penetrate into the supporting plate 504, allowing the penetration block 503 to enter the limiting hole 505, and then release the pull block 601. Under the push of the spring 603, the connecting rod 602 pushes the positioning block 604 to penetrate into the positioning hole 605, further improving the stability of the connection between the connecting rod 2 and the cutter rod 4, and enabling quick disassembly and assembly.

[0025] 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.

[0026] 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 threading tool with an easily replaceable cutter head, comprising a cutter head (1), characterized in that: A connecting rod (2) is connected to the top of the cutter head (1), and a threaded rod (3) is fixed to the top of the connecting rod (2). A cutter rod (4) is sleeved on the outside of the threaded rod (3), and a limiting mechanism (5) is provided on the outer wall of the cutter rod (4). The limiting mechanism (5) includes a fixing plate (501), the fixing plate (501) is fixed to the outer wall of the knife rod (4), and a fixing shell (502) is fixed to the bottom end of the fixing plate (501), a penetration block (503) is slidably connected to the inside of the fixing shell (502), and a fitting plate (506) is fixed to the outer wall of one end of the penetration block (503) that penetrates the outside of the fixing shell (502), and a bearing plate (504) is fixed to the outer wall of the connecting rod (2), and a limiting hole (505) is provided at the top end of the bearing plate (504) corresponding to the position of the penetration block (503).

2. A threading tool with an easily replaceable cutter head according to claim 1, characterized in that: The knife rod (4) is threadedly connected to the threaded rod (3), and the knife rod (4) is fixedly connected to the fixed plate (501).

3. A threading tool with an easily replaceable cutter head according to claim 1, characterized in that: The outer dimensions of the penetration block (503) match those of the limiting hole (505), and a sliding structure is formed between the penetration block (503) and the fixed shell (502).

4. A threading tool with an easily replaceable cutter head according to claim 1, characterized in that: A positioning mechanism (6) is provided inside the supporting plate (504), and the positioning mechanism (6) includes a pull block (601). The pull block (601) is provided outside the supporting plate (504), and a connecting rod (602) is fixed to one end of the pull block (601). A spring (603) is sleeved on the outside of one end of the connecting rod (602) that penetrates into the supporting plate (504), and a positioning block (604) is fixed to one end of the connecting rod (602) that penetrates into the limiting hole (505).

5. A threading tool with an easily replaceable cutter head according to claim 4, characterized in that: The positioning mechanism (6) further comprises a positioning hole (605), wherein the positioning hole (605) is provided on the inner wall of the penetration block (503), and a through hole (606) is provided inside the pull block (601).

6. A threading tool with an easily replaceable cutter head according to claim 5, characterized in that: A sliding structure is formed between the positioning block (604) and the supporting plate (504), and the outer dimensions of the positioning block (604) are consistent with the outer dimensions of the positioning hole (605).

7. The thread cutter with easily replaceable cutter head according to claim 4, characterized in that: The connecting rod (602) penetrates into the interior of the spring (603), and a sliding structure is formed between the spring (603) and the supporting plate (504).

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