A reamer convenient to disassemble

Abstract

The utility model provides a reamer convenient to dismouting relates to mechanical equipment part technical field, including support column, support column has set up the clamping groove two, the clamping groove two is connected with the joint mechanism, the joint mechanism includes fixed post no.

Description

Technical Field

[0001] This utility model relates to the field of mechanical equipment parts technology, and in particular to a reamer that is easy to disassemble and assemble. Background Technology

[0002] A reamer is a finishing tool used for holes. It is mainly used to remove a small amount of material from pre-drilled, cast, or forged holes to obtain precise dimensions and high surface quality. It can effectively improve the dimensional accuracy of holes and significantly improve the surface roughness of the hole walls, making them smooth and flat. Reamers are particularly suitable for machining cylindrical or tapered holes. They are characterized by very small cutting volume. The hole wall is finished and calibrated by a calibration section to ensure the shape and position tolerance of the hole. It is usually performed after drilling or reaming and is a key finishing process for obtaining high-precision holes.

[0003] Existing reamers generally suffer from cumbersome and time-consuming disassembly and assembly processes. Many models of reamers require multiple special tools and repeated tightening or loosening of several locking bolts when connected to the machine tool spindle, which is laborious. The fit between the tool holder and the collet requires high precision; even slight deviations can affect the runout accuracy. As a result, reassembly after disassembly often requires a lot of time to readjust, which greatly affects processing efficiency and production continuity. After long-term use, the mating surfaces may develop slight corrosion or seizing, further increasing the difficulty of disassembly and placing higher demands on the operator's technical skills. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a reamer that is easy to assemble and disassemble.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a reamer that is easy to assemble and disassemble, comprising a support column, wherein the support column has a second slot, the second slot is connected to a locking mechanism, the locking mechanism comprises a second fixing column, the second fixing column is connected to a locking block, the end of the locking block near the second fixing column is connected to a first fixing column, the locking block is connected to a reamer mechanism, the reamer mechanism has a third slot, and the third slot is provided with a locking block.

[0006] In a preferred embodiment, the two ends of the fixing column are connected to the tungsten carbide cutter bar, and the tungsten carbide cutter bar has a slot.

[0007] In a preferred embodiment, the slot is provided with a spring, and the spring is connected to a support column.

[0008] In a preferred embodiment, the reamer mechanism includes a reamer blade, the reamer blade having a slot, and the reamer mechanism having a threaded groove.

[0009] In a preferred embodiment, the tungsten carbide cutter bar has a threaded groove on the side near the reamer mechanism.

[0010] In a preferred embodiment, a locking ring is connected to the first threaded groove, and a second threaded groove is connected to the end of the locking ring away from the first threaded groove.

[0011] In one preferred embodiment, the card block, fixing post one, and fixing post two are each provided in two sets.

[0012] Compared with the prior art, the advantages and positive effects of this utility model are as follows: This invention, when disassembling and assembling the reamer, compresses the spring by pushing the support column, reducing the included angle of the locking block, which facilitates the disassembly or connection of the reamer mechanism. After stopping the pushing, the spring returns to its original position, the locking block horizontally engages with the slot, and then the locking ring is tightened for reinforcement. Disassembly and assembly do not require complex tools and can be completed quickly by a single person, greatly shortening downtime, reducing precision loss, ensuring the stability of the machined hole diameter and surface quality, reducing reliance on operator skills, reducing labor intensity, improving production preparation efficiency, and adapting to the needs of flexible production of multiple varieties and small batches. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of a reamer that is easy to assemble and disassemble, as provided by this utility model.

[0014] Figure 2 A cross-sectional view of a reamer that is easy to assemble and disassemble, provided by this utility model.

[0015] Figure 3 This is a partial structural diagram of a reamer that is easy to assemble and disassemble, as provided by this utility model.

[0016] Figure 4 This is a partial structural cross-sectional view of a reamer that is easy to assemble and disassemble, as provided by this utility model.

[0017] Figure 5 A cross-sectional view of a snap-fit ​​structure for a reamer that is easy to assemble and disassemble, as provided by this utility model.

[0018] Legend: 1. Tungsten carbide tool holder; 11. Slot 1; 12. Support column; 121. Slot 2; 13. Snap-fit ​​mechanism; 131. Snap block; 132. Fixed column 1; 133. Fixed column 2; 14. Spring; 15. Threaded groove 1; 2. Reamer mechanism; 21. Reamer blade; 22. Hole slot; 23. Threaded groove two; 24. Slot three; 3. Locking ring. Detailed Implementation

[0019] 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.

[0020] Example 1 like Figure 1 - Figure 5 As shown, this utility model provides a technical solution: a reamer that is easy to assemble and disassemble, including a support column 12. The support column 12 has a second slot 121, and the second slot 121 is connected to a locking mechanism 13. When replacing the reamer mechanism 2, the support column 12 can be pushed towards the end of the tungsten carbide shank 1 away from the reamer mechanism 2, so that the support column 12 compresses the spring 14. The locking mechanism 13 includes a second fixing column 133, and a locking block 131 is connected to the second fixing column 133. The end of the locking block 131 near the second fixing column 133 is connected to a first fixing column 132. When the support column 12 is connected to the spring 14, the fixed column 133, which is connected to the support column 12 at both ends in the slot 121 of the support column 12, moves with the support column 12 toward the spring 14. This causes the locking block 131 connected to the fixed column 133 to tilt away from the spring 14. The two sets of locking blocks 131 perform the same operation, making the included angle between the two sets of locking blocks 131 smaller, which facilitates the engagement of the locking mechanism 13 and the reamer mechanism 2. The reamer mechanism 2 has a slot 24, and the locking block 131 is provided in the slot 24.

[0021] In this embodiment, when replacing the reamer mechanism 2, the support column 12 can be pushed through the slot 22 inside the reamer mechanism 2 to the end of the tungsten carbide cutter bar 1 away from the reamer mechanism 2. This causes the support column 12 to compress the spring 14. When the support column 12 moves towards the spring 14, the two ends of the fixed column 133, which are connected to the support column 12 at both ends in the slot 121 of the support column 12, move with the support column 12 towards the spring 14. This causes the locking block 131 connected to the fixed column 133 to tilt away from the spring 14. Both sets of locking blocks 131 perform the same operation, making the included angle between the two sets of locking blocks 131 smaller. This facilitates the reamer mechanism 2 moving away from or closer to the tungsten carbide cutter bar 1. After the reamer mechanism 2 is connected to the tungsten carbide cutter bar 1, the pushing of the support column 12 is stopped, causing the spring 14 to extend and drive the support column 12 away from the spring 14. The movement of the support column 12 causes the fixed column 133 to move, which in turn causes the locking block 131 to move, bringing the two sets of locking blocks 131 to a horizontal position. This allows the locking block 131 to engage with the locking groove 24 inside the reamer mechanism 2. After the reamer mechanism 2 engages with the locking mechanism 13, the locking ring 3 is tightened towards the reamer mechanism 2 via the threaded groove 15 and the threaded groove 23, strengthening the fixation. The above operation eliminates the need for complex tools and cumbersome steps when changing tools, allowing a single person to complete the process quickly. This greatly reduces downtime and effectively reduces the loss of precision caused by repeated disassembly and assembly, ensuring the dimensional stability and surface quality of the machined holes. At the same time, it reduces the over-reliance on the professional skills of operators, reduces labor intensity, and makes production preparation and off-line pre-adjustment more efficient. It is particularly suitable for the flexible production needs of multi-variety, small-batch production.

[0022] Example 2 like Figure 1 - Figure 5 As shown, the two ends of the fixing post 132 are connected to the tungsten carbide cutter bar 1. The tungsten carbide cutter bar 1 has a slot 11, and a spring 14 is provided in the slot 11. The spring 14 is connected to the support post 12. The reamer mechanism 2 includes a reamer blade 21, and the reamer blade 21 has a hole slot 22. The reamer mechanism 2 has a threaded groove 23. The tungsten carbide cutter bar 1 has a threaded groove 15 on the side close to the reamer mechanism 2. The threaded groove 15 is connected to a locking ring 3. The end of the locking ring 3 away from the threaded groove 15 is connected to the threaded groove 23. The locking block 131, the fixing post 132, and the fixing post 23 are all provided in two sets.

[0023] In this embodiment, the two ends of the fixed column 132 are fixedly connected to the tungsten carbide blade 1, serving as a stable base for the entire locking mechanism 13. A spring 14 providing reset force is installed in the slot 11 inside the tungsten carbide blade 1. One end of the spring 14 is connected to the bottom of the slot 11, and the other end is connected to the axially movable support column 12. The core of the reamer mechanism 2 is the reamer blade 21, which has a central slot 22 allowing the support column 12 to pass through. A threaded groove 23 for final locking is also provided on the outer edge of the reamer mechanism 2. Correspondingly, a threaded groove 15 is provided at the end of the tungsten carbide blade 1 near the reamer mechanism 2. After the locking step is completed, the locking is achieved. Ring 3, by screwing into threaded groove 15 and threaded groove 23, secures the tungsten steel tool holder 1 and the reamer mechanism 2 into a rigid whole, effectively preventing micro-movement and loosening during machining and ensuring machining accuracy. The core action of the entire mechanism relies on two symmetrically arranged sets of linkage components. Each set consists of a rotatable locking block 131, a fixed column 132 serving as a fixed fulcrum, and a fixed column 23 linked to the support column 12. The axial movement of the support column 12 is converted into the clamping and loosening action of the locking block 131 through the fixed column 233, thereby realizing the engagement and disengagement with the locking groove 24 inside the reamer mechanism 2. This makes tool replacement simple and quick, significantly improving work efficiency.

[0024] Working principle: like Figure 1 - Figure 5As shown, when replacing the reamer mechanism 2, the support column 12 can be pushed through the slot 22 inside the reamer mechanism 2 towards the end of the tungsten carbide handle 1 away from the reamer mechanism 2. This causes the support column 12 to compress the spring 14. When the support column 12 moves towards the spring 14, the two ends of the fixed column 133, which are connected to the support column 12 at both ends in the slot 121 of the support column 12, move with the support column 12 towards the spring 14. This causes the locking block 131 connected to the fixed column 133 to tilt away from the spring 14. Both sets of locking blocks 131 perform the same operation, making the included angle between the two sets of locking blocks 131 smaller. This facilitates the reamer mechanism 2 moving away from or closer to the tungsten carbide handle 1. After the reamer mechanism 2 is connected to the tungsten carbide handle 1, the pushing of the support column 12 is stopped. The spring 14 extends, causing the support column 12 to move away from the spring 14. The movement of the support column 12 causes the fixed column 133 to move, which in turn causes the locking block 131 to move, bringing the two sets of locking blocks 131 to a horizontal position. This allows the locking block 131 to engage with the locking groove 24 inside the reamer mechanism 2. After the reamer mechanism 2 engages with the locking mechanism 13, the locking ring 3 is tightened towards the reamer mechanism 2 via the threaded groove 15 and the threaded groove 23, strengthening the fixation. This operation eliminates the need for complex tools and cumbersome steps when changing tools, allowing a single person to complete the process quickly. This significantly reduces downtime and effectively minimizes the loss of precision caused by repeated disassembly and assembly, ensuring the dimensional stability and surface quality of the machined hole. Simultaneously, it reduces the skill requirements of operators. The over-reliance on professional skills reduces labor intensity and makes production preparation and off-line pre-adjustment more efficient, especially suitable for flexible production needs of multiple varieties and small batches. The two ends of the fixed column 132 are fixedly connected to the tungsten carbide cutter bar 1, serving as the stable base of the entire locking mechanism 13. In the slot 11 opened inside the tungsten carbide cutter bar 1, a spring 14 is provided to provide reset power. One end of the spring 14 is connected to the bottom of the slot, and the other end is connected to the axially movable support column 12. The core of the reamer mechanism 2 is the reamer blade 21, which has a hole 22 in its center that allows the support column 12 to pass through. On the outer edge of the reamer mechanism 2, a threaded groove 23 for final locking is also opened. Correspondingly, at the end of the tungsten carbide cutter bar 1 near the reamer mechanism 2, a threaded groove 23 is opened. The locking ring 3, after the engagement step is completed, screws into the threaded groove 15 and threaded groove 23 to fasten the tungsten steel tool holder 1 and the reamer mechanism 2 into a rigid whole, effectively preventing micro-movement and loosening during the machining process and ensuring machining accuracy. The core action of the entire mechanism relies on two sets of symmetrically arranged linkage components. Each set consists of a rotatable locking block 131, a fixed column 132 as a fixed fulcrum, and a fixed column 23 linked with the support column 12. The axial movement of the support column 12 is converted into the clamping and loosening action of the locking block 131 through the fixed column 233, thereby realizing the engagement and separation with the locking groove 24 inside the reamer mechanism 2, making tool replacement simple and quick, and significantly improving work efficiency.

[0025] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A reamer that is easy to assemble and disassemble, characterized in that, include: A support column (12) is provided with a second slot (121). The second slot (121) is connected to a locking mechanism (13). The locking mechanism (13) includes a second fixed column (133). The second fixed column (133) is connected to a locking block (131). The end of the locking block (131) near the second fixed column (133) is connected to a first fixed column (132). The locking block (131) is connected to a reamer mechanism (2). The reamer mechanism (2) is provided with a third slot (24). The third slot (24) contains a locking block (131).

2. A reamer that is easy to assemble and disassemble according to claim 1, characterized in that: The fixed column (132) is connected to the tungsten steel knife bar (1) at both ends, and the tungsten steel knife bar (1) is provided with a slot (11).

3. A reamer that is easy to assemble and disassemble according to claim 2, characterized in that: The slot 1 (11) is provided with a spring (14), and the spring (14) is connected to a support column (12).

4. A reamer that is easy to assemble and disassemble according to claim 1, characterized in that: The reamer mechanism (2) includes a reamer blade (21), the reamer blade (21) has a hole groove (22), and the reamer mechanism (2) has a threaded groove (23).

5. A reamer that is easy to assemble and disassemble according to claim 2, characterized in that: The tungsten steel cutter bar (1) has a threaded groove (15) on the side near the reamer mechanism (2).

6. A reamer for easy assembly and disassembly according to claim 5, characterized in that: The first threaded groove (15) is connected to a locking ring (3), and the end of the locking ring (3) away from the first threaded groove (15) is connected to the second threaded groove (23).

7. A reamer for easy assembly and disassembly according to claim 1, characterized in that: The card block (131), fixing post one (132), and fixing post two (133) are each provided in two sets.

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