A hole enlarging tool for micro-groove processing

Abstract

The utility model belongs to the technical field of reaming knives, and particularly relates to a reaming knives for micro-groove processing, and improves the problem that in actual use, the debris after reaming will fall into the hole, and the debris will accumulate at the bottom of the hole if it is not cleaned in time, and the accumulated debris may cause damage to the reaming cutter head and the cutting knife. Now the following scheme is proposed, including a knife block clamping block, a first reaming knife block is fixedly installed above the knife block clamping block, a first knife block mounting groove is opened inside the first reaming knife block, the first knife block mounting groove is installed on the outer wall of a limit mounting rod, a second reaming knife block is fixedly connected to the top of the limit mounting rod, a first reaming blade is fixedly connected to the top of the second reaming knife block, and a first chip feed port is fixedly connected below the first reaming blade. The utility model can ensure that the debris generated in the reaming process is discharged in a timely and smooth manner, avoid the accumulation of debris in the hole, and reduce the damage to the reaming cutter head and the cutting knife.

Description

Technical Field

[0001] The utility model relates to a reaming tool for micro-groove processing, in particular to a reaming tool for micro-groove processing, belonging to the technical field of reaming tools. Background Art

[0002] In the field of micro-groove processing, the use of reaming tools is indispensable. Reaming tools are usually made of cemented carbide or other high-performance materials, with excellent wear resistance and heat resistance, and better surface quality. This means that they can maintain cutting performance for a longer time, reduce the frequency of tool replacement, and improve production efficiency.

[0003] Currently, the cutting force generated by hole expansion operations in the machining industry is offset by the rigidity of the boring tool bar itself, resulting in a low tolerable cutting force during hole expansion processing. The tool can only match a smaller cutting speed, feed rate, and cutting depth, resulting in low processing efficiency.

[0004] A reaming tool with announcement number CN220837975U includes a reaming head equipped with a cutting knife, a reaming head guide section arranged at the front end of the reaming head in the forward direction, and a tool rod arranged at the rear end of the reaming head away from the forward direction; under the premise that the rigidity and bearing capacity of the tool rod do not change, the cutting speed, feed rate, cutting depth and processing efficiency can be improved.

[0005] In the above technical scheme, it is possible to improve the cutting speed, feed rate, cutting depth and processing efficiency without changing the bearing capacity of the tool rod stiffness. However, in actual use, the debris after hole expansion will fall into the hole. If it is not cleaned in time, the debris will accumulate at the bottom of the hole. The accumulated debris may cause damage to the hole expansion tool head and the cutting tool. For this reason, we provide a hole expansion tool for micro-groove processing. Utility Model Content

[0006] The utility model provides a reaming tool for micro-groove processing to solve the problem that in actual use, debris after hole expansion will fall into the hole, and if it is not cleaned in time, the debris will accumulate at the bottom of the hole, and the accumulated debris may cause damage to the reaming tool head and the cutting tool.

[0007] The utility model achieves the above-mentioned purpose through the following technical solutions: a reaming tool for micro-groove processing, comprising a tool block clamping block, a first reaming tool block is fixedly installed above the tool block clamping block, a first tool block mounting groove is opened inside the first reaming tool block, the first tool block mounting groove is installed on the outer wall of a limit mounting rod, and a second reaming tool block is fixedly connected to the top of the limit mounting rod;

[0008] The top of the second reaming tool block is fixedly connected to the first reaming blade, the bottom of the first reaming blade is fixedly connected to the first chip feed port, a first chip withdrawal groove is provided below the first chip feed port, the top periphery of the first reaming tool block is fixedly connected to the second reaming blade, the bottom of the second reaming blade is fixedly connected to the second chip feed port, a second chip withdrawal groove is provided below the second chip feed port.

[0009] As a further solution of the utility model: a limited position fixing block is fixedly installed below the knife block clamping block, and a mounting rod groove is opened inside the knife block clamping block.

[0010] As a further solution of the utility model: a limited mounting rod is fixedly installed inside the mounting rod groove, and a limited screw thread is provided on the outer wall of the lower end of the limited mounting rod.

[0011] As a further solution of the utility model: a fixing block mounting hole is provided inside the limiting fixing block, and the limiting screw thread and the fixing block mounting hole are threadedly connected.

[0012] As a further solution of the utility model: the upper end of the knife block clamping block is fixedly connected to the limiting rod, the lower end of the second hole expanding knife block is provided with a second knife block limiting groove, and the interior of the first hole expanding knife block is also provided with a first knife block limiting groove.

[0013] As a further solution of the utility model: the first blade block limiting groove is located on both sides of the first blade block installation groove, and the first blade block limiting groove is tightly fitted with the limiting rod.

[0014] As a further solution of the utility model: the second blade block limit groove is aligned with the first blade block limit groove, and the limit rod passes through the second blade block limit groove and the first blade block limit groove, and the size of the limit rod matches the size of the second blade block limit groove and the first blade block limit groove.

[0015] The beneficial effects of the utility model are:

[0016] 1. The utility model ensures the stability and reliability of the reaming tool structure through the cooperation of the limiting mounting rod, the limiting screw thread, the limiting fixing block and the limiting rod, improves the processing accuracy and the service life of the tool, and ensures that the chips generated during the reaming process are discharged in a timely and smooth manner through the design of the first chip inlet, the first chip return groove, the second chip inlet and the second chip return groove, thereby avoiding the accumulation of chips in the hole, reducing the damage rate, reducing the frequency of tool replacement by users, and improving production efficiency;

[0017] 2. The utility model allows each part to be replaced or repaired separately, which helps to reduce safety risks in the processing process, reduces maintenance costs, and improves efficiency. According to processing requirements, tool blocks of different sizes or shapes can be replaced to adapt to different reaming tasks, thereby enhancing the adaptability and flexibility of the reaming tool. By replacing reaming tools of different specifications, precise processing of different hole diameters can be achieved, which is convenient for users. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the limit installation rod of the utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the mounting rod slot and the fixing block mounting hole of the utility model;

[0021] Figure 4 This is a schematic diagram of the limiting groove structure of the second blade block of the utility model.

[0022] In the figure: 1. tool block clamping block; 2. first hole expanding tool block; 3. second hole expanding tool block; 4. first hole expanding blade; 5. first chip feed port; 6. first chip return groove; 7. second hole expanding blade; 8. second chip feed port; 9. second chip return groove; 10. limiting fixing block; 11. limiting mounting rod; 12. limiting screw thread; 13. first tool block mounting groove; 14. first tool block limiting groove; 15. mounting rod groove; 16. limiting rod; 17. second tool block limiting groove; 18. fixing block mounting hole. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. Embodiment 1

[0024] like Figures 1 to 4As shown, a reaming tool for micro-groove processing includes a tool block clamping block 1, a first reaming tool block 2 is fixedly installed above the tool block clamping block 1, a first tool block mounting groove 13 is opened inside the first reaming tool block 2, the first tool block mounting groove 13 is installed on the outer wall of a limiting mounting rod 11, a second reaming tool block 3 is fixedly connected to the top of the limiting mounting rod 11, a first reaming blade 4 is fixedly connected to the top of the second reaming tool block 3, a first reaming blade 4 is fixedly connected to the bottom of the first reaming blade 4, and a first chip feed port 5 is fixedly connected to the first reaming blade 4. A first chip withdrawal groove 6 is provided below the chip feed port 5, a second reaming blade 7 is fixedly connected to the outer periphery of the top end of the first reaming tool block 2, a second chip feed port 8 is fixedly connected below the second reaming blade 7, and a second chip withdrawal groove 9 is provided below the second chip feed port 8. By designing the first chip feed port 5, the first chip withdrawal groove 6, the second chip feed port 8 and the second chip withdrawal groove 9, it is possible to ensure that the debris generated during the reaming process is discharged in a timely and smooth manner, thereby avoiding the accumulation of debris in the hole and reducing damage to the reaming tool head and the cutting tool. Embodiment 2

[0025] In addition to all the technical features of the first embodiment, the present embodiment further includes: a limited fixing block 10 is fixedly installed below the knife block clamping block 1, a mounting rod groove 15 is provided inside the knife block clamping block 1, a limited mounting rod 11 is fixedly installed inside the mounting rod groove 15, and a limited screw thread 12 is provided on the outer wall of the lower end of the limited mounting rod 11. The cooperation of the limited mounting rod 11, the limited screw thread 12, the limited fixing block 10 and the limited rod 16 ensures the stability and reliability of the reaming tool structure, improves the processing accuracy and the service life of the tool, and a fixed block mounting hole 18 is provided inside the limited fixing block 10, and the limited screw thread 12 and the fixed block mounting hole 18 are interlocked. There is a threaded connection between them, the upper end of the knife block clamping block 1 is fixedly connected with a limiting rod 16, the lower end of the second hole-expanding knife block 3 is provided with a second knife block limiting groove 17, and the interior of the first hole-expanding knife block 2 is also provided with a first knife block limiting groove 14, the first knife block limiting groove 14 is located on both sides of the first knife block mounting groove 13, the first knife block limiting groove 14 is tightly fitted with the limiting rod 16, the second knife block limiting groove 17 is aligned with the first knife block limiting groove 14, and the limiting rod 16 runs through the second knife block limiting groove 17 and the first knife block limiting groove 14, and the size of the limiting rod 16 matches the size of the second knife block limiting groove 17 and the first knife block limiting groove 14.

[0026] Working principle:

[0027] First, insert the limit installation rod 11 into the tool block clamping block 1 through the installation rod groove 15, and thread the limit screw 12 with the fixed block installation hole 18 of the limit fixing block 10 to fix the limit installation rod 11. Then, install the first hole reaming tool block 2 on the limit installation rod 11 at the lower end of the second hole reaming tool block 3 through the first tool block installation groove 13, and ensure that the first tool block limit groove 14 and the second tool block limit groove 17 are tightly fitted with the limit rod 16 to achieve stable installation, and by replacing the hole reaming tools of different specifications, the frequency of tool replacement is reduced, the production efficiency is improved, and accurate processing of different hole diameters can be achieved;

[0028] Secondly, during the reaming process, the first reaming blade 4 and the second reaming blade 7 work together, and the knife block clamping block 1 and the limit mounting rod 11, the limit screw 12, the limit fixing block 10 and the limit rod 16 cooperate with each other, thereby ensuring the stability and reliability of the reaming knife structure, improving the processing accuracy and the service life of the knife, and the reaming knife has high cutting efficiency, and can quickly complete the reaming operation;

[0029] Then, the first chip feed port 5 and the second chip feed port 8 are responsible for collecting the debris generated during the hole expansion process, and then the debris is smoothly discharged through the first chip withdrawal groove 6 and the second chip withdrawal groove 9 to avoid the accumulation of debris in the hole, reduce the damage to the first hole expansion blade 4 and the second hole expansion blade 7, and during the hole expansion operation, the cutting process is more stable and it is not easy to have dangerous situations such as tool breakage or workpiece damage.

[0030] It is obvious 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 features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0031] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description 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 may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A reamer for micro-groove machining, comprising a tool block clamping block (1), characterized in that: A first hole-expanding knife block (2) is fixedly mounted above the knife block clamping block (1); a first knife block mounting groove (13) is provided inside the first hole-expanding knife block (2); the first knife block mounting groove (13) is mounted on the outer wall of a position-limiting mounting rod (11); and a second hole-expanding knife block (3) is fixedly connected to the top end of the position-limiting mounting rod (11); The top end of the second reaming blade block (3) is fixedly connected to a first reaming blade (4), the bottom of the first reaming blade (4) is fixedly connected to a first chip feed opening (5), a first chip withdrawal groove (6) is provided below the first chip feed opening (5), the top periphery of the first reaming blade block (2) is fixedly connected to a second reaming blade (7), the bottom of the second reaming blade (7) is fixedly connected to a second chip feed opening (8), a second chip withdrawal groove (9) is provided below the second chip feed opening (8).

2. A reamer for micro-groove machining according to claim 1, characterized in that: A limit fixing block (10) is fixedly installed below the knife block clamping block (1), and a mounting rod groove (15) is provided inside the knife block clamping block (1).

3. A reamer for micro-groove machining according to claim 2, characterized in that: A limit mounting rod (11) is fixedly mounted inside the mounting rod groove (15), and a limit screw thread (12) is provided on the outer wall of the lower end of the limit mounting rod (11).

4. A reamer for micro-groove machining according to claim 3, characterized in that: A fixing block mounting hole (18) is provided inside the limiting fixing block (10), and the limiting screw thread (12) and the fixing block mounting hole (18) are threadedly connected.

5. The reamer for micro-groove machining according to claim 1, characterized in that: The upper end of the knife block clamping block (1) is fixedly connected to a limiting rod (16), the lower end of the second hole-expanding knife block (3) is provided with a second knife block limiting groove (17), and the interior of the first hole-expanding knife block (2) is also provided with a first knife block limiting groove (14).

6. A reamer for micro-groove machining according to claim 5, characterized in that: The first blade block limiting groove (14) is located on both sides of the first blade block installation groove (13), and the first blade block limiting groove (14) is tightly fitted to the limiting rod (16).

7. A reamer for micro-groove machining according to claim 6, characterized in that: The second blade block limiting groove (17) and the first blade block limiting groove (14) are aligned with each other, and the limiting rod (16) passes through the second blade block limiting groove (17) and the first blade block limiting groove (14), and the size of the limiting rod (16) matches the size of the second blade block limiting groove (17) and the first blade block limiting groove (14).

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