Shell type drilling reamer

Abstract

The utility model relates to the field of precision machining, and discloses a shell type drilling reamer which comprises a reamer bar, a round handle is fixedly connected to the top of the reamer bar, a convex table is fixedly connected to the bottom of the reamer bar, a screw is in threaded connection with the outside of the reamer bar, a threaded column is in threaded connection with the inside of the reamer bar, and a threaded rod is arranged on the threaded column. The bottom of the threaded column is fixedly connected with a connecting column, the bottom of the connecting column is fixedly connected with a supporting column, the outer portion of the supporting column is slidably connected with a countersink, and the bottom of the supporting column is fixedly connected with a reamer head. According to the utility model, the countersink is connected with the supporting column, so that the working efficiency is improved, the disassembly, replacement and comprehensive maintenance are convenient, the cost of customizing the tool bit is saved, and meanwhile, the self-tightening can be realized in the working process under the condition that the cutting surface and the thread are in the same direction, so that the working stability is improved, and the working efficiency is improved. And meanwhile, the complexity of working procedures in use is reduced.

Description

Technical Field

[0001] The utility model relates to the field of precision machining, in particular to a sleeve type drill reamer. Background Technique

[0002] A drill reamer is a cutting tool specifically used for metal processing, mainly used for drilling holes in workpieces, and can be used for both drilling and reaming. The sleeve type drill reamer can reduce the number of tool replacements during the processing, simplify the operation, thereby reducing the manufacturing time and improving the production efficiency.

[0003] In some existing devices, during use, the production cost is usually increased due to the need to customize the tool heads for matching. And due to the complexity of the sleeve design, once the tool is worn or damaged, it may be necessary to replace the whole instead of just repairing a certain part. Therefore, a sleeve type drill reamer is proposed to solve the above problems. Content of the Utility Model

[0004] In order to make up for the above deficiencies, the utility model provides a sleeve type drill reamer, aiming to improve the problems of multiple tool head combinations and working efficiency in some existing devices.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0006] A sleeve type drill reamer includes a tool shank, a round handle is fixedly connected to the top of the tool shank, a convex platform is fixedly connected to the bottom of the tool shank, a screw is threadedly connected to the outside of the tool shank, a threaded column is threadedly connected to the inside of the tool shank, a connecting column is fixedly connected to the bottom of the threaded column, a support column is fixedly connected to the bottom of the connecting column, a countersink cutter is slidably connected to the outside of the support column, and a reamer head is fixedly connected to the bottom of the support column;

[0007] As a further description of the above technical scheme:

[0008] An alloy groove is opened at the bottom of the countersink cutter, and a clamping groove is opened on the outside of the countersink cutter;

[0009] As a further description of the above technical scheme:

[0010] A fixing groove is opened at the bottom of the convex platform, and the clamping groove is slidably connected inside the fixing groove;

[0011] As a further description of the above technical scheme:

[0012] Insert slots are opened on both the left and right sides of the convex platform, and threaded holes are opened on the outside of the support column;

[0013] As a further description of the above technical scheme:

[0014] The screw is threadedly connected inside the tool shank, and the screw is threadedly connected inside the threaded hole;

[0015] As a further description of the above technical solution:

[0016] The inside of the slot is slidably connected to the top of the countersinking cutter, and the threaded post is threadedly connected inside the tool shank;

[0017] As a further description of the above technical solution:

[0018] The countersinking cutter is outside the alloy groove of the reamer head, and the screw sequentially passes through the threaded hole and the inside of the tool shank.

[0019] The utility model has the following beneficial effects:

[0020] In the utility model, through the connection between the countersinking cutter and the support column, the working efficiency is improved during use. At the same time, it is convenient for disassembly, replacement and comprehensive maintenance, saving the cost of custom-made tool heads. At the same time, when the cutting surface is in the same direction as the thread, it can self-tighten during work, increasing its working stability and reducing the complexity of the working process. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a three-dimensional schematic diagram of a sleeve type drill reamer proposed by the utility model;

[0022] Figure 2 is a structural schematic diagram of the threaded hole of a sleeve type drill reamer proposed by the utility model;

[0023] Figure 3 is a structural schematic diagram of the card slot of a sleeve type drill reamer proposed by the utility model;

[0024] Figure 4 is a structural schematic diagram of the fixing groove of a sleeve type drill reamer proposed by the utility model.

[0025] LEGEND DESCRIPTION:

[0026] 1. Tool shank; 2. Round handle; 3. Convex platform; 4. Countersinking cutter; 5. Alloy groove; 6. Screw; 7. Reamer head; 8. Support column; 9. Threaded hole; 10. Connecting column; 11. Threaded post; 12. Card slot; 13. Fixing groove; 14. Slot. DETAILED DESCRIPTION OF THE INVENTION

[0027] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0028] Referring to Figures 1 to 2 , an embodiment provided by the present utility model: a sleeve-type drill reamer, including a tool shank 1, which is a cylindrical metal rod made of high-strength alloy steel material, having excellent wear resistance and compressive strength to ensure that it can withstand large cutting forces during the cutting process. A round handle 2 is fixedly connected to the top of the tool shank 1. The design of the round handle 2 ensures quick connection with an electric tool or a manual tool, facilitating the user to replace the drill bit during operation. A convex platform 3 is fixedly connected to the bottom of the tool shank 1. The tool shank 1 is externally threadedly connected with a screw 6. The design of the screw 6 aims to stabilize the connection between the tool shank 1 and the connecting component, ensuring no looseness during the cutting process. A threaded column 11 is internally threadedly connected to the tool shank 1. A connecting column 10 is fixedly connected to the bottom of the threaded column 11. The connecting column 10 is designed as a short cylinder and is made of high-strength material to reduce the overall weight and enhance the structural stability. A supporting column 8 is fixedly connected to the bottom of the connecting column 10. Its design ensures high stability during cutting. A countersinking cutter 4 is slidably connected to the outside of the supporting column 8. The design of the countersinking cutter 4 improves the cutting efficiency. A reamer head 7 is fixedly connected to the bottom of the supporting column 8. Among them, alloy blades are contained in the grooves inside the reamer head 7. Its design ensures efficient cutting operation and effective chip removal during the drilling process;

[0029] Referring to Figures 3 to 4 , an alloy groove 5 is opened at the bottom of the countersinking cutter 4, a clamping groove 12 is opened on the outside of the countersinking cutter 4, and a fixing groove 13 is opened at the bottom of the convex platform 3. The clamping groove 12 is slidably connected inside the fixing groove 13. Its design can fix the countersinking cutter 4 inside the fixing groove 13 through the clamping groove 12 to prevent shaking during use. Slots 14 are opened on both the left and right sides of the convex platform 3. When the countersinking cutter 4 is fixed through the fixing groove 13, the slots 14 can assist in the stability of its fixation. A threaded hole 9 is opened on the outside of the supporting column 8. The screw 6 is threadedly connected inside the tool shank 1 and also threadedly connected inside the threaded hole 9. The inside of the slot 14 is slidably connected to the top of the countersinking cutter 4. The threaded column 11 is threadedly connected inside the tool shank 1. The alloy groove 5 of the countersinking cutter 4 is outside the reamer head 7. The screw 6 sequentially passes through the threaded hole 9 and the inside of the tool shank 1, facilitating the stability of the overall combination. At the same time, the cutting force directions of the countersinking cutter 4 and the reamer head 7 are consistent with the tightening direction of the threaded connection, enabling self-tightening during use.

[0030] Working principle: When using a reamer, the countersinking cutter 4 is sleeved outside the support column 8 for combination. After the assembly is completed, the thread is rotated to the bottom of the tool shank 1 through the threaded column 11 to fix and combine it. At the same time, the card slot 12 is fixed in the fixed slot 13, which facilitates the transmission of the torque during cutting. Secondly, the slot 14 is fixed at the top of the countersinking cutter 4 of the device, aiming to increase stability after the assembly is completed. After the combination is completed, under the action of the screw 6, the screw 6 penetrates through the tool shank 1 and the inside of the countersinking cutter 4 and is threadedly fixed in the threaded hole 9, which increases the stability of the assembled reamer head 7. When the reamer head 7 starts to rotate and work, the reamer head 7 will open a hole in the target object. At the same time, under the action of the countersinking cutter 4, the working time is shortened. Its design facilitates the replacement of the reamer and can perform all-round maintenance on the reamer. Moreover, the assembly design improves the working efficiency, enables convenient replacement of different-sized tool heads for combination, reduces the procurement cost, and shortens the processing production cycle for customized tools.

[0031] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A sleeve drill reamer, comprising a tool bar (1), characterized in that: The top of the tool rod (1) is fixedly connected to a round handle (2), the bottom of the tool rod (1) is fixedly connected to a convex platform (3), the external thread of the tool rod (1) is connected to a screw (6), the internal thread of the tool rod (1) is connected to a threaded column (11), the bottom of the threaded column (11) is fixedly connected to a connecting column (10), the bottom of the connecting column (10) is fixedly connected to a supporting column (8), the outside of the supporting column (8) is slidably connected to a countersink (4), and the bottom of the supporting column (8) is fixedly connected to a reamer head (7).

2. A sleeve drill reamer according to claim 1, characterized in that: An alloy groove (5) is provided at the bottom of the countersinking cutter (4), and a clamping groove (12) is provided on the outside of the countersinking cutter (4).

3. A sleeve drill reamer according to claim 2, characterized in that: A fixing groove (13) is provided at the bottom of the convex platform (3), and the clamping groove (12) is slidably connected inside the fixing groove (13).

4. A sleeve drill reamer according to claim 3, characterized in that: Slots (14) are provided on both the left and right sides of the convex platform (3), and threaded holes (9) are provided on the outside of the support column (8).

5. A sleeve drill reamer according to claim 4, characterized in that: The screw (6) is threadedly connected to the inside of the knife rod (1), and the screw (6) is threadedly connected to the inside of the threaded hole (9).

6. A sleeve drill reamer according to claim 4, characterized in that: The interior of the slot (14) is slidably connected to the top of the countersinking cutter (4), and the threaded column (11) is threadedly connected to the interior of the tool rod (1).

7. A sleeve drill reamer according to claim 4, characterized in that: The countersink (4) is located on the outside of the alloy groove (5) and the reamer head (7), and the screw (6) passes through the threaded hole (9) and the inside of the tool rod (1) in sequence.

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