Novel rose reamer

Abstract

The utility model discloses a novel chamfering cutter, which relates to the technical field of chamfering tools and comprises a driving handle, a gear box is mounted on the driving handle, an output end of the gear box is connected with a chamfering cutter bar, a cutter head is fixedly mounted on the lower side of the chamfering cutter bar, a chamfering bearing is rotatably mounted on the lower side of the cutter head, and the chamfering bearing is detachably mounted on the lower side of the cutter head. By means of the technical scheme, the chamfering bearing is placed in the corresponding hole, the positioning effect can be achieved, the chamfering bearing can be replaced by chamfering bearings of different sizes to adapt to holes of different diameters by being detached, and chamfering is more accurate after positioning is accurate.

Description

Technical Field

[0001] This utility model relates to the field of chamfering tool technology, and in particular to a novel chamfering knife. Background Technology

[0002] Chamfering cutters are essential tools in the metalworking industry, specifically designed for chamfering the edges of workpieces. These cutters are designed to remove sharp angles from workpiece edges through specific cutting angles and shapes, creating a smooth transition. This improves the appearance quality of the workpiece, enhances safety, and facilitates subsequent assembly or painting processes. Chamfering cutters are widely used in various industries such as machinery manufacturing, automotive parts production, and aerospace, and are an indispensable part of ensuring product precision and process quality. When chamfering round holes, a motorized rotating tool is typically used. During the chamfering process, the electric motor drives the tilted cutter to rotate and chamfer the hole. However, deviations are easily made during chamfering because handheld power tools are often unstable, and the hole may deviate from its axis. Therefore, a tool with support is needed. Utility Model Content

[0003] To address the aforementioned technical problems, this utility model discloses a novel chamfering tool, including a drive handle with a gearbox mounted on it. A chamfering tool shank is connected to the output end of the gearbox, and a cutting head is fixedly mounted on the lower side of the chamfering tool shank. A chamfering bearing is rotatably mounted on the lower side of the cutting head, and the chamfering bearing is detachably mounted on the lower side of the cutting head. Through this technical solution, the chamfering bearing is placed in the corresponding hole, achieving a positioning effect. Its detachability allows for replacement with chamfering bearings of different sizes to accommodate holes of different diameters, resulting in more accurate chamfering after precise positioning.

[0004] Furthermore, the chamfered bearing includes a connecting short rod, which is fixedly installed on the lower side of the cutter head. A rotating rod is rotatably mounted on the connecting short rod, and multiple fixed blocks are slidably mounted inside the rotating rod. The sliding of the fixed blocks can change the inner diameter of the support.

[0005] Furthermore, the inner side of the fixed block is provided with an inclined surface, and a sealing plate is fixedly installed on the lower side of the rotating rod. A driving rod is installed on the sealing plate, and the upper end of the driving rod cooperates with the inclined surface of the fixed block.

[0006] Furthermore, a threaded hole is provided inside the sealing plate, and a drive rod is fitted inside the hole. The drive rod is threaded on its outer side, and the top of the drive rod is rounded. When the drive rod moves upward, the fixed block moves away from the drive rod. Through the above technical solution, rotating the drive rod can push the fixed block outward, thus changing the support radius. Changing the support radius can accommodate holes of different diameters. Within a small range of hole diameter changes, there is no need to replace the chamfered bearing, which greatly simplifies the operation and improves efficiency.

[0007] Furthermore, a connecting plate is fixedly mounted on the lower side of the gear box, and a sleeve is fixedly mounted on the lower side of the connecting plate. The chamfering tool bar is located inside the sleeve, and a positioning threaded ring is mounted on the sleeve. The position of the positioning threaded ring on the sleeve is adjustable.

[0008] Furthermore, the sleeve is provided with thread one and thread two, with opposite directions of rotation. Thread one is fitted onto thread one, and the positioning threaded ring engages with thread two. Through the above technical solution, rotating thread one can change the relative position of the positioning threaded ring and the cutting head. During chamfering, the lower end of the positioning threaded ring provides support and positioning, ensuring the accuracy of the chamfering. Since threads one and two are opposite in rotation, ensuring that the fixing threaded ring is tightly attached to the positioning threaded ring guarantees that the fixing threaded ring will not change position due to vibration during grinding, thus achieving a locking effect and making the positioning of the positioning threaded ring more accurate.

[0009] Furthermore, a rotating ring is rotatably mounted on the cutter head, a spring is fixedly mounted on the rotating ring, a connecting ring is fixedly mounted on the spring, and a rotating cylinder is fixedly mounted on the connecting ring.

[0010] Furthermore, a limiting ring is rotatably mounted on the chamfering tool holder, and the position of the limiting ring on the chamfering tool holder is adjustable. Through the above technical solution, the rotating cylinder can always remain in contact with the upper end of the workpiece during the chamfering process, preventing chips from flying around. Moreover, when the desired position is reached, the rotating cylinder blocks the limiting ring and cannot continue, thus achieving a positioning effect.

[0011] The advantages of this utility model compared with the prior art are:

[0012] (1) Through the technical solution of this utility model, the chamfered bearing is placed in the corresponding hole, which can achieve the positioning effect. It can be disassembled and replaced with chamfered bearings of different sizes to adapt to holes of different diameters. After accurate positioning, the chamfering is also more accurate.

[0013] (2) Through the technical solution of this utility model, the rotating drive rod can push the fixed block outward, which changes the support radius. Changing the support radius can adapt to holes of different diameters. Within a small range, the hole diameter does not need to be changed without replacing the chamfer bearing, which greatly simplifies the operation and improves efficiency.

[0014] (3) Through the technical solution of this utility model, rotating thread one can change the relative position of the positioning thread ring and the cutting head. When chamfering, the lower end of the positioning thread ring is supported and positioned to ensure the accuracy of chamfering. Thread one and thread two are opposite, so that the fixed thread ring is close to the positioning thread ring to ensure that the fixed thread ring will not change position due to vibration during the grinding process, thus achieving a locking effect and making the positioning of the positioning thread ring more accurate.

[0015] (4) Through the technical solution of this utility model, the rotating cylinder can always stick to the upper end of the workpiece during the chamfering process, preventing chips from flying around, and when the required position is reached, the rotating cylinder stops the limiting ring and cannot continue, thus achieving the positioning effect. Attached Figure Description

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

[0017] Figure 2 This is a partial structural side view of Embodiment 1 of the present utility model.

[0018] Figure 3 for Figure 2 Cross-sectional view at point C.

[0019] Figure 4 for Figure 3 Enlarged view of point A in the middle.

[0020] Figure 5 This is a schematic diagram of the overall structure of Embodiment 2 of this utility model.

[0021] Figure 6 This is a partial structural side view of Embodiment 2 of the present invention.

[0022] Figure 7 for Figure 6 A magnified view of section BB in the middle.

[0023] Reference numerals: 1-Drive handle; 2-Gearbox; 3-Connecting plate; 4-Sleeve; 5-Fixing threaded ring; 6-Positioning threaded ring; 7-Thread 1; 8-Thread 2; 9-Cutter head; 10-Rotating rod; 11-Fixing block; 12-Sealing plate; 13-Drive rod; 14-Chamfering cutter bar; 15-Connecting short rod; 16-Rotating cylinder; 17-Spring; 18-Connecting ring; 19-Rotating ring; 20-Limiting ring. Detailed Implementation

[0024] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0025] Example 1

[0026] like Figures 1-4The illustration shows a novel chamfering tool, including a drive handle 1, which can be powered by an angle grinder or other electric tools. A gearbox 2 is mounted on the drive handle 1, and its output direction can be changed as needed. In this embodiment, it is perpendicular to the drive handle 1. A chamfering tool holder 14 is connected to the output end of the gearbox 2. A cutting head 9 is fixedly mounted on the lower side of the chamfering tool holder 14, and a chamfering bearing is rotatably mounted on the lower side of the cutting head 9. The chamfering bearing is detachably mounted on the lower side of the cutting head 9. Through this technical solution, the chamfering bearing is placed in the corresponding hole, achieving a positioning effect. Its detachability allows for replacement with chamfering bearings of different sizes to accommodate holes of different diameters, resulting in more accurate chamfering after precise positioning.

[0027] In this embodiment, the chamfer bearing includes a connecting short rod 15, which is fixedly installed on the lower side of the cutter head 9. The connecting short rod 15 has a hole, and the rotating ring 19 has a bolt hole on its lower side. The bolt passes through the connecting short rod 15 for fixation. A rotating rod 10 is rotatably mounted on the connecting short rod 15 and is connected by a T-slot. Ball bearings can also be used to improve the sliding effect. Multiple fixing blocks 11, specifically four, are slidably mounted inside the rotating rod 10. The sliding of the fixing blocks 11 can change the inner diameter of the support.

[0028] The inner side of the fixed block 11 is provided with an inclined surface. A sealing plate 12 is fixedly installed on the lower side of the rotating rod 10. A driving rod 13 is installed on the sealing plate 12, and the upper end of the driving rod 13 mates with the inclined surface of the fixed block 11. A threaded hole is provided in the sealing plate 12, and the driving rod 13 is fitted in the hole. The outer side of the driving rod 13 is threaded, and the top end of the driving rod 13 is rounded. When the driving rod 13 moves upward, the fixed block 11 moves away from the driving rod 13. The driving rod 13 only restricts the minimum support radius of the fixed block 11. That is, when it is not placed in the hole, the fixed block 11 can move away from the driving rod 13, but cannot move closer. When it is placed in the hole, the hole and the driving rod 13 together restrict the fixed block 11 from moving. Through the above technical solution, rotating the driving rod 13 can push the fixed block 11 outward, thus changing the support radius. Changing the support radius can adapt to holes of different diameters. Within a small range of hole diameter changes, there is no need to replace the chamfered bearing, which greatly simplifies the operation and improves efficiency.

[0029] In this embodiment, a connecting plate 3 is fixedly mounted on the lower side of the gear box 2, and a sleeve 4 is fixedly mounted on the lower side of the connecting plate 3. The chamfering tool 14 is located inside the sleeve 4, and a positioning threaded ring 6 is mounted on the sleeve 4. The position of the positioning threaded ring 6 on the sleeve 4 is adjustable. The sleeve 4 is provided with a first thread 7 and a second thread 8, which have opposite directions of rotation. The first thread 7 is fitted with the second thread 8, and the positioning threaded ring 6 is fitted with the second thread 8. Through the above technical solution, rotating the first thread 7 can change the relative position of the positioning threaded ring 6 and the tool head 9. During chamfering, the lower end of the positioning threaded ring 6 provides support and positioning, ensuring the accuracy of the chamfering. The opposite threads of the first thread 7 and the second thread 8 ensure that the fixed threaded ring 5 is tightly attached to the positioning threaded ring 6, which ensures that the fixed threaded ring 5 will not change position due to vibration during the grinding process, thus achieving a locking effect and making the positioning of the positioning threaded ring 6 more accurate.

[0030] Working principle: First, rotate the drive rod 13 to adjust its position so that the fixed block 11 supports the workpiece hole. Then, adjust the position of the positioning threaded ring 6 according to the required machining depth. Then, tighten the fixing threaded ring 5 to lock the positioning threaded ring 6 and start machining. Machining stops after the bottom end of the positioning threaded ring 6 contacts the top end of the workpiece.

[0031] Example 2

[0032] like Figures 5-7 The illustration shows a novel chamfering tool, comprising a drive handle 1, which can be powered by an angle grinder or other power tool. A gearbox 2 is mounted on the drive handle 1, and a chamfering tool holder 14 is connected to the output end of the gearbox 2. A cutting head 9 is fixedly mounted on the lower side of the chamfering tool holder 14, and a chamfering bearing is rotatably mounted on the lower side of the cutting head 9. This chamfering bearing, placed within a corresponding hole, provides a positioning effect. Its detachability allows for replacement with chamfering bearings of different sizes to accommodate holes of varying diameters, resulting in more accurate chamfering after precise positioning.

[0033] In this embodiment, the chamfer bearing includes a connecting short rod 15, which is fixedly installed on the lower side of the cutter head 9. The connecting short rod 15 has a hole, and the rotating ring 19 has a bolt hole on its lower side. The bolt passes through the connecting short rod 15 for fixation. A rotating rod 10 is rotatably mounted on the connecting short rod 15 and is connected by a T-slot. Ball bearings can also be used to improve the sliding effect. Multiple fixing blocks 11, specifically four, are slidably mounted inside the rotating rod 10. The sliding of the fixing blocks 11 can change the inner diameter of the support.

[0034] The inner side of the fixed block 11 is provided with an inclined surface. A sealing plate 12 is fixedly installed on the lower side of the rotating rod 10. A driving rod 13 is installed on the sealing plate 12, and the upper end of the driving rod 13 mates with the inclined surface of the fixed block 11. A threaded hole is provided in the sealing plate 12, and the driving rod 13 is fitted in the hole. The outer side of the driving rod 13 is threaded, and the top end of the driving rod 13 is rounded. When the driving rod 13 moves upward, the fixed block 11 moves away from the driving rod 13. The driving rod 13 only restricts the minimum support radius of the fixed block 11. That is, when it is not placed in the hole, the fixed block 11 can move away from the driving rod 13, but cannot move closer. When it is placed in the hole, the hole and the driving rod 13 together restrict the fixed block 11 from moving. Through the above technical solution, rotating the driving rod 13 can push the fixed block 11 outward, thus changing the support radius. Changing the support radius can adapt to holes of different diameters. Within a small range of hole diameter changes, there is no need to replace the chamfered bearing, which greatly simplifies the operation and improves efficiency.

[0035] A rotating ring 19 is rotatably mounted on the cutting head 9. A spring 17 is fixedly mounted on the rotating ring 19. A connecting ring 18 is fixedly mounted on the spring 17. A rotating cylinder 16 is fixedly mounted on the connecting ring 18. A limiting ring 20 is rotatably mounted on the chamfering tool holder 14. The position of the limiting ring 20 on the chamfering tool holder 14 is adjustable. Through the above technical solution, the rotating cylinder 16 can always be in contact with the upper end of the workpiece during the chamfering process to prevent chips from flying around. When the desired position is reached, the rotating cylinder 16 presses against the limiting ring 20 and cannot continue, thus achieving a positioning effect.

[0036] Working principle: First, rotate the drive rod 13 to adjust its position so that the fixed block 11 supports the workpiece hole. Then, adjust the position of the limiting ring 20 according to the required machining depth. Then, tighten the fixing threaded ring 5 to lock the positioning threaded ring 6 and start machining. The rotating cylinder 16 is close to the workpiece, and the chamfering tool bar 14 moves downward. During the process, the spring 17 is compressed. Machining stops after the top of the rotating cylinder 16 contacts the lower end of the limiting ring 20.

[0037] The above embodiments only illustrate one or more implementations of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of this utility model. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the appended claims.

Claims

1. A novel chamfering tool, comprising a drive handle (1), wherein a gearbox (2) is mounted on the drive handle (1), characterized in that, The output end of the gearbox (2) is connected to a chamfering tool bar (14). A tool head (9) is fixedly mounted on the lower side of the chamfering tool bar (14). A chamfering bearing is rotatably mounted on the lower side of the tool head (9). The chamfering bearing is detachably mounted on the lower side of the tool head (9).

2. The novel chamfering tool according to claim 1, characterized in that, The chamfered bearing includes a connecting short rod (15), which is fixedly installed on the lower side of the cutter head (9). A rotating rod (10) is rotatably mounted on the connecting short rod (15). Multiple fixing blocks (11) are slidably mounted inside the rotating rod (10). The sliding of the fixing blocks (11) can change the inner diameter of the support.

3. A novel chamfering tool according to claim 2, characterized in that, The inner side of the fixed block (11) is provided with an inclined surface, and a sealing plate (12) is fixedly installed on the lower side of the rotating rod (10). A driving rod (13) is installed on the sealing plate (12), and the upper end of the driving rod (13) cooperates with the inclined surface of the fixed block (11).

4. A novel chamfering tool according to claim 3, characterized in that, The sealing plate (12) is provided with a threaded hole, and a drive rod (13) is fitted inside the hole. The drive rod (13) is provided with a thread on the outside and the top of the drive rod (13) is rounded. The drive rod (13) moves upward and the fixing block (11) moves away from the drive rod (13).

5. A novel chamfering tool according to any one of claims 1-4, characterized in that, A connecting plate (3) is fixedly mounted on the lower side of the gear box (2), and a sleeve (4) is fixedly mounted on the lower side of the connecting plate (3). The chamfering tool bar (14) is located inside the sleeve (4), and a positioning threaded ring (6) is mounted on the sleeve (4). The position of the positioning threaded ring (6) on the sleeve (4) is adjustable.

6. A novel chamfering tool according to claim 5, characterized in that... The sleeve (4) is provided with thread one (7) and thread two (8), the threads one (7) and thread two (8) have opposite directions of rotation, thread one (7) is fitted on thread one (7), and the positioning threaded ring (6) is fitted with thread two (8).

7. A novel chamfering tool according to any one of claims 1-4, characterized in that, A rotating ring (19) is rotatably mounted on the cutter head (9), a spring (17) is fixedly mounted on the rotating ring (19), a connecting ring (18) is fixedly mounted on the spring (17), and a rotating cylinder (16) is fixedly mounted on the connecting ring (18).

8. A novel chamfering tool according to claim 7, characterized in that, A limiting ring (20) is rotatably mounted on the chamfering tool holder (14), and the position of the limiting ring (20) on the chamfering tool holder (14) is adjustable.

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