A reamer for cutting aviation alloy aluminum materials

Abstract

The utility model belongs to the technical field of cutting tools, and particularly relates to a reamer for cutting aviation alloy aluminum materials. Aiming at the problem of unstable connection between the existing reamer body and the arbor, the following scheme is proposed, including the arbor, one end of the arbor is provided with a mounting hole, the inner wall of the mounting hole is provided with a positioning groove, a connecting rod is provided inside the mounting hole, and a card slot is provided on the outer surface of the connecting rod. The utility model can slowly move the pressure block toward the sloped connecting plate while the rotating ring is rotating, squeeze the connecting plate and the card block one, so that the card block moves down and is engaged inside the card slot. After the pressure block is located above the connecting plate and the card block one, it can slide along the sliding groove three through the sliding ring, so that the fixed plug plate is plugged into the slot on the rotating ring, fix the position of the rotating ring and the pressure block, prevent the rotating ring from affecting the fixing effect of the connecting rod and the cutter head, ensure the stability of the connection between the cutter head and the arbor, and prevent the connecting rod from shaking inside the arbor and causing the cutter head to shake during use.

Description

Technical Field

[0001] The utility model relates to a reamer, in particular to a reamer for cutting aviation alloy aluminum materials, belonging to the technical field of cutting tools. Background Art

[0002] Aviation aluminum refers to special aluminum alloy materials used in the aviation field. Due to its lightweight, weldability, strength and corrosion resistance, it has become an important part of the aviation industry. A reamer is a rotary tool with one or more teeth used to remove a thin layer of metal on the surface of a processed hole. A reamer is a rotary finishing tool with a straight or spiral edge, used for hole expansion or hole repair, and is often used in the cutting of aviation alloy aluminum.

[0003] In the prior art, a reamer disclosed in announcement number CN220427030U includes a reamer body, a shank and a locking sleeve, the shank including a shank body, an external thread and a locking key, the outer wall on the right side of the shank is threadedly connected with a locking sleeve, the right end of the shank is recessed to the left to form a slot, and a locking key is movably installed on the upper side, lower side, front side and rear side of the right end of the shank body, respectively, and an external thread is provided on the left side surface of the shank body. The reamer body includes a cutter head and a connecting rod, and the left end of the cutter head is integrally provided with a connecting rod. By arranging the reamer body and the shank, the split structure allows the entire reamer to be disassembled. When the left side of the cutter head of the reamer body is severely worn or the cutter head needs to be replaced, there is no need to replace the entire reamer, and the reamer body only needs to be removed from the shank and replaced with a new reamer body.

[0004] When the above technical solution is in use, the positioning strip on the connecting rod is aligned with the positioning groove on the inner wall of the tool rod chamber, and then the connecting rod is inserted into the interior of the tool rod to align the keyway with the rectangular through groove, and then the tool rod and the connecting rod are aligned by means of a locking key and a locking sleeve, so that the reamer body and the tool rod are spliced ​​to facilitate the replacement of the reamer body. However, since the reamer body fixes the connecting rod and the tool rod by means of a locking key and a locking sleeve, when the threaded hole and the external thread inside the fastening sleeve are tightened and fixed for multiple times to cause thread slippage, it is easy for the fastening sleeve to loosen the fixation on the locking key, causing the locking key to loosen the connection with the keyway, causing the connecting rod and the tool rod to shake, thereby resulting in an unstable connection between the reamer body and the tool rod. In view of this, a reamer for cutting aviation alloy aluminum materials is provided to overcome the above-mentioned defects. Utility Model Content

[0005] The utility model provides a reamer for cutting aviation alloy aluminum materials in order to solve the problem of unstable connection between the reamer body and the tool rod.

[0006] The utility model achieves the above-mentioned purpose through the following technical scheme: a reamer for cutting aviation alloy aluminum materials, comprising a shank, one end of which is provided with a mounting hole, the inner wall of which is provided with a positioning groove, a connecting rod is provided inside the mounting hole, and a clamping groove is provided on the outer surface of the connecting rod;

[0007] The outer surface of the knife rod is provided with a slide groove 1, a clamping block 1 is fixed inside the slide groove 1, a connecting plate is fixed on the top of the clamping block 1, two return springs are fixed on both sides of the connecting plate, a slide groove 2 is provided at one end of the slide groove 1, a telescopic spring 2 is fixed on the inner wall of one end of the slide groove 2, a push plate is fixed on one end of the telescopic spring 2, a swivel is provided on the outer wall of the knife rod, a pressure block is fixed on the inner wall of the swivel, and clamping blocks 2 are fixed at both ends of the swivel.

[0008] As a further solution of the utility model: a slot is provided on the outer surface of one end of the rotating ring, a fixed plug plate is movably connected inside the slot, and a sliding ring is fixed to one end of the fixed plug plate.

[0009] As a further solution of the utility model: the rotating ring forms a rotating structure with the knife rod through the second clamping block, and the sliding ring forms a sliding structure with the knife rod.

[0010] As a further solution of the utility model: the outer wall of the connecting rod is fixedly connected with a positioning rod, and one end of the connecting rod is provided with a cutter head.

[0011] As a further solution of the utility model: a sliding block is fixed inside the sliding ring, a sliding groove three is arranged outside the sliding block, and a telescopic plate is fixed at one end of the sliding ring.

[0012] As a further solution of the utility model: a telescopic spring 1 is fixed to one end of the telescopic plate, and a telescopic groove is fixed to one end of the telescopic spring 1.

[0013] As a further solution of the utility model: the connecting rod and the cutter head are an integrated fixed structure, and the telescopic plate forms a telescopic structure with the telescopic slot through a telescopic spring 1.

[0014] The beneficial effects of the utility model are:

[0015] 1. While the swivel is rotating, the pressing block can slowly move toward the sloped connecting plate to squeeze the connecting plate and the card block 1, so that the card block moves down and is engaged in the card slot. After the pressing block is located above the connecting plate and the card block 1, the sliding ring can slide along the sliding slot 3 to make the fixed plug plate plug into the slot on the swivel, fix the position of the swivel and the pressing block, prevent the rotation of the swivel from affecting the fixing effect of the connecting rod and the cutter head, ensure the stability of the connection between the cutter head and the cutter rod, and prevent the connecting rod from shaking inside the cutter rod, which may cause the cutter head to shake during use;

[0016] 2. The connecting rod and the cutter head are an integrated fixed structure, which is convenient for the installation of the cutter head and the cutter rod. The telescopic plate and the telescopic slot are telescopic, and the telescopic plate can be retracted into the telescopic slot by a telescopic spring 1 to facilitate the movement of the sliding ring. While being able to move on the outer wall of the cutter rod, it can also abut against one end of the swivel ring through the elastic action of the telescopic spring 1. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the knife bar of the utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the cutter head of the utility model;

[0020] Figure 4 It is a cross-sectional view of the swivel and the knife rod of the utility model.

[0021] In the figure: 1. cutter head; 2. connecting rod; 3. positioning rod; 4. slot; 5. cutter rod; 6. mounting hole; 7. positioning slot; 8. slide slot 1; 9. telescopic spring 1; 10. connecting plate; 11. block 1; 12. slide slot 2; 13. telescopic spring 2; 14. push plate; 15. swivel; 16. pressure block; 17. block 2; 18. slot; 19. sliding ring; 20. fixed plug plate; 21. slider; 22. slide slot 3; 23. telescopic plate; 24. telescopic slot. DETAILED DESCRIPTION

[0022] 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

[0023] like Figures 1 to 4 As shown, a reamer for cutting aviation alloy aluminum materials comprises a shank 5, a mounting hole 6 is formed at one end of the shank 5, a positioning groove 7 is formed on the inner wall of the mounting hole 6, a connecting rod 2 is formed inside the mounting hole 6, a clamping groove 4 is formed on the outer surface of the connecting rod 2, and the connecting rod 2 can be mounted inside the shank 5 through the mounting hole 6;

[0024] The outer surface of the knife bar 5 is provided with a slide groove 8, a block 11 is fixed inside the slide groove 8, a connecting plate 10 is fixed on the top of the block 11, two return springs are fixed on both sides of the connecting plate 10, a slide groove 12 is provided at one end of the slide groove 8, a telescopic spring 13 is fixed to the inner wall of one end of the slide groove 12, a push plate 14 is fixed to one end of the telescopic spring 13, a swivel 15 is provided on the outer wall of the knife bar 5, a pressure block 16 is fixed to the inner wall of the swivel 15, and a block 17 is fixed at both ends of the swivel 15, and the swivel 15 is clamped in the slide groove through the block 17 The two sides of the first 8 and the second slide groove 12 rotate on both sides. While rotating, the pressing block 16 slowly moves onto the sloped connecting plate 10 to squeeze the connecting plate 10 and the card block 11 so that the card block 11 is engaged in the inside of the card groove 4. After the pressing block 16 moves to the top of the connecting plate 10, the push plate 14 can also be moved in the second slide groove 12 by the telescopic spring 13 to push the pressing block 16 on the connecting plate 10 to prevent the pressing block 16 from moving into the second slide groove 12, so that the card block 11 rebounds through the reset spring, thereby losing the squeezing of the card block 11. Embodiment 2

[0025] In addition to all the technical features of the first embodiment, this embodiment also includes:

[0026] A slot 18 is provided on the outer surface of one end of the swivel 15, and a fixed plug plate 20 is movably connected inside the slot 18. A sliding ring 19 is fixed to one end of the fixed plug plate 20. The sliding ring 19 at one end of the tool rod 5 slides along the slide groove 22 through the slider 21, so that the fixed plug plate 20 can be plugged into the slot 18 on the swivel 15, thereby fixing the positions of the swivel 15 and the pressure block 16, and preventing the rotation of the swivel 15 from affecting the fixing effect on the connecting rod 2 and the tool head 1.

[0027] The swivel 15 forms a rotating structure with the knife bar 5 through the clamping block 2 17, and the sliding structure is formed with the knife bar 5. When the swivel 15 rotates, the pressing block 16 slowly moves onto the sloped connecting plate 10, and squeezes the connecting plate 10 and the clamping block 1 11, so that the clamping block 11 moves down and is engaged in the inside of the clamping groove 4. After the pressing block 16 is located above the connecting plate 10 and the clamping block 1 11, it can slide along the sliding groove 3 22 through the sliding ring 19, so that the fixed plug plate 20 is plugged into the slot 18 on the swivel 15, and the position of the swivel 15 and the pressing block 16 is fixed, so as to prevent the rotation of the swivel 15 from affecting the fixing effect of the connecting rod 2 and the cutter head 1, thereby ensuring the stability of the connection between the cutter head 1 and the cutter bar 5, and preventing the connecting rod 2 from shaking inside the cutter bar 5, which may cause the cutter head 1 to shake during use.

[0028] The outer wall of the connecting rod 2 is fixedly connected with a positioning rod 3, and a cutter head 1 is arranged at one end of the connecting rod 2. The positioning rod 3 can prevent the connecting rod 2 from rotating inside the cutter head 1, thereby ensuring that the positions of the card slot 4 and the card block 11 can correspond.

[0029] A slider 21 is fixed inside the sliding ring 19, a slide groove 22 is arranged on the outside of the slider 21, and a telescopic plate 23 is fixed at one end of the sliding ring 19. The slider 21 and the slide groove 22 enable the sliding ring 19 to maintain linear sliding on the outer wall of the knife rod 5.

[0030] A telescopic spring 9 is fixed at one end of the telescopic plate 23, and a telescopic groove 24 is fixed at one end of the telescopic spring 9. The telescopic plate 23 can be retracted into the telescopic groove 24 through the telescopic spring 9 so that the sliding ring 19 can move along the outer wall of the knife rod 5 while also being able to abut against one end of the rotating ring 15 through the elastic action of the telescopic spring 9.

[0031] The connecting rod 2 and the cutter head 1 are an integrated fixed structure, and the telescopic plate 23 forms a telescopic structure with the telescopic spring 9 and the telescopic slot 24. The connecting rod 2 and the cutter head 1 are an integrated fixed structure, which can facilitate the installation of the cutter head 1 and the cutter rod 5. The telescopic plate 23 and the telescopic slot 24 are telescopic, and the telescopic plate 23 can be retracted into the telescopic slot 24 by the telescopic spring 9 to facilitate the movement of the sliding ring 19. While being able to move on the outer wall of the cutter rod 5, it can also abut against one end of the swivel ring 15 through the elastic action of the telescopic spring 9.

[0032] Working principle: Before using the reamer for cutting aviation alloy aluminum, the reamer head 1 can be installed into the inside of the tool rod 5 through the connecting rod 2, the positioning rod 3, the mounting hole 6 and the positioning groove 7, and then the sliding ring 19 at one end of the tool rod 5 is slid along the slide groove 3 22 through the slider 21, so that the fixed plug plate 20 on the sliding ring 19 is moved out from the slot 18 of the swivel 15, and the telescopic plate 23 is retracted into the telescopic groove 24 through the telescopic spring 19 when the sliding ring 19 moves, so that the fixed plug plate 20 on the sliding ring 19 can be loosened from the fixation of the swivel 15 when replacing and installing the tool head 1 so that the swivel 15 can be rotated. After the sliding ring 19 and the fixed plug plate 20 are not fixed to the swivel 15, the swivel 15 is clamped on both sides of the slide groove 1 8 and the slide groove 12 by the clamping block 2 17, and rotates on both sides. While rotating, the pressing block 16 slowly moves onto the sloped connecting plate 10 to squeeze the connecting plate 10 and the clamping block 11 so that the clamping block 11 is engaged The push plate 14 can be moved in the second slide groove 12 by the telescopic spring 13 to push the pressure block 16 on the connecting plate 10 to prevent the pressure block 16 from moving into the second slide groove 12. When the pressure block 16 squeezes the connecting plate 10 and the card block 11, the sliding ring 19 can be slid downward to make the fixed plug plate 20 plug into the slot 18, fix the position of the swivel 15 and the pressure block 16, and prevent the swivel 15 from rotating and affecting the fixing effect of the connecting rod 2 and the cutter head 1. The telescopic plate 23 at one end of the sliding ring 19 is connected to the telescopic spring 19. Through the elastic action of the telescopic spring 19, the sliding ring 19 can be abutted against the swivel 15 to prevent the sliding ring 19 from sliding on the outer wall of the knife rod 5 and affecting the effect of fixing the swivel 15, thereby ensuring the stability of the connection between the cutter head 1 and the knife rod 5 and preventing the connecting rod 2 from shaking inside the knife rod 5 and causing the cutter head 1 to shake during use.

[0033] 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.

[0034] 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 cutting aviation alloy aluminum materials, comprising a shank (5), characterized in that: A mounting hole (6) is provided at one end of the knife rod (5), a positioning groove (7) is provided on the inner wall of the mounting hole (6), a connecting rod (2) is provided inside the mounting hole (6), and a clamping groove (4) is provided on the outer surface of the connecting rod (2); The outer surface of the knife rod (5) is provided with a slide groove (8), a clamping block (11) is fixed inside the slide groove (8), a connecting plate (10) is fixed on the top of the clamping block (11), two return springs are fixed on both sides of the connecting plate (10), one end of the slide groove (8) is provided with a slide groove (12), the inner wall of one end of the slide groove (12) is fixed with a telescopic spring (13), one end of the telescopic spring (13) is fixed with a push plate (14), the outer wall of the knife rod (5) is provided with a rotating ring (15), the inner wall of the rotating ring (15) is fixed with a pressure block (16), and the two ends of the rotating ring (15) are fixed with clamping blocks (17).

2. The reamer for cutting aviation alloy aluminum materials according to claim 1, characterized in that: A slot (18) is provided on the outer surface of one end of the rotating ring (15), a fixed plug plate (20) is movably connected inside the slot (18), and a sliding ring (19) is fixed to one end of the fixed plug plate (20).

3. The reamer for cutting aviation alloy aluminum materials according to claim 2, characterized in that: The rotating ring (15) forms a rotating structure with the knife rod (5) through the second clamping block (17), and the sliding ring (19) forms a sliding structure with the knife rod (5).

4. The reamer for cutting aviation alloy aluminum materials according to claim 1, characterized in that: A positioning rod (3) is fixedly connected to the outer wall of the connecting rod (2), and a cutter head (1) is provided at one end of the connecting rod (2).

5. The reamer for cutting aviation alloy aluminum materials according to claim 2, characterized in that: A sliding block (21) is fixed inside the sliding ring (19), a sliding groove (22) is provided outside the sliding block (21), and a telescopic plate (23) is fixed to one end of the sliding ring (19).

6. The reamer for cutting aviation alloy aluminum materials according to claim 5, characterized in that: A telescopic spring (9) is fixed to one end of the telescopic plate (23), and a telescopic groove (24) is fixed to one end of the telescopic spring (9).

7. The reamer for cutting aviation alloy aluminum materials according to claim 6, characterized in that: The connecting rod (2) and the cutter head (1) are an integral fixed structure, and the telescopic plate (23) forms a telescopic structure through a telescopic spring 1 (9) and a telescopic slot (24).

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