Milling cutter with anti-shaking fixed structure

Abstract

The utility model relates to the technical field of cutter body fixing, in particular to a milling cutter with an anti-shaking fixing structure, which overcomes the defect of cutter body fixing in the prior art and comprises a cutter body, a cutter handle is arranged at one end of the cutter body, an upper cover is rotatably connected to one side of the cutter handle, and a pair of wedge blocks is fixedly connected to the outer ring of the upper cover. A clamping rod is rotationally connected into the cutter handle, a chamfer angle is arranged on the surface of the clamping rod and used for assisting the wedge block to abut against the clamping rod and enable the clamping rod to rotate, an ejector rod is fixedly connected to one side of the clamping rod, clamping grooves are formed in the two sides of the cutter handle and matched with the ejector rod in size and position, and a screw rod is fixedly connected to one side of the upper cover. The surface of the screw rod is in threaded connection with a threaded cylinder, the surface of the threaded cylinder is fixedly connected with a pair of guide plates, the guide plates are in sliding connection with the inner wall of the cutter handle, and the interior of the cutter handle is in threaded connection with a locking screw.

Description

Technical Field

[0001] The utility model relates to the technical field of cutter body fixing, in particular to a milling cutter with an anti-shake fixing structure. Background Art

[0002] During the product processing, a milling cutter is required for processing special holes. The milling cutter head is set vertically to the fixed sleeve. The rotation of the rotating shaft drives the side milling cutter head to change the processing direction. When the torque of the rotating shaft is relatively large, it will cause the milling cutter head to vibrate. The vibration of the milling cutter head will affect the processing accuracy. The collision between the milling cutter head and the workpiece will also damage the cutter head. The existing milling cutter head fixing structure is often complex in structure, the operation remains unchanged, or the fixing effect is general, so some improvements are needed.

[0003] In the existing patent publication number CN211680203U, a side milling cutter fixed sleeve is disclosed, including a fixed sleeve with a rotating shaft at the center, a milling cutter head and the fixed sleeve are vertically arranged, and an auxiliary bracket is arranged on the side of the fixed sleeve. The auxiliary bracket includes an arc-shaped top frame and a side frame. The arc of the top frame is consistent with the fixed sleeve. The top frame and the bottom of the fixed sleeve are fixed by bolts. The side frame is arranged below the top frame. The two side frames are arranged side by side, and the side frames are vertically arranged with the top frame. The side frames are against the fixed disk and the side of the milling cutter head connecting disk. This fixed sleeve is against the fixed disk and the side of the milling cutter head connecting disk through the side frame of the auxiliary bracket, which plays an auxiliary stabilizing role on the side milling cutter head. Through the auxiliary bracket, the side of the milling cutter head connecting disk is abutted. Although the surface is in multi-directional contact, the force direction is only the top, and the fixing effect is general.

[0004] Therefore, it is necessary to design a milling cutter with an anti-shake fixed structure that is highly practical and stable. Utility Model Content

[0005] The utility model aims to provide a milling cutter with an anti-shake fixing structure to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a milling cutter with an anti-shake fixed structure, comprising a cutter body, a cutter handle is provided at one end of the cutter body, an upper cover is rotatably connected to one side of the cutter handle, a pair of wedges are fixedly connected to the outer ring of the upper cover, a clamping rod is rotatably connected to the inside of the cutter handle, a chamfer is provided on the surface of the clamping rod, the chamfer is used to assist the wedge to support the clamping rod and make the clamping rod rotate, a push rod is fixedly connected to one side of the clamping rod, and slots are provided on both sides of the cutter handle, the slots are adapted to the size and position of the push rod, a screw is fixedly connected to one side of the upper cover, a threaded barrel is threadedly connected to the surface of the screw, a pair of guide plates are fixedly connected to the surface of the threaded barrel, the guide plates are slidably connected to the inner wall of the cutter handle, and a locking screw is threadedly connected to the inside of the cutter handle.

[0007] According to the above technical solution, a spring is arranged between the outer wall of the handle and the clamping rod.

[0008] According to the above technical solution, an inner groove is provided at one end of the cutter body, and the size of the inner groove is adapted to the threaded barrel.

[0009] According to the above technical solution, a clamping ring is fixedly connected to the surface of the knife body, and a groove is provided at one end of the knife handle to be clamped with the clamping ring.

[0010] Compared with the prior art, the beneficial effects achieved by the utility model are:

[0011] (1) By setting a wedge clamping rod and a threaded cylinder, the slot corresponds to the position of the push rod, and the upper cover is rotated, and the wedge fixed on the upper cover surface rotates with it, and the surface of the wedge presses against the chamfered surface of the clamping rod. Since the clamping rod is rotatably connected to the inside of the tool handle, the wedge presses against the inclined surface of the clamping rod to exert force. Figure 2 Therefore, the clamping rod will generate force toward the surface of the tool handle and clockwise force. The force toward the surface of the tool handle drives the push rod to squeeze into the slot to complete the clamping. At the same time, the rotation of the upper cover also drives the screw fixed on one side to rotate. The surface of the screw is threadedly connected with a threaded barrel. The threaded barrel is fixed with guide plates on both sides, and the guide plates are slidingly connected to the inner wall of the tool handle. The rotation of the screw causes the threaded barrel to apply extrusion force downward. At this time, the clamping rod and the push rod have completed the clamping of the slot, and then the locking screw is rotated to move the threaded barrel into the tool handle to fix it. When the threaded barrel is fixed, due to the self-locking property of the thread, the position of the upper cover and the screw is also fixed, so that the wedge block keeps the clamping rod fixed, and the entire tool body is subjected to force in three directions: left, right and upper. The structure is stable and will not shake.

[0012] (2) A spring is provided, and when the wedge block is released from squeezing the clamp rod, the spring can be used to reset the clamp rod by utilizing the elastic force of the spring, thereby making it easier to remove the cutter body.

[0013] (3) A clamping ring is provided, which is clamped with a groove provided on the surface of one end of the tool handle, so that the tool body is subjected to force in three directions, thereby making the structure more stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0015] Figure 2 It is a schematic diagram of the threaded barrel assembly of the utility model;

[0016] Figure 3 It is a schematic diagram of the clamp ring of the utility model;

[0017] Figure 4 It is a schematic diagram of the card slot of the utility model;

[0018] In the figure: 1. knife body; 2. knife handle; 3. upper cover; 4. wedge; 5. clamping rod; 6. spring; 7. push rod; 8. slot; 9. locking screw; 10. screw rod; 11. threaded barrel; 12. guide plate; 13. inner groove; 14. retaining ring. DETAILED DESCRIPTION

[0019] 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.

[0020] See also Figure 1-4 The utility model provides a technical solution: a milling cutter with an anti-shake fixed structure, including a cutter body 1, a cutter handle 2 is arranged at one end of the cutter body 1, an upper cover 3 is rotatably connected to one side of the cutter handle 2, a pair of wedges 4 are fixedly connected to the outer ring of the upper cover 3, a clamping rod 5 is rotatably connected inside the cutter handle 2, a chamfer is arranged on the surface of the clamping rod 5, and the chamfer is used to assist the wedge 4 to support the clamping rod 5 and make the clamping rod 5 rotate, a push rod 7 is fixedly connected to one side of the clamping rod 5, a card groove 8 is arranged on both sides of the cutter handle 2, and the card groove 8 is adapted to the size and position of the push rod 7, a screw rod 10 is fixedly connected to one side of the upper cover 3, a threaded tube 11 is threadedly connected to the surface of the screw 10, a pair of guide plates 12 are fixedly connected to the surface of the threaded tube 11, the guide plate 12 is slidably connected to the inner wall of the cutter handle 2, and a locking screw 9 is threadedly connected to the inside of the cutter handle 2.

[0021] Specifically, insert the knife body 1 into the knife handle 2 so that the slot 8 corresponds to the position of the push rod 7, rotate the upper cover 3, and the wedge block 4 fixed on the surface of the upper cover 3 rotates accordingly, and the surface of the wedge block 4 presses against the chamfered surface of the clamping rod 5. Since the clamping rod 5 is rotatably connected to the inside of the knife handle 2, the wedge block 4 moves to press against the inclined surface of the clamping rod 5 to exert force. Figure 2 Therefore, the clamping rod 5 will generate a force toward the surface of the tool handle 2 and a clockwise force. The force toward the surface of the tool handle 2 drives the push rod 7 to be squeezed into the slot 8 to complete the clamping. At the same time, the rotation of the upper cover 3 also drives the screw 10 fixed on one side to rotate. The surface of the screw 10 is threadedly connected with a threaded barrel 11. The threaded barrel 11 is fixedly connected with guide plates 12 on both sides. The guide plates 12 are slidingly connected to the inner wall of the tool handle 2. The rotation of the screw 10 causes the threaded barrel 11 to apply an extrusion force downward. At this time, the clamping rod 5 and the push rod 7 have completed the clamping of the slot 8. Then the locking screw 9 is rotated to move the threaded barrel 11 into the tool handle 2 to fix it. When the threaded barrel 11 is fixed, due to the self-locking property of the thread, the positions of the upper cover 3 and the screw 10 are also fixed, so that the wedge block 4 keeps the clamping rod 5 fixed, and the entire tool body 1 is subjected to forces in three directions: left, right and upper. The structure is stable and will not shake.

[0022] A spring 6 is provided between the outer wall of the knife handle 2 and the clamping rod 5 .

[0023] Specifically, the spring 6 is used to reset the clamping rod 5 by utilizing the elastic force of the spring 6 when the wedge block 4 is released from squeezing the clamping rod 5, so that the knife body 1 can be taken out more easily.

[0024] An inner groove 13 is provided at one end of the cutter body 1 , and the size of the inner groove 13 is adapted to the threaded barrel 11 .

[0025] Specifically, the inner groove 13 facilitates the displacement and insertion of the threaded barrel 11, making its stress points more uniform. Figure 1 The pressure applied from top to bottom is more even.

[0026] A clamping ring 14 is fixedly connected to the surface of the knife body 1 , and a groove is provided at one end of the knife handle 2 to be clamped with the clamping ring 14 .

[0027] Specifically, the clamping ring 14 is clamped with a groove provided on the surface of one end of the handle 2, and cooperates with the blade body 1 to bear force in three directions, making the structure more stable.

[0028] 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.

Claims

1. A milling cutter with an anti-shake fixed structure, comprising a cutter body (1), characterized in that: A knife handle (2) is provided at one end of the knife body (1), and an upper cover (3) is rotatably connected to one side of the knife handle (2), and a pair of wedge blocks (4) are fixedly connected to the outer ring of the upper cover (3). A clamping rod (5) is rotatably connected inside the knife handle (2), and a chamfer is provided on the surface of the clamping rod (5). The chamfer is used to assist the wedge block (4) to support the clamping rod (5) and rotate the clamping rod (5). A push rod (7) is fixedly connected to one side of the clamping rod (5), and slots (8) are provided on both sides of the knife handle (2). The size and position of the slots (8) are adapted to the push rod (7). A screw rod (10) is fixedly connected to one side of the upper cover (3), and a threaded tube (11) is threadedly connected to the surface of the screw rod (10). A pair of guide plates (12) are fixedly connected to the surface of the threaded tube (11), and the guide plates (12) are slidably connected to the inner wall of the knife handle (2). A locking screw (9) is threadedly connected to the inside of the knife handle (2).

2. A milling cutter with an anti-shake fixing structure according to claim 1, characterized in that: A spring (6) is provided between the outer wall of the knife handle (2) and the clamping rod (5).

3. The milling cutter with an anti-shake fixing structure according to claim 1, characterized in that: An inner groove (13) is provided at one end of the cutter body (1), and the size of the inner groove (13) is adapted to the threaded barrel (11).

4. The milling cutter with an anti-shake fixing structure according to claim 1, characterized in that: A clamping ring (14) is fixedly connected to the surface of the knife body (1), and a groove is provided at one end of the knife handle (2) for clamping with the clamping ring (14).

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