Milling tool

Abstract

The utility model discloses a milling cutter which comprises a cutter head and a cutter handle, the cutter head is installed on the cutter handle in a threaded fit mode through a fixing sleeve on the inner side, the other end of the cutter handle is fixedly connected with a fixing base, arc-shaped clamping blocks are arranged on the two sides of the bottom of the fixing base, and supporting plates are arranged on the portions, on the outer sides of the arc-shaped clamping blocks, of the fixing base. Threaded rods are fixedly connected to the middle positions of the supporting plates through bearings in threaded fit, extrusion blocks are arranged at the ends, close to the cutter handle, of the threaded rods, and the other sides of the extrusion blocks are attached to the outer sides of the arc-shaped clamping blocks. Secondary clamping and fixing are carried out at the installation position of the cutter handle, the cutter handle is prevented from falling off when the cutter works, heat dissipation can be carried out on the cutter through the heat dissipation holes when the cutter works, and the heat dissipation effect of the cutter is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of milling cutters, in particular to a milling cutter. Background Art

[0002] Milling tools are mainly used to process planes, steps, grooves, formed surfaces and cut off workpieces on milling machines. Milling cutters are rotating tools with one or more teeth used for milling. They are widely used as cutting tools in mechanical processing to process curved surfaces and planes of various shapes. During operation, each tooth cuts off the excess of the workpiece intermittently in turn.

[0003] In the prior art, general milling tools are not fixed at the fixed installation position for a second time, which will cause the tool to fall off due to excessive force during processing, thereby affecting the processing results. In addition, the high-speed rotating tool will gradually heat up during processing. If the heat is not dissipated, the processing effect will be affected. Utility Model Content

[0004] The purpose of the utility model is to provide a milling cutter to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a milling tool, comprising a cutter head and a cutter handle, the cutter head being installed on the cutter handle through a threaded fitting of an inner fixing sleeve, and heat dissipation rods are evenly arranged on the fixing sleeve on the side of the cutter head close to the fixing seat, the other end of the cutter handle is fixedly connected to the fixing seat, and arc-shaped clamping blocks are arranged on both sides of the bottom of the fixing seat, support plates are arranged on the fixing seats on the outer sides of the arc-shaped clamping blocks, and threaded rods are fixedly connected to the middle positions of the support plates through threaded bearings, an extrusion block is arranged on the end of the threaded rod close to the cutter handle, and the other side of the extrusion block is in contact with the outer side of the arc-shaped clamping block.

[0006] Preferably, heat dissipation holes are evenly arranged on the cutter head, and a dustproof net is arranged on the side of the heat dissipation holes away from the fixing seat.

[0007] Preferably, a mounting groove is provided in the middle position of the bottom of the fixing seat, and an annular protective ring is provided in the fixing seat outside the mounting groove.

[0008] Preferably, springs are evenly arranged inside the annular protective ring, and an anti-wear pad is arranged on the inner side of the annular protective ring.

[0009] Preferably, sliding grooves are provided in the fixing seats on both sides of the installation groove, and sliding blocks are provided in the sliding grooves, and the other ends of the sliding blocks are connected to the arc-shaped clamping blocks.

[0010] Preferably, an insertion rod is provided at the other end of the knife handle, and the other end of the insertion rod is adapted to the mounting groove.

[0011] Preferably, a locking block matched with the locking hole in the mounting groove is evenly arranged on the outer side of the other end of the insertion rod, and the knife handle is connected to the fixing seat by embedding the locking block on the insertion rod into the mounting groove.

[0012] Preferably, arc-shaped blades are evenly arranged on the outer side of the cutter head, and the blades of the cutter head are all coated with a chromium aluminum nitride coating.

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows: the milling tool, through the staff rotating the threaded rod on the outer side of the support plate, causes the threaded rod to drive the extrusion block to extrude the arc-shaped clamping block inward, causes the arc-shaped clamping block to move on the slide groove through the slider, causes the arc-shaped clamping block to clamp and fix the tool handle to prevent the tool handle from falling off due to excessive force, when the tool rotates to prepare the workpiece, the high-speed rotation will cause the tool to heat up, and the heat can be dissipated through the heat dissipation holes when heated, and the dustproof net can be used to prevent debris from clogging the heat dissipation holes, and at the same time, when the tool rotates, it can drive the heat dissipation rod on the fixed sleeve to rotate together to dissipate heat, thereby improving its heat dissipation effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0015] Figure 2 It is a schematic diagram of the main and cross-sectional structure of the slideway, arc-shaped clamping block and threaded rod of the utility model;

[0016] Figure 3 This is a schematic diagram of the main structure of the knife handle and the insert rod of the utility model;

[0017] Figure 4 This is a schematic diagram of the cutter head structure of the utility model when viewed from above;

[0018] Figure 5 This is a schematic diagram of the cross-sectional structure of the fixing seat of the utility model when viewed from above;

[0019] In the figure: 1. cutter head; 2. cutter handle; 3. fixed seat; 4. support plate; 5. heat dissipation rod; 6. fixed sleeve; 7. threaded rod; 8. extrusion block; 9. arc clamping block; 10. slider; 11. bearing; 12. slide groove; 13. plug rod; 14. locking block; 15. dustproof net; 16. heat dissipation hole; 17. mounting groove; 18. anti-wear pad; 19. spring; 20. annular protective ring. DETAILED DESCRIPTION

[0020] 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. 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.

[0021] See also Figure 1-5 , an embodiment of the utility model: a milling tool, including a cutter head 1 and a cutter handle 2, arc-shaped blades are uniformly arranged on the outer side of the cutter head 1, and the blades of the cutter head 1 are coated with a chromium nitride aluminum coating, the cutter head 1 is installed on the cutter handle 2 through a threaded fitting of an inner fixing sleeve 6, and a heat dissipation rod 5 is uniformly arranged on the fixing sleeve 6 on the side of the cutter head 1 close to the fixing seat 3, the other end of the cutter handle 2 is fixedly connected with the fixing seat 3, and arc-shaped clamping blocks 9 are arranged on both sides of the bottom of the fixing seat 3, support plates 4 are arranged on the fixing seat 3 outside the arc-shaped clamping blocks 9, and the middle position of the support plates 4 is fixedly connected with a threaded rod 7 through a threaded bearing 11, an extrusion block 8 is arranged on the end of the threaded rod 7 close to the cutter handle 2, and the other side of the extrusion block 8 is connected to the arc The outer side of the arc-shaped clamping block 9 fits together, and the fixed seats 3 on both sides of the installation groove 17 are provided with slide grooves 12, and the slide grooves 12 are provided with sliders 10, and the other end of the slider 10 is connected to the arc-shaped clamping block 9, so that the staff can install the fixing sleeve 6 on the inner side of the cutter head 1 on the handle 2, and then install the other end of the handle 2 on the fixed seat 3, which is convenient for installation. After installation, the threaded rod 7 on the outer side of the support plate 4 can be rotated to drive the extrusion block 8 to squeeze the arc-shaped clamping block 9 inward, so that the arc-shaped clamping block 9 moves on the slide groove 12 through the slider 10, so that the arc-shaped clamping block 9 clamps and fixes the handle 2 to prevent the handle 2 from falling off due to excessive force, and the chromium aluminum nitride coating can be evenly coated on the blade of the cutter head 1 to improve the wear resistance and high temperature resistance of the blade;

[0022] The cutter head 1 is evenly provided with heat dissipation holes 16, and a dustproof net 15 is provided on the side of the heat dissipation holes 16 away from the fixed seat 3, so that when the cutter is rotating to prepare the workpiece, the heat is dissipated through the heat dissipation holes 16, and the dustproof net 15 prevents debris from clogging the heat dissipation holes 16. When the cutter rotates, the fixed sleeve 6 inside the cutter head 1 also rotates together, so that the heat dissipation rod 5 on the fixed sleeve 6 rotates to dissipate heat, which can improve its heat dissipation effect;

[0023] A mounting groove 17 is provided in the middle of the bottom of the fixing seat 3, and an annular protective ring 20 is provided in the fixing seat 3 outside the mounting groove 17, and springs 19 are evenly provided in the annular protective ring 20, and an anti-wear pad 18 is provided on the inner side of the annular protective ring 20, so that the tool will drive the whole vibration when working, so that the insertion rod 13 also vibrates in the mounting groove 17, so that the insertion rod 13 is damped by the action of the annular protective ring 20, so as to prevent its vibration friction from being too large, causing deformation of the mounting groove 17;

[0024] An insert rod 13 is provided at the other end of the knife handle 2, and the other end of the insert rod 13 is adapted to the mounting groove 17, and a locking block 14 adapted to the locking hole in the mounting groove 17 is evenly provided on the outer side of the other end of the insert rod 13, and the knife handle 2 is embedded in the mounting groove 17 and connected to the fixing seat 3 through the locking block 14 on the insert rod 13, so that the staff can embed the insert rod 13 at one end of the knife handle 2 into the mounting groove 17 to fix it to the fixing seat 3, which is convenient for the staff to quickly replace the knife handle 2.

[0025] When the embodiment of the present application is in use, a chromium aluminum nitride coating is evenly applied on the blade of the cutter head 1 to improve the wear resistance and high temperature resistance of the blade. Then, the staff installs the fixing sleeve 6 on the inner side of the cutter head 1 on the handle 2, and then inserts the insertion rod 13 at one end of the handle 2 into the installation groove 17 to fix it with the fixing seat 3, so that the staff can quickly replace the handle 2. After installation, the threaded rod 7 on the outer side of the support plate 4 can be rotated to make the threaded rod 7 drive the extrusion block 8 to squeeze the arc clamping block 9 inward, so that the arc clamping block 9 moves on the slide groove 12 through the slider 10, so that the arc clamping The block 9 clamps and fixes the tool handle 2 to prevent the tool handle 2 from falling off due to excessive force. When the tool is working, the heat can be dissipated through the heat dissipation holes 16, and the dustproof net 15 can prevent debris from clogging the heat dissipation holes 16. When the tool rotates, it can drive the fixed sleeve 6 to rotate together, so that the heat dissipation rod 5 on the fixed sleeve 6 rotates to dissipate heat, which can improve its heat dissipation effect. At the same time, the tool will also vibrate, so that the insertion rod 13 also vibrates in the installation groove 17. The insertion rod 13 can be damped by the action of the annular protective ring 20 to prevent its vibration friction from being too large, causing the installation groove 17 to deform.

[0026] Obviously, the embodiments described above are only some embodiments of the utility model, not all embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the utility model.

Claims

1. A milling tool, characterized in that: The invention comprises a cutter head (1) and a cutter handle (2), wherein the cutter head (1) is installed on the cutter handle (2) through a threaded fitting of an inner fixing sleeve (6), and a heat dissipation rod (5) is evenly arranged on the fixing sleeve (6) on the side of the cutter head (1) close to the fixing seat (3), the other end of the cutter handle (2) is fixedly connected to the fixing seat (3), and arc-shaped clamping blocks (9) are arranged on both sides of the bottom of the fixing seat (3), a support plate (4) is arranged on the fixing seat (3) outside the arc-shaped clamping block (9), and a threaded rod (7) is fixedly connected to the middle position of the support plate (4) through a threaded fitting bearing (11), and an extrusion block (8) is arranged on the end of the threaded rod (7) close to the cutter handle (2), and the other side of the extrusion block (8) is in contact with the outer side of the arc-shaped clamping block (9).

2. A milling tool according to claim 1, characterized in that: The cutter head (1) is evenly provided with heat dissipation holes (16), and a dustproof net (15) is provided on the side of the heat dissipation holes (16) away from the fixing seat (3).

3. A milling tool according to claim 1, characterized in that: A mounting groove (17) is provided in the middle of the bottom of the fixing seat (3), and an annular protective ring (20) is provided inside the fixing seat (3) outside the mounting groove (17).

4. A milling tool according to claim 3, characterized in that: Springs (19) are evenly arranged inside the annular protective ring (20), and an anti-wear pad (18) is arranged on the inner side of the annular protective ring (20).

5. A milling tool according to claim 3, characterized in that: The fixing seats (3) on both sides of the installation groove (17) are provided with sliding grooves (12), and the sliding grooves (12) are provided with sliding blocks (10), and the other ends of the sliding blocks (10) are connected to the arc-shaped clamping blocks (9).

6. A milling tool according to claim 1, characterized in that: The other end of the knife handle (2) is provided with an insertion rod (13), and the other end of the insertion rod (13) is matched with the installation groove (17).

7. A milling tool according to claim 6, characterized in that: The outer side of the other end of the insert rod (13) is evenly provided with a locking block (14) adapted to the locking hole in the mounting groove (17), and the knife handle (2) is connected to the fixing seat (3) by embedding the locking block (14) on the insert rod (13) into the mounting groove (17).

8. The milling tool according to claim 1, characterized in that: The outer side of the cutter head (1) is evenly provided with arc-shaped blades, and the blades of the cutter head (1) are all coated with a chromium aluminum nitride coating.

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