A carbide end mill precision adjustment device

Abstract

This utility model discloses a precision adjustment device for carbide end mills, specifically relating to the technical field of end mill adjustment devices. It includes a cutter head with multiple mounting holes arranged in a circular array on its side wall. Each mounting hole can be detachably fixed to a end mill body. A scale is fixed to the top of the cutter head, and multiple positioning blocks arranged in a circular array are fixed to the top of the scale. Each positioning block has a positioning hole, and a positioning rod passes through each positioning hole. A rotating shaft passes through the inside of the cutter head, and a transparent mounting plate is rotatably mounted on the top of the rotating shaft. An adjustment component corresponding to the positioning rod is fixed to the bottom of the transparent mounting plate. This utility model supports the rotation of the cutter head through the transparent mounting plate and the rotating shaft. With the help of the markings on the scale and the precise engagement of the positioning rod and the positioning block, precise adjustment of the end mill body angle can be achieved. Simultaneously, the evenly distributed design of the multiple positioning rods effectively improves the stability of the cutter head during use.

Description

Technical Field

[0001] This utility model relates to the technical field of milling cutter adjustment devices, and more specifically to a carbide milling cutter precision adjustment device. Background Technology

[0002] A milling cutter is a rotating cutting tool with one or more cutting teeth used for milling operations. During operation, each cutting tooth sequentially and intermittently removes the excess material from the workpiece. Through the rotational motion of the milling cutter and the feed motion of the workpiece relative to the cutter, the workpiece is cut, creating various shapes such as planes, steps, grooves, and shaped surfaces. Carbide milling cutters, on the other hand, are milling cutters made from cemented carbide. Carbide is a powder metallurgy product made primarily of micron-sized powder of high-hardness refractory metal carbides, with cobalt or nickel and molybdenum as binders, sintered in a vacuum furnace or hydrogen reduction furnace. Due to its high hardness and wear resistance, it is widely used in precision machining (such as molds and aerospace parts).

[0003] For example, the prior art disclosure number CN214685464U describes a precision adjustment device for an integral cemented carbide tungsten carbide end mill. This utility model uses a structure consisting of a worm, worm wheel, adjusting gear, driven gear, and cutting blade. When a person rotates the worm, the adjusting gear can be driven to rotate, thereby driving multiple screws to rotate synchronously. This causes the cutting blade to slide inside the groove, thus adjusting the cutting precision.

[0004] However, existing technologies still have the following problems in use: When using carbide end mills, the angles of multiple end mills on the cutter head need to be adjusted according to the processing requirements of the workpiece. However, when adjusting manually, the operator needs to use measuring tools to measure and adjust simultaneously, which is time-consuming and laborious. Moreover, errors are prone to occur when using hand-held measuring tools, resulting in low adjustment accuracy and easily affecting the subsequent use of the end mill. Based on this, this utility model provides a carbide end mill adjustment device with high adjustment accuracy. Utility Model Content

[0005] To overcome the aforementioned deficiencies in the prior art, this utility model provides a carbide end mill precision adjustment device. The cutter head is rotated by a transparent mounting plate and a rotating shaft. With the help of the markings on the dial and the precise engagement of the positioning rod and the positioning block, the angle of the end mill body can be precisely adjusted. At the same time, the evenly distributed design of multiple positioning rods can effectively improve the stability of the cutter head during use, thereby solving the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a carbide end mill precision adjustment device, comprising a cutter disc, wherein the side wall of the cutter disc has a plurality of mounting holes arranged in a circular array, and a cutter body can be detachably fixed inside each mounting hole; a scale is fixedly provided on the top of the cutter disc, and a plurality of positioning blocks arranged in a circular array are fixedly provided on the top of the scale, each positioning block has a positioning hole, and a positioning rod passes through the inside of each positioning hole; a rotating shaft passes through the inside of the cutter disc, and a transparent mounting plate is rotatably provided on the top of the rotating shaft; and an adjustment component corresponding to the positioning rod is fixedly provided on the bottom of the transparent mounting plate.

[0007] In a preferred embodiment, each adjustment component includes a vertical plate fixed to the bottom of a transparent mounting plate. The vertical plate is in contact with the outer walls of the cutter head and the dial on the side closest to them. The multiple vertical plates can limit the movement of the cutter head and the dial sidewalls.

[0008] In a preferred embodiment, each vertical plate has a mounting groove at its top, and a through hole is provided on the side of the mounting groove near the dial. An electric push rod is fixed inside the mounting groove, and the piston rod of the electric push rod passes through the through hole and is fixed to one end of the positioning rod. The positioning rod is automatically moved by the electric push rod, thereby improving the adjustment rate of the angle of the cutter head and the milling cutter body.

[0009] In a preferred embodiment, the bottom of the cutter head is provided with a storage hole communicating with the mounting hole, and each storage hole is threaded with a fastening bolt. The cutter head is fixed to the milling cutter body by the fastening bolt, which facilitates the worker to disassemble the milling cutter body for replacement.

[0010] In a preferred embodiment, the top of the transparent mounting plate has multiple observation ports arranged in a circular array around the rotating shaft, which facilitates the operator to view the scale on the dial and thus improves the adjustment accuracy of the cutter head angle.

[0011] In a preferred embodiment, the top of the transparent mounting plate has a plurality of fixing holes arranged in a ring array. The fixing holes are all located outside the plurality of observation ports. The provision of multiple fixing holes is used to improve the firmness of the transparent mounting plate.

[0012] In a preferred embodiment, a brake is fixedly provided at the bottom of the transparent mounting plate. The brake is sleeved on the outside of the rotating shaft to limit the rotation of the rotating shaft, thereby improving the stability of the cutter head and the milling cutter body.

[0013] The technical effects and advantages of this utility model are as follows:

[0014] 1. This utility model supports the rotation of the cutter head by a transparent mounting plate and a rotating shaft. Each positioning hole on the positioning block corresponds one-to-one with the equal division of the scale, that is, one hole corresponds to one degree. With the help of the markings on the scale and the precise engagement of the positioning rod and the positioning block, the angle of the milling cutter body can be precisely adjusted. At the same time, the evenly distributed design of multiple positioning rods can effectively improve the stability of the cutter head during use.

[0015] 2. By setting multiple observation ports on the transparent mounting plate, it is convenient for staff to view the scale lines. In addition, the brake set at the bottom of the transparent mounting plate can fix the rotating shaft, which can further improve the stability of the cutter head and milling cutter body during use. Attached Figure Description

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

[0017] Figure 2 This is a bottom view of the overall structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the dial and positioning components of this utility model;

[0019] Figure 4 for Figure 3 Enlarged view of part A in the image;

[0020] Figure 5 This is a front view of the overall structure of this utility model.

[0021] The attached diagram is labeled as follows: 1. Cutter head; 2. Mounting hole; 3. Milling cutter body; 4. Dial; 5. Positioning block; 6. Positioning hole; 7. Positioning rod; 8. Rotary shaft; 9. Transparent mounting plate; 10. Adjustment assembly; 11. Storage hole; 12. Fastening bolt; 13. Observation port; 14. Fixing hole; 15. Brake;

[0022] 101. Vertical plate; 102. Mounting groove; 103. Perforation; 104. Electric push rod. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Refer to the instruction manual appendix Figures 1-5This utility model provides a carbide end mill precision adjustment device, including a cutter head 1. The side wall of the cutter head 1 has a plurality of mounting holes 2 arranged in a ring array. A cutter body 3 can be detachably fixed inside each mounting hole 2. The cutter body 3 is made of carbide and has high strength and high wear resistance. A scale 4 is fixedly provided on the top of the cutter head 1. A plurality of positioning blocks 5 arranged in a ring array are fixedly provided on the top of the scale 4. Each positioning block 5 has a positioning hole 6. A positioning rod 7 passes through the inside of each positioning hole 6. A rotating shaft 8 passes through the inside of the cutter head 1. A transparent mounting plate 9 is rotatably provided on the top of the rotating shaft 8.

[0025] The bottom of the transparent mounting plate 9 is fixedly provided with an adjustment component 10 corresponding to the positioning rod 7. Specifically, each adjustment component 10 includes a vertical plate 101 fixed to the bottom of the transparent mounting plate 9. The side of the vertical plate 101 near the cutter head 1 and the dial 4 is in contact with the outer wall of both. The top of each vertical plate 101 is provided with a mounting groove 102. The side of the mounting groove 102 near the dial 4 is provided with a through hole 103. An electric push rod 104 is fixedly provided inside the mounting groove 102. The piston rod of the electric push rod 104 passes through the through hole 103 and is fixed to one end of the positioning rod 7.

[0026] The top of the transparent mounting plate 9 has multiple observation ports 13, which are arranged in a circular array around the rotating shaft 8. The bottom of the transparent mounting plate 9 is fixed with a brake 15, which is sleeved on the outside of the rotating shaft 8. The brake 15 is a mechanical device that can decelerate, stop, or keep the moving parts in a stopped state. When the rotating shaft 8 needs to be braked, the operating mechanism on the brake 15 issues a command, and the drive device is activated, so that the brake element is in close contact with the rotating shaft 8, and a huge frictional force is generated between the two, thereby hindering the rotation or movement of the rotating shaft 8.

[0027] In actual use, the operator can adjust the angle of multiple milling cutter bodies 3 using the dial 4 on the cutter head 1. Specifically, the dial 4 is divided into 360 equal divisions, with each division corresponding to 1 degree, and each positioning block 5 corresponds to one division. Before adjusting the angle of the milling cutter body 3, the multiple electric push rods 104 are shortened to move the positioning rod 7 out of the positioning hole 6 in the positioning block 5. Then, the brake 15 at the bottom of the transparent mounting plate 9 is released. The operator rotates the cutter head 1 through the observation port 13. When the milling cutter body 3 reaches the specified angle, one of the electric push rods 104 is extended to drive the positioning rod 7 connected to it to be inserted into the positioning hole 6. Then, the positioning rods 7 on the remaining electric push rods 104 are inserted into the corresponding positioning holes 6. Finally, the brake 15 is used to re-clamp the rotating shaft 8. By using the cooperation of the dial 4, positioning rod 7 and positioning block 5, the angle of the milling cutter body 3 can be precisely adjusted. Moreover, the even design of multiple positioning rods 7 can improve the stability of the cutter head 1.

[0028] Refer to the instruction manual appendix Figure 2 The bottom of the cutter head 1 is provided with a storage hole 11 that communicates with the mounting hole 2. Each storage hole 11 is threaded with a fastening bolt 12. The cutter head 1 is fixed to the milling cutter body 3 by the fastening bolt 12.

[0029] like Figure 1 and Figure 2 As shown, the top of the transparent mounting plate 9 has a plurality of fixing holes 14 arranged in a ring array. The plurality of fixing holes 14 are all located outside the plurality of observation ports 13. The plurality of fixing holes 14 are provided to improve the firmness of the transparent mounting plate 9.

[0030] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A precision adjustment device for a cemented carbide milling cutter, comprising a cutter head (1), a plurality of mounting holes (2) in the form of an annular array are formed in the side wall of the cutter head (1), and a milling cutter body (3) is detachably fixed inside each mounting hole (2), characterized in that: The top of the cutter head (1) is fixedly provided with a scale (4), and the top of the scale (4) is fixedly provided with a plurality of positioning blocks (5) arranged in a ring array, and each positioning block (5) is provided with a positioning hole (6). Each positioning hole (6) has a positioning rod (7) passing through it. The cutter head (1) has a rotating shaft (8) passing through it. The top of the rotating shaft (8) is provided with a transparent mounting plate (9). The bottom of the transparent mounting plate (9) is fixed with an adjustment component (10) corresponding to the positioning rod (7).

2. A precision adjustment device for a cemented carbide milling cutter according to claim 1, characterized in that: Each adjustment assembly (10) includes a vertical plate (101) fixed to the bottom of a transparent mounting plate (9), the vertical plate (101) being in contact with the outer walls of both the cutter head (1) and the dial (4) on the side closest to them.

3. The carbide end mill precision adjustment device according to claim 2, characterized in that: Each vertical plate (101) has a mounting groove (102) at its top. The mounting groove (102) has a through hole (103) on the side near the dial (4). An electric push rod (104) is fixed inside the mounting groove (102). The piston rod of the electric push rod (104) passes through the through hole (103) and is fixed to one end of the positioning rod (7).

4. The carbide end mill precision adjustment device according to claim 1, characterized in that: The cutter head (1) has a storage hole (11) at the bottom that communicates with the mounting hole (2). Each storage hole (11) is threaded with a fastening bolt (12). The cutter head (1) is fixed to the milling cutter body (3) by the fastening bolt (12).

5. The carbide end mill precision adjustment device according to claim 1, characterized in that: The transparent mounting plate (9) has multiple observation ports (13) on its top, and the multiple observation ports (13) are arranged in a ring array with the rotating shaft (8) as the center.

6. The carbide end mill precision adjustment device according to claim 5, characterized in that: The top of the transparent mounting plate (9) has multiple fixing holes (14) arranged in a ring array, and the multiple fixing holes (14) are all located outside the multiple observation ports (13).

7. The carbide end mill precision adjustment device according to claim 1, characterized in that: A brake (15) is fixedly provided at the bottom of the transparent mounting plate (9). The brake (15) is sleeved on the outside of the rotating shaft (8) to restrict the rotation of the rotating shaft (8).

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