A composite thread milling cutter with protective function

Abstract

The utility model belongs to the technical field of composite thread milling cutters, and particularly relates to a composite thread milling cutter with a protective function. In view of the problem that the existing milling cutter body and shank are integrally formed, and the length of the shank is fixed, and the length of the milling cutter cannot be flexibly adjusted according to different milling requirements, resulting in the problem of inconvenience in use, the following scheme is proposed, including a milling cutter head and a milling cutter shank fixed on the top of the milling cutter head, an adjustment rod is arranged on the outside of the milling cutter shank, and five adjustment holes are opened on the outer surface of the adjustment rod, and a clamping groove is arranged below the adjustment hole. The utility model rotates the adjustment bolt, and the adjustment bolt drives the adjustment block to fix the adjustment rod under the action of the reset spring and the support plate, and then slides the adjustment rod to clamp the adjustment block with the adjustment holes at different heights, so as to facilitate the adjustment of the length of the tool, avoid the problem that the cutter body and the shank are integrally formed, and the length of the shank is fixed, and the length of the milling cutter cannot be flexibly adjusted according to different milling requirements, resulting in the problem of inconvenience in use.

Description

Technical Field

[0001] The utility model relates to a composite thread milling cutter, in particular to a composite thread milling cutter with a protective function, belonging to the technical field of composite thread milling cutters. Background Art

[0002] A milling cutter is a rotary tool with one or more teeth used for milling. During operation, each tooth cuts off the excess of the workpiece intermittently in sequence. Milling cutters are mainly used to process planes, steps, grooves, forming surfaces and cut off workpieces on milling machines. As a type of milling cutter, thread milling cutters have great advantages in processing accuracy and processing efficiency, and are not restricted by thread structure and thread rotation direction during processing. For example, a thread milling cutter can process internal and external threads of various rotation directions.

[0003] In the prior art, a drilling and threading composite milling cutter disclosed in announcement number CN216177356U includes a cutter body and a cutter handle, and the cutter body and the cutter handle are integrally formed; the cutter body includes a cutting edge and an empty cutter groove, and the empty cutter groove is arranged between the cutting edge and the cutter handle; the cutting edge is a spiral groove structure, and a cutter body gap structure is arranged on the cutting edge.

[0004] In the above technical solution, since the cutter body and the shank are integrally formed and the length of the shank is fixed, the length of the milling cutter cannot be flexibly adjusted according to different milling requirements, resulting in inconvenience in use. In view of this, a composite thread milling cutter with a protective function is provided to overcome the above defects. Utility Model Content

[0005] The utility model provides a composite thread milling cutter with a protective function to solve the problem that the milling cutter body and the shank are integrally formed, the length of the shank is fixed, and the length of the milling cutter cannot be flexibly adjusted according to different milling requirements, resulting in inconvenience in use.

[0006] The utility model achieves the above-mentioned purpose through the following technical solutions: a composite thread milling cutter with a protective function, comprising a milling cutter head and a milling cutter handle fixed on the top of the milling cutter head, and an adjustment rod is arranged on the outer side of the milling cutter handle;

[0007] The outer surface of the adjusting rod is provided with five adjusting holes, a clamping groove is provided below the adjusting holes, a handle is provided outside the adjusting holes, and an adjusting bolt is threadedly connected to the left side of the handle;

[0008] The bottom end of the adjusting bolt is fixedly connected to a support plate through a bearing, one side of the support plate is fixedly connected to two return springs, the other side of the support plate is fixedly connected to an adjusting block, and the return spring and the handle are fixedly connected.

[0009] As a further solution of the utility model: the adjustment hole matches the size of the adjustment block, a slide bar is fixedly connected to one side of the adjustment rod, a slide groove is opened on the inner wall of the handle, and the adjustment rod forms a sliding structure between the slide bar and the handle.

[0010] As a further solution of the utility model: a thread groove is provided on the outer surface of the handle, a protective ring is threadedly connected to the outer side of the handle, and a protective cover is provided below the protective ring.

[0011] As a further solution of the utility model: a magnetic strip is fixedly connected to the bottom end surface of the protective ring, four positioning holes are opened inside the protective ring, and a positioning block is fixedly connected to the top end of the protective cover, and the positioning block matches the size of the positioning hole.

[0012] As a further solution of the utility model: a compression spring is fixed inside the milling cutter handle, a pressure block is fixedly connected to one side of the compression spring, and a clamping block is fixedly connected to the top end of the pressure block.

[0013] As a further solution of the utility model: the size of the clamping block matches the clamping groove, the inside of the handle is fixedly connected to the damper, the outside of the damper is provided with a buffer spring, one side of the damper is fixedly connected to the buffer block, and the buffer spring and the handle are fixedly connected.

[0014] As a further solution of the utility model: both sides of the buffer block are fixedly connected with sliders, the outer side of the slider is slidably connected with a slide rod, and the slide rod is fixedly connected to the handle.

[0015] As a further solution of the utility model: the outer side of the bottom end of the adjusting rod is threadedly connected with two fastening screws, and the fastening screws penetrate the inner wall of the adjusting rod and are threadedly connected with the milling cutter handle.

[0016] The beneficial effects of the utility model are:

[0017] 1. By turning the adjusting bolt, the adjusting bolt drives the adjusting block to fix the adjusting rod under the action of the reset spring and the support plate, and then slides the adjusting rod to engage the adjusting block with the adjusting holes at different heights, so as to facilitate the adjustment of the length of the tool and avoid the tool body and the tool handle being integrally formed. The length of the tool handle is fixed, and the length of the milling cutter cannot be flexibly adjusted according to different milling requirements, resulting in the problem of inconvenience in use.

[0018] 2. Connect the protective ring to the handle by thread, and fix the protective cover to the bottom of the protective ring through a magnetic strip, so that the protective cover can protect the tool from dust after work, thereby increasing the service life of the tool. At the same time, the positioning block at the top of the protective cover is engaged with the positioning hole, which enhances the stability of the connection between the protective cover and the protective ring. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the structure of the protective ring and protective cover of the utility model;

[0021] Figure 3 This is a schematic diagram of the disassembly structure of the device of the utility model;

[0022] Figure 4 It is a schematic diagram of the internal structure of the device of the utility model.

[0023] In the figure: 1. milling cutter head; 2. milling cutter handle; 3. clamping block; 4. adjusting rod; 5. adjusting hole; 6. fastening screw; 7. handle; 8. adjusting bolt; 9. protective ring; 10. protective cover; 11. magnetic strip; 12. positioning block; 13. slide bar; 14. slide groove; 15. compression spring; 16. pressure block; 17. reset spring; 18. support plate; 19. adjusting block; 20. slider; 21. slide rod; 22. buffer block; 23. damper; 24. buffer spring. DETAILED DESCRIPTION

[0024] 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

[0025] like Figures 1 to 4 As shown, a composite thread milling cutter with a protective function comprises a milling cutter head 1 and a milling cutter handle 2 fixed to the top of the milling cutter head 1, and an adjusting rod 4 is arranged on the outer side of the milling cutter handle 2;

[0026] The outer surface of the adjusting rod 4 is provided with five adjusting holes 5, a clamping groove is provided below the adjusting hole 5, a handle 7 is provided outside the adjusting hole 5, and an adjusting bolt 8 is threadedly connected to one side of the handle 7;

[0027] The bottom end of the adjusting bolt 8 is fixedly connected to a support plate 18 via a bearing. Two return springs 17 are fixedly connected to one side of the support plate 18. An adjusting block 19 is fixedly connected to the other side of the support plate 18. The return spring 17 and the handle 7 are fixedly connected. Embodiment 2

[0028] In addition to all the technical features of the first embodiment, this embodiment also includes:

[0029] The adjustment hole 5 matches the size of the adjustment block 19, a slide bar 13 is fixedly connected to one side of the adjustment rod 4, a slide groove 14 is provided on the inner wall of the handle 7, and the adjustment rod 4 forms a sliding structure through the slide bar 13 and the handle 7. The setting of the slide bar 13 and the slide groove 14 facilitates the movement of the adjustment rod 4 to adjust the length of the milling cutter.

[0030] A threaded groove is provided on the outer surface of the handle 7, and a protective ring 9 is threadedly connected to the outer side of the handle 7. A protective cover 10 is provided below the protective ring 9. The protective cover 10 can be used to protect the tool from dust after the tool finishes working, thereby increasing the service life of the tool.

[0031] The bottom end surface of the protective ring 9 is fixedly connected with a magnetic strip 11, and four positioning holes are opened inside the protective ring 9. The top of the protective cover 10 is fixedly connected with a positioning block 12, and the positioning block 12 matches the size of the positioning hole. The setting of the positioning block 12 and the magnetic strip 11 enhances the tightness of the connection between the protective ring 9 and the protective cover 10. Embodiment 3

[0032] In addition to all the technical features of the first embodiment, this embodiment also includes:

[0033] A compression spring 15 is fixed inside the milling cutter handle 2, and a pressure block 16 is fixedly connected to one side of the compression spring 15. A clamping block 3 is fixedly connected to the top of the pressure block 16. By pressing the clamping block 3, the clamping block 3 can be engaged with the clamping hole on the surface of the adjusting rod 4 with the cooperation of the pressure block 16 and the compression spring 15, thereby completing the assembly of the milling cutter handle 2 and the adjusting rod 4.

[0034] The clamping block 3 matches the size of the clamping groove, and a damper 23 is fixedly connected to the inside of the handle 7. A buffer spring 24 is provided on the outside of the damper 23, and a buffer block 22 is fixedly connected to one side of the damper 23. The buffer spring 24 and the handle 7 are fixedly connected. The combination of the buffer spring 24 and the damper 23 is convenient for reducing the amplitude and frequency of vibration to a smaller range during the operation of the composite thread milling cutter, thereby improving the stability of the composite thread milling cutter. The presence of the buffer block 22 can provide a certain buffering effect, thereby reducing the amplitude of vibration of the device, having a protective effect on the device, and improving the service life of the device.

[0035] Slide blocks 20 are fixedly connected to both sides of the buffer block 22, and a slide rod 21 is slidably connected to the outer side of the slide block 20. The slide rod 21 and the handle 7 are fixedly connected. The sliding connection between the slide block 20 and the slide rod 21 facilitates the limit function of the device for buffering and shock absorption, thereby ensuring the stability of the device during buffering movement.

[0036] The outer side of the bottom end of the adjusting rod 4 is threadedly connected to two fastening screws 6, which pass through the inner wall of the adjusting rod 4 and are threadedly connected to the milling cutter handle 2. The setting of the fastening screws 6 can fix the connection between the milling cutter handle 2 and the adjusting rod 4, thereby ensuring the stability of the connection between the milling cutter handle 2 and the adjusting rod 4.

[0037] Working principle: first press the clamping block 3, which can be engaged with the clamping hole on the surface of the adjusting rod 4 under the cooperation of the pressure block 16 and the compression spring 15, so as to complete the assembly of the milling cutter head 1 and the adjusting rod 4, and turn the fastening screw 6 to disassemble or fasten the milling cutter handle 2 and the adjusting rod 4, and then turn the adjusting bolt 8, and the adjusting bolt 8 drives the adjusting block 19 to fix the adjusting rod 4 under the action of the return spring 17 and the support plate 18, and then slide the adjusting rod 4 to engage the adjusting block 19 with the adjusting holes 5 of different heights to adjust the tool length, wherein the sliding bar 13 fixed on the right side of the adjusting rod 4 is engaged with the sliding groove 14, which enhances the tightness of the connection. When the adjusting rod 4 is squeezed and the slow When the punch block 22 is pressed, the combination of the buffer spring 24 and the damper 23 can reduce the amplitude and frequency of vibration to a smaller range during the operation of the composite thread milling cutter, thereby improving the stability of the composite thread milling cutter, and the existence of the buffer block 22 can provide a certain buffering effect, wherein the sliding connection between the slider 20 and the slide rod 21 is convenient for limiting the buffering and shock absorption of the device, thereby ensuring the stability of the device during buffering movement, and finally the protective ring 9 is threadedly connected to the handle 7, and the protective cover 10 is fixed to the bottom end of the protective ring 9 by the magnetic strip 11. At the same time, the positioning block 12 at the top of the protective cover 10 is engaged with the positioning hole, which enhances the stability of the connection between the protective cover 10 and the protective ring 9.

[0038] 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.

[0039] 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 composite thread milling cutter with a protective function, comprising a milling cutter head (1) and a milling cutter handle (2) fixed to the top of the milling cutter head (1), characterized in that: An adjustment rod (4) is provided on the outer side of the milling cutter handle (2); The outer surface of the adjusting rod (4) is provided with five adjusting holes (5), a clamping groove is provided below the adjusting hole (5), a handle (7) is provided outside the adjusting hole (5), and an adjusting bolt (8) is threadedly connected to one side of the handle (7); The bottom end of the adjusting bolt (8) is fixedly connected to a support plate (18) via a bearing, one side of the support plate (18) is fixedly connected to two return springs (17), the other side of the support plate (18) is fixedly connected to an adjusting block (19), and the return spring (17) is fixedly connected to the handle (7).

2. The composite thread milling cutter with protective function according to claim 1, characterized in that: The adjustment hole (5) matches the size of the adjustment block (19); a slide bar (13) is fixedly connected to one side of the adjustment rod (4); a slide groove (14) is provided on the inner wall of the handle (7); and the adjustment rod (4) forms a sliding structure with the handle (7) through the slide bar (13).

3. The composite thread milling cutter with protective function according to claim 1, characterized in that: The outer surface of the handle (7) is provided with a thread groove, the outer side of the handle (7) is threadedly connected to a protective ring (9), and a protective cover (10) is provided below the protective ring (9).

4. The composite thread milling cutter with protective function according to claim 3, characterized in that: The bottom end surface of the protective ring (9) is fixedly connected to a magnetic strip (11), four positioning holes are provided inside the protective ring (9), and the top end of the protective cover (10) is fixedly connected to a positioning block (12), the positioning block (12) matching the size of the positioning hole.

5. The composite thread milling cutter with protective function according to claim 1, characterized in that: A compression spring (15) is fixed inside the milling cutter handle (2), a pressure block (16) is fixedly connected to one side of the compression spring (15), and a clamping block (3) is fixedly connected to the top end of the pressure block (16).

6. The composite thread milling cutter with protective function according to claim 5, characterized in that: The size of the clamping block (3) matches that of the clamping groove; a damper (23) is fixedly connected inside the handle (7); a buffer spring (24) is arranged outside the damper (23); a buffer block (22) is fixedly connected to one side of the damper (23); and the buffer spring (24) is fixedly connected to the handle (7).

7. The composite thread milling cutter with protective function according to claim 6, characterized in that: Both sides of the buffer block (22) are fixedly connected to sliders (20), the outer side of the slider (20) is slidably connected to a slide bar (21), and the slide bar (21) is fixedly connected to the handle (7).

8. The composite thread milling cutter with protective function according to claim 1, characterized in that: The outer side of the bottom end of the adjusting rod (4) is threadedly connected to two fastening screws (6), and the fastening screws (6) penetrate the inner wall of the adjusting rod (4) and are threadedly connected to the milling cutter handle (2).

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