Sectional type cutting milling cutter with length convenient to adjust

Abstract

The invention relates to the technical field of mechanical cutter machining, in particular to a sectional type cutting milling cutter convenient to adjust the length, which comprises a cutter head mechanism, a connecting mechanism and an output mechanism, the cutter head mechanism comprises a cutter head body, a first fixing ring is fixedly connected to the lower end of the cutter head wall of the cutter head body, and a chip groove is formed in the cutter head wall of the cutter head body; a plurality of first notches distributed around the circle center in an array mode are formed in the outer wall of each first fixing ring, first insertion holes are formed in the inner side walls of the first notches, and a plurality of first threaded holes are fixedly connected to the edge of the bottom end of the tool bit body; according to the connecting rod for the milling cutter, the connecting strength between every two sections is improved, instability caused by direct threaded connection is avoided, and therefore the service life of the milling cutter is prolonged.

Description

Technical Field

[0001] The invention relates to the technical field of mechanical processing tools, in particular to a segmented cutting milling cutter which is convenient for adjusting the length. Background Art

[0002] In mechanical manufacturing, milling operations are performed on workpieces by milling cutters to process various shapes such as planes, steps, grooves, and formed surfaces. It is widely used in many industries such as automotive parts manufacturing, aerospace parts processing, and mold manufacturing.

[0003] However, current cutting milling cutters are generally directly connected by threads to adjust the length of the milling cutter. However, this method will lead to poor stability of the cutting milling cutter, which will greatly damage the milling cutter during processing and reduce its service life. Therefore, it is necessary to propose a segmented cutting milling cutter that is easy to adjust the length. Summary of the invention

[0004] In view of the problems in the prior art, the present invention provides a segmented cutting milling cutter which is easy to adjust the length.

[0005] The technical solution adopted by the present invention to solve its technical problems is: a segmented cutting milling cutter that is easy to adjust the length, including a cutter head mechanism, a connecting mechanism and an output mechanism, the cutter head mechanism includes a cutter head body, a first fixing ring is fixedly connected to the lower end of the cutter head wall of the cutter head body, a chip removal groove is opened on the cutter head wall of the cutter head body, a plurality of first notches distributed in a circle center array are opened on the outer wall of the first fixing ring, a plurality of first notches are opened on the inner side walls thereof, a plurality of first threaded holes are fixedly connected to the bottom edge of the cutter head body, and a first clamping groove is opened in the middle of the bottom end of the cutter head body; The connecting mechanism includes a connecting rod body, a clamping rod is fixedly connected to the middle of the top and bottom ends of the connecting rod body, the upper and lower ends of the outer wall of the connecting rod body are embedded with a first rotating ring for rotation, the upper and lower ends of the two first rotating rings are fixedly connected to a limiting ring, the inner side walls of the two first rotating rings are fixedly connected to an inner ring, and the inner side walls of the two inner rings are fixedly connected to a plurality of tooth blocks, annular grooves are provided inside the upper and lower ends of the connecting rod body near the inner ring, the inner walls of the two annular grooves are penetrated by a plurality of rotating rods distributed in a circle array, and a plurality of the rotating rods extend through and extend to the top and bottom end surfaces, and the rod walls of a plurality of the rotating rods are located in the annular grooves The transmission gears are fixedly connected to the parts, and several of the transmission gears are meshed with several tooth blocks, the tops of several rotating rods are fixedly connected to threaded rods, the upper and lower edges of the outer wall of the connecting rod body are embedded with second rotating rings for rotation, the upper and lower ends of the connecting rod body are internally provided with several rotating grooves at the upper end of the second rotating ring, the upper and lower ends of the two second rotating rings are fixedly connected to several rotating blocks, several springs are fixedly connected between the rotating blocks and the rotating grooves, the upper ends of the arc-shaped outer walls of the two second rotating rings at the upper and lower ends are fixedly connected to several L-shaped mounting rods, and the outer walls of one side of several mounting rods are fixedly connected to plug rods; The output end mechanism includes an output rod body, a second fixing ring is fixedly connected to the upper end of the rod wall of the output rod body, a second notch is opened on the arc-shaped outer wall of the second fixing ring, a second insertion hole is opened on one side of the inner wall of several second notches, a second clamping groove is opened in the middle of the top end of the output rod body, and several second threaded holes are opened at the edge of the top end of the output rod body.

[0006] Specifically, a plurality of the insertion rods at both ends are respectively clamped in the first insertion hole and the second insertion hole.

[0007] Specifically, the outer walls of the two clamping rods are fixedly connected with a plurality of protrusions, and the two clamping rods arranged at the upper and lower ends are clamped in the first clamping groove and the second clamping groove.

[0008] Specifically, the arc-shaped outer walls of the first rotating ring and the second rotating ring are both provided with a plurality of concave grooves.

[0009] Specifically, a plurality of the threaded rods are threadedly connected to the first threaded hole and the second threaded hole.

[0010] Specifically, a plurality of the rotating blocks are all clamped in the rotating groove.

[0011] Specifically, the two inner rings are both clamped in the annular groove.

[0012] Beneficial effects of the present invention: By setting a first rotating ring that rotates the upper and lower ends respectively, and then using the connecting rod body, annular groove, inner ring, several tooth blocks, transmission gears, and rotating rod in linkage and coordination, several threaded rods can be driven to be respectively inserted into the first threaded hole and the second threaded hole, so that the connecting rod body, the output rod body, and the cutter head body can be further connected to each other, and the connection strength is high, avoiding the instability caused by direct threaded connection, thereby increasing the service life of the milling cutter.

[0013] By setting up a second swivel ring, several swivel blocks, a rotating groove, a spring, a mounting rod, an insertion rod, a first fixing ring, a second fixing ring, a first notch, a second notch, a first socket, and a second socket for coordinated use, several insertion rods can be inserted into the first socket and the second socket, thereby further improving the connection strength between the connecting rod body, the output rod body, and the cutter head body. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0015] Figure 1 It is a schematic diagram of the overall separation structure of the present invention; Figure 2 It is a schematic cross-sectional structural diagram of the milling cutter body of the present invention; Figure 3 It is a schematic diagram of the output section body structure of the present invention; Figure 4 It is a schematic diagram of the structure of the connecting section body of the present invention; Figure 5 It is a schematic diagram of the cross-sectional structure of the connecting section body of the present invention; Figure 6 For the present invention Figure 5 A is an enlarged structural diagram; Figure 7 For the present invention Figure 5 A schematic diagram of the enlarged structure at B; Figure 8 It is a schematic diagram of the cross-sectional structure of the second swivel of the present invention.

[0016] In the figure: 1. cutter head mechanism; 101. chip removal groove; 102. first notch; 103. first plug hole; 104. first threaded hole; 105. first clamping groove; 11. cutter head body; 12. first fixed ring; 2. connecting mechanism; 201. annular groove; 202. rotating groove; 21. connecting rod body; 22. clamping rod; 23. first swivel; 24. limiting ring; 25. inner ring; 26. tooth block; 27. rotating rod; 28. transmission gear; 29. ​​threaded rod; 211. second swivel; 212. rotating block; 213. spring; 214. mounting rod; 215. plug rod; 3. output end mechanism; 301. second notch; 302. second plug hole; 303. second clamping groove; 304. second threaded hole; 31. output rod body; 32. second fixed ring. DETAILED DESCRIPTION

[0017] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0018] like Figure 1-Figure 8 As shown, a segmented cutting milling cutter that is easy to adjust the length of the present invention comprises a cutter head mechanism 1, a connecting mechanism 2 and an output end mechanism 3, the cutter head mechanism 1 comprises a cutter head body 11, a first fixing ring 12 is fixedly connected to the lower end of the cutter head wall of the cutter head body 11, a chip removal groove 101 is provided on the cutter head wall of the cutter head body 11, a plurality of first notches 102 distributed in a circle array are provided on the outer wall of the first fixing ring 12, a plurality of first notches 102 are provided on the inner side walls thereof with first jacks 103, a plurality of first threaded holes 104 are fixedly connected to the bottom edge of the cutter head body 11, and a first clamping groove 105 is provided in the middle of the bottom end of the cutter head body 11; The connecting mechanism 2 includes a connecting rod body 21, a clamping rod 22 is fixedly connected to the middle of the top and bottom ends of the connecting rod body 21, the upper and lower ends of the outer wall of the connecting rod body 21 are embedded with a first rotating ring 23 for rotation, the upper and lower ends of the two first rotating rings 23 are fixedly connected to the limiting ring 24, the inner side walls of the two first rotating rings 23 are fixedly connected to the inner ring 25, the inner side walls of the two inner rings 25 are fixedly connected to a plurality of tooth blocks 26, annular grooves 201 are opened on the inner side of the upper and lower ends of the connecting rod body 21 near the inner ring 25, the inner walls of the two annular grooves 201 are penetrated by a plurality of rotating rods 27 distributed in a circle array, and the plurality of rotating rods 27 extend through and extend to the top and bottom end surfaces, and the rod walls of the plurality of rotating rods 27 located inside the annular grooves 201 are fixedly connected Transmission gears 28, and several transmission gears 28 are meshed and connected with several tooth blocks 26, several rotating rods 27 are fixedly connected with threaded rods 29 at the top ends, and second rotating rings 211 are embedded and rotatably connected at the upper and lower edges of the outer wall of the connecting rod body 21, and several rotating grooves 202 are opened inside the upper and lower ends of the connecting rod body 21 at the upper end of the second rotating ring 211, and the upper and lower ends of the two second rotating rings 211 are fixedly connected with several rotating blocks 212, and springs 213 are fixedly connected between the rotating blocks 212 and the rotating grooves 202, and the upper ends of the arc-shaped outer walls of the two second rotating rings 211 at the upper and lower ends are fixedly connected with several L-shaped mounting rods 214, and the outer walls of one side of the several mounting rods 214 are fixedly connected with plug rods 215; The output end mechanism 3 includes an output rod body 31, a second fixing ring 32 is fixedly connected to the upper end of the rod wall of the output rod body 31, a second notch 301 is opened on the arc-shaped outer wall of the second fixing ring 32, a second plug hole 302 is opened on one side of the inner wall of several second notches 301, a second card groove 303 is opened in the middle of the top end of the output rod body 31, and several second threaded holes 304 are opened at the edge of the top end of the output rod body 31.

[0019] Specifically, a plurality of plug rods 215 at both ends are respectively clamped in the first plug hole 103 and the second plug hole 302 , and the plurality of plug rods 215 can be inserted into the first plug hole 103 and the second plug hole 302 .

[0020] Specifically, the outer walls of the two clamping rods 22 are fixedly connected with a plurality of protrusions, and the two clamping rods 22 arranged at the upper and lower ends are both clamped in the first clamping slot 105 and the second clamping slot 303. The clamping of the clamping rods 22 arranged at both ends into the first clamping slot 105 and the second clamping slot 303 can improve the stability of the connection.

[0021] Specifically, the arc-shaped outer walls of the first rotating ring 23 and the second rotating ring 211 are both provided with a plurality of grooves, and the plurality of grooves can increase the friction between the palm and the hand.

[0022] Specifically, the plurality of threaded rods 29 are all threadedly connected to the first threaded hole 104 and the second threaded hole 304 . The plurality of threaded rods 29 are threadedly connected to the first threaded hole 104 and the second threaded hole 304 , which can further increase stability.

[0023] Specifically, a plurality of rotating blocks 212 are all stuck in the rotating groove 202 , and the rotating blocks 212 will slide along the rotating groove 202 to compress the spring 213 .

[0024] Specifically, the two inner rings 25 are both stuck in the annular groove 201 , the annular groove 201 can limit the inner rings 25 , and the inner rings 25 are both slidably connected to the annular groove 201 .

[0025] When in use, first align the clamping rod 22 at the lower end of the connecting rod body 21 with the second clamping groove 303 of the output end mechanism 3, and then rotate the first swivel ring 23 set at the lower end. The first swivel ring 23 rotates through the inner ring 25 to drive the plurality of tooth blocks 26 to rotate. The plurality of tooth blocks 26 will engage and drive the transmission gear 28, so that the transmission gear 28 drives the threaded rod 29 to rotate through the rotating rod 27. When the plurality of threaded rods 29 are threadedly connected to the corresponding second threaded holes 304, when the threaded rod 29 rotates into the plurality of second threaded holes 304, the clamping rod 22 will also be clamped into the second clamping groove 303. When the clamping rod 22 at the lower end is clamped into the second clamping groove 303, the connecting rod body 21 and the output rod body 31 are initially fixed, and when the plurality of threaded rods 29 are clamped into the second threaded holes 304, the connecting rod body can be further strengthened. 21 and the output rod body 31 are stable. When the plurality of threaded rods 29 are fully inserted into the second threaded hole 304, the staff rotates the second swivel 211 set at the upper end to slide the compression spring 213 along the rotating groove 202 through the swivel block 212. At this time, the second swivel 211 will drive the insertion rod 215 to move to one side through the mounting rod 214. When the plurality of threaded rods 29 are fully inserted into the second threaded hole 304, the plurality of mounting rods 214 will enter the second slot 301. After the second swivel 211 is released, the insertion rod 215 can be driven to be inserted into the second insertion hole 302 under the action of the spring 213 to reset. This can increase the connection strength between the connecting rod body 21 and the output rod body 31. Then, the connecting rod body 21 and the cutter head body 11 can be connected in the same way, so that the length of the cutting milling cutter can be adjusted.

[0026] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of the present invention is defined by the attached claims and their equivalents.

Claims

1. A segmented cutting milling cutter that is easy to adjust in length, comprising a cutter head mechanism (1), a connecting mechanism (2) and an output end mechanism (3), characterized in that: The cutter head mechanism (1) comprises a cutter head body (11), a first fixing ring (12) is fixedly connected to the lower end of the cutter head wall of the cutter head body (11), a chip removal groove (101) is provided on the cutter head wall of the cutter head body (11), a plurality of first notches (102) distributed in a circle array are provided on the outer wall of the first fixing ring (12), a plurality of first notches (102) are provided on the inner side walls thereof with first insertion holes (103), a plurality of first threaded holes (104) are fixedly connected to the bottom edge of the cutter head body (11), and a first clamping groove (105) is provided in the middle of the bottom end of the cutter head body (11).

2. A segmented cutting milling cutter that is easy to adjust in length according to claim 1, characterized in that: The connecting mechanism (2) comprises a connecting rod body (21), a clamping rod (22) is fixedly connected to the middle of the top and bottom ends of the connecting rod body (21), a first rotating ring (23) is embedded and rotatably connected to the upper and lower ends of the outer wall of the connecting rod body (21), the upper and lower ends of the two first rotating rings (23) are fixedly connected to the limit ring (24), the inner side walls of the two first rotating rings (23) are fixedly connected to the inner ring (25), the inner side walls of the two inner rings (25) are fixedly connected to a plurality of tooth blocks (26), and the upper and lower ends of the connecting rod body (21) are internally connected to the inner An annular groove (201) is provided on one side close to the inner ring (25), and a plurality of rotating rods (27) distributed in a circle array are rotatably connected to the inner walls of the two annular grooves (201), and the plurality of rotating rods (27) extend through the inner walls to the top and bottom end surfaces, and the rod walls of the plurality of rotating rods (27) located inside the annular grooves (201) are fixedly connected to transmission gears (28), and the plurality of transmission gears (28) are meshedly connected to the plurality of tooth blocks (26), and the top ends of the plurality of rotating rods (27) are fixedly connected to threaded rods (29).

3. A segmented cutting milling cutter that is easy to adjust in length according to claim 2, characterized in that: A second rotating ring (211) is embedded and rotatably connected at the upper and lower edges of the outer wall of the connecting rod body (21); a plurality of rotating grooves (202) are provided inside the upper and lower ends of the connecting rod body (21) at the upper end of the second rotating ring (211); a plurality of rotating blocks (212) are fixedly connected at the upper and lower ends of the two second rotating rings (211); a plurality of springs (213) are fixedly connected between the plurality of rotating blocks (212) and the rotating grooves (202); a plurality of L-shaped mounting rods (214) are fixedly connected at the upper ends of the arc-shaped outer walls of the two second rotating rings (211) at the upper and lower ends; and a plurality of insert rods (215) are fixedly connected to the outer walls on one side of the plurality of mounting rods (214).

4. A segmented cutting milling cutter that is easy to adjust in length according to claim 3, characterized in that: The output end mechanism (3) comprises an output rod body (31), the upper end of the rod wall of the output rod body (31) is fixedly connected to a second fixing ring (32), the arc-shaped outer wall of the second fixing ring (32) is provided with a second notch (301), a second insertion hole (302) is provided on one side of the inner wall of a plurality of the second notches (301), a second clamping groove (303) is provided in the middle of the top end of the output rod body (31), and a plurality of second threaded holes (304) are provided at the edge of the top end of the output rod body (31).

5. A segmented cutting milling cutter with easy length adjustment according to claim 4, characterized in that: A plurality of the insertion rods (215) at both ends are respectively clamped in the first insertion hole (103) and the second insertion hole (302).

6. A segmented cutting milling cutter with easy length adjustment according to claim 5, characterized in that: The outer walls of the two clamping rods (22) are both fixedly connected with a plurality of protrusions, and the two clamping rods (22) arranged at the upper and lower ends are both clamped in the first clamping groove (105) and the second clamping groove (303).

7. A segmented cutting milling cutter with easy length adjustment according to claim 6, characterized in that: The arc-shaped outer walls of the first rotating ring (23) and the second rotating ring (211) are both provided with a plurality of concave grooves.

8. The segmented cutting milling cutter with easy length adjustment according to claim 7, characterized in that: The plurality of threaded rods (29) are all threadedly connected to the first threaded hole (104) and the second threaded hole (304).

9. A segmented cutting milling cutter with easy length adjustment according to claim 8, characterized in that: A plurality of the rotating blocks (212) are all clamped in the rotating groove (202).

10. The segmented cutting milling cutter with easy length adjustment according to claim 9, characterized in that: The two inner rings (25) are both clamped in the annular groove (201).

Images