A deep hole high-speed coated alloy milling cutter with a secondary cutting edge structure

Abstract

The present invention relates to the field of tool technology, and specifically to a deep-hole high-speed coated alloy milling cutter with a secondary cutting edge structure, comprising a mounting ring, a bracket, an internally threaded sleeve, a first clamping component, a tool holder clamping component, a tool holder and a milling cutter body. The invention solves the problem in the traditional clamping method that, due to the presence of an oil film between the inner hole of the tool holder and the outer diameter of the milling cutter shank, the clamping force is uneven, and the milling cutter may gradually extend from the tool holder and even fall off completely, causing the workpiece to be scrapped; and solves the problem that the milling cutter working process is high-speed deep-hole machining, so the milling cutter blade is easily blunted, resulting in the milling hole not meeting the use requirements and the milling cutter needing to be replaced. During the replacement, the entire spring jacket needs to be removed and the old tool needs to be disassembled, and then the entire spring jacket and the new tool need to be installed in the machining center, and the replacement process is cumbersome and inefficient.

Description

Technical Field

[0001] The invention relates to the technical field of cutting tools, in particular to a deep-hole high-speed coated alloy milling cutter with a secondary cutting edge structure. Background Art

[0002] A milling cutter is a rotary tool with one or more teeth used for milling. It's primarily used on milling machines to machine planes, steps, grooves, formed surfaces, and cut off workpieces. In practice, milling cutters with different structures are generally selected based on their intended use, such as single-edge, multi-edge, and cutters with secondary cutting edges. Coated alloy milling cutters are used for milling deep holes. During milling, the high-speed rotation of the secondary cutting edge determines the hole diameter, while the primary cutting edge provides vertical feed.

[0003] At present, most existing machining centers use a spring collet clamping method when installing milling cutters. When in use, the milling cutter is in a cantilevered state. Due to the oil film between the inner hole of the tool holder and the outer diameter of the milling cutter shank, the clamping force is uneven, resulting in the milling cutter gradually extending from the tool holder during the milling process, and even falling off completely, causing the workpiece to be scrapped; in addition, since the milling cutter is a high-speed deep hole processing, the milling cutter is easily blunted during the processing, resulting in the milling hole not meeting the use requirements and the milling cutter needs to be replaced. When replacing, the entire spring collet needs to be removed and the old tool needs to be disassembled, and then the entire spring collet and the new tool need to be installed in the machining center. The replacement process is cumbersome and inefficient. Summary of the Invention

[0004] In response to the deficiencies in the prior art, the present invention provides a deep-hole, high-speed coated alloy milling cutter with a secondary cutting edge structure. The milling cutter shank is first clamped and fixed by a provided shank clamping component, then fixedly installed in a mounting ring, and finally screwed onto the output shaft of a milling machine machining center. This solves the problem of uneven tool clamping force in the existing machining center tool using a spring collet, which causes the milling cutter to fall off and the workpiece to be scrapped. At the same time, the above-mentioned installation method allows for targeted disassembly and replacement of damaged parts during replacement, solving the problem of the traditional installation method in which the entire spring collet needs to be removed for replacement, resulting in a cumbersome replacement process and low efficiency.

[0005] The technical solution adopted by the present invention to solve the above technical problems is: a deep hole high-speed coated alloy milling cutter with a secondary cutting edge structure, comprising:

[0006] Mounting ring;

[0007] Brackets, the brackets are fixedly mounted on the upper end surface of the mounting ring and are evenly distributed along the circumference thereof;

[0008] An internally threaded sleeve, the internally threaded sleeve being fixedly mounted on the inner side of the upper end of the bracket;

[0009] A first clamping member, the first clamping member being symmetrically arranged on the left and right sides of the mounting ring and being in sliding connection with the mounting ring;

[0010] A tool handle clamping component is coaxially arranged on the inner side of the mounting ring;

[0011] The knife handle is fixedly arranged on the inner side of the knife handle clamping part, the knife handle is thick at the top and thin at the bottom, and a threaded section is provided at the upper end of the knife handle, and tooth-shaped grooves are evenly provided along the circumference of the knife handle near the upper end;

[0012] The milling cutter body is mounted on the lower end of the shank in a detachable connection manner and has a secondary cutting edge structure.

[0013] Preferably, the mounting ring has symmetrically provided parent-child mounting grooves on the left and right sides, a first clamping unit is slidably installed inside the parent-child mounting grooves, and the mounting ring has symmetrically provided sliding holes on the front and back sides, a snap-on unit is slidably arranged in the sliding holes, and the snap-on unit is fixedly connected to the first clamping unit.

[0014] Preferably, a T-shaped clamping rod is provided in the described mother-and-child mounting groove for sliding through, and the end of the T-shaped clamping rod located on the inner side of the mounting ring is fixedly connected to an arc limit plate, an extrusion spring is provided on the T-shaped clamping rod between the arc limit plate and the mother-and-child mounting groove, and a cross bar is fixedly connected to the middle of the concave arc surface of the arc limit plate, and an arc abutment plate is fixedly installed on the end of the cross bar away from the arc limit plate, and abutment protrusions are evenly provided on the concave arc surface of the arc abutment plate, and plug-in holes are evenly provided in the middle of the upper end surface of the T-shaped clamping rod from left to right, and a vertical hole is provided at the upper end of the mother-and-child mounting groove, and a plug-in rod is provided in the vertical hole for sliding through, and the lower end of the plug-in rod is inserted in the plug-in hole.

[0015] Preferably, the arc-shaped limit plate is fixedly and symmetrically connected to the middle of the front and rear side walls with an arc-shaped elastic steel plate. The arc-shaped elastic steel plate is a J-shaped structure and its opposite end cross-section is triangular. A reinforcement rod is fixedly installed between the concave arc surface of the arc-shaped elastic steel plate and the arc-shaped abutment plate. A ball head L-shaped pull rod is slidably installed in the sliding hole. The ball head L-shaped pull rod is fixedly connected to the arc-shaped elastic steel plate, and a tensioning spring is sleeved on the ball head L-shaped pull rod between the arc-shaped elastic steel plate and the sliding hole.

[0016] Preferably, a shank ring is provided on the inner side of the first clamping component, arc blocks are symmetrically installed in the middle of the front and rear side walls of the shank ring, clamping blocks are symmetrically installed in the middle of the left and right side walls of the shank ring, a screw connection unit is provided on the upper end of the shank ring, shank clamping units are symmetrically provided in the front and rear middle of the inner side of the shank ring, an oil removal unit is provided below the shank clamping unit, and the oil removal unit is provided inside the shank ring.

[0017] Preferably, the side wall of the arc block away from the handle ring is provided with a limiting slide symmetrically on both sides, and a clamping groove is provided in the middle of the limiting slide.

[0018] Preferably, abutment holes matching the abutment protrusions are evenly formed on the side wall of the arc-shaped clamping block along its arc direction.

[0019] Preferably, vertical rods are symmetrically installed in the middle of the left and right sides of the upper end surface of the handle ring, a sliding ring is provided on the vertical rod, a support spring is provided on the vertical rod between the sliding ring and the handle ring, a connecting rod is fixedly connected to the sliding ring, and the end of the connecting rod away from the sliding ring is fixedly connected to an internal threaded ring plate, and the internal threaded ring plate and the mounting ring are coaxially arranged.

[0020] Preferably, a rectangular groove is symmetrically provided in the front and back middle part of the inner side of the hilt ring, a trapezoidal block is provided inside the rectangular groove, a pressure rod is fixedly connected to the side wall of the trapezoidal block, the end of the pressure rod away from the trapezoidal block passes through the inner side of the hilt ring and is fixedly connected to the clamping teeth, a return spring is provided on the pressure rod between the trapezoidal block and the side wall of the rectangular groove, a threaded hole is provided above the rectangular groove, a T-shaped threaded rod is screwed into the threaded hole, and the lower end of the T-shaped threaded rod slides and abuts against the inclined surface of the trapezoidal block.

[0021] Preferably, a cylindrical slide groove is evenly opened along the circumference of the handle ring near the lower end, and a T-shaped slide rod is slidably installed in the cylindrical slide groove through a connecting spring. The T-shaped slide rod extends to the inner side of the handle ring away from the end of the connecting spring and is fixedly connected to an oil-absorbing sponge block. The side wall of the oil-absorbing sponge block away from the T-shaped slide rod is an arc-shaped structure.

[0022] Beneficial effects of the present invention:

[0023] 1) The milling cutter shank is clamped and fixed by the shank clamping component, and then the shank together with the shank clamping component is fixedly installed in the mounting ring, and finally the mounting ring and the output shaft of the milling machine processing center are screwed together by the internal threaded sleeve. Compared with the traditional spring collet installation method, the clamping and fixing method adopted by the present invention is more firmly fixed and will not cause the tool shaking caused by uneven clamping force during the milling process, thereby improving the processing accuracy. At the same time, the oil film on the end of the shank can be automatically wiped off during the installation process of the shank, which solves the problem that the tool is easy to fall off during the processing and cause damage to the workpiece.

[0024] 2) The installation method adopted by the present invention allows different accessories to be manually replaced according to the damaged position of the tool when the tool is damaged. During disassembly, the damaged part can be directly removed without removing the entire tool. This makes the tool more targeted, simple to replace, and highly efficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The present invention will be further described below with reference to the accompanying drawings and examples.

[0026] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0027] Figure 2 This invention Figure 1 A schematic diagram of the three-dimensional structure after removing the bracket and the internal threaded sleeve;

[0028] Figure 3 It is a schematic diagram of the three-dimensional structure of the mounting ring and the first clamping member in the present invention;

[0029] Figure 4 It is a schematic diagram of the three-dimensional structure of the tool holder clamping component, tool holder and milling cutter body in the present invention;

[0030] Figure 5 It is a schematic diagram of the three-dimensional structure of the tool handle and the milling cutter body in the present invention;

[0031] Figure 6 It is a schematic diagram of a transverse cross-sectional three-dimensional structure of the mounting ring, the first clamping component and the tool handle clamping component in the present invention;

[0032] Figure 7 It is a schematic diagram of the cross-sectional three-dimensional structure of the tool holder clamping component, tool holder and milling cutter body in the present invention;

[0033] Figure 8 It is a structural schematic diagram of the tool handle ring, arc block and oil removal unit in the present invention.

[0034] In the picture:

[0035] 1. Mounting ring; 2. Bracket; 3. Internally threaded sleeve;

[0036] 4. First clamping member; 41. Mother-child mounting slot;

[0037] 42. First clamping unit; 421. T-shaped clamping rod; 422. Arc-shaped limiting plate; 423. Extrusion spring; 424. Crossbar; 425. Arc-shaped abutting plate; 426. Abutting protrusion; 427. Connecting rod; 428. Connecting hole;

[0038] 43. Sliding hole;

[0039] 44. Clamping unit; 441. Arc-shaped elastic steel plate; 442. Reinforcement rod; 443. Ball-end L-shaped pull rod; 444. Tension spring;

[0040] 5. Tool handle clamping component; 51. Tool handle ring; 52. Arc block; 521. Limiting slide; 522. Clamping groove; 53. Arc clamping block; 531. Abutment hole;

[0041] 54. Screw connection unit; 541. Vertical rod; 542. Sliding ring; 543. Connecting rod; 544. Internally threaded ring plate; 545. Support spring;

[0042] 55. Tool holder clamping unit; 551. Rectangular slot; 552. Trapezoidal block; 553. Press rod; 554. Return spring; 555. Clamping teeth; 556. T-shaped threaded rod;

[0043] 56. Oil removal unit; 561. Columnar slide; 562. Connecting spring; 563. T-shaped slide bar; 564. Oil absorbing sponge block;

[0044] 6. Tool handle; 61. Threaded section; 62. Tooth groove; 7. Milling cutter body. DETAILED DESCRIPTION

[0045] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods. Example 1

[0046] See Figures 1 to 3 as well as Figure 6 A deep-hole high-speed coated alloy milling cutter with a secondary cutting edge structure includes a mounting ring 1, a bracket 2 fixedly mounted on the upper end surface of the mounting ring 1 and evenly distributed along its circumference, an internally threaded sleeve 3 fixedly mounted on the inner side of the upper end of the bracket 2, a first clamping component 4 symmetrically arranged on the left and right sides of the mounting ring 1 and slidingly connected to the mounting ring 1, the left and right sides of the mounting ring 1 are symmetrically provided with mother-and-child mounting grooves 41, and a first clamping unit 42 is slidably installed inside the mother-and-child mounting grooves 41, and sliding holes 43 are symmetrically opened inside the front and back sides of the mounting ring 1, a snap-on unit 44 is slidably provided in the sliding hole 43, and the snap-on unit 44 is fixedly connected to the first clamping unit 42.

[0047] A T-shaped clamping rod 421 is provided to slide through the described mother-and-child mounting groove 41, and the end of the T-shaped clamping rod 421 located on the inner side of the mounting ring 1 is fixedly connected to an arc-shaped limit plate 422, and an extrusion spring 423 is sleeved on the T-shaped clamping rod 421 between the arc-shaped limit plate 422 and the mother-and-child mounting groove 41, and a cross bar 424 is fixedly connected to the middle part of the concave arc surface of the arc-shaped limit plate 422, and an arc-shaped abutment plate 425 is fixedly installed on the end of the cross bar 424 away from the arc-shaped limit plate 422, and abutment protrusions 426 are evenly provided on the concave arc surface of the arc-shaped abutment plate 425, and plug-in holes 428 are evenly provided in the middle part of the upper end surface of the T-shaped clamping rod 421 from left to right, and a vertical hole is provided at the upper end of the mother-and-child mounting groove 41, and a plug-in rod 427 is provided to slide through the vertical hole, and the lower end of the plug-in rod 427 is inserted into the plug-in hole 428.

[0048] The arc-shaped limit plate 422 is fixedly and symmetrically connected to the middle of the front and rear side walls with an arc-shaped elastic steel plate 441. The arc-shaped elastic steel plate 441 is a J-shaped structure and its opposite end cross-section is triangular. A reinforcement rod 442 is fixedly installed between the concave arc surface of the arc-shaped elastic steel plate 441 and the arc-shaped abutment plate 425. A ball head L-shaped pull rod 443 is slidably installed in the sliding hole 43. The ball head L-shaped pull rod 443 is fixedly connected to the arc-shaped elastic steel plate 441, and a tensioning spring 444 is sleeved on the ball head L-shaped pull rod 443 between the arc elastic steel plate 441 and the sliding hole 43.

[0049] During specific work, the mounting ring 1 is manually held and the internal threaded sleeve 3 is tightened to be installed on the output shaft of the milling machine machining center. At this time, the mounting ring 1 and the output shaft of the milling machine machining center are fixedly connected, and then the ball head L-shaped pull rod 443 is manually pulled forward and backward. Since the arc-shaped elastic steel plate 441 has a certain deformation ability, under the action of external tension, the end of the arc-shaped elastic steel plate 441 away from the arc-shaped limit plate 422 will move toward the direction close to the inner wall of the mounting ring 1. At this time, the tool handle clamping component 5 is manually placed on the inner side of the mounting ring 1, and then the ball head L-shaped pull rod 443 is loosened. Under the combined action of the reaction force of the tensioning spring 444 and the deformation force of the arc-shaped elastic steel plate 441 itself, the arc-shaped elastic steel plate 441 can clamp the tool handle. The tightening component 5 plays a role of preliminary limiting, and finally the tool handle clamping component 5 is pushed upward until the middle of the tool handle clamping component 5 is aligned with the first clamping unit 42. At this time, the T-shaped clamping rod 421 is pressed inward manually, and under the action of the arc-shaped limiting plate 422, the cross bar 424 and the arc-shaped abutment plate 425, the abutment protrusion 426 can clamp and fix the clamping component 5. Finally, the plug-in rod 427 is pressed downward manually so that the lower end of the plug-in rod 427 is inserted into the plug-in hole 428. Under the action of the extrusion spring 423, there will be a certain extrusion force between the T-shaped clamping rod 421 and the plug-in rod 427, and the extrusion force can make the plug-in rod 427 firmly inserted in the plug-in hole 428. At this point, the installation process of the tool handle clamping component 5 is completed. Example 2

[0050] The technical solution is basically the same as that of embodiment 1, see Figures 1 to 8 The difference is that a tool handle clamping component 5 is coaxially arranged on the inner side of the mounting ring 1, a tool handle ring 51 is arranged on the inner side of the first clamping component 4, arc blocks 52 are symmetrically installed in the middle of the front and rear side walls of the tool handle ring 51, and clamping blocks 53 are symmetrically installed in the middle of the left and right side walls of the tool handle ring 51. A screw unit 54 is provided on the upper end of the tool handle ring 51, and a tool handle clamping unit 55 is symmetrically arranged in the front and back middle of the inner side of the tool handle ring 51. An oil removal unit 56 is provided below the tool handle clamping unit 55, and the oil removal unit 56 is arranged inside the tool handle ring 51.

[0051] The side wall of the arc block 52 away from the handle ring 51 is symmetrically provided with a limiting slide 521 , and a clamping groove 522 is provided in the middle of the limiting slide 521 .

[0052] Abutment holes 531 that match the abutment protrusions 426 are evenly opened along the arc direction on the side wall of the arc-shaped clamping block 53 .

[0053] Vertical rods 541 are symmetrically installed in the middle of the left and right sides of the upper end surface of the handle ring 51, and a sliding ring 542 is slidably sleeved on the vertical rod 541. A support spring 545 is sleeved on the vertical rod 541 between the sliding ring 542 and the handle ring 51, and a connecting rod 543 is fixedly connected to the sliding ring 542. The end of the connecting rod 543 away from the sliding ring 542 is fixedly connected to an internal threaded ring plate 544, and the internal threaded ring plate 544 and the mounting ring 1 are coaxially arranged.

[0054] A rectangular groove 551 is symmetrically provided in the front and back middle part of the inner side of the handle ring 51, a trapezoidal block 552 is arranged inside the rectangular groove 551, and a pressure rod 553 is fixedly connected to the side wall of the trapezoidal block 552. The end of the pressure rod 553 away from the trapezoidal block 552 passes through the inner side of the handle ring 51 and is fixedly connected to the clamping teeth 555. A return spring 554 is sleeved on the pressure rod 553 between the trapezoidal block 552 and the side wall of the rectangular groove 551, and a threaded hole is provided above the rectangular groove 551. A T-shaped threaded rod 556 is screwed into the threaded hole, and the lower end of the T-shaped threaded rod 556 slides and abuts against the inclined surface of the trapezoidal block 552.

[0055] A cylindrical slide groove 561 is evenly opened along the circumference of the handle ring 51 near the lower end. A T-shaped slide rod 563 is slidably installed in the cylindrical slide groove 561 through a connecting spring 562. The T-shaped slide rod 563 extends to the inner side of the handle ring 51 away from the end of the connecting spring 562 and is fixedly connected to an oil-absorbing sponge block 564. The side wall of the oil-absorbing sponge block 564 away from the T-shaped slide rod 563 is an arc-shaped structure.

[0056] The handle 6 is fixedly arranged inside the handle clamping part 5. The handle 6 is thick at the top and thin at the bottom. A threaded section 61 is provided at the upper end of the handle 6. A toothed groove 62 is uniformly provided along the circumference of the handle 6 near the upper end.

[0057] The milling cutter body 7 is mounted on the lower end of the shank 6 in a detachable manner and has a secondary cutting edge structure.

[0058] During specific operation, after the mounting ring 1 and the output shaft of the milling machine processing center are fixedly connected, the ball head L-shaped pull rod 443 is manually pulled forward and backward. Since the arc-shaped elastic steel plate 441 has a certain deformation ability, under the action of external tension, the end of the arc-shaped elastic steel plate 441 away from the arc-shaped limit plate 422 will move toward the direction close to the inner wall of the mounting ring 1. At this time, the tool handle ring 51 is manually placed on the inner side of the mounting ring 1, and then the ball head L-shaped pull rod 443 is released. When the reaction force of the spring 444 is tightened, the tool handle ring 51 is manually placed on the inner side of the mounting ring 1. Under the combined action of the deformation force of the arc-shaped elastic steel plate 441 itself, the end of the arc-shaped elastic steel plate 441 can abut against the limiting slide 521 provided on the arc block 52, and then push the handle ring 51 upward. During this process, the end of the arc-shaped elastic steel plate 441 will slide along the limiting slide 521. When the clamping groove 522 moves to the same height as the end of the arc-shaped elastic steel plate 441, the end of the arc-shaped elastic steel plate 441 will be clamped in the clamping groove 522, thereby playing a role in preliminary positioning;

[0059] When installing the knife handle 6, the internal threaded ring plate 544 is pressed downward manually. At this time, the support spring 545 is compressed, and then the upper end of the knife handle 6 is passed through the bottom of the knife handle ring 51 and screwed into the internal threaded ring plate 544. Then, the pressing of the internal threaded ring plate 544 is stopped. The reaction force of the support spring 545 will drive the knife handle 6 to move upward until the tooth groove 62 and the clamping teeth 555 are aligned. At this time, the T-shaped threaded rod 556 is manually rotated and moved downward. During the downward movement of the T-shaped threaded rod 556, the inclined surface of the trapezoidal block 552 is continuously squeezed, so that the trapezoidal block 552 can drive the pressure rod 553 and the clamping teeth 555 to move in the direction of the tooth groove 62. Finally, the clamping teeth 555 will abut against the tooth groove 62, thereby completing the installation process of the knife handle 6.

[0060] During the spiral installation process of the tool handle 6, the outer wall of the upper end of the tool handle 6 can produce friction contact with the oil-absorbing sponge block 564, and the oil-absorbing sponge block 564 can remove the oil film on the outer wall of the upper end of the tool handle 6. Subsequently, during the upward movement of the outer wall of the upper end of the tool handle 6, the oil-absorbing sponge block 564 can further wipe off the oil film on the inner surface of the tooth groove 62, thereby ensuring the fixing effect of the clamping teeth 555 on the tool handle 6, and solving the problem of shaking of the tool handle 6 and the milling cutter body 7 during the milling process, thereby reducing the processing accuracy.

[0061] The working principle of the present invention when in use:

[0062] 1. First, fix the tool handle 6 and the milling cutter body 7 manually, and then press the internal threaded ring plate 544 downward manually. At this time, the support spring 545 is compressed, and then the upper end of the tool handle 6 is passed through the bottom of the tool handle ring 51 and screwed into the internal threaded ring plate 544. Then, the pressing of the internal threaded ring plate 544 is stopped. The reaction force of the support spring 545 will drive the tool handle 6 to move upward until the tooth groove 62 and the clamping teeth 555 are aligned. At this time, the T-shaped threaded rod 556 is manually rotated and moved downward. During the downward movement of the T-shaped threaded rod 556, the inclined surface of the trapezoidal block 552 is continuously squeezed, so that the trapezoidal block 552 can drive the pressure rod 553 and the clamping teeth 555 to move in the direction of the tooth groove 62. Finally, the clamping teeth 555 will abut against the tooth groove 62, thereby completing the installation between the tool handle 6 and the tool handle ring 51.

[0063] Second: After the above step 1 is completed, the ball head L-shaped pull rod 443 is manually pulled forward and backward. Since the arc-shaped elastic steel plate 441 has a certain deformation ability, under the action of external tension, the end of the arc-shaped elastic steel plate 441 away from the arc-shaped limit plate 422 will move toward the direction close to the inner wall of the mounting ring 1. At this time, the tool handle ring 51 is manually placed on the inner side of the mounting ring 1, and then the ball head L-shaped pull rod 443 is released. Under the reaction force of the tightening spring 444 and the arc-shaped elastic steel plate 4 Under the combined action of the deformation force of the self-reset of 41, the end of the arc-shaped elastic steel plate 441 can abut against the limiting slide 521 provided on the arc-shaped block 52, and then push the handle ring 51 upward. During this process, the end of the arc-shaped elastic steel plate 441 will slide along the limiting slide 521. When the clamping groove 522 moves to the same height as the end of the arc-shaped elastic steel plate 441, the end of the arc-shaped elastic steel plate 441 will be clamped in the clamping groove 522, thereby playing a role in preliminary positioning;

[0064] 3. After the above step 2 is completed, the T-shaped clamping rod 421 is manually pressed inward. Under the action of the arc-shaped limiting plate 422, the cross bar 424 and the arc-shaped abutting plate 425, the abutting protrusion 426 can be inserted into the abutting hole 531. Finally, the plug-in rod 427 is manually pressed downward so that the lower end of the plug-in rod 427 is inserted into the plug-in hole 428. Under the action of the extrusion spring 423, there will be a certain squeezing force between the T-shaped clamping rod 421 and the plug-in rod 427. This squeezing force can make the plug-in rod 427 firmly inserted into the plug-in hole 428. At this time, the installation process between the handle ring 51 and the mounting ring 1 is completed.

[0065] 4: After the above step 3 is completed, manually hold the mounting ring 1 and tighten the internal threaded sleeve 3 to install it on the output shaft of the milling machine machining center. At this time, the mounting ring 1 and the output shaft of the milling machine machining center are fixedly connected. At this point, the installation process is completed.

[0066] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the above-described embodiments. The above-described embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A deep hole high speed coated alloy milling cutter with a secondary cutting edge structure, characterized in that: include: Mounting ring (1); Brackets (2), the brackets (2) being fixedly mounted on the upper end surface of the mounting ring (1) and evenly distributed along its circumference; An internally threaded sleeve (3), wherein the internally threaded sleeve (3) is fixedly mounted on the inner side of the upper end of the bracket (2); A first clamping component (4), wherein the first clamping component (4) is symmetrically arranged on the left and right sides of the mounting ring (1) and is in sliding connection with the mounting ring (1); A tool handle clamping component (5), wherein the tool handle clamping component (5) is coaxially arranged on the inner side of the mounting ring (1); A knife handle (6), wherein the knife handle (6) is fixedly arranged on the inner side of the knife handle clamping component (5), the knife handle (6) has a structure that is thick at the top and thin at the bottom, and a threaded section (61) is provided at the upper end of the knife handle (6), and tooth-shaped grooves (62) are uniformly provided along the circumference of the knife handle (6) near the upper end; A milling cutter body (7), wherein the milling cutter body (7) is mounted on the lower end of the shank (6) in a detachable connection manner and the milling cutter body (7) has a secondary cutting edge structure; The first clamping component (4) comprises a mother-and-child mounting groove (41), a first clamping unit (42), a sliding hole (43) and a snap-on unit (44); the mother-and-child mounting grooves (41) are symmetrically provided inside the left and right sides of the mounting ring (1); the first clamping unit (42) is slidably installed inside the mother-and-child mounting grooves (41); the sliding holes (43) are symmetrically provided inside the front and rear sides of the mounting ring (1); the snap-on unit (44) is slidably provided inside the sliding holes (43); and the snap-on unit (44) is fixedly connected to the first clamping unit (42); A T-shaped clamping rod (421) is provided in the described mother-and-child mounting groove (41) and is slidably penetrated. The end of the T-shaped clamping rod (421) located on the inner side of the mounting ring (1) is fixedly connected to an arc-shaped limiting plate (422). An extrusion spring (423) is provided on the T-shaped clamping rod (421) between the arc-shaped limiting plate (422) and the mother-and-child mounting groove (41). A crossbar (424) is fixedly connected to the middle of the concave arc surface of the arc-shaped limiting plate (422). The crossbar (424) is far away from the An arc-shaped abutting plate (425) is fixedly installed at the end of the arc-shaped limiting plate (422), and abutting protrusions (426) are evenly arranged on the concave arc surface of the arc-shaped abutting plate (425). A plug-in hole (428) is evenly opened from left to right in the middle of the upper end surface of the T-shaped clamping rod (421), and a vertical hole is opened at the upper end of the mother-child mounting groove (41). A plug-in rod (427) is slidably provided in the vertical hole, and the lower end of the plug-in rod (427) is inserted into the plug-in hole (428); The arc-shaped limit plate (422) is fixedly and symmetrically connected to the middle of the front and rear side walls with an arc-shaped elastic steel plate (441). The arc-shaped elastic steel plate (441) is a J-shaped structure and its opposite end cross-section is triangular. A reinforcing rod (442) is fixedly installed between the concave arc surface of the arc-shaped elastic steel plate (441) and the arc-shaped abutment plate (425). A ball-head L-shaped pull rod (443) is slidably installed in the sliding hole (43). The ball-head L-shaped pull rod (443) is fixedly connected to the arc-shaped elastic steel plate (441). A tensioning spring (444) is sleeved on the ball-head L-shaped pull rod (443) between the arc-shaped elastic steel plate (441) and the sliding hole (43); A handle ring (51) is provided inside the first clamping component (4), arc blocks (52) are symmetrically installed in the middle of the front and rear side walls of the handle ring (51), clamping blocks (53) are symmetrically installed in the middle of the left and right side walls of the handle ring (51), a screw connection unit (54) is provided at the upper end of the handle ring (51), a handle clamping unit (55) is symmetrically provided in the front and rear middle of the inner side of the handle ring (51), an oil removal unit (56) is provided below the handle clamping unit (55), and the oil removal unit (56) is provided inside the handle ring (51).

2. The deep hole high speed coated alloy milling cutter according to claim 1, characterized in that: A limiting slideway (521) is symmetrically provided on the side wall of the arc block (52) away from the handle ring (51), and a clamping groove (522) is provided in the middle of the limiting slideway (521).

3. The deep hole high speed coated alloy milling cutter according to claim 1, characterized in that: Abutment holes (531) that match the abutment protrusions (426) are evenly opened along the arc direction on the side wall of the clamping block (53).

4. The deep hole high speed coated alloy milling cutter according to claim 1, characterized in that: Vertical rods (541) are symmetrically mounted on the middle of the left and right sides of the upper end surface of the shank ring (51); a sliding ring (542) is slidably sleeved on the vertical rod (541); a support spring (545) is sleeved on the vertical rod (541) between the sliding ring (542) and the shank ring (51); a connecting rod (543) is fixedly connected to the sliding ring (542); an end of the connecting rod (543) away from the sliding ring (542) is fixedly connected to an internal threaded ring plate (544); and the internal threaded ring plate (544) and the mounting ring (1) are coaxially arranged.

5. The deep hole high speed coated alloy milling cutter according to claim 1, characterized in that: A rectangular groove (551) is symmetrically provided in the middle of the inner side of the knife handle ring (51), a trapezoidal block (552) is provided inside the rectangular groove (551), a pressure rod (553) is fixedly connected to the side wall of the trapezoidal block (552), the end of the pressure rod (553) away from the trapezoidal block (552) passes through the inner side of the knife handle ring (51) and is fixedly connected to a clamping tooth (555), a return spring (554) is sleeved on the pressure rod (553) between the trapezoidal block (552) and the side wall of the rectangular groove (551), a threaded hole is provided above the rectangular groove (551), a T-shaped threaded rod (556) is screwed into the threaded hole, and the lower end of the T-shaped threaded rod (556) slides against the inclined surface of the trapezoidal block (552).

6. The deep hole high speed coated alloy milling cutter according to claim 5, characterized in that: A cylindrical slide groove (561) is uniformly opened along the circumference of the handle ring (51) near the lower end thereof, and a T-shaped slide rod (563) is slidably installed in the cylindrical slide groove (561) through a connecting spring (562). The end of the T-shaped slide rod (563) extends to the inner side of the handle ring (51) away from the connecting spring (562) and is fixedly connected to an oil-absorbing sponge block (564). The side wall of the oil-absorbing sponge block (564) away from the T-shaped slide rod (563) is in an arc-shaped structure.

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