Pipe inner bore milling machine

Abstract

The utility model discloses a milling machine for an inner bore of a pipe. The milling machine comprises a milling machine body, a four-corner chuck and a milling cutter, the four-corner chuck is arranged on a milling machine chuck main machine in the milling machine body; the milling cutter bar is arranged on a milling cutter electric spindle opposite to the milling machine chuck main machine; a T-shaped groove plate is arranged on the milling machine body between the four-corner chuck and the milling cutter; at least one pipe rod clamp is arranged on the T-shaped groove plate; a clamping through hole is formed in the pipe rod clamp, four pipe clamping rods arranged in an annular array are arranged in the clamping through hole, and two pipe clamping wheels are arranged at the front end of each of the four pipe clamping rods. The eight pipe clamping wheels can clamp a rotating metal pipe or a cutter bar of a milling cutter. A metal pipe penetrates through the pipe clamping through hole, and the four-corner chuck clamps the end of the metal pipe. The eight pipe clamping wheels are used for clamping a metal pipe; when the four-corner chuck rotates the metal pipe, the pipe clamping wheel clamps the metal pipe and rotates synchronously, it is guaranteed that the whole metal pipe does not generate the centrifugal vibration phenomenon, and the precision of inner bore cutting and milling is guaranteed.

Description

Technical Field

[0001] The utility model belongs to the technical field of pipe machining, and in particular relates to a pipe inner bore milling machine. Background Art

[0002] Metal pipe processing mainly uses mechanical equipment. The outer wall of metal pipe is easy to process, but the inner wall is more difficult to process. The main difficulty is the inner bore cutting and milling, especially when the pipe is long. When the pipe rotates, the far end from the clamping part of the milling machine will produce centrifugal vibration due to high-speed rotation, which affects the accuracy of inner bore cutting and milling. Summary of the invention

[0003] The present invention aims to solve the above problems and provides a pipe inner bore milling machine.

[0004] A pipe inner bore milling machine, comprising: a milling machine body 1, a four-corner chuck 2, and a milling cutter arbor 3; the four-corner chuck 2 is arranged on a milling machine chuck main unit 11 in the milling machine body 1; the milling cutter arbor 3 is arranged on a milling cutter electric spindle 14 opposite to the milling machine chuck main unit 11; a T-shaped slot plate 12 is arranged on the milling machine body 1 between the four-corner chuck 2 and the milling cutter arbor 3; at least one pipe rod clamp 4 is arranged on the T-shaped slot plate 12; a clamp main frame 41 is arranged in the pipe rod clamp 4, and the upper end of the clamp main frame 41 is a pipe clamping mechanism part 411; a pipe clamping through hole 412 is arranged at the center of the pipe clamping mechanism part 411; four pipe clamping rods 46 are arranged in the clamping through hole 412; the four pipe clamping rods 46 are arranged in a ring array; the front end ends of the four pipe clamping rods 46 are each provided with a pipe clamping wheel 415; the eight pipe clamping wheels 415 can clamp a rotating metal pipe 9 or a milling cutter arbor.

[0005] The lower end of the clamp main frame 41 is locked on the T-slot plate 12; two sets of worm gear mechanisms are provided in the pipe clamping mechanism part 411, and four rectangular sliding holes 414 are arranged in a circular array at the pipe clamping through hole 412, and each rectangular sliding hole 414 is provided with a pipe clamping rod 46.

[0006] The pipe rod clamp 4 also includes: a main worm 42, a main worm gear ring 43 and a clamping worm gear mechanism 45; the main worm gear ring 43 is sleeved on the pipe clamping mechanism part 411; a plurality of planetary gears 44 are arranged in an annular array inside the clamp main frame 41; a main worm shaft connection part 415 is provided at the lower edge of one side of the pipe clamping mechanism part 411; the main worm 42 is arranged in the main worm shaft connection part 415; a worm gear tooth 431 is provided on the outer side of the main worm gear ring 43; an annular gear tooth 432 is provided on the inner side of the main worm gear ring 43; the main worm 42 is meshed with the worm gear tooth 431 for transmission; the annular gear tooth 432 is synchronously meshed with the plurality of planetary gears 44 for transmission.

[0007] The clamping worm gear mechanism 45 includes: a secondary worm gear 451 and a secondary worm gear ring 452; the secondary worm gear 451 is coaxially connected to the planetary gear 44; the secondary worm gear 451 and the secondary worm gear ring 452 are meshed for transmission; the pipe clamping rod 46 includes: a spiral tube body 461, a clamping push rod 462, a push rod spring 463, and a V-shaped wheel frame 464; the spiral tube body 461 is sleeved in the secondary worm gear ring 452; the clamping push rod 462 rod body is sleeved in the rectangular sliding hole 414; the tail end of the clamping push rod 462 is sleeved Inside the spiral tube body 461; the push rod spring 463 is arranged in the spiral tube body 461, and the push rod spring 463 supports the clamping push rod 462; the V-shaped wheel frame 464 is axially connected to the end of the other end of the clamping push rod 462; two clamping wheels 465 are axially connected to the V-shaped wheel frame 464; the clamping push rod 462 can slide in the rectangular sliding hole 414; the auxiliary worm ring 452 rotates to drive the spiral tube body 461 to move linearly, and makes the clamping push rod 462 slide along the normal of the central axis of the main worm shaft connection part 415.

[0008] The milling machine body 1 is also provided with an electric spindle translation drive mechanism, which is arranged in the milling machine body 1 below the T-slot plate 12, and a driving slide groove 13 is provided on the side of the milling machine body 1; the milling cutter electric spindle 14 passes through the driving slide groove 13 below and is driven and connected to the electric spindle translation drive mechanism; the electric spindle translation drive mechanism drives the milling cutter rod 3 to move horizontally.

[0009] The technical scheme provides a pipe inner bore milling machine, which comprises: a milling machine body 1, a four-corner chuck 2, and a milling cutter arbor 3; the four-corner chuck 2 is arranged on a milling machine chuck main unit 11 in the milling machine body 1; the milling cutter arbor 3 is arranged on a milling cutter electric spindle 14 opposite to the milling machine chuck main unit 11; a T-shaped slot plate 12 is provided on the milling machine body 1 between the four-corner chuck 2 and the milling cutter arbor 3; at least one pipe rod clamp 4 is provided on the T-shaped slot plate 12; a clamping through hole 412 is provided in the pipe rod clamp 4, and four pipe clamping rods 46 arranged in a circular array are provided in the clamping through hole 412, and two pipe clamping wheels 415 are provided at the front end ends of the four pipe clamping rods 46; the eight pipe clamping wheels 415 can clamp the rotating metal pipe 9 or the milling cutter arbor. The metal tube 9 passes through the tube clamping through hole 412, and the four-corner chuck 2 clamps the end of the metal tube 9; the eight tube clamping wheels 465 clamp the metal tube 9; when the four-corner chuck 2 rotates the metal tube 9, the tube clamping wheels 465 clamp the metal tube 9 and rotate synchronously, ensuring that the metal tube 9 as a whole does not produce centrifugal vibration, thereby ensuring the accuracy of inner bore cutting and milling. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is an overall schematic diagram of a pipe inner bore milling machine of the utility model;

[0011] Figure 2 It is a schematic diagram of a pipe rod clamp of a pipe inner bore milling machine of the utility model;

[0012] Figure 3 It is a partial cross-sectional view of a pipe rod clamp of a pipe inner bore milling machine of the utility model;

[0013] Figure 4 This is an enlarged view of the local structure of a pipe rod clamp of a pipe inner bore milling machine of the utility model;

[0014] Figure 5 This is a cross-sectional view of the pipe clamping rod structure of a pipe inner bore milling machine of the utility model;

[0015] In the figure: 1, milling machine body, 11, milling machine chuck main machine, 12, T-slot plate, 13, drive slide groove, 14, milling cutter electric spindle, 15, control panel, 2, four-corner chuck, 3, milling cutter rod, 4, pipe rod clamp, 41, clamp main frame, 411, pipe clamping mechanism, 412, pipe clamping through hole, 413, main machine connection fixing part, 414, rectangular slide hole, 415, main worm shaft connection part, 4 2. Main worm, 421. Worm dial, 43. Main worm gear ring, 431. Worm gear teeth, 432. Ring teeth, 44. Planetary gears, 45. Clamping worm gear mechanism, 451. Sub-worm gear, 452. Sub-worm gear ring, 46. Pipe clamping rod, 461. Spiral tube body, 462. Clamping push rod, 463. Push rod spring, 464. V-shaped wheel frame, 465. Pipe clamping wheel, 9. Metal tube. DETAILED DESCRIPTION

[0016] The technical scheme will be further described clearly and completely below in conjunction with the accompanying drawings of the technical scheme. The described embodiments are only a part of the technical scheme, not all of the embodiments. Based on the technical scheme, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0017] Example 1

[0018] See also Figures 1 to 5 As shown, a pipe inner bore milling machine comprises: a milling machine body 1, a four-corner chuck 2, a milling cutter rod 3, and a pipe rod clamp 4;

[0019] The milling machine body 1 is provided with a milling machine chuck main unit 11, a T-shaped slot plate 12, an electric spindle translation driving mechanism, and a milling cutter electric spindle 14; the milling machine chuck main unit 11 is arranged on one side of the milling machine body 1; the T-shaped slot plate 12 is arranged on the upper end surface of the milling machine body 1; the electric spindle translation driving mechanism is arranged in the milling machine body 1 below the T-shaped slot plate 12, and a driving slide groove 13 is arranged on the side of the milling machine body 1; the milling cutter electric spindle 14 passes through the driving slide groove 13 below and is driven and connected to the electric spindle translation driving mechanism; the electric spindle translation driving mechanism drives the milling cutter electric spindle 14 to move horizontally on the T-shaped slot plate 12;

[0020] The four-corner chuck 2 is connected to the driving spindle of the milling machine chuck main unit 11; the milling cutter rod 3 is arranged on the milling cutter electric spindle 14;

[0021] The four-corner chuck 2 is opposite to the milling cutter shank 3; at least one pipe rod clamp 4 is provided, and the pipe rod clamp 4 is provided on the T-shaped slot plate 12 between the four-corner chuck 2 and the milling cutter shank 3;

[0022] The milling machine body 1 is also provided with a control panel 15 , which is arranged on the side of the milling machine chuck main body 11 .

[0023] The pipe rod clamp 4 comprises: a clamp main frame 41, a main worm 42, a main worm gear ring 43, a planetary gear 44, a clamping worm gear mechanism 45, and a pipe clamping rod 46;

[0024] The upper end of the clamp main frame 41 is a pipe clamping mechanism part 411, and a pipe clamping through hole 412 is provided at the center of the pipe clamping mechanism part 411; a rectangular sliding hole 414 is provided inside the pipe clamping through hole 412; there are 4 rectangular sliding holes 414, and the 4 rectangular sliding holes 414 are arranged in a circular equidistant array; a main machine connecting and fixing part 413 is provided at the lower end of the clamp main frame 41; the lower end of the main machine connecting and fixing part 413 is locked and connected with the T-shaped slot plate 12 by a T-bolt; a main worm shaft connecting part 415 is provided at the lower edge of one side of the pipe clamping mechanism part 411; the main worm 42 is arranged in the main worm shaft connecting part 415;

[0025] The center lines of the four rectangular sliding holes 414 are located on the normal line of the center axis of the main worm shaft connection part 415;

[0026] The main worm 42 is provided with a worm wheel disc 421 at one end; the main worm gear ring 43 is sleeved on the pipe clamping mechanism 411; the clamp main frame 41 has a plurality of planetary gears 44 in an annular array;

[0027] The main worm gear ring 43 is provided with worm gear teeth 431 on the outside; the main worm gear ring 43 is provided with annular gear teeth 432 on the inside; the main worm 42 is meshed with the worm gear teeth 431 for transmission; the annular gear teeth 432 are synchronously meshed with the plurality of planetary gears 44 for transmission;

[0028] The clamping worm gear mechanism 45 is provided with 4 groups, and the 4 groups of clamping worm gear mechanisms 45 are arranged in a circular equidistant array on the pipe clamping mechanism part 411;

[0029] The clamping worm gear mechanism 45 comprises: a secondary worm gear 451 and a secondary worm gear ring 452; the secondary worm gear 451 is coaxially connected with the planetary gear 44; the secondary worm gear 451 and the secondary worm gear ring 452 are meshed for transmission;

[0030] The pipe clamping rod 46 comprises: a spiral tube body 461, a clamping push rod 462, a push rod spring 463, a V-shaped wheel frame 464, and a pipe clamping wheel 465; the spiral tube body 461 is sleeved in the auxiliary worm ring 452; the clamping push rod 462 rod body is sleeved in the rectangular sliding hole 414; the tail end of the clamping push rod 462 is sleeved in the spiral tube body 461; the push rod spring 463 is arranged in the spiral tube body 461, and the push rod spring 463 supports the clamping push rod 462; the V-shaped wheel frame 464 is axially connected to the end of the other end of the clamping push rod 462; two pipe clamping wheels 465 are axially connected on the V-shaped wheel frame 464;

[0031] The clamping push rod 462 can slide in the rectangular sliding hole 414; the auxiliary worm ring 452 rotates to drive the spiral tube body 461 to move linearly, and makes the clamping push rod 462 slide along the normal line of the central axis of the main worm shaft connection part 415;

[0032] That is, the main worm 42 drives the main worm gear ring 43 to rotate, the main worm gear ring 43 engages with the planetary gear 44 to rotate, the planetary gear 44 drives the auxiliary worm gear 451 to rotate synchronously with it, the auxiliary worm gear 451 engages with the auxiliary worm gear ring 452 to drive the spiral tube body 461 to move linearly along the central axis of the rectangular slide hole 414; the tube clamping wheel 465 in the four tube clamping rods 46 clamps the metal tube 9 that needs inner bore cutting and milling.

[0033] When in use, one or two pipe rod clamps 4 can be provided, and the pipe rod clamps 4 can clamp the rotating metal pipe 9 or the milling cutter rod body to ensure that when the metal pipe 9 or the milling cutter processes a metal pipe with a long length, its distal end is centrifugal due to the vibration generated by the rotation, which affects the cutting and milling accuracy.

Claims

1. A pipe inner bore milling machine, comprising: A milling machine body (1), a four-corner chuck (2), and a milling cutter rod (3); the four-corner chuck (2) is arranged on a milling machine chuck main unit (11) in the milling machine body (1); the milling cutter rod (3) is arranged on a milling cutter electric spindle (14) opposite to the milling machine chuck main unit (11); a T-shaped slot plate (12) is arranged on the milling machine body (1) between the four-corner chuck (2) and the milling cutter rod (3); the feature is that at least one pipe rod clamp (4) is arranged on the T-shaped slot plate (12); the pipe rod clamp (4) A clamp main frame (41) is provided in the middle, and the upper end of the clamp main frame (41) is a pipe clamping mechanism part (411); a pipe clamping through hole (412) is provided at the center of the pipe clamping mechanism part (411); four pipe clamping rods (46) are provided in the clamping through hole (412), and the four pipe clamping rods (46) are arranged in a circular array; the front ends of the four pipe clamping rods (46) are all provided with pipe clamping wheels (465); the eight pipe clamping wheels (465) can clamp a rotating metal pipe (9) or a milling cutter rod.

2. A pipe inner bore milling machine according to claim 1, characterized in that: The lower end of the clamp main frame (41) is locked on the T-slot plate (12); the upper end; the pipe clamping mechanism part (411) is provided with two sets of worm gear mechanisms, and the pipe clamping through hole (412) is provided with four rectangular sliding holes (414) in a circular array, and each rectangular sliding hole (414) is provided with a pipe clamping rod (46).

3. A pipe inner bore milling machine according to claim 2, characterized in that: The pipe rod clamp (4) further comprises: a main worm (42), a main worm gear ring (43) and a clamping worm gear mechanism (45); the main worm gear ring (43) is sleeved on the pipe clamping mechanism part (411); a plurality of planetary gears (44) are arranged in an annular array inside the clamp main frame (41); a main worm shaft connection part (415) is provided at the lower edge of one side of the pipe clamping mechanism part (411); the main worm (42) is arranged in the main worm shaft connection part (415); worm gear teeth (431) are provided on the outer side of the main worm gear ring (43); annular gear teeth (432) are provided on the inner side of the main worm gear ring (43); the main worm (42) and the worm gear teeth (431) are meshed for transmission; the annular gear teeth (432) and the plurality of planetary gears (44) are synchronously meshed for transmission.

4. A pipe inner bore milling machine according to claim 3, characterized in that: The clamping worm gear mechanism (45) comprises: a secondary worm gear (451) and a secondary worm gear ring (452); the secondary worm gear (451) is coaxially connected to the planetary gear (44); the secondary worm gear (451) and the secondary worm gear ring (452) are meshed for transmission; the pipe clamping rod (46) comprises: a spiral tube body (461), a clamping push rod (462), a push rod spring (463), and a V-shaped wheel frame (464); the spiral tube body (461) is sleeved in the secondary worm gear ring (452); the clamping push rod (462) rod body is sleeved in the rectangular sliding hole (414); the tail end of the clamping push rod (462) The spiral tube body (461) is sleeved therein; a push rod spring (463) is arranged in the spiral tube body (461), and the push rod spring (463) supports the clamping push rod (462); a V-shaped wheel frame (464) is axially connected to the end of the other end of the clamping push rod (462); two clamping wheels (465) are axially connected to the V-shaped wheel frame (464); the clamping push rod (462) can slide in the rectangular sliding hole (414); the auxiliary worm ring (452) rotates to drive the spiral tube body (461) to move linearly, and makes the clamping push rod (462) slide along the normal line of the central axis of the main worm shaft connection part (415).

5. A pipe inner bore milling machine according to claim 4, characterized in that: The milling machine body (1) is also provided with an electric spindle translation drive mechanism, which is arranged in the milling machine body (1) below the T-shaped slot plate (12), and a driving slide groove (13) is arranged on the side of the milling machine body (1); the milling cutter electric spindle (14) passes through the driving slide groove (13) below and is connected to the electric spindle translation drive mechanism; the electric spindle translation drive mechanism drives the milling cutter rod (3) to move horizontally.

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