Top concave drilling and milling machine

Abstract

This invention discloses a top-drilling and milling machine, comprising a machine base, a clamping mechanism, a drilling and milling mechanism, a bidirectional top-drilling mechanism, and a flaring mechanism. Both the drilling and milling mechanism and the bidirectional top-drilling mechanism are movably connected to the machine base along the X-axis. The clamping mechanism is located between the drilling and milling mechanism and the top-drilling mechanism. The bidirectional top-drilling mechanism includes a top-drilling module and a linear module. The linear module can drive the top-drilling module to move along the X-axis. The top-drilling module includes a driving device and a first ejector pin and a second ejector pin arranged opposite each other. The driving device can drive the first and second ejector pins to move relative to each other, so that the first and second ejector pins press against the circumferential outer surface of the workpiece to form a first and a second recess arranged opposite each other. This invention integrates drilling, milling, top-drilling, and flaring into a single machine, resulting in a small production footprint, improved production efficiency, reduced production costs, and the ability to process long, strip-shaped workpieces, making it highly adaptable.

Description

Technical Field

[0001] This invention relates to the field of automated equipment technology, and specifically to a top concave drilling and milling machine. Background Technology

[0002] Pipe fittings are generally processed by punching, bending, welding, drilling and milling, and top-drilling. Drilling and milling involves making holes or grooves in the pipe fittings, while top-drilling involves using external force to create pits on the outer surface of the pipe fittings. Traditionally, drilling and milling and top-drilling of pipe fittings are completed independently by two separate machines. However, this method results in multiple machines occupying a large production space, low production efficiency, and high costs. In addition, traditional equipment is difficult to drill and mill long strip pipe fittings and has poor applicability. Summary of the Invention

[0003] This invention addresses the shortcomings of existing technologies by providing a top-and-bottom drilling and milling machine that integrates drilling, milling, and top-and-bottoming into a single machine. The machine occupies little production space, improves production efficiency, reduces production costs, and can also perform drilling, milling, and top-and-bottoming on long strip-shaped workpieces, making it highly adaptable.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A top-and-bottom drilling and milling machine includes a machine base, a clamping mechanism, a drilling and milling mechanism, and a bidirectional top-and-bottom mechanism. The drilling and milling mechanism is movably connected to one side of the machine base along the X-axis, and the bidirectional top-and-bottom mechanism is movably connected to the other side of the machine base along the X-axis. The clamping mechanism is located between the drilling and milling mechanism and the top-and-bottom mechanism.

[0006] The bidirectional top-drilling mechanism includes a top-drilling module and a first linear module. The first linear module can drive the top-drilling module to move along the X-axis. The top-drilling module includes a driving device and a first ejector pin and a second ejector pin arranged opposite each other. The driving device can drive the first ejector pin and the second ejector pin to move relative to each other, so that the first ejector pin and the second ejector pin press against the circumferential outer surface of the workpiece to form a first and a second pit arranged oppositely. By setting a clamping mechanism, a drilling and milling mechanism, and a bidirectional top-drilling mechanism on the machine tool, the bidirectional top-drilling mechanism includes a top-drilling module and a first linear module. The top-drilling module has a first ejector pin, a second ejector pin, and a driving device. During processing, the clamping mechanism holds and fixes the workpiece, the drilling and milling mechanism drills and mills the workpiece, and the driving device drives the first and second ejector pins to move relative to each other, so that the first and second ejector pins are pressed on the circumferential outer surface of the workpiece to form a first and second recess that are set opposite to each other, realizing drilling, milling and top-drilling operations. At the same time, both the drilling and milling mechanism and the bidirectional top-drilling mechanism can move along the X-axis, thereby realizing the processing of long workpieces. This equipment integrates the drilling and milling mechanism and the bidirectional top-drilling mechanism. The equipment occupies little production space, improves production efficiency, reduces production costs, and can also realize drilling, milling and top-drilling of long workpieces, making it highly applicable.

[0007] As a preferred embodiment, the top recess module further includes a positioning seat, the first ejector pin is movably mounted on one side of the positioning seat, the second ejector pin is movably mounted on the other side of the positioning seat, the positioning seat is provided with a positioning hole, the positioning hole is located between the first ejector pin and the second ejector pin, and the driving device can drive the first ejector pin and the second ejector pin to move relative to each other, so that the first ejector pin and the second ejector pin extend into the positioning hole and squeeze the workpiece.

[0008] As a preferred embodiment, the positioning seat has a first guide groove on one side and a second guide groove on the other side. Both the first and second guide grooves are connected to the positioning hole. The first ejector pin is movably installed in the first guide groove, and the second ejector pin is movably installed in the second guide groove.

[0009] As a preferred embodiment, one end of the first ejector pin has a first tip, and a first clearance groove is provided between the first guide groove and the positioning hole for the first tip to move. The first guide groove and the positioning hole are connected through the first clearance groove. One end of the second ejector pin has a second tip, and a second clearance groove is provided between the second guide groove and the positioning hole for the second tip to move. The second guide groove and the positioning hole are connected through the second clearance groove.

[0010] As a preferred embodiment, a first guide sleeve is provided on the outer side of the first ejector pin, and the first ejector pin is movably installed in the first guide groove through the first guide sleeve. A second guide sleeve is provided on the outer side of the second ejector pin, and the second ejector pin is movably installed in the second guide groove through the second guide sleeve.

[0011] As a preferred embodiment, the driving device includes a first movable seat, a second movable seat, and a driving assembly. The driving assembly can drive the first movable seat and the second movable seat to move synchronously relative to each other, so that the first movable seat and the second movable seat respectively drive the corresponding first ejector pin and the second ejector pin to synchronously squeeze the workpiece.

[0012] As a preferred embodiment, the drilling and milling mechanism includes a cutter head, a spindle motor, and a transmission device. The cutter head is mounted on the drive end of the spindle motor, and the transmission device can drive the spindle motor to move relative to the machine tool along the X-axis, Y-axis, and Z-axis directions.

[0013] As a preferred embodiment, the clamping mechanism is located at one end of the machine base, and the other end of the machine base is provided with a flaring mechanism. The flaring mechanism is used to enlarge the port at one end of the workpiece. The flaring mechanism includes a flaring module and a second linear module. The second linear module can drive the flaring module to move along the X-axis. The flaring module includes a top block and a moving device for driving the top block to move. One end of the top block is formed with a tapered portion.

[0014] As a preferred embodiment, the moving device includes an X-axis moving unit and a Y-axis moving unit. The top block is connected to the driving end of the X-axis moving unit. The Y-axis moving unit can drive the X-axis moving unit to move along the Y-axis direction, and the top block can move with the X-axis moving unit.

[0015] As a preferred embodiment, the clamping mechanism includes a chuck and a rotating device for driving the chuck to rotate. The chuck can clamp the workpiece and cause the workpiece to rotate about its own axis.

[0016] Compared with existing technologies, this invention has significant advantages and beneficial effects. Specifically, by setting a clamping mechanism, a drilling and milling mechanism, and a bidirectional top-and-bottom mechanism on the machine tool, the bidirectional top-and-bottom mechanism includes a top-and-bottom module and a first linear module. The top-and-bottom module has a first ejector pin, a second ejector pin, and a driving device. During processing, the clamping mechanism clamps and fixes the workpiece, the drilling and milling mechanism drills and mills the workpiece, and the driving device drives the first ejector pin and the second ejector pin to move relative to each other, so that the first ejector pin and the second ejector pin are pressed on the circumferential outer surface of the workpiece to form a first and a second pit that are arranged opposite to each other, realizing the drilling, milling, and top-and-bottom operation. At the same time, both the drilling and milling mechanism and the bidirectional top-and-bottom mechanism can move along the X-axis, thereby realizing the processing of long strip workpieces. This equipment integrates the drilling and milling mechanism and the bidirectional top-and-bottom mechanism, occupies little production space, improves production efficiency, reduces production costs, and can also realize the drilling, milling, and top-and-bottom operation of long strip workpieces, making it highly applicable.

[0017] To more clearly illustrate the structural features, technical means, and specific objectives and functions achieved by the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments: Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the assembly structure according to an embodiment of the present invention;

[0019] Figure 2 This is a schematic diagram of the bidirectional top-and-bottom mechanism according to an embodiment of the present invention;

[0020] Figure 3 This is a schematic diagram of the top recessed module structure according to an embodiment of the present invention;

[0021] Figure 4 This is an exploded view of the top recessed module according to an embodiment of the present invention;

[0022] Figure 5 This is a cross-sectional schematic diagram of the positioning seat, the first ejector pin, and the second ejector pin according to an embodiment of the present invention;

[0023] Figure 6 This is a schematic diagram of the flaring mechanism and tool magazine assembly according to an embodiment of the present invention;

[0024] Figure 7This is a schematic diagram of the flared module structure according to an embodiment of the present invention.

[0025] Explanation of reference numerals in the attached diagram:

[0026] 10-Machine base 11-First guide rail 12-First rack

[0027] 13-Second guide rail 14-Second rack 20-Clamping mechanism

[0028] 21-Chuck 22-Rotating device 30-Drilling and milling mechanism

[0029] 31-Cutter head; 32-Spindle motor; 33-Transmission device

[0030] 331 - Mounting plate; 332 - X-axis module; 333 - Y-axis module

[0031] 334-Z-axis module 40-bidirectional top-and-bottom mechanism 41-first clamping module

[0032] 42-Second clamping module; 50-Top recessed module; 51-Positioning seat

[0033] 511-Positioning hole; 512-First guide groove; 513-First clearance groove

[0034] 514 - First movable groove; 515 - Second guide groove; 516 - Second clearance groove

[0035] 517-Second movable groove; 52-First ejector pin; 521-First tip.

[0036] 522 - First spring; 523 - First guide sleeve; 524 - First protrusion

[0037] 53-Second ejector pin; 531-Second tip; 532-Second spring

[0038] 533-Second guide sleeve; 534-Second protrusion; 54-Drive device

[0039] 541-First movable seat; 5411-First push rod; 542-Second movable seat

[0040] 5421 - Second push rod; 543 - Drive assembly; 544 - Two-way lead screw

[0041] 5441 - First threaded section; 5442 - Second threaded section; 545 - Drive motor

[0042] 55-First baffle; 551-First through hole; 56-Second baffle

[0043] 561-Second through hole; 60-First linear module; 61-First slide block

[0044] 62-First X-axis drive component; 70-Braving mechanism; 71-Braving module

[0045] 711-Top block 7111-Conical part 712-Moving device

[0046] 7121-X-axis moving unit; 7122-Y-axis moving unit; 72-Second linear module

[0047] 721-Second slide block; 722-Second X-axis drive unit; 73-Pneumatic clamp.

[0048] 74-Tool magazine assembly; 741-Tool holder; 742-Tool holder drive unit

[0049] 80-workpiece Detailed Implementation

[0050] In the description of this invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the indicated position or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0051] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0052] like Figure 1-7 As shown, this invention discloses a top-drilling and milling machine, including a machine base 10, a clamping mechanism 20, a drilling and milling mechanism 30, and at least one bidirectional top-drilling mechanism 40. The drilling and milling mechanism 30 is movably connected to one side of the machine base 10 along the X-axis direction, and the bidirectional top-drilling mechanism 40 is movably connected to the other side of the machine base 10 along the X-axis direction. The clamping mechanism 20 is located at one end of the machine base 10 and is disposed between the drilling and milling mechanism 30 and the top-drilling mechanism. The clamping mechanism 20 is used to clamp a workpiece 80, and the drilling and milling mechanism 30 is used to drill and mill the workpiece 80. Specifically, the drilling and milling mechanism 30 is used to drill and mill the circumferential outer surface of the workpiece 80 so that the circumferential outer surface of the workpiece 80 forms a hole or groove or other structure.

[0053] The clamping mechanism 20 includes a chuck 21 and a rotating device 22 that drives the chuck 21 to rotate. The chuck 21 can clamp the workpiece 80 and make the workpiece 80 rotate around its own axis. The axis of the chuck 21 is parallel to the X-axis. Specifically, the chuck 21 is a pneumatic chuck 21, and the rotating device 22 is a motor. When working, the axis of the workpiece 80 is parallel to the X-axis. Under the drive of the rotating device 22, the chuck 21 drives the workpiece 80 to rotate around its own axis. By setting a clamping mechanism 20 with a rotating function, the workpiece 80 can rotate around its own axis, and the workpiece 80 can be processed in multiple angles and circumferential directions according to production needs, thus improving its applicability.

[0054] The drilling and milling mechanism 30 includes a cutter head 31, a spindle motor 32, and a transmission device 33. The cutter head 31 is mounted on the drive end of the spindle motor 32. The transmission device 33 can drive the spindle motor 32 to move relative to the machine base 10 along the X-axis, Y-axis, and Z-axis directions. Specifically, one side of the machine base 10 is provided with a first guide rail 11 and a first rack 12 extending along the X-axis direction. The transmission device 33 includes a mounting plate 331 and an X-axis module 332, a Y-axis module 333, and a Z-axis module 334 mounted on the mounting plate 331. All three modules 334 use an electric motor as their power source. The mounting plate 331 is slidably connected to the first guide rail 11. The X-axis module 332 is connected to a first X-axis gear (not shown), which meshes with the first rack 12. The X-axis module 332 drives the mounting plate 331 to move along the X-axis direction, so that the mounting plate 331 drives the cutter head 31, the spindle motor 32, and the transmission device 33 to move synchronously along the X-axis direction. The Y-axis module 333 drives the Z-axis module 334 to move along the Y-axis direction, and the Z-axis module 334 drives the spindle motor 32 to move along the Z-axis direction.

[0055] Multiple bidirectional top-drilling mechanisms 40 are provided, and the multiple bidirectional top-drilling mechanisms 40 are distributed at intervals along the X-axis direction; by setting multiple bidirectional top-drilling mechanisms 40 distributed at intervals, multiple top-drilling operations can be performed on a long workpiece 80 at the same time, thereby improving production efficiency.

[0056] The bidirectional top-and-bottom mechanism 40 includes a top-and-bottom module 50, which includes a positioning seat 51, a driving device 54, and a first ejector pin 52 and a second ejector pin 53 arranged opposite to each other. The positioning seat 51 is provided with a positioning hole 511 adapted to the workpiece 80. The driving device 54 can drive the first ejector pin 52 and the second ejector pin 53 to move relative to each other, so that the first ejector pin 52 and the second ejector pin 53 extend into the positioning hole 511 and squeeze the workpiece 80, so that the circumferential outer surface of the workpiece 80 forms a first pit and a second pit arranged opposite to each other.

[0057] The first ejector pin 52 is movably mounted on one side of the positioning seat 51 along the Y-axis direction, and the second ejector pin 53 is movably mounted on the other side of the positioning seat 51 along the Y-axis direction. The positioning hole 511 extends along the X-axis direction and penetrates both side walls of the positioning seat 51. The positioning hole 511 is located between the first ejector pin 52 and the second ejector pin 53. The first ejector pin 52 and the second ejector pin 53 are set on the positioning seat 51.

[0058] The positioning seat 51 has a first guide groove 512 extending along the Y-axis on one side and a second guide groove 515 extending along the Y-axis on the other side. Both the first guide groove 512 and the second guide groove 515 are connected to the positioning hole 511. The first ejector pin 52 is movably installed in the first guide groove 512 and the second ejector pin 53 is movably installed in the second guide groove 515. By setting the first guide groove 512 and the second guide groove 515, the guiding effect of the first guide groove 512 and the second guide groove 515 makes the movement of the first ejector pin 52 and the second ejector pin 53 more stable, and the ejection accuracy of the workpiece 80 is high and the consistency is good.

[0059] One end of the first ejector pin 52 has a first tip 521. A first clearance groove 513 is provided between the first guide groove 512 and the positioning hole 511 to allow the first tip 521 to move. The first guide groove 512 and the positioning hole 511 are connected through the first clearance groove 513. One end of the second ejector pin 53 has a second tip 531. A second clearance groove 516 is provided between the second guide groove 515 and the positioning hole 511 to allow the second tip 531 to move. The second guide groove 515 and the positioning hole 511 are connected through the second clearance groove 516. By setting the first clearance groove 513 and the second clearance groove 516, the first tip 521 and the second tip 531 can extend into the positioning hole 511 to press the workpiece 80.

[0060] One end of the first guide groove 512 is provided with a first spring 522 that causes the first ejector pin 52 to move away from the positioning hole 511. One end of the first spring 522 abuts against the inner sidewall of the first guide groove 512, and the other end of the first spring 522 abuts against the first ejector pin 52. One end of the second guide groove 515 is provided with a second spring 532 that causes the second ejector pin 53 to move away from the positioning hole 511. One end of the second spring 532 abuts against the inner sidewall of the second guide groove 515, and the other end of the second spring 532 abuts against the second ejector pin 53. The driving device 54 has a first push rod 5411 and a second push rod 5421. The first push rod 5411 abuts against the end of the first ejector pin 52 away from the positioning hole 511, and the second push rod 5421 abuts against the end of the second ejector pin 53 away from the positioning hole 511. By providing the first push rod 5411 and the second push rod 5421 on the driving device 54, the driving device 54 can achieve the desired effect. The two push rods 5421 have two functions: the first push rod 5411 pushes the first ejector pin 52 into the positioning hole 511 to compress the workpiece 80, and the second push rod 5421 pushes the second ejector pin 53 into the positioning hole 511 to compress the workpiece 80. Utilizing the elastic force of the first spring 522 and the second spring 532, the first ejector pin 52 and the second ejector pin 53 automatically retract from the positioning hole 511 when not under the action of the driving device 54. The first spring 522 and the second spring 532 play a role in resetting and buffering. The driving device 54 transmits power to the first ejector pin 52 and the second ejector pin 53 in a contact manner, so that the first push rod 5411 and the first ejector pin 52 do not need to be aligned for coaxiality, and the second push rod 5421 and the second ejector pin 53 also do not need to be aligned for coaxiality. The installation of the first ejector pin 52, the second ejector pin 53, the first push rod 5411, and the second push rod 5421 is simpler and more convenient, with high installation and disassembly efficiency, a simple power transmission structure, and better reliability.

[0061] The other end of the first guide groove 512 is provided with a first baffle 55 to restrict the first ejector pin 52 from exiting the first guide groove 512. The first baffle 55 is provided with a first through hole 551 for the first push rod 5411 to pass through, and the first through hole 551 communicates with the first guide groove 512. The other end of the second guide groove 515 is provided with a second baffle 56 to restrict the second ejector pin 53 from exiting the second guide groove 515. The second baffle 56 is provided with a second through hole 561 for the second push rod 5421 to pass through, and the second through hole 561 communicates with the second guide groove 515. The first baffle 55 and the second baffle 56 are both detachably connected to the positioning seat 51. By setting the first baffle 55 and the second baffle 56, the first ejector pin 52 is prevented from falling out of the first guide groove 512, and the second ejector pin is prevented from exiting the first guide groove 512. 53 detaches from the second guide groove 515, ensuring high reliability; the first through hole 551 and the second through hole 561 are respectively provided on the first baffle 55 and the second baffle 56, so that the first push rod 5411 can pass through the first through hole 551 to abut against the first ejector pin 52, and the second push rod 5421 can pass through the second through hole 561 to abut against the second ejector pin 53; in addition, the positioning hole 511, the first ejector pin 52, the first spring 522, the first baffle 55, the second ejector pin 53, the second spring 532, and the second baffle 56 are all arranged on the positioning seat 51, which has high integration, small space occupation, and convenient assembly and disassembly. When different workpieces 80 or different top concave requirements are needed, it is only necessary to remove the positioning seat 51 from the top concave module 50 and replace it with a positioning seat 51 of other models, which is convenient and quick to change the type.

[0062] The first ejector pin 52 has a radially outward protruding first protrusion 524 at its end away from the positioning hole 511. The diameter of the first protrusion 524 is larger than the diameter of the first through hole 551. A first movable groove 514 is formed between the first baffle 55 and the positioning seat 51, allowing the first protrusion 524 to move along the Y-axis. The first movable groove 514 is connected to both the first through hole 551 and the first guide groove 512. The second ejector pin 53 has a radially outward protruding second protrusion 534 at its end away from the positioning hole 511. The diameter of the second protrusion 534 is larger than the diameter of the second through hole 561. The second baffle 56 and the positioning seat 51 form a first movable groove 514 between the first baffle 55 and the positioning seat 51. A second movable groove 517 is formed between the seats 51, allowing the second protrusion 534 to move along the Y-axis. The second movable groove 517 is connected to the second through hole 561 and the second guide groove 515. By setting the first protrusion 524 and the second protrusion 534, the diameter of the first protrusion 524 is larger than the diameter of the first through hole 551, and the diameter of the second protrusion 534 is larger than the diameter of the second through hole 561. The cooperation between the first protrusion 524 and the first baffle 55 can restrict the first ejector pin 52 from falling out of the first guide groove 512, and the cooperation between the second protrusion 534 and the second baffle 56 can restrict the second ejector pin 53 from falling out of the second guide groove 515.

[0063] A first guide sleeve 523 is sleeved on the outer side of the first ejector pin 52, and the first ejector pin 52 is movably installed in the first guide groove 512 through the first guide sleeve 523. A second guide sleeve 533 is sleeved on the outer side of the second ejector pin 53, and the second ejector pin 53 is movably installed in the second guide groove 515 through the second guide sleeve 533. Specifically, the other end of the first spring 522 abuts against the first guide sleeve 523, and the other end of the second spring 532 abuts against the second guide sleeve 533. The first protrusion 524 is integrally connected to the first guide sleeve 523, and the second protrusion 534 is integrally connected to the second guide sleeve 533. By setting the first guide sleeve 523 and the second guide sleeve 533, the first ejector pin 52 is indirectly connected to the first guide groove 512, and the second ejector pin 53 is indirectly connected to the second guide groove 515. The first guide sleeve 523 and the second guide sleeve 533 can be made of wear-resistant material to avoid wear on the first ejector pin 52 and the second ejector pin 53, thereby improving service life and reducing maintenance frequency.

[0064] The driving device 54 includes a first movable seat 541, a second movable seat 542, and a driving assembly 543. The positioning seat 51 is disposed between the first movable seat 541 and the second movable seat 542. The driving assembly 543 can drive the first movable seat 541 and the second movable seat 542 to move synchronously relative to each other, so that the first movable seat 541 and the second movable seat 542 respectively drive the corresponding first ejector pin 52 and the second ejector pin 53 to move synchronously towards the positioning hole 511. Specifically, the first push rod 5411 is disposed on the first movable seat 541, and the second push rod 5421 is disposed on the second movable seat 542. The driving assembly 543 includes a bidirectional lead screw 544 and a driving motor 545. The first movable seat 541 and the second movable seat 542 are both rotatably connected to the bidirectional lead screw 544, and the driving motor 545 is drively connected to the bidirectional lead screw 544. The first movable seat 541 and the second movable seat 542 are driven to move synchronously relative to each other, so that the first push rod 5411 on the first movable seat 541 and the second push rod 5421 on the second movable seat 542 drive the corresponding first ejector pin 52 and the second ejector pin 53 to move synchronously relative to each other. The bidirectional lead screw 544 has a first threaded section 5441 and a second threaded section 5442 with opposite helical directions. The first movable seat 541 is rotatably connected to the first threaded section 5441, and the second movable seat 542 is rotatably connected to the second threaded section 5442. By using the bidirectional lead screw 544 and the drive motor 545, the first movable seat 541 and the second movable seat 542 are rotatably connected to the bidirectional lead screw 544, so as to realize the synchronous movement of the first movable seat 541 and the second movable seat 542. The power deviation transmitted from the bidirectional lead screw 544 to the first movable seat 541 and the second movable seat 542 is small and the stability is better.

[0065] The bidirectional top-and-bottom mechanism 40 further includes a first linear module 60, which includes a first slide block 61 and a first X-axis drive member 62. The first X-axis drive member 62 can drive the first slide block 61 to move along the X-axis direction. The first slide block 61 is provided with a first clamping module 41 and a second clamping module 42 distributed along the X-axis direction. The top-and-bottom module 50 is mounted on the first slide block 61 and is located between the first clamping module 41 and the second clamping module 42. The first movable seat 541 and the second movable seat 542 can both be slidably connected to the first slide block 61 along the Y-axis direction. By setting the first slide block 61 and the first X-axis drive member 62, the mechanism can achieve the desired effect. The first linear module 60, composed of components 62, has a first clamping module 41 and a second clamping module 42 mounted on a first slide block 61. A top-dimpling module 50 is arranged between the first clamping module 41 and the second clamping module 42. The first X-axis drive component 62 can drive the entire bidirectional top-dimpling mechanism 40 to move along the X-axis direction, so that the first clamping module 41 and the second clamping module 42 can clamp and fix the workpiece 80 at any position, and the top-dimpling module 50 can perform top-dimpling operations on the workpiece 80 at any position. The entire bidirectional top-dimpling mechanism 40 has a larger range of motion, meets the processing requirements of long workpieces 80, has better applicability, and has higher efficiency when multiple bidirectional top-dimpling mechanisms 40 work simultaneously.

[0066] The other side of the machine base 10 is provided with a second guide rail 13 and a second rack 14 extending along the X-axis direction. The first slide 61 is slidably connected to the second guide rail 13. The first X-axis drive member 62 is provided with a second X-axis gear that meshes with the second rack 14. The first X-axis drive member 62 is a moving motor.

[0067] The other end of the machine base 10 is provided with a flaring mechanism 70, which is used to enlarge the port of one end of the workpiece 80. The flaring mechanism 70 includes a flaring module 71 and a second linear module 72. The second linear module 72 can drive the flaring module 71 to move along the X-axis. The flaring module 71 includes a top block 711 and a moving device 712 that drives the top block 711 to move. One end of the top block 711 is formed with a tapered portion 7111. By setting the flaring mechanism 70, the workpiece 80 can be flared, making the equipment more versatile and applicable, and meeting market demands.

[0068] The moving device 712 includes an X-axis moving unit 7121 and a Y-axis moving unit 7122. The top block 711 is connected to the driving end of the X-axis moving unit 7121. The Y-axis moving unit 7122 can drive the X-axis moving unit 7121 to move along the Y-axis direction. The top block 711 can move with the X-axis moving unit 7121. When flaring, the Y-axis moving unit 7122 drives the X-axis moving unit 7121 to move to the axis of the port of the workpiece 80. The X-axis moving unit 7121 drives the top block 711 to move towards the port, so that the tapered part 7111 on the top block 711 extends into the port. The outer wall of the tapered part 7111 abuts against the inner wall of the port, thereby widening the port.

[0069] Specifically, the second linear module 72 includes a second slide 721 and a second X-axis drive 722. The second X-axis drive 722 can drive the second slide 721 to move along the X-axis direction. The flaring module 71 is mounted on the second slide 721. The end of the second slide 721 near the clamping mechanism 20 is provided with a pneumatic clamp 73 for clamping the workpiece 80. The end of the second slide 721 away from the pneumatic clamp 73 is provided with a tool magazine assembly 74. The tool magazine assembly 74 includes a tool holder 741 and a tool holder drive unit 742 for driving the tool holder 741 to move along the Y-axis direction. The tool holder 741 is used to store the tool head 31. By setting the second linear module 72, the second linear module 72 can drive the flaring module 71 and the pneumatic clamp 73 to move along the X-axis direction. Thus, the flaring module 71 and the pneumatic clamp 73 can be driven to move to a position that matches the length of the workpiece 80 according to the length of the workpiece 80, which meets the flaring requirements of long workpieces 80 and has good applicability.

[0070] The second slide block 721 is slidably connected to the second guide rail 13. The second X-axis drive member 722 is provided with a second X-axis gear (not shown) that meshes with the second rack 14. The second X-axis drive member 722 is a moving motor.

[0071] This invention is applicable to the top concave, drilling and milling, and flaring of hollow pipe fittings, but is not limited to pipe fitting products.

[0072] The working principle of the present invention is as follows: one end of the workpiece 80 is passed through the positioning holes 511 of the multiple bidirectional top-and-bottom mechanisms 40, and the other end of the workpiece 80 is clamped and fixed by the chuck 21.

[0073] The drilling and milling mechanism 30 moves along the X-axis and performs multiple drilling and milling operations on the circumferential outer surface of the workpiece 80, forming holes or grooves on the outer surface of the workpiece 80.

[0074] The first clamping module 41 and the second clamping module 42 on the bidirectional top-and-bottom mechanism 40 clamp and fix the workpiece 80 synchronously. The drive motor 545 on the top-and-bottom module 50 drives the bidirectional lead screw 544 to rotate in the forward direction. The bidirectional lead screw 544 drives the first movable seat 541 and the second movable seat 542 to move closer to each other synchronously, so that the first push rod 5411 and the second push rod 5421 push the corresponding first ejector pin 52 and the second ejector pin 53 respectively to move towards the positioning hole 511. The first tip 521 and the second tip 531 extend into the positioning hole 511 and squeeze the circumferential outer surface of the workpiece 80, so that the outer surface of the workpiece 80 forms the first and second recesses that are arranged opposite to each other.

[0075] The bidirectional lead screw 544 rotates in the opposite direction, and the first movable seat 541 and the second movable seat 542 move away from each other synchronously, causing the first push rod 5411 and the second push rod 5421 to disengage from the first ejector pin 52 and the second ejector pin 53 respectively. The first ejector pin 52 and the second ejector pin 53 retract from the positioning hole 511 under the action of the first spring 522 and the second spring 532 respectively. Then, the first clamping module 41 and the second clamping module 42 simultaneously release the workpiece 80. The first linear module 60 drives the top-drilling module 50, the first clamping module 41 and the second clamping module 42 to move along the X-axis direction to perform top-drilling operation on the next position of the workpiece 80.

[0076] The rotating device 22 drives the chuck 21 to rotate, and the chuck 21 drives the workpiece 80 to rotate. The drilling and milling mechanism 30 and the top-drilling mechanism steps are repeated until the drilling and milling and top-drilling operations are completed on all four sides of the workpiece 80.

[0077] After the drilling, milling and top-drilling operations are completed, the second linear module 72 drives the flaring module 71 and the pneumatic clamp 73 to move along the X-axis. The pneumatic clamp 73 clamps and fixes the other end of the workpiece 80. The Y-axis moving unit 7122 drives the X-axis moving unit 7121 to move to the axis of the port of the workpiece 80. The X-axis moving unit 7121 drives the top block 711 to move towards the port, so that the tapered part 7111 on the top block 711 extends into the port. The outer side wall of the tapered part 7111 abuts against the inner side wall of the port, thereby expanding the port. Thus, the workpiece 80 has completed the drilling, milling, top-drilling and flaring operations.

[0078] In summary, this invention, by setting a clamping mechanism 20, a drilling and milling mechanism 30, and a bidirectional top-and-bottom mechanism 40 on the machine tool 10, and the bidirectional top-and-bottom mechanism 40 including a top-and-bottom module 50 and a first linear module 60, the top-and-bottom module 50 having a first ejector pin 52, a second ejector pin 53, and a driving device 54, during processing, the clamping mechanism 20 clamps and fixes the workpiece 80, the drilling and milling mechanism 30 drills and mills the workpiece 80, and the driving device 54 drives the first ejector pin 52 and the second ejector pin 53 to move relative to each other, so that the first ejector pin 52 and the second ejector pin 53 are pressed on the circumferential outer surface of the workpiece 80 to form a first and a second pit that are arranged opposite to each other, thus realizing the drilling, milling, and top-and-bottom operation. At the same time, both the drilling and milling mechanism 30 and the bidirectional top-and-bottom mechanism 40 can move along the X-axis direction, thereby realizing the processing of long strip workpieces 80. This equipment integrates the drilling and milling mechanism 30 and the bidirectional top-and-bottom mechanism 40, the equipment occupies a small production space, improves production efficiency, reduces production costs, and can also realize the drilling, milling, and top-and-bottom operation of long strip workpieces 80, thus having good applicability.

[0079] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Therefore, any modifications, equivalent substitutions, improvements, etc., made to the above embodiments based on the actual technology of the present invention shall still fall within the scope of the technical solution of the present invention.

Claims

1. A top-dip milling machine, characterized in that, The machine includes a machine base, a clamping mechanism, a drilling and milling mechanism, and a bidirectional top-and-dent mechanism. The drilling and milling mechanism is movably connected to one side of the machine base along the X-axis, and the bidirectional top-and-dent mechanism is movably connected to the other side of the machine base along the X-axis. The clamping mechanism is located between the drilling and milling mechanism and the top-and-dent mechanism. The bidirectional top-and-dent mechanism includes a top-and-dent module and a first linear module. The first linear module can drive the top-and-dent module to move along the X-axis. The top-and-dent module includes a driving device and a first ejector pin and a second ejector pin arranged opposite to each other. The driving device can drive the first ejector pin and the second ejector pin to move relative to each other, so that the first ejector pin and the second ejector pin can press on the circumferential outer surface of the workpiece to form a first pit and a second pit arranged opposite to each other. The top recess module also includes a positioning seat. The first ejector pin is movably mounted on one side of the positioning seat, and the second ejector pin is movably mounted on the other side of the positioning seat. The positioning seat is provided with a positioning hole, which is located between the first ejector pin and the second ejector pin. The driving device can drive the first ejector pin and the second ejector pin to move relative to each other, so that the first ejector pin and the second ejector pin extend into the positioning hole and squeeze the workpiece. The positioning seat has a first guide groove on one side and a second guide groove on the other side. Both the first guide groove and the second guide groove are connected to the positioning hole. The first ejector pin is movably installed in the first guide groove and the second ejector pin is movably installed in the second guide groove. One end of the first ejector pin has a first tip, and a first clearance groove is provided between the first guide groove and the positioning hole for the first tip to move. The first guide groove and the positioning hole are connected through the first clearance groove. One end of the second ejector pin has a second tip, and a second clearance groove is provided between the second guide groove and the positioning hole for the second tip to move. The second guide groove and the positioning hole are connected through the second clearance groove.

2. The top-dip milling machine according to claim 1, characterized in that, The first ejector pin is fitted with a first guide sleeve on its outer side, and the first ejector pin is movably installed in the first guide groove through the first guide sleeve. The second ejector pin is fitted with a second guide sleeve on its outer side, and the second ejector pin is movably installed in the second guide groove through the second guide sleeve.

3. The top-dip milling machine according to claim 1, characterized in that, The driving device includes a first movable seat, a second movable seat, and a driving assembly. The driving assembly can drive the first movable seat and the second movable seat to move synchronously relative to each other, so that the first movable seat and the second movable seat respectively drive the corresponding first ejector pin and the second ejector pin to synchronously squeeze the workpiece.

4. The top-dip milling machine according to claim 1, characterized in that, The drilling and milling mechanism includes a cutter head, a spindle motor, and a transmission device. The cutter head is mounted on the drive end of the spindle motor, and the transmission device can drive the spindle motor to move relative to the machine tool along the X-axis, Y-axis, and Z-axis directions.

5. The top-drilling and milling machine according to claim 1, characterized in that, The clamping mechanism is located at one end of the machine base, and the other end of the machine base is provided with a flaring mechanism. The flaring mechanism is used to enlarge the port at one end of the workpiece. The flaring mechanism includes a flaring module and a second linear module. The second linear module can drive the flaring module to move along the X-axis. The flaring module includes a top block and a moving device that drives the top block to move. One end of the top block is formed with a tapered portion.

6. The top-drilling and milling machine according to claim 5, characterized in that, The moving device includes an X-axis moving unit and a Y-axis moving unit. The top block is connected to the driving end of the X-axis moving unit. The Y-axis moving unit can drive the X-axis moving unit to move along the Y-axis direction. The top block can move with the X-axis moving unit.

7. The top-drilling and milling machine according to any one of claims 1-6, characterized in that, The clamping mechanism includes a chuck and a rotating device that drives the chuck to rotate. The chuck can clamp the workpiece and make the workpiece rotate about its own axis.

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