阅读说明：本技术 一种用于中空管内切式的数控切割机床 (numerical control cutting machine tool for hollow pipe internal cutting ) 是由 庄小梅 于 2019-10-29 设计创作，主要内容包括：本发明公开了一种用于中空管内切式的数控切割机床,其结构包括有数控铣床本体、内切式装置、上液压缸、上夹紧装置、中空管、直线传动装置、下夹紧装置、下液压缸,数控铣床本体的内顶面垂直连接有上液压缸,与现有技术相比,本发明的有益效果在于：能对中空管进行夹紧,便于对中空管的切割,同时能适应于不同口径大小的中空管的夹紧,适用范围广,能对中空管进行分段切割,在切割完毕后,内切式装置还能在直线传动装置的驱动作用下将切割后的中空管推出来,切割时能有效防止切割屑四处飞溅,避免切割屑对作业员造成危害,对作业员具有较高的安全保障性,同时多个切割轮同步对中空管进行切割,增加切割面积,提高切割效率,缩短切割时间。(The invention discloses numerical control cutting machine tools for hollow pipe internal cutting, which structurally comprises a numerical control milling machine body, an internal cutting device, an upper hydraulic cylinder, an upper clamping device, a hollow pipe, a linear transmission device, a lower clamping device and a lower hydraulic cylinder, wherein the upper hydraulic cylinder is vertically connected with the inner top surface of the numerical control milling machine body.)

The utility model provides an a numerical control cutting off machine for hollow tube inscribed formula, its structure includes numerically controlled fraise machine body (1), inscribed formula device (2), goes up hydraulic cylinder (3), goes up clamping device (4), hollow tube (5), linear transmission device (6), lower clamping device (7), lower hydraulic cylinder (8), numerical control fraise machine body (1) inner top links to each other with last clamping device (4) through last hydraulic cylinder (3), and the inner bottom meets with lower clamping device (7) through lower hydraulic cylinder (8), be equipped with hollow tube (5) down between clamping device (7) and last clamping device (4), hollow tube (5) both sides all are equipped with linear transmission device (6) of being connected with inscribed formula device (2), its characterized in that:

the inner cutting device (2) comprises a cutting disc (21), a micro motor (22) and a connecting disc (23), the micro motor (22) is connected with the connecting disc (23), and the connecting disc (23) is connected with the cutting disc (21) and a linear transmission device (6).

2. The numerical control cutting machine tool for hollow tube inscribed type is characterized in that the cutting disk (21) comprises a disk body (G1), a cutting mechanism (G2), a rotating assembly (G3) and a fixing ring (G4), six groups of cutting mechanisms (G2) connected with the rotating assembly (G3) are arranged in the disk body (G1), and the rotating assembly (G3) is connected with the disk body (G1) with the fixing ring (G4).

3. The numerical control cutting machine for hollow tube inscribed mode is characterized in that the cutting mechanism (G2) comprises driven gears (G21), cutting wheels (G22), a rotating shaft (G23), a bracket (G24), a screw rod (G25), a nut pair (G26) and driven bevel gears (G27), the rotating shaft (G23) is provided with cutting wheels (G22) and two driven gears (G21), the rotating shaft (G23) is further connected with the bracket (G24), the bracket (G24) is fixedly provided with the nut pair (G26) connected with the screw rod (G25), the screw rod (G25) is further provided with the driven bevel gears (G27), and the driven bevel gears (G27) and the driven gears (G21) are matched with a rotating assembly (G3).

4. The numerical control cutting machine tool for hollow tube inscribed type is characterized in that the rotating assembly (G3) comprises a connecting shaft (G31), a driving gear (G32), a driving bevel gear (G33) and a connecting block (G34), driving bevel gears (G33) are arranged at two ends of the connecting shaft (G31), the driving bevel gears (G33) are connected with the driving gear (G32) through the connecting block (G34), the driving gear (G32) is connected with a driven gear (G21), the driving bevel gear (G33) is meshed with the driven bevel gear (G27), the connecting shaft (G31) is connected with a disc body (G1) and a connecting disc (23), and a fixing ring (G4) is arranged between the two driving gears (G32).

5. The numerical control cutting machine tool for hollow tube inscribed type according to claim 2 or 4, characterized in that, the fixed ring (G4) includes a through hole (G41), a ring body (G42), and a trapezoidal opening (G43), six trapezoidal openings (G43) are opened on the ring body (G42), a through hole (G41) is provided between two adjacent trapezoidal openings (G43), the through hole (G41) is movably connected with a screw rod (G25), and the ring body (G42) is connected with a disk body (G1).

Technical Field

The invention relates to the technical field of numerical control milling machines, in particular to numerical control cutting machines for hollow pipe internal cutting.

Background

The numerical control machine tool is which is a machine tool used in at present, and is different from a traditional machine tool, the numerical control machine tool can perform more accurate processing operation, and the numerical control cutting machine tool is widely applied to hollow pipes for segmented cutting.

Current cutting off machine all is from interior cutting outside to the cutting mode of hollow tube, and cutting bits can splash everywhere when can lead to the cutting, and the cutting bits is very sharp, very big probably causes harm to the operator, and in addition, adopt single cutting wheel to cut the hollow tube, the contact surface of cutting wheel and hollow tube is little promptly, cutting efficiency is low, and cutting time is long.

Disclosure of Invention

The invention mainly aims to overcome the defects of the prior art and provides numerical control cutting machines for hollow pipe internal cutting.

numerical control cutting machine tool for hollow tube internal cutting, its structure includes the numerical control milling machine body, the internal cutting device, the upper hydraulic cylinder, the upper clamping device, the hollow tube, the linear drive device, the lower clamping device, the lower hydraulic cylinder, the inner top surface of the said numerical control milling machine body connects with the upper hydraulic cylinder vertically, the said upper hydraulic cylinder is fixedly connected with top surface of the upper clamping device, the said lower hydraulic cylinder is connected with the inner bottom surface of the numerical control milling machine body vertically, the said lower hydraulic cylinder connects to the lower clamping device, there is a hollow tube between upper clamping device and the said lower clamping device, the said hollow tube both sides have linear drive devices, the said linear drive device has two sets of parallel arrangement and all connects with the internal cutting device;

the inner cutting device comprises a cutting disc, a micro motor and a connecting disc, an output shaft of the micro motor is fixedly connected with the center of the connecting disc, the connecting disc is connected with the cutting disc which is concentric with the connecting disc, and the connecting disc is connected with the linear transmission device.

As optimization, the cutting disc is including disk body, cutting mechanism, rotating assembly, solid fixed ring, all be equipped with cutting mechanism on the six partition positions in the disk body, cutting mechanism all with rotating assembly swing joint, rotating assembly is connected with the disk body, the internal solid fixed ring that is connected with of disk.

As optimization, cutting mechanism is including driven gear, cutting wheel, pivot, support, lead screw, nut pair, driven bevel gear, driven gear is all installed at the both ends of pivot, two be equipped with the cutting wheel of being connected with the pivot between the driven gear, there is the support with pivot complex between driven gear and the cutting wheel, terminal fixedly connected with nut pair of support, nut pair and lead screw threaded connection, the lead screw still interference fit has driven bevel gear, driven gear and rotating assembly cooperation, clearance fit is adopted with the expansion gap of disk body to the cutting wheel.

As optimization, the rotating assembly comprises a connecting shaft, a driving gear, a driving bevel gear and a connecting block, the driving bevel gear is excessively matched at two ends of the center of the connecting shaft, the outer wall of the driving bevel gear is connected with the inner wall of the driving gear through the connecting block at six equal divisions, the driving gear and the driving bevel gear are arranged in a concentric wheel structure, the driving gear is meshed with a driven gear, the driving bevel gear is meshed with the driven bevel gear, the connecting shaft is connected with the disc body, a fixing ring is arranged between the two driving gears, and the connecting shaft is vertically connected to the connecting disc.

As optimization, fixed ring is including through-hole, ring body, trapezoidal opening has all been seted up on the six partition positions of ring body, adjacent two be equipped with the through-hole between the trapezoidal opening, the through-hole is integrated structure settings with the ring body, through-hole and lead screw swing joint, the outer wall of ring body and the inner wall fixed connection of disk body.

Advantageous effects

Compared with the prior art, the invention provides types, which have the following beneficial effects:

(I) the hollow pipe is placed on the lower clamping device, the upper clamping device and the lower clamping device clamp the hollow pipe in the center through the upper hydraulic cylinder and the lower hydraulic cylinder, the hollow pipe is conveniently cut, meanwhile, the hollow pipe can be suitable for clamping hollow pipes with different calibers, the application range is , the inner cutting device enters the hollow pipe to be placed through driving the linear transmission device, when cuts are cut off, the inner cutting device moves forwards through the linear transmission device for a certain distance of to cut a lower street, and after the cutting is finished, the inner cutting device can push out the cut hollow pipe under the driving action of the linear transmission device;

(II) the invention drives the connecting shaft and the disc body to rotate through the connecting disc by driving the micromotor, thereby enabling the driving gear and the driving bevel gear to synchronously rotate, and the driving bevel gear drives the driven bevel gear to rotate when rotating, so that the screw rod is linked, the nut pair drives the bracket to move, so that the cutting wheel extends outwards towards the movable opening of the disc body and can be suitable for cutting hollow pipes with different calibers, the driving gear can drive the driven gear to rotate when rotating, so that the cutting wheel can rotate through the rotating shaft, thereby leading the cutting wheel to rotate outwards from the inner wall of the hollow pipe for cutting, effectively preventing cutting scraps from splashing everywhere, avoiding the damage of the cutting scraps to operators, have higher safety guarantee nature to the operator, a plurality of cutting wheels are simultaneously cutting the hollow tube in step, increase the cutting area, improve cutting efficiency, shorten the cutting time.

Drawings

Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:

FIG. 1 is a schematic structural diagram of CNC cutting machines for hollow pipe inner cutting.

Fig. 2 is a schematic structural diagram of the inscribed device of the invention.

Fig. 3 is a schematic diagram of the internal structure of the inscribed device of the invention.

Fig. 4 is a schematic structural diagram of the cutting mechanism of the present invention.

Fig. 5 is a schematic structural diagram of the rotating assembly of the present invention.

Fig. 6 is a schematic structural diagram of a ring of the present invention.

In the drawings, the corresponding relationship between the component names and the reference numbers is as follows:

the numerical control milling machine comprises a numerical control milling machine body-1, an internal cutting device-2, an upper hydraulic cylinder-3, an upper clamping device-4, a hollow tube-5, a linear transmission device-6, a lower clamping device-7, a lower hydraulic cylinder-8, a cutting disc-21, a micro motor-22, a connecting disc-23, a disc body-G1, a cutting mechanism-G2, a rotating assembly-G3, a fixing ring-G4, a driven gear-G21, a cutting wheel-G22, a rotating shaft-G23, a bracket-G24, a screw rod-G25, a nut pair-G26, a driven bevel gear-G27, a G31, a driving gear-G32, a driving bevel gear-G33, a connecting shaft-G34, a through hole-G41, a ring body-G42 and a trapezoidal opening-G43.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only partial embodiments of of the present invention, rather than all embodiments.

In the description of the present invention, it should be noted that unless otherwise explicitly stated or limited, the terms "connected" and "connected" shall be construed , and for example, may be a fixed connection, a detachable connection, or physically connected, may be a mechanical connection, an electrical connection, a direct connection, or an indirect connection via an intermediary.

Referring to fig. 1-6, the invention provides numerical control cutting machine tool technical schemes for hollow tube internal cutting, which structurally comprises a numerical control milling machine body 1, an internal cutting device 2, an upper hydraulic cylinder 3, an upper clamping device 4, a hollow tube 5, a linear transmission device 6, a lower clamping device 7 and a lower hydraulic cylinder 8, wherein the inner top surface of the numerical control milling machine body 1 is vertically connected with the upper hydraulic cylinder 3, the upper hydraulic cylinder 3 is fixedly connected with the top surface of the upper clamping device 4, the lower hydraulic cylinder 8 is vertically connected with the inner bottom surface of the numerical control milling machine body 1, the lower hydraulic cylinder 8 is connected with the lower clamping device 7, a hollow tube 5 is arranged between the lower clamping device 7 and the upper clamping device 4, two linear transmission devices 6 are arranged on two sides of the hollow tube 5, and the linear transmission devices 6 are arranged in parallel and are connected with the internal cutting device 2;

the upper clamping device 4, the lower clamping device 7, the upper hydraulic cylinder 3 and the lower hydraulic cylinder 8 are arranged to clamp the hollow pipe 5, so that the hollow pipe 5 can be conveniently cut, and meanwhile, the hollow pipe clamp device can be suitable for clamping hollow pipes 5 with different calibers, and the application range is .

The inner cutting device 2 comprises a cutting disc 21, a micro motor 22 and a connecting disc 23, an output shaft of the micro motor 22 is fixedly connected with the center of the connecting disc 23, the connecting disc 23 is connected with the cutting disc 21 which is concentric with the connecting disc 23, and the connecting disc 23 is connected with the linear transmission device 6.

Cutting dish 21 is including disk body G1, cutting mechanism G2, rotating assembly G3, solid fixed ring G4, all be equipped with cutting mechanism G2 in the disk body G1 on six partition positions, cutting mechanism G2 all with rotating assembly G3 swing joint, rotating assembly G3 is connected with disk body G1, disk body G1 in-connection has solid fixed ring G4, cutting mechanism G2 set up lie in can cutting hollow tube 5, and can be applicable to the cutting of different bore hollow tubes.

The cutting mechanism G2 comprises a driven gear G21, a cutting wheel G22, a rotating shaft G23, a support G24, a screw rod G25, a nut pair G26 and a driven bevel gear G27, driven gears G21 are mounted at two tail ends of the rotating shaft G23, a cutting wheel G22 connected with the rotating shaft G23 is arranged between the two driven gears G21, a support G24 matched with the rotating shaft G23 is arranged between the driven gear G21 and the cutting wheel G22, the tail end of of the support G24 is fixedly connected with a nut pair G26, the nut pair G26 is in threaded connection with the screw rod G25, the screw rod G25 is also in interference fit with a driven bevel gear G27, the driven bevel gear G27 and the driven gear G21 are matched with a rotating assembly G3, the cutting wheel G22 is in clearance fit with a movable opening of a disc G1, and the support G24 is arranged in a manner of accommodating the G25 and occupying the space.

The rotating assembly G3 comprises a connecting shaft G31, a driving gear G32, a driving bevel gear G33 and a connecting block G34, wherein the driving bevel gear G33 is excessively matched at two ends of the center of the connecting shaft G31, six equal parts of the outer wall of the driving bevel gear G33 are connected with the inner wall of a driving gear G32 through the connecting block G34, the driving gear G32 and the driving bevel gear G33 are arranged in a concentric wheel structure, the driving gear G32 is meshed with a driven gear G21, the driving bevel gear G33 is meshed with a driven bevel gear G27, the connecting shaft G31 is connected with a disc body G1, a fixing ring G4 is arranged between the two driving gears G32, the connecting shaft G31 is vertically connected with the connecting disc 23, and the connecting block G34 is arranged in a mode that the driving bevel gear G33 and the driving gear G32 are fixedly installed at so that the two driving gears can rotate.

The fixing ring G4 comprises a through hole G41, a ring body G42 and a trapezoidal opening G43, the trapezoidal opening G43 is formed in six equal parts of the ring body G42, two adjacent trapezoidal openings G43 are provided with a through hole G41, the through hole G41 and the ring body G42 are arranged in a -body structure, the through hole G41 is movably connected with the screw rod G25, the outer wall of the ring body G42 is fixedly connected with the inner wall of the disc body G1, the trapezoidal opening G43 is arranged to accommodate a cutting wheel G22 and a driven gear G21, and the through hole G41 is arranged to install the screw rod G25.

The working principle of the invention is that a hollow tube 5 is placed on a lower clamping device 7, an upper clamping device 4 and the lower clamping device 7 clamp the hollow tube 5 centrally through an upper hydraulic cylinder 3 and a lower hydraulic cylinder 8, an internal cutting device 2 enters the hollow tube 5 through driving a linear transmission device 6, when sections are cut off, the internal cutting device 2 moves forward for a certain distance through the linear transmission device 6 to cut a lower street, and after the cutting is finished, the internal cutting device 2 can push out the cut hollow tube under the driving action of the linear transmission device 6;

the working principle of the inner cutting device 2 for cutting the hollow pipe 5 is as follows: drive micromotor 22 passes through connection pad 23 and drives connecting axle G31, disk body G1 is rotatory, thereby make driving gear G32, drive bevel gear G33 rotates in step, drive bevel gear G33 can drive driven bevel gear G27 rotatory when rotatory, thereby make lead screw G25 take place the linkage, and then drive support G24 through nut pair G26 and remove, and then make cutting wheel G22 outwards extend to disk body G1 activity mouth, driving gear G32 can drive driven gear G21 rotatory when rotatory, thereby make cutting wheel G22 rotatory through pivot G23, and then make cutting wheel G22 outwards rotate the cutting from the inner wall of hollow tube 5.

In summary, the technical progress obtained by the invention compared with the prior art is as follows:

(1) the hollow pipe can be clamped, so that the hollow pipe can be conveniently cut, and meanwhile, the hollow pipe clamp can be suitable for clamping hollow pipes with different calibers, and the application range is ;

(2) the internal cutting device can cut the hollow pipe in sections by driving the linear transmission device, and can push out the cut hollow pipe under the driving action of the linear transmission device after the cutting is finished;

(3) can be applicable to the hollow tube of different bore sizes and cut, can effectively prevent that the cutting bits from splashing everywhere during the cutting, avoid the cutting bits to cause harm to the operator, have higher safety guarantee nature to the operator, a plurality of cutting wheels cut the hollow tube in step simultaneously, increase the cutting area, improve cutting efficiency, shorten the cutting time.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the invention can be made, and equivalents and modifications of some features of the invention can be made without departing from the spirit and scope of the invention.