CN210306314U

CN210306314U - Self-clamping fixture of laser cutting machine

Info

Publication number: CN210306314U
Application number: CN201920654488.8U
Authority: CN
Inventors: 李壮斌; 李朝辉; 李晓衔; 何振鹏
Original assignee: Jiangsu Dncon Laser Technology Co ltd
Current assignee: Jiangsu Dncon Laser Technology Co ltd
Priority date: 2019-05-09
Filing date: 2019-05-09
Publication date: 2020-04-14
Anticipated expiration: 2029-05-09

Abstract

The utility model provides a laser cutting machine self-holding anchor clamps, including left holder, right holder, marble mesa and graphite pipe fitting, left holder and right holder set up respectively on the marble mesa, the graphite pipe fitting clamps on the marble mesa through left holder and right holder clamp respectively, be directed against fragile tubular product specially like the processing of graphite tubular product etc., use simultaneously in the clamp of high inseparable tubular product tightly, it is according to laser head processing position, have and support the function that becomes flexible support according to the processing position and self-adaptation with the clamping, laser cutting's machining precision has further been improved.

Description

Self-clamping fixture of laser cutting machine

Technical Field

The utility model relates to a laser cutting equipment field especially relates to a laser cutting machine is from pressing from both sides tight anchor clamps.

Background

When a metal pipe, especially a graphite pipe, is cut or machined by using laser, the heat effect is very obvious due to the fact that the heat generated by the laser is high, and the laser cutting quality is reduced, for example, patent document (CN 207710110U) discloses a clamp for an optical fiber cutting device, which can limit the end portion and the inner wall of the pipe, so as to clamp the pipe for cutting, but it does not consider that some pipes, such as the graphite pipe, are fragile, and the pipe to be machined may be cracked due to too high clamping force when clamped, so that it is very important to design a clamp which can not lead to the product being cracked due to too high clamping force when clamping the product.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem, the utility model aims at providing a laser cutting machine is from pressing from both sides tight anchor clamps has flexible supporting clamp, specially to the brittle pipe clamping, high accuracy, be suitable for brittle pipe material specially, like graphite pipe processing.

The utility model provides a laser cutting machine self-holding anchor clamps, including left holder, right holder, marble mesa and graphite pipe fitting, left side holder and right holder set up respectively on the marble mesa, the graphite pipe fitting presss from both sides on the marble mesa through left holder and right holder dress respectively, left side holder includes left bottom slider, left branch vaulting pole and left top insert, left side top insert sets up on left bottom slider through left branch vaulting pole, right side holder includes right bottom slider, right branch vaulting pole and right top holder, right side top holder sets up on right bottom slider through right branch vaulting pole, left branch vaulting pole and right branch vaulting pole are cylindric structure, left side bottom slider and right bottom slider structure are the same, all include interior casing, the shell body, set up the guide sleeve on interior casing upper portion, be located the electrical coil circular telegram between interior casing and the shell body, Magnetorheological suspensions and the fixed spring that sets up in interior casing bottom set up in the inner casing, and left branch vaulting pole and right branch vaulting pole pass guide sleeve respectively and can slide from top to bottom in guide sleeve, and left branch vaulting pole and right branch vaulting pole structure are the same, all are provided with at left branch vaulting pole and right branch vaulting pole lower extreme and go up the annular body, down the annular body, and left branch vaulting pole and right branch vaulting pole lower extreme stretch into the inner casing of left bottom slider and right bottom slider respectively, lower extreme butt spring, the other controller that is provided with of marble mesa for control circular telegram coil's electric current.

The further improvement lies in that: the left top inserting piece comprises a left top supporting seat, a left inserting rod piece and an elastic body, the left top supporting seat is fixedly connected with the top of the left supporting rod, the left inserting rod piece is fixedly connected onto the left top supporting seat, the elastic body is arranged on the outer surface of the left inserting rod piece, the left inserting rod piece comprises a conical rod body and a coil positioned on the surface of the conical rod body, the elastic body comprises an elastic wrapping film arranged on the outer surface of the conical rod body, magnetorheological fluid is filled in the elastic wrapping film, a shock pad is arranged outside the elastic wrapping film, when the graphite pipe fitting is clamped, the controller is used for electrifying the electrified coil, so that the magnetorheological fluid is changed into a liquid form, the graphite pipe fitting is inserted into the left top insertion piece, the elastic wrapping film is adapted to the shape of the inner pipe of the graphite pipe fitting and is deformed, the graphite pipe fitting is inserted into a proper position and clamped, the controller is used for controlling the electrified coil to be powered off, and the magnetorheological fluid is changed into a solid structure.

The further improvement lies in that: the right top holder comprises a left outer support sleeve, a right outer support sleeve, a support sleeve hinge shaft, a linkage rod, a left inner clamping pipe, a right inner clamping pipe, a tension line and a locking motor, the left outer support sleeve and the right outer support sleeve are hinged through the support sleeve hinge shaft, the support sleeve hinge shaft is fixedly arranged at the top of the right support rod, the left inner clamping pipe and the right inner clamping pipe are respectively arranged inside the left outer support sleeve and the right outer support sleeve through the linkage rod, the left inner clamping pipe and the right inner clamping pipe are of a semi-circular pipe structure, the other ends of the left outer support sleeve and the right outer support sleeve, which are opposite to the support sleeve hinge shaft, are tensioned through the tension line, one end of the tension line is fixed at the left outer support sleeve and then passes through the right outer support sleeve, then the tension wire passes through the left outer supporting sleeve and returns for many times, the locking motor is fixed on the right outer supporting sleeve, the tail end of the tension wire is fixedly arranged on the locking motor, and the locking of the tension wire is realized through the locking motor.

The further improvement lies in that: the toper body of rod passes through the articulated shaft and rotates to set up on left top supporting seat, realizes that the toper body of rod can rotate round the Y axle.

The further improvement lies in that: the support sleeve hinge shaft is hinged with the right support rod, so that the right top clamping piece rotates around the Y axis.

The further improvement lies in that: and the graphite pipe fitting is provided with a follow-up device.

The further improvement lies in that: the servo device comprises a workpiece locking sleeve, a connecting rod and a laser head locking sleeve, the connecting rod is of an L-shaped structure, the workpiece locking sleeve and the laser head locking sleeve are respectively arranged at two ends of the connecting rod, the workpiece locking sleeve is sleeved outside the graphite pipe fitting, the laser head locking sleeve is of a sleeve-shaped structure formed by hinging two half circular rings, and a locking head is arranged at the tail end of the laser head locking sleeve.

The further improvement lies in that: the guide sleeve is in threaded connection with the upper end of the inner shell.

The utility model discloses beneficial effect: considering the clamping of fragile pipes such as graphite pipes, the pipe clamping is realized by respectively designing an insert structure inserted into the pipe and a clamping structure for clamping the pipe at two ends, meanwhile, the insert is designed into a conical structure, the outer end of the conical structure is provided with an elastic wrapping film filled with magnetorheological fluid, when the pipes with different sizes are required to be clamped, the pipe is electrified to change the magnetorheological fluid into a liquid flowing state and inserted into the pipe, so that the pipe clamping with different diameters can be adapted, the clamping structure at the other side comprises an inner cylinder and an outer cylinder, the inner cylinder and the outer cylinder are connected through a linkage rod, when the pipes inserted into the clamping structure are required to be clamped and positioned, the outer cylinder is clamped through tensioning wires on the tensioning wires, the tensioning wires enable the outer cylinder to be clamped, the clamped outer cylinder transmits the clamping force to the pipes to be clamped through the linkage rod, and through the indirect clamping mode, further guaranteeing the clamping of the fragile pipe. The supporting rod is a rotatable structure, when the pipe to be processed needs to be conveyed from a station facing an operator, the clamping piece structure can be rotated to the direction facing the operator, and after the pipe is inserted, the supporting rod is rotated to the clamping station, so that the convenience of operation is further improved; magnetorheological fluid is used as the bending deformation of the pipe in the sliding base, and is in a solid state in a common clamping state, so that the supporting rod can rotate in the common clamping process, and is electrified to be in a liquid flowing state in the laser head machining process, so that the supporting rod can move up and down, and the bending deformation of the pipe is released by matching with a spring at the lower part of the supporting rod; be provided with the guide sleeve on sliding base upper portion, the bracing piece passes the guide sleeve and reciprocates under guide sleeve's direction, and simultaneously, protruding ring structure on the guide sleeve lower extreme butt bracing piece, the biasing power of spring makes protruding ring still this guide sleeve of butt behind the centre gripping has the pipe fitting, cooperate with flexible support tubular product jointly through guide sleeve and spring, and simultaneously, the guide sleeve is provided with helicitic texture, the biasing power size of spring can be adjusted through rotatory this guide sleeve, further improve equipment's convenience.

Drawings

Fig. 1 is a schematic structural diagram of the present invention installed on a laser cutting machine.

Fig. 2 is a cross-sectional view C-C in fig. 1.

Fig. 3 is a cross-sectional view taken along line D-D in fig. 1.

Fig. 4 is a cross-sectional view E-E of fig. 3.

Fig. 5 is a sectional view F-F in fig. 1.

Fig. 6 is a schematic view of the left insertion rod hinge connection.

Fig. 7 is a main view of the cutting machine with the addition of a follower.

Fig. 8 is a structural sectional view of the follower device.

Wherein: 1-left grip, 11-left bottom slide, 12-left support bar, 13-left top insert, 131-left top support seat, 132-left insert rod, 133-elastomer, 134-conical rod, 135-coil, 136-elastic wrapping film, 137-shock pad, 2-right grip, 21-right bottom slide, 22-right support bar, 23-right top grip, 231-left outer support sleeve, 232-right outer support sleeve, 233-support sleeve hinge, 234-linkage rod, 235-left inner clamping tube, 236-right inner clamping tube, 237-tension line, 238-locking motor, 3-marble table, 31-inner housing, 32-outer housing, 33-guide sleeve, 34-energizing coil, 35-magnetorheological fluid, 36-spring, 37-upper annular body, 38-lower annular body, 4-graphite pipe fitting, 5-follow-up device, 51-workpiece locking sleeve, 52-connecting rod, 53-laser head locking sleeve and 54-locking head.

Detailed Description

In order to deepen the understanding of the present invention, the present invention will be described in detail with reference to the following embodiments, which are only used for explaining the present invention and do not limit the protection scope of the present invention.

As shown in fig. 1-8, this embodiment provides a self-clamping fixture for a laser cutting machine, which includes a left clamping member 1, a right clamping member 2, a marble table 3 and a graphite pipe 4, wherein the left clamping member 1 and the right clamping member 2 are respectively disposed on the marble table 3, the graphite pipe 4 is clamped on the marble table 3 through the left clamping member 1 and the right clamping member 2, the left clamping member 1 includes a left bottom slider 11, a left support rod 12 and a left top insert 13, the left top insert 13 is disposed on the left bottom slider 11 through the left support rod 12, the right clamping member 2 includes a right bottom slider 21, a right support rod 22 and a right top clamping member 23, the right top clamping member 23 is disposed on the right bottom slider 21 through the right support rod 22, the left support rod 12 and the right support rod 22 are cylindrical structures, the left bottom slider 11 and the right bottom slider 21 have the same structure, and both include an inner shell 31, The outer casing 32, set up in the guide sleeve 33 on inner casing 31 upper portion, be located electrical coil 34 between inner casing 31 and outer casing 32, set up magnetorheological suspensions 35 in inner casing 31 and fixed spring 36 who sets up in inner casing 31 bottom, left branch vaulting pole 12 and right branch vaulting pole 22 pass guide sleeve 33 respectively and can slide from top to bottom in guide sleeve 33, left branch vaulting pole 12 is the same with right branch vaulting pole 22 structure, all be provided with upper annular body 37 at left branch vaulting pole 12 and right branch vaulting pole 22 lower extreme, lower annular body 38, left branch vaulting pole 12 and right branch vaulting pole 22 lower extreme stretch into respectively in the inner casing 31 of left bottom slider 11 and right bottom slider 21, lower extreme butt spring 36, the other controller that is provided with of marble mesa 3 for the electric current size of control electrical coil 34. The left top insert 13 comprises a left top support seat 131, a left insert rod 132 and an elastic body 133, the left top support seat 131 is fixedly connected with the top of the left support rod 12, the left insert rod 132 is fixedly connected to the left top support seat 131, the elastic body 133 is arranged on the outer surface of the left insert rod 132, the left insert rod 132 comprises a conical rod 134 and a coil 135 located on the surface of the conical rod, the elastic body 133 comprises an elastic wrapping film 136 arranged on the outer surface of the conical rod 134, magnetorheological fluid 35 is filled in the elastic wrapping film 136, a shock absorption pad 137 is arranged outside the elastic wrapping film 136, when the graphite pipe 4 needs to be clamped, the controller energizes the energized coil 34 to enable the magnetorheological fluid 35 to be in a liquid form, the graphite pipe 4 is inserted into the left top insert 13, the elastic wrapping film 136 deforms in accordance with the shape of the inner pipe of the graphite pipe 4, and after the graphite pipe is clamped at, the controller controls the electrified coil 34 to be powered off, and the magnetorheological fluid becomes a solid structure again. The right top holder 23 includes a left outer support sleeve 231, a right outer support sleeve 232, a support sleeve hinge shaft 233, a linkage rod 234, a left inner clamp tube 235, a right inner clamp tube 236, a tension line 237 and a locking motor 238, the left outer support sleeve 231 and the right outer support sleeve 232 are hinged through the support sleeve hinge shaft 233, the support sleeve hinge shaft 233 is fixedly disposed at the top of the right support rod 22, the left inner clamp tube 235 and the right inner clamp tube 236 are respectively disposed inside the left outer support sleeve 231 and the right outer support sleeve 232 through the linkage rod 234, the left inner clamp tube 235 and the right inner clamp tube 236 are semi-circular tube structures, the other ends of the left outer support sleeve 231 and the right outer support sleeve 232 opposite to the support sleeve hinge shaft 233 are tensioned through the tension line 237, one end of the tension line 237 is fixed to the left outer support sleeve 231, then passes through the right outer support sleeve 232, then passes through the left outer support sleeve 231, and goes back and forth many times, the locking motor 238 is fixed to the right outer support sleeve 232, the end of the tension wire 237 is fixedly arranged on the locking motor 238, and the locking of the tension wire 237 is realized through the locking motor 238. The taper rod body 134 is rotatably disposed on the left top support seat 131 through the hinge shaft 138, so that the taper rod body 134 can rotate around the Y axis. The support sleeve hinge shaft 233 is hinged to the right support rod 22, so that the right top clamping member 23 rotates around the Y axis. And the graphite pipe fitting 4 is provided with a follow-up device 5. The servo device 5 comprises a workpiece locking sleeve 51, a connecting rod 52 and a laser head locking sleeve 53, the connecting rod 52 is of an L-shaped structure, the workpiece locking sleeve 51 and the laser head locking sleeve 53 are respectively arranged at two ends of the connecting rod 52, the workpiece locking sleeve 51 is sleeved outside the graphite pipe fitting 4, the laser head locking sleeve 53 is of a sleeve-shaped structure formed by hinging two half circular rings, and a locking head 54 is arranged at the tail end of the laser head locking sleeve 53. The guide sleeve 33 is screwed to the upper end of the inner housing 31.

Claims

1. The utility model provides a laser cutting machine is from clamping jig, includes left holder (1), right holder (2), marble mesa (3) and graphite pipe fitting (4), and left holder (1) and right holder (2) set up respectively on marble mesa (3), and graphite pipe fitting (4) are through left holder (1) and right holder (2) dress clamp on marble mesa (3) respectively, its characterized in that: the left clamping piece (1) comprises a left bottom sliding block (11), a left supporting rod (12) and a left top inserting piece (13), the left top inserting piece (13) is arranged on the left bottom sliding block (11) through the left supporting rod (12), the right clamping piece (2) comprises a right bottom sliding block (21), a right supporting rod (22) and a right top clamping piece (23), the right top clamping piece (23) is arranged on the right bottom sliding block (21) through the right supporting rod (22), the left supporting rod (12) and the right supporting rod (22) are of cylindrical structures, the left bottom sliding block (11) and the right bottom sliding block (21) are of the same structure and respectively comprise an inner shell (31), an outer shell (32), a guide sleeve (33) arranged on the upper portion of the inner shell (31), an electrified coil (34) positioned between the inner shell (31) and the outer shell (32), magnetorheological fluid (35) arranged in the inner shell (31) and a spring (36) fixedly arranged at the bottom of the inner, left branch vaulting pole (12) and right branch vaulting pole (22) pass guide sleeve (33) respectively and can slide from top to bottom in guide sleeve (33), left branch vaulting pole (12) and right branch vaulting pole (22) structure are the same, all be provided with at left branch vaulting pole (12) and right branch vaulting pole (22) lower extreme and go up the annular body (37), lower annular body (38), left branch vaulting pole (12) and right branch vaulting pole (22) lower extreme stretch into respectively in interior casing (31) of left bottom slider (11) and right bottom slider (21), lower extreme butt spring (36), the other controller that is provided with of marble mesa (3) for the electric current size of control circular telegram coil (34).

2. The laser cutting machine self-clamping fixture of claim 1, characterized in that: the left top inserting piece (13) comprises a left top supporting seat (131), a left inserting rod piece (132) and an elastic body (133), the left top supporting seat (131) is fixedly connected with the top of the left supporting rod (12), the left inserting rod piece (132) is fixedly connected onto the left top supporting seat (131), the elastic body (133) is arranged on the outer surface of the left inserting rod piece (132), the left inserting rod piece (132) comprises a conical rod body (134) and a coil (135) located on the surface of the conical rod body, the elastic body (133) comprises an elastic wrapping film (136) arranged on the outer surface of the conical rod body (134), magnetorheological fluid (35) is filled in the elastic wrapping film (136), a shock absorption pad (137) is arranged outside the elastic wrapping film (136), when the graphite pipe fitting (4) needs to be clamped, the controller energizes the energizing coil (34), and the magnetorheological fluid (35) is changed into a liquid form, outside graphite pipe fitting (4) inside insertion left top plug-in components (13), elasticity wrapping film (136) adapt to the inner tube shape of graphite pipe fitting (4) and warp, insert suitable position and press from both sides tightly the back, the outage of electrical coil (34) is controlled to the controller, and magnetorheological suspensions becomes solid structure again.

3. The laser cutting machine self-clamping fixture of claim 1, characterized in that: the right top clamping piece (23) comprises a left outer supporting sleeve (231), a right outer supporting sleeve (232), a supporting sleeve hinge shaft (233), a linkage rod (234), a left inner clamping pipe (235), a right inner clamping pipe (236), a tensioning line (237) and a locking motor (238), the left outer supporting sleeve (231) and the right outer supporting sleeve (232) are hinged through the supporting sleeve hinge shaft (233), the supporting sleeve hinge shaft (233) is fixedly arranged at the top of the right supporting rod (22), the left inner clamping pipe (235) and the right inner clamping pipe (236) are respectively arranged inside the left outer supporting sleeve (231) and the right outer supporting sleeve (232) through the linkage rod (234), the left inner clamping pipe (235) and the right inner clamping pipe (236) are of a semi-circular pipe structure, the other ends of the left outer supporting sleeve (231) and the right outer supporting sleeve (232) opposite to the supporting sleeve hinge shaft (233) are tensioned through the tensioning line (237), one end of the tensioning line (237) is fixed on the left outer supporting sleeve (231) and passes through the right outer supporting sleeve (231), then the tension wire passes through the left outer supporting sleeve (231) and returns for a plurality of times, the locking motor (238) is fixed on the right outer supporting sleeve (232), the tail end of the tension wire (237) is fixedly arranged on the locking motor (238), and the locking of the tension wire (237) is realized through the locking motor (238).

4. The laser cutting machine self-clamping fixture of claim 2, characterized in that: the toper body of rod (134) passes through articulated shaft (138) and rotates and set up on left top supporting seat (131), realizes that the toper body of rod (134) can rotate round the Y axle.

5. The laser cutting machine self-clamping jig of claim 3, characterized in that: the support sleeve hinge shaft (233) is hinged with the right support rod (22), so that the right top clamping piece (23) rotates around the Y axis.

6. The laser cutting machine self-clamping fixture of claim 1, characterized in that: and the graphite pipe fitting (4) is provided with a follow-up device (5).

7. The laser cutting machine self-clamping fixture of claim 6, characterized in that: follow-up device (5) include work piece lock sleeve (51), connecting rod (52) and laser head lock sleeve (53), and connecting rod (52) are L type structure, and work piece lock sleeve (51) and laser head lock sleeve (53) set up respectively in the both ends of connecting rod (52), and work piece lock sleeve (51) cover is outside at graphite pipe spare (4), and laser head lock sleeve (53) are the nested structure that forms by two half rings are articulated, and are provided with locking head (54) at laser head lock sleeve (53) end.

8. The laser cutting machine self-clamping fixture of claim 1, characterized in that: the guide sleeve (33) is screwed to the upper end of the inner housing (31).