CN113275911A

CN113275911A - Workpiece quick positioning and fixing device for multi-axis machining machine tool

Info

Publication number: CN113275911A
Application number: CN202110551424.7A
Authority: CN
Inventors: 杨阿汛
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-05-20
Filing date: 2021-05-20
Publication date: 2021-08-20

Abstract

The invention relates to the technical field of multi-axis machine tool fixtures, and discloses a device for quickly positioning and fixing a workpiece for a multi-axis machine tool. This multiaxis is quick location of work piece and fixed device for machine tool adjusts the distance of outer end clamping apart from the screw rod outer wall through the length of adjustment telescopic link in movable base, and the cooperation tightens up the location that the difference of flange reason and outside clamping realized the work piece fast, and the rotation of cooperation carousel realizes changing the angle of processing of work piece under the prerequisite of not dismantling the work piece, greatly reduced the machining error of work piece.

Description

Workpiece quick positioning and fixing device for multi-axis machining machine tool

Technical Field

The invention relates to the technical field of multi-axis processing machine tool clamps, in particular to a device for quickly positioning and fixing a workpiece for a multi-axis processing machine tool.

Background

The numerical control machining technology is used as the basis of the modern mechanical manufacturing technology, so that the mechanical manufacturing process is obviously changed, compared with the traditional machining technology, the modern numerical control machining technology has obvious differences in various aspects such as machining process, machining process control, machining equipment and process equipment, the multi-axis numerical control machining is generally called numerical control machining with more than four axes, wherein the five-axis numerical control machining is typical, the multi-axis machining can machine the same part from multiple angles, and can machine a plurality of parts simultaneously, and the machining efficiency of the parts is greatly improved.

In order to guarantee fixed effect, the most unable adjustment of angle that adds of the mounting fixture who is used for multiaxis machine tool work piece that provides among the prior art, need take off the work piece and fix again when using the cutter on the different main shafts to add man-hour to the work piece, it is not only consuming time hard, can not guarantee when taking off the work piece after fixed once more that the work piece is in same horizontal plane with position before, machining error is great, and current anchor clamps can't carry out the centre gripping to a plurality of work pieces simultaneously, the efficiency of work piece processing has been reduced, simultaneously, current anchor clamps are complicated to the positioning process of work piece, the error is great, the suitability is relatively poor, therefore we have provided a device that multiaxis machine tool is fixed with work piece quick location.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides a device for quickly positioning and fixing a workpiece for a multi-axis processing machine tool, which has the advantages of high positioning speed, variable processing angle and capability of clamping a plurality of parts at the same time, and solves the problems of low clamping efficiency, invariable processing angle and incapability of clamping a plurality of parts at the same time of a clamp of the traditional multi-axis processing machine tool.

(II) technical scheme

In order to realize the purposes of high positioning speed, variable processing angle and capability of clamping a plurality of parts at the same time, the invention provides the following technical scheme: a device for quickly positioning and fixing a workpiece for a multi-axis processing machine tool comprises a turntable, wherein the inner wall of the turntable is movably connected with a driving gear, the outer wall of the driving gear is meshed with a fluted disc, the front surface of the fluted disc is meshed with a transmission gear, a driving shaft is inserted in the transmission gear, the outer wall of the driving shaft is sleeved with a limit sleeve, the inner wall of the limit sleeve is fixedly connected with a return spring, the outer wall of the reset spring is fixedly connected with a locking rod, the outer wall of the locking rod is movably connected with a driving shaft, the reverse end of the driving shaft is fixedly connected with a screw rod, the outer wall of the screw rod is movably connected with a movable base, the inner wall of the movable base is movably connected with a telescopic rod, the outer wall of the telescopic rod is fixedly connected with a clamp, the inner wall of the clamp is movably connected with an air bag, and the back of the screw rod is movably connected with a tightening plate.

Preferably, the outer wall of the driving gear is fixedly connected with a hydraulic driving motor, and the bottom wall of the hydraulic driving motor is fixedly connected with the inner wall of the rotary table.

Preferably, the connection mode of drive shaft and locking lever is sliding connection, and the spout that meshes with the locking lever is seted up to the outer wall of drive shaft.

Preferably, the opposite ends of the locking rod are provided with flow guide holes, the inner diameter of each flow guide hole is two millimeters, and the opposite ends of the locking rod are provided with arc-shaped surfaces.

Preferably, the connection mode of activity base and screw rod is threaded connection, and the diapire sliding connection of activity base has the gag lever post.

Preferably, the telescopic rod is connected with the movable base in a sliding manner, and the opposite ends of the telescopic rod are fixedly connected with the supporting base.

Preferably, the inner wall of the clamp is movably connected with an air bag, and the inner wall of the air bag is inserted with a through conduit fixedly connected with the outer wall of the limiting sleeve.

Preferably, the bottom wall of the tightening plate is fixedly connected with a wear-resistant layer, and the wear-resistant layer consists of wear-resistant rubber strips with the thickness of three millimeters.

(III) advantageous effects

Compared with the prior art, the invention provides a device for quickly positioning and fixing a workpiece for a multi-axis machining machine tool, which has the following beneficial effects:

1. this multiaxis is quick location of work piece and fixed device for machine tool, tighten up gradually and support the work piece at the diapire of tightening plate through the clamping, gas in the gasbag is given the holding power of check lock lever towards the drive shaft direction by extrusion in entering into spacing sleeve gradually, the check lock lever can't contract in spacing sleeve this moment, this side drive shaft lock dies, screw rod stall promptly, the clamping is firm with the tightening plate with the work piece centre gripping, thereby drive gear still drives the fluted disc and rotates and drive gear and rotate, the drive gear of this side takes place relative rotation with the drive shaft, all accomplish the work piece is fixed to whole clamping and tightening plate, can carry out the centre gripping simultaneously to a plurality of work pieces fixedly, the machining efficiency of work piece has been improved greatly.

2. This multiaxis is quick location of work piece and fixed device for machine tool adjusts the distance of outer end clamping apart from the screw rod outer wall through the length of adjustment telescopic link in movable base, and the cooperation tightens up the location that the difference of flange reason and outside clamping realized the work piece fast, and the rotation of cooperation carousel realizes changing the angle of processing of work piece under the prerequisite of not dismantling the work piece, greatly reduced the machining error of work piece.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic structural view of a turntable assembly according to the present invention;

FIG. 3 is a schematic view of a spacing sleeve according to the present invention;

FIG. 4 is a schematic structural view of a take-up plate assembly of the present invention;

FIG. 5 is a schematic view of a clip construction according to the present invention;

FIG. 6 is a schematic view of the structure of the area A in FIG. 3 according to the present invention.

In the figure: 1. a turntable; 2. a fluted disc; 3. tightening the plate; 4. a drive gear; 5. a drive shaft; 6. a limiting sleeve; 7. a transmission gear; 8. a screw; 9. a movable base; 10. a telescopic rod; 11. clamping; 12. an air bag; 13. a return spring; 14. a locking lever; 15. and a wear-resistant layer.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-6, a device for quickly positioning and fixing a workpiece for a multi-axis processing machine tool comprises a turntable 1, wherein the inner wall of the turntable 1 is movably connected with a driving gear 4, the outer wall of the driving gear 4 is fixedly connected with a hydraulic driving motor, the bottom wall of the hydraulic driving motor is fixedly connected with the inner wall of the turntable 1, the outer wall of the driving gear 4 is meshed with a fluted disc 2, the front side of the fluted disc 2 is meshed with a transmission gear 7, a driving shaft 5 is inserted into the transmission gear 7, the driving shaft 5 is connected with a locking rod 14 in a sliding manner, the outer wall of the driving shaft 5 is provided with a sliding chute meshed with the locking rod 14, the outer wall of the driving shaft 5 is sleeved with a limiting sleeve 6, the inner wall of the limiting sleeve 6 is fixedly connected with a return spring 13, the outer wall of the return spring 13 is fixedly connected with, the opposite end of the locking rod 14 is provided with an arc-shaped surface, the outer wall of the locking rod 14 is movably connected with a driving shaft 5, the opposite end of the driving shaft 5 is fixedly connected with a screw rod 8, the outer wall of the screw rod 8 is movably connected with a movable base 9, the movable base 9 is in threaded connection with the screw rod 8, the bottom wall of the movable base 9 is in sliding connection with a limiting rod, the inner wall of the movable base 9 is movably connected with a telescopic rod 10, the telescopic rod 10 is in sliding connection with the movable base 9, the opposite end of the telescopic rod 10 is fixedly connected with a supporting base, the outer wall of the telescopic rod 10 is fixedly connected with a clamp 11, the inner wall of the clamp 11 is movably connected with an air bag 12, the inner wall of the air bag 12 is inserted with a through pipe and is fixedly connected with the outer wall of the limiting sleeve 6, the inner wall of the clamp 11 is movably connected with the air bag 12, the opposite end of the screw rod 8 is movably connected with a tightening plate 3, and the bottom wall of the tightening plate 3 is fixedly connected with a wear-resistant layer 15, the wear layer 15 consists of a wear-resistant rubber strip with a thickness of three millimeters.

The working principle is that when the device is used, the length of the telescopic rod 10 is adjusted, the telescopic rod 10 drives the clamp 11 to slide in the movable base 9, a workpiece to be clamped is placed between the tightening plate 3 and the clamp 11, the driving gear 4 drives the fluted disc 2 to rotate, the fluted disc 2 drives the transmission gear 7 to rotate so as to drive the driving shaft 5 to rotate, the driving shaft 5 gives pressure to the locking rod 14 in a direction opposite to the driving shaft 5 when rotating, the locking rod 14 overcomes the resistance of the reset spring 13 and contracts towards the limiting sleeve 6, the driving shaft 5 drives the screw rod 8 to rotate so as to enable the movable base 9 to gradually approach the tightening plate 3, the clamp 11 gradually tightens to press the workpiece against the bottom wall of the tightening plate 3, the wear-resistant layer 15 gradually deforms, meanwhile, gas in the air bag 12 is gradually pressed out, the gas gives a supporting force to the locking rod 14 towards the driving shaft 5 after entering the limiting sleeve 6, and the locking rod 14 cannot contract towards the limiting sleeve 6, this 5 locks of side drive shaft, screw rod 8 stall promptly, clamping 11 is firm with the work piece centre gripping with tightening plate 3, at this moment, thereby drive gear 4 still drives fluted disc 2 and rotates and drive gear 7 and rotate, the relative rotation takes place for drive gear 7 and drive shaft 5 of this side, with the same principle, up to whole clamping 11 and tightening plate 3 all with the fixed completion back of work piece, drive gear 4 stall, when the angle of processing of work piece needs to be adjusted, only need rotate carousel 1 can, need not to carry out the dismouting to the work piece again, avoid causing the work piece no longer to lead to the great problem of machining error at same horizontal plane.

In conclusion, the device for quickly positioning and fixing the workpiece for the multi-axis machining tool gradually tightens the clamping clip 11 to press the workpiece against the bottom wall of the tightening plate 3, the gas in the air bag 12 is gradually pressed out and enters the limiting sleeve 6 to provide a supporting force for the locking rod 14 towards the direction of the driving shaft 5, at the moment, the locking rod 14 cannot contract towards the limiting sleeve 6, the driving shaft 5 at the side is locked, namely the screw 8 stops rotating, the clamping clip 11 and the tightening plate 3 firmly clamp the workpiece, the driving gear 4 still drives the fluted disc 2 to rotate so as to drive the transmission gear 7 to rotate, the transmission gear 7 at the side and the driving shaft 5 relatively rotate until all the clamping clips 11 and the tightening plate 3 complete the fixation of the workpiece, a plurality of workpieces can be clamped and fixed at the same time, and the machining efficiency of the workpiece is greatly improved; the distance between the outer end clamp 11 and the outer wall of the screw rod 8 is adjusted by adjusting the length of the telescopic rod 10 in the movable base 9, the positioning of a workpiece is quickly realized by matching the difference value between the edge of the tightening plate 3 and the outer side clamp 11, the machining angle of the workpiece is changed on the premise of not disassembling the workpiece by matching the rotation of the turntable 1, and the machining error of the workpiece is greatly reduced.

Having shown and described embodiments of the present invention, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in the embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a multiaxis is quick location of work piece and fixed device for machine tool, includes carousel (1), its characterized in that: the inner wall swing joint of carousel (1) has drive gear (4), the outer wall meshing of drive gear (4) has fluted disc (2), the front meshing of fluted disc (2) has drive gear (7), the inside grafting of drive gear (7) has drive shaft (5), the outer wall of drive shaft (5) has cup jointed spacing sleeve (6), the inner wall fixedly connected with reset spring (13) of spacing sleeve (6), the outer wall fixedly connected with check lock lever (14) of reset spring (13), the outer wall swing joint of check lock lever (14) has drive shaft (5), the back of the body end fixedly connected with screw rod (8) of drive shaft (5), the outer wall swing joint of screw rod (8) has mobile base (9), the inner wall swing joint of mobile base (9) has telescopic link (10), the outer wall fixedly connected with clamping (11) of telescopic link (10), the inner wall of the clamp (11) is movably connected with an air bag (12), and the back end of the screw rod (8) is movably connected with a tightening plate (3).

2. The device for quickly positioning and fixing the workpiece for the multi-axis processing machine tool as set forth in claim 1, wherein: the outer wall fixedly connected with hydraulic drive motor of drive gear (4), the diapire of hydraulic drive motor and the inner wall fixed connection of carousel (1).

3. The device for quickly positioning and fixing the workpiece for the multi-axis processing machine tool as set forth in claim 1, wherein: the driving shaft (5) is connected with the locking rod (14) in a sliding mode, and a sliding groove meshed with the locking rod (14) is formed in the outer wall of the driving shaft (5).

4. The device for quickly positioning and fixing the workpiece for the multi-axis processing machine tool as set forth in claim 1, wherein: the opposite ends of the locking rod (14) are provided with flow guide holes, the inner diameter of each flow guide hole is two millimeters, and the opposite ends of the locking rod (14) are provided with arc-shaped surfaces.

5. The device for quickly positioning and fixing the workpiece for the multi-axis processing machine tool as set forth in claim 1, wherein: the movable base (9) is connected with the screw (8) in a threaded manner, and the bottom wall of the movable base (9) is connected with a limiting rod in a sliding manner.

6. The device for quickly positioning and fixing the workpiece for the multi-axis processing machine tool as set forth in claim 1, wherein: the telescopic rod (10) is connected with the movable base (9) in a sliding mode, and the opposite ends of the telescopic rod (10) are fixedly connected with the supporting base.

7. The device for quickly positioning and fixing the workpiece for the multi-axis processing machine tool as set forth in claim 1, wherein: the inner wall of the clamp (11) is movably connected with an air bag (12), and the inner wall of the air bag (12) is inserted with a through pipe and fixedly connected with the outer wall of the limiting sleeve (6).

8. The device for quickly positioning and fixing the workpiece for the multi-axis processing machine tool as set forth in claim 1, wherein: the bottom wall of the tightening plate (3) is fixedly connected with a wear-resistant layer (15), and the wear-resistant layer (15) is composed of wear-resistant rubber strips with the thickness of three millimeters.