CN113146320A

CN113146320A - Multi-angle conical zero positioning system

Info

Publication number: CN113146320A
Application number: CN202110455872.7A
Authority: CN
Inventors: 谢广德
Original assignee: Suzhou Set Industrial Equipment System Co ltd
Current assignee: Suzhou Set Industrial Equipment System Co ltd
Priority date: 2021-04-26
Filing date: 2021-04-26
Publication date: 2021-07-23

Abstract

The invention discloses a polygonal conical zero point positioning system. The technical scheme of the invention is as follows: comprises a fixed clamping seat, a piston assembly arranged in the fixed clamping seat and a movable receiving seat which can be fixed or separated from the fixed clamping seat. The scheme provided by the invention solves the problem that the traditional zero positioning system cannot realize heavy cutting when used singly; the material has large shearing resistance and centrifugal force, so that the material is suitable for being used on a lathe; the repeated positioning precision of 0.003mm can be achieved through the matching positioning of the plurality of pyramid-shaped positioning blocks and the conical positioning grooves and the positioning of the datum seat surface.

Description

Multi-angle conical zero positioning system

Technical Field

The invention relates to the technical field of application of tooling clamp jigs of machining centers, in particular to a multi-angle conical zero point positioning system.

Background

The machining center is a highly automated multifunctional numerical control machine tool with a tool magazine and an automatic tool changer, after a workpiece is clamped once in the machining center, the numerical control system can control the machine tool to automatically select and replace tools according to different procedures, automatically change the rotating speed and the feeding amount of a main shaft of the machine tool, the movement track of the tools relative to the workpiece and other auxiliary functions, and sequentially complete the machining of multiple procedures on multiple surfaces of the workpiece. And have multiple tool changing or select the sword function to make production efficiency improve greatly, it is more and more high to the tight locating element's of machining center tight requirement, the old technology of machining center adopts traditional locate mode, and the tight locating element positioning accuracy of conventional clamp can't be guaranteed, and the clamp force is little, needs the supplementary power that does not stop at the during operation in order to reach and keep the clamp force, and single positioning system can't satisfy the condition of heavy cutting, has improved space.

Disclosure of Invention

Aiming at the defects in the prior art, the invention mainly aims to provide a polygonal conical zero point positioning system which has stable clamping force and ensures the high-precision and high-quality processing requirements.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a multiangular toper positioning system at zero point, includes fixed grip slipper, sets up the piston assembly in fixed grip slipper and can be fixed with fixed grip slipper or the activity of separation receives the seat, the piston assembly includes piston and a plurality of springs of compression setting between piston and fixed grip slipper, the tight piece of wedge clamp is connected at the top of piston, the support section of thick bamboo of fixed grip slipper is worn to establish by the wedge clamp piece, the piston drives the tight piece of wedge clamp and moves from top to bottom in the support section of thick bamboo, circumference is provided with a plurality of holding tank that is used for holding the steel ball on the tight piece of wedge clamp, the upper portion of holding tank is provided with the wedge clamping face, correspond at every holding tank department on the support section of thick bamboo and be provided with the through-hole, be provided with the arc ring on the activity receives the seat, correspond through compressing tightly the steel ball and be provided with the receiving tank that can contact the steel ball on the arc ring, thereby the arc clamping face advances activity to receive seat and fixed grip slipper in receiving tank and through-hole The movable receiving seat comprises a supporting cylinder, a plurality of pyramid-shaped positioning blocks are arranged on the supporting cylinder in a circumferential array below the accommodating groove, a plurality of conical positioning grooves corresponding to the pyramid-shaped positioning blocks are formed in the movable receiving seat, the fixed clamping seat comprises a reference seat surface, and the bottom of the movable receiving seat can be attached to the reference seat surface.

Preferably, wedge clamp splice below and the inside gaseous chamber that forms of fixed holder, be provided with the dust exhaust inlet channel with the gaseous chamber intercommunication on the fixed holder, be provided with the dust removal exhaust hole of a plurality of orientation reference seat face on the fixed holder above the reference seat face, be provided with the isolation locating piece of a plurality of and the laminating of activity receiving seat bottom on the reference seat face.

Preferably, a detection port for connecting an air pressure detector is arranged at the joint of the isolation positioning block and the bottom of the movable receiving base.

Preferably, the number of the pyramidal positioning blocks and the number of the pyramidal positioning grooves are 8.

Preferably, the piston is provided with a fixing groove for fixing the spring.

Preferably, the spring is a rectangular spring.

Preferably, a U-shaped sealing ring is arranged between the piston and the fixed clamping seat.

Compared with the prior art, the invention has the following advantages: 1. the problem that heavy cutting cannot be realized when the traditional zero positioning system is used singly is solved; 2. the material has large shearing resistance and centrifugal force, so that the material is suitable for being used on a lathe; 3. the repeated positioning precision of 0.003mm can be achieved through the matching positioning of the plurality of pyramid-shaped positioning blocks and the conical positioning grooves and the positioning of the datum seat surface.

Drawings

FIG. 1 is a schematic view of a relaxed multi-angle cone zero point positioning system;

FIG. 2 is a schematic view of the polygonal cone-shaped zero point positioning system in a clamped state;

FIG. 3 is an exploded view of a multi-angular cone zero point positioning system;

FIG. 4 is a schematic view of a polygonal cone zero point positioning system under rotational stress during cutting;

FIG. 5 is a schematic view showing a polygonal cone zero point positioning system when an axial force is applied during a cutting process.

In the figure: 1. fixing the clamping seat; 2. a movable receiving seat; 3. a piston; 4. a spring; 5. a wedge-shaped clamping block; 6. a support cylinder; 7. steel balls; 8. accommodating grooves; 9. a wedge-shaped clamping surface; 10. a through hole; 11. an arc-shaped ring; 12. a receiving groove; 13. a pyramid-shaped positioning block; 14. a conical positioning groove; 15. a reference seat surface; 16. a gas chamber; 17. a dust removal exhaust hole; 18. isolating the positioning block; 19. a detection port; 20. u-shaped sealing ring.

Detailed Description

The invention will be further explained with reference to the drawings.

As shown in fig. 1, a polygonal cone-shaped zero-point positioning system comprises a fixed clamping seat 1, a piston assembly arranged in the fixed clamping seat 1, and a movable receiving seat 2 capable of being fixed or separated from the fixed clamping seat 1, wherein the piston assembly comprises a piston 3 and a plurality of springs 4 arranged between the piston 3 and the fixed clamping seat 1 in a compression manner, the top of the piston 3 is connected with a wedge-shaped clamping block 5, the wedge-shaped clamping block 5 penetrates through a supporting cylinder 6 of the fixed clamping seat 1, the piston 3 drives the wedge-shaped clamping block 5 to move up and down in the supporting cylinder 6, a plurality of accommodating grooves 8 for accommodating steel balls 7 are circumferentially arranged on the wedge-shaped clamping block 5, a wedge-shaped clamping surface 9 is arranged on the upper portion of each accommodating groove 8 on the supporting cylinder 6, a through hole 10 is correspondingly arranged at each accommodating groove 8, an arc-shaped ring 11 is arranged on the movable receiving seat 2, it can contact receiving tank 12 of steel ball 7 to correspond through-hole 10 department on the arc ring 11, thereby the arc presss from both sides tight face and carries out axial fixity with activity receiving seat 2 and fixed holder 1 through compressing tightly steel ball 7 in receiving tank 12 and through-hole 10, thereby it is provided with a plurality of pyramid locating pieces 13 to support a section of thick bamboo 6 and go up at holding tank 8 below circumference array, be provided with a plurality of toper constant head tanks 14 that correspond the setting with pyramid locating piece 13 on the activity receiving seat 2, fixed holder 1 includes reference seat face 15, the bottom of activity receiving seat 2 can laminate with reference seat face 15.

The multi-angle conical zero point positioning system has the advantages that: 1. the problem that heavy cutting cannot be realized when the traditional zero positioning system is used singly is solved; 2. the material has large shearing resistance and centrifugal force, so that the material is suitable for being used on a lathe; 3. the repeated positioning precision of 0.003mm can be achieved through the matching positioning of the plurality of pyramid-shaped positioning blocks 13 and the cone-shaped positioning grooves 14 and the positioning of the datum seat surface 15.

In particular, the operation of which is described with reference to fig. 1 to 5, in the condition requiring clamping, the movement steps comprise: the movable receiving seat 2 is placed in the fixed clamping seat 1, the oil pressure oil return or mechanical driving mechanism is withdrawn, at the moment, under the action force of the spring 4, the piston 3 moves downwards, at the moment, the wedge-shaped clamping surface moves the steel ball 7 to the outside of the accommodating groove 8, so that the steel ball 7 is positioned in the through hole 10 and simultaneously presses the accommodating groove to the lower part, and the repeated positioning precision of 0.003mm can be continuously kept; under the relaxed state, oil pressure or mechanical drive structure promote piston 3 and wedge clamp 5 upward displacement, and steel ball 7 contracts in to holding tank 8, and activity receiving seat 2 can take out smoothly to can reach quick replacement's purpose.

Referring to fig. 4 and 5, during cutting, since the rotation torque is uniformly borne by 8 surfaces, the rotation constraint performance is extremely superior, and since the axial force during cutting is borne by 3 surfaces or 6 surfaces, stable clamping force can be provided, and high-precision and high-quality machining requirements are met.

Preferably, wedge clamp 5 below and the inside gaseous chamber 16 that forms of fixed holder 1, be provided with the dust exhaust inlet channel with the 16 intercommunication in gaseous chamber on the fixed holder 1, be provided with the dust removal exhaust hole 17 of a plurality of orientation reference seat face 15 above reference seat face 15 on the fixed holder 1, be provided with the isolation locating piece 18 of a plurality of and the laminating of activity receiving seat 2 bottom on the reference seat face 15.

The purpose of this arrangement is to effectively clean the entire surface of the reference seat surface 15 and prevent foreign matter from entering, and the isolation positioning block 18 is provided to ensure gas discharge.

Preferably, a detection port 19 for connecting an air pressure detector is arranged at the joint of the isolation positioning block 18 and the bottom of the movable receiving seat 2. The detection port 19 is provided to detect the pressure between the bottom of the movable receiving base 2 and the insulation positioning block 18, thereby determining the clamping state.

Preferably, the number of the pyramidal positioning blocks 13 and the number of the tapered positioning grooves 14 are 8.

Preferably, the piston 3 is provided with a fixing groove for fixing the spring 4.

Preferably, the spring 4 is a rectangular spring 4.

Preferably, a U-shaped sealing ring 20 is arranged between the piston 3 and the fixed clamping seat 1.

The service life is guaranteed due to the arrangement of the rectangular spring 4, and the sealing performance between the piston 3 and the fixed clamping seat 1 is guaranteed due to the U-shaped sealing ring 20.

The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the invention may occur to those skilled in the art without departing from the principle of the invention, and are considered to be within the scope of the invention.

Claims

1. The utility model provides a multiangular toper positioning system at zero point, includes fixed grip slipper, sets up the piston assembly in fixed grip slipper and can with the fixed grip slipper fixed or the activity receiving seat of separation, its characterized in that: the piston assembly comprises a piston and a plurality of springs arranged between the piston and a fixed clamping seat in a compression mode, the top of the piston is connected with a wedge-shaped clamping block, the wedge-shaped clamping block penetrates through a supporting cylinder of the fixed clamping seat, the piston drives the wedge-shaped clamping block to move up and down in the supporting cylinder, a plurality of accommodating grooves used for accommodating steel balls are circumferentially arranged on the wedge-shaped clamping block, a wedge-shaped clamping surface is arranged at the upper part of each accommodating groove, a through hole is correspondingly formed in each accommodating groove on the supporting cylinder, an arc-shaped ring is arranged on the movable receiving seat, a receiving groove capable of contacting the steel balls is formed in the corresponding through hole on the arc-shaped ring, the arc-shaped clamping surface compresses the steel balls in the receiving groove and the through holes so as to axially fix the movable receiving seat and the fixed clamping seat, and a plurality of pyramid-shaped positioning blocks are circumferentially arranged below the accommodating grooves on the supporting cylinder, the movable receiving seat is provided with a plurality of conical positioning grooves corresponding to the pyramid-shaped positioning blocks, the fixed clamping seat comprises a reference seat surface, and the bottom of the movable receiving seat can be attached to the reference seat surface.

2. The zero point positioning system of claim 1, wherein: wedge clamp splice below and the inside gaseous chamber that forms of fixed holder, be provided with the dust exhaust inlet channel with gaseous chamber intercommunication on the fixed holder, be provided with the dust removal exhaust hole of a plurality of orientation reference seat face on the fixed holder above the reference seat face, be provided with the isolation locating piece of a plurality of and the laminating of activity receiving seat bottom on the reference seat face.

3. The zero point positioning system of claim 2, wherein: and a detection port used for being connected with an air pressure detector is arranged at the joint of the isolation positioning block and the bottom of the movable receiving base.

4. The polygonal cone zero point positioning system according to claim 1 or 3, wherein: the number of the pyramid-shaped positioning blocks and the number of the cone-shaped positioning grooves are 8.

5. The zero point positioning system of claim 4, wherein: the piston is provided with a fixing groove for fixing the spring.

6. The zero point positioning system of claim 5, wherein: the spring is a rectangular spring.

7. The zero point positioning system of claim 6, wherein: and a U-shaped sealing ring is arranged between the piston and the fixed clamping seat.