CN217666509U

CN217666509U - Core expansion precision tool

Info

Publication number: CN217666509U
Application number: CN202221463165.9U
Authority: CN
Inventors: 赵大成; 王建新; 刘明; 张孙; 雷晓伟; 谢新喜
Original assignee: Xi'an Zhicheng Xinyuan Electromechanical Technology Co ltd
Current assignee: Xi'an Zhicheng Xinyuan Electromechanical Technology Co ltd
Priority date: 2022-06-13
Filing date: 2022-06-13
Publication date: 2022-10-28
Anticipated expiration: 2032-06-13

Abstract

The utility model relates to a machining technology field has proposed the accurate frock of core that rises, including the lathe main shaft, the ring flange is installed to one side of lathe main shaft, and one side of ring flange is inside to be equipped with screw thread transition cover, and the internally mounted of screw thread transition cover has the frock pull rod, and the dabber is installed to one side of ring flange. Through the technical scheme, the outside of the sleeve is expanded in workpiece installation, thereby the screw thread transition sleeve is promoted in the pull rod of the machine tool, the movement of the screw thread transition sleeve drives the tool pull rod and the positioning ring to move forwards to the inside of the sleeve, then the pull rod of the machine tool is pulled back to drive the tool pull rod and then drive the sleeve, the sleeve and the mandrel are matched in angle, so the sleeve can expand in parallel, thereby the workpiece is supported in the sleeve, the clamping is realized, the repeated clamping precision is favorably improved, the clamping speed is increased, the working efficiency is improved while the working difficulty is reduced, and the problem of low clamping speed in the prior art is solved.

Description

Core expansion precision tool

Technical Field

The utility model relates to a machinery processing technology field, it is specific, relate to the core precision frock that rises.

Background

Machining refers to a process of changing the physical dimensions or properties of a workpiece by a mechanical device.

The Chinese patent discloses a core expanding tool (with an authorization publication number of CN 206981787U), which comprises a tool disc and a cylindrical core expanding piece, wherein one side of the tool disc is provided with a conical table, the large end part of the conical table is connected with the tool disc, and the small end part of the conical table is provided with an internal thread hole; one end of the core expanding piece is provided with a conical hole, the other end of the core expanding piece is provided with a through hole communicated with the conical hole, and the core expanding piece is sleeved on the conical table through the conical hole; the locking bolt is inserted into the through hole and the corresponding internal threaded hole, and the expansion core piece is fixed on the tool disc; the core expanding piece is provided with a first open slot, and the opening of the first open slot is positioned at one end of the core expanding piece facing the tool disc. When the core expanding piece is gradually locked with the tool disc by rotating the locking bolt, the outer side wall of the conical table gradually abuts against the inner wall of the conical hole, the outer side wall of the core expanding piece is expanded through the first open slot, and the function of expanding the workpiece to be processed is achieved. The clamping device has the advantages of being simple in structure, convenient to position and assemble, capable of improving the tensioning force of the expansion core piece and the workpiece to be machined, convenient to operate on site, low in repeated clamping accuracy and low in clamping speed. Accordingly, one skilled in the art provides a subject to solve the problems set forth in the background above.

SUMMERY OF THE UTILITY MODEL

The utility model provides an accurate frock of core that rises has solved the accurate frock problem of core that rises among the correlation technique.

The technical scheme of the utility model as follows: the precision tooling for the expansion core comprises a machine tool main shaft, wherein a flange plate is installed on one side of the machine tool main shaft, a thread transition sleeve is arranged inside one side of the flange plate, a tooling pull rod is installed inside the thread transition sleeve, a mandrel is installed on one side of the flange plate, one side of the tooling pull rod extends to the inside of the mandrel and is in sliding connection with the mandrel, an expansion sleeve is installed outside the mandrel, one end of the tooling pull rod extends to the outside of the mandrel and is provided with a positioning ring, and a workpiece is arranged outside the expansion sleeve.

Preferably, a machine tool pull rod is installed on one side, close to the machine tool spindle, of the threaded transition sleeve, a sliding groove is formed in the machine tool spindle, and one end of the machine tool pull rod extends to the inside of the sliding groove.

Preferably, the two sides of the position, close to the machine tool spindle, of the flange plate are symmetrically and threadedly provided with two positioning pins, the two sides of the interior of the machine tool spindle are symmetrically provided with two positioning holes, and one ends of the two positioning pins extend into the two positioning holes.

Preferably, the flange plate is provided with a first positioning hole symmetrically on two sides of the position far away from the main shaft of the machine tool, the mandrel is provided with a first positioning pin symmetrically on two sides of the position close to the flange plate, and one end of each of the first positioning pins extends into the corresponding first positioning hole.

Preferably, the inner part of the expansion sleeve is provided with an inclined plane matched with the tool pull rod for use.

Preferably, the thread transition sleeve is connected with the flange plate in a sliding mode.

Preferably, the tool pull rod is of a T-shaped structure.

The utility model discloses a theory of operation and beneficial effect do:

the utility model discloses thereby will the outside of the cover that rises of work piece installation, thereby promote the lathe pull rod and promote the screw thread transition cover, the removal of screw thread transition cover drives frock pull rod and holding ring and moves forward to the inside of the cover that rises, then the lathe pull rod is pulled back and is driven the frock pull rod and drive the cover that rises again, the cover that rises and dabber are the angle fit, so the cover that rises can the parallel expansion, thereby internal stay work piece, the realization is pressed from both sides tightly, be favorable to improving repeated clamping precision, make the clamping speed grow, improved work efficiency when reducing the work degree of difficulty.

Drawings

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

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

FIG. 2 is an enlarged view of FIG. 1 at A;

fig. 3 is a perspective view of the tool pull rod in the structure of the present invention.

In the figure: 1. a machine tool spindle; 2. a flange plate; 3. a machine tool pull rod; 4. a threaded transition sleeve; 5. a mandrel; 6. expanding sleeves; 7. a positioning ring; 8. a tool pull rod; 9. a workpiece; 10. a first positioning pin; 11. a first positioning hole; 12. a second positioning pin; 13. and a second positioning hole.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be obtained by a person skilled in the art without inventive work, are related to the scope of protection of the present invention.

Example 1

As shown in fig. 1, the present embodiment provides an expansion core precision tool, including machine tool spindle 1, flange plate 2 is installed to one side of machine tool spindle 1, inside screw thread transition cover 4 that is equipped with in one side of flange plate 2, the internally mounted of screw thread transition cover 4 has frock pull rod 8, dabber 5 is installed to one side of flange plate 2, one side of frock pull rod 8 extends to the inside of dabber 5 and with dabber 5 sliding connection, the externally mounted of dabber 5 has expansion sleeve 6, the one end of frock pull rod 8 extends to the outside of dabber 5 and installs holding ring 7, the outside of expansion sleeve 6 is provided with work piece 9.

In this embodiment, the workpiece 9 is installed outside the expansion sleeve 6, the machine tool pull rod 3 is pushed to push the thread transition sleeve 4, the thread transition sleeve 4 moves to drive the tool pull rod 8 and the positioning ring 7 to move forwards to the inside of the expansion sleeve 6, then the machine tool pull rod 3 is pulled back to drive the tool pull rod 8 to drive the expansion sleeve 6, the expansion sleeve 6 and the mandrel 5 are in angle fit, so that the expansion sleeve 6 can expand in parallel, the workpiece 9 is supported in the expansion sleeve, and clamping is achieved.

Example 2

As shown in fig. 1, based on the same concept as that of embodiment 1, the present embodiment further provides an expanding core precision tool, wherein a machine tool pull rod 3 is installed on one side of the threaded transition sleeve 4 close to the machine tool spindle 1, a sliding groove is formed in the machine tool spindle 1, and one end of the machine tool pull rod 3 extends into the sliding groove.

The two sides of the position, close to the machine tool spindle 1, of the flange plate 2 are symmetrically provided with two positioning pins 12 through threads, two positioning holes 13 are symmetrically formed in the two sides of the interior of the machine tool spindle 1, and one ends of the two positioning pins 12 extend into the two positioning holes 13.

The flange plate 2 is kept away from the position both sides symmetry of lathe main shaft 1 and has been seted up No. one locating hole 11, and the dabber 5 is close to the position both sides symmetry of flange plate 2 and installs No. one locating pin 10, and the one end of two locating pins 10 all extends to inside two locating holes 11.

The inside of the expansion sleeve 6 is provided with an inclined plane matched with the tool pull rod 8 for use, so that the use is more convenient.

The screw thread transition sleeve 4 is connected with the flange 2 in a sliding way.

The tool pull rod 8 is of a T-shaped structure, so that the device is more stable in use.

In this embodiment, make the use of device more stable through setting up ring flange 2, make the installation more convenient through setting up locating pin 10 and locating hole 11 and No. two locating pins 12 and No. two locating holes 13.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The core precision tooling rises, a serial communication port, including lathe main shaft (1), ring flange (2) are installed to one side of lathe main shaft (1), the inside screw thread transition cover (4) that is equipped with in one side of ring flange (2), the internally mounted of screw thread transition cover (4) has frock pull rod (8), dabber (5) are installed to one side of ring flange (2), one side of frock pull rod (8) extend to the inside of dabber (5) and with dabber (5) sliding connection, the externally mounted of dabber (5) has the cover (6) that rises, the one end of frock pull rod (8) extends to the outside of dabber (5) and installs holding ring (7), the outside of the cover (6) that rises is provided with work piece (9).

2. The core expansion precision tool according to claim 1, wherein a machine tool pull rod (3) is installed on one side, close to the machine tool main shaft (1), of the threaded transition sleeve (4), a sliding groove is formed in the machine tool main shaft (1), and one end of the machine tool pull rod (3) extends into the sliding groove.

3. The core expansion precision tool according to claim 1, wherein two positioning pins (12) are symmetrically and threadedly mounted on two sides of the flange (2) close to the machine tool spindle (1), two positioning holes (13) are symmetrically formed in two sides of the interior of the machine tool spindle (1), and one ends of the two positioning pins (12) extend into the two positioning holes (13).

4. The core expansion precision tool according to claim 1, wherein a first positioning hole (11) is symmetrically formed in two sides of a position, away from a machine tool spindle (1), of the flange plate (2), a first positioning pin (10) is symmetrically installed in two sides of a position, close to the flange plate (2), of the core shaft (5), and one end of each of the first positioning pins (10) extends into the corresponding first positioning hole (11).

5. The core expansion precision tool according to claim 1, characterized in that an inclined surface matched with a tool pull rod (8) is arranged in the expansion sleeve (6).

6. The core expansion precision tool according to claim 1, characterized in that the thread transition sleeve (4) is connected with the flange (2) in a sliding manner.

7. The core expansion precision tool according to claim 1, wherein the tool pull rod (8) is of a T-shaped structure.