CN217194054U

CN217194054U - Self-locking device for planar positioning expansion sleeve

Info

Publication number: CN217194054U
Application number: CN202220780043.6U
Authority: CN
Inventors: 张剑力; 缪习川
Original assignee: Zhejiang Haitao Precision Machinery Co ltd
Current assignee: Zhejiang Haitao Precision Machinery Co ltd
Priority date: 2022-04-06
Filing date: 2022-04-06
Publication date: 2022-08-16
Anticipated expiration: 2032-04-06

Abstract

The utility model belongs to the technical field of positioning and clamping devices, and particularly discloses a plane positioning expansion sleeve self-locking device, which comprises a transmission device, wherein the transmission device comprises a flange plate and a hinged shaft; the flange plate is fixed on a main shaft of the numerical control lathe through a fifth screw, and the tail part of the articulated shaft is articulated with a transmission hydraulic rod of the lathe through threads and can make telescopic motion along with the hydraulic rod of the lathe; the front end of the flange plate is provided with a workpiece plane positioning device, and the inner side of the center of the flange plate is distributed with an expansion sleeve self-locking device; the utility model discloses the structure mainly includes work piece plane positioner, the cover self-lock device that expands and transmission, and these triplex motion power supply can realize initial positioning, press from both sides tightly, compress tightly and functions such as interlocking by the transmission of lathe body hydraulic system for the realization is fixed to the location clamp of irregular work piece, and operating condition is stable, uses in a flexible way, has fine practicality.

Description

Self-locking device for planar positioning expansion sleeve

Technical Field

The utility model relates to a positioning and clamping device technical field specifically is a plane location cover self-lock device that expands.

Background

The processing is taken place for the accurate product and is the important guarantee that the transformation of drive product is upgraded, and the processing mill needs the customization or makes the equipment that adapts to by the processing product to the structural feature of being processed technical parameter requirement according to the product for taking place for, and wherein the bloated cover self-lock device of plane location is indispensable.

The clamping and positioning device of the existing numerical control lathe and the numerical control turning and milling composite machine tool generally adopts a one-way clamping mechanical structure. The clamping structure mode cannot adapt to processing of irregular structural parts, so that the structure of the existing clamping and positioning device still needs to be further improved and innovated to adapt to processed products with structures of different shapes, and therefore, the plane positioning expansion sleeve self-locking device is provided.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a plane location cover self-lock device that expands to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a self-locking device of a planar positioning expansion sleeve comprises a transmission device, wherein the transmission device comprises a flange plate and a hinged shaft; the flange plate is fixed on a main shaft of the numerical control lathe through a fifth screw, and the tail part of the articulated shaft is articulated with a transmission hydraulic rod of the lathe through threads and can make telescopic motion along with the hydraulic rod of the lathe; the front end of the flange plate is provided with a workpiece plane positioning device, and the inner side of the center of the flange plate is provided with an expansion sleeve self-locking device.

Preferably, the workpiece plane positioning device comprises a positioning seat, a first screw, a second screw, a limiting cover and a third screw; the positioning seat is fixed on the flange plate through a first screw, the second screw is arranged on the periphery of the side face of the flange plate, and the limiting cover is fixed on the positioning seat through a third screw.

Preferably, the expansion sleeve self-locking device comprises an expansion sleeve, four equal-height sleeves, a pull rod, a fourth screw and four sixth screws, wherein the expansion sleeve, the four equal-height sleeves, the pull rod, the fourth screw and the four sixth screws are distributed at the front end of the flange plate; the expansion sleeve is fixed on the positioning seat through fourth screws, the pull rod is sleeved on the expansion sleeve, the four sixth screws respectively penetrate through the four equal-height sleeves and then are connected with the articulated shaft, and the articulated shaft drives the pull rod to reciprocate.

Preferably, a central positioning hole for placing the tail part of the workpiece is formed in the limiting cover.

Preferably, the tail part of the workpiece is clamped with the inner part of the expansion sleeve.

Preferably, the expansion sleeve is made of a spring material, 6 springs are uniformly distributed in the center of the expansion sleeve, and the inner side of each spring is in contact with the clamped part of the workpiece.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses a plane positioning expansion sleeve self-locking device, the structure of which mainly comprises a workpiece plane positioning device, an expansion sleeve self-locking device and a transmission device, the power source of the three parts of motion mechanisms is transmitted by a hydraulic system of a machine tool body, the functions of initial positioning, clamping, pressing, interlocking and the like can be realized, and the device can be suitable for clamping and fixing irregular structural components and is flexible to use; the appearance design of the self-locking device of the planar positioning expansion sleeve meets the requirement of centrifugal mechanics, is suitable for aluminum die-casting forming parts, casting forming parts and powder metallurgy parts, is used for realizing positioning, clamping and fixing of products, has stable working state and good practicability, and has outstanding substantive characteristics compared with the prior art.

Drawings

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

fig. 2 is a schematic cross-sectional structure diagram of the present invention;

fig. 3 is a schematic diagram of the explosion structure of the present invention;

fig. 4 is a schematic side view of the present invention.

In the figure: 1. a flange plate; 2. positioning seats; 3. a first screw; 4. a second screw; 5. a limiting cover; 6. a third screw; 7. expanding the sleeve; 8. an equal-height sleeve; 9. a pull rod; 10. a fourth screw; 11. hinging a shaft; 12. a fifth screw; 13. a sixth screw; 14. and (5) a workpiece.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in 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. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Referring to fig. 1-4, the present invention provides a technical solution: a self-locking device of a planar positioning expansion sleeve comprises a transmission device, wherein the transmission device comprises a flange plate 1 and a hinge shaft 11; the flange plate 1 is fixed on a numerical control lathe spindle through a fifth screw 12, six screws 12 are arranged on the fifth screw 12, the specification of the six screws is M12X40, and the tail part of the articulated shaft 11 is articulated with a machine tool transmission hydraulic rod through threads and can make telescopic motion along with the machine tool hydraulic rod; the front end of the flange plate 1 is provided with a workpiece plane positioning device, and the inner side of the center of the flange plate 1 is provided with an expansion sleeve self-locking device.

Further, the workpiece plane positioning device comprises a positioning seat 2, a first screw 3, a second screw 4, a limiting cover 5 and a third screw 6; the positioning seat 2 is fixed on the flange plate 1 through a first screw 3, the second screw 4 is arranged on the periphery of the side face of the flange plate 1 to play a role in adjusting the concentricity between the positioning seat 2 and the main shaft of the machine tool, and the limiting cover 5 is fixed on the positioning seat 2 through a third screw 6; the first screws 3 are four and have the specification of M8X30, the second screws 4 are four and have the specification of M8X16, and the third screws 6 are four and have the specification of M5X 10.

Further, the expansion sleeve self-locking device comprises an expansion sleeve 7, four equal-height sleeves 8, a pull rod 9, a fourth screw 10 and four sixth screws 13, wherein the expansion sleeve 7, the four equal-height sleeves 8, the pull rod 9, the fourth screw 10 and the four sixth screws 13 are distributed at the front end of the flange plate 1; the expansion sleeve 7 is fixed on the positioning seat 2 through a fourth screw 10, the pull rod 9 is sleeved on the expansion sleeve 7, the limiting cover 5 covers the expansion sleeve 7 and the pull rod 9, the four sixth screws 13 respectively penetrate through the four equal-height sleeves 8 and then are connected with a hinge shaft 11, and the hinge shaft 11 drives the pull rod 9 to reciprocate; the specification of the fourth screw 10 is M6X16, and the specification of the sixth screw 13 is M5X 50; a circle of 15-degree oblique angle is formed in the inner wall of the pull rod 9 in a circle and is overlapped with the oblique angle on the expansion sleeve 7, the oblique angles are matched with each other, and the expansion sleeve 7 is in a standing state relative to the pull rod 9.

Furthermore, a central positioning hole for placing the tail part of the workpiece 14 is arranged in the limiting cover 5.

Further, the tail part of the workpiece 14 is clamped with the inner part of the expansion sleeve 7.

Furthermore, the expansion sleeve 7 is made of a spring material, 6 springs are uniformly distributed in the center of the expansion sleeve 7, the inner side of each spring is in contact with the clamped part of the workpiece 14, and a circle of the outer side of the top of each elastic sheet is provided with an oblique angle of 15 degrees.

The working principle is as follows: during specific implementation, the tail of the workpiece 14 is placed into the central positioning hole of the limiting cover 5 until a plane of the tail of the workpiece 14 is superposed with the plane of the top of the limiting cover 5, the 4# positioning seat is placed into the tail of the 14# workpiece, and the plane of the tail of the 14# workpiece is superposed with the plane of the top of the 4# positioning seat to form plane positioning. Meanwhile, a part of the tail of the workpiece 14 is clamped into the expansion sleeve 7 at the same time, the expansion sleeve 7 is made of a spring material, 6 springs are uniformly distributed in the center of the expansion sleeve 7, the inner side of each spring is in contact with the clamped part of the workpiece 14, a circle of the outer side of the top of each elastic sheet has a 15-degree oblique angle, a circle of the inner wall of the pull rod 9 is also provided with a circle of 15-degree oblique angles and is superposed with the oblique angles on the expansion sleeve 7, the oblique angles are matched with each other, and the expansion sleeve 7 is in a standing state relative to the pull rod 9. When the hydraulic switch is turned on, the articulated shaft 11 drives the pull rod 9 to press the expansion sleeve 7 to clamp the workpiece 14, so that the workpiece is firmly locked, and the clamping stability is high; and (3) closing the hydraulic switch, returning the pull rod 9 to the original position, and taking out the workpiece 14 to finish the operation because the expansion sleeve 7 is made of spring steel and is always in a reset state under the action of no external force, and at the moment, the workpiece 14 is in an unclamped state.

The utility model provides a plane positioning expansion sleeve self-locking device, the structure of which mainly comprises a workpiece plane positioning device, an expansion sleeve self-locking device and a transmission device, the power source of the three parts of motion mechanisms is transmitted by a machine tool body hydraulic system, the functions of initial positioning, clamping, pressing, interlocking and the like can be realized, and the device can be suitable for clamping and fixing irregular structural components and is flexible to use; the appearance design of the self-locking device of the planar positioning expansion sleeve meets the requirement of centrifugal mechanics, is suitable for aluminum die-casting molded parts, casting molded parts and powder metallurgy parts, is used for realizing the positioning, clamping and fixing of products, has stable working state and good practicability, and has outstanding substantive characteristics compared with the prior art.

It is worth noting that: the whole device realizes control over the device through the master control button, and the device matched with the control button is common equipment, belongs to the existing mature technology, and is not repeated for the electrical connection relation and the specific circuit structure.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these 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 self-locking device for the planar positioning expansion sleeve is characterized by comprising a transmission device, wherein the transmission device comprises a flange plate (1) and a hinge shaft (11); the flange plate (1) is fixed on a main shaft of the numerical control lathe through a fifth screw (12), and the tail part of the articulated shaft (11) is articulated with a machine tool transmission hydraulic rod through threads and can make telescopic motion along with the machine tool hydraulic rod; the front end of the flange plate (1) is provided with a workpiece plane positioning device, and the inner side of the center of the flange plate (1) is provided with an expansion sleeve self-locking device.

2. The self-locking device of the planar positioning expansion sleeve as claimed in claim 1, wherein: the workpiece plane positioning device comprises a positioning seat (2), a first screw (3), a second screw (4), a limiting cover (5) and a third screw (6); the positioning seat (2) is fixed on the flange plate (1) through a first screw (3), a second screw (4) is arranged on the periphery of the side face of the flange plate (1), and the limiting cover (5) is fixed on the positioning seat (2) through a third screw (6).

3. The self-locking device of the planar positioning expansion sleeve as claimed in claim 1, wherein: the expansion sleeve self-locking device comprises expansion sleeves (7) which are distributed at the front end of the flange plate (1), four equal-height sleeves (8), a pull rod (9), a fourth screw (10) and four sixth screws (13); the expansion sleeve (7) is fixed on the positioning seat (2) through a fourth screw (10), the pull rod (9) is sleeved on the expansion sleeve (7), the four sixth screws (13) penetrate through the four equal-height sleeves (8) respectively and then are connected with the hinge shaft (11), and the hinge shaft (11) drives the pull rod (9) to reciprocate.

4. The self-locking device of the planar positioning expansion sleeve as claimed in claim 2, wherein: and a central positioning hole for placing the tail part of the workpiece (14) is arranged in the limiting cover (5).

5. The self-locking device of the planar positioning expansion sleeve as claimed in claim 4, wherein: the tail part of the workpiece (14) is clamped with the interior of the expansion sleeve (7).

6. The self-locking device of the planar positioning expansion sleeve as claimed in claim 3, wherein: the expansion sleeve (7) is made of a spring material, 6 springs are uniformly distributed in the center of the expansion sleeve (7), and the inner side of each spring is in contact with a clamped part of the workpiece (14).