CN219075020U

CN219075020U - Hydraulic sprocket positioning structure

Info

Publication number: CN219075020U
Application number: CN202223522506.8U
Authority: CN
Inventors: 吕云良; 潘成武; 陈传海
Original assignee: Fangguan Changzhou Numerical Control Technology Co ltd
Current assignee: Fangguan Changzhou Numerical Control Technology Co ltd
Priority date: 2022-12-29
Filing date: 2022-12-29
Publication date: 2023-05-26
Anticipated expiration: 2032-12-29

Abstract

The utility model provides a hydraulic chain wheel positioning structure, which comprises a positioning block, wherein a mounting screw hole is penetrated in the middle of the left side and the right side of the positioning block, the positioning block is mounted at the right end of a telescopic rod of an oil cylinder through the mounting screw hole, the oil cylinder is mounted on a chain tool magazine body through an oil cylinder fixing seat, the telescopic end faces to the right, two positioning teeth are symmetrically arranged on the right side surface of the positioning block up and down, the two positioning teeth are positioned at the front half part of the right side surface of the positioning block and are integrally formed, an engagement angle is formed between the two positioning teeth, the positioning block is engaged with the external teeth of a chain wheel through the engagement angle between the two positioning teeth, and the positioning block is engaged with the external teeth of the chain wheel through the extension of the oil cylinder to position the chain wheel; according to the chain magazine tool changing device, the positioning of the chain wheel is realized in a mode that the oil cylinder drives the positioning block to be meshed with the external teeth of the chain wheel, so that the precise positioning of the tool changing sleeve at the far position of the chain magazine tool body is realized.

Description

Hydraulic sprocket positioning structure

Technical Field

The utility model belongs to the technical field of chain type tool magazines, and particularly relates to a hydraulic chain wheel positioning structure for positioning chain type tool magazines.

Background

The chain type tool magazine is a tool magazine form in the numerical control machine tool, and compared with the disc type tool magazine and the bamboo hat type tool magazine, the chain type tool magazine has the characteristic of large tool capacity, but the chain type structure of the traditional chain type tool magazine: the cutter is equivalent to being placed on the chain, and the chain needs the back and forth movement, and the sprocket realizes the location through the walking of chain, does not have the rigid support that can realize all chains, to chain formula tool magazine, the chain is the bearing system again, leads to having appeared the positional stability poor to the sprocket, has decided that chain formula tool magazine has obvious defect: poor mechanical rigidity and large transmission clearance, thereby causing poor positioning precision of the tool magazine; and because the chain assembly of the chain type tool magazine has tolerance, when the number of tools reaches 40T or more, the accumulated tolerance can become large, so that the positioning of the tool sleeve at a far position is inaccurate, and a large error occurs in tool changing.

Patent application number CN202021815506.5, the contents of which are: the utility model discloses a chain type tool magazine, which comprises a plurality of tool handle assemblies, a guide rail plate, a chain wheel, a chain and a driving device. In the cutter handle assembly, the cam follower bearing and the attachment plate switching block are both arranged on the mounting block, and the attachment plate switching block and the mounting block can slide relatively along the vertical direction; the auxiliary plate on the chain is connected with the auxiliary plate adapter block, and the chain is sleeved on the driving sprocket and the driven sprocket which are horizontally arranged; the cam follower bearing is arranged between the first guide rail plate and the second guide rail plate, the axis of the cam follower bearing is parallel to the first guide rail plate and the second guide rail plate, and the diameter of the cam follower bearing is matched with the distance between the first guide rail plate and the second guide rail plate; the driving device is used for driving the driving chain wheel to rotate. According to the chain type tool magazine, the cam driven bearing is arranged below the mounting block, the axis of the cam driven bearing is parallel to the mounting block, the chain is prevented from jumping up and down during movement, and the transmission stability is improved.

The above patent can avoid the chain jumping up and down during the movement, and improve the transmission stability, but the chain needs to be driven to move and the chain wheel needs to be supported and positioned, so that higher positioning precision is difficult to achieve, especially for the cutter sleeve at a far position, along with the superposition of the transmission of the chain and the number of the cutter sleeves, the accumulated tolerance is increased, the positioning error is increased, the positioning precision of the cutter sleeve at the far position is greatly reduced, and the cutter changing precision is influenced.

Disclosure of Invention

The utility model aims to solve the technical problems in the background technology, and provides a hydraulic sprocket positioning structure.

The technical scheme adopted for solving the technical problems is as follows:

the utility model provides a hydraulic sprocket location structure, includes the locating piece, the locating piece left and right sides intermediate department runs through there is the installation screw, the locating piece passes through the telescopic link right-hand member of installation screw at the hydro-cylinder, the hydro-cylinder passes through the hydro-cylinder fixing base to be installed on chain tool magazine body, and the telescopic link is towards right, the symmetry is provided with two positioning teeth about the locating piece right flank, two the positioning tooth is located the first half integrated into one piece of locating piece right flank, two form the meshing angle between the positioning tooth, the locating piece is through the meshing location of the external tooth meshing of meshing angle between two positioning teeth and sprocket, the locating piece is fixed a position at sprocket external tooth side face through the hydro-cylinder extension meshing sprocket.

Preferably, a guide groove is formed in the middle of the front side surface of the positioning block in a left-right penetrating mode, a guide block is fixedly arranged at the position, located at the guide groove, of the chain tool magazine body in a threaded mode, and when the positioning block stretches and stretches through the oil cylinder, the guide groove stretches and slides along the guide block to guide.

Preferably, the right ends of the two positioning teeth are provided with round chamfer faces, and the two positioning teeth and the meshing angle are matched with the external teeth of the chain wheel.

Preferably, the two side surfaces of the engagement angle are hardened surfaces.

Preferably, the right side surface of the positioning block is coplanar with the right end surface of the oil cylinder telescopic rod.

Compared with the prior art, the utility model has the beneficial effects that: according to the chain tool magazine, the oil cylinder is directly arranged on the chain tool magazine body to drive the telescopic positioning block, the locking and positioning with the chain wheel are rapidly and accurately realized in a manner of meshing the meshing angle between the two positioning teeth on the positioning block and the outer tooth of the chain wheel, so that the position precision of the tool sleeve at the far position on the chain is ensured, the influence of error increase caused by tolerance stack of the chain is avoided, the tool sleeve at the far position on the chain can also realize more accurate positioning through the oil cylinder and the positioning block, the tool changing precision is improved, the positioning block is easy to process, the processing precision is easy to ensure, the structure is simple and reliable, the precision is controllable, the later maintenance and replacement cost is low, the supporting performance of the chain on the chain tool magazine is greatly reduced, the normal conveying function of the chain is ensured, and the chain is worth popularizing.

Drawings

The utility model will be further described with reference to the drawings and examples.

FIG. 1 is a schematic diagram of an embodiment of the present utility model;

FIG. 2 is a perspective view of the front side of an embodiment of the present utility model;

FIG. 3 is a front side view of an embodiment of the present utility model;

FIG. 4 is a schematic view illustrating the installation of an embodiment of the present utility model on a chain magazine body;

FIG. 5 is a schematic illustration of an embodiment of the present utility model with sprocket positioning;

the embodiment of the utility model mainly comprises the following element symbols:

the chain tool magazine comprises a positioning block-1, a mounting screw hole-11, positioning teeth-12, an engagement angle-13, a guide groove-14, a round chamfer surface-15, an oil cylinder-2, a telescopic rod-21, an oil cylinder fixing seat-22, a guide block-3, a chain wheel-4 and a chain tool magazine body-5.

Detailed Description

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

As shown in fig. 1, fig. 2 and fig. 4, a hydraulic sprocket positioning structure comprises a positioning block 1, a mounting screw hole 11 is penetrated in the middle of the left side and the right side of the positioning block 1, the positioning block 1 is mounted at the right end of a telescopic rod 21 of an oil cylinder 2 through the mounting screw hole 11, the oil cylinder 2 is mounted on a chain magazine body 5 through an oil cylinder fixing seat 22, the telescopic end faces to the right, two positioning teeth 12 are symmetrically arranged on the right side surface of the positioning block 1 up and down, the two positioning teeth 12 are positioned on the front half part of the right side of the positioning block 1 and are integrally formed, an engagement angle 13 is formed between the two positioning teeth 12, the positioning block 1 is engaged with the outer teeth of a sprocket 4 through the engagement angle 13 between the two positioning teeth 12, and the positioning block 1 is engaged with the outer teeth of the sprocket 4 through extension of the oil cylinder 2 to position the sprocket 4.

According to the utility model, the oil cylinder 2 is directly arranged on the chain magazine body 5 to drive the telescopic positioning block 1, the locking and positioning with the chain wheel 4 are rapidly and accurately realized in a manner of meshing the meshing angle 13 between the two positioning teeth 12 on the positioning block 1 and the external teeth of the chain wheel 4, so that the position precision of the cutter sleeve at the cutter changing position is ensured, the influence of error increase caused by tolerance stack of the chain on the cutter sleeve at the cutter at the far position is avoided, the cutter sleeve at the far position on the chain can also realize more accurate positioning through the oil cylinder 2 and the positioning block 1, the cutter changing precision is improved, the positioning block 1 is easy to process, the processing precision is easy to ensure, the structure is simple and reliable, the precision is controllable, the later maintenance and replacement cost is low, the supportability of the chain on the chain magazine is greatly reduced, the normal conveying function of the chain is ensured, and the popularization is worth.

As shown in fig. 5, a guiding groove 14 is formed in the middle position of the front side surface of the positioning block 1 in a left-right penetrating manner, a guiding block 3 is fixedly arranged at the position of the guiding groove 14 in a threaded manner on the chain tool magazine body 5, when the positioning block 1 stretches and stretches under the driving of the oil cylinder 2, the guiding groove 14 stretches and slides along the guiding block 3 to guide, and the positioning and sliding precision and stability of the positioning block 1 are improved due to the matching of the guiding groove 14 and the guiding block 3.

As shown in fig. 3, the right ends of the two positioning teeth 12 are provided with round chamfer faces 15, the two positioning teeth 12 and the meshing angle 13 are matched with the external teeth of the sprocket 4, so that the problem of tooth cutting of the two positioning teeth 12 and the external teeth of the sprocket 4 is avoided, and the service lives of the sprocket 4 and the positioning teeth 12 are prolonged.

The two sides of the engagement angle 13 are set as hardening surfaces, and the hardening mode of high-frequency heat treatment is adopted in the embodiment.

The right side face of the positioning block 1 is coplanar with the right end face of the telescopic rod 21 of the oil cylinder 2, so that the telescopic rod 21 of the oil cylinder 2 is prevented from protruding to interfere with the external teeth of the chain wheel 4.

With the above-described preferred embodiments according to the present utility model as an illustration, the above-described descriptions can be used by persons skilled in the relevant art to make various changes and modifications without departing from the scope of the technical idea of the present utility model. The technical scope of the present utility model is not limited to the description, but must be determined according to the scope of claims.

Claims

1. A hydraulic sprocket location structure, its characterized in that: the chain cutter magazine comprises a positioning block, wherein a mounting screw hole is formed in the middle of the left side and the right side of the positioning block in a penetrating manner, the positioning block is mounted at the right end of a telescopic rod of an oil cylinder through the mounting screw hole, the oil cylinder is mounted on a chain cutter magazine body through an oil cylinder fixing seat, the telescopic end faces to the right, two positioning teeth are symmetrically arranged on the right side face of the positioning block up and down, the two positioning teeth are positioned on the front half part of the right side face of the positioning block in an integrated manner, an engagement angle is formed between the two positioning teeth, the positioning block is engaged with the outer teeth of a chain wheel through the engagement angle between the two positioning teeth in a meshed manner, and the positioning block is positioned on the outer tooth side of the chain wheel through the extension engagement of the oil cylinder.

2. The hydraulic sprocket positioning structure according to claim 1, wherein: the chain tool magazine is characterized in that a guide groove is formed in the middle of the front side surface of the positioning block in a penetrating mode in the left-right direction, a guide block is fixedly arranged at the position of the guide groove in a threaded mode, and when the positioning block stretches and contracts through the driving of the oil cylinder, the guide groove stretches and slides along the guide block to guide.

3. The hydraulic sprocket positioning structure according to claim 2, wherein: the right ends of the two positioning teeth are provided with round chamfer faces, and the two positioning teeth and the meshing angle are matched with the outer teeth of the chain wheel.

4. A hydraulic sprocket positioning according to claim 3, wherein: the two side surfaces of the engagement angle are set as hardening treatment surfaces.

5. The hydraulic sprocket positioning structure according to claim 4, wherein: and the right side surface of the positioning block is coplanar with the right end surface of the oil cylinder telescopic rod.