CN214322573U - Positioning assembly for clamp - Google Patents

Abstract

The utility model discloses a locating component for anchor clamps, include: the positioning device comprises a main body, a positioning groove and a positioning pin, wherein a cavity is formed in the main body, three positioning grooves are uniformly distributed on the inner wall of the circumference of the main body, and a positioning hole is radially formed in the center of the bottom of each positioning groove; the movable block is arranged in the cavity in the main body, three chutes are uniformly distributed on the outer wall of the circumference of the movable block, and the three chutes correspond to the three positioning grooves of the main body one by one; the inner end of the spring pin is inserted into the chute and attached to the inclined plane in the chute, and the outer end of the spring pin is inserted into the positioning hole. And the cover is fixed at the upper port of the main body, corresponding screw holes are simultaneously formed in the center of the cover and the center of the movable block, and the same screw is connected into the screw holes of the cover and the movable block. The utility model discloses can effectively solve the big scheduling problem of work piece hole size difference.

Description

Positioning assembly for clamp

Technical Field

The utility model belongs to the technical field of the manufacturing technique of the lathe technology equipment and specifically relates to a locating component for anchor clamps.

Background

With the rapid development of machining, in order to increase production efficiency and improve machining precision, a special clamp for a single part is widely used. The positioning pin is a common positioning element when the clamp is positioned by an inner hole, and is mainly used for positioning the processed hole, while the difference of the hole diameters of some blanks is larger, so that the clamp is complicated without hole positioning, and the positioning of a workpiece is difficult.

Publication (bulletin) No.: CN110421187A, publication (public notice) day: 2019-11-08 discloses a self-adaptive positioning fixture, which comprises a back-pull chuck, wherein a connecting piece is fixedly connected to the front end face of the back-pull chuck, the front end of the connecting piece is connected with a positioning seat through a spring, three rolling bodies are uniformly distributed on the front end face of the positioning seat along the circumferential direction of the positioning seat, the rolling friction force between a workpiece and the rolling bodies is smaller than the sliding friction force between the workpiece and a push rod, and the diameter of each rolling body is smaller than the distance between two adjacent convex claws on the end face of the workpiece. When the clamping device is used, the back-pull type chuck rotates at a low speed, the push rod pushes the workpiece to move towards the direction of the positioning seat, rolling friction is formed between the end faces of the three convex claws on the workpiece and the rolling body after contacting the rolling body, meanwhile, relative rotation is generated between the three convex claws and the workpiece, the three convex claws on the workpiece can be self-adaptively meshed into the rolling body under the action of the push rod, at the moment, the rolling body is attached to the A reference surface of the workpiece, then the back-pull type chuck acts, and the clamping jaw clamps the workpiece and ensures that the rolling body continues to be closely attached to the A reference surface of the workpiece to finish clamping.

Publication (bulletin) No.: CN102814672A, publication (public notice) day: 2012-12-12 discloses a can body positioning fixture, which comprises a three-jaw chuck and a fixing fixture; the three-jaw chuck comprises three hard jaws; grooves are formed in two side edges of the hard claw; the fixed clamp is arranged on the hard claw, is provided with a lug matched with the hard claw groove and can move on the hard claw; the front end of the fixing clamp is provided with a clamping groove matched with a product; according to the scheme of the utility model, the groove is formed on the hard claw and the lug is arranged on the fixing clamp to match, so that accurate positioning is realized when a product is clamped, the problem of upward tilting and deviation when the fixing clamp is pushed out in the previous production is eliminated, the production error is reduced, and the product percent of pass is improved; the clamping groove designed for the product is also good for assisting in positioning of the product in production and processing, so that the positioning is simple and convenient, and overlarge manual errors of the product can be avoided.

Publication (bulletin) No.: CN104589103A, publication (public notice) day: 2015-05-06 digit control machine tool anchor clamps mainly includes the disc, and center department is equipped with the installation patchhole on the disc, is equipped with the clamp splice on the disc, and the other locating hole that is equipped with of installation patchhole on the disc, the perpendicular locating lever that has inserted in the locating hole, is equipped with the gyro wheel on the locating lever, the locating lever of gyro wheel below on be equipped with the hole, downthehole locating pin that is equipped with. The utility model has the advantages that: whether the eccentric condition appears in the article is detected by inserting locating lever and gyro wheel, and after detecting the completion, will be fixed by the centre gripping thing through the locating pin, then through clamp splice centre gripping article, withdraw the locating lever, accomplish the centre gripping, simple structure, the effect is practical.

Publication (bulletin) No.: CN105215757B, publication (public notice) day: 2018-06-19 provide a lathe fixture and a lathe, and belong to the field of machining equipment, the lathe fixture comprises a fixture shell and a fixture main body, the fixture main body comprises a plurality of cylindrical chucks, the cylindrical chucks are uniformly distributed along the circumferential direction of the fixture shell, and the center line of the cylindrical chucks extends along the axial direction of the fixture shell; a plurality of threaded holes are respectively formed in the position, corresponding to the cylindrical chuck, of the clamp shell, the threaded holes are arranged at intervals along the axial direction of the clamp shell, and bolts are correspondingly screwed in the threaded holes; the clamp main body is provided with a connecting part and a clamping part, the connecting part and the clamping part are coaxially arranged, and the connecting part is inserted into the clamp shell; the connecting portion is movably connected with the mounting portion, the clamp shell is connected with the clamping portion and the clamp shell is connected with the connecting portion through bolts, and the cylindrical chuck moves along the radial direction of the clamp shell by screwing the bolts. The lathe comprises the lathe fixture. The clamp is convenient and quick to clamp and operate and good in clamping effect; the lathe has high processing precision and safe and reliable processing.

Technical scheme and the technical problem that will solve and the beneficial effect who produces of above disclosure technique all with the utility model discloses inequality, perhaps technical field or application scenario are different, are directed to the utility model discloses more technical problem and the beneficial effect that will solve, above open technical document all do not have the technological inspiration.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a locating component for anchor clamps to the above-mentioned defect that prior art exists, can effectively solve the big scheduling problem of work piece hole size difference.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a positioning assembly for a fixture, comprising:

the positioning device comprises a main body, a positioning groove and a positioning pin, wherein a cavity is formed in the main body, three positioning grooves are uniformly distributed on the inner wall of the circumference of the main body, and a positioning hole is radially formed in the center of the bottom of each positioning groove;

the movable block is arranged in the cavity in the main body, three chutes are uniformly distributed on the outer wall of the circumference of the movable block, and the three chutes correspond to the three positioning grooves of the main body one by one;

the inner end of the spring pin is inserted into the chute and attached to the inclined plane in the chute, and the outer end of the spring pin is inserted into the positioning hole.

Further, still include:

and the cover is fixed at the upper port of the main body, corresponding screw holes are simultaneously formed in the center of the cover and the center of the movable block, and the same screw is connected into the screw holes of the cover and the movable block.

Further, still include:

the base, the main part is connected on the base, the base is connected with the lathe.

Further, the spring pin includes:

the inner end of the pin is provided with a large inclined surface end, the inner end surface of the large inclined surface end is an inclined surface, the inclined surface is attached to the inclined surface in the chute, and the outer end of the pin is inserted into the positioning hole;

the spring is sleeved on the pin, namely the inner end of the spring props against the outer end face of the large end of the inclined plane, and the outer end of the spring props against the bottom of the positioning groove.

Compared with the prior art, the utility model following beneficial effect has:

1. the operation is simple and convenient, and the positioning of the hole can be realized by rotating the screw;

2. the workpiece with larger diameter size difference can be well positioned;

3. by adopting the structure of the utility model, the extension amount of the pin and the inclination of the movable block can be adjusted to enlarge the range of the positioning aperture;

4. adopt the above structure of the utility model, base and anchor clamps bottom plate installation size formulate standard, can make into the location aperture series, change the subassembly during use, can realize one set of anchor clamps, the multiple work piece of clamping to greatly reduced anchor clamps drop into and change anchor clamps debug time.

Drawings

Fig. 1 is a cross-sectional view of a positioning assembly for a fixture according to the present invention;

FIG. 2 is a front view of a positioning assembly for a fixture according to the present invention;

fig. 3 is a top view of a positioning assembly for a fixture according to the present invention;

FIG. 4 is a view showing the structure of a main body;

FIG. 5 is a side sectional view of FIG. 4;

FIG. 6 is a view of a loose piece structure;

FIG. 7 is a side sectional view of FIG. 6;

fig. 8 is a structural view of the pin.

In the figure: base 1, main part 2, loose piece 3, round pin 4, spring 5, lid 6, screw 7.

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.

Example 1:

referring to fig. 1 to 8, the present invention provides a technical solution:

a positioning assembly for a fixture, comprising:

the main body 2 is internally provided with a cavity, three positioning grooves are uniformly distributed on the inner wall of the circumference of the main body, and a positioning hole is radially formed in the center of the bottom of each positioning groove;

the movable block 3 is arranged in the cavity in the main body, three chutes are uniformly distributed on the outer wall of the circumference of the movable block, and the three chutes correspond to the three positioning grooves of the main body one by one;

the inner end of the spring pin is inserted into the chute and attached to the opposite sliding type inclined plane in the chute, and the outer end of the spring pin is inserted into the positioning hole.

Further, still include:

and the cover 6 is fixed at the upper port of the main body, corresponding screw holes are simultaneously formed in the center of the cover and the center of the movable block, and the same screw 7 is connected into the screw holes of the cover and the movable block.

Further, still include:

the base 1, the main part is connected on the base, the base is connected with the lathe.

Further, the spring pin includes:

the inner end of the pin is provided with a large inclined surface end, the inner end surface of the large inclined surface end is an inclined surface, the inclined surface is in relative sliding fit with the inclined surface in the chute, and the outer end of the pin is inserted into the positioning hole;

and the spring 5 is sleeved on the pin, namely the inner end of the spring props against the outer end face of the large end of the inclined plane, and the outer end of the spring props against the bottom of the positioning groove.

The main body (see fig. 4) is uniformly provided with three grooves on the circumference, and three holes are uniformly provided in the radial direction of the grooves, and the three holes are the positioning positions of the workpiece holes;

the movable block (please refer to fig. 6) is provided with three chutes uniformly distributed on the circumference, and the three chutes correspond to the three grooves of the main body one by one;

the big end of the pin (see fig. 8) is arranged in the chute of the movable block, and the small end of the pin penetrates through holes uniformly distributed on the circumference of the main body;

the bolt 7 passes through the cover 6 to be installed on the loose piece 3, the loose piece 3 is installed in the main body 2 and can slide up and down, the bevel edge of the large end of the pin 4 is installed in a chute formed in the loose piece 3, the small end of the pin is installed in a hole formed in the circumference of the main body 2 and can slide, the spring 5 is installed between the pin 4 and the main body 2 to ensure that the bevel surface of the large end of the pin is attached to the loose piece 3, and the pin 4, the spring 5 and the cover 6 are installed on the pin body 2; the pin 2 body is arranged on the base 1, and the base is fixed on a clamp bottom plate of a machine tool.

The positioning process of the positioning assembly for the fixture (please refer to the cross-sectional view of the positioning assembly in fig. 1): 1. rotatory tightening screw 7 drives loose piece 3 rebound in the main part, and loose piece 3 drives through the chute of opening at its circumference and is pressed round pin 4 in the chute by spring 5 and stretch out in 2 holes in the main part, because foraminiferous work piece cover the utility model discloses peripherally, so the outer end of round pin just pushes up the pore wall of the hole of work piece gradually to the realization is to the location in work piece hole. 2. The screw 7 is loosened in a rotating mode, the movable block 3 is driven to move downwards in the main body 2, and the pin 4 is enabled to retract inwards under the action of the spring 5, so that the workpiece hole is loosened.

By adopting the structure of the utility model, the positioning of the hole can be realized by rotating the screw, and the range of the positioning aperture can be enlarged by adjusting the elongation of the pin and the inclination of the movable block; the base and the installation size of the clamp bottom plate are standardized, a positioning aperture series can be manufactured, the components are replaced during use, one set of clamp can be realized, and various workpieces can be clamped, so that the clamp investment is greatly reduced, and the clamp debugging time is greatly shortened.

Example 2:

referring to fig. 1 to 8, the present invention provides a technical solution:

a positioning assembly for a fixture, comprising:

the main body 2 is internally provided with a cavity, three positioning grooves are uniformly distributed on the inner wall of the circumference of the main body, and a positioning hole is radially formed in the center of the bottom of each positioning groove;

the movable block 3 is arranged in the cavity in the main body, three chutes are uniformly distributed on the outer wall of the circumference of the movable block, and the three chutes correspond to the three positioning grooves of the main body one by one;

the inner end of the spring pin is inserted into the chute and attached to the inclined plane in the chute, and the outer end of the spring pin is inserted into the positioning hole.

Further, still include:

and the cover 6 is fixed at the upper port of the main body, corresponding screw holes are simultaneously formed in the center of the cover and the center of the movable block, and the same screw 7 is connected into the screw holes of the cover and the movable block.

Although fig. 1 to 8 are used in all the above embodiments, it is obvious to those skilled in the art that separate drawings are not shown as long as the parts or structural features missing in the embodiments are removed from the drawings. As will be clear to the skilled person. Of course, the embodiments with more components are only the preferred embodiments, and the embodiments with fewer components are the basic embodiments, but the basic utility model aims can be achieved, so that all the modified embodiments are within the protection scope of the present invention.

All parts and parts which are not discussed in the present application and the connection mode of all parts and parts in the present application belong to the known technology in the technical field, and are not described again. Such as welding, threaded connections, etc.

In the present application, the term "plurality" means two or more unless expressly defined otherwise. The terms "mounted," "connected," "fixed," and the like are to be construed broadly, and for example, "connected" may be a fixed connection, a removable connection, or an integral connection; "coupled" may be direct or indirect through an intermediary. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the description of the present invention, it should be understood that the terms "upper", "lower", "left", "right", "front", "back", 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 unit indicated must have a specific direction, be constructed and operated in a specific orientation, and therefore, should not be construed as limiting the present invention.

In the description of the present specification, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (4)

1. A positioning assembly for a fixture, comprising:

the positioning device comprises a main body, a positioning groove and a positioning pin, wherein a cavity is formed in the main body, three positioning grooves are uniformly distributed on the inner wall of the circumference of the main body, and a positioning hole is radially formed in the center of the bottom of each positioning groove;

the movable block is arranged in the cavity in the main body, three chutes are uniformly distributed on the outer wall of the circumference of the movable block, and the three chutes correspond to the three positioning grooves of the main body one by one;

the inner end of the spring pin is inserted into the chute and attached to the inclined plane in the chute, and the outer end of the spring pin is inserted into the positioning hole.

2. The positioning assembly of claim 1, further comprising:

and the cover is fixed at the upper port of the main body, corresponding screw holes are simultaneously formed in the center of the cover and the center of the movable block, and the same screw is connected into the screw holes of the cover and the movable block.

3. The positioning assembly for jigs according to claim 1 or 2, further comprising:

the base, the main part is connected on the base, the base is connected with the lathe.

4. The positioning assembly as set forth in claim 1 or 2, wherein said spring pin comprises:

the inner end of the pin is provided with a large inclined surface end, the inner end surface of the large inclined surface end is an inclined surface, the inclined surface is attached to the inclined surface in the chute, and the outer end of the pin is inserted into the positioning hole;

the spring is sleeved on the pin, namely the inner end of the spring props against the outer end face of the large end of the inclined plane, and the outer end of the spring props against the bottom of the positioning groove.

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