CN210147032U

CN210147032U - Double-row cylindrical turning clamp for short shaft fork

Info

Publication number: CN210147032U
Application number: CN201920908796.9U
Authority: CN
Inventors: 谭涛; 向前
Original assignee: Wuhan Gongkang Beijing Great Automotive Components Co Ltd
Current assignee: Wuhan Gongkang Beijing Great Automotive Components Co Ltd
Priority date: 2019-06-17
Filing date: 2019-06-17
Publication date: 2020-03-17
Anticipated expiration: 2029-06-17

Abstract

The utility model discloses a double turning excircle anchor clamps of minor axis fork, include: a clamp body; a first push sleeve; the structure of the second push sleeve is completely the same as that of the first push sleeve; the sliding blocks of the second push sleeve correspond to the second through holes one by one; a sleeve ring is coaxially fixed at the rear end of the second push sleeve, the second push sleeve and the first push sleeve are coaxially and transversely sleeved in the cylindrical hollow structure of the clamp main body, and the first push sleeve is positioned in front of the second push sleeve; a pull rod; a spring; wherein, the inclined plane of slider sets up to: the inclined plane of the sliding block is attached to the bottom surface of the groove corresponding to the sliding block, and the sliding block is driven to extend out and retract from the first through hole or the second through hole corresponding to the sliding block along with the forward pushing and the backward pushing of the pull rod. The utility model has the advantages of press from both sides and get stability, guarantee machining precision, but wide application in shaft yoke anchor clamps technical field.

Description

Double-row cylindrical turning clamp for short shaft fork

Technical Field

The utility model relates to a shaft yoke anchor clamps technical field. More specifically, the utility model relates to a double turning of minor axis fork excircle anchor clamps.

Background

The utility model discloses an anchor clamps among application number 2017211249750, the big plane internal stay anchor clamps of three round pin shaft yoke, in actual production process, to some thin and longer shaft yoke of wall, because press from both sides the point of getting only in a plane for press from both sides and get the unstability, lead to the wall of shaft yoke to take place to warp moreover easily, make the shaft yoke scrap.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a press from both sides and get stable, guarantee double turning excircle anchor clamps of minor axis fork of machining precision.

In order to achieve these objects and other advantages in accordance with the purpose of the invention, a double outer turning clamp of a short shaft fork is provided, including:

the clamp comprises a clamp main body, a clamping head and a clamping head, wherein the clamp main body is in a transverse cylindrical shape, a cylindrical hollow structure coaxial with the clamp main body is arranged in the clamp main body, at least three first through holes are uniformly and symmetrically distributed in the clamp main body along the radial direction of the clamp main body, and second through holes are formed in the first through holes along the rear side of the clamp main body in the axis direction; one end of the clamp body is fixed on the machine tool;

the first push sleeve is of a cylindrical structure; the side wall of the first push sleeve is uniformly provided with at least three grooves which are communicated with two bottom surfaces of the first push sleeve in the radial direction, the bottom surfaces of the grooves are obliquely arranged along the length direction of the grooves, and the front ends of the bottom surfaces of the grooves are closer to the axis of the first push sleeve than the rear ends of the bottom surfaces of the grooves; each groove is internally provided with a sliding block which can be sleeved in the corresponding groove in a sliding way and does not fall off; the sliding block is provided with an inclined plane; the sliding blocks are opposite to a first through hole;

the structure of the second push sleeve is completely the same as that of the first push sleeve; the sliding blocks of the second push sleeve correspond to the second through holes one by one; a sleeve ring is coaxially fixed at the rear end of the second push sleeve, the second push sleeve and the first push sleeve are coaxially and transversely sleeved in the cylindrical hollow structure of the clamp main body, and the first push sleeve is positioned in front of the second push sleeve;

the pull rod comprises a first part and a second part which are integrally formed, coaxial and cylindrical, wherein the diameter of the first part of the pull rod is smaller than that of the second part of the pull rod; the pull rod is slidably sleeved in the cylindrical hollow structure of the clamp main body, and the end part of the second part of the pull rod penetrates out of the clamp main body and is fixedly connected with the rotary oil cylinder; the first part of the pull rod penetrates through the second push sleeve and is fixedly connected with the first push sleeve;

one end of the spring is sleeved on the first part of the pull rod, and the other end of the spring is sleeved outside the lantern ring; two ends of the spring are respectively abutted against and fixed with the front end face of the second part of the pull rod and the rear end face of the second push sleeve;

wherein, the inclined plane of slider sets up to: the inclined plane of the sliding block is attached to the bottom surface of the groove corresponding to the sliding block, and the sliding block is driven to extend out and retract from the first through hole or the second through hole corresponding to the sliding block along with the forward pushing and the backward pushing of the pull rod.

Preferably, a clamping jaw is arranged on the outer side face, extending out of the sliding block.

Preferably, the outer surface of the jaw is provided with insections.

Preferably, the middle part of the second part of the pull rod is coaxially sleeved and fixed with a guide ring;

the inner wall of the rear end of the clamp main body is recessed for a circle to form an annular groove;

the sliding pin is parallel to the pull rod and arranged in the annular groove, and the sliding pin penetrates through the guide ring;

wherein, the length of the annular groove in the axial direction of the clamp main body is set as follows: does not interfere with the forward and backward pushing of the pull rod.

Preferably, the number of the first through holes and the number of the second through holes are three, and the number of the sliding blocks of the first pushing sleeve and the number of the sliding blocks of the second pushing sleeve are three.

The utility model discloses at least, include following beneficial effect:

the utility model provides a double external round fixture of turning of minor axis fork pushes away the cover through setting up the second, and the second pushes away the slider of cover and provides another holding surface, cooperates the first slider that pushes away the cover for anchor clamps are thin and longer shaft yoke adaptability is better to the wall, are difficult to arouse the wall deformation of this type of shaft yoke, have guaranteed the precision of construction, and the second pushes away the cover and passes through the compression of spring, extension and at pull rod axis direction round trip movement in addition, and the clamp to the inner wall of shaft yoke gets and releases gentler, so the utility model relates to a press from both sides and get the double external round fixture of turning of minor axis fork stable, the assurance machining precision.

Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.

Drawings

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

fig. 2 is a schematic structural view of the first push sleeve of the present invention.

Description of reference numerals: 1. the clamp comprises a clamp body, 2, a first push sleeve, 3, a groove, 4, a sliding block, 5, the bottom surface of the groove, 6, a second push sleeve, 7, a sleeve ring, 8, a first part of a pull rod, 9, a second part of the pull rod, 10, a spring, 11, a clamping jaw, 12, a guide ring, 13, an annular groove, 14, a sliding pin, 15 and a shaft fork.

Detailed Description

The present invention is further described in detail below with reference to the drawings so that those skilled in the art can implement the invention with reference to the description.

In the description of the present invention, the terms "lateral", "longitudinal", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

As shown in fig. 1-2, the utility model provides a double outer round turning anchor clamps of GI type shaft fork 15, include:

the clamp comprises a clamp body 1, a clamping head and a clamping head, wherein the clamp body 1 is in a transverse cylindrical shape, a cylindrical hollow structure coaxial with the clamp body is arranged in the clamp body 1, at least three first through holes are uniformly and symmetrically distributed in the radial direction of the clamp body 1, and second through holes are formed in the first through holes along the rear side of the clamp body 1 in the axis direction; one end of the clamp body 1 is fixed on a machine tool;

the first push sleeve 2 is of a cylindrical structure; the side wall of the first push sleeve 2 is uniformly provided with at least three grooves 3 which penetrate two bottom surfaces of the first push sleeve in the radial direction, the bottom surfaces 5 of the grooves 3 are obliquely arranged along the length direction of the grooves, and the front ends of the bottom surfaces 5 of the grooves 3 are closer to the axis of the first push sleeve 2 than the rear ends of the bottom surfaces 5 of the grooves 3; each groove 3 is internally provided with a slide block 4 which can be sleeved in the corresponding groove 3 in a sliding way and does not fall off; the slide block 4 is provided with an inclined plane; the sliding blocks 4 are opposite to a first through hole;

the second push sleeve 6 has the same structure as the first push sleeve 2; the sliding blocks 4 of the second push sleeve 6 correspond to the second through holes one by one; a lantern ring 7 is coaxially fixed at the rear end of the second push sleeve 6, the second push sleeve 6 and the first push sleeve 2 are coaxially and transversely sleeved in the cylindrical hollow structure of the clamp main body 1, and the first push sleeve 2 is positioned in front of the second push sleeve 6;

the pull rod comprises a first part 8 and a second part 9 which are integrally formed, coaxial and cylindrical, wherein the first part 8 of the pull rod is smaller than the second part 9 of the pull rod in diameter; the pull rod is slidably sleeved in the cylindrical hollow structure of the clamp main body 1, and the end part of the second part 9 of the pull rod penetrates out of the clamp main body 1 and is fixedly connected with the rotary oil cylinder; the first part 8 of the pull rod penetrates through the second push sleeve 6 and is fixedly connected with the first push sleeve 2;

one end of the spring 10 is sleeved on the first part 8 of the pull rod, and the other end of the spring 10 is sleeved outside the lantern ring 7; two ends of the spring 10 are respectively abutted against and fixed with the front end surface of the second part 9 of the pull rod and the rear end surface of the second push sleeve 6;

wherein, the inclined plane of the slider 4 is set as follows: the inclined plane of the sliding block 4 is attached to the bottom surface of the corresponding groove 3, and the sliding block 4 is driven to extend out and retract from the corresponding first through hole or second through hole along with forward pushing and backward pushing of the pull rod.

In this kind of technical scheme, to fig. 1, the front end refer to the right of paper horizontal direction, the rear end refers to the left side. When the utility model discloses a right-hand member inserts to the inside of shaft yoke 15 and offsets with the inner wall of the vertical direction of the inside of shaft yoke 15, as shown in fig. 1, the gyration hydro-cylinder promotes this moment the pull rod is stretched forward, moves forward with the fixed first cover that pushes away of pull rod for the first slider that pushes away the cover slides forward along the bottom surface of recess, and the first lateral surface that pushes away the slider of cover is outstanding this moment the first through-hole of anchor clamps main part to support the side inner wall of shaft yoke 15, accomplish internal stay and the fixed of shaft yoke 15. The short shaft fork described in this patent is GI type shaft fork.

Meanwhile, the pull rod moves forwards, so that the spring is compressed, the second pushing sleeve is pushed to move forwards, the sliding blocks of the second pushing sleeve also extend out of the corresponding second through holes respectively, the sliding blocks of the first pushing sleeve are matched to clamp the bearing together, the rear clamping points are increased, and the shaft fork 15 is clamped more stably. In addition, the sliding blocks of the second push sleeve do not move along the axis direction directly through the pull rod, but move along the axis direction through the compression and extension of the spring, so that the buffering effect is achieved, the clamping of the sliding blocks of the second push sleeve on the inner wall of the bearing is more moderate, and the thin-walled shaft fork 15 is prevented from deforming.

When the rotary oil cylinder retracts backwards, the sliding block slides backwards along the bottom surface of the groove, the inclined surface of the sliding block always slides in a fit mode with the bottom surface of the groove, the outer side surface of the sliding block retracts into the clamp main body, and the original state is recovered.

In another technical scheme, a clamping jaw 11 is arranged on the outer side face, extending out of the sliding block.

In this kind of technique, under the condition that does not change the shape and the size of slider and recess, can increase through setting up bigger clamping jaw 11 the utility model discloses with the area of contact of the side inner wall of yoke 15, the great yoke 15 of cooperation size.

In another technical scheme, the outer surface of the clamping jaw 11 is provided with insections.

In the technical scheme, the insection is arranged, so that the friction force between the clamping jaw 11 and the inner wall of the shaft fork 15 can be increased, and the shaft fork 15 can be better clamped and fixed.

In another technical scheme, a guide ring 12 is coaxially sleeved and fixed in the middle of the second part of the pull rod;

the inner wall of the rear end of the clamp main body is recessed for a circle to form an annular groove 13;

a sliding pin 14 parallel to the pull rod and arranged in the annular groove 13, wherein the sliding pin 14 is arranged on the guide ring 12 in a penetrating manner;

In this kind of technical scheme, slide pin 14 plays the guide effect, prevents that the pull rod from taking place the axial rotation to influence the machining precision to yoke 15.

In another technical scheme, the number of the first through hole and the second through hole, the number of the sliding blocks of the first pushing sleeve and the number of the sliding blocks of the second pushing sleeve are three.

In this embodiment, three are the preferred amounts for practical production.

While the embodiments of the invention have been described above, it is not intended to be limited to the details shown, or described, but rather to cover all modifications, which would come within the scope of the appended claims, and all changes which come within the meaning and range of equivalency of the art are therefore intended to be embraced therein.

Claims

1. The utility model provides a double outer circular fixture of turning of minor axis fork which characterized in that includes:

2. The double row cylindrical short shaft fork clamp of claim 1, wherein the outer side of the slide block extending out is provided with a clamping jaw.

3. The double row short shaft fork cylindrical clamp of claim 2 wherein the outer surface of said clamping jaw is provided with serrations.

4. The double row outer turning clamp for the short shaft fork as recited in claim 1, wherein a guide ring is coaxially sleeved and fixed in the middle of the second portion of the pull rod;

5. The double row cylindrical turning clamp for short shaft forks of claim 1, wherein there are three first through holes and three second through holes, three sliding blocks of the first push sleeve and three sliding blocks of the second push sleeve.