CN214212737U

CN214212737U - Positioning and centering device and welding positioning mechanism

Info

Publication number: CN214212737U
Application number: CN202022653618.1U
Authority: CN
Inventors: 李羽飞; 刘嘉鑫; 郑成瑾
Original assignee: Koch Automotive Drive System China Co ltd
Current assignee: Koch Automotive Drive System China Co ltd
Priority date: 2020-11-16
Filing date: 2020-11-16
Publication date: 2021-09-17
Anticipated expiration: 2030-11-16

Abstract

The utility model discloses a positioning and centering device and a welding positioning mechanism, which are used for the center positioning during the welding of a shifting fork, wherein the positioning and centering device comprises a mounting seat and a positioning component; the mount pad has and holds the chamber, the left side of mount pad, the right flank all is equipped with the opening that the intercommunication held the chamber, locating component includes two sliding blocks, two sliding blocks are from about two opening edges to movable mounting in holding the chamber, two sliding blocks have relative expansion end and the drive end that deviates from mutually, two drive end parts at least stretch out in the opening that corresponds in order to form suddenly to establish the portion, two expansion ends have the same activity stroke, two suddenly establish the portion all be used for simultaneously with the inboard arc surface counterbalance of shift fork, with divide the well location shift fork. The outer surfaces of the two driving ends are sleeved with the shifting fork, so that the inner side arc surface of the shifting fork is abutted to the two protruding parts, the two driving ends are pushed to move inwards, automatic centering of clamping of the shifting fork can be achieved, the shifting fork is prevented from deviating from a designed position, clamping precision is guaranteed, and efficiency is improved.

Description

Positioning and centering device and welding positioning mechanism

Technical Field

The utility model relates to a mechanical positioning technical field, in particular to device and welding position mechanism in location branch.

Background

At present, the shifting fork of the automobile gearbox needs to be positioned by the center of the opening of the shifting fork when being welded, and the actual opening size of the shifting fork is fluctuated within the tolerance range, so that a gap is easily reserved between the positioning surface of a general positioning mechanism and at least one side of the shifting fork, the shifting fork deviates from the designed position, the positioning precision of the shifting fork during repeated clamping is reduced, and the product percent of pass is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a device and welding position mechanism in location branch aims at solving present assembling process, the poor problem of shift fork repeated positioning precision.

In order to achieve the above object, the utility model provides a device in location branch, include:

the positioning centering device comprises:

the mounting seat is provided with an accommodating cavity, and openings communicated with the accommodating cavity are formed in the left side surface and the right side surface of the mounting seat; and the number of the first and second groups,

the positioning assembly comprises two sliding blocks, the two sliding blocks are movably arranged in the accommodating cavity from the left side to the right side of the openings, the two sliding blocks are provided with opposite movable ends and driving ends which deviate from the opening, at least parts of the two driving ends extend out of the corresponding openings to form protruding parts, the two movable ends have the same movable stroke, and the two protruding parts are used for simultaneously abutting against the inner circular arc surface of the shifting fork to center the shifting fork.

Optionally, the lower end surface of the mounting seat is provided with a mounting hole communicated with the accommodating cavity;

the positioning and centering device further comprises an auxiliary assembly, wherein the auxiliary assembly comprises:

the base is fixedly arranged in the mounting hole;

the top pin is movably arranged in the mounting hole in the vertical direction and is positioned above the base, and the upper end of the top pin is abutted against the two movable ends; and the number of the first and second groups,

a first spring positioned between the base and the knock pin.

Optionally, two of the movable ends are provided with guide inclined planes inclined from top to bottom toward the driving end, and the two guide inclined planes abut against the side surface of the upper end of the ejector pin.

Optionally, a first positioning groove is formed in the upper end surface of the base, and a second positioning groove is formed in the lower end surface of the ejector pin corresponding to the first positioning groove;

the upper end and the lower end of the first spring are respectively arranged in the second positioning groove and the first positioning groove.

Optionally, a through hole communicated with the accommodating cavity is formed in the upper end face of the mounting seat corresponding to the mounting hole;

the positioning and centering device further comprises a blocking cover, and the blocking cover blocks the through hole.

Optionally, a second spring is arranged between the two movable ends, and two ends of the second spring are respectively fixedly connected with the two movable ends.

Optionally, the positioning and centering device further comprises a limiting assembly, wherein the limiting assembly comprises:

the two limiting holes are respectively arranged on the upper end surfaces of the two sliding blocks; and the number of the first and second groups,

two spacing posts are located the last wall in holding the chamber just corresponds two spacing hole sets up, each the lower extreme of spacing post with correspond the left or right wall in spacing hole offsets for the restriction two the sliding block is along the left and right side's activity stroke.

Optionally, two threaded holes opposite to each other in the left-right direction are formed in the upper end surface of the mounting seat, and the two threaded holes are communicated with the accommodating cavity and are arranged corresponding to the two limiting holes;

two the upper end surface of spacing post all is equipped with the external screw thread, two the upper end of spacing post and two screw hole thread tightening, the lower extreme stretches into to hold the intracavity.

Optionally, the positioning centering device further comprises two fastening bolts, the two fastening bolts are fixed in the two threaded holes in a threaded manner, and the lower ends of the two fastening bolts are abutted against the upper ends of the two limiting columns.

The utility model also provides a welding position mechanism, include as above-mentioned location branch device, the location divides the device to include:

The technical scheme of the utility model among, during the use, the mount pad is settled on welded platform, two the drive end is all the time at least part stretch out in open-ended state, during shift fork welded position, will shift fork cover establishes with two the surface of drive end makes the inboard arc surface and two of shift fork suddenly establish the portion and offset, promote two the drive end inwardly directed movement, thereby drive two the expansion end is close to the motion each other, until two the activity stroke of expansion end is the same, this moment the center of shift fork is adjusted well, can weld, takes off the shift fork that the welding was accomplished after the welding was accomplished again. So set up, can realize the automatic centering of shift fork clamping, prevent the skew design position of shift fork, guarantee the clamping precision, raise the efficiency.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

Fig. 1 is a schematic perspective view of an embodiment of a positioning and centering device provided by the present invention;

fig. 2 is a schematic cross-sectional view taken along a-a in fig. 1.

The reference numbers illustrate:

the objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.

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 efforts belong to the protection scope of the present invention.

It should be noted that, if the present invention relates to a directional indication, the directional indication is only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture, and if the specific posture is changed, the directional indication is changed accordingly.

In addition, if there is a description relating to "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

In view of this, the utility model provides a device in location divides aims at solving present assembling process, and the poor problem of shift fork repeated positioning precision, and the artifical location in the branch before the welding that can be quick, convenient realization shift fork has promoted efficiency. Fig. 1 to fig. 2 are embodiments of a positioning centering device provided by the present invention.

Referring to fig. 1 to 2, the positioning centering device 100 includes a mounting base 1 and a positioning assembly; mount pad 1 has and holds chamber 11, the left and right flank of mount pad 1 all is equipped with the intercommunication hold the opening of chamber 11, locating component includes two sliding blocks 21, two sliding block 21 is from two opening along controlling to movable mounting in hold chamber 11, two sliding block 21 has relative expansion end 211 and the drive end 212 that deviates from mutually, two drive end 212 part at least stretches out in corresponding the opening is in order to form to establish a portion 212a suddenly, two the expansion end 211 has the same activity stroke, two suddenly establish portion 212a all be used for simultaneously with the inboard arc surface of shift fork offsets, with in the branch location the shift fork.

The technical scheme of the utility model among, during the use, mount pad 1 is settled on welded platform, two drive end 212 is all the time at least part stretch out in the open-ended state, during shift fork welded position, will shift fork cover establishes with two the surface of drive end 212 makes the inboard arc surface and two of shift fork establish portion 212a suddenly and offset, promote two drive end 212 inward movement, thereby drive two the expansion end 211 is close to the motion each other, until two the activity stroke of expansion end 211 is the same, this moment the center of shift fork is adjusted well, can weld, takes off the shift fork that the welding was accomplished again after the welding was accomplished. So set up, can realize the automatic centering of shift fork clamping, prevent the skew design position of shift fork, guarantee the clamping precision, raise the efficiency.

It should be noted that, in the present invention, two of the sliders are two identical pieces, two in the installation the sliders are symmetrically installed in the accommodating cavity 11, the protruding portion 212a is the driving end 212 extends out of the opening portion, i.e. the portion matched with the inner side arc surface of the shifting fork.

In order to facilitate automatic centering and positioning and automatic returning of the two sliding blocks, in the embodiment, the lower end surface of the mounting seat 1 is provided with a mounting hole 12 communicated with the accommodating cavity 11; the positioning split-center apparatus 100 further comprises an auxiliary assembly including a base 221, a top pin 222, and a first spring 223: the base 221 is fixedly installed in the installation hole 12; the top pin 222 is movably mounted in the mounting hole 12 in the up-down direction and is located above the base 221, and the upper end of the top pin 222 abuts against the two movable ends 211; the first spring 223 is located between the base 221 and the knock pin 222. Two the relative side of activity end 211 with the upper end of knock pin 222 offsets, when the installation was established to the shift fork cover, two the extrusion of activity end 211 knock pin 222 makes first spring 223 compresses, and after the welding, take off the shift fork after the welding, knock pin 222 is kick-backed under the effect of spring force, promotes two the motion is kept away from each other to activity end 211, drives two drive end 212 gets back to initial position. The structure is simple, the installation is convenient, the elasticity of the first spring 223 is weakened after long-term use, and the first spring can be detached and replaced.

Further, two of the movable ends 211 are provided with guiding inclined surfaces 2111 inclined from top to bottom toward the driving end 212, and the two guiding inclined surfaces 2111 abut against the upper end side surface of the knock pin 222. The inclined plane matching mode is convenient for driving and guiding.

In order to facilitate installation and guide of the first spring 223, in this embodiment, a first positioning groove is disposed on an upper end surface of the base 221, and a second positioning groove is disposed on a lower end surface of the top pin 222 corresponding to the first positioning groove; the upper end and the lower end of the first spring 223 are respectively arranged in the second positioning groove and the first positioning groove. The first and second positioning grooves guide and limit the first spring 223, and prevent the spring from offsetting with the top pin 222 and the base 221 during the compression and rebound process.

In order to facilitate the detachment of the knock pin 222 and the first spring 223, in this embodiment, the upper end surface of the mounting seat 1 is provided with a through hole 13 corresponding to the mounting hole 12 and communicating with the accommodating cavity 11; the positioning split-center device 100 further comprises a blocking cover 23, and the blocking cover 23 blocks the through hole 13. The base 221 will the lower extreme sealing connection of mounting hole 12, through-hole 13 goes on first spring with demolising of knock pin 222, it is swift convenient, set up blanking cover 23 avoids in the use, and dust and welded dregs get into hold in the chamber 11, blanking cover 23 mainly plays dirt-proof effect.

For the convenience of two location and self return in the slider is automatic divides, the utility model discloses an in other embodiments, two be equipped with the second spring between the expansion end 211, the both ends of second spring respectively with two expansion end 211 fixed connection. When the driving end 212 moves, the second spring is directly pressurized, and when the driving end 212 is not pressed by external force, the second spring automatically extends, so that the structure is simple.

Further, in order to prevent the two sliding blocks from being directly pulled out from the opening under the elastic force of the first spring 223, in this embodiment, the positioning centering device 100 further includes a limiting component, and the limiting component includes two limiting holes 241 and two limiting posts 242: the two limiting holes 241 are respectively arranged on the upper end surfaces of the two sliding blocks 21; the two limiting columns 242 are arranged on the upper wall surface of the accommodating cavity 11 and correspond to the two limiting holes 241, and the lower end of each limiting column 242 abuts against the corresponding left or right wall surface of the limiting hole 241 to limit the movement stroke of the two sliding blocks 21 in the left-right direction. In an initial state, the two limiting posts 242 abut against the side walls, close to the two limiting holes 241, so as to prevent the sliding block from falling off, the two limiting holes 241 move along with the movement of the driving end 212, and when the side walls, far away from the two limiting holes 241, abut against the corresponding limiting posts 242, at the moment, the sliding block reaches the maximum stroke, so that the sliding block is prevented from falling off, and meanwhile, the movement stroke of the sliding block in the accommodating cavity 11 is limited.

Specifically, two threaded holes 14 opposite to each other in the left-right direction are formed in the upper end face of the mounting seat 1, and the two threaded holes 14 are both communicated with the accommodating cavity 11 and are arranged corresponding to the two limiting holes 241; two the upper end surface of spacing post 242 all is equipped with the external screw thread, two the upper end and two of spacing post 242 screw thread hole 14 thread tightening, the lower extreme stretch into to hold in the chamber 11. The installation is swift through screw-thread fit's form, and it is convenient to dismantle, the equipment of the whole structure of being convenient for.

Furthermore, in order to prevent the limiting column 242 with screw-fit from loosening after long-term use and affecting the limiting effect, in this embodiment, the positioning centering device 100 further includes two fastening bolts 25, the two fastening bolts 25 are screwed into the two threaded holes 14, and the lower ends of the two fastening bolts 25 abut against the upper ends of the two limiting columns 242. During installation, the limiting column 242 is screwed, the fastening bolt 25 is installed, and the limiting column 242 is fastened through a tool.

The utility model provides a welding position mechanism, divide well device 100 including foretell location, welding position mechanism includes that foretell location divides the whole technical feature of well device 100, consequently, also has the technical effect that above-mentioned whole technical feature brought, and here is no longer repeated.

The above only be the preferred embodiment of the utility model discloses a not consequently restriction the utility model discloses a patent range, all are in the utility model discloses a conceive, utilize the equivalent structure transform of what the content was done in the description and the attached drawing, or direct/indirect application all is included in other relevant technical field the utility model discloses a patent protection within range.

Claims

1. The utility model provides a device is divided to location for the central point when shift fork welding is fixed a position, its characterized in that, the device is divided to location includes:

2. The positioning and centering device as claimed in claim 1, wherein the lower end surface of the mounting seat is provided with a mounting hole communicated with the accommodating cavity;

the base is fixedly arranged in the mounting hole;

a first spring positioned between the base and the knock pin.

3. The centering device according to claim 2, wherein both of said movable ends are provided with guide slopes inclined from top to bottom toward said driving end, both of said guide slopes abutting against upper end side surfaces of said knock pin.

4. The positioning and centering device as claimed in claim 2, wherein the upper end surface of said base is provided with a first positioning groove, and the lower end surface of said top pin is provided with a second positioning groove corresponding to said first positioning groove;

5. The positioning centering device according to claim 2, wherein the upper end surface of the mounting seat is provided with a through hole communicated with the accommodating cavity corresponding to the mounting hole;

6. The positioning centering device according to claim 1, wherein a second spring is disposed between the two movable ends, and both ends of the second spring are fixedly connected to the two movable ends, respectively.

7. The device of claim 1, further comprising a stop assembly, the stop assembly comprising:

8. The positioning and centering device as claimed in claim 7, wherein the upper end surface of the mounting seat is provided with two threaded holes opposite to each other in the left-right direction, and the two threaded holes are both communicated with the accommodating cavity and are arranged corresponding to the two limiting holes;

9. The positioning centering device according to claim 8, further comprising two fastening bolts, wherein the two fastening bolts are fixed in the two threaded holes in a threaded manner, and the lower ends of the two fastening bolts abut against the upper ends of the two limiting columns.

10. A welding positioning mechanism comprising a positioning centering device as claimed in any one of claims 1 to 9.