CN219452652U

CN219452652U - Accurate positioning matching mechanism easy to process

Info

Publication number: CN219452652U
Application number: CN202320680166.7U
Authority: CN
Inventors: 潘旭华
Original assignee: Zhejiang Yawei Precision Machine Tool Co Ltd
Current assignee: Zhejiang Yawei Precision Machine Tool Co Ltd
Priority date: 2023-03-30
Filing date: 2023-03-30
Publication date: 2023-08-01
Anticipated expiration: 2033-03-30

Abstract

The utility model discloses an easy-to-process accurate positioning matching mechanism, which belongs to the technical field of machining and comprises a containing member and a contained member, wherein the containing member and the contained member are in interference fit, a plurality of inclined slots are formed in the contact contour of at least one member, and inclined cantilevers are formed between every two inclined slots; when the two are matched, the cantilever is elastically deformed to enable the containing member to be tightly matched with the contained member. According to the utility model, the inclined grooves are formed on the contact profile of the containing member or the contained member so as to form the cantilever between every two inclined grooves, so that the cantilever can provide elastic deformation for the containing member and the contained member when the containing member and the contained member are in interference fit, the processing precision of the containing member and the contained member is reduced, the working efficiency is improved, and the working flow is simplified.

Description

Accurate positioning matching mechanism easy to process

Technical Field

The utility model belongs to the technical field of machining, and particularly relates to an easy-to-machine accurate positioning matching mechanism.

Background

The structure of accurate matching and precise positioning between the containing member and the contained member is a common structure in machinery, taking the most common positioning pin shaft and pin hole as an example, the sizes of the positioning pin shaft and the pin hole are required to be accurate, and when the positioning pin shaft is too small in size, inaccurate positioning is easy to occur; when the positioning pin shaft is too large in size, plastic deformation can be generated during positioning. After the conventional C-shaped elastic pin is assembled, the fitting pieces are not uniformly attached due to the fact that the deformation of the C-shaped elastic pin is not uniform; the other common taper pin shaft has the advantages of accurate positioning, controllable contact stress, low adaptability and complex processing of the special-shaped piece. For this reason we provide an easy to machine precision positioning mating mechanism.

Disclosure of Invention

The utility model aims to provide an easy-to-process accurate positioning matching mechanism, which is characterized in that through arranging inclined grooves on the contact profile of a containing member or a contained member, a cantilever is formed between every two inclined grooves, so that the cantilever can provide elastic deformation for the containing member and the contained member when the containing member and the contained member are in interference fit, the processing precision of the containing member and the contained member is reduced, the working efficiency is improved, and the working flow is simplified.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

the utility model provides an accurate positioning matching mechanism of workable, includes containing member and by containing member, its characterized in that: the containing piece and the contained piece are in interference fit, a plurality of inclined grooves are formed in the contact contour of at least one piece, and inclined cantilevers are formed between every two inclined grooves; when the two are matched, the cantilever is elastically deformed to enable the containing member to be tightly matched with the contained member.

Preferably, the inclined direction of the chute and the normal line of the contact profile at the chute are arranged in a cross-shaped manner.

Preferably, the chute is evenly distributed over the contact profile.

Preferably, when the contact profile is square, the contact profile includes two pairs of opposite corresponding sides, and the inclined directions of the inclined grooves of the opposite corresponding sides are mirror symmetry.

Preferably, when the contact profile is square, the 4 corner regions of the contact profile are each cut away to eliminate plastic deformation zones.

Compared with the prior art, the utility model has the beneficial effects that: by arranging the inclined grooves on the contact profile of the containing member or the contained member so as to form the cantilever between every two inclined grooves, the cantilever can provide elastic deformation for the containing member and the contained member to replace plastic deformation when in interference fit, the positioning precision is improved, the processing precision of the containing member and the contained member can be reduced, the working efficiency is further improved, and the working flow is simplified.

Drawings

Fig. 1 is a schematic diagram of a mating structure of embodiment 1 of the present utility model.

Fig. 2 is a schematic structural diagram of a connecting sleeve in embodiment 1 of the present utility model.

Fig. 3 is a schematic structural diagram of a connecting sleeve in embodiment 2 of the present utility model.

Fig. 4 is a schematic structural diagram of embodiment 3 of the present utility model.

Fig. 5 is a schematic structural diagram of embodiment 4 of the present utility model.

Fig. 6 is a schematic structural diagram of embodiment 5 of the present utility model.

Fig. 7 is a schematic structural diagram of embodiment 6 of the present utility model.

In the figure: 1. connecting sleeves; 2. a mounting channel; 3. a mounting section; 4. stamping the section; 5. a chute; 6. a cantilever; 7. a male die; 8. an upper die holder; 9. guide sleeve; 10. a lower die holder; 111. sliding the positioning section; 112. and an outer circle positioning section.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

As shown in fig. 1 and 2, the utility model provides an easy-to-process accurate positioning matching mechanism, which comprises a containing member and a contained member, wherein the containing member and the contained member are in interference fit, a plurality of inclined grooves 5 are uniformly formed on the contact profile of at least one member, the inclined grooves 5 can be processed in a linear cutting mode, a laser cutting mode, a water jet cutting mode and the like, the inclined directions of the inclined grooves 5 and the normal line of the contact profile at the inclined grooves 5 are arranged in a cross manner, inclined cantilevers 6 are formed between every two inclined grooves 5, and in the embodiment, the preferable angle between the inclined directions of the inclined grooves 5 and the normal line of the contact profile at the inclined grooves 5 is 30-60 degrees. When the two are mated, the cantilever arms 6 are elastically deformed to enable the containing member to be tightly matched with the contained member. The chute 5 and the cantilever 6 can provide elastic deformation to replace plastic deformation when being matched, so that the positioning accuracy is improved, the dimensional accuracy of the containing member can be reduced, and the processing flow is further simplified.

In the embodiment, the containing member is a connecting sleeve 1 of the stamping head, specifically, a mounting channel 2 is formed in the connecting sleeve 1 along the length direction, and the cross section of the mounting channel 2 in the embodiment is circular; the contained piece is an elongated piece in interference fit with the mounting channel 2, and both ends of the elongated piece extend out of the mounting channel 2 to form a stamping head, wherein one end with a larger outer diameter is a mounting section 3, and the other end with a smaller outer diameter is a stamping section 4. In order to facilitate interference fit of the two, a plurality of inclined grooves 5 are uniformly arranged on the contact contour of the mounting channel 2, and a plurality of cantilevers 6 are distributed among the inclined grooves 5 at intervals.

Example 2

As shown in fig. 3, this embodiment differs from embodiment 1 in that: in this embodiment, the cross section of the installation channel 2 formed on the connecting sleeve 1 is square, that is, the contact contour is square, and the contact contour includes two pairs of opposite corresponding sides, and the inclined directions of the inclined grooves 5 of the opposite corresponding sides are mirror symmetry. Correspondingly, the elongated member, which is in interference fit with the mounting channel 2, is provided with a square cross section. And in order to eliminate the plastic deformation zone, the 4 corner regions of the contact profile are all cut away.

Example 3

As shown in fig. 4, this embodiment differs from embodiment 1 in that: in the embodiment, the containing member is a mounting hole arranged on the male die 7, the contained member is a stamping head in interference fit with the mounting hole, and specifically, the mounting section 3 of the stamping head is in interference fit with the mounting hole; the plurality of inclined grooves 5 are uniformly distributed on the contact contour of the mounting hole, and the plurality of cantilevers 6 are distributed among the plurality of inclined grooves 5 at intervals.

Example 4

As shown in fig. 5, this embodiment differs from embodiment 1 in that: in this embodiment, the containing member is an upper positioning hole provided on the upper die holder 8, the contained member is a guide sleeve 9 in interference fit with the upper positioning hole, the plurality of inclined slots 5 are uniformly distributed on the contact contour of the upper positioning hole, and the plurality of cantilevers 6 are distributed among the plurality of inclined slots 5 at intervals.

Example 5

As shown in fig. 6, this embodiment differs from embodiment 1 in that: in this embodiment, the containing member is an upper positioning hole provided on the upper die holder 8, the contained member is a guide sleeve 9 in interference fit with the upper positioning hole, and the chute 5 is arranged on the contained member, i.e. a plurality of chute 5 are uniformly distributed on the periphery of the guide sleeve 9, and a plurality of cantilevers 6 are distributed among a plurality of chute 5 at intervals. This arrangement enables the guide sleeve 9 to be uniformly attached to the upper locating hole.

Example 6

As shown in fig. 7, this embodiment differs from embodiment 1 in that: in this embodiment, the containing member is a lower positioning hole provided on the lower die holder 10, and the contained member is a guide post in interference fit with the lower positioning hole, specifically, the guide post includes a sliding positioning section 111 and an outer positioning section 112, where the outer positioning section 112 is in interference fit with the lower positioning hole. The plurality of inclined grooves 5 are uniformly distributed on the contact contour of the lower positioning hole, and the plurality of cantilevers 6 are distributed among the plurality of inclined grooves 5 at intervals.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides an accurate positioning matching mechanism of workable, includes containing member and by containing member, its characterized in that: the containing piece and the contained piece are in interference fit, a plurality of inclined grooves (5) are formed in the contact contour of at least one piece, and inclined cantilevers (6) are formed between every two inclined grooves (5); when the two are matched, the cantilever (6) generates elastic deformation to enable the containing piece to be matched with the contained piece tightly.

2. The easy-to-process precision positioning engagement mechanism of claim 1, wherein: the inclined direction of the chute (5) and the normal line of the contact contour at the chute (5) are arranged in a cross shape.

3. The easy-to-process precision positioning engagement mechanism of claim 1, wherein: the chute (5) is uniformly distributed on the contact profile.

4. The easy-to-process precision positioning engagement mechanism of claim 1, wherein: when the contact profile is square, the contact profile comprises two pairs of opposite corresponding sides, and the inclined directions of the inclined grooves (5) of the opposite corresponding sides are mirror symmetry.

5. The easy-to-process precision positioning engagement mechanism of claim 4, wherein: when the contact profile is square, the 4 corner regions of the contact profile are each cut away to eliminate the plastic deformation zone.