CN218744424U

CN218744424U - Mounting structure of ultra-precise guide pillar and guide sleeve

Info

Publication number: CN218744424U
Application number: CN202222730167.6U
Authority: CN
Inventors: 李学民; 王军社; 阴博博
Original assignee: Foshan A Fine Mold Parts Co ltd
Current assignee: Foshan A Fine Mold Parts Co ltd
Priority date: 2022-10-14
Filing date: 2022-10-14
Publication date: 2023-03-28
Anticipated expiration: 2032-10-14

Abstract

The utility model discloses a mounting structure of ultra-precision guide pillar guide pin bushing, which comprises a template, be equipped with the mounting hole in the template, install the guide pillar in the mounting hole, the guide pillar includes the installation department, the installation department with mounting hole clearance fit, the next door of mounting hole still is equipped with two at least fixed slots, every all install the clamping ring in the fixed slot, through the clamping ring will the installation department is fixed in the mounting hole. The utility model realizes the installation and fixation of the guide post by utilizing the compression ring, thereby the guide post and the template are not directly fixedly connected, and a screw hole is not needed to be processed in the mounting hole in the template, so the production of the product is more convenient; and the guide pillar and the template do not need to be closely matched, so that the guide pillar can be easily taken out of the template after the press ring is loosened, and the guide pillar is convenient to replace.

Description

Mounting structure of ultra-precise guide pillar and guide sleeve

Technical Field

The utility model relates to a mould field, especially guide pillar and guide pin bushing that mould was used.

Background

The guide pillar is used for in the mould with the guide pin bushing combination use and ensures that the mould carries out the guide element of activity guide mould stroke with accurate location, in order to improve the shaping precision of mould, current precision requirement to the guide pillar is also higher and higher. In order to ensure the use precision of the guide pillar and guide sleeve, in the prior art, the guide pillar and guide sleeve is mainly installed on a template in an interference fit installation mode, the original precision of the guide pillar and guide sleeve after the interference fit is destroyed, and then the guide pillar and guide sleeve is fixed on the template through a bolt. This requires that mounting holes be machined in the form and screw holes be machined in the middle of the mounting holes. In the case of some mold products of smaller dimensions, it is difficult to machine corresponding mounting structures on the mold plates. Moreover, when the guide post and guide sleeve need to be detached, the guide post and guide sleeve are difficult to knock down from the template.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is: the mounting structure of the ultra-precise and ultra-precise guide post and guide sleeve is provided to solve one or more technical problems in the prior art and at least provide a beneficial choice or creation condition.

The utility model provides a solution of its technical problem is: the utility model provides a mounting structure of ultra-precise guide pillar guide pin bushing, includes the template, be equipped with the mounting hole in the template, install the guide pillar in the mounting hole, the guide pillar includes the installation department, the installation department with mounting hole clearance fit, the next door of mounting hole still is equipped with two at least fixed slots, every all install the clamping ring in the fixed slot, through the clamping ring will the installation department is fixed in the mounting hole.

The utility model has the advantages that: the utility model realizes the installation and fixation of the guide post by utilizing the compression ring, thereby the guide post is not directly and fixedly connected with the template, and a screw hole is not needed to be processed in the mounting hole in the template, so the production of products is more convenient; and the guide pillar does not need to be closely matched with the template, so that the guide pillar can be easily taken out of the template after the compression ring is loosened, and the guide pillar is convenient to replace.

As a further improvement of the technical scheme, a step surface is arranged at the upper end of the installation part, the pressing ring comprises a pressing surface, and the pressing surface is abutted to the step surface. Through set up the step face on the installation department, can be so that the butt of clamping ring inseparabler, the installation of guide pillar is more firm reliable.

As a further improvement of the above technical scheme, the clamping ring is wholly circular, be equipped with the breach on the clamping ring, the breach is the arc, just the cambered surface of breach with the outer profile face looks adaptation of installation department. Utilize the breach can make the clamping ring provide the holding power to the outer terminal surface of installation department simultaneously for the installation of guide pillar is more firm reliable.

As a further improvement of the technical scheme, the top surface of the mounting part is flush with the top surface of the pressing ring.

As a further improvement of the technical scheme, the middle of the pressing ring comprises a locking hole, and a locking screw penetrates through the locking hole and then is fixedly connected with the template. The fixing between the compression ring and the template is realized through the locking screw, and the mounting reliability of the compression ring can be improved.

As a further improvement of the technical scheme, the locking hole is a tapered hole, the taper of the locking hole is 15-30 degrees, the locking screw comprises a locking head, and the shape of the locking head is matched with that of the locking hole. Through optimizing the tapering in locking hole, can be so that the clamping ring is more reliable to the fixed of guide pillar.

As a further improvement of the above technical solution, there are two fixing slots, and a central line of the two fixing slots passes through a central line of the mounting hole.

As a further improvement of the above technical solution, the guide post further includes a column body fixed above the mounting portion, and the column body includes a positioning section in a straight column shape and a guide section located at the top of the positioning section.

As a further improvement of the technical scheme, the guide section is hemispherical.

As a further improvement of the technical scheme, the device further comprises a guide sleeve, wherein the guide sleeve comprises a sleeve body, a positioning cavity is arranged in the sleeve body, and the positioning cavity corresponds to the cylinder.

Drawings

In order to more clearly illustrate the technical solution in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below. It is clear that the described figures represent only some embodiments of the invention, not all embodiments, and that a person skilled in the art can also derive other designs and figures from these figures without inventive effort.

Fig. 1 is a perspective view of the mounting structure of the present invention;

fig. 2 is a cross-sectional view of the mounting structure of the present invention;

fig. 3 is an exploded view of the mounting structure of the present invention.

Detailed Description

The conception, specific structure, and technical effects of the present invention will be clearly and completely described in conjunction with the embodiments and the accompanying drawings, so that the objects, features, and effects of the present invention can be fully understood. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and other embodiments obtained by those skilled in the art without inventive labor based on the embodiments of the present invention all belong to the protection scope of the present invention. The preferred embodiment of the present invention is shown in the attached drawings, which are used to supplement the description of the text part of the specification with figures, so that one can intuitively and vividly understand each technical feature and the whole technical solution of the present invention, but they cannot be understood as the limitation of the protection scope of the present invention.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated with respect to the orientation description, such as up, down, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, a plurality of means are one or more, a plurality of means are two or more, and the terms greater than, less than, exceeding, etc. are understood as not including the number, and the terms greater than, less than, within, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, unless there is an explicit limitation, the words such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in combination with the specific contents of the technical solution. Meanwhile, all technical characteristics in the invention can be interactively combined on the premise of not conflicting with each other.

Referring to fig. 1-3, the utility model provides a mounting structure of ultra-precision guide pillar and guide pin bushing, it includes guide pillar 100, guide pin bushing 200, template 300, wherein template 300 be used for the base plate of installation in the mould, it can be the template on the cover half, also can be the template on the movable mould, because guide pillar 100 is similar with guide pin bushing 200 with the mounting structure of template 300, therefore the embodiment uses guide pillar 100's mounting structure as an example earlier.

Referring to fig. 1 to 3, the guide post 100 includes a mounting portion 110, a post 120 located on the mounting portion 110, the post 120 and the mounting portion 110 are integrally formed by turning, the mounting portion 110 includes an upper end surface, the post 120 extends upward from the upper end surface, and center lines of the mounting portion 110 and the main body 120 are coincident with each other. The installation part 110 is integrally cylindrical, the column 120 includes a straight section 121 and a guide section 122, the straight section 121 is a cylinder with equal diameter, the guide section 122 is a hemisphere, and the outer diameter of the guide section 122 is equal to that of the straight section 121.

A ring-shaped step surface 130 is machined below the upper end surface through turning, and the upper end surface and the root of the column body 120 are provided with arc-shaped transition surfaces.

The template 300 is provided with a mounting hole 310 corresponding to the mounting portion 110, the diameter of the mounting hole 310 is slightly larger than the outer diameter of the mounting portion 110, and the depth of the mounting hole 310 is substantially equal to the height of the mounting portion 110. In a traditional guide pillar and guide sleeve mounting structure, the inner diameter of a mounting hole is smaller than the outer diameter of a mounting part, and a screw hole is required to be processed at the bottom of the mounting hole for locking a guide pillar. In this embodiment, the aperture of the mounting hole 310 is larger than the outer diameter of the mounting portion 110, and the mounting portion 110 can easily enter and exit the mounting hole 310, and is in transition fit. In order to fix the guide post 100 on the formwork, the present scheme innovatively utilizes the press ring 400, and utilizes the locking force from top to bottom, so that the guide post 100 is fixed in the formwork.

Specifically, fixing grooves 320 are formed at both sides of the mounting hole 310, the fixing grooves 320 are formed in a circular shape as a whole, and a portion of the fixing grooves 320 overlaps the mounting hole 310. Be equipped with in the fixed slot 320 clamping ring 400, clamping ring 400 includes annular base member 410 of circle one of them side of base member 410 is equipped with breach 420, breach 420 is the arc be equipped with bellied pressing surface 430 on breach 420. The notch 420 and the pressing surface 430 correspond to the outer contour surface of the mounting portion 110 and the step surface 130, respectively.

In addition, a locking hole 440 is formed in the middle of the base body 410, and the locking hole 440 is tapered. A locking screw 500 penetrates through the locking hole 440, and the locking screw 500 is fixedly connected with the template 300. Therefore, a screw hole is formed in the middle of the fixing groove 320, and the screw hole corresponds to the locking screw 500. Since the depth of the fixing groove 320 is generally smaller than the depth of the mounting hole 310, it is more convenient to machine a screw hole in the fixing groove 320.

When the mounting is performed, the mounting portion 110 of the guide post 100 is first placed into the mounting hole 310, then the two pressing rings 400 are respectively placed into the fixing grooves 320 such that the pressing surfaces 430 of the pressing rings 400 face the step surfaces 130, and finally the locking screws 500 are tightened such that the pressing rings 400 are tightly fixed to the mold plate 300. The scheme is that the press ring 400 is locked on the template 300 by using the locking screw 500, and then the guide pillar 100 is indirectly locked on the template 300 by using the press ring 400. The mounting structure is simple and convenient to operate, convenient to process and convenient to disassemble the guide pillar.

Similarly, the above-mentioned mounting structure is also adopted for the mounting structure between the guide sleeve 200 and the template 300.

In order to ensure the matching precision of the guide post and the guide sleeve, the machining precision of the mounting hole of the template 300 is only required to be ensured. Because the pressure of the top surface is provided by the processing of the pressing ring 400, the notch 420 of the pressing ring 400 can abut against the outer contour surface of the mounting part 110 of the guide post 100 at the same time, and the pressing ring 400 facing to each other under the two positions abuts against the guide post 100 at the same time, so that the mounting position of the guide post can be more accurate. And the two compression rings 400 are positioned opposite to each other such that the centerline thereof passes through the center point of the cylinder 120.

In this embodiment, only two compression rings 400 are used, and in some other embodiments, the number of the compression rings 400 may be three or more. With the three press rings 400, the mounting portion 110 can receive more supports, and the positioning accuracy is higher.

Further as a preferred embodiment, the locking force of the guide pillar is fixed completely by the locking force between the locking screw 500 and the form 300, and in order to distribute the locking force reasonably, the taper of the locking hole 440 is designed more reasonably, and the taper is recommended to be selected from 15 ° to 30 °. Preferably, in the present embodiment, the taper is 18 °. Correspondingly, the locking screw 500 comprises a locking head 510 and a threaded shaft 520, wherein the locking head 510 is tapered, and the taper thereof is also 18 °. The locking screw 500 is a countersunk head screw structure, so that after the locking screw 500 is tightened, the upper end surface of the locking screw 500 is lower than the end surface of the template 300, and the normal mold opening and closing of the mold are not affected.

While the preferred embodiments of the present invention have been described, the present invention is not limited to the above-described embodiments, and those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present invention, and such equivalent modifications or substitutions are to be included within the scope of the present invention defined by the claims.

Claims

1. The utility model provides a mounting structure of ultra-precise guide pillar guide pin bushing which characterized in that: the template comprises a template body, be equipped with the mounting hole in the template, install the guide pillar in the mounting hole, the guide pillar includes the installation department, the installation department with mounting hole clearance fit, the next door of mounting hole still is equipped with two at least fixed slots, every all install the clamping ring in the fixed slot, through the clamping ring will the installation department is fixed in the mounting hole.

2. The ultra-precise guide pillar and guide bush mounting structure according to claim 1, wherein: the upper end of installation department is equipped with the step face, the clamping ring is including compressing tightly the face, it is in to compress tightly the face butt on the step face.

3. The ultra-precise guide pillar and guide bush mounting structure according to claim 2, wherein: the clamping ring is integrally in a ring shape, a notch is formed in the clamping ring and is arc-shaped, and the arc surface of the notch is matched with the outer contour surface of the installation part.

4. The ultra-precise guide pillar and guide bush mounting structure according to claim 1, wherein: the top surface of installation department with the top surface of clamping ring flushes.

5. The ultra-precise guide pillar and guide bush mounting structure according to claim 1, wherein: the middle of the pressing ring comprises a locking hole, and a locking screw penetrates through the locking hole and then is fixedly connected with the template.

6. The ultra-precise guide pillar and guide bush mounting structure according to claim 5, wherein: the locking hole is a tapered hole, the taper of the locking hole is 15-30 degrees, the locking screw comprises a locking head, and the shape of the locking head is matched with that of the locking hole.

7. The ultra-precise guide pillar and guide bush mounting structure according to claim 1, wherein: the number of the fixing grooves is two, and a central connecting line of the two fixing grooves penetrates through the central line of the mounting hole.

8. The ultra-precise guide pillar and guide bush mounting structure according to claim 1, wherein: the guide pillar further comprises a column body, the column body is fixed above the mounting portion, and the column body comprises a straight columnar positioning section and a guide section located at the top of the positioning section.

9. The ultra-precise guide pillar and guide bush mounting structure according to claim 8, wherein: the guide section is hemispherical.

10. The ultra-precise guide pillar and guide bush mounting structure according to claim 1, wherein: the guide sleeve comprises a sleeve body, a positioning cavity is arranged in the sleeve body, and the positioning cavity corresponds to the guide pillar.