CN217099046U

CN217099046U - Guide pillar and guide sleeve mounting structure

Info

Publication number: CN217099046U
Application number: CN202220373424.2U
Authority: CN
Inventors: 李学民; 王军社
Original assignee: Foshan A Fine Mold Parts Co ltd
Current assignee: Foshan A Fine Mold Parts Co ltd
Priority date: 2022-02-22
Filing date: 2022-02-22
Publication date: 2022-08-02
Anticipated expiration: 2032-02-22

Abstract

The utility model discloses a guide pillar and guide pin bushing mounting structure, including guide pillar, guide pin bushing, cope match-plate pattern, lower bolster, the guide pillar is installed in the lower bolster, the guide pin bushing is installed in the cope match-plate pattern, the lower bolster includes conical mounting hole, the guide pillar is including being conical foundation portion, the foundation portion with the mounting hole coaxial line sets up, be equipped with outstanding reference column in the foundation portion, the guide pin bushing includes the cavity, the cavity with the reference column cooperation is connected. The utility model adopts the conical surfaces to match and install the guide post and the guide sleeve with the template, and achieves better concentricity assembling effect by using the matching between the conical surfaces, thereby improving the installation precision of the guide post and the guide sleeve and reducing the first-level installation error; in addition, the conical surfaces are used for matching installation, so that the bearing strength can be increased, the guide pillar and guide sleeve can be installed more conveniently, the guide pillar and guide sleeve can be directly replaced on a molding surface, and the positioning accuracy of the installation hole is not damaged by repeated installation.

Description

Guide pillar and guide sleeve mounting structure

Technical Field

The utility model relates to an accurate mould field, especially guide pillar and guide pin bushing mounting structure who uses on the mould.

Background

When the die is separated and combined, the guiding or positioning is generally realized through the guide pillar and the guide sleeve which are respectively arranged on the upper die surface and the lower die surface, and the die assembly precision of the die is greatly influenced by the precision of the guide pillar and the guide sleeve. The existing guide post and guide sleeve is basically mounted on a die after production, and the guide post and guide sleeve achieve good matching precision during production, but when the guide post and guide sleeve are respectively mounted on an upper die and a lower die of the die, the mounting precision is low, so that the precision of the upper die and the lower die during die assembly is influenced. In order to improve the machining precision of the mold, in the prior art, the mounting hole on the template of the mold is often required to be precisely bored. This can result in higher processing costs in order to achieve the desired processing accuracy. Meanwhile, the guide post and guide sleeve are easy to wear after being used, and the guide post and guide sleeve are precisely matched with the template, so that the guide post and guide sleeve are inconvenient to replace.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is: it is an object to provide a guide post and guide sleeve mounting structure to solve one or more of the problems of the prior art and to provide at least one advantageous alternative or creation.

The utility model provides a solution of its technical problem is: the utility model provides a guide pillar and guide pin bushing mounting structure, includes guide pillar, guide pin bushing, cope match-plate pattern, lower bolster, the guide pillar is installed in the lower bolster, the guide pin bushing is installed in the cope match-plate pattern, the lower bolster includes conical mounting hole, the guide pillar is including being conical basal portion, basal portion with the mounting hole coaxial line sets up, be equipped with outstanding reference column on the basal portion, the guide pin bushing includes the cavity, the cavity with the reference column cooperation is connected.

The utility model has the advantages that: the utility model adopts the conical surfaces to match and install the guide post and the guide sleeve with the template, and achieves better concentricity assembling effect by using the matching between the conical surfaces, thereby improving the installation precision of the guide post and the guide sleeve and reducing the first-level installation error; in addition, the conical surfaces are used for matching installation, so that the bearing strength can be increased, the friction between the guide pillar and guide sleeve and the template is reduced, the guide pillar and guide sleeve is more convenient to install, the guide pillar and guide sleeve can be directly replaced on a molding surface, and the positioning accuracy of the installation hole is not damaged by repeated installation.

As a further improvement of the above technical solution, the taper of the mounting hole is the same as the taper of the base portion, and the taper of the mounting hole is 3 ° to 6 °. By using small taper, the strength can be ensured and the processing is convenient.

As a further improvement of the above technical solution, a guide ring is further disposed at the bottom of the base portion, and an outer diameter of the guide ring is smaller than a minimum outer diameter of the base portion. The guide ring structure of the circle is added on the bottom surface of the base part, so that the guide sleeve of the guide post is more convenient to mount.

As a further improvement of the above technical solution, the positioning column is a straight cylinder, and the cavity is a straight cylindrical cavity. The positioning column adopts a straight structure, so that the transverse positioning precision of the guide column and the guide sleeve and the die parting surface are not influenced even if the height of the mounting surface of the guide column and the guide sleeve is changed, and the mounting technical requirement is reduced.

As a further improvement of the above technical solution, the positioning post is a tapered cylinder, and the cavity is a tapered cavity. The conicity of the positioning column is 1:20 or 1:50 or 1:100, and the conicity of the base part is also 1:20 or 1:50 or 1: 100. When the conical cylinder that the reference column adopted, the mounting face of guide pillar guide pin bushing can influence the die joint of cope match-plate pattern and lower bolster, for the convenience of adjustment, the tapering of reference column and basic unit all adopt the tapering of proportion type, can conveniently carry out the on-the-spot debugging processing like this in the installation, guarantee the precision of installation.

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 the structure schematic diagram of the guide pillar and guide sleeve mounting structure of the present invention.

Detailed Description

The conception, the specific structure, and the technical effects produced by the present invention will be clearly and completely described below in conjunction with the embodiments and the accompanying drawings to fully understand the objects, the features, and the effects of the present invention. 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.

The first embodiment is as follows: referring to fig. 1, a guide pillar and guide sleeve mounting structure includes a guide pillar 100, a guide sleeve 200, an upper mold plate 300, and a lower mold plate 400, where the guide pillar 100 includes a conical base portion 110, a raised positioning column 120 is disposed on the base portion 110, the positioning column 120 is a straight cylinder, the positioning column 120 and the base portion 110 are integrally formed, the guide pillar 100 further includes a first through hole 130 penetrating through the positioning column 120 and the base portion 110, and the first through hole 130 is a countersunk screw hole; the base part 110 is a tapered cylinder with a large upper part and a small lower part, an included angle between a generatrix of the base part 110 and the vertical direction is 5 degrees, a circle of guide ring 140 is arranged at the lowest part of the base part 110, and the outer diameter of the guide ring 140 is smaller than the minimum outer diameter of the base part 110. The guide sleeve 200 also includes a mounting base 210, and the shape of the mounting base 210 substantially conforms to the shape of the base 110. The installation base 210 is provided with a cavity 220 capable of accommodating the positioning column 120, and the inner diameter of the cavity 220 is matched with the outer diameter of the positioning column 120.

The lower template 400 includes a mounting hole 410 corresponding to the base 110, the mounting hole 410 is a tapered hole with a large top and a small bottom, and the taper of the mounting hole 410 is also 5 °. Since the mounting hole 410 is a tapered hole, it is difficult to accurately machine a tapered hole with a required precision by using a conventional straight body tool during turning, and therefore, a special tapered turning tool needs to be used, and the outer contour of the tapered turning tool corresponds to the outer contour of the base portion 110, so that the required mounting hole 410 can be quickly and accurately machined when the lower template 400 is machined. In addition, since it is required to ensure that the guide post 100 can be accurately mounted on the lower template 400, a special inspection jig is required to inspect the machining accuracy of the mounting hole 410.

After the processing is finished, the guide post 100 can be precisely matched and connected with the lower template 400. Similarly, the guide sleeve 200 and the upper mold plate 300 are also in a conical fit manner. Compare in the cooperation installation of traditional straight body mounting hole and straight body base portion, guide pillar guide pin bushing is behind the mounting structure of this scheme of adoption for the simple installation is swift, can directly change guide pillar guide pin bushing at the profiled surface, need not to dismantle the mould. Because the cooperation installation with original straight body guide pillar generally adopts interference fit's mode installation, the connection between guide pillar and the lower bolster is comparatively inseparable, dismantles inconveniently, but adopts this structure after, guide pillar and lower bolster can adopt transition fit's mode, and the guide pillar can be taken off from the lower bolster more easily. Meanwhile, longitudinal high-low displacement installation is changed between the guide pillar and the template, the requirement on the boring accuracy of the installation hole is reduced, the processing cost is saved, and the changed installation surface height does not influence the transverse positioning accuracy and reduces the installation technical requirement. In addition, the repeated installation of the structure cannot damage the positioning precision of the installation hole, the overlap ratio of the installation conical surface between the guide pillar and the template is large, the bearing strength is high, and the larger the taper is, the larger the bearing capacity is; most importantly, the accurate positioning of the guide post and the concentricity of the mounting hole are completely overlapped, and the first-level mounting error is reduced.

In the second embodiment, the outline of the guide post 100 and the outline of the guide sleeve 200 are substantially the same as those of the first embodiment, and the most difference is that in the present embodiment, the positioning post 120 is a tapered cylinder, and the cavity 220 is also a tapered cavity. The taper of the positioning post 120 is 1:20, 1:50 or 1:100, and the taper of the base portion 110 is also 1:20, 1:50 or 1: 100. Compared with the first embodiment, the positioning column 120 is a conical cylinder, so that the matching precision between the guide columns and the guide sleeves is higher, and the positioning column can be used for a die with higher precision requirement. However, when the positioning post 120 is a tapered cylinder, the mounting surface of the guide post and guide sleeve may affect the parting surface of the upper and lower templates, i.e. when the guide post and guide sleeve are closed, the mating surface may be inconsistent with the contact surface of the upper and lower templates, thereby affecting the normal practicability of the mold. In order to adjust the fitting surface, the tapers of the positioning column 120 and the base portion 110 are proportional tapers, so that on-site debugging and processing can be performed conveniently during installation, and installation accuracy is guaranteed. For example, when the taper of the base portion 110 is 1:50, after the guide post and guide sleeve are mounted on the die plate, when the die is clamped, the difference between the mating surfaces of the two is found to be 0.01mm, that is, the aperture of the mounting hole 410 can be adjusted to be 0.5mm enlarged, so that the base portion 110 can be lowered by 0.01mm when the die is mounted, and the die can be matched more accurately when the die is clamped.

While the preferred embodiments of the present invention have been described in detail, it will be understood by those skilled in the art that the invention is not limited to the details of the embodiments shown, but is capable of various modifications and substitutions without departing from the spirit of the invention.

Claims

1. The utility model provides a guide pillar and guide pin bushing mounting structure, includes guide pillar, guide pin bushing, cope match-plate pattern, lower bolster, the guide pillar is installed in the lower bolster, the guide pin bushing is installed in the cope match-plate pattern, its characterized in that: the lower template comprises a conical mounting hole, the guide pillar comprises a conical base part, the base part and the mounting hole are coaxially arranged, a protruding positioning column is arranged on the base part, the guide sleeve comprises a cavity, and the cavity is connected with the positioning column in a matched mode.

2. The guide post and guide bush mounting structure as claimed in claim 1, wherein: the taper of the mounting hole is the same as that of the base part, and the taper of the mounting hole is 3-6 degrees.

3. The guide post and guide bush mounting structure as claimed in claim 1, wherein: the bottom of basic portion still is equipped with the guide ring, the external diameter of guide ring is less than the minimum external diameter of basic portion.

4. The guide post and guide bush mounting structure as claimed in claim 1, wherein: the positioning column is a straight cylinder, and the cavity is a straight cylindrical cavity.

5. The guide post and guide bush mounting structure as claimed in claim 1, wherein: the positioning column is a conical cylinder, and the cavity is a conical cavity.

6. The guide post and guide bush mounting structure as claimed in claim 5, wherein: the conicity of the positioning column is 1:20 or 1:50 or 1:100, and the conicity of the base part is also 1:20 or 1:50 or 1: 100.