Lifting guide mechanism of lifting platform

Abstract

The lifting guide mechanism of the lifting platform comprises a base, the lifting platform, a plurality of guide columns and a plurality of spherical-crown-shaped deviation rectifying cushion blocks, the base is provided with a plurality of installation holes corresponding to the guide columns in a one-to-one mode, and the lifting platform is provided with a plurality of guide holes corresponding to the guide columns in a one-to-one mode. The deviation rectifying cushion blocks and the guide columns are the same in number and are in one-to-one correspondence; through holes matched with the mounting holes are formed in the deviation rectifying cushion blocks; a plurality of spherical-crown-shaped grooves are formed in the upper surface of the base, the number of the spherical-crown-shaped grooves is the same as that of the mounting holes, the spherical-crown-shaped grooves and the mounting holes are in one-to-one correspondence, the mounting holes are formed in the bottoms of the corresponding spherical-crown-shaped grooves, the lower side face of the deviation rectifying cushion block is an outer spherical-crown face, the inner wall of each spherical-crown-shaped groove is an inner spherical-crown face, and the outer spherical-crown faces are in contact fit with the inner spherical-crown faces; the guide column sequentially penetrates through the through hole and the mounting hole and is connected with the base through a locking mechanism. When the lifting guide mechanism is installed, deviation correction of the position of the guide column can be rapidly and automatically completed, and assembling time and labor cost are greatly reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of machinery, in particular to a lifting guide mechanism of a lifting platform. Background Art

[0002] In various machining applications, the lifting guide mechanism is a core component that enables operations such as mold opening and closing and workpiece transfer. Its operational stability directly impacts mold processing accuracy and production efficiency. The guide post, serving as the guiding support for the lift platform, must precisely mate with the guide holes on the platform. Smooth movement along the guide post allows the platform to rise and fall smoothly.

[0003] In existing technology, guide posts are typically installed by directly fixing them to the base. However, during actual installation, guide posts are prone to slight tilt, resulting in multiple guide posts being non-parallel to each other. This is primarily due to the low machining precision of the guide post mounting holes. Errors in the verticality (relative to the base bottom surface) and positional accuracy (relative position of each hole) of the mounting holes can directly cause the guide posts to tilt slightly after installation.

[0004] The slight tilt of the guide column mentioned above can cause the lift to become stuck or even prevent installation during installation. To ensure the normal operation of the lift, operators need to spend a lot of time manually adjusting the guide column, which not only increases assembly time and labor costs, but also reduces production efficiency. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide a lifting guide mechanism for a lifting platform, which can quickly and automatically correct the position of a guide column during installation, greatly reducing assembly time and labor costs.

[0006] In order to solve the above technical problems, the technical solutions adopted are as follows:

[0007] A lifting guide mechanism of a lifting platform comprises a base, a lifting platform and multiple guide posts, the base is provided with multiple mounting holes corresponding one-to-one to the guide posts, and the lifting platform is provided with multiple guide holes corresponding one-to-one to the guide posts, characterized in that: it also includes multiple spherical crown-shaped correction pads, the number of correction pads is the same as that of the guide posts and they correspond one-to-one, and the correction pads are provided with through holes matching the mounting holes; the upper surface of the base is provided with multiple spherical crown-shaped grooves, the number of spherical crown grooves is the same as that of the mounting holes and they correspond one-to-one, the mounting holes are arranged at the bottom of the corresponding spherical crown-shaped grooves, the lower side surface of the correction pads is an outer spherical crown surface, the inner wall of the spherical crown groove is an inner spherical crown surface, and the outer spherical crown surface is in contact with the inner spherical crown surface; the guide posts pass through the through holes and the mounting holes in sequence and are connected to the base through a locking mechanism.

[0008] When installing the above-mentioned lifting guide mechanism, first, each guide column is passed through the through hole and the mounting hole in turn, and pre-tightened on the base using a locking mechanism. Under the action of the correction pad and the spherical crown groove, the guide column is in a state where it can swing slightly; then, the lifting platform is sleeved on the guide column through the guide hole. At this time, each guide column can slide accordingly in the spherical crown groove through the correction pad under the restriction of the corresponding guide hole of the lifting platform, so that the guide column automatically adjusts its position to be straightened and completes the correction; finally, each guide column that has completed the correction can be locked and completely fixed on the base. When this lifting guide mechanism is in use, the guide column can still slide along the spherical crown groove through the spherical crown-shaped correction pad in the pre-tightened state. Therefore, after the lifting platform is sleeved on the guide column, each guide column can automatically correct its position to ensure that the lifting and lowering can be maintained smoothly during subsequent work, and will not affect the life of the mold. Usually, the lifting platform is provided with multiple guide sleeves, and the guide sleeves are provided with the above-mentioned guide holes.

[0009] In a preferred embodiment, the upper surface of the deflection-correcting pad is a plane, and the center line of the through hole on the deflection-correcting pad is perpendicular to the upper surface of the deflection-correcting pad.

[0010] In the preferred embodiment, the guide column includes a column and a mounting column. The mounting column extends downward from the lower end of the column. A limiting step with a larger top and a smaller bottom is formed between the upper end of the mounting column and the lower end of the column. The mounting column passes through the through hole and the mounting hole in sequence and is fixedly connected to the base through a locking mechanism. The limiting step at the lower end of the column is on the upper surface of the correction pad.

[0011] In a further preferred embodiment, the locking mechanism comprises a nut and a threaded section formed on the side wall of the mounting post. The lower end of the mounting post extends through the mounting hole and protrudes from the underside of the base. The mounting post engages the nut through the threaded section. When screwing the nut onto the threaded section, the nut can be loosely tightened (i.e., the nut is not in close contact with the lower surface of the base). This acts as a pre-tightening mechanism, allowing the guide post to oscillate slightly, facilitating adjustment. After adjustment is complete, the nut can be fully tightened to secure the guide post.

[0012] The beneficial effect of the utility model is that the lifting guide mechanism can quickly and automatically complete deviation correction during installation without time-consuming adjustment. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a structural diagram of the lifting guide mechanism in an embodiment of the present utility model;

[0014] Figure 2 It is a cross-sectional view of the base and the guide column in the embodiment of the present utility model. DETAILED DESCRIPTION

[0015] The present invention will be further described below with reference to the accompanying drawings and specific embodiments:

[0016] like Figure 1-2 The lifting guide mechanism of a lifting platform shown in the figure includes a base 1, a lifting platform 2, multiple guide columns 3 and multiple spherical crown-shaped correcting pads 4. The base 1 is provided with multiple mounting holes 101 corresponding one-to-one to the guide columns 3, and the lifting platform 2 is provided with multiple guide holes 201 corresponding one-to-one to the guide columns 3. The number of correcting pads 4 is the same as that of the guide columns 3 and they correspond one-to-one. The correcting pads 4 are provided with through holes 401 matching the mounting holes 101; the upper surface of the base 1 is provided with multiple spherical crown-shaped grooves 102, the spherical crown-shaped grooves 102 are the same as the number of the mounting holes 101 and they correspond one-to-one, and the mounting holes 101 are arranged at the bottom of the corresponding spherical crown-shaped grooves 102, the lower side surface of the correcting pad 4 is an outer spherical crown surface, and the inner wall of the spherical crown groove 102 is an inner spherical crown surface, and the outer spherical crown surface is in contact with the inner spherical crown surface; the guide columns 3 pass through the through holes 401 and the mounting holes 101 in sequence and are connected to the base 1 through the locking mechanism 5.

[0017] When installing the above-mentioned lifting guide mechanism, first, each guide column 3 is passed through the through hole 401 and the mounting hole 101 in sequence, and is pre-tightened on the base 1 using the locking mechanism 5. Under the action of the correction pad 4 and the spherical crown groove 102, the guide column 3 is in a state where it can swing slightly. Then, the lifting platform 2 is mounted on the guide column 3 through the guide hole 201. At this time, each guide column 3 can slide in the spherical crown groove 102 through the correction pad 4 under the restriction of the corresponding guide hole 201 of the lifting platform 2, so that the guide column 3 automatically adjusts its position and aligns, completing the correction. Finally, each guide column 3 that has completed the correction can be locked and completely fixed on the base 1. When this lifting guide mechanism is in use, the guide column 3 can still slide along the spherical crown groove 102 through the spherical crown-shaped correction pad 4 in the pre-tightened state. Therefore, after the lifting platform 2 is mounted on the guide column 3, each guide column 3 can automatically correct its position, ensuring that the subsequent lifting can be maintained stable and will not affect the life of the mold. A plurality of guide sleeves 202 are provided on the lifting platform 2 , and the guide sleeves 202 are provided with the guide holes 201 .

[0018] The upper surface of the deflection-correcting pad 4 is a plane, and the center line of the through hole 401 on the deflection-correcting pad 4 is perpendicular to the upper surface of the deflection-correcting pad 4 .

[0019] The guide column 3 includes a column 301 and a mounting column 302. The mounting column 302 extends downward from the lower end of the column 301. A limit step with a larger top and a smaller bottom is formed between the upper end of the mounting column 302 and the lower end of the column 301. The mounting column 302 passes through the through hole 401 and the mounting hole 101 in sequence and is fixedly connected to the base 1 through the locking mechanism 5. The limit step at the lower end of the column 301 is on the upper surface of the correction pad 4.

[0020] The locking mechanism 5 comprises a nut 501 and a threaded section 502 formed on the sidewall of the mounting post 302. The lower end of the mounting post 302 extends through the mounting hole 101 and protrudes from the underside of the base 1. The mounting post 302 engages the nut 501 via the threaded section 502. When screwing the nut 501 onto the threaded section 502, it can be left loose (i.e., the nut 501 does not come into close contact with the lower surface of the base 1). This acts as a pre-tightening mechanism, allowing the guide post 3 to oscillate slightly for easier adjustment. After adjustment, the nut 501 can be fully tightened to secure the guide post 3.

Claims

1. A lifting guide mechanism for a lifting platform, comprising a base, a lifting platform, and a plurality of guide posts, wherein the base is provided with a plurality of mounting holes corresponding one-to-one to the guide posts, and the lifting platform is provided with a plurality of guide holes corresponding one-to-one to the guide posts, characterized in that: It also includes a plurality of spherical crown-shaped correction pads, the number of the correction pads is the same as that of the guide columns and they correspond one to one, and the correction pads are provided with through holes matching the mounting holes; the upper surface of the base is provided with a plurality of spherical crown-shaped grooves, the number of the spherical crown-shaped grooves is the same as that of the mounting holes and they correspond one to one, and the mounting holes are arranged at the bottom of the corresponding spherical crown-shaped grooves, the lower side surface of the correction pads is an outer spherical crown surface, the inner wall of the spherical crown groove is an inner spherical crown surface, and the outer spherical crown surface is in contact with the inner spherical crown surface; the guide columns pass through the through holes and the mounting holes in sequence and are connected to the base through a locking mechanism.

2. The lifting guide mechanism of a lifting platform according to claim 1, characterized in that: The upper surface of the deflection-correcting pad is a plane, and the center line of the through hole on the deflection-correcting pad is perpendicular to the upper surface of the deflection-correcting pad.

3. The lifting guide mechanism of a lifting platform according to claim 1, characterized in that: The guide column includes a column and a mounting column. The mounting column extends downward from the lower end of the column. A limit step with a larger top and a smaller bottom is formed between the upper end of the mounting column and the lower end of the column. The mounting column passes through the through hole and the mounting hole in sequence and is fixedly connected to the base through a locking mechanism. The limit step at the lower end of the column is on the upper surface of the correction pad.

4. The lifting guide mechanism of a lifting platform according to claim 3, characterized in that: The locking mechanism includes a nut and a threaded section provided on the side wall of the mounting post. The lower end of the mounting post passes through the mounting hole and is exposed below the base. The mounting post is threadably engaged with the nut through the threaded section.

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