CN111810802B

CN111810802B - Lifting platform and laser direct imaging equipment

Info

Publication number: CN111810802B
Application number: CN202010723771.9A
Authority: CN
Inventors: 温延培; 魏亚菲; 刘长清; 祝锁; 曹葵康; 蔡雄飞
Original assignee: Tztek Technology Co Ltd
Current assignee: Tztek Technology Co Ltd
Priority date: 2020-07-24
Filing date: 2020-07-24
Publication date: 2022-08-19
Anticipated expiration: 2040-07-24
Also published as: CN111810802A

Abstract

The invention provides a lifting platform and a laser direct imaging device, wherein the lifting platform comprises: a base; the two groups of wedges are respectively arranged on two sides of the base in parallel, each group of wedges comprises an upper wedge and a lower wedge, the upper wedge and the lower wedge can slide relatively, and the upper surface of the upper wedge is parallel to the surface of the base; the driving device is connected with the two groups of wedges so as to drive the lower wedge in each group of wedges to slide relative to the upper wedge; and two ends of the carrier support are respectively connected with the upper wedge block, and the carrier support is used for bearing the workbench. According to the lifting platform disclosed by the invention, the stress of the driving device can be reduced, and the precision and the stability of lifting motion are improved.

Description

Lifting platform and laser direct imaging equipment

Technical Field

The invention relates to the field of laser direct imaging, in particular to a lifting platform and laser direct imaging equipment.

Background

A common lifting platform directly jacks up a workbench by virtue of a driving device, the driving device always bears all gravity of the workbench, lifting movement is possible to cause the workbench to slide downwards, stability is poor, precision is low, and the driving device is easy to damage.

Disclosure of Invention

In view of this, the invention provides a lifting platform and a laser direct imaging device, which can reduce the stress of a driving device and improve the precision and stability of lifting movement.

To solve the above technical problem, in one aspect, the present invention provides a lifting platform, including:

a base;

the two groups of wedges are respectively arranged on two sides of the base in parallel, each group of wedges comprises an upper wedge and a lower wedge, the upper wedge and the lower wedge can slide relatively, and the upper surface of the upper wedge is parallel to the surface of the base;

the driving device is connected with the two groups of wedges so as to drive the lower wedge in each group of wedges to slide relative to the upper wedge;

and two ends of the carrier support are respectively connected with the upper wedge block, and the carrier support is used for bearing the workbench.

Further, the lift platform still includes:

the top plate is arranged between the two groups of wedges, two lower wedges are respectively connected with two sides of the top plate,

the driving device is connected with the top plate and drives the two lower wedge blocks to move back and forth by driving the top plate.

Further, the lift platform still includes:

the two guide rails are arranged along the front-back direction of the upper surface of the base, and the two lower wedge blocks are respectively connected with the two guide rails to move front and back along the guide rails.

Further, the driving device is a motor.

Further, the lift platform still includes:

and the blocking devices are abutted against the front end and the rear end of the carrier support so as to block the front-rear movement of the carrier support.

Further, the blocking device comprises:

two of the four sliding blocks are arranged at the front end of the carrier support, and the other two sliding blocks are arranged at the rear end of the carrier support;

the four fixed blocks and the four sliding blocks are correspondingly arranged on the base, sliding grooves are formed in the fixed blocks, and the sliding blocks are connected in the sliding grooves in a sliding mode.

Further, the blocking device further comprises:

the stop block is arranged on the base and is close to the sliding groove, and the stop block is abutted with the front end and the rear end of the carrier bracket.

Further, the stage support comprises:

the platform deck support is connected with the upper wedge block through two ends of the upper plate respectively;

and the two side plates are respectively connected with the lower surface of the upper plate and are positioned at the outer sides of the two upper wedge blocks.

Further, the lift platform still includes:

the two slide rails are respectively arranged between the upper wedge blocks and the lower wedge blocks of the two groups of wedge blocks.

In another aspect, the present invention provides a laser direct imaging apparatus, including any one of the above-mentioned lifting platforms.

The technical scheme of the invention at least has one of the following beneficial effects:

the lifting platform comprises a base, two groups of wedge blocks, a driving device and a platform support, wherein the driving device pushes a lower wedge block in each group of wedge blocks to slide relative to an upper wedge block, the upper wedge block carries out lifting motion, the upper wedge block drives the platform support connected with the upper wedge block to carry out lifting motion, and a workbench is arranged on the platform support, so that the workbench can carry out lifting motion, the driving device does not directly bear the gravity of the workbench, the driving direction is vertical to the gravity direction of the workbench, the lifting motion can be relatively stable, and the precision is relatively high.

Drawings

Fig. 1 is a schematic structural diagram of a lifting platform according to an embodiment of the present invention;

fig. 2 is a schematic diagram of the lift platform of fig. 1 with the stage support removed.

Reference numerals are as follows:

100. a base; 210. an upper wedge block; 220. a lower wedge block; 300. a drive device; 411. a slider; 412. a fixed block; 420. a stopper; 500. a top plate; 600. a stage support; 610. an upper plate; 620. side plates.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the drawings of the embodiments of the present invention. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the described embodiments of the invention, are within the scope of the invention.

Unless otherwise defined, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs. The use of "first," "second," and the like, herein does not denote any order, quantity, or importance, but rather the terms "first," "second," and the like are used to distinguish one element from another. Also, the use of the terms "a" or "an" and the like do not denote a limitation of quantity, but rather denote the presence of at least one. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships are changed accordingly.

Hereinafter, a lifting platform according to an embodiment of the present invention will be described first with reference to the accompanying drawings.

As shown in fig. 1 and 2, the elevating platform according to the present invention comprises: base 100, two sets of wedges, drive device 300, and stage holder 600.

First, the base 100 is explained.

The base 100 is disposed on the mounting surface for supporting other components.

Next, two sets of wedges will be described. Two sets of wedges are respectively arranged on two sides of the base 100 in parallel, wherein each set of wedges comprises an upper wedge 210 and a lower wedge 220, the upper wedge 210 and the lower wedge 220 can slide relatively, and the upper surface of the upper wedge 210 is parallel to the surface of the base 100.

The lower wedge block 220 slides relative to the upper wedge block 210, and the upper wedge block 210 is subjected to upward thrust and self gravity, and can perform corresponding lifting movement. This enables the upper wedge 210 to move up and down. Wherein, the upper wedge 210 and the lower wedge 220 may be two right-angled trapezoids with opposite slopes or two right-angled triangles with opposite slopes.

Next, the driving device 300 is explained. The driving device 300 connects the two sets of wedges to drive the lower wedge 220 of each set of wedges to slide relative to the upper wedge 210.

The driving device 300 drives the lower wedge block 220 in each group of wedge blocks to slide relative to the upper wedge block 210, the upper wedge block 210 performs lifting motion, the sliding distance of the lower wedge block 220 can be accurately adjusted through the driving device 300, and the lifting distance of the upper wedge block 210 can be accurately adjusted according to the relation between the relative sliding distance of the upper wedge block 210 and the lower wedge block 220 and the height of the upper wedge block 210. The driving device 300 is connected with the wedge block and pushes the lower wedge block 220 to move back and forth, the stress on the driving device 300 is relatively small, and the movement is relatively stable.

The driving device 300 may be a motor, and the motor drives the stage holder 600 to move stably and precisely. The motor may be a linear motor or a rotary motor.

Finally, the stage holder 600 is explained. The upper wedge 210 is connected to both ends of the stage holder 600, and the stage holder 600 is used to carry a table.

The upper wedge 210 is connected to both ends of the stage support 600, and the stage support 600 is driven to move up and down by the up-and-down movement of the upper wedge 210. The work table is mounted on the stage support 600, and the stage support 600 performs a lifting motion, thereby driving the work table to perform a lifting motion. The stage support 600 can stably bear the workbench, and the workbench is prevented from being shifted.

In the lifting platform formed above, the driving device 300 pushes the lower wedge 220 in each set of wedges to slide relative to the upper wedge 210, the upper wedge 210 performs lifting motion, the upper wedge 210 drives the stage support 600 connected with the upper wedge to perform lifting motion, and the workbench is arranged on the stage support 600, so that the workbench can perform lifting motion. The driving device 300 does not directly bear the gravity of the workbench, and the driving direction is vertical to the gravity direction of the workbench, so that the lifting motion is relatively stable, and the precision is relatively high.

Further, the lifting platform also comprises a top plate 500.

The top plate 500 is arranged between the two sets of wedges, and two sides of the top plate 500 are respectively connected with the two lower wedges 220, wherein the driving device 300 is connected with the top plate 500, and drives the two lower wedges 220 to move back and forth by driving the top plate 500.

For example, the top plate 500 may be a U-shaped plate upside down, and the driving device 300 drives the lower wedge 220 of each set of wedges to move back and forth from the middle, so as to realize the lifting movement of the upper wedge 210 and thus the lifting movement of the stage holder 600. The lower wedge blocks 220 in the two groups of wedge blocks can move back and forth consistently through the top plate 500, so that the lifting motion is stable, the structure is simple and convenient, and the maintenance is convenient.

Further, the lift platform still includes two guide rails.

Both guide rails are provided along the front-rear direction of the upper surface of the base 100, and the two lower wedges 220 are respectively connected to the two guide rails to move forward and backward along the guide rails.

The guide rails comprise grooves or ridges, which slide in the grooves with low friction. The lower wedge 220 is connected with the guide rail, so that the friction force of the front-back movement of the lower wedge 220 can be reduced, the lower wedge 220 can stably and smoothly slide relative to the upper wedge 210, and the lifting movement of the carrier bracket 600 is smooth and stable.

According to some embodiments of the invention, the lifting platform further comprises a blocking device.

The stopper means abuts on both front and rear ends of the stage holder 600 to stop the stage holder 600 from moving forward and backward.

During the sliding of the lower wedge 220 relative to the upper wedge 210, the upper wedge 210 moves back and forth rather than just up and down. The carrier support 600 is prevented from moving back and forth by the blocking device, so that the carrier support 600 can only move up and down, and the carrier support 600 can move up and down stably.

Further, the blocking device comprises: four sliders 411 and four fixed blocks 412.

Two of the four sliders 411 are provided at the front end of the stage holder 600, and the other two sliders 411 are provided at the rear end of the stage holder 600. The four fixing blocks 412 and the four sliding blocks 411 are correspondingly arranged on the base 100, the fixing blocks 412 are provided with sliding grooves, and the sliding blocks 411 are connected in the sliding grooves in a sliding mode.

The sliders 411 provided at the front end and the rear end of the stage holder 600 slide up and down in the fixing block 412, so that the resistance to the lifting movement is reduced, the lifting movement is smooth, and the stability is improved. The blocking device blocks the stage holder 600 from moving back and forth by the fixing block 412.

Further, the blocking device further comprises a stop 420.

The stopper 420 is disposed on the base 100 and adjacent to the sliding slot, and the stopper 420 abuts against the front and rear ends of the stage holder 600.

By abutting the stopper 420 against the stage holder 600, the thrust applied to the fixing block 412 can be shared, and it is avoided that the slider 411 connected to the stage holder 600 is excessively pressed against the fixing block 412 due to the excessive thrust in the front-rear direction, and thus the friction force between the slider 411 and the fixing block 412 is increased, and it is difficult for the slider 411 to smoothly perform the lifting movement. Therefore, the lifting movement of the stage holder 600 can be more stable and smoother.

According to some embodiments of the present invention, the stage holder 600 comprises an upper plate 610 and two side plates 620.

The stage holder 600 is connected to the upper wedges 210 through both ends of the upper plate 610, respectively. The two side plates 620 are respectively connected to the lower surface of the upper plate 610 and located at the outer sides of the two upper wedges 210.

The upper plate 610 is connected at both ends to the upper wedge 210, enabling the upper wedge 210 to move in unison with the upper plate 610. The side plates 620 are disposed at both sides of the upper wedge 210, so that the upper wedge 210 and the upper plate 610 are prevented from being shifted left and right. Alternatively, the side plate 620 may extend to the lower wedge 220, so as to prevent the lower wedge 220 from shifting to the left and right with respect to the upper wedge 210 during the sliding of the lower wedge 220 with respect to the upper wedge 210.

According to some embodiments of the invention, the lifting platform further comprises two slide rails. The two slide rails are respectively arranged between the upper wedge 210 and the lower wedge 220 of the two sets of wedges.

The sliding rail can reduce the friction force of the movement and improve the linearity of the movement, and the lower wedge 220 is connected with the upper wedge 210 in a sliding manner through the sliding rail, so that the lower wedge 220 slides more smoothly and stably relative to the upper wedge 210, and the precision is higher.

In addition, the embodiment of the invention also provides laser direct imaging equipment which comprises any one of the lifting platforms.

While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the appended claims.

Claims

1. A lift platform, comprising:

a base (100);

the wedge blocks are respectively arranged on two sides of the base (100) in parallel, each wedge block comprises an upper wedge block (210) and a lower wedge block (220), the upper wedge block (210) and the lower wedge block (220) can slide relative to each other, and the upper surface of the upper wedge block (210) is parallel to the surface of the base (100);

the driving device (300) is connected with the two groups of wedges to drive the lower wedge (220) in each group of wedges to slide relative to the upper wedge (210);

the two ends of the platform carrier (600) are respectively connected with the upper wedge block (210), and the platform carrier (600) is used for bearing a workbench;

a blocking device that abuts on both front and rear ends of the stage holder (600) to block the stage holder (600) from moving forward and backward, the blocking device comprising:

four sliding blocks (411), two sliding blocks (411) of the four sliding blocks (411) are arranged at the front end of the stage support (600), and the other two sliding blocks (411) are arranged at the rear end of the stage support (600);

the four fixed blocks (412) are arranged on the base (100) corresponding to the four sliding blocks (411), sliding grooves are formed in the fixed blocks (412), and the sliding blocks (411) are connected in the sliding grooves in a sliding mode;

the blocking device further comprises:

the stop block (420) is arranged on the base (100) and is close to the sliding groove, and the stop block (420) is abutted against the front end and the rear end of the carrier bracket (600);

the top plate (500) is arranged between the two groups of wedges, two sides of the top plate (500) are respectively connected with the two lower wedges (220), the top plate (500) is a U-shaped plate which is upside down,

the driving device (300) is connected with the top plate (500), and the top plate (500) is driven to drive the two lower wedges (220) to move back and forth.

2. The lift platform of claim 1, further comprising:

the two guide rails are arranged along the front-back direction of the upper surface of the base (100), and the two lower wedge blocks (220) are respectively connected with the two guide rails to move back and forth along the guide rails.

3. The lifting platform according to claim 1, characterized in that the drive means (300) is a motor.

4. The lift platform of claim 1, wherein the stage support (600) comprises:

the upper plate (610), the stage support (600) is respectively connected with the upper wedge block (210) through two ends of the upper plate (610);

the two side plates (620) are respectively connected with the lower surface of the upper plate (610) and are positioned on the outer sides of the two upper wedges (210).

5. The lift platform of claim 1, further comprising:

the two slide rails are respectively arranged between the upper wedge block (210) and the lower wedge block (220) of the two groups of wedge blocks.

6. A laser direct imaging apparatus comprising the elevating platform of any one of claims 1 to 5.