CN216072084U - Unloading handling device - Google Patents

Abstract

The application provides a blanking carrying device which comprises a first carrying platform, a second carrying platform and a carrying mechanism, wherein the first carrying platform and the second carrying platform are arranged at intervals along the X-axis direction, and the carrying mechanism comprises a base; the X-axis movement mechanism comprises an X-axis movable seat which is movably arranged on the base along the X-axis direction, and an X-axis driving component which is used for driving the X-axis movable seat to move along the X-axis direction so as to move between the first carrying platform and the second carrying platform; the Z-axis motion mechanism comprises a Z-axis movable seat which is movably arranged on the X-axis movable seat along the Z direction and a Z-axis driving component which is used for driving the Z-axis movable seat to move along the Z direction; and the material moving mechanism is arranged on the Z-axis movable seat and is used for jacking the workpieces on the first carrying platform and the second carrying platform so as to carry the workpieces to a preset position. The application provides a unloading handling device, simple structure, processing is convenient, and can effective reduce cost expense, makes things convenient for later maintenance.

Description

Unloading handling device

Technical Field

The application belongs to the technical field of unloading transport, and more specifically relates to an unloading handling device.

Background

In the manufacturing of the liquid crystal panel, due to the limitation of space, the liquid crystal panel is generally conveyed by a mechanical arm above a carrying platform to be taken and placed, so that the sucker is convenient to fix, the wiring and air pipe routing are easy, and the operation is convenient.

In order to improve the working efficiency, the carrying tables are generally arranged into double stations which are arranged in a bilateral symmetry manner, and products processed by the carrying tables on the left side and the right side are discharged through the middle positions. Because the size of panel is great, reaches 88 cun usually (being panel length 1956mm, wide 1108mm), if directly carry to the intermediate position by the microscope carrier this moment, the microscope carrier of both sides needs to adopt the marble to make integrative structure to improve the stability of transportation, nevertheless adopt the microscope carrier length size of this kind of mode to reach 7950mm, width size reaches 2350mm, therefore leads to the processing degree of difficulty great, and the cost is higher.

SUMMERY OF THE UTILITY MODEL

An object of this application is to provide a unloading handling device, solves the big and higher technical problem of cost of the processing degree of difficulty that exists among the prior art.

In order to achieve the purpose, the technical scheme adopted by the application is as follows: the utility model provides an unloading handling device, includes first microscope carrier, second microscope carrier and removes material mechanism, first microscope carrier with the second microscope carrier sets up along X axle direction interval, it includes to remove material mechanism:

a base;

the X-axis movement mechanism comprises an X-axis movable seat which is movably arranged on the base along the X-axis direction, and an X-axis driving component which is used for driving the X-axis movable seat to move along the X-axis direction so as to move between the first carrying platform and the second carrying platform;

the Z-axis motion mechanism comprises a Z-axis movable seat which is movably arranged on the X-axis movable seat along the Z direction and a Z-axis driving component which is used for driving the Z-axis movable seat to move along the Z direction; and the number of the first and second groups,

and the material moving mechanism is arranged on the Z-axis movable seat and is used for jacking the workpieces on the first carrying platform and the second carrying platform so as to carry the workpieces to a preset position.

Furthermore, a fine adjustment assembly is arranged between the material moving mechanism and the Z-axis movable seat and used for adjusting the position of the material moving mechanism in the Y-axis direction, the fine adjustment assembly comprises a base, a guide rail and a sliding block matched with the guide rail, the base is arranged on the Z-axis movable seat, the guide rail is arranged on the base, and the sliding block is arranged on the material moving mechanism; or the guide rail is arranged on the material moving mechanism, and the sliding block is arranged on the base.

Further, the base includes fixed plate and base plate, the fixed plate set up in on the Z axle sliding seat, the guide rail perhaps the slider set up in on the base plate, be provided with a plurality of first regulation holes along Z axle direction interval on the base plate, be provided with first fixed orifices on the fixed plate, first fastener pass arbitrary first regulation hole and with first fixed orifices is connected fixedly, in order to incite somebody to action the base plate is fixed on the fixed plate.

Further, move material mechanism including set up in crossbeam seat on the Z axle sliding seat, a plurality of along Y axle direction interval set up in supporting seat on the crossbeam seat and set up in adsorption component on the supporting seat.

Furthermore, the adsorption component comprises a hard suction nozzle arranged on the supporting seat and a flexible suction nozzle arranged in the hard suction nozzle, the adsorption end of the flexible suction nozzle is exposed out of the hard suction nozzle to adsorb the workpiece, and the hard suction nozzle is used for providing supporting force to position the workpiece when the flexible suction nozzle adsorbs the workpiece.

Furthermore, a plurality of mounting positions are arranged on the supporting seat along the X-axis direction, the hard suction nozzles comprise a plurality of hard suction nozzles, and the hard suction nozzles are mounted in any mounting positions.

Further, the supporting seat comprises a bottom plate arranged on the cross beam seat, a second connecting plate connected with one side of the bottom plate, a first connecting plate connected with the other opposite side of the bottom plate, and a mounting plate, one end of the mounting plate is connected with the first connecting plate, the other end of the mounting plate is connected with the second connecting plate, and the adsorption component is arranged on the mounting plate.

Furthermore, a plurality of second connecting holes are formed in the crossbeam seat at intervals along the Y-axis direction, second adjusting holes are formed in the supporting seat, and second fasteners penetrate through the second adjusting holes and are fixedly connected with the second connecting holes.

Further, the first stage and the second stage each include:

a mounting frame; and the number of the first and second groups,

the bearing assemblies are arranged on the mounting frame at intervals along the Y-axis direction, and a channel for the moving mechanism to move is formed between every two adjacent bearing assemblies.

Furthermore, the X-axis movement mechanism and the Z-axis movement mechanism comprise two groups, and two ends of the material moving mechanism are respectively arranged on the Z-axis movable seat on each Z-axis movement mechanism.

The application provides a unloading handling device's beneficial effect lies in: through setting up first microscope carrier and second microscope carrier alone to the cooperation adds between first microscope carrier and second microscope carrier and removes material mechanism, carries the work piece on first microscope carrier and the second microscope carrier to preset position through removing material mechanism and carries out the unloading, for directly carrying out the unloading by the first microscope carrier of integral type and second microscope carrier, its simple structure, processing is convenient, and can effectively reduce cost expense, makes things convenient for later maintenance.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.

Fig. 1 is a schematic perspective view of a blanking conveying device according to an embodiment of the present application;

fig. 2 is a schematic perspective view of a material conveying mechanism according to an embodiment of the present application;

FIG. 3 is an exploded view of the structure of FIG. 2;

FIG. 4 is a schematic structural diagram of a trimming assembly used in an embodiment of the present application;

fig. 5 is a schematic perspective view of a material moving mechanism adopted in the embodiment of the present application;

FIG. 6 is a schematic diagram of a vertical cross-section of an adsorption assembly used in an embodiment of the present application;

fig. 7 is a schematic perspective view of the first stage or the second stage.

Wherein, in the figures, the respective reference numerals:

10. a first stage; 11. a mounting frame; 12. a load bearing assembly; 13. a channel; 20. a second stage; 30. A material carrying mechanism; 40. a base; 50. an X-axis motion mechanism; 51. an X-axis movable seat; 52. an X-axis drive assembly; 60. a Z-axis motion mechanism; 61. a Z-axis movable seat; 62. a Z-axis drive assembly; 70. a material moving mechanism; 71. A beam mount; 711. a second connection hole; 72. a supporting seat; 721. an installation position; 722. a base plate; 723. a first connecting plate; 724. a second connecting plate; 725. mounting a plate; 726. a second adjustment aperture; 73. an adsorption component; 731. a hard suction nozzle; 7311. a containing groove; 7312. a top rod; 732. a flexible suction nozzle; 80. a fine tuning component; 81. a base; 811. a fixing plate; 8111. a first fixing hole; 812. a substrate; 8121. a first adjustment aperture; 82. a guide rail; 83. a slider; 100. and (5) a workpiece.

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects to be solved by the present application clearer, the present application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, refer to an orientation or positional relationship illustrated in the drawings for convenience in describing the present application and to simplify description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present application.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

Referring to fig. 1 to 3 together, the blanking conveying apparatus provided in the present application will now be described. The blanking conveying device provided by the application comprises a first carrying platform 10, a second carrying platform 20 and a conveying mechanism 30. One of the stages and the second stage 20 are used for carrying a workpiece 100 to be blanked, and the workpiece 100 may be a liquid crystal panel with a larger size. By arranging the first carrying platform 10 and the second carrying platform 20 at the same time, the blanking efficiency can be effectively improved.

The material handling mechanism 30 includes a base 40, an X-axis movement mechanism 50, a Z-axis movement mechanism 60, and a material transfer mechanism 70. The X-axis movement mechanism 50 includes an X-axis movable mount 51 and an X-axis drive assembly 52. The X-axis movable mount 51 is provided on the base 40 to be movable in the X-axis direction. The X-axis drive unit 52 is configured to drive the X-axis movable base 51 to move in the X-axis direction, so that the X-axis movable base 51 can move between the first stage 10 and the second stage 20. The Z-axis movement mechanism 60 includes a Z-axis movable base 61 and a Z-axis drive assembly 62. The Z-axis movable mount 61 is provided on the X-axis movable mount 51 movably in the Z-th direction. The Z-axis driving assembly 62 is used for driving the Z-axis movable seat 61 to move along the Z-axis direction. The material moving mechanism 70 is disposed on the Z-axis movable base 61 and is used for lifting up the workpiece 100 on the first stage 10 and the second stage 20 to be transported to a preset position.

In the present embodiment, the "preset position" is an intermediate position between the first stage 10 and the second stage 20, but may be set according to actual needs. The workpiece 100 on the first stage 10 and the second stage 20 is carried to a preset position by the material moving mechanism 70, so that the subsequent blanking operation is facilitated. The "X-axis direction", "Y-axis direction", and "Z-axis direction" are shown in fig. 1, the X-axis and the Y-axis are two coordinate axes perpendicular to each other on the same horizontal plane, and the Z-axis is a coordinate axis in the vertical direction.

When the workpiece 100 to be blanked on the first stage 10 or the second stage 20 needs to be transported, firstly, the Z-axis driving assembly 62 drives the Z-axis movable base 61 to descend along the Z-axis direction, so that the material moving mechanism 70 descends, and the collision between the workpiece and the first stage 10 or the second stage 20 during transportation is avoided;

then, the X-axis driving assembly 52 drives the X-axis movable base 51 to move along the X-axis direction, so that the material moving mechanism 70 can be close to the first stage 10 or the second stage 20;

when the material moving mechanism 70 is moved to a proper position, the Z-axis driving assembly 62 drives the Z-axis movable base 61 to lift along the Z-axis direction, so that the material moving mechanism 70 is lifted to lift the workpiece 100 on the first stage 10 or the second stage 20;

finally, the X-axis driving assembly 52 drives the X-axis movable seat 51 to move reversely along the X-axis direction until the material moving mechanism 70 moves to a preset position to facilitate the subsequent blanking operation.

The application provides an unloading handling device, through setting up first microscope carrier 10 and second microscope carrier 20 alone to the cooperation sets up between first microscope carrier 10 and second microscope carrier 20 and removes material mechanism 30, carry the work piece 100 on first microscope carrier 10 and the second microscope carrier 20 to predetermineeing the position through removing material mechanism 30 and carry out the unloading, for directly carrying out the unloading by the first microscope carrier 10 of integral type and second microscope carrier 20, its simple structure, processing is convenient, and can effectively reduce cost expense, make things convenient for later maintenance.

Further, referring to fig. 3 to 4, as a specific embodiment of the blanking conveying apparatus provided by the present application, a fine adjustment assembly 80 is disposed between the material moving mechanism 70 and the Z-axis movable base 61, and is used for adjusting the position of the material moving mechanism 70 in the Y-axis direction, so that the material moving mechanism 70 can perform a fine adjustment in a certain range in the Y-axis direction, and avoid collision with the first stage 10 or the second stage 20 due to errors. Specifically, the fine adjustment assembly 80 includes a base 81, a rail 82, and a slider 83 disposed in cooperation with the rail 82. The base 81 is disposed on the Z-axis movable seat 61, in one embodiment of the present application, the guide rail 82 may be disposed on the base 81, and the sliding block 83 may be disposed on the material moving mechanism 70, so that the material moving mechanism 70 may perform fine adjustment along the guide rail 82, of course, in another embodiment of the present application, the guide rail 82 may also be disposed on the material moving mechanism 70, and the sliding block 83 may also be disposed on the base 81. In this embodiment, the fine adjustment assembly 80 may be disposed on one side of the material moving mechanism 70 connected to the Z-axis movable seat 61, that is, one side of the material moving mechanism 70 connected to the Z-axis movable seat 61 is connected to the Z-axis movable seat in a sliding manner, and the other side of the material moving mechanism 70 connected to the Z-axis movable seat 61 is connected to the Z-axis movable seat in a fixed manner. Of course, the arrangement manner is not limited to this, for example, in another embodiment of the present application, the fine adjustment assembly 80 may be disposed on both sides of the material moving mechanism 70 connected to the Z-axis movable seat 61, that is, both sides of the material moving mechanism 70 connected to the Z-axis movable seat 61 are connected in a sliding manner.

Further, referring to fig. 3 to 4, as an embodiment of the blanking transferring apparatus provided by the present application, the base 81 includes a fixing plate 811 and a substrate 812, the fixing plate 811 is disposed on the Z-axis movable seat 61, and the guide rail 82 or the slider 83 is disposed on the substrate 812. A plurality of first adjusting holes 8121 are formed in the substrate 812 at intervals in the Z-axis direction, first fixing holes 8111 are formed in the fixing plate 811, and first fastening members (not shown) pass through any of the first adjusting holes 8121 and are fixedly connected to the first fixing holes 8111, so that the substrate 812 is fixed to the fixing plate 811. Through the cooperation of first fastener and first regulation hole 8121 to can realize base plate 812 in the ascending regulation of Z axle direction, can realize moving the altitude mixture control of material mechanism 70, its application scope is wider. Specifically, the first fastening member may be a screw, and the first fixing hole 8111 may be a threaded hole.

Further, referring to fig. 2 to 3, as an embodiment of the blanking conveying apparatus provided in the present application, the material moving mechanism 70 includes a beam seat 71, a plurality of support seats 72, and an adsorption assembly 73. The beam seat 71 is disposed on the Z-axis movable seat 61, and the plurality of support seats 72 are disposed on the beam seat 71 at intervals in the Y-axis direction. The adsorption assembly 73 is disposed on the support base 72. The plurality of supporting seats 72 are arranged at intervals and can be staggered with the bearing component 12 to avoid interference. The suction member 73 is used to suck and fix the lower surface of the workpiece 100 when in contact with the workpiece 100, and prevents the workpiece 100 from being displaced during conveyance.

Further, referring to fig. 5 to 6, as an embodiment of the blanking conveying apparatus provided by the present application, the suction assembly 73 includes a hard suction nozzle 731 disposed on the supporting base 72, and a flexible suction nozzle 732 disposed in the hard suction nozzle 731. The suction end of the flexible suction nozzle 732 is exposed to the outside of the hard suction nozzle 731 to suck the workpiece 100, and the flexible suction nozzle 732 is provided to prevent the workpiece 100 from being damaged. The hard suction nozzle 731 is used to provide a supporting force to position the workpiece 100 when the flexible suction nozzle 732 sucks the workpiece 100, to ensure the levelness of the workpiece 100, and to prevent deformation. When the workpiece 100 needs to be sucked, the flexible suction nozzle 732 can suck the workpiece 100, and at this time, the flexible suction cup has a certain shrinkage deformation, so that the workpiece 100 is pressed against the hard suction nozzle 731, and the hard suction nozzle 731 positions the workpiece 100.

Further, referring to fig. 5, as a specific embodiment of the blanking conveying device provided in the present application, a plurality of mounting positions 721 are disposed on the supporting base 72 along the X-axis direction, the hard suction nozzles 731 include a plurality of hard suction nozzles 731, and the plurality of hard suction nozzles 731 are mounted in any mounting position 721, so that the hard suction nozzles can be mounted according to actual requirements.

Further, referring to fig. 6, as a specific embodiment of the blanking conveying apparatus provided in the present application, an accommodating groove 7311 is provided in the rigid suction nozzle 731, a push rod 7312 is provided in the accommodating groove 7311, and the flexible suction nozzle 732 extends into the accommodating groove 7311 and is connected and fixed with the push rod 7312.

Further, referring to fig. 5, as an embodiment of the blanking conveying device provided in the present application, the supporting seat 72 includes a bottom plate 722 disposed on the beam seat 71, a first connecting plate 723 connected to one side of the bottom plate 722, a second connecting plate 724 connected to the other side of the bottom plate 722, and a mounting plate 725 having one end connected to the first connecting plate 723 and the other end connected to the second connecting plate 724. The suction assembly 73 is disposed on the mounting plate 725, and the supporting seat 72 is formed by surrounding the bottom plate 722, the first connecting plate 723, the second connecting plate 724 and the mounting plate 725, and has a strong structure, so as to play a role of stable support. In the present application, the base plate 722, the first connecting plate 723, the second connecting plate 724, and the mounting plate 725 may be provided as an integrally formed structure.

Further, referring to fig. 3 and 5, as a specific embodiment of the blanking conveying device provided in the present application, a plurality of second connecting holes 711 are provided at intervals along the Y-axis direction on the beam seat 71, a second adjusting hole 726 is provided on the supporting seat 72, and a second fastening member (not shown) passes through the second adjusting hole 726 and is connected and fixed to any of the second connecting holes 711. Through the cooperation of second fastener and second regulation hole 726 to can realize supporting seat 72 in ascending regulation of Y axle direction, can select the mounted position 721 of supporting seat 72 to put according to actual need, its application scope is wider. Specifically, the second fastening member may be a screw, and the second fixing hole may be a threaded hole.

Further, referring to fig. 1 and fig. 7, as an embodiment of the blanking conveying apparatus provided in the present application, each of the first stage 10 and the second stage 20 includes a mounting frame 11 and a plurality of carrier assemblies 12. A plurality of bearing assemblies 12 are arranged on the mounting frame 11 at intervals along the Y-axis direction, and a channel 13 for moving the material moving mechanism 70 is formed between two adjacent bearing assemblies 12. When the material moving mechanism 70 does not work, the height of the material moving mechanism 70 is lower than that of the first stage 10 or the second stage 20 at this time, so that the interference of the first stage 10 or the second stage 20 is prevented. When the workpiece 100 needs to be supported and fixed, the material moving mechanism 70 moves along the Z-axis direction to extend out of the first stage 10 or the second stage 20, so that the workpiece 100 can be supported. The structure is simple and compact, and the volume is favorably reduced. In particular, the carrier assembly 12 may be a suction cup.

Further, referring to fig. 1 to fig. 3, as an embodiment of the blanking conveying apparatus provided in the present application, the X-axis moving mechanism 50 and the Z-axis moving mechanism 60 both include two sets, and both ends of the material moving mechanism 70 are respectively disposed on the Z-axis movable base 61 on each Z-axis moving mechanism 60. Because the size of the workpiece 100 is larger, the size of the material moving mechanism 70 is larger, and the X-axis moving mechanism 50 and the Z-axis moving mechanism 60 are arranged into two groups, so that the running stability can be ensured.

The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims (10)

1. The utility model provides a unloading handling device which characterized in that: including first microscope carrier, second microscope carrier and remove material mechanism, first microscope carrier with the second microscope carrier sets up along X axle direction interval, it includes to remove material mechanism:

a base;

the X-axis movement mechanism comprises an X-axis movable seat which is movably arranged on the base along the X-axis direction, and an X-axis driving component which is used for driving the X-axis movable seat to move along the X-axis direction so as to move between the first carrying platform and the second carrying platform;

the Z-axis motion mechanism comprises a Z-axis movable seat which is movably arranged on the X-axis movable seat along the Z-axis direction and a Z-axis driving component which is used for driving the Z-axis movable seat to move along the Z-axis direction; and the number of the first and second groups,

and the material moving mechanism is arranged on the Z-axis movable seat and is used for jacking the workpieces on the first carrying platform and the second carrying platform so as to carry the workpieces to a preset position.

2. The blanking-carrying apparatus according to claim 1, wherein: a fine adjustment assembly is arranged between the material moving mechanism and the Z-axis movable seat and used for adjusting the position of the material moving mechanism in the Y-axis direction, the fine adjustment assembly comprises a base, a guide rail and a sliding block matched with the guide rail, the base is arranged on the Z-axis movable seat, the guide rail is arranged on the base, and the sliding block is arranged on the material moving mechanism; or the guide rail is arranged on the material moving mechanism, and the sliding block is arranged on the base.

3. The blanking-carrying apparatus according to claim 2, wherein: the base includes fixed plate and base plate, the fixed plate set up in on the Z axle sliding seat, the guide rail perhaps the slider set up in on the base plate, be provided with a plurality of first regulation holes along Z axle direction interval on the base plate, be provided with first fixed orifices on the fixed plate, first fastener pass arbitrary first regulation hole and with first fixed orifices is connected fixedly, with will the base plate is fixed on the fixed plate.

4. The blanking-carrying apparatus according to claim 1, wherein: move material mechanism including set up in crossbeam seat on the Z axle sliding seat, a plurality of along Y axle direction interval set up in supporting seat on the crossbeam seat and set up in adsorption component on the supporting seat.

5. The blanking-carrying apparatus according to claim 4, wherein: the adsorption assembly comprises a hard suction nozzle and a flexible suction nozzle, the hard suction nozzle is arranged on the supporting seat, the flexible suction nozzle is arranged in the hard suction nozzle, the adsorption end of the flexible suction nozzle is exposed out of the hard suction nozzle to adsorb the workpiece, and the hard suction nozzle is used for providing supporting force to position the workpiece when the flexible suction nozzle adsorbs the workpiece.

6. The blanking-carrying apparatus according to claim 5, wherein: the supporting seat is provided with a plurality of mounting positions along the X-axis direction, the hard suction nozzles comprise a plurality of hard suction nozzles, and the hard suction nozzles are mounted in any mounting positions.

7. The blanking-carrying apparatus according to claim 4, wherein: the supporting seat comprises a bottom plate arranged on the cross beam seat, a second connecting plate connected with one side of the bottom plate, a first connecting plate connected with the other opposite side of the bottom plate, and a mounting plate, wherein one end of the mounting plate is connected with the other end of the mounting plate through the first connecting plate, and the mounting plate is connected with the second connecting plate, and the adsorption component is arranged on the mounting plate.

8. The blanking-carrying apparatus according to claim 4, wherein: a plurality of second connecting holes are formed in the crossbeam seat at intervals along the Y-axis direction, second adjusting holes are formed in the supporting seat, and second fasteners penetrate through the second adjusting holes and are fixedly connected with the second connecting holes optionally.

9. The blanking handling apparatus of any one of claims 1 to 8, wherein: the first stage and the second stage each include:

a mounting frame; and the number of the first and second groups,

the bearing assemblies are arranged on the mounting frame at intervals along the Y-axis direction, and a channel for the moving mechanism to move is formed between every two adjacent bearing assemblies.

10. The blanking handling apparatus of any one of claims 1 to 8, wherein: the X-axis movement mechanism and the Z-axis movement mechanism respectively comprise two groups, and two ends of the material moving mechanism are respectively arranged on the Z-axis movable seats on the Z-axis movement mechanisms.

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