CN215569416U - Lifting device of rotary workbench - Google Patents

Abstract

The utility model relates to a lifting device of a rotary workbench, which comprises a lifting table, two lifting rods and a driving motor, wherein the lifting rods are vertically fixed to the bottom of the lifting table, the driving motor drives the lifting rods to lift, the driving motor is fixed to an installation frame, the two lifting rods are symmetrically arranged on two sides of the center of the lifting table, a plurality of guide rods are arranged at the bottom of the lifting table, and the guide rods are connected to the installation frame in a sliding mode. Utility model's an usage is, two jacking rod symmetrical arrangement, can make being located between two jacking rods of the big probability of the focus of swivel work head to keep the stability of jacking in-process, the wearing and tearing of avoiding swivel work head's slope to lead to are serious, greatly reduced maintenance cost and maintenance frequency, be applicable to concrete mixing with swivel work head's lifting.

Description

Lifting device of rotary workbench

Technical Field

The utility model relates to the field of automation equipment, in particular to a lifting device of a rotary workbench.

Background

Along with the development of automation technology, a lot of traditional constructions are slowly replaced by automation equipment, especially in the aspect of model and mould preparation of concrete, the preparation of large-scale concrete model and mould is mostly accomplished by 3D printing apparatus automation at present, has improved preparation precision and preparation efficiency greatly.

3D printing apparatus is at automatic printing in-process, and the mixing requirement to the concrete is higher, and in automatic material mixing apparatus, generally adopt swivel work head to carry out the allotment stirring of concrete step by step in batches, the position in order to cooperate rabbling mechanism need be risen in swivel work head's stirring in-process. However, in the actual use process, the weight of concrete in the mixing tank on the rotary worktable is uneven, for example, the material placing part and the material feeding part are often left empty, so that the gravity center shifts, and the lifting mechanism is easy to cause serious abrasion and damage on one side in long-time work; but also causes poor lifting precision and influences the stirring effect of the concrete.

Therefore, a new lifting device for a rotary table is needed to solve the above problems.

SUMMERY OF THE UTILITY MODEL

One object of the present invention is to solve the problem that the conventional rotary table lifting apparatus is liable to be seriously worn due to the shift of the center of gravity.

According to one aspect of the utility model, a lifting device of a rotary workbench is provided, which comprises a lifting table, two lifting rods and a driving motor, wherein the lifting rods are vertically fixed to the bottom of the lifting table, the driving motor drives the lifting rods to lift, the driving motor is fixed to a mounting frame, the two lifting rods are symmetrically arranged on two sides of the center of the lifting table, and a plurality of guide rods are arranged at the bottom of the lifting table and are connected to the mounting frame in a sliding manner.

Through this scheme, two jacking rods symmetrical arrangement can make being located between two jacking rods of the big probability of centre of gravity of swivel work head to keep the stability of jacking in-process, the wearing and tearing of avoiding swivel work head's slope to lead to are serious, greatly reduced maintenance cost and maintenance frequency, be applicable to concrete mixing with swivel work head's lifting.

Preferably, the jacking rod is a screw rod, a threaded sleeve is connected to the mounting rack in a rotating mode, the jacking rod is in threaded connection with the threaded sleeve, and the driving motor drives the threaded sleeve to rotate.

Through this scheme, driving motor makes the screw rod reciprocate through rotatory thread bush, can improve the precision of elevating position greatly, and the screw rod is higher with thread bush's cooperation intensity moreover, and is more laborsaving.

Preferably, the outside cover of thread bush is equipped with the gear, driving motor through the worm with gear engagement, through the coupling joint between two worms.

Through this scheme, the cooperation of worm and gear is laborsaving more, helps reducing driving motor's power, further improves jacking precision.

Preferably, the jacking rod is sleeved with a dustproof sleeve, and the dustproof sleeve is fixed to the mounting frame.

By the scheme, the dustproof sleeve can prevent the concrete splashed in the concrete stirring process from influencing the lifting of the jacking rod; the influence of the external environment on the precision of the jacking rod is reduced, and the service life of the jacking rod is prolonged.

Preferably, the guide rod is provided with a positioning plate, the positioning plate is provided with a plurality of positioning portions, and the mounting frame is provided with a proximity switch matched with the positioning portions.

Through this scheme, the locating plate follows the in-process that the guide bar reciprocated, and proximity switch real-time supervision position.

Preferably, there are two positioning plates, and the two positioning plates are respectively fixed on two diagonally arranged guide rods.

Through this scheme, two locating plates that symmetrical arranged can carry out the detection of levelness to the revolving stage to guarantee the stability of jacking, improve workstation jacking precision, avoid the slope to lead to the equipment damage of stirring in-process.

The device has the technical effects that the device is simple in structure, and through synchronous jacking at two points and the matching of a plurality of guide rods, the stability in the jacking process is greatly improved, and equipment damage or uneven stirring caused by inclination is avoided.

Other features of the present invention and advantages thereof will become apparent from the following detailed description of exemplary embodiments thereof, which proceeds with reference to the accompanying drawings.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description, serve to explain the principles of the utility model.

Fig. 1 is a front view schematically illustrating a lifting device of a rotary table according to an embodiment of the present invention.

Fig. 2 is a schematic perspective view of a lifting device of the rotary table of fig. 1.

Fig. 3 is a schematic structural view of the lift pin and the driving motor of fig. 1.

Fig. 4 is a schematic view of a connection structure of the lift pin and the driving motor of fig. 3.

Fig. 5 is a schematic structural view of the jacking stage of fig. 1.

Wherein like parts are designated by like reference numerals throughout the several views; the figures are not drawn to scale.

Detailed Description

Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that: the relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise.

The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the utility model, its application, or uses.

Techniques and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail, but are intended to be considered a part of the specification where appropriate.

In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

Examples

As shown in fig. 1 to 5, the lifting device of a rotary table in this embodiment includes a lifting table 1100, a lifting rod 1210 and a driving motor 1220, the lifting rod 1210 is vertically fixed to the bottom of the lifting table 1100, the driving motor 1220 drives the lifting rod 1210 to move up and down, the driving motor 1220 is fixed to an installation frame 1300, there are two lifting rods 1210, the two lifting rods 1210 are symmetrically disposed at two sides of the center of the lifting table 1100, the bottom of the lifting table 1100 is provided with a plurality of guide rods 1110, and the guide rods 1110 are all slidably connected to the installation frame 1300.

Through this embodiment, two jacking rods 1210 are symmetrically arranged, and the gravity center of the rotary worktable is located between two jacking rods 1210 with high probability, so that the stability in the jacking process is maintained, the serious abrasion caused by the inclination of the rotary worktable is avoided, the maintenance cost and the maintenance frequency are greatly reduced, and the rotary worktable is suitable for lifting of a concrete mixing rotary worktable.

In this embodiment or other embodiments, the lifting rod 1210 is a screw rod, a threaded sleeve 1231 is rotatably connected to the mounting frame 1300, the lifting rod 1210 is in threaded connection with the threaded sleeve 1231, and the driving motor 1220 drives the threaded sleeve 1231 to rotate. The driving motor 1220 makes the screw rod move up and down by rotating the threaded sleeve 1231, so that the precision of the lifting position can be greatly improved, and the matching strength of the screw rod and the threaded sleeve 1231 is higher and more labor-saving.

In this embodiment or other embodiments, a gear 1232 is sleeved outside the threaded sleeve 1231, the driving motor 1220 is engaged with the gear 1232 through a worm 1221, and the two worms 1221 are connected through a coupling 1222 and driven by the same driving motor 1220.

The jacking rods 1210 on two sides are connected through the coupler 1222 and driven by the same driving motor 1220, so that the stability in the jacking process is greatly improved; the worm 1221 is more laborsaving with the cooperation of gear 1232, helps reducing the power of driving motor 1220, further improves jacking precision.

In this embodiment or other embodiments, the lifting rod 1210 is externally sleeved with a dust-proof sleeve 1211, the dust-proof sleeve 1211 is fixed to the mounting frame 1300, and the dust-proof sleeve 1211 can prevent the concrete splashed during the concrete mixing process from affecting the lifting of the lifting rod 1210; the influence of the external environment on the precision of the jacking rod 1210 is reduced, and the service life of the jacking rod is prolonged.

In this embodiment or other embodiments, the guide bar 1110 is provided with a positioning plate 1120, the positioning plate 1120 is provided with a plurality of positioning portions 1121, and the mounting rack 1300 is provided with a proximity switch 1310 matched with the positioning portions 1121. The proximity switch 1310 monitors the position in real time as the positioning plate 1120 moves up and down along with the guide shaft 1110.

In this embodiment or other embodiments, there are two positioning plates 1120, two positioning plates 1120 are respectively fixed to two diagonally arranged guide bars 1110, and two symmetrically arranged positioning plates 1120 can detect the levelness of the rotary worktable, so as to ensure the stability of jacking, improve the jacking precision of the worktable, and avoid the equipment damage caused by the inclination in the stirring process.

The top surface of jacking platform 1100 in this embodiment is provided with installation cavity 1101, be provided with gear train 1102 in the installation cavity 1101 for drive swivel work head, gear train 1102's driving motor can set up in bottom one side of jacking platform 1100 avoids causing the interference to swivel work head's rotation.

A proximity switch 1103 arranged at an included angle of 90 ° is arranged on the jacking table 1100, and the proximity switch 1103 is arranged outside the installation cavity 1101 and is used for positioning the rotation angle of the rotary worktable.

The technical effect of this embodiment lies in, this device simple structure through two synchronous jacking on points, is equipped with a plurality of guide bars, has improved the stability of jacking in-process greatly, avoids the equipment damage or the stirring that the slope leads to uneven.

Although some specific embodiments of the present invention have been described in detail by way of illustration, it should be understood by those skilled in the art that the above illustration is only for the purpose of illustration and is not intended to limit the scope of the utility model. It will be appreciated by those skilled in the art that modifications may be made to the above embodiments without departing from the scope and spirit of the utility model. The scope of the utility model is defined by the appended claims.

Claims (6)

1. The utility model provides a rotary worktable's lifting device, includes jacking platform, jacking rod and driving motor, jacking rod vertical fixation extremely jacking platform bottom, the driving motor drive the jacking rod goes up and down, driving motor is fixed to the mounting bracket on, its characterized in that, jacking rod has two, two jacking rod symmetry set up in the both sides at jacking platform center, the bottom of jacking platform is provided with a plurality of guide bars, the equal sliding connection of guide bar to on the mounting bracket.

2. The rotary worktable lifting device as claimed in claim 1, wherein the lifting rod is a screw rod, a threaded sleeve is rotatably connected to the mounting bracket, the lifting rod is in threaded connection with the threaded sleeve, and the driving motor drives the threaded sleeve to rotate.

3. The rotary worktable lifting device as claimed in claim 2, wherein a gear is sleeved outside the threaded sleeve, the driving motor is meshed with the gear through a worm, and the two worms are connected through a coupling.

4. A rotary table lifting apparatus according to claim 3 wherein the jacking rod is externally fitted with a dust boot, the dust boot being secured to the mounting bracket.

5. The rotary worktable lifting apparatus as claimed in claim 1, wherein the guide bar is provided with a positioning plate, the positioning plate is provided with a plurality of positioning portions, and the mounting bracket is provided with a proximity switch engaged with the positioning portions.

6. A rotary table lifting apparatus according to claim 5, wherein said positioning plates are two in number, and are fixed to two diagonally arranged guide rods, respectively.

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