CN114056867A

CN114056867A - Single main shaft module, carrying mechanism and automatic assembly equipment

Info

Publication number: CN114056867A
Application number: CN202111376566.0A
Authority: CN
Inventors: 时文静; 李加林; 陈忠源; 胡秋原
Original assignee: Suzhou Inspur Intelligent Technology Co Ltd
Current assignee: Suzhou Inspur Intelligent Technology Co Ltd
Priority date: 2021-11-19
Filing date: 2021-11-19
Publication date: 2022-02-18

Abstract

The invention discloses a single-spindle module, a carrying mechanism and automatic assembly equipment, wherein the single-spindle module comprises a fixed spindle and at least two moving assemblies arranged on the fixed spindle, any one of the moving assemblies is arranged on the fixed spindle through a ball bearing, balls are arranged between the ball bearing and the fixed spindle to form a ball screw assembly, and the single-spindle module also comprises a rotary driving mechanism which is connected with the ball bearings in a one-to-one correspondence manner and provides rotary power. The single-spindle module can be provided with at least two moving assemblies capable of executing independent motion on one fixed spindle, so that one spindle can be saved, the overall structure is simplified, and the production cost is reduced; on the other hand, can increase two at least independent extension movements on single main shaft, promotion work efficiency that like this can be very big, simultaneously, can avoid extravagant effective duty cycle of equipment.

Description

Single main shaft module, carrying mechanism and automatic assembly equipment

Technical Field

The invention relates to the technical field of automatic assembly, in particular to a single-spindle module, a carrying mechanism and automatic assembly equipment.

Background

At present, most of three-dimensional modules of automatic assembling machines on the market are generally built by a screw rod servo system, and the method has the following defects: for example, the lead screw system generally only matches one moving part, and because when two moving parts are matched, the two moving parts can only do the same-speed and same-distance movement at the same time, the framework working efficiency can not be greatly improved, and the effective duty ratio of the equipment is greatly wasted. When two moving parts need to move independently, only two sets of screw rods are usually arranged, wherein the two sets of screw rods drive the two moving parts to move independently respectively; however, the arrangement mode has high cost, complex structure and difficult layout, and two sets of motion mechanisms are difficult to place in a small space. With the increasing requirements for the structural layout of the automatic production line and the stricter control of the production cost, a single spindle module with simple structural layout, low cost and high working efficiency needs to be provided timely by those skilled in the art.

Disclosure of Invention

The invention aims to provide a single main shaft module, a carrying mechanism and automatic assembling equipment, wherein the single main shaft module can realize that a plurality of moving assemblies which can move independently are suspended on a main shaft, so that the structure can be simplified, the working efficiency is improved, and the cost is saved.

In order to achieve the above object, the present invention provides a single spindle module, which includes a fixed spindle and at least two moving assemblies disposed on the fixed spindle, wherein any one of the moving assemblies is mounted on the fixed spindle through a ball bearing, and balls are disposed between the ball bearing and the fixed spindle to form a ball screw assembly, and the single spindle module further includes a rotation driving mechanism which is connected with the ball bearings in a one-to-one correspondence manner and provides rotation power.

Optionally, the rotation driving mechanism includes a driving motor and a synchronous pulley mechanism, the driving motor is connected with a first wheel of the synchronous pulley mechanism, and a second wheel of the synchronous pulley mechanism is sleeved on the outside of the fixed main shaft and connected with the ball bearing.

Optionally, a mounting seat for fixedly mounting the driving motor is arranged above the ball bearing.

Optionally, the second wheel is provided with a first connecting hole, the inner ring of the ball bearing is provided with a second connecting hole, and the detachable connecting piece is matched and connected with the first connecting hole and the second connecting hole and used for locking and fixing the second wheel and the inner ring.

Optionally, both sides of the fixed main shaft are provided with supporting plates, any one of the supporting plates is provided with a linear guide rail, and the moving assembly is connected to the linear guide rail through a sliding block in a sliding manner.

Optionally, a base is arranged at the bottom of the moving assembly, and two sliding blocks are fixedly connected to the bottom of the base.

Optionally, a bottom plate is arranged at the bottom of the supporting plate, and two ends of the fixed main shaft are fixedly connected to the bottom plate through fixing seats.

The invention also provides a carrying mechanism which comprises the single-spindle module.

Optionally, the moving assembly is provided with a suction disc assembly, and at least two suction disc assemblies are located on the same side of the fixed main shaft.

The invention also provides automatic assembly equipment which comprises the carrying mechanism.

Compared with the background art, the single-spindle module provided by the embodiment of the invention comprises at least two fixed spindles and at least two moving assemblies, wherein the at least two moving assemblies are arranged on the fixed spindles, further, any one moving assembly is arranged on the fixed spindles through a ball bearing, balls are arranged between the ball bearing and the fixed spindles to form a ball screw assembly, and the single-spindle module further comprises a rotary driving mechanism, the rotary driving mechanism is connected with the ball bearings in a one-to-one corresponding mode, and the rotary driving mechanism is used for providing rotary power. That is, the fixed main shaft is fixed and provides a rotary power through the rotary driving mechanism to drive the moving component arranged on the ball bearing to move linearly. Therefore, compared with the traditional arrangement mode that two moving assemblies on one main shaft cannot move independently or two main shafts drive two moving assemblies to move respectively, the single main shaft module provided by the embodiment of the invention can arrange at least two moving assemblies capable of moving independently on one fixed main shaft, so that one main shaft can be saved, the integral structure is simplified and the production cost is reduced; on the other hand, because the traditional three-axis module is greatly wasted in working efficiency, particularly, the module has a long moving distance and is used for moving the module for a large part of time, the single-spindle module provided by the embodiment of the invention is additionally provided with at least two independent extension motions on a single spindle, for example, two or more Z-axis extension motions can be connected on one spindle, and each moving assembly can independently perform moving and transferring work along the Z axis, so that the working efficiency can be greatly improved, and meanwhile, the waste of the effective duty ratio of equipment can be avoided.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a single spindle module according to an embodiment of the present invention;

FIG. 2 is a schematic view of the mounting of the stationary spindle of FIG. 1;

FIG. 3 is a schematic view of the assembly of the rotary drive mechanism, the stationary spindle, the support plate and the moving assembly of FIG. 1;

FIG. 4 is a schematic view of an assembly structure of the rotary driving mechanism, the fixed main shaft, the supporting plate and the ball bearing in FIG. 3;

fig. 5 is a schematic view of an assembly structure of the rotary drive mechanism, the fixed main shaft and the ball bearing in fig. 4.

Wherein:

the device comprises a rotary driving mechanism 1, a driving motor 11, a synchronous pulley mechanism 12, a first wheel 121, a second wheel 122, a mounting seat 2, a fixed main shaft 3, a ball bearing 4, a moving assembly 5, a supporting plate 6, a linear guide 7, a bottom plate 8 and a fixed seat 9.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The core of the invention is to provide a single main shaft module, a carrying mechanism and automatic assembly equipment, wherein the single main shaft module can realize that a plurality of moving components which can move independently are suspended on a main shaft, so that the structure can be simplified, the working efficiency is improved, and the cost is saved.

In order that those skilled in the art will better understand the disclosure, the invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

It should be noted that the following directional terms such as "upper end, lower end, left side, right side" and the like are defined based on the drawings of the specification.

Referring to fig. 1 to 5, fig. 1 is a schematic structural diagram of a single spindle module according to an embodiment of the present invention; FIG. 2 is a schematic view of the mounting of the stationary spindle of FIG. 1; FIG. 3 is a schematic view of the assembly of the rotary drive mechanism, the stationary spindle, the support plate and the moving assembly of FIG. 1; FIG. 4 is a schematic view of an assembly structure of the rotary driving mechanism, the fixed main shaft, the supporting plate and the ball bearing in FIG. 3; fig. 5 is a schematic view of an assembly structure of the rotary drive mechanism, the fixed main shaft and the ball bearing in fig. 4.

The single-spindle module provided by the embodiment of the invention comprises a fixed spindle 3 and at least two moving assemblies 5, wherein the moving assemblies 5 are arranged at least two, and the at least two moving assemblies 5 are arranged on the fixed spindle 3.

Further, any moving assembly 5 is mounted on the fixed main shaft 3 through a ball bearing 4, and balls are arranged between the ball bearing 4 and the fixed main shaft 3 to form a ball screw assembly, wherein the fixed main shaft 3 serves as a screw in the ball screw assembly.

In addition, the device also comprises a rotary driving mechanism 1, wherein the rotary driving mechanism 1 is connected with the ball bearings 4 in a one-to-one correspondence mode, and the rotary driving mechanism 1 is used for providing rotary power. The screw rod (fixed main shaft 3) is fixed, so that the rotary motion is converted into the linear motion.

That is, the fixed main shaft 3 is fixed and the rotary driving mechanism 1 provides rotary power to drive the moving assembly 5 provided on the ball bearing 4 to move linearly.

Of course, the moving component 5 can be a Z-axis moving component in a three-axis moving module according to actual requirements. The three-axis moving module is a common structure in the mechanical field.

Therefore, compared with the traditional arrangement mode that two moving assemblies 5 on one main shaft cannot move independently or two main shafts respectively drive two moving assemblies 5 to move, the single-main-shaft module provided by the embodiment of the invention can arrange at least two moving assemblies 5 capable of moving independently on one fixed main shaft 3, so that one main shaft can be saved, the whole structure can be simplified and the production cost can be reduced; on the other hand, because the traditional three-axis module is greatly wasted in working efficiency, particularly, the module has a long moving distance and is used for moving the module for a large part of time, the single-spindle module provided by the embodiment of the invention is additionally provided with at least two independent extension motions on a single spindle, for example, two or more Z-axis extension motions can be connected on one spindle, and each moving assembly 5 can independently perform moving and transferring work along the Z-axis, so that the working efficiency can be greatly improved, and meanwhile, the waste of the effective duty ratio of equipment can be avoided.

Preferably, in this context, the number of moving assemblies 5 is two, the two moving assemblies 5 being arranged opposite each other on the stationary spindle 3.

Specifically, the rotary driving mechanism 1 includes a driving motor 11 and a synchronous pulley mechanism 12, the synchronous pulley mechanism 12 includes a first pulley 121 (driving pulley), a second pulley 122 (driven pulley) and a synchronous belt, the synchronous belt is connected with the first pulley 121 and the second pulley 122 in a matching manner, the driving motor 11 is connected with the first pulley 121 of the synchronous pulley mechanism 12, the second pulley 122 of the synchronous pulley mechanism 12 is sleeved outside the fixed main shaft 3, and the second pulley 122 is connected with the inner ring of the ball bearing 4.

Thus, under the driving action of the driving motor 11, the first wheel 121 transmits the motion and power of the driving motor 11 to the synchronous belt, the synchronous belt drives the second wheel 122 to rotate, the second wheel 122 drives the inner ring of the ball bearing 4 to rotate, because the balls are arranged between the inner ring of the ball bearing 4 and the fixed spindle 3, and the inner ring and the fixed spindle 3 are combined into a ball screw assembly, the inner ring can spirally move along the fixed spindle 3, and at this time, the outer ring of the ball bearing 4 and the moving assembly 5 can linearly move along the fixed spindle 3.

Obviously, for the convenience of assembly, the inner ring of the ball bearing 4 and the fixed main shaft 3 are both processed with arc-shaped spiral grooves, when the inner ring of the ball bearing 4 and the fixed main shaft 3 are sleeved together, a spiral raceway is formed, and the raceway is filled with balls, and when the inner ring rotates relative to the fixed main shaft 3, axial displacement occurs between the inner ring and the fixed main shaft. Meanwhile, the balls can roll along the raceway to reduce friction resistance, and after the balls roll on the fixed main shaft 3 for a plurality of circles, the balls roll back to a position between the inner ring and the fixed main shaft 3 one by one through a return guide device (ball returning device) to form a closed loop pipeline.

In order to realize the linkage of the second wheel 122 of the synchronous pulley mechanism 12 and the inner ring of the ball bearing 4, the second wheel 122 is provided with a first connecting hole, the inner ring of the ball bearing 4 is provided with a second connecting hole, correspondingly, the synchronous pulley mechanism further comprises a detachable connecting piece, the detachable connecting piece is matched and connected with the first connecting hole and the second connecting hole, and the detachable connecting piece is used for locking and fixing the second wheel 122 and the inner ring. Of course, the connecting hole may be a threaded hole, and the detachable connecting member may be a locking bolt.

In order to facilitate the fixed installation of the driving motor 11, the mounting seat 2 is arranged above the ball bearing 4, and the mounting seat 2 is used for fixedly installing the driving motor 11.

In order to improve the stability of the movement of the moving component 5, support plates 6 are arranged on two sides of the fixed main shaft 3, a linear guide rail 7 is arranged on any one support plate 6, and the moving component 5 is connected to the linear guide rail 7 in a sliding mode through a sliding block. Thus, when the rotary drive mechanism 1 is powered up, the moving member 5 can slide along the linear guide 7.

Of course, according to actual needs, the bottom of the moving assembly 5 is provided with a base, and the bottom of the base is fixedly connected with two sliding blocks. The base is used to support the moving assembly 5.

In addition, for the convenience of fixing the main shaft 3 in a positioning manner, the bottom of the supporting plate 6 is provided with a bottom plate 8, and two ends of the main shaft 3 are fixedly connected to the bottom plate 8 through fixing seats 9. In this way, the two ends of the fixed main shaft 3 are fixed, and the position between the two ends of the fixed main shaft 3 in the length direction can be used for installing the movable assembly 5.

The below of bottom plate 8 is equipped with the stand, and on whole single main shaft module was fixed in automatic assembly equipment through two stands, the stand was used for supporting whole single main shaft module.

The invention also provides a carrying mechanism, which comprises the single spindle module described in the above embodiment.

This handling mechanism is applied to in the automatic assembly equipment, and handling mechanism is used for carrying the product, and wherein, removal subassembly 5 is equipped with the sucking disc subassembly, and two at least sucking disc subassemblies are located fixed main shaft 3's homonymy, and the sucking disc subassembly is used for absorbing the product and carries out the transport work along the Z axle direction.

The invention provides automatic assembling equipment which comprises the carrying mechanism described in the embodiment. The automatic assembling equipment further comprises a feeding machine, a lifting module, an assembling station and the like, and the carrying mechanism is used for sucking materials on the lifting module to the assembling station. Other parts of the automated assembly device can be referred to in the prior art and are not expanded herein.

It is noted that, in this specification, relational terms such as first and second, and the like are used solely to distinguish one entity from another entity without necessarily requiring or implying any actual such relationship or order between such entities.

The single spindle module, the carrying mechanism and the automatic assembling apparatus provided by the present invention are described in detail above. The principles and embodiments of the present invention are explained herein using specific examples, which are provided only to help understand the concepts of the present invention and the core concepts thereof. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.

Claims

1. The utility model provides a single main shaft module, its characterized in that, including fixed main shaft (3) with locate two at least removal subassemblies (5) on fixed main shaft (3), arbitrary removal subassembly (5) pass through ball bearing (4) install in on fixed main shaft (3), ball bearing (4) with be equipped with the ball between fixed main shaft (3) in order to form the ball screw subassembly, still include with ball bearing (4) one-to-one is connected and provides rotary power's rotation driving mechanism (1).

2. The single spindle module according to claim 1, wherein the rotary driving mechanism (1) comprises a driving motor (11) and a synchronous pulley mechanism (12), the driving motor (11) is connected with a first wheel (121) of the synchronous pulley mechanism (12), and a second wheel (122) of the synchronous pulley mechanism (12) is sleeved outside the fixed spindle (3) and connected with the ball bearing (4).

3. Single-spindle module according to claim 2, characterized in that a mounting seat (2) for fixedly mounting the drive motor (11) is provided above the ball bearing (4).

4. The single spindle module according to claim 2, wherein the second wheel (122) is provided with a first connection hole, and the inner ring of the ball bearing (4) is provided with a second connection hole, further comprising a detachable connection member coupled to the first connection hole and the second connection hole for locking the second wheel (122) and the inner ring.

5. Single-spindle module according to any one of claims 1 to 4, characterized in that the fixed spindle (3) is provided with support plates (6) on both sides, a linear guide (7) being provided on any one of the support plates (6), the moving assembly (5) being slidably connected to the linear guide (7) by means of a slide.

6. The single spindle module according to claim 5, wherein a base is provided at the bottom of the moving assembly (5), and two sliding blocks are fixed to the bottom of the base.

7. The single spindle module according to claim 5, wherein a bottom plate (8) is provided at the bottom of the supporting plate (6), and both ends of the fixed spindle (3) are fixedly connected to the bottom plate (8) through fixing seats (9).

8. A handling mechanism comprising a single spindle module according to any one of claims 1 to 7.

9. Handling mechanism according to claim 8, wherein said moving assembly (5) is provided with suction cup assemblies, at least two of said suction cup assemblies being located on the same side of said fixed spindle (3).

10. An automatic assembly machine, characterized in that it comprises a handling mechanism according to any one of claims 8-9.