CN115870925A - Expansion screw mounting device and expansion screw mounting method - Google Patents

Abstract

The invention relates to an expansion screw mounting device and an expansion screw mounting method. The ejection mechanism is connected with the secondary sleeve and used for driving the secondary sleeve to move from the initial position to the mounting position. The first rotary driving mechanism is connected with the sleeve assembly and used for driving the sleeve assembly to rotate. The expansion screw mounting device and the expansion screw mounting method ensure that a plurality of expansion screw mounting devices can be used in parallel, and further improve the mounting efficiency.

Description

Expansion screw mounting device and expansion screw mounting method

Technical Field

The invention relates to the technical field of automation equipment, in particular to an expansion screw mounting device and an expansion screw mounting method.

Background

In the field of electromechanical installation in the building industry, a large amount of work is concentrated in the installation and tightening steps of expansion screws, for example, in the installation of architectural decoration suspended ceilings, ventilation pipelines, fire pipelines and the like, a support is fixed on a ceiling through the expansion screws, the installation and tightening of the traditional expansion screws are mostly completed manually by workers, the work efficiency is low, the labor cost is high, and certain safety risks exist in the climbing operation. Some tightening mechanisms have been developed that automatically install the expansion screw.

Ventilating pipe and fire control pipeline's support generally needs a plurality of inflation screw to fix, in order to raise the efficiency and less repeated location number of times in the fixed bolster, generally many inflation screw tightening mechanism use in parallel, but traditional inflation screw tightening mechanism is when using in parallel, the condition that the mounting hole was not packed into to some inflation screws and some inflation screws in a plurality of inflation screws successfully appears, because the inflation screw installation is asynchronous this moment, can lead to the support of treating the installation to be buckled or warp, and then lead to the support unable use.

Disclosure of Invention

Therefore, the expansion screw mounting device and the expansion screw mounting method are needed, the problem that a mounted workpiece is bent due to asynchronous mounting can be avoided when a plurality of expansion screw mounting devices are used in parallel, the plurality of expansion screw mounting devices can be used in parallel, and the mounting efficiency is further improved.

In one aspect, the present application provides an expansion screw mounting device comprising:

a sleeve assembly including a primary sleeve and a secondary sleeve movably disposed within the primary sleeve, the secondary sleeve for retaining an expansion screw, the secondary sleeve having an initial position for receiving the expansion screw within the primary sleeve and an installed position for ejecting the expansion screw out of the primary sleeve;

the ejection mechanism is connected with the secondary sleeve and is used for driving the secondary sleeve to move from the initial position to the mounting position; and the number of the first and second groups,

the first rotary driving mechanism is connected with the sleeve assembly and used for driving the sleeve assembly to rotate.

The technical scheme of the application is further explained as follows:

in one embodiment, the inner wall of the primary sleeve is provided with a first limiting portion, the outer wall of the secondary sleeve is provided with a second limiting portion, and the first limiting portion and the second limiting portion are in sliding fit to enable the primary sleeve and the secondary sleeve to relatively axially slide and synchronously rotate.

In one embodiment, the ejection mechanism comprises a hammer component and a push rod, the push rod is connected with the secondary sleeve, and the hammer component is used for driving the push rod to move along the primary sleeve.

In one embodiment, one end of the push rod, which is close to the secondary sleeve, is provided with a magnetic part for adsorbing the expansion screw.

In one embodiment, the ejection mechanism further includes a limit switch electrically connected to the hammer assembly and the first rotary driving mechanism, and when the ejection mechanism drives the secondary sleeve to move to the installation position, the limit switch is triggered, so that the ejection mechanism stops driving the secondary sleeve and the first rotary driving mechanism drives the sleeve assembly to rotate.

In one embodiment, the hammer assembly comprises:

a first cylinder;

the counterweight block is connected with a piston rod of the first air cylinder; and (c) a second step of,

the ejector piece is arranged on the balancing weight and is right opposite to the push rod, and the ejector piece is used for hammering the push rod or separating from the push rod under the driving of the first air cylinder.

In one embodiment, the counterweight block is provided with a first blind hole, a first elastic member is arranged in the first blind hole, and a piston rod of the first air cylinder is inserted in the first blind hole and connected with the first elastic member.

In one embodiment, the sleeve assembly is removably coupled to the first rotary drive mechanism.

In one embodiment, the first rotary drive mechanism comprises:

a first motor for outputting a torque; and the number of the first and second groups,

a first transmission assembly connected to the first motor and the primary sleeve.

In one embodiment, the first transmission assembly has a first mounting surface and a second mounting surface which are opposite to each other, the sleeve assembly is arranged on the first mounting surface, the first motor and the ejection mechanism are arranged on the second mounting surface, and the ejection mechanism is opposite to the sleeve assembly.

In one embodiment, the first transmission assembly is provided with an avoidance hole penetrating through the first mounting surface and the second mounting surface, and at least part of the ejection mechanism penetrates through the avoidance hole to be connected with the secondary sleeve.

In one embodiment, at least one side of the sleeve component is provided with an electromagnetic piece for adsorbing a workpiece to be installed.

In another aspect, the present application further provides an expansion screw mounting method, including the steps of:

placing an expansion screw into a primary sleeve and inserting the expansion screw into a secondary sleeve at an initial position in the primary sleeve;

aligning the expansion screw with a pre-drilled mounting hole;

the ejection mechanism drives the secondary sleeve to move along the primary sleeve from the initial position to a mounting position, so that the expansion screw is ejected out of the primary sleeve and inserted into the mounting hole;

the first rotary driving mechanism drives the first-stage sleeve and the second-stage sleeve to rotate, and the second-stage sleeve screws the expansion screw into the mounting hole.

According to the expansion screw mounting device and the expansion screw mounting method, the first-stage sleeve and the second-stage sleeve are arranged, the first-stage sleeve is movably arranged in the second-stage sleeve, the expansion screw can be accommodated in the first-stage sleeve when the second-stage sleeve is at the initial position, so that the expansion screw is prevented from being exposed before mounting, after the expansion screw is aligned with a mounting hole which is drilled in advance, the second-stage sleeve is driven by the ejection mechanism to move to the mounting position from the initial position, the expansion screw is ejected out of the first-stage sleeve and penetrates into the mounting hole, the first-stage sleeve and the second-stage sleeve are driven by the first rotary driving mechanism to rotate, the expansion screw can be screwed down into the mounting hole, the automatic mounting of the expansion screw is realized, and the time and the labor are saved. And when a plurality of expansion screw installation device used simultaneously, because the expansion screw is hidden in the one-level sleeve before the installation, thereby in the installation, even some expansion screws have successfully inserted in the mounting hole and some expansion screws fail to insert in the mounting hole, fail to insert the mounting hole and still can hide in the one-level sleeve, thereby maintain the original state of waiting to install the work piece, avoided waiting to install the work piece top bend or pressure deformation, thereby guaranteed that a plurality of expansion screw installation device can use in parallel, further improved the installation effectiveness.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention.

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

FIG. 1 is a schematic view of an embodiment of an expansion screw mounting device;

FIG. 2 is a front view of the expansion screw mounting device shown in FIG. 1;

FIG. 3 is a cross-sectional view of the expansion screw mounting device shown in FIG. 2;

FIG. 4 is a schematic view of an embodiment of an expansion screw mounting device in an operating condition;

FIG. 5 is a schematic diagram of the effect of using multiple expansion screw mounting devices in parallel to cause a workpiece to be mounted to be bent;

FIG. 6 is a schematic diagram illustrating the effect of the parallel use of the expansion screw mounting device of the present application;

FIG. 7 is a cross-sectional view of a drive assembly according to one embodiment.

Description of reference numerals:

10. an expansion screw mounting means; 11. a sleeve assembly; 111. a primary sleeve; 112. a secondary sleeve; 12. an ejection mechanism; 121. a first cylinder; 122. a push rod; 1221. a magnetic member; 123. a balancing weight; 124. a top piece; 126. a guide post; 127. a limit switch; 128. a first blind hole; 129. a first elastic member; 13. a first rotary drive mechanism; 131. a first motor; 132. a first transmission assembly; 1321. a chassis; 1322. a drive sprocket; 1323. a driven sprocket; 1324. a ball bearing; 1325. a thrust bearing; 1326. a chain; 14. an electromagnetic member; 91. an expansion screw; 92. mounting holes; 93. and (5) a workpiece is to be installed.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

One aspect of the present application provides an expansion screw mounting device 10 for hammering an expansion screw 91 into a pre-drilled mounting hole 92 and tightening the nut of the expansion screw 10. Specifically, referring to fig. 1 to 4, the expansion screw mounting device 10 of an embodiment includes a sleeve assembly 11, an ejection mechanism 12, and a first rotation driving mechanism 13, wherein the sleeve assembly 11 includes a primary sleeve 111 and a secondary sleeve 112 movably disposed in the primary sleeve 111, the secondary sleeve 112 is used for holding the expansion screw 91, and the secondary sleeve 112 has an initial position for receiving the expansion screw 91 in the primary sleeve 111 and a mounting position for ejecting the expansion screw 91 out of the primary sleeve 111. The ejection mechanism 12 is connected to the secondary sleeve 112, and the ejection mechanism 12 is used for driving the secondary sleeve 112 to move from the initial position to the installation position. And the first rotary driving mechanism 13, the first rotary driving mechanism 13 is connected with the sleeve assembly 11, and the first rotary driving mechanism 13 is used for driving the sleeve assembly 11 to rotate.

Further, the expansion screw mounting device 10 of the present application may be used for mounting expansion screws 91 on various workpieces, such as an angle iron bracket for mounting a pipeline on a ceiling or a beam, generally, the angle iron bracket needs to be fixed to the ceiling by a plurality of expansion screws 91, and in order to improve the mounting efficiency and reduce the repeated positioning process, the expansion screw mounting device 10 may be provided in plurality, and the plurality of expansion screw mounting devices 10 may simultaneously mount the respective screws on the angle iron bracket.

Further, in the conventional expansion screw tightening mechanism, before the expansion screw 91 is installed, the expansion screw 91 is usually exposed outside the expansion screw tightening mechanism, and referring to fig. 5, when a plurality of expansion screw tightening mechanisms are used in parallel, some of the expansion screws may not be aligned with the mounting hole 92, so that some of the expansion screws 91 are successfully inserted into the mounting hole 92 and some of the expansion screws 91 are not inserted into the mounting hole 92, as shown in fig. 5, the expansion screws 91 which are not inserted into the mounting hole 92 may buckle or deform the workpiece 93 to be installed, so that the workpiece 93 to be installed cannot be used normally.

And the expansion screw installation device 10 of the application is through setting up one-level sleeve 111 and second grade sleeve 112, with one-level sleeve 111 movably setting up in second grade sleeve 112, and second grade sleeve 112 is when initial position, can make expansion screw 91 accomodate in one-level sleeve 111, thereby avoid making expansion screw 91 expose before the installation, and after expansion screw 91 aims at mounting hole 92 beaten in advance, through ejector mechanism 12 drive second grade sleeve 112 along one-level sleeve 111 from initial position removal to mounting position, expansion screw 91 is just being ejected one-level sleeve 111 and penetrated in mounting hole 92, at this moment drive one-level sleeve 111 and second grade sleeve 112 through first rotary driving mechanism 13 and rotate, can screw up expansion screw 91 to mounting hole 92 in, realized the automatic installation of expansion screw 91, labour saving and time saving.

And as shown in fig. 6, when a plurality of expansion screws on the same workpiece 93 are simultaneously installed, a plurality of expansion screw installation devices 10 are required to be simultaneously used, because the expansion screws 91 are hidden in the primary sleeve 111 before installation, the workpiece 93 can be attached to the installation surface in advance during installation, even if some expansion screws 91 are successfully inserted into the installation holes 92 and some expansion screws 91 are not inserted into the installation holes 92, the expansion screws 91 are still hidden in the primary sleeve 111 and the state of attaching the workpiece 93 to the installation surface is maintained, and the situation that the workpiece 93 is away from the installation surface during installation due to the expansion screws 91 extending out of the workpiece 93 before installation and the workpiece 93 is away from the installation surface as shown in fig. 5 is avoided, and when some expansion screws 91 are successfully inserted into the installation holes 92 and some expansion screws 91 are inserted into the installation holes 92, the expansion screws successfully inserted into the installation holes 92 drive a part of the workpiece 93 to move towards the installation surface, and the part of the workpiece is kept away from the installation surface so that the workpiece 93 is pressed and deformed. Therefore, the technical scheme of the application avoids the workpiece 93 from being bent or deformed by pressing, ensures that the expansion screw mounting devices 10 can be used simultaneously, and further improves the mounting efficiency.

Further, referring to fig. 3, the inner wall of the first-stage sleeve 111 is provided with a first limiting portion, the outer wall of the second-stage sleeve 112 is provided with a second limiting portion, the first limiting portion and the second limiting portion are in sliding fit to enable the first-stage sleeve 111 and the second-stage sleeve 112 to synchronously rotate and to relatively axially slide, preferably, the first limiting portion and the second limiting portion can both be splines, and the spline fit enables the first-stage sleeve 111 and the second-stage sleeve 112 to synchronously rotate and simultaneously enable the first-stage sleeve 111 to axially move along the second-stage sleeve 112. Further, the first limiting portion can also be a sliding groove arranged along the axial direction, and the second limiting portion can be a sliding block matched with the sliding groove. Or, the second limiting portion may also be a sliding groove arranged along the axial direction, and the first limiting portion may be a sliding block matched with the sliding groove. Because second grade sleeve 112 need can follow one-level sleeve 111 axial displacement and second grade sleeve 112 and one-level sleeve 111 need rotate in step, if make first rotary driving mechanism 13 direct drive second grade sleeve 112, the complexity of structure more will certainly, and the cooperation of first spacing portion and the spacing portion of second, secondary sleeve 112 has been restricted when having guaranteed that second grade sleeve 112 can follow one-level sleeve 111's axial displacement second grade sleeve 112 and the relative rotation between the sleeve, and then only need be through first rotary driving mechanism 13 one-level sleeve 111, can drive the second grade cover and rotate, second grade sleeve 112 rotates and drives expansion screw 91 and rotate, can screw up expansion screw 91 with in the mounting hole 92. Preferably, the inner wall of the secondary sleeve 112 is provided with a third position-limiting portion, and the third position-limiting portion is used for being matched with the nut of the expansion screw 91. Further, during the tightening of the expansion screw 91, the rotation speed of the sleeve assembly 11 is finally stopped from fast rotation to slow rotation, the fast rotation of the sleeve assembly 11 can fast pull the expansion screw 91, the slow rotation of the sleeve assembly 11 can slowly tighten the expansion screw 91 until the sleeve assembly 11 stops rotating after the expansion screw 91 is completely tightened, and once the sleeve assembly 11 stops rotating, it can be determined that the expansion screw 91 is tightened.

Further, the ejection mechanism 12 includes a hammer assembly and a push rod 122, the push rod 122 is connected to the secondary sleeve 112, and the hammer assembly is configured to drive the push rod 122 to move along the primary sleeve 111, so as to drive the secondary sleeve 122 to move, and further eject the expansion screw 91 into the mounting hole 92. Specifically, the hammering assembly transfers the hammering force to the expansion screw 91 by hammering the push rod 122 for multiple times, so that the expansion screw 91 is hammered into the mounting hole 92, and the expansion screw 91 can be firmly matched with the mounting hole 92 by hammering.

Further, referring to fig. 1 to 3, the hammering assembly includes a first cylinder 121, a weight 123, and a top member 124. Wherein the first drive is for outputting an impact force. A weight 123 is connected to the piston rod of the first cylinder 121, and the weight 123 serves to increase the weight of the top 124, thereby increasing the impact inertia of the top 124. The top piece 124 is arranged on the counterweight block 123, the top piece 124 is opposite to the push rod 122, the top piece 124 is used for hammering the push rod 122 or separating from the push rod 122 under the driving of the first air cylinder 121, so that the counterweight block 123 is driven by the first air cylinder 121, the top piece 124 moves close to or away from the push rod 122, the top piece 124 can hammer the push rod 122 or separate from the push rod 122, the push rod 122 drives the secondary sleeve member under the hammering of the top piece 124 to have an initial position to move to an installation position, and the expansion screw 91 can be hammered into the installation hole 92. Further, the hammering assembly further comprises a bottom plate, the bottom plate is fixed on the first air cylinder 121, the hammering assembly further comprises a guide post 126 arranged on the bottom plate, and the balancing weight 123 is movably sleeved on the guide post 126. The guide post 126 plays a role in limiting and guiding the jacking movement of the balancing weight 123, and the movement stability of the balancing weight 123 is ensured.

Further, referring to fig. 3, the counterweight 123 is opened with a first blind hole 128, the first blind hole 128 is provided with a first elastic member 129, and the piston rod of the first cylinder 121 is inserted into the first blind hole 128 and connected with the first elastic member 129. Preferably, the first elastic member 129 is a spring, the spring is sleeved on the piston rod of the first cylinder 121, one end of the spring is connected to the weight block 123, and the other end of the spring is connected to the piston rod of the first cylinder 121. The first elastic member 129 can enable the piston rod of the first cylinder 121 and the counterweight 123 to form elastic connection, so that impact damage to the first cylinder 121 in a hammering process of the counterweight 123 is avoided.

Further, one end of the push rod 122 near the secondary sleeve 112 is provided with a magnetic member 1221 for attracting the expansion screw 91. Preferably, the magnetic member 1221 extends into the secondary sleeve 112, and the expansion screw 91 is attracted by the magnetic member 1221, so that when the expansion screw 91 is inserted into the secondary sleeve 112, the expansion screw 91 is accurately positioned. Meanwhile, in the hammering process of the expansion screw 91, the expansion screw 91 can be connected and fastened with the push rod 122, the expansion screw 91 is prevented from moving in a dislocation manner in the hammering process, the expansion screw 91 can be accurately inserted into the mounting hole 92, after the expansion screw 91 is screwed into the mounting hole 92, the matching force of the expansion screw 91 and the mounting hole 92 is greater than the magnetic attraction force of the magnetic piece 1221 to the expansion screw 91, and at the moment, the magnetic piece 1221 can be separated from the expansion screw 91 by driving the expansion screw mounting device 10 to move towards the direction away from the expansion screw 91.

Further, the ejection mechanism 12 further includes a limit switch 127, the limit switch 127 is electrically connected to the hammer assembly and the first rotary driving mechanism 13, when the ejection mechanism 12 drives the secondary sleeve 112 to move to the installation position, the limit switch 127 is triggered, and at this time, the expansion screw 91 is fully ejected into the installation hole 92. The limit switch 127 sends out a control signal, and after the control module receives the control signal, the control module controls the ejection mechanism 12 to stop driving the secondary sleeve 112, and enables the first rotary driving mechanism 13 to drive the sleeve assembly 11 to rotate.

Referring to fig. 1 to 3, the first rotary drive mechanism 13 includes a first motor 131 and a first transmission assembly 132, wherein the first motor 131 is used for outputting torque. The first transmission assembly 132 connects the first motor 131 and the primary sleeve 111.

Preferably, referring to fig. 3 and 7, the first transmission assembly 132 includes a housing 1321, a driving sprocket 1322 disposed in the housing 1321, a driven sprocket 1323 and a chain 1326, the driving sprocket 1322 is connected to the first motor 131, the driven sprocket 1323 is connected to the primary sleeve 111, the chain 1326 is connected to the driving sprocket 1322 and the driven sprocket 1323, so that the driving sprocket 1322 is driven by the first motor 131 to rotate, and the chain 1326 drives the driven sprocket 1323 to rotate, thereby transmitting the torque to the sleeve assembly 11. Specifically, the movable sprocket is connected to the output shaft of the first motor 131 through a hexagonal shaft, and the driven sprocket 1323 is rotatably disposed in the housing 1321 through a ball bearing 1324 and a thrust bearing 1325, thereby ensuring that the driven sprocket 1323 can rotate at a low resistance. The driven sprocket 1323 is connected to the primary sleeve 111 by a flat key, thereby achieving torque transmission. Further, the number of teeth of the driven sprocket 1323 is greater than that of the driving sprocket 1322, so that the reduction ratio can be used to achieve the purpose of amplifying the output torque.

It should be noted that the first transmission assembly 132 is not limited to the above-mentioned form of the sprocket wheel cooperating with the chain 1326, and in other embodiments, the first transmission assembly 132 may also be a gear transmission or a synchronous belt transmission, which is not limited herein.

Further, the transmission assembly 132 has a first mounting surface and a second mounting surface opposite to each other, the socket assembly 11 is disposed on the first mounting surface, the first motor 131 and the ejection mechanism 12 are both disposed on the second mounting surface, and the ejection mechanism 12 is opposite to the socket assembly 11. Through the reasonable arrangement of the positions of the sleeve component 11, the ejection mechanism 12 and the first motor 131, the expansion screw mounting device 10 is ensured to be simple and reasonable in structure.

Further, the sleeve assembly 11 is detachably connected with the first rotary driving mechanism 13, so that different sleeve assemblies 11 can be replaced according to expansion screws 91 with different specifications, the expansion screw mounting device 10 can be compatible with the expansion screws 91 with various specifications, and the application range is expanded.

Further, the first transmission assembly 132 is provided with an avoiding hole penetrating through the first mounting surface and the second mounting surface, and at least a portion of the ejection mechanism 12 penetrates through the avoiding hole to be connected with the secondary sleeve 112. Specifically, in the present embodiment, the avoiding hole further penetrates the driven sprocket 1323, so that the push rod 122 can pass through the driven sprocket 1323 to slide back and forth without transmitting torque.

Further, referring to fig. 1 and 2, at least one side of the sleeve assembly 11 is provided with an electromagnetic member 14 for adsorbing the workpiece 93 to be mounted. For example, in this embodiment, the two sides of the sleeve assembly 11 are both provided with the electromagnets, and the electromagnets 14 can adsorb the workpiece 93 to be mounted through energization, so as to fix the workpiece 93 to be mounted, and prevent the workpiece 93 to be mounted from driving the expansion screw 91 to move by two during the installation of the expansion screw 91, thereby affecting the alignment of the expansion screw 91 with the mounting hole 92. After the expansion screw 91 is installed, the workpiece 93 to be installed and the electromagnetic part 14 can be easily separated through power failure, so that the permanent magnet is more labor-saving and convenient to use.

Further, the present application also provides an expansion screw installation method using the expansion screw installation device 10 of any one of the above embodiments. Specifically, the expansion screw mounting method of an embodiment includes the steps of:

s110: the expansion screw 91 is put into the primary sleeve 111, and the expansion screw 91 is inserted into the secondary sleeve 112 at the initial position in the primary sleeve 111.

Specifically, the inner wall of the secondary sleeve 112 is provided with a spline for engaging with the nut of the expansion screw 91, so that the nut of the expansion screw 91 can be driven to rotate synchronously. Further, after the previous expansion screw 91 is installed, and the sleeve may not be at the initial position, by inserting the expansion screw 91 to be installed into the secondary sleeve 112, the secondary sleeve 112 can be returned to the initial position by pressing the expansion screw 91, thereby ensuring that the expansion screw 91 is hidden in the sleeve before installation.

S120: the expansion screw 91 is aligned with the pre-drilled mounting hole 92.

Specifically, the expansion screw mounting device 10 may be moved manually or by machine so that the expansion screw 91 is aligned with the pre-drilled mounting hole 92.

S130: the ejector mechanism 12 drives the secondary sleeve 112 to move along the primary sleeve 111 from the initial position to the mounting position, so that the expansion screw 91 is ejected out of the primary sleeve 111 and penetrates into the mounting hole 92.

S140: the first rotary driving mechanism 13 drives the first-stage sleeve 111 and the second-stage sleeve 112 to rotate, and the second-stage sleeve 112 drives the expansion screw 91 to rotate and screws the expansion screw 91 into the mounting hole 92.

Specifically, during tightening of the expansion screw 91, the first rotary driving mechanism 13 drives the sleeve assembly 11 to stop at the last of a fast rotation and a slow rotation, the fast rotation of the sleeve assembly 11 can fast pull the expansion screw 91, the slow rotation of the sleeve assembly 11 can slowly tighten the expansion screw 91 until the sleeve assembly 11 stops rotating after the expansion screw 91 is completely tightened, and once the sleeve assembly 11 stops rotating, it can be determined that the expansion screw 91 is tightened. After the expansion screw 91 is tightened, the magnetic member 1221 is separated from the expansion screw 91 by manually or mechanically driving the expansion screw mounting device 10 to move away from the expansion screw 91.

According to the expansion screw mounting method, the first-stage sleeve 111 and the second-stage sleeve 112 are arranged, the first-stage sleeve 111 is movably arranged in the second-stage sleeve 112, the second-stage sleeve 112 is arranged at the initial position, the expansion screw 91 can be accommodated in the first-stage sleeve 111, exposure of the expansion screw 91 before mounting is avoided, after the expansion screw 91 is aligned to the mounting hole 92 which is drilled in advance, the second-stage sleeve 112 is driven by the ejection mechanism 12 to move from the initial position to the mounting position along the first-stage sleeve 111, the expansion screw 91 is ejected out of the first-stage sleeve 111 and penetrates into the mounting hole 92, the first-stage sleeve 111 and the second-stage sleeve 112 are driven by the first rotary driving mechanism 13 to rotate, the expansion screw 91 can be screwed into the mounting hole 92, automatic mounting of the expansion screw 91 is achieved, and time and labor are saved. And as shown in fig. 6, when a plurality of expansion screw mounting devices 10 are used in parallel, because the expansion screws 91 are hidden in the first-stage sleeve 111 before installation, in the installation process, even if some expansion screws 91 are successfully inserted into the installation holes 92 and some expansion screws 91 are not inserted into the installation holes 92, the expansion screws are still hidden in the first-stage sleeve 111 when not inserted into the installation holes 92, so that the original state of the workpiece 93 to be installed is maintained, the workpiece 93 to be installed is prevented from being bent or deformed, the plurality of expansion screw mounting devices 10 can be used in parallel, and the installation efficiency is further improved.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is specific and detailed, but not to be understood as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the invention.

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 to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature "under," "beneath," and "under" a second feature may be directly under or obliquely under the second feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

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 intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. As used herein, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like are for purposes of illustration only and do not denote a single embodiment.

Claims (13)

1. An expansion screw mounting device, comprising:

a sleeve assembly including a primary sleeve and a secondary sleeve movably disposed within the primary sleeve, the secondary sleeve for retaining an expansion screw, the secondary sleeve having an initial position for receiving the expansion screw within the primary sleeve and an installed position for ejecting the expansion screw out of the primary sleeve;

the ejection mechanism is connected with the secondary sleeve and is used for driving the secondary sleeve to move from the initial position to the mounting position; and the number of the first and second groups,

the first rotary driving mechanism is connected with the sleeve assembly and used for driving the sleeve assembly to rotate.

2. The expansion screw installation device according to claim 1, wherein the inner wall of the primary sleeve is provided with a first limiting portion, the outer wall of the secondary sleeve is provided with a second limiting portion, and the first limiting portion and the second limiting portion are in sliding fit so that the primary sleeve and the secondary sleeve can synchronously rotate and can relatively axially slide.

3. The expansion screw mounting device according to claim 1, wherein the ejection mechanism includes a hammer assembly and a push rod, the push rod being connected to the secondary sleeve, the hammer assembly being configured to drive the push rod along the primary sleeve.

4. The expansion screw mounting device according to claim 3, wherein a magnetic member for attracting the expansion screw is provided at one end of the push rod close to the secondary sleeve.

5. The expansion screw mounting device according to claim 3, wherein the ejection mechanism further comprises a limit switch electrically connected to the hammer assembly and the first rotary drive mechanism, the limit switch being triggered when the ejection mechanism drives the secondary sleeve to move to the mounting position, such that the ejection mechanism stops driving the secondary sleeve and the first rotary drive mechanism drives the sleeve assembly to rotate.

6. The expansion screw mounting device according to claim 3, wherein the hammer assembly comprises:

a first cylinder;

the counterweight block is connected with a piston rod of the first air cylinder; and the number of the first and second groups,

the ejector piece is arranged on the balancing weight and is right opposite to the push rod, and the ejector piece is used for hammering the push rod or separating from the push rod under the driving of the first air cylinder.

7. The expansion screw mounting device according to claim 6, wherein the weight member has a first blind hole, a first elastic member is disposed in the first blind hole, and a piston rod of the first cylinder is inserted into the first blind hole and connected to the first elastic member.

8. The expansion screw mounting device according to claim 1, wherein the sleeve assembly is removably connected to the first rotary drive mechanism.

9. The expansion screw mounting device of claim 1, wherein the first rotary drive mechanism comprises:

a first motor for outputting a torque; and (c) a second step of,

a first transmission assembly connected to the first motor and the primary sleeve.

10. The expansion screw mounting device according to claim 9, wherein the first transmission assembly has opposing first and second mounting surfaces, the bushing assembly is disposed on the first mounting surface, the first motor and the ejection mechanism are both disposed on the second mounting surface, and the ejection mechanism is opposite the bushing assembly.

11. The expansion screw mounting device according to claim 10, wherein the first transmission assembly is provided with an avoiding hole penetrating through the first mounting surface and the second mounting surface, and at least part of the ejection mechanism penetrates through the avoiding hole to be connected with the secondary sleeve.

12. The expansion screw mounting device according to claim 1, wherein at least one side of the sleeve assembly is provided with an electromagnetic member for attracting a workpiece to be mounted.

13. An expansion screw installation method is characterized by comprising the following steps:

placing an expansion screw into a primary sleeve and inserting the expansion screw into a secondary sleeve at an initial position in the primary sleeve;

aligning the expansion screw with a pre-drilled mounting hole;

the ejection mechanism drives the secondary sleeve to move along the primary sleeve from the initial position to an installation position, so that the expansion screw is ejected out of the primary sleeve and inserted into the installation hole;

the first rotary driving mechanism drives the first-stage sleeve and the second-stage sleeve to rotate, and the second-stage sleeve screws the expansion screw into the mounting hole.

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