CN210739130U

CN210739130U - Linear motion device

Info

Publication number: CN210739130U
Application number: CN201921258122.5U
Authority: CN
Inventors: 李洪超
Original assignee: SF Technology Co Ltd
Current assignee: SF Technology Co Ltd; SF Tech Co Ltd
Priority date: 2019-07-31
Filing date: 2019-07-31
Publication date: 2020-06-12
Anticipated expiration: 2029-07-31

Abstract

The utility model belongs to the technical field of linear motion equipment, especially, relate to a linear motion device, linear motion device includes: a support; the actuating mechanism comprises a frame, a driving part and a linear actuating part, wherein the frame is provided with a top surface and a bottom surface which are opposite, the frame is detachably arranged on the support, a part of the frame is embedded into the support, the driving part comprises a motor and an electric box which are arranged on the top surface of the frame, the electric box is provided with a control board which is electrically connected with the motor and controls the motor, the linear actuating part is arranged on the bottom surface of the frame, and the linear actuating part is in driving connection with an output shaft of the motor. The driving part and the linear executing part are respectively arranged on two sides of the frame, the frame is detachably arranged on the support, standardized assembly can be formed, maintenance and assembly of all parts can be facilitated, accordingly, assembly efficiency and interchangeability of the parts are improved, and electromechanical integration degree is improved.

Description

Linear motion device

Technical Field

The utility model belongs to the technical field of linear motion equipment, especially, relate to a linear motion device.

Background

The straight line module can be used to realize straight reciprocating motion, mountable at lathe or other processing environment, but current straight line module when setting up the product, need design a great deal of complex structure, like the frame of installation straight line module for deposit motor and other electrical equipment's electronic box etc. installation complex operation, the product is difficult to realize the standardization, can lead to installation and maintenance difficulty during extensive use.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a linear motion device aims at solving the linear motion equipment among the prior art and is difficult to the standardization installation, installation and the comparatively difficult technical problem of maintenance.

In order to achieve the above object, the utility model adopts the following technical scheme: a linear motion device comprising:

the bracket is of a hollow structure;

the actuating mechanism comprises a frame, a driving part and a linear actuating part, wherein the frame is provided with a top surface and a bottom surface which are opposite, the frame is detachably arranged on the support, a part of the frame is embedded into the support, the driving part comprises a motor and an electric box which are arranged on the top surface of the frame, the electric box is provided with a control board which is electrically connected with the motor and used for controlling the motor, the linear actuating part is arranged on the bottom surface of the frame, and the linear actuating part is in driving connection with an output shaft of the motor.

Further, the frame includes that the cross section personally submits the backup pad of rectangle and encloses and locates the curb plate of backup pad week side, the curb plate includes two first curb plates that set up relatively and two second curb plates that set up relatively, two first curb plate support respectively hold in the opposite both sides of support, two second curb plate partial embedding in the support, motor and electric box interval set up in the top surface of backup pad, sharp executive portion locates the bottom surface of backup pad.

Further, the linear execution part comprises a synchronous belt, a synchronous wheel, a linear guide rail and a sliding block, the linear guide rail is fixed on the bottom surface of the supporting plate, the synchronous wheel is connected with the output shaft of the motor, the synchronous wheel is meshed with the synchronous belt, the sliding block is connected with the linear guide rail in a sliding mode, the sliding block is connected and fixed with the synchronous belt, and the motor drives the sliding block to move linearly in a reciprocating mode on the linear guide rail through the synchronous wheel and the synchronous belt.

Furthermore, the bottom surface of the supporting plate is provided with a positioning groove matched with the linear guide rail, and the linear guide rail is embedded in the positioning groove and is fixedly locked on the supporting plate through a bolt.

Further, linear guide is provided with two, two linear guide is parallel to be laid in the bottom surface of backup pad, the slider includes two big sliders and a plurality of little sliders, two big slider symmetry is installed in the relative both sides of hold-in range installation piece, every demountable installation has at least two on the big slider little slider, each little slider respectively with correspond linear guide sliding connection, hold-in range installation piece with the hold-in range is fixed, two big slider is used for installing external equipment and is reciprocating linear motion in order to drive external equipment.

Furthermore, the synchronous belt mounting block and the large sliding blocks on the two sides jointly form a groove which is sunken towards the direction of the supporting plate.

Further, the synchronizing wheel comprises a first synchronizing wheel, a second synchronizing wheel and a third synchronizing wheel, the synchronizing belt comprises a first synchronizing belt and a second synchronizing belt, the first synchronizing wheel is fixed on the output shaft of the motor, the second synchronizing wheel is connected with the first synchronizing wheel through the first synchronizing belt, the third synchronizing wheel is connected with the fourth synchronizing wheel through the second synchronizing belt, a through hole is formed in the position, corresponding to the first synchronizing wheel, of the supporting plate, and the first synchronizing belt penetrates through the through hole.

Furthermore, a bearing seat is detachably mounted on the inner side of the second side plate close to the motor, a first transmission shaft is rotatably mounted on the bearing seat through a bearing, and the second synchronizing wheel and the third synchronizing wheel are mounted on the first transmission shaft; the bottom surface demountable installation of backup pad has the take-up pulley support, install the second transmission shaft on the take-up pulley support, the fourth synchronizing wheel install in on the second transmission shaft.

Further, the tensioning wheel support is installed on the supporting plate through an adjusting bolt, the linear motion device further comprises a synchronous belt tensioning assembly, the synchronous belt tensioning assembly comprises a pulling block, a nut and a connecting bolt, one end of the pulling block is nested on the second transmission shaft, the nut is fixed on the pulling block, the connecting bolt is in threaded connection with the nut, a rotating head is arranged at one end, far away from the nut, of the connecting bolt, the rotating head is exposed out of the frame, and the tensioning of the synchronous belt is achieved by screwing the rotating head when the adjusting bolt is loosened.

Furthermore, a strip-shaped hole is formed in the position, corresponding to the tensioning wheel support, of the supporting plate, the top of the tensioning wheel support is penetrated through the supporting plate and fixed with the supporting plate through the adjusting bolt, one end of the adjusting bolt abuts against the top surface of the supporting plate, and the tensioning wheel support can move along the strip-shaped hole when the adjusting bolt is loosened.

Further, the linear motion device further comprises a first-stage buffer mechanism and a second-stage buffer mechanism which are arranged on the inner side walls of the two second side plates, and the distance between the first-stage buffer mechanism and the sliding block is larger than the distance between the second-stage buffer mechanism and the sliding block.

Furthermore, the first-stage buffer mechanism and the second-stage buffer mechanism are respectively provided with two buffer mechanisms, and the two buffer mechanisms are diagonally arranged on the inner side walls of the two second side plates.

Further, the linear motion device further comprises two groups of photoelectric sensors electrically connected with a control panel in the electrical box, the two groups of photoelectric sensors are respectively installed on the first side plate through photoelectric sensor supports, each photoelectric sensor is located on the inner side of the first side plate, a shading sheet is arranged on one side, corresponding to the photoelectric sensor, of the sliding block, and the sliding block drives the shading sheet to move to the position of the photoelectric sensor and can trigger the photoelectric sensor.

Further, every group photoelectric sensor all includes the speed reduction trigger switch and the extreme position trigger switch that the interval set up, two extreme position trigger switch is located two speed reduction trigger switch's the outside, the slider drives the anti-dazzling screen motion is extremely when speed reduction trigger switch and extreme position trigger switch's position, can trigger respectively speed reduction trigger switch and extreme position trigger switch.

Further, the top surface of frame is equipped with motor housing and shell, motor housing covers and establishes the output shaft of motor, the shell includes at least to cover establishes the upper casing at electrical box top and sealing connection in the end shell at upper casing both ends, two the end shell respectively demountable installation in on the frame, one of them the end shell cover establish the motor with the motor housing, another the end shell cover establish the frame expose in the part of electrical box.

The utility model has the advantages that: the linear motion device of the utility model has the advantages that the driving part and the linear executing part are respectively arranged at the two sides of the frame, the motor and the electric box are arranged at the top surface of the frame, the linear executing part is arranged at the bottom surface of the frame, the electromechanical integration degree can be improved, and the linear motion device forms an electromechanical integrated structure; the frame is detachably mounted on the support, the driving part and the linear execution part can be mounted on the frame firstly when products are assembled, the assembly of the execution mechanism is completed, the frame is mounted on the support, the assembly is convenient, planned assembly can be formed, maintenance and assembly of all parts can be facilitated, the assembly efficiency and interchangeability of the parts are improved, the frame can be taken down from the support when the parts are maintained or replaced, and the maintenance and replacement operations are convenient.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive labor.

Fig. 1 is a schematic perspective view of a linear motion device according to an embodiment of the present invention;

FIG. 2 is a side view of the linear motion device of FIG. 1;

FIG. 3 is a perspective view of the linear motion device of FIG. 1 shown in a removed position with the bracket and the electrical enclosure;

FIG. 4 is an enlarged view of portion A of FIG. 3;

FIG. 5 is a longitudinal sectional view of the linear motion device shown in FIG. 3;

FIG. 6 is a first perspective view of the linear motion device shown in FIG. 3;

FIG. 7 is a second perspective view of the linear motion device shown in FIG. 3;

fig. 8 is a schematic perspective view of a linear motion device according to an embodiment of the present invention;

fig. 9 is a schematic perspective view of a linear motion device according to another embodiment of the present invention.

Wherein, in the figures, the respective reference numerals:

100-support 110-engaging lug 200-frame

210-support plate 220-side plate 211-support bar

212-strip hole 221-first side plate 222-second side plate

201-first level buffer mechanism 202-second level buffer mechanism 230-bottom plate

310-motor 320-electric box 321-electric interface

322-heat dissipation hole 330-upper shell 341-first end shell

342-second end housing 343-motor housing 412-second synchronizing wheel

413 third synchronizing wheel 414 fourth synchronizing wheel 421 first synchronizing belt

422-second synchronous belt 430-bearing seat 431-first transmission shaft

440-sliding block 441-big sliding block 442-synchronous belt mounting block

443-small slide block 450-linear guide rail 500-tension wheel support

501-top plate 502-side plate 503-adjusting long hole

510-second drive shaft 520-connecting bolt 530-rotating head

540-adjusting bolt 600-photoelectric sensor support.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present 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 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 invention, "a plurality" means two or more unless specifically limited otherwise.

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

As shown in fig. 1 to 3, an embodiment of the present invention provides a linear motion device, which includes a support 100 and an actuator. The support 100 has a hollow structure, the support 100 has a substantially rectangular structure as a whole, and the two ends of the support 100 in the length direction respectively have engaging lugs 110, so that the linear motion device can be mounted on a machine tool or other equipment through the engaging lugs 110 and bolts at the two ends. The actuator includes a frame 200, a driving part and a linear actuator, the frame 200 having a width substantially equal to that of the bracket 100 and a length less than that of the hollow part of the bracket 100, the frame 200 having opposite top and bottom surfaces, the frame 200 being detachably mounted to the bracket 100 and partially embedded in the bracket 100, the frame 200 being bolt-mounted to the bracket 100. The driving part comprises a motor 310 and an electric box 320 which are arranged on the top surface of the frame 200, the electric box 320 is provided with a control board which is electrically connected with the motor 310 and controls the motor 310, the linear executing part is arranged on the bottom surface of the frame 200 and is in driving connection with the output shaft of the motor, and the starting and the closing of the motor 310 and the rotating speed can be controlled through the control board in the electric box 320. One side of the electrical box 320 may be provided with a plurality of electrical interfaces 321 and heat dissipation holes 322, and the width of the electrical box 320 is substantially equal to the width of the frame 200. The driving part and the linear executing part are arranged on two sides of the frame 200, and the frame 200 is detachably arranged on the bracket 100, so that the maintenance and the assembly of components are convenient, the assembly efficiency and the interchangeability of the components are improved, and the electromechanical integration degree is improved.

In the linear motion device provided by the embodiment, the driving part and the linear actuating part are respectively installed at two sides of the frame 200, the motor 310 and the electric box 320 are installed at the top surface of the frame 200, the linear actuating part is installed at the bottom surface of the frame 200, so that the electromechanical integration degree can be improved, and the linear motion device forms an electromechanical integrated structure; the frame 200 is detachably mounted on the support 100, the driving part and the linear execution part can be mounted on the frame 200 firstly when the product is assembled, the assembly of the execution mechanism is completed, and then the frame 200 is mounted on the support 100, so that the assembly is convenient, the planned assembly can be formed, the maintenance and the assembly of each part can be facilitated, the assembly efficiency and the interchangeability of the parts are improved, the frame can be taken down from the support when the parts are maintained or replaced, and the maintenance and replacement operation is convenient.

In an embodiment, as shown in fig. 1 and fig. 3, the frame 200 includes a supporting plate 210 and a side plate 220, the supporting plate 210 has a rectangular cross section, the side plate 220 is disposed around the supporting plate 210, the side plate 220 includes two first side plates 221 disposed oppositely and two second side plates 222 disposed oppositely, the two first side plates 221 respectively abut against two opposite sides of the bracket 100, the two first side plates 221 are respectively fixed with the bracket 100 by screws, and the two second side plates 222 are partially embedded in the bracket 100. Frame 200 may be welded as a single piece or as sheet metal. The motor 310 and the electric box 320 are spaced apart from each other on the top surface of the support plate 210 (the top surface of the frame 200), and the linear actuator is disposed on the bottom surface of the support plate 210 (the bottom surface of the frame 200). When the driving portion and the straight line on the frame 200 need to be partially repaired and replaced, the screws on the two first side plates 221 are loosened.

In one embodiment, the linear actuator includes a timing belt, a timing wheel, a linear guide 450, and a slider 440. The linear guide 450 is fixed on the bottom surface of the supporting plate 210, the synchronizing wheel is connected with the output shaft of the motor, the synchronizing wheel is meshed with the synchronous belt, the sliding block 440 is connected with the linear guide 450 in a sliding manner, the sliding block 440 is connected and fixed with the synchronous belt, the motor 310 drives the sliding block 440 to do reciprocating linear motion on the linear guide 450 through the synchronizing wheel and the synchronous belt, and the sliding block 440 is used for installing an external device so as to drive the external device to do reciprocating linear motion. The external device may be, but not limited to, a detection device or a handling device, for example, the external device with a handling robot is installed on the bottom surface of the sliding block 440, and the sliding block 440 may drive the external device to move when reciprocating on the linear guide rail, so as to grab and handle the object at one end to the other end.

The motor 310 may be mounted on the top surface of the supporting plate 210 through a motor 310 seat, and the electrical box 320 may be mounted on the supporting plate 210 through two hollow supporting bars 211 and screws spaced apart from each other on the top surface of the supporting plate 210, and each screw may be screwed from the bottom surface of the supporting plate 210 during detachment.

In an embodiment, the bottom surface of the supporting plate 210 is provided with a positioning groove (not shown) adapted to the linear guide 450, the arrangement direction of the linear guide 450 is parallel to the length direction of the frame 200, the linear guide 450 is adapted to be embedded in the positioning groove and is locked to the supporting plate 210 by a bolt, and the positioning groove can improve the assembly accuracy of the linear guide 450.

In an embodiment, as shown in fig. 6 and 7, two linear guide rails 450 are provided, the two linear guide rails 450 are arranged in parallel on the bottom surface of the supporting plate 210, each slider 440 includes two large sliders 441 and two sets of small sliders, the two large sliders 441 are symmetrically installed on two opposite sides of the synchronous belt installation block 442, each set of small sliders at least includes two small sliders 443 arranged at intervals, for example, two or three or more small sliders arranged at intervals, at least two small sliders 443 are detachably installed on each large slider 441, each small slider 443 is respectively connected with the corresponding linear guide rail 450 in a sliding manner, the synchronous belt installation block 442 is fixed with a synchronous belt, and the two large sliders 441 are used for installing an external device to drive the external device to make a reciprocating linear motion. That is, the two large sliding blocks 441 are slidably mounted on the two linear guide rails 450 through the two sets of small sliding blocks 443, the two large sliding blocks 441 are fixed on the timing belt through the timing belt mounting block 442, and the timing belt drives the large sliding blocks 441 to move when rotating. The bottom surface of the synchronous belt mounting block 442 can be provided with a mounting groove with a width adapted to the synchronous belt, a groove wall of the mounting groove facing the synchronous belt can be provided with a fixing tooth meshed with the synchronous belt, a sealing cover is mounted on the bottom surface of the synchronous belt mounting block 442 through a screw, the sealing cover fixes the synchronous belt mounting block 442 on the synchronous belt, and the whole sliding block 440 can rotate along with the synchronous belt.

Each large sliding block 441 is slidably assembled through two small sliding blocks 443 slidably mounted on the linear guide 450, so that the torsion resistance of the large sliding block 441 is improved.

In an embodiment, the synchronous belt mounting block 442 and the large sliding blocks 441 at two sides together form a concave groove which is concave towards the direction of the supporting plate 210, so that the whole sliding block 440 is of a structure which is concave in the middle, the whole weight of the sliding block is greatly reduced, the weight of a linear execution part is reduced, the inertia during movement is correspondingly reduced, and the dynamic performance of the device is improved.

In an embodiment, as shown in fig. 5 to 7, the synchronizing wheel includes a first synchronizing wheel (not shown), a second synchronizing wheel 412 and a third synchronizing wheel 413, the synchronizing belt includes a first synchronizing belt 421 and a second synchronizing belt 422, the first synchronizing wheel is fixed on the output shaft of the motor, the second synchronizing wheel 412 is connected to the first synchronizing wheel through the first synchronizing belt 421, the third synchronizing wheel 413 is connected to the fourth synchronizing wheel 414 through the second synchronizing belt 422, a through hole is formed in the support plate 210 corresponding to the first synchronizing wheel, and the first synchronizing belt 421 penetrates through the through hole. The axial direction of the output shaft of the motor is parallel to the width direction of the frame 200, the arrangement direction of the second synchronous belt 422 is parallel to the length direction of the frame 200, the first synchronous belt 421 realizes the transmission between the first synchronous wheel and the second synchronous wheel 412, and the second synchronous belt 422 realizes the transmission between the third synchronous wheel 413 and the fourth synchronous wheel 414. Each synchronous wheel and each synchronous belt are all accommodated in the area enclosed by the frame 200 and the bracket 100, the whole structure is compact, and the occupied space is small. As shown in fig. 6 and 9, a bottom plate 230 may be installed between the two first side plates 221, the width of the bottom plate 230 is smaller than that of the bracket 100, the bottom plate 230 covers the second timing belt 422 and the timing belt installation block 442, a portion of the two large sliders 441 is exposed out of the bottom plate, the bottom surface of the bottom plate 230 and the exposed portion of the large sliders 441 are substantially located on the same plane, and the exposed portions of the large sliders 441 on the two sides may be installed with external devices through bolts.

In one embodiment, as shown in fig. 5 and 6, a bearing seat 430 is detachably mounted on an inner side of the second side plate 222 close to the motor 310, a first transmission shaft 431 is rotatably mounted on the bearing seat 430 through a bearing, and the second synchronizing wheel 412 and the third synchronizing wheel 413 are mounted on the first transmission shaft 431. A tensioning wheel bracket 500 is detachably mounted on the bottom surface of the supporting plate 210, a second transmission shaft 510 is mounted on the tensioning wheel bracket 500, and a fourth synchronizing wheel 414 is mounted on the second transmission shaft 510. The bearing seat 430 is accommodated in the frame 200, the axial line of the first transmission shaft 431 and the axial line of the second transmission shaft 510 are both parallel to the width direction of the frame 200, and the bearing seat 430 and the tensioning wheel bracket 500 are respectively arranged at two ends of the bottom of the frame 200.

In an embodiment, as shown in fig. 5 and 6, the tensioning wheel bracket 500 is mounted on the supporting plate 210 through an adjusting bolt 540, the linear motion device further includes a synchronous belt tensioning assembly, the synchronous belt tensioning assembly includes a pulling block, a nut (not shown) and a connecting bolt 520, one end of the pulling block is nested on the second transmission shaft 510, the nut is fixed on the pulling block, the connecting bolt 520 is in threaded connection with the nut, a rotating head 530 is disposed at one end of the connecting bolt 520, which is far away from the nut, the rotating head 530 is exposed out of the frame 200, and the tensioning of the synchronous belt is achieved by tightening the rotating head 530 when the adjusting bolt 540 is loosened. That is to say, the adjusting end of the rotating head 530 is located at the outer side of the second side plate 222, and twisting the rotating head 530 can drive the tensioning wheel bracket 500 to move, so that the adjusting operation is convenient, and the tensioning work of the synchronous belt after long-time use is facilitated.

When the synchronous belt needs to be tightened, the adjusting bolt 540 for fixing the tension pulley support 500 and the frame 200 is firstly loosened, the tension pulley support 500 is in a movable state at the moment, then the rotating head 530 is adjusted, and after the synchronous belt is tightened, the tightening of the synchronous belt is realized by tightening the adjusting bolt 540, so that the operation is convenient.

In an embodiment, as shown in fig. 4 and 5, a strip-shaped hole 212 is formed in the supporting plate 210 at a position corresponding to the tensioning wheel bracket 500, the top of the tensioning wheel bracket 500 penetrates through the supporting plate 210 and is fixed to the supporting plate 210 by an adjusting bolt 540, one end of the adjusting bolt 540 abuts against the top surface of the supporting plate 210, and the tensioning wheel bracket 500 can move along the strip-shaped hole 212 when the adjusting bolt 540 is loosened. When the adjusting bolts 540 are loosened, the tensioning wheel support 500 can move along the length direction of the support plate 210, when the synchronous belt tensioning adjustment operation is performed, the adjusting bolts 540 are loosened, then the rotating head 530 is screwed, the adjusting bolts 540 are screwed after the synchronous belt is tensioned to realize tensioning, then the adjusting bolts 540 are screwed, and the tensioning wheel support 500 is fixed on the support plate 210 again. In an embodiment, as shown in fig. 4 to 6, the tensioning wheel bracket 500 is a U-shaped bracket, and includes a top plate 501 and side plates 502 connected to two sides of the top, two bar-shaped holes 212 are formed in the support plate 210 of the side plate 502 along the length direction, the length of the bar-shaped hole 212 is greater than that of the side plate 502, the two side plates 502 are inserted into the corresponding bar-shaped holes 212 and extend into the bottom side of the frame 200, two adjusting long holes 503 are formed in the top plate 501 along the length direction, the length direction of the adjusting long hole 503 is parallel to the length direction of the bar-shaped hole 212, the two adjusting long holes 503 are located inside the two bar-shaped holes 212, two adjusting bolts 540 are inserted into each adjusting long hole 503, each adjusting bolt 540 is screwed with the support plate 210, and when each adjusting bolt 540 is.

In an embodiment, as shown in fig. 6 and 7, the linear motion device further includes a primary buffer 201 and a secondary buffer 202 disposed on inner sidewalls of the two second side plates 222, and a distance between the primary buffer 201 and the slider is greater than a distance between the secondary buffer 202 and the slider. When the large sliding block 441 cannot be immediately stopped due to inertia or other unexpected conditions, the large sliding block firstly impacts the first-stage buffer mechanism 201, and if the large sliding block impacts the first-stage buffer mechanism 201 and is not stopped, the large sliding block continues to impact the second-stage buffer mechanism 202, so that the safety during operation can be improved and the noise of equipment can be reduced by arranging a two-stage buffer structure.

In an embodiment, two primary buffer mechanisms 201 and two secondary buffer mechanisms 202 are respectively disposed, and the two primary buffer mechanisms 201 and the two secondary buffer mechanisms 202 are diagonally disposed on inner sidewalls of the two second side plates 222. That is to say, two sides of the inner side wall of one of the second side plates 222 are respectively provided with a first-stage buffer mechanism 201 and a second-stage buffer mechanism 202, two sides of the inner side wall of the other second side plate 222 are also respectively provided with a first-stage buffer mechanism 201 and a second-stage buffer mechanism 202, the first-stage buffer mechanisms 201 at two ends are arranged diagonally, and the second-stage buffer mechanisms 202 at two ends are also arranged diagonally. In one embodiment, the primary damping mechanism 201 is a hydraulic damper and the secondary damping mechanism 202 is a polyurethane damping block.

In an embodiment, as shown in fig. 1 to 3, the linear motion device further includes two sets of photo sensors (not shown) electrically connected to the control board in the electrical box 320, the two sets of photo sensors are respectively mounted on the first side plate 221 through a photo sensor bracket 600, each photo sensor is located inside the first side plate 221, a light shielding sheet (not shown) is disposed on a side of the slider corresponding to the photo sensor, and the slider drives the light shielding sheet to move to a position of the photo sensor to trigger the photo sensor. Photoelectric sensor support 600 accessible screw installation is on first curb plate 221, and in two sets of photoelectric sensor all imbedded frame 200, can avoid external dust pollution photoelectric sensor, influence its trigger performance.

In an embodiment, each group of the photoelectric sensors includes a deceleration trigger switch and a limit position trigger switch (not shown) which are arranged at intervals, the two limit position trigger switches are located at the outer sides of the two deceleration trigger switches, and the slide block drives the light shielding sheet to move to the positions of the deceleration trigger switch and the limit position trigger switch, so that the deceleration trigger switch and the limit position trigger switch can be triggered respectively. When the large sliding block 441 moves to the speed reduction trigger switch, the control panel controls the motor 310 to operate in a speed reduction mode, and when the large sliding block 441 moves to the limit position trigger switch, the control panel controls the motor 310 to stop operating, so that the operation stability can be improved.

In an embodiment, as shown in fig. 1 and 8, a motor housing 343 and a housing are disposed on a top surface of the frame 200, the motor housing 343 covers an output shaft of the motor, the housing includes an upper housing 330 covering at least a top of the electrical box 320 and end housings hermetically connected to two ends of the upper housing 330, the upper housing 330 can cover a top and a side of the electrical box 320, one side of the electrical box 320 having an electrical interface 321 and a heat dissipation hole 322 can be exposed, the two end housings are detachably mounted on the frame 200 through screws, the two end housings are a first end housing 341 and a second end housing 342, the first end housing 341 covers the motor 310 and the motor housing 343, and the second end housing 342 covers a portion of the frame 200 exposed to the electrical box 320. The motor 310 may be a cylindrical motor 310, and the motor 310 may be covered with a motor case. After the motor 310 and the electrical box 320 are installed, the motor housing 343 is then installed, the upper housing 330 is then installed, and then the two end housings are installed. Through setting up the end shell at the tip, also formed bilateral symmetry's structure when sealed motor 310, improved the bilateral symmetry nature of equipment, but two end shells and the corresponding side joint of epitheca form sealedly, and two end shell accessible fix with screw on frame 200 avoid the dust to get into motor 310, can prevent simultaneously that the staff from stretching into and causing the injury. As shown in fig. 1, 6, 8 and 9, after the motor 310, the electrical box 320, the synchronous wheel, the synchronous belt, the slider 440 and the synchronous belt tensioning assembly are installed on the frame 200, the bottom plate 230 is installed on the bottom side of the frame 200, the synchronous wheel and the synchronous belt are covered, the upper shell 330 and the end shells on both sides are installed on the frame 200, the frame 200 is installed on the bracket 100 through screws, the bracket 100 is installed at an operation position through the connecting lugs 110 on both sides, the external device is installed on the bottom surfaces of the two large sliders 441 through screws, the electrical interface 321 of the electrical box 320 is connected with a power source through a cable to complete the installation of the whole linear motion device, and after the motor 310 is started, the slider 440 is driven by the synchronous wheel synchronous belt to reciprocate on the linear guide 450 to drive the external device to reciprocate.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. A linear motion device, characterized by: the method comprises the following steps:

the bracket is of a hollow structure;

2. The linear motion device of claim 1, wherein: the frame includes the backup pad of the transversal rectangle of personally submitting and encloses and locates the curb plate of backup pad week side, the curb plate is including two first curb plates that set up relatively and two second curb plates that set up relatively, two first curb plate support respectively hold in the both sides that the support is relative, two second curb plate partial embedding in the support, motor and electric box interval set up in the top surface of backup pad, sharp executive component locates the bottom surface of backup pad.

3. The linear motion device of claim 2, wherein: the linear execution part comprises a synchronous belt, a synchronous wheel, a linear guide rail and a sliding block, the linear guide rail is fixed on the bottom surface of the supporting plate, the synchronous wheel is connected with the motor output shaft, the synchronous wheel is meshed with the synchronous belt, the sliding block is connected with the linear guide rail in a sliding mode, the sliding block is connected and fixed with the synchronous belt, and the motor drives the sliding block to reciprocate on the linear guide rail.

4. The linear motion device of claim 3, wherein: the bottom surface of the supporting plate is provided with a positioning groove matched with the linear guide rail, and the linear guide rail is matched and embedded in the positioning groove and is fixedly locked on the supporting plate through a bolt.

5. The linear motion device of claim 3, wherein: linear guide is provided with two, two linear guide is parallel to be laid in the bottom surface of backup pad, the slider includes two big sliders and a plurality of little sliders, two big slider symmetry is installed in the relative both sides of hold-in range installation piece, every demountable installation has at least two on the big slider little slider, each little slider respectively with correspond linear guide sliding connection, hold-in range installation piece with the hold-in range is fixed, two big slider is used for installing external equipment and is reciprocal linear motion in order to drive external equipment.

6. The linear motion device of claim 5, wherein: the synchronous belt mounting block and the large sliding blocks on the two sides jointly form a groove which is sunken towards the direction of the supporting plate.

7. The linear motion device of claim 5, wherein: the synchronous wheel comprises a first synchronous wheel, a second synchronous wheel, a third synchronous wheel and a fourth synchronous wheel, the synchronous belt comprises a first synchronous belt and a second synchronous belt, the first synchronous wheel is fixed on the output shaft of the motor, the second synchronous wheel is connected with the first synchronous wheel through the first synchronous belt, the third synchronous wheel is connected with the fourth synchronous wheel through the second synchronous belt, a through hole is formed in the position, corresponding to the first synchronous wheel, of the supporting plate, and the through hole is formed in the first synchronous belt in a penetrating mode.

8. The linear motion device of claim 7, wherein: a bearing seat is detachably mounted on the inner side of the second side plate close to the motor, a first transmission shaft is rotatably mounted on the bearing seat through a bearing, and the second synchronizing wheel and the third synchronizing wheel are mounted on the first transmission shaft; the bottom surface demountable installation of backup pad has the take-up pulley support, install the second transmission shaft on the take-up pulley support, the fourth synchronizing wheel install in on the second transmission shaft.

9. The linear motion device of claim 8, wherein: the take-up pulley support pass through adjusting bolt install in the backup pad, linear motion device still includes hold-in range tensioning subassembly, hold-in range tensioning subassembly is including drawing piece, nut and connecting bolt, the one end of drawing the piece is nested in on the second transmission shaft, the nut is fixed in draw on the piece, connecting bolt with nut threaded connection, connecting bolt keeps away from the one end of nut is equipped with the rotating head, the rotating head expose in the frame, adjusting bolt loosens the time through screwing up the rotating head is realized the tensioning of hold-in range.

10. The linear motion device of claim 9, wherein: the supporting plate is provided with a strip-shaped hole corresponding to the position of the tensioning wheel support, the top of the tensioning wheel support penetrates through the supporting plate and is fixed with the supporting plate through the adjusting bolt, one end of the adjusting bolt abuts against the top surface of the supporting plate, and the tensioning wheel support can move along the strip-shaped hole when the adjusting bolt is loosened.

11. The linear motion device of claim 3, wherein: the linear motion device further comprises a first-stage buffer mechanism and a second-stage buffer mechanism which are arranged on the inner side walls of the two second side plates, and the distance between the first-stage buffer mechanism and the sliding block is larger than that between the second-stage buffer mechanism and the sliding block.

12. The linear motion device of claim 11, wherein: the first-stage buffer mechanism and the second-stage buffer mechanism are respectively provided with two, and the first-stage buffer mechanism and the second-stage buffer mechanism are diagonally arranged on the inner side walls of the second side plates.

13. The linear motion device according to any one of claims 3 to 12, wherein: the linear motion device further comprises two groups of photoelectric sensors electrically connected with a control panel in the electric box, the photoelectric sensors are respectively installed on the first side plate through photoelectric sensor supports and located on the inner side of the first side plate, a shading sheet is arranged on one side, corresponding to each photoelectric sensor, of the sliding block, and the sliding block drives the shading sheet to move to the position of each photoelectric sensor and can trigger the photoelectric sensors.

14. The linear motion device of claim 13, wherein: every group photoelectric sensor all includes the speed reduction trigger switch and the extreme position trigger switch that the interval set up, two extreme position trigger switch is located two speed reduction trigger switch's the outside, the slider drives the anti-dazzling screen moves to when speed reduction trigger switch and extreme position trigger switch's position, can trigger respectively speed reduction trigger switch and extreme position trigger switch.

15. The linear motion device according to any one of claims 1 to 12, wherein: the top surface of frame is equipped with motor housing and shell, motor housing cover is established the output shaft of motor, the shell includes that at least the lid is established the epitheca at electric box top and sealing connection in the end shell at epitheca both ends, two end shell respectively demountable installation in on the frame, one of them end shell cover is established the motor reaches motor housing, another end shell cover is established the frame expose in the part of electric box.