CN210549775U

CN210549775U - Centering mechanism

Info

Publication number: CN210549775U
Application number: CN201921164794.XU
Authority: CN
Inventors: 蒋启权; 蒋禹
Original assignee: Ningbo Welding Intelligent Technology Co ltd
Current assignee: Ningbo Welding Intelligent Technology Co ltd
Priority date: 2019-07-23
Filing date: 2019-07-23
Publication date: 2020-05-19
Anticipated expiration: 2029-07-23

Abstract

The application relates to a centering mechanism, and belongs to the field of machining equipment. Centering mechanism, including base, drive assembly and centre gripping subassembly. The transmission assembly comprises a transmission rod body, a first sliding block and a second sliding block, the transmission rod body is rotatably supported on the base and comprises a first rod section and a second rod section which are distributed along the axial direction, the first sliding block is in transmission connection with the first rod section, and the second sliding block is in transmission connection with the second rod section. The first rod section and the second rod section are provided with external threads with opposite rotation directions, and the transmission rod body can drive the first sliding block and the second sliding block to synchronously move in opposite directions or back to back along the axial direction of the transmission rod body when rotating around the axis. The clamping assembly comprises a first clamping plate and a second clamping plate which are oppositely arranged, the first clamping plate is connected with the first sliding block, and the second clamping plate is connected with the second sliding block. The centering device can conveniently and quickly center the object, and has good centering effect.

Description

Centering mechanism

Technical Field

The application relates to the field of machining equipment, in particular to a centering mechanism.

Background

At present, the common mode of an object centering mechanism is to realize object centering by manually adjusting a tool clamp. In the process of centering the object, the clamp needs to be adjusted manually, and the time spent on adjusting the clamp is long, so that the labor intensity of the manual work is high, and the efficiency of centering the object is low.

SUMMERY OF THE UTILITY MODEL

An object of the application is to provide a centering mechanism, it can conveniently, fast carry out the centering to the article, and centering is effectual.

The embodiment of the application is realized as follows:

the embodiment of the application provides a centering mechanism, including base, drive assembly and centre gripping subassembly.

The transmission assembly comprises a transmission rod body, a first sliding block and a second sliding block, the transmission rod body is rotatably supported on the base, the transmission rod body comprises a first rod section and a second rod section which are distributed along the axial direction, the first sliding block is in transmission connection with the first rod section, the second sliding block is in transmission connection with the second rod section, the first rod section and the second rod section are provided with external threads with opposite rotation directions, and the transmission rod body can drive the first sliding block and the second sliding block to synchronously move in opposite directions or back to back along the axial direction of the transmission rod body when rotating around an axis.

The clamping assembly comprises a first clamping plate and a second clamping plate which are oppositely arranged, the first clamping plate is connected with the first sliding block, and the second clamping plate is connected with the second sliding block.

Among the above-mentioned technical scheme, first grip block and second grip block set up relatively and are connected with first slider and second slider respectively, because the drive rod body is around the axis when rotatory, can drive first slider and second slider in opposite directions or back of the body mutually in step along the axial of the drive rod body through first pole section and second pole section to make first grip block and second grip block also can follow the axial of the drive rod body and move in opposite directions or back of the body mutually in step under the drive effect of the drive rod body. When the object is centered, the object to be centered is placed between the first clamping plate and the second clamping plate, the first clamping plate and the second clamping plate synchronously move in opposite directions under the driving action of the transmission rod body until two sides of the object to be centered are respectively abutted by the first clamping plate and the second clamping plate, and therefore centering is achieved. Automatic centering is realized through the synchronous motion of first grip block and second grip block, and centering operation is convenient, quick, accurate. And the screw thread transmission mode of the transmission rod body has high accuracy, and is favorable for ensuring the motion synchronism of the first clamping plate and the second clamping plate.

In some optional embodiments, the first rod section and the second rod section are both configured as lead screws, the first slider is slidably sleeved on the first rod section and provided with an internal thread in transmission fit with the first rod section, and the second slider is slidably sleeved on the second rod section and provided with an internal thread in transmission fit with the second rod section.

Among the above-mentioned technical scheme, first pole section and second pole section adopt the form of lead screw to set up the screw rod cover of in-band screw thread correspondingly at first slider and second slider and carry out the transmission and connect, simple structure, the transmission is stable and the precision is higher.

In some optional embodiments, each group of clamping assemblies is matched with two groups of transmission assemblies, two ends of the first clamping plate in the length direction are respectively connected with the first sliding blocks of the two groups of transmission assemblies, and two ends of the second clamping plate in the length direction are respectively connected with the second sliding blocks of the two groups of transmission assemblies.

Among the above-mentioned technical scheme, every group centre gripping subassembly cooperates with two sets of drive assembly for both ends on the first grip block length direction and the both ends on the second grip block length direction all can cooperate with a set of drive assembly. The two ends of the first clamping plate in the length direction are driven, and the two ends of the second clamping plate in the length direction are driven, so that synchronous opposite or back-to-back movement is realized, and the first clamping plate and the second clamping plate move more stably; meanwhile, the two ends of each clamping plate in the length direction are connected with the sliding blocks, so that the stress is balanced, the centering object can be more firmly abutted, and the centering effect is better.

In some optional embodiments, the centering mechanism further includes a synchronous transmission member, and the synchronous transmission member is respectively in transmission connection with the transmission rod bodies of the two sets of transmission assemblies, so that the transmission rod bodies of the two sets of transmission assemblies can synchronously rotate.

Among the above-mentioned technical scheme, the setting up of synchronous transmission spare makes the drive rod body synchronous rotation of two sets of drive assembly, consequently only need drive the drive rod body of a set of drive assembly, just can realize two sets of drive assembly's transmission. Because the synchronous rate of the transmission rod body of two sets of transmission assembly is high for the motion at both ends on the first grip block length direction and the both ends on the second grip block length direction also has higher synchronous rate, and the operation is stable during centering operation.

In some optional embodiments, the centering mechanism further comprises a tensioning mechanism, the tensioning mechanism abuts against the synchronous transmission member, the tensioning mechanism is connected with the base, and the tensioning mechanism is configured to adjust the pressure between the synchronous transmission member and the transmission rod bodies of the two sets of transmission components.

Among the above-mentioned technical scheme, straining device is used for adjusting the pressure between the drive rod body of synchronous driving spare and two sets of drive assembly for the synchronous driving spare can keep better contact degree with the drive rod body of two sets of drive assembly, thereby guarantees that synchronous driving spare can realize the synchronous drive effect between the drive rod body to two sets of drive assembly steadily.

In some optional embodiments, the first clamping plate and the second clamping plate each include a supporting plate and at least one abutting member, the at least one abutting member is distributed at the top of the supporting plate along the radial direction of the transmission rod body, the distance from the supporting plate of the first clamping plate to the supporting plate of the second clamping plate is greater than the distance from the abutting member of the first clamping plate to the supporting plate of the second clamping plate, and the distance from the supporting plate of the second clamping plate to the supporting plate of the first clamping plate is greater than the distance from the abutting member of the second clamping plate to the supporting plate of the first clamping plate.

In the technical scheme, the supporting plate of the first clamping plate and the supporting plate of the second clamping plate are matched to support the object to be centered, and then the object to be centered is supported by the supporting piece of the first clamping plate and the supporting piece of the second clamping plate respectively to support two sides of the object to be centered so as to realize centering. Treat the centering article through the backup pad and support and can effectively avoid treating that the centering article interferes with the structure of centre gripping subassembly bottom. In use, the supporting plate of the first clamping plate and the supporting plate of the second clamping plate extend towards the direction close to the adjacent clamping plate relative to the abutting piece to form a supporting part, and the extending supporting part can also extend into an opening of a channel steel structure with a lateral opening to support, for example, a radiator with channel steel at two sides can be conveniently supported to effectively perform centering operation on the radiator.

In some optional embodiments, each abutting member comprises a fixing plate and an adjusting plate, the fixing plate is connected to the top of the supporting plate, the adjusting plate is detachably connected to the fixing plate, when the adjusting plate is connected to the fixing plate, the distance from the adjusting plate to the edge of the supporting plate on the inner side is smaller than the distance from the fixing plate to the edge of the supporting plate on the inner side, and the edge of the supporting plate on the inner side is the edge of the supporting plate on the side close to the adjacent supporting plate.

Among the above-mentioned technical scheme, because the regulating plate is less than the distance that the fixed plate is located inboard edge to the marginal distance that the backup pad is located inboard when connecting in the fixed plate, will support to hold the piece and set up to the mode that the connection can be dismantled to fixed plate and regulating plate, can adjust the effective support width of the backup pad of first grip block and the backup pad of second grip block through the installation with dismantle the regulating plate, especially can adjust the coincidence length of channel-section steel and backup pad effectively when supporting to the structure that has the channel-section steel, can adapt to the needs that support to the not unidimensional article better.

In some optional embodiments, the fixing plate is provided with a limiting slide rail, and the adjusting plate is provided with a limiting slide groove in sliding fit with the limiting slide rail.

Among the above-mentioned technical scheme, fixed plate and regulating plate cooperate through spacing slide rail and spacing spout, can conveniently install and dismantle.

In some optional embodiments, the base is provided with a support rail, and the bottom of each of the first clamping plate and the second clamping plate is slidably fitted with the support rail.

Among the above-mentioned technical scheme, support orbital setting and can be first grip block and second grip block effectively for the job stabilization nature of first grip block and second grip block is higher.

In some optional embodiments, the bottom of the first clamping plate and the bottom of the second clamping plate are both provided with a supporting chute matched with the supporting track.

Among the above-mentioned technical scheme, the support spout is seted up to the bottom of first grip block and second grip block bottom for with support track slidable ground cooperation, support spout and support orbital sliding fit have the guide effect, make the job stabilization nature and the precision of first grip block and second grip block higher.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained from the drawings without inventive effort.

FIG. 1 is a schematic structural view of a centering mechanism provided in an embodiment of the present application from one perspective;

FIG. 2 is a schematic structural view of a centering mechanism provided in an embodiment of the present application from another perspective;

FIG. 3 is a schematic view of a clamping assembly of a centering mechanism according to an embodiment of the present application from a single perspective;

FIG. 4 is a schematic structural view of another perspective of a clamping assembly of the centering mechanism according to an embodiment of the present application;

FIG. 5 is a schematic view of a first operating state of the centering mechanism according to an embodiment of the present application;

FIG. 6 is a schematic diagram of a second operating state of the centering mechanism according to an embodiment of the present application

Fig. 7 is an exploded view of a retainer of a clamping assembly of a centering mechanism according to an embodiment of the present application.

Icon: 100-a centering mechanism; 110-a base; 111-a support rail; 120-a transmission assembly; 121-a drive rod body; 122-a first slider; 123-a second slider; 131-a first clamping plate; 132-a second clamping plate; 133-a support chute; 134-a support plate; 135-a holding member; 1351-fixing plate; 1352-limiting slide rail; 1353-adjusting plate; 1354-a first adjustable plate body; 1355-a limit chute; 1356-installing a chute; 1357-a second adjustable plate body; 1358-mounting a sliding rail; 140-a synchronous drive; 150-a tensioning mechanism; 151-mounting plate; 152-bar-shaped mounting holes; 153-a tensioner; 160-a drive assembly; 161-drive motor; 162-coupling.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. 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 application.

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

In the description of the present application, it is noted that the terms "first", "second", and the like are used merely for distinguishing between descriptions and are not intended to indicate or imply relative importance.

The terms "upper," "inner," "outer," and the like, refer to an orientation or positional relationship based on that shown in the drawings, or that is conventionally used in the application of that product, for convenience and simplicity of description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be considered as limiting the present application.

Furthermore, the terms "vertical" and the like do not require absolute perpendicularity between the components, but merely indicate that the orientation is more horizontal than "parallel," and do not necessarily indicate that the structures are perfectly vertical, but may be slightly inclined.

In the description of the present application, it is also noted that the terms "disposed," "mounted," "connected," and the like are to be construed broadly unless otherwise specifically stated and limited. For example, the connection can be fixed, detachable or integrated; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.

Examples

Referring to fig. 1-2, an embodiment of the present application provides a centering mechanism 100, which includes a base 110, and a driving assembly 120 and a clamping assembly mounted on the base 110.

The driving assembly 120 includes a driving rod 121, a first slider 122 and a second slider 123. The transmission rod is rotatably supported on the base 110, the transmission rod body 121 includes a first rod section and a second rod section distributed along the axial direction, and the first rod section and the second rod section are provided with external threads with opposite rotation directions. The first slider 122 is in transmission connection with the first rod section, the second slider 123 is in transmission connection with the second rod section, and the transmission rod body 121 can drive the first slider 122 and the second slider 123 to synchronously move towards or away from each other along the axial direction of the transmission rod body 121 when rotating around the axis. It should be understood that the synchronous movement of the two in the embodiment of the present application, in the direction of the two moving towards each other or away from each other, does not only mean that the two move towards each other or away from each other at the same time, but also that the two move at the same distance. When the transmission rod is configured, the transmission rod body 121 with the same external thread specification of the first rod section and the second rod section is selected to ensure the synchronism of the movement of the first slider 122 and the second slider 123.

The clamping assembly comprises a first clamping plate 131 and a second clamping plate 132 which are oppositely arranged, the first clamping plate 131 is connected with the first sliding block 122, and the second clamping plate 132 is connected with the second sliding block 123. The first slider 122 and the second slider 123 drive the first clamping plate 131 and the second clamping plate 132 to synchronously move toward or away from each other along the axial direction of the driving rod body 121 under the driving action of the driving rod body 121.

The centering mechanism 100 provided by the embodiment of the application realizes automatic centering through synchronous motion of the first clamping plate 131 and the second clamping plate 132, and the centering operation is convenient, quick and accurate. And the driving rod body 121 drives the first slider 122 and the second slider 123 in a threaded engagement manner, so that the driving accuracy is high, and the movement synchronism of the first clamping plate 131 and the second clamping plate 132 is ensured.

In the embodiment of the present application, the driving rod 121 is rotatably supported on the base 110, for example, a rotating base is directly disposed on the base 110 for rotatably connecting with the driving rod 121, a rotating sleeve is further disposed on the base 110 for rotatably sleeving the driving rod 121 in the rotating sleeve, and the rotating sleeve is disposed for sleeving the driving rod 121, so as to provide a relatively stable working environment for the driving action of the driving rod 121 and the first and

second sliders

122 and 123, and make the driving action more stable. In the case where the rotating sleeve is provided, the rotating sleeve has a sliding opening extending in the axial direction of the drive rod body 121 for slidably cooperating with the first slider 122 and the second slider 123, so that the first slider 122 and the second slider 123 can move in the axial direction of the drive rod body 121. Since the first slider 122 and the second slider 123 need to be connected to the first clamping plate 131 and the second clamping plate 132, the sliding opening of the rotating sleeve extending along the axial direction of the driving rod body 121 can be optionally disposed on one side of the rotating sleeve close to the first clamping plate 131 and the second clamping plate 132.

Illustratively, the first rod segment and the second rod segment are both configured as lead screws, and the second rod segment is a right-handed lead screw when the first rod segment is a left-handed lead screw. The first slider 122 is connected to the first rod section in a transmission manner, and is configured as a screw sleeve, and the first slider 122 is slidably sleeved on the first rod section and is provided with an internal thread in transmission fit with the first rod section. The part of the second slider 123 in transmission connection with the second rod segment is also configured as a structure of the lead screw sleeve, and the second slider 123 is slidably sleeved on the second rod segment and is provided with an internal thread in transmission fit with the second rod segment. The screw rod and the screw rod sleeve are matched for transmission, the structure is simple, the transmission is stable, and the precision is high.

It is understood that, in the embodiment of the present application, the arrangement manner of the transmission rod body 121 is not limited to the form of the lead screw, as long as the structure capable of realizing the screw transmission is adopted. For example, the driving rod 121 is configured as a worm, and correspondingly, a gear, a rack, and the like are correspondingly disposed at a joint of the first slider 122 and the first rod segment and a joint of the second slider 123 and the second rod segment, the gear and the slider are rotatably connected and engaged with the worm, the rack is fixed to the slider and extends along the axial direction of the driving rod 121, and the gear and the rack are engaged to drive the slider to move.

In some alternative embodiments, each set of clamping assemblies may be engaged with one set of driving assemblies 120, i.e. only one end of the first clamping plate 131 and the second clamping plate 132 of the clamping assemblies in the length direction are in driving connection with the driving assemblies 120. The length direction of the first holding plate 131 and the second holding plate 132 in the embodiment of the present application refers to a direction perpendicular to the axial direction of the drive rod body 121. Exemplarily, under the condition of this arrangement, a guide assembly is arranged at the other end of the first clamping plate 131 and the second clamping plate 132 of the clamping assembly in the length direction, the guide assembly is provided with a sliding groove extending along the axial direction of the transmission rod body 121, and is used for being slidably connected with the other end of the first clamping plate 131 and the other end of the second clamping plate 132 in the length direction, and by guiding the other end of the first clamping plate 131 and the other end of the second clamping plate 132 in the length direction, the balance between the two ends of the first clamping plate 131 and the second clamping plate 132 in the length direction is facilitated, and the clamping and centering of the object to be centered can be better performed.

In some optional embodiments, each group of clamping assemblies may also cooperate with two groups of transmission assemblies 120, that is, the transmission assemblies 120 are disposed at both ends of the first clamping plate 131 and the second clamping plate 132 of the clamping assemblies in the length direction for transmission connection, in this arrangement, both ends of the first clamping plate 131 in the length direction are respectively connected with the first sliding blocks 122 of the two groups of transmission assemblies 120, and both ends of the second clamping plate 132 in the length direction are respectively connected with the second sliding blocks 123 of the two groups of transmission assemblies 120. The movement of the first clamping plate 131 and the second clamping plate 132 is more stable by driving at both ends of the first clamping plate 131 in the length direction and at both ends of the second clamping plate 132 in the length direction; meanwhile, the two ends of each clamping plate in the length direction are connected with the sliding blocks, so that the stress is balanced, the centering object can be more firmly abutted, and the centering effect is better.

Under the condition that be provided with two sets of drive assembly 120 and the clamping assembly and cooperate: two power mechanisms may respectively drive the transmission rod bodies 121 of the two sets of transmission assemblies 120 to synchronously rotate. Alternatively, a power mechanism may drive the driving rod 121 of one of the two sets of driving components 120 to rotate, and then the synchronous transmission member 140 is disposed to be in transmission connection with the driving rod 121 of the two sets of driving components 120, as shown in fig. 1 (not shown in fig. 2), so that the driving rod 121 of the two sets of driving components 120 can rotate synchronously, and the synchronous rate of the driving rod 121 of the two sets of driving components 120 is high, so that the motions of the two ends of the first clamping plate 131 in the length direction and the two ends of the second clamping plate 132 in the length direction also have a high synchronous rate, and the operation is stable during the centering operation.

The power mechanism is, for example, configured as a driving assembly 160, and the driving assembly 160 includes a driving motor 161 and a coupling 162, as shown in fig. 1, one end of the coupling 162 is in transmission connection with a power output shaft of the driving motor 161, and the other end of the coupling 162 is in transmission connection with the transmission rod body 121. Of course, in other embodiments, the coupling 162 may drive the driving rod 121 to rotate by providing power manually.

The synchronous transmission member 140 is configured as a transmission belt, a transmission chain, etc., and the transmission rod bodies 121 of the two sets of transmission assemblies 120 are correspondingly configured as pulleys for cooperating with the transmission belt or sprockets for cooperating with the transmission chain.

Further, in the embodiment where the synchronous transmission element 140 is arranged for transmission, the centering mechanism 100 further includes a tensioning mechanism 150, the tensioning mechanism 150 is connected to the base 110 and abuts against the synchronous transmission element 140, and the tensioning mechanism 150 is configured to adjust the pressure between the synchronous transmission element 140 and the transmission rod bodies 121 of the two sets of transmission assemblies 120. The tension mechanism 150 is provided to adjust the pressure between the synchronous transmission member 140 and the driving rod bodies 121 of the two sets of driving components 120, so that the synchronous transmission member 140 and the driving rod bodies 121 of the two sets of driving components 120 can maintain a better contact degree, thereby ensuring that the synchronous transmission member 140 can stably realize the synchronous transmission effect between the driving rod bodies 121 of the two sets of driving components 120.

Illustratively, referring to fig. 2, the tensioning mechanism 150 includes a mounting plate 151 and a tensioning wheel 153. The tension wheel 153 is rotatably disposed on the mounting plate 151, and the tension wheel 153 abuts against a portion of the synchronous transmission element 140 between the two transmission rod bodies 121, so that the synchronous transmission element 140 can be outwardly abutted on an inner side of the synchronous transmission element 140, and the synchronous transmission element 140 can be inwardly abutted on an outer side of the synchronous transmission element 140. The mounting plate 151 is adjustably fixed to the base 110, a strip-shaped mounting hole 152 is formed in the mounting plate 151, the fastener penetrates through the strip-shaped mounting hole 152 to fix the mounting plate 151 to the base 110, and the strip-shaped mounting hole 152 is arranged to facilitate adjustment of the position, at which the mounting plate 151 is fixed to the base 110, so that the tensioning degree of the tensioning wheel 153 to the synchronous transmission element 140 is adjusted, and the pressure between the synchronous transmission element 140 and the transmission rod bodies 121 of the two sets of transmission assemblies 120 is adjusted.

When the centering mechanism 100 provided by the embodiment of the application is used for centering different objects to be centered, the first clamping plate 131 and the second clamping plate 132 of the clamping assembly can be set to be corresponding structures according to the structural characteristics of the objects to be centered. For example, only when the object to be centered is placed on the first clamping plate 131 and the second clamping plate 132, the first clamping plate 131 and the second clamping plate 132 only need to be configured as plate structures having abutting surfaces facing the middle portion of the centering mechanism 100, and it should be noted that the middle portion of the centering mechanism 100 in the embodiment of the present application refers to a position where the object to be centered is located after the centering is completed.

Referring to fig. 3-4, in some alternative embodiments, the first clamping plate 131 and the second clamping plate 132 each include a supporting plate 134 and an abutting member 135. The distance from the supporting plate 134 of the first clamping plate 131 to the supporting plate 134 of the second clamping plate 132 is greater than the distance from the abutting piece 135 of the first clamping plate 131 to the supporting plate 134 of the second clamping plate 132, and the distance from the supporting plate 134 of the second clamping plate 132 to the supporting plate 134 of the first clamping plate 131 is greater than the distance from the abutting piece 135 of the second clamping plate 132 to the supporting plate 134 of the first clamping plate 131, which means that the supporting plates 134 of the first clamping plate 131 and the second clamping plate 132 both have supporting portions located at the middle portions of the abutting pieces 135 close to the centering mechanism 100, and are used for supporting an object. The supporting members 135 on each supporting plate 134 are disposed at least one, and when disposed at least two, are distributed on the top of the supporting plate 134 along the radial direction of the driving rod body 121, so that the distance from the supporting members 135 on each supporting plate 134 to the middle of the centering mechanism 100 is the same.

When the centering operation is performed, the edges of the two sides of the object to be centered are supported by the supporting portions of the first clamping plate 131 and the second clamping plate 132, and when the first clamping plate 131 and the second clamping plate 132 approach each other, the object to be centered is abutted by the abutting piece 135 on the supporting plate 134 to achieve centering. The article to be centered is supported by the supporting plate 134, so that the interference between the article to be centered and the structure at the bottom of the clamping assembly can be effectively avoided.

By adopting the arrangement mode, in use, the supporting part of the supporting plate 134 can also extend into the opening of the channel steel structure with openings at two sides for supporting, for example, the radiator with channel steel can be conveniently supported to carry out effective centering operation on the radiator. Specifically, when the centering device is applied to a structure with channel steel for centering, the centering device can be better suitable for fine-tuning centering, please refer to fig. 5, first the first clamping plate 131 and the second clamping plate 132 are adjusted to move in the opposite direction until the edge of the supporting portion of the supporting plate 134 abuts against the opening of the channel steel of the object to be centered, please refer to fig. 6, and then the first clamping plate 131 and the second clamping plate 132 are adjusted to further move in the opposite direction until the opening of the channel steel of the object to be centered abuts against the abutting piece 135.

Further, each of the retainers 135 includes a fixing plate 1351 and an adjusting plate 1353, the fixing plate 1351 being attached to the top of the support plate 134, and the adjusting plate 1353 being detachably attached to the fixing plate 1351, so that the retainer 135 has a state in which the adjusting plate 1353 is mounted and a state in which the adjusting plate 1353 is not mounted. When the adjusting plate 1353 is attached to the fixing plate 1351, the distance from the adjusting plate 1353 to the edge of the supporting plate 134 located at the inner side is smaller than the distance from the fixing plate 1351 to the edge of the supporting plate 134 located at the inner side, the edge of the supporting plate 134 located at the inner side is the edge of the supporting plate 134 located at the side close to the adjacent supporting plate 134, and the edge of the supporting plate 134 located at the inner side is also the edge of the supporting plate 134 located at the side close to the middle of the centering. Under this mode of setting, through installation and dismantlement regulating plate 1353, can adjust the effective support width at the support site of backup pad 134, especially can adjust the coincidence length of channel-section steel and backup pad 134 effectively when supporting the structure that has the channel-section steel, can better adapt to the needs that support to the article of different sizes.

Referring to fig. 7, for example, the fixing plate 1351 is provided with a limiting slide rail 1352, the limiting slide groove 1355 is optionally provided on a side of the fixing plate 1351 near the middle of the centering mechanism 100, and the limiting slide groove 1355 is, for example, in a "T" shape and extends along the height direction of the base 110. The adjusting plate 1353 is provided with a limiting sliding chute 1355 in sliding fit with the limiting sliding rail 1352, the limiting sliding chute 1355 is optionally disposed on a side of the adjusting plate 1353 close to the fixing plate 1351, and the limiting sliding chute 1355 is correspondingly disposed in a "T" shape, for example, and extends along the height direction of the base 110. Through spacing slide rail 1352 and spacing spout 1355 cooperate, can conveniently install and dismantle. The detachable connection between the fixing plate 1351 and the adjusting plate 1353 is not limited to the above-mentioned arrangement, and may be, for example, a snap connection or a fastening connection.

In the embodiment of the present application, the adjusting plate 1353 is not limited to be provided with only an adjustable plate body detachably connected to the fixing plate 1351, and at least two adjustable plate bodies may be provided as needed. When at least two adjustable plate bodies are arranged, one of the adjustable plate bodies is detachably connected with the fixed plate 1351, the adjustable plate body connected to the fixed plate 1351 can be detachably connected with another adjustable plate body, the other adjustable plate body can be detachably connected with another adjustable plate body, and the effective supporting width of the supporting part of the supporting plate 134 can be correspondingly reduced when one adjustable plate body is added, so that the adjustment of the supporting width of more stages can be realized. Similarly, the detachable connection between the adjustable plates is not limited, and for example, the adjustable plate 1353 and the fixed plate 1351 may be connected.

Referring to fig. 7, for example, the adjusting plate 1353 includes a first adjustable plate body 1354 and a second adjustable plate body 1357, a side of the first adjustable plate body 1354 close to the fixing plate 1351 is provided with a limiting sliding chute 1355 in sliding fit with the limiting sliding rail 1352, a side of the first adjustable plate body 1354 away from the fixing plate 1351 is provided with a mounting sliding chute 1356, the second adjustable plate body 1357 is detachably connected to a side of the first adjustable plate body 1354 away from the fixing plate 1351, a side of the second adjustable plate body 1357 close to the first adjustable plate body 1354 is provided with a mounting sliding rail 1358 in sliding fit with the mounting sliding chute 1356, and the mounting sliding chute 1356 and the mounting sliding rail 1358 are disposed in the same manner as the limiting sliding chute 1355 and the limiting sliding rail 1352.

In some alternative embodiments, the base 110 is provided with a support rail 111, and the support rail 111 optionally extends in the axial direction of the driving rod body 121. The bottoms of the first clamping plate 131 and the second clamping plate 132 are slidably engaged with the supporting rail 111. The arrangement of the support rail 111 enables the first and

second clamping plates

131 and 132 to be effectively used, so that the operational stability of the first and

second clamping plates

131 and 132 is higher. The top of the support rail 111 may also be provided with a lubricating layer, for example, which can reduce the friction force generated between the support rail 111 and the bottom of the first clamping plate 131 and the bottom of the second clamping plate 132.

Further, the bottom of first grip block 131 and the bottom of second grip block 132 all offer with support track 111 complex support spout 133, should support spout 133 and extend along the axial of drive rod body 121 equally, support spout 133 and support track 111's sliding fit has the guide effect for the job stabilization nature and the precision of first grip block 131 and second grip block 132 are higher.

The working principle of the centering mechanism 100 provided by the embodiment of the application is as follows:

when the centering operation is performed on the object to be centered, the object to be centered is placed between the first clamping plate 131 and the second clamping plate 132. The transmission rod body 121 of the transmission assembly 120 is driven to rotate, so that the first rod body and the second rod body with external threads with opposite rotation directions drive the first sliding block 122 and the second sliding block 123 to synchronously move in opposite directions, the first sliding block 122 and the second sliding block 123 which synchronously move in opposite directions drive the first clamping plate 131 and the second clamping plate 132 to synchronously move in opposite directions until two sides of an object to be centered are respectively abutted by the first clamping plate 131 and the second clamping plate 132, and centering is realized. After centering is completed, the transmission rod body 121 of the driving transmission assembly 120 rotates in opposite phase, at this time, the first rod body and the second rod body drive the first slider 122 and the second slider 123 to move synchronously in opposite directions, the first slider 122 and the second slider 123 which move synchronously in opposite directions drive the first clamping plate 131 and the second clamping plate 132 to move synchronously in opposite directions, and the distance between the first clamping plate 131 and the second clamping plate 132 is increased to be larger than an object to be centered, so that the object to be centered is placed between the first clamping plate 131 and the second clamping plate 132 for centering operation next time. Automatic centering is realized through synchronous motion of the first clamping plate 131 and the second clamping plate 132, and centering operation is convenient, rapid and accurate. The screw driving mode of the driving rod 121 has high accuracy, which is beneficial to ensuring the motion synchronism of the first clamping plate 131 and the second clamping plate 132.

The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A centering mechanism, comprising:

a base;

the transmission assembly comprises a transmission rod body, a first sliding block and a second sliding block, the transmission rod body is rotatably supported on the base and comprises a first rod section and a second rod section which are distributed along the axial direction, the first sliding block is in transmission connection with the first rod section, the second sliding block is in transmission connection with the second rod section, the first rod section and the second rod section are provided with external threads with opposite rotation directions, and the transmission rod body can drive the first sliding block and the second sliding block to synchronously move towards or away from each other along the axial direction of the transmission rod body when rotating around an axis; and

2. The centering mechanism as claimed in claim 1, wherein the first rod section and the second rod section are both configured as lead screws, the first slider is slidably sleeved on the first rod section and provided with an internal thread in transmission fit with the first rod section, and the second slider is slidably sleeved on the second rod section and provided with an internal thread in transmission fit with the second rod section.

3. The centering mechanism as claimed in claim 1 or 2, wherein each of said clamping assemblies is engaged with two of said sets of transmission assemblies, both ends of said first clamping plate in the length direction are respectively connected to said first sliding blocks of said two sets of transmission assemblies, and both ends of said second clamping plate in the length direction are respectively connected to said second sliding blocks of said two sets of transmission assemblies.

4. The centering mechanism as recited in claim 3, further comprising:

and the synchronous transmission parts are respectively in transmission connection with the transmission rod bodies of the two groups of transmission assemblies so as to enable the transmission rod bodies of the two groups of transmission assemblies to synchronously rotate.

5. The centering mechanism as recited in claim 4, further comprising:

the tensioning mechanism abuts against the synchronous transmission piece, the tensioning mechanism is connected with the base, and the tensioning mechanism is used for adjusting the pressure between the synchronous transmission piece and the transmission rod bodies of the two groups of transmission assemblies.

6. The centering mechanism as claimed in claim 1, wherein said first clamping plate and said second clamping plate each comprise a supporting plate and at least one abutting member, said at least one abutting member is distributed at the top of said supporting plate along the radial direction of said driving rod body, the distance from said supporting plate of said first clamping plate to said supporting plate of said second clamping plate is greater than the distance from said abutting member of said first clamping plate to said supporting plate of said second clamping plate, and the distance from said supporting plate of said second clamping plate to said supporting plate of said first clamping plate is greater than the distance from said abutting member of said second clamping plate to said supporting plate of said first clamping plate.

7. The centering mechanism as claimed in claim 6, wherein each of said abutting members comprises a fixed plate and an adjusting plate, said fixed plate is connected to the top of said supporting plate, said adjusting plate is detachably connected to said fixed plate, when said adjusting plate is connected to said fixed plate, the distance from said adjusting plate to the edge of said supporting plate located at the inner side is smaller than the distance from said fixed plate to the edge of said supporting plate located at the inner side, and the edge of said supporting plate located at the inner side is the edge of said supporting plate close to the adjacent side of said supporting plate.

8. The centering mechanism as claimed in claim 7, wherein said fixed plate is provided with a limit slide rail, and said adjusting plate is provided with a limit slide groove slidably engaged with said limit slide rail.

9. The centering mechanism as claimed in claim 1, wherein said base is provided with a support rail, and wherein the bottom portions of said first clamping plate and said second clamping plate are slidably engaged with said support rail.

10. The centering mechanism as claimed in claim 9, wherein the bottom of said first clamping plate and the bottom of said second clamping plate are both provided with a supporting runner engaged with said supporting rail.