CN217292065U - Clamping tool - Google Patents

Abstract

The application provides a clamping tool which comprises a base body and a plurality of clamping heads, wherein the plurality of clamping heads are connected with the base body and jointly define a clamping space for clamping a workpiece; at least one chuck in a plurality of chucks includes main part and a plurality of self-adaptation butt units, and every self-adaptation butt unit all includes butt terminal and elastic component, and the elastic component is connected in main part and butt terminal simultaneously, and the elastic component is used for making the butt terminal that corresponds have the motion trend of keeping away from the main part to make butt terminal ability butt in work piece surface. The clamping positioning device can directly clamp and position workpieces in different shapes on the premise of not replacing the tool, has strong adaptability, reduces the step of replacing the tool, saves time and labor, and is high in efficiency.

Description

Clamping tool

Technical Field

The utility model relates to a mechanical equipment field particularly, relates to a centre gripping frock.

Background

The speed reducer disassembly and assembly is one of the core links of production and research and development, the efficient disassembly and assembly can not only improve the quality of products, increase the economic benefits of companies, but also improve the understanding degree of workers on the products, quality control and subsequent product optimization and upgrading. In the prior art, the tool for disassembling and assembling the speed reducer comprises a workbench and clamping mechanisms arranged on the workbench, when the tool is used, the corresponding clamping mechanisms are required to be replaced according to the speed reducers of different models, and after the clamping mechanisms clamp a workpiece, the clamping mechanisms and the workbench are relatively fixed.

The inventor researches and discovers that the existing tool for disassembling and assembling the speed reducer at least has the following defects:

inconvenient operation, weak adaptability and low efficiency.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a centre gripping frock, it can be under the prerequisite of not changing the fixture model the work piece of the different shapes of centre gripping, and adaptability is strong, the simple operation is nimble, labour saving and time saving, efficient.

The embodiment of the utility model is realized like this:

the utility model provides a centre gripping frock, include:

the clamping heads are connected with the base body and jointly define a clamping space for clamping a workpiece; at least one chuck in a plurality of chucks includes main part and a plurality of self-adaptation butt units, every self-adaptation butt unit all includes butt terminal and elastic component, the elastic component connect simultaneously in the main part with the butt terminal, the elastic component is used for making corresponding the butt terminal have and keep away from the motion trend of main part, so that the butt terminal can butt in the work piece surface.

In an alternative embodiment, the adaptive abutment unit further comprises a guide structure through which the abutment terminal is slidably connected with the body.

In an alternative embodiment, the guiding structure includes a guide sleeve and a guide rod which are slidably fitted, one of the guide sleeve and the guide rod is connected with the main body, and the other is connected with the abutting terminal.

In an optional implementation manner, the clamping tool further comprises a driving mechanism, the driving mechanism is arranged on the base body, and the driving mechanism is connected with the plurality of chucks at the same time and used for driving the plurality of chucks to be close to the middle or far away from the periphery.

In an alternative embodiment, the driving mechanism includes a first linear telescopic structure and a force transmission block, the first linear telescopic structure is connected with the base body, the force transmission block is provided with a first guide portion, and the force transmission block is connected with the first linear telescopic structure; the chuck is provided with a second guide part, one of the first guide part and the second guide part is provided with a protrusion, the other one of the first guide part and the second guide part is provided with a groove, and the protrusion is connected with the groove in a sliding manner; the first linear telescopic structure is used for driving the plurality of clamping heads to be away from each other when the force transmission block is driven to slide relative to the base body along a first direction, and is used for driving the plurality of clamping heads to be close to each other when the force transmission block is driven to slide relative to the base body along a second direction opposite to the first direction.

In an optional embodiment, the clamping tool further comprises a supporting seat, and the base body is rotatably connected with the supporting seat so as to adjust the horizontal angle of the base body.

In an optional embodiment, the clamping tool further comprises a mounting seat and a plurality of second linear telescopic structures, the mounting seat is connected with the supporting seat, the second linear telescopic structures are simultaneously connected with the mounting seat and the base body and are arranged at intervals in the circumferential direction of the base body, and the second linear telescopic structures are matched together to realize the adjustment of the horizontal angle of the base body.

In an optional embodiment, the clamping tool further comprises a turnover mechanism, and the turnover mechanism is connected with the supporting seat and used for driving the workpiece to turn over relative to the base body.

In an optional embodiment, the turnover mechanism comprises a mounting frame, a clamp, a motor and a third linear telescopic structure, wherein the mounting frame is connected with the supporting seat, the mounting frame is rotatably connected with the mounting frame, and the clamp is arranged on the mounting frame and used for clamping a workpiece; the motor is connected with the mounting frame in a sliding mode, and an output shaft of the motor is in transmission connection with the mounting frame and used for driving the mounting frame to rotate so as to enable the workpiece on the clamp to turn relative to the base body; the third straight line extending structure is arranged on the mounting frame, and the third straight line extending structure is connected with the mounting frame and the motor simultaneously and used for driving the mounting frame and the motor to synchronously lift.

In an alternative embodiment, the mounting bracket is slidably connected to the support base for movement toward and away from the base.

The embodiment of the utility model provides a beneficial effect is:

in summary, the clamping tool provided in this embodiment utilizes the multiple chucks to cooperate together to define a clamping space capable of clamping the workpiece, that is, the workpiece can be accommodated in the clamping space and positioned under the cooperation of the multiple chucks. Simultaneously, because at least one chuck is provided with a plurality of self-adaptation butt units, every self-adaptation butt unit includes the butt terminal, and the butt terminal passes through the elastic component to be connected with the main part, every butt terminal homoenergetic under the elasticity of the elastic component that corresponds with work piece surface butt, that is to say, the motion of every butt terminal is independent, regulates and control through the elastic component that corresponds. When the work piece of work piece surface irregularity perhaps centre gripping different shapes, the adjustment of a plurality of butt joint terminals homoenergetic and work piece treated the surface of centre gripping closely laminate with the different realization self-adaptations of the elastic component by the compression volume that corresponds, and frock and work piece have enough big area of contact when guaranteeing the centre gripping work piece, guarantee the stability of centre gripping. Because the fixture can adapt to clamping of workpieces in different shapes, the fixture is strong in adaptability and wide in application range, the fixture does not need to be frequently replaced aiming at different workpieces, the process steps of replacing the fixture, finding a reference for the fixture and the like are reduced, the operation time is shortened, and the operation efficiency is improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, 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 invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic structural view of a clamping tool according to an embodiment of the present invention;

fig. 2 is a schematic structural view of a chuck according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of the wear-resistant block of the embodiment of the present invention;

fig. 4 is a schematic structural diagram of an adaptive abutting unit according to an embodiment of the present invention;

fig. 5 is a schematic view of the structure of the driving mechanism and a chuck according to the embodiment of the present invention;

fig. 6 is a schematic structural view of a driving mechanism, a base body and a chuck according to an embodiment of the present invention;

fig. 7 is a schematic structural view of the clamping tool according to the embodiment of the present invention, in which a turnover mechanism is additionally provided;

fig. 8 is a schematic structural diagram of the turnover mechanism according to the embodiment of the present invention;

fig. 9 is a schematic structural diagram for realizing adjustment of the horizontal angle of the base body according to the embodiment of the present invention.

Icon:

100-a substrate; 110-a slide rail; 200-a self-adaptive chuck; 210-a body; 211-wear resistant blocks; 2111-a second guide; 212-a positioning block; 2121-a first square; 2122-a second square; 220-an adaptive abutment unit; 221-a butt terminal; 222-a resilient member; 230-a guide structure; 231-a guide sleeve; 232-guide post; 300-a drive mechanism; 310-a first linear telescopic structure; 311-a first motor; 312-a first bevel gear; 313-second bevel gear; 314-mounting the cartridge; 315-screw rod; 316-a sliding sleeve; 320-a force transfer block; 321-a first guide; 400-a support seat; 410-a top plate; 411-assembly holes; 420-support legs; 500-a mounting seat; 600-a second linear telescopic structure; 700-door body; 800-turnover mechanism; 810-a mounting frame; 820-mounting a frame; 821-rotating shaft; 822-a fourth bevel gear; 830-a clamp; 840-a second motor; 841-third bevel gear; 850-a third linear telescoping structure; 860-a fourth linear telescopic structure; 870-a bearing; 900-guide rail.

Detailed Description

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

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

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 invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate the directions or positional relationships based on the directions or positional relationships shown in the drawings, or the directions or positional relationships that the products of the present invention are usually placed when used, and are only for the convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element indicated must have a specific direction, be constructed and operated in a specific direction, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal", "vertical" and the like do not imply that the components are required to be absolutely horizontal or pendant, but rather may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; 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 invention can be understood in specific cases to those skilled in the art.

At present, when a speed reducer, particularly an RV speed reducer, is disassembled and assembled, the speed reducer needs to be placed on a workbench, and related parts of the speed reducer need to be clamped and fixed by a clamp 830 on the workbench. Among the prior art, work and the workstation on the workstation are detachably connected, need change the frock according to the work piece of different shapes to the frock is changed the back, needs to carry out the calibration operation to the frock, so, complex operation wastes time and energy, expends time, inefficiency.

In view of this, the designer has designed a centre gripping frock, can directly carry out the centre gripping location to the work piece of different shapes under the prerequisite of not changing the frock, and strong adaptability reduces the step of changing the frock, labour saving and time saving, and is efficient.

Referring to fig. 1, fig. 2 and fig. 4, in the present embodiment, the clamping tool includes a base 100 and a plurality of chucks, which are connected to the base 100 and define a clamping space for clamping a workpiece; at least one of the plurality of chucks comprises a main body 210 and a plurality of adaptive abutment units 220, each adaptive abutment unit 220 comprises an abutment terminal 221 and an elastic member 222, the elastic member 222 is connected to both the main body 210 and the abutment terminal 221, and the elastic member 222 is used for enabling the corresponding abutment terminal 221 to have a movement tendency away from the main body 210 so as to enable the abutment terminal 221 to abut against the surface of the workpiece.

For convenience of description, a cartridge including a body 210 and a plurality of adaptive abutment units 220 among the plurality of cartridges is referred to as an adaptive cartridge 200. In this embodiment, the example that a plurality of chucks are all configured as the adaptive chuck 200 is described, so that each chuck can be adapted to the clamping of different positions of a workpiece, the application range is wide, and the clamping is stable and reliable.

The clamping tool provided by the embodiment utilizes a plurality of adaptive chucks 200 to cooperate with a clamped workpiece, the adaptive chucks 200 comprise a main body 210 and a plurality of adaptive abutting units 220, each adaptive abutting unit 220 comprises an abutting terminal 221, the abutting terminals 221 are connected with the main body 210 through elastic pieces 222, and each abutting terminal 221 can abut against the surface of the workpiece under the elastic force of the corresponding elastic piece 222. That is, the movement of each abutting terminal 221 is independent and regulated by the corresponding elastic member 222. When the work piece surface is irregular or the work piece of centre gripping different shapes, a plurality of butt joint terminals 221 all can be through the elastic component 222 that corresponds the adjustment that realizes the self-adaptation by the difference of the compression volume for a plurality of butt joint terminals 221 homoenergetic are closely laminated with the surface that the work piece waited the centre gripping, and frock and work piece have enough big area of contact when guaranteeing the centre gripping work piece, guarantee the stability of centre gripping. The tool can adapt to clamping of workpieces in different shapes, is high in adaptability and wide in application range, does not need to be frequently replaced aiming at different workpieces, reduces the working procedures of replacing the tool, finding a reference for the tool and the like, shortens the operation time, and improves the operation efficiency.

In this embodiment, it should be noted that the number of the adaptive chucks 200 may be two, three, or four, and in this embodiment, the number of the adaptive chucks 200 is three, and the three adaptive chucks 200 are uniformly arranged at intervals on the same circumference, and an included angle between adjacent adaptive chucks 200 is 120 °, and since a triangle has stability, the three adaptive chucks 200 are used to cooperate with each other to clamp a workpiece, so that the stability of the workpiece is better.

Referring to fig. 2 and 3, optionally, the main body 210 is provided in two parts, and includes a wear-resistant block 211 and a positioning block 212, and the wear-resistant block 211 and the positioning block 212 may be fixed together by a bolt or the like. The wear-resistant block 211 is slidably engaged with the base body 100 through the slide rail 110, for example, the wear-resistant block 211 is slidably engaged with the slide rail 110 in a dovetail structure or a T-shaped structure, and the wear-resistant block 211 can only slide along a set direction without being separated from the base body 100 along the axial direction of the base body 100. The side of the wear-resistant block 211 facing away from the positioning block 212 is provided with a guide part, which may be a groove or a protrusion, for example, in the present embodiment, the guide part is a groove, and the cross-sectional shape of the groove is a dovetail shape or a T shape. The positioning block 212 is provided in an L-shape, the positioning block 212 includes a first square portion 2121 and a second square portion 2122 which are integrally formed, and the first square portion 2121 is connected to the wear-resistant block 211. A first end surface of the first square portion 2121 in the longitudinal direction is flush with a first end surface of the second square portion 2122, and a second end surface of the first square portion 2121 in the longitudinal direction is spaced apart from a second end surface of the second square portion 2122. A plurality of contact terminals 221 are disposed on a second end surface of the first square portion 2121, a plurality of first square portions 2121 jointly enclose a first clamping space, a plurality of contact terminals 221 are disposed on a second end surface of the second square portion 2122, and a plurality of second square portions 2122 jointly enclose a second clamping space. The maximum clamping size of the first clamping space is smaller than that of the second clamping space, the second clamping space can be selected when a large workpiece needs to be clamped, and the first clamping space can be selected when a small workpiece needs to be clamped.

It should be appreciated that in other embodiments, the adaptive chuck 200 may include only the locating block 212, without the wear block 211.

Referring to fig. 4, each of the abutting terminals 221 may be configured as a square block, a cylindrical block, or the like. One end of the abutting terminal 221 is connected by an elastic member 222, and the other end is used for abutting against the surface of the workpiece. Further, each abutting terminal 221 is connected with the positioning block 212 through the guiding structure 230. For example, in the present embodiment, each of the abutting terminals 221 is connected to the positioning block 212 through four guiding structures 230. The four guiding structures 230 are all around the corresponding abutting terminals 221, and are arranged at regular intervals. Each guide structure 230 includes a guide sleeve 231 and a guide post 232, the guide sleeve 231 is connected with the positioning block 212, the guide post 232 is connected with the abutting terminal 221, and the guide post 232 is inserted into the guide sleeve 231 and slidably connected with the guide sleeve 231. It should be appreciated that in other embodiments, the guide post 232 may be coupled with the positioning block 212 and the guide sleeve 231 may be coupled with the abutment terminal 221. The four guide structures 230 guide the contact terminal 221 to slide relative to the main body 210, so that the contact terminal 221 operates stably and the clamping effect is good. It should be understood that in other embodiments, the number of guide structures 230 is not limited to four. In other embodiments, the guide sleeve 231 and the positioning block 212 or the contact terminal 221 may be integrally designed, and the guide post 232 and the positioning hole or the contact terminal 221 may be integrally designed.

Alternatively, the elastic member 222 may be provided as a spring, a resilient plate, a rubber member, or the like.

It should be understood that a plurality of contact terminals 221 are uniformly disposed on the second end surface of the first square portion 2121 and the second end surface of the second square portion 2122, the plurality of contact terminals 221 located on the first square portion 2121 may be arranged in a rectangular array or in a circular arrangement, etc., and the plurality of contact terminals 221 located on the second square portion 2122 may be arranged in a rectangular array or in a circular arrangement, etc.

In this embodiment, the three adaptive chucks 200 approach or move away from each other to clamp or loosen a workpiece, and therefore, the clamping tool further includes a driving mechanism 300, the driving mechanism 300 is disposed on the base 100 and can simultaneously drive the three adaptive chucks 200 to approach or move away from each other synchronously, where approaching means that the three adaptive chucks 200 are folded towards the middle, and moving away means that the three adaptive chucks 200 are spread around.

Referring to fig. 1, fig. 3, fig. 5 and fig. 6, optionally, the driving mechanism 300 includes a first linear telescopic structure 310 and a force transmission block 320, the first linear telescopic structure 310 is connected to the base 100, and the first linear telescopic structure 310 drives the three adaptive chucks 200 to approach or move away from each other synchronously through the force transmission block 320. Referring to fig. 9, further, the first linear expansion structure 310 includes a first motor 311, a first bevel gear 312, a second bevel gear 313, a mounting box 314, a screw 315, and a sliding sleeve 316, where the first motor 311 is connected to the base 100, the first bevel gear 312 is connected to an output shaft of the first motor 311, the mounting box 314 is connected to the base 100, the first bevel gear 312 is located in the mounting box 314, the screw 315 is rotatably connected to the mounting box 314 and relatively fixed to the mounting box 314 in an axial extension direction of the screw 315, the screw 315 is provided with the second bevel gear 313, the second bevel gear 313 is engaged with the first bevel gear 312, the sliding sleeve 316 is in threaded connection with the screw 315, the sliding sleeve 316 and the base 100 are relatively fixed in a circumferential direction of the screw 315, and the force-transmitting block 320 is provided on the sliding sleeve 316. That is, when the first motor 311 is started, the first bevel gear 312 drives the second bevel gear 313 to rotate, so as to drive the screw 315 to rotate, and since the screw 315 is screwed with the sliding sleeve 316, the sliding sleeve 316 can slide back and forth along the axial extension direction of the screw 315, so as to drive the force transmission block 320 to slide back and forth. Meanwhile, the force transmission block 320 is provided with a conical surface, the conical surface is provided with a guide portion, for convenience of description, the guide portion on the force transmission block 320 is a first guide portion 321, the guide portion on the wear-resistant block 211 is a second guide portion 2111, and the number of the first guide portions 321 is equal to that of the second guide portions 2111, and the first guide portions are in one-to-one corresponding sliding fit. When the second guide portion 2111 is a groove, the first guide portion 321 is a projection, and when the second guide portion 2111 is a projection, the first guide portion 321 is a groove. Because the protrusion and the groove are in a dovetail structure or a T-shaped structure which are matched with each other. When the force transfer block 320 is lifted, the three main bodies 210 move toward or away from each other synchronously under the cooperation of the first guide portion 321 and the second guide portion 2111, so that a workpiece can be clamped or unclamped. For example, the first linear expansion structure 310 can drive the plurality of adaptive cartridges 200 to move away from each other when the force transmission block 320 is driven by the first linear expansion structure 310 to slide relative to the base 100 in a first direction, and the plurality of adaptive cartridges 200 can be driven to move closer to each other when the force transmission block 320 is driven by the first linear expansion structure 310 to slide relative to the base 100 in a second direction opposite to the first direction.

It should be noted that the screw 315 and the mounting box 314 may be connected by a bearing, so that the screw 315 can not only rotate relative to the mounting box 314, but also cannot move relative to the mounting box 314 in the axial extending direction thereof. Alternatively, in other embodiments, the screw 315 and the mounting box 314 may be connected by a magnet, which also achieves the purpose of relative rotation but no relative movement along the axial extension direction of the screw 315.

Further, in other embodiments, the first linear telescopic structure 310 may be provided as a pneumatic cylinder, a hydraulic cylinder, or the like.

Please refer to fig. 7 and 9, it should be understood that, in the actual operation process, the horizontal angle of the workpiece needs to be adjusted, in this embodiment, optionally, the clamping fixture further includes a supporting seat 400, the supporting seat 400 includes a top plate 410 and four supporting legs 420, the supporting legs 420 are all connected with the top plate 410, and each supporting leg 420 is set to be a telescopic structure to adjust the height of the top plate 410. The middle part of roof 410 is provided with pilot hole 411, and pilot hole 411 is the round hole, and base member 100 is the plectane, and base member 100 inlays and locates in pilot hole 411, and base member 100 can rotate in the horizontal plane for pilot hole 411 to the horizontal plane contained angle of adjustment base member 100, because the work piece through the installation with the chuck location on the base member 100, the adjustment of work piece horizontal angle has been realized promptly in the horizontal plane angular adjustment of base member 100.

Optionally, the clamping tool further comprises a mounting seat 500 and a plurality of second linear telescopic structures 600, the mounting seat 500 is connected with the supporting seat 400, the second linear telescopic structures 600 are connected to the mounting seat 500 and the base body 100 at the same time and are arranged in the circumferential direction of the base body 100 at uniform intervals, and the second linear telescopic structures 600 are matched together to adjust the horizontal angle of the base body 100. For example, in this embodiment, eight second linear telescopic structures 600 are arranged on the mounting base 500, the eight second linear telescopic structures 600 are all connected to the base 100 and are uniformly arranged at intervals in the circumferential direction of the base 100, and the base 100 can be driven to rotate relative to the assembly hole 411 by controlling the telescopic amount of the corresponding second linear telescopic structure 600, so as to adjust the horizontal angle of the base 100 as required. It should be understood that the number of the second linear expansion structure 600 is not limited to eight, and further, the second linear expansion structure 600 may be a cylinder, etc.

Further, an operation hole is formed in a side of the mounting seat 500 away from the base 100, and a door body 700 is disposed in the operation hole, so that the operation hole can be opened or closed through the door body 700, and when the operation hole is opened, maintenance, overhaul and other operations of components can be performed through the operation hole conveniently. The door body 700 and the mounting seat 500 can be detachably connected through a structure such as a buckle.

Referring to fig. 7 to 9, in the present embodiment, optionally, the clamping tool further includes a turning mechanism 800, and the turning mechanism 800 is connected to the supporting seat 400 and is configured to drive the workpiece to turn relative to the substrate 100. That is to say, in the actual operation in-process, need make the work piece upset, the traditional mode is that the work piece is directly overturned in the manual work, so, waste time and energy, and the work piece has the circumstances such as landing, and is dangerous high. In this embodiment, the turnover mechanism 800 is arranged to automatically turn over the workpiece, that is, the turnover mechanism 800 can turn the workpiece 180 ° in the horizontal plane, and turn over the top surface and the bottom surface of the workpiece.

Optionally, the turnover mechanism 800 includes a mounting frame 810, a mounting frame 820, a clamp 830, a second motor 840 and a third linear telescopic structure 850, the mounting frame 810 is connected to the support base 400, the mounting frame 820 is rotatably connected to the mounting frame 810, and the clamp 830 is disposed on the mounting frame 820 and used for clamping a workpiece. The second motor 840 is slidably connected to the mounting frame 810, a third bevel gear 841 is disposed on an output shaft of the second motor 840, a rotating shaft 821 is disposed on the mounting frame 820, a fourth bevel gear 822 is disposed on the rotating shaft 821, and the third bevel gear 841 and the fourth bevel gear 822 are engaged with each other. The third linear telescopic structure 850 is disposed on the mounting frame 810, and the third linear telescopic structure 850 is connected to the mounting frame 820 and the motor at the same time, and is used for driving the mounting frame 820 and the motor to synchronously lift. And, the third linear telescopic structure 850 is connected with the rotating shaft 821 through the bearing 870, the third linear telescopic structure 850 drives the rotating shaft 821 to go up and down, and does not interfere the rotating shaft 821 to drive the installation frame 820 to rotate under the action of the second motor 840, that is, the installation frame 820 and the fixture 830 are regarded as a whole, the third linear telescopic structure 850 and the bearing 870 are arranged in a suspended manner, after the second motor 840 is started, the torque can be transmitted to the rotating shaft 821 through the structure matched with the third bevel gear 841 and the fourth bevel gear 822, so that the installation frame 820 and the fixture 830 are driven to turn over through the rotating shaft 821, and the workpiece on the fixture 830 is turned over relative to the substrate 100. In addition, the third linear telescopic structure 850 can be matched to drive the installation frame 820 and the clamp 830 to lift, so that the position of the workpiece can be adjusted more flexibly and conveniently.

It should be noted that, two coaxial rotating shafts 821 are arranged on the mounting frame 820, each rotating shaft 821 is provided with one fourth bevel gear 822 and one bearing 870, and the number of the third linear telescopic structures 850 and the second motors 840 is two and are respectively matched with the two rotating shafts 821, so that the mounting frame 820 is good in balance, torque transmission is realized through a gear engagement mode, a self-locking function is achieved, and the mounting frame 820 is not easy to automatically turn over.

It should be understood that after the second motor 840 and the third linear telescopic structure 850 are assembled, the output shaft of the second motor 840 extends in the first direction or the second direction, and the third linear telescopic structure 850 is extended and contracted in the first direction or the second direction.

Furthermore, the mounting frame 810 is slidably connected with the supporting frame, and the mounting frame 810 can slide away from the base body 100 when not in use, so that the mounting frame 820 and the clamp 830 can leave the position right above the base body 100, no shielding object is arranged right above the base body 100, the operation space is large, and the work piece dismounting operation is facilitated. Specifically, two parallel guide rails 900 may be disposed on the top plate 410 of the support base 400, and the support frame is slidably connected to the two guide rails 900.

Alternatively, the fixture 830 may include a plurality of adaptive chucks 200, thereby enabling the clamping of workpieces of different shapes or irregular surfaces with a high degree of adaptability.

Further, each chuck on the clamp 830 may be independently controlled by a corresponding fourth linear expansion structure 860, and the fourth linear expansion structure 860 may be configured as an air cylinder, a hydraulic cylinder, a screw rod structure, or the like. It should be appreciated that the plurality of fourth linear telescoping structures 860 may move synchronously to move the plurality of jaws closer or farther in synchronization.

In this embodiment, the fixture 830 may optionally include three adaptive cartridges 200.

The centre gripping frock that this embodiment provided can the centre gripping different shapes and the anomalous work piece in surface through setting up self-adaptation chuck 200, and adaptability is strong, and application scope is wide, and is with low costs. Simultaneously, base member 100 can adjust horizontal angle to the adjustment that the work piece horizontal angle that the drive is located on base member 100, tilting mechanism 800 can drive the work piece upset, so, the work piece is nimble in the form adjustment of dismouting in-process for the operation personnel, and adjusts the operation degree of automation height, and the dismouting is more convenient, and is efficient.

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

Claims (10)

1. The utility model provides a centre gripping frock, its characterized in that includes:

the clamping heads are connected with the base body and jointly define a clamping space for clamping a workpiece; at least one chuck in a plurality of chucks includes main part and a plurality of self-adaptation butt units, every self-adaptation butt unit all includes butt terminal and elastic component, the elastic component connect simultaneously in the main part with the butt terminal, the elastic component is used for making corresponding the butt terminal have and keep away from the motion trend of main part, so that the butt terminal can butt in the work piece surface.

2. The clamping tool of claim 1, wherein:

the adaptive abutment unit further comprises a guide structure through which the abutment terminal is slidably connected with the body.

3. The clamping tool according to claim 2, characterized in that:

the guide structure comprises a guide sleeve and a guide rod which are in sliding fit, one of the guide sleeve and the guide rod is connected with the main body, and the other of the guide sleeve and the guide rod is connected with the abutting terminal.

4. The clamping tool of claim 1, wherein:

the clamping tool further comprises a driving mechanism, the driving mechanism is arranged on the base body, and the driving mechanism is connected with the plurality of chucks and used for driving the plurality of chucks to be close to the middle or far away from the periphery.

5. The clamping tool of claim 4, wherein:

the driving mechanism comprises a first linear telescopic structure and a force transmission block, the first linear telescopic structure is connected with the base body, the force transmission block is provided with a first guide part, and the force transmission block is connected with the first linear telescopic structure; the chuck is provided with a second guide part, one of the first guide part and the second guide part is provided with a protrusion, the other one of the first guide part and the second guide part is provided with a groove, and the protrusion is connected with the groove in a sliding manner; the first linear telescopic structure is used for driving the plurality of clamping heads to be away from each other when the force transmission block is driven to slide relative to the base body along a first direction, and is used for driving the plurality of clamping heads to be close to each other when the force transmission block is driven to slide relative to the base body along a second direction opposite to the first direction.

6. The clamping tool of claim 4, wherein:

the clamping tool further comprises a supporting seat, the base body is rotatably connected with the supporting seat to adjust the horizontal angle of the base body.

7. The clamping tool of claim 6, wherein:

the centre gripping frock still includes mount pad and a plurality of second straight line extending structure, the mount pad with the supporting seat is connected, a plurality of second straight line extending structure connect simultaneously in the mount pad with the base member, and the interval is arranged in the circumference of base member, a plurality of second straight line extending structure cooperate in order to realize jointly the regulation of the horizontal angle of base member.

8. The clamping tool of claim 6, wherein:

the clamping tool further comprises a turnover mechanism, and the turnover mechanism is connected with the supporting seat and used for driving the workpiece to turn over relative to the base body.

9. The clamping tool of claim 8, wherein:

the turnover mechanism comprises a mounting frame, a clamp, a motor and a third linear telescopic structure, the mounting frame is connected with the supporting seat, the mounting frame is rotatably connected with the mounting frame, and the clamp is arranged on the mounting frame and used for clamping a workpiece; the motor is connected with the mounting frame in a sliding mode, and an output shaft of the motor is in transmission connection with the mounting frame and used for driving the mounting frame to rotate so as to enable the workpiece on the clamp to turn relative to the base body; the third straight line extending structure is arranged on the mounting frame, and the third straight line extending structure is connected with the mounting frame and the motor simultaneously and used for driving the mounting frame and the motor to synchronously lift.

10. The clamping tool of claim 9, wherein:

the mounting frame is connected with the supporting seat in a sliding mode and used for being close to or far away from the base body.

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