CN218592753U

CN218592753U - Centering clamping device

Info

Publication number: CN218592753U
Application number: CN202222447490.2U
Authority: CN
Inventors: 康平; 杨萍
Original assignee: Shanghai Ruixi Automation Technology Co ltd
Current assignee: Shanghai Ruixi Automation Technology Co ltd
Priority date: 2022-09-15
Filing date: 2022-09-15
Publication date: 2023-03-10
Anticipated expiration: 2032-09-15

Abstract

The application discloses centering clamping device for to a product centering centre gripping. The centering and clamping device comprises a mounting seat, a driving component, a pair of force transmission pieces, a pair of clamping pieces, a driving piece and a pair of pivot shafts. The pair of force transmission pieces are rotatably arranged on the mounting seat through a pair of pivot shafts respectively, the pair of clamping pieces are connected to one end portions, away from the driving member, of the force transmission pieces respectively, the driving member is connected to the driving piece in a driving mode, the driving member is linked to the force transmission pieces to rotate around the pivot shafts as a fulcrum when moving, and the pair of force transmission pieces are connected through the driving member. By utilizing the lever principle, one end part of the force transmission piece, which is far away from the driving component, is close to each other, so that the two clamping pieces are driven to be close to each other, and finally, the product is clamped.

Description

Centering clamping device

Technical Field

The utility model relates to a clamping device especially relates to centering clamping device.

Background

When assembling or processing parts, a clamping device may be used to clamp the product. The existing clamping device comprises two types, one type is that the clamping is as follows: the product is close to the clamp from one direction, and the position of the product is fixed; the other one is: and the two clamps are respectively close to the product from two opposite directions to carry out centering clamping on the product.

When the product is centered and clamped by the clamps from two opposite directions, two drives are usually required to be arranged, and the two drives respectively drive the two clamps to approach towards the middle, so that the product placed between the two clamps is clamped. This clamping manner undoubtedly increases the number of drives and thus increases the volume of the clamping device, so that there may be inconvenience in carrying or transferring the clamping device. And two drives are required to operate simultaneously in the clamping process, so that the energy consumed in the use process of the clamping device is undoubtedly increased, and the clamping device is not in accordance with the value of energy conservation and environmental protection.

When the existing clamp clamps a product, the pressing force of the clamp on the product cannot be amplified, so that the product cannot be clamped due to small stress in the clamping process, the clamping effect of the product can be influenced, and the stability of the product in subsequent processing is finally influenced.

SUMMERY OF THE UTILITY MODEL

The utility model discloses an advantage lies in providing centering clamping device, through utilizing lever principle, increases the packing force of product when the centre gripping, and then improves the stability of product centre gripping in-process, improves the centre gripping effect.

The utility model has the advantages of an advantage of providing centering clamping device, utilize a drive to drive two holders simultaneously and remove towards the product and accomplish the centre gripping to the product at the in-process of centre gripping, need not be with the help of a plurality of drive operations, it is more energy-concerving and environment-protective to the energy of consumption when reducing the centre gripping.

The utility model discloses an advantage lies in providing centering clamping device, at the in-process of centre gripping, can adjust the stroke of holder centre gripping, and then not only can carry out the centre gripping to not unidimensional product, can protect the product simultaneously.

The utility model has the advantages of a centering clamping device is provided, and the structure setting is comparatively simple, need not be with the help of the structure operation of complicacy, reduce cost.

In order to achieve the utility model discloses above at least one advantage, the utility model provides a centering clamping device, centering clamping device is used for a product centering centre gripping, centering clamping device includes:

a pivotal shaft;

a mounting base;

a driving member;

a driving member driveably connected to the driving member;

the pair of force transmission pieces are rotatably arranged on the mounting seat through the pair of pivot shafts, the driving member is linked to rotate around the pivot shafts as a fulcrum when moving, the pivot shafts are used as boundaries, the force transmission pieces define a power part and a resistance part, the resistance part is formed by extending the power part, the vertical distance between a power action line applied to the power part and the pivot shafts is L1, the vertical distance between the power action line applied to the resistance part and the pivot shafts is L2, L1 is larger than L2, the driving member is arranged at one end part of the mounting seat close to the power part, and based on the lever principle, when small acting force is applied to the power part through the movement of the driving member to drive the force transmission pieces to rotate relative to the mounting seat, the resistance part of the force transmission pieces is clamped on the product with a force larger than that is applied to the power part;

the pair of clamping pieces are respectively connected to one end portion, far away from the driving member, of the force transmission member, a placing area is formed between the pair of clamping pieces, the product is placed in the placing area, the clamping pieces have a clamping state and a non-clamping state, the driving member defines an initial position and a final position, when the driving member is in the initial position, the clamping pieces are in the non-clamping state, when the driving member is switched to the final position, the clamping pieces are switched to the clamping state, more specifically, when the driving member is switched from the initial position to the final position, the two clamping pieces move towards the placing area, the two clamping pieces are close to each other to clamp the product placed in the placing area, when the driving member is switched from the final position to the initial position, the two clamping pieces move towards the direction far away from the placing area, and the two clamping pieces move away from each other.

According to an embodiment of the present invention, the driving member includes a moving member and a link member, the link member is pivotally connected between the moving member and the power portion of the force transmission member, the moving member is drivably connected to the driving member, and when the moving member is switched from the initial position to the final position, the moving member pulls the link member to move, the link member pulls the force transmission member to be opposite to the mount pad is rotated with the pivot shaft as a fulcrum, and the power portion is kept away from each other, and the resistance portions are close to each other, thereby driving a pair of the clamping members to be close to each other.

According to the utility model discloses an embodiment, when driving the component and being in initial position, the moving member install in the high position of mount pad drive the component and be in when the final position, the moving member install in the low position of mount pad, and when the moving member moves from high position to low position, the linkage is kept away from a tip of moving member with vertical distance between the moving member grow gradually.

According to the utility model discloses an embodiment, when driving the component and being in initial position, the moving member install in the low position of mount pad when driving the component and being in final position, the moving member install in the high position of mount pad, and when the moving member followed the low position of mount pad removes to high position, the linkage is kept away from a tip of moving member with vertical distance between the moving member grow gradually.

According to the utility model discloses an embodiment, centering clamping device still includes a stop part, the stop part install in the mount pad, the stop part set up in moving part's trajectory of motion department to when the moving member moves to the stop part contacts, cause the stopping to the removal of moving member, with this injecture the displacement distance of moving member.

According to the utility model discloses an embodiment, the mount pad has a spout, moving member slidable install in the spout.

According to the utility model relates to an embodiment, it is a pair of pass the specification of power piece unanimously, and with the axis that drives the component is symmetric distribution, and is a pair of the specification of holder is unanimous, and with the axis that drives the component is symmetric distribution for referring to.

According to the utility model discloses an embodiment, the stop part movably connect in the mount pad to through the removal of stop part is adjusted the moving range of moving member.

According to the utility model discloses an embodiment, centering clamping device still includes a two-way regulating part, the holder movably connect in pass power piece, two-way regulating part set up in the diapire of holder with pass between the power piece and the lateral wall of holder with pass between the power piece to at horizontal direction and vertical direction, two-way adjustment the position of holder.

According to the utility model discloses an embodiment, it includes a moving member and a linkage to drive the component, the moving member passes through the linkage with pass power piece and connect, the linkage is set up to elastic material, the linkage is in compression state, the moving member has both sides face, contained angle between both sides face and the bottom surface equals, and the side with contained angle between the bottom surface is the acute angle, power portion with the mutual butt in side.

Drawings

Fig. 1 shows a schematic structural perspective view of the centering and clamping device of the present invention.

Fig. 2 shows a schematic structural diagram of the centering and clamping device of the present invention in one state.

Fig. 3 shows a schematic structural diagram of the centering and clamping device of the present invention in another state.

Fig. 4 shows a schematic structural diagram of another embodiment of the centering and clamping device of the present invention.

Detailed Description

The following description is provided to disclose the invention so as to enable any person skilled in the art to practice the invention. The preferred embodiments in the following description are given by way of example only, and other obvious variations will occur to those skilled in the art. The underlying principles of the invention, as defined in the following description, may be applied to other embodiments, variations, modifications, equivalents, and other technical solutions without departing from the spirit and scope of the invention.

It will be understood by those skilled in the art that in the present disclosure, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in a generic and descriptive sense only and not for purposes of limitation, as the terms are used in the description to indicate that the referenced device or element must have the specified orientation, be constructed and operated in the specified orientation, and not for the purpose of limitation.

It is understood that the terms "a" and "an" should be interpreted as meaning that a number of one element or element is one in one embodiment, while a number of other elements is one in another embodiment, and the terms "a" and "an" should not be interpreted as limiting the number.

Referring to fig. 1 to 4, a centering and clamping device according to a preferred embodiment of the present invention for centering and clamping a product 900 will be described in detail below. The centering and clamping device comprises a mounting seat 10, a driving member 20, a pair of force transmission members 30, a pair of clamping members 40, a driving member 50 and a pair of pivot shafts 60.

The pair of force transmitting members 30 are rotatably mounted to the mounting base 10 by a pair of pivot shafts 60, respectively, a pair of clamping members 40 are connected to an end of the force transmitting member 30 away from the driving member 20, the driving member 20 is drivably connected to the driving member 50, and when the driving member 20 moves, the force transmitting members 30 are linked to rotate about the pivot shafts 60, and the force transmitting members 30 are connected by the driving member 20. By using the principle of leverage, the end of the force transmission member 30 away from the driving member 20 is moved closer to each other, thereby moving the two clamping members 40 closer to each other, and finally clamping the product 900.

Further, with the pivot shaft 60 as a boundary, the force transmission member 30 defines a power portion 31 and a resistance portion 32, the resistance portion 32 is formed by extending the power portion 31, a vertical distance between a power line applied to the power portion 31 and the pivot shaft 60 is defined as L1, a vertical distance between a power line applied to the resistance portion 32 and the pivot shaft 60 is defined as L2, and L1 is greater than L2. The driving member 20 is disposed on the power portion 31, and the clamping member 40 is disposed on the resistance portion 32. Based on the principle of leverage, when a small force is applied to the power portion 31 by the movement of the driving member 20 to rotate the force-transmitting member 30 relative to the mounting seat 10, the resistance portion 32 of the force-transmitting member 30 clamps the product 900 with a force greater than that applied to the power portion 31, so that the pressing force of the product 900 is increased when clamping the product 900.

A placing area 4001 is formed between the pair of holding members 40, the product 900 is placed in the placing area 4001, the holding members 40 have a holding state and a non-holding state, the driving member 20 defines an initial position and a final position, and when the driving member 20 is at the initial position, the holding members 40 are in the non-holding state, and when the driving member 20 is switched to the final position, the holding members 40 are switched to the holding state.

More specifically, when the entraining member 20 is switched from the initial position to the final position, the two gripping members 40 are both moved towards the placing area 4001, and the two gripping members 40 approach each other, so as to grip the product 900 placed in the placing area 4001; when the carrying member 20 is switched from the final position to the initial position, both the clamping members 40 move away from the placing area 4001, and the clamping members 40 move away from each other, so that the product 900 placed in the placing area 4001 is released.

Preferably, the force transmission members 30 have the same specification, and are symmetrically distributed with the central axis of the driving member 20 as a reference, so that when the driving member 20 moves, the two force transmission members 30 are linked to move synchronously toward the middle by the same distance, so as to ensure that when the power portion 31 drives the clamping member 40 to clamp two sides of the product 900, the stresses on two sides of the product 900 are kept the same, and further ensure that the stress is balanced when the product 900 is clamped. Meanwhile, in the process that the two clamping pieces 40 synchronously clamp the two sides of the product 900, the position of the product 900 is calibrated so as to ensure that the product 900 is positioned in the center of the placing area 4001 when being clamped.

Preferably, the pair of clamping members 40 have the same specification, and are symmetrically distributed with reference to the central axis of the driving member 20.

Further, the driving member 20 includes a moving member 21 and a linkage member 22, the linkage member 22 is pivotally connected between the moving member 21 and the power portion 31 of the force transmitting member 30, and the moving member 21 is drivably connected to the driving member 50 to drive the moving member 21 to move up and down by the driving member 50. When the moving member 21 is switched from the initial position to the final position, the moving member 21 pulls the link member 22 to move, one end of the link member 22 away from the moving member 21 is connected to the force transmitting member 30, the force transmitting member 30 is rotatably mounted on the mounting base 10 through the pivot shaft 60, the force transmitting member 30 is pulled to rotate relative to the mounting base 10 with the pivot shaft 60 as a fulcrum, the power portion 31 is separated from the power portion 31, and the resistance portions 32 approach each other, so that the pair of clamping members 40 are driven to approach each other, and the product 900 placed in the placing area 4001 is clamped.

Preferably, the mounting seat 10 has a sliding slot 1001, and the moving member 21 is slidably mounted on the sliding slot 1001, so that the sliding slot 1001 is used to limit the moving direction of the moving member 21.

As will be understood by those skilled in the art, in an embodiment, when the leading member 20 is in the initial position, the moving element 21 is mounted at the low position of the mounting base 10, when the leading member 20 is at the final position, the moving element 21 is mounted at the high position of the mounting base 10, and when the moving element 21 moves from the low position to the high position, a vertical distance between an end of the link 22 away from the moving element 21 and the moving element 21 is gradually increased. Thus, when the moving member 21 is switched from the initial position to the final position, the moving member 21 moves upward, so as to drive a vertical distance between an end of the link member 22 away from the moving member 21 and the moving member 21 to become gradually larger. In other words, the link 22 pushes the force transmission member 30 to rotate around the pivot shaft 60, so that the resistance portions 32 approach each other, and the clamping member 40 approaches the placing area 4001, and finally clamping is completed on the product 900 placed in the placing area 4001.

It can be understood by those skilled in the art that, in another embodiment, when the entraining member 20 is at the initial position, the moving part 21 is installed at the high position of the mounting base 10, when the entraining member 20 is at the final position, the moving part 21 is installed at the low position of the mounting base 10, and when the moving part 21 moves from the high position to the low position, a vertical distance between an end of the link 22 away from the moving part 21 and the moving part 21 gradually increases. Thus, when the moving member 21 is switched from the initial position to the final position, the moving member 21 moves downward, so as to drive a vertical distance between an end of the link member 22 away from the moving member 21 and the moving member 21 to gradually increase. In other words, the link member 22 pushes the force transmission member 30 to rotate around the pivot shaft 60, so that the resistance portions 32 approach each other, and the clamping members 40 approach the placing area 4001, and finally the clamping is completed for the product 900 placed on the placing area 4001.

In another embodiment, the driving member 20A includes a moving part 21A and a linking part 22A, the moving part 21A is connected to the force transmitting part 30A through the linking part 22A, and the linking part 22A is made of an elastic material. The linkage piece 22A is in a compressed state, the moving piece 21A has two side surfaces 211A, the included angles between the two side surfaces 211A and the bottom surface are equal, the included angle between the side surface 211A and the bottom surface is an acute angle, and the power portion 31A and the side surface 211A are abutted with each other. In this way, when the moving member 21A moves upward, the power portion 31A moves along the side surface 211A, and at this time, the power portion 31A moves to both sides by the pressing force applied by the side surface 211A, and further drives the force transmission member 30A to rotate around the pivot shaft 60A as a fulcrum, so as to drive the resistance portions 32A to approach each other, and finally drives the two clamping members 40A to approach each other to clamp the product 900A. Subsequently, the moving member 21A moves downward, the power portion 31A moves along the side surface 211A, and the link 22A pulls the power portion 31A to return to the original position, at which time the clamping member 40A moves toward both sides and returns to the non-clamping state.

Preferably, the driving member 50 is implemented to include a cylinder, and the moving member 21 is movably connected to a moving end of the cylinder, so that the moving member 21 is moved synchronously by the movement of the moving end of the cylinder.

Further, the centering and clamping device further comprises a stop member 70, the stop member 70 is mounted on the mounting seat 10, the stop member 70 is disposed at the motion track of the moving member 21, and when the moving member 21 moves to contact with the stop member 70, the stop member 70 stops the movement of the moving member 21, so as to limit the moving stroke of the moving member 21, and finally limit the distance to move to the placing area 4001 when the pair of clamping members 40 clamp.

In an embodiment, the bringing member 20 is at the initial position, the moving element 21 is at the high position, when the bringing member 20 is at the final position, the moving element 21 is at the low position, and when the moving element 21 moves from the high position to the low position, and a vertical distance between an end of the link 22 away from the moving element 21 and the moving element 21 becomes gradually larger, the stopper 70 is disposed above the moving element 21, so as to limit a maximum value of the moving element 21 moving from the low position to the high position.

In another embodiment, the driving member 20 is at the initial position, the moving element 21 is at the high position, the moving element 21 is at the low position when the driving member 20 is at the final position, and when the moving element 21 moves from the high position to the low position and the vertical distance between one end of the link 22 away from the moving element 21 and the moving element 21 becomes gradually larger, the stop element 70 is disposed below the moving element 21, so as to limit the maximum value of the moving element 21 moving from the high position to the low position

Preferably, the stopper 70 is movably connected to the mounting seat 10, so that the moving range of the moving member 21 is adjusted by the movement of the stopper 70, and further, the distance between the two clamping members 40 is adjusted, and finally, the products 900 with different sizes can be clamped, and the products 900 are protected.

It will be understood by those skilled in the art that the stop member 70 can be, but not limited to, implemented as a threaded rod, the mounting seat 10 has a threaded hole adapted to the threaded rod, and the length of the threaded rod extending out of the threaded hole is adjusted by adjusting the threaded rod to be inserted into the threaded hole to different depths, thereby limiting the moving range of the moving member 21.

Further, the centering and clamping device further comprises a bidirectional adjusting piece 80, the clamping piece 40 is movably connected to the force transmission piece 30, the bidirectional adjusting piece 80 is arranged between the bottom wall of the clamping piece 40 and the force transmission piece 30 and between the side wall of the clamping piece 40 and the force transmission piece 30, the position of the clamping piece 40 is adjusted in the horizontal direction and the vertical direction in a bidirectional mode, clamping surface errors caused by problems of field processing and the like are solved, the clamping piece 40 is enabled to be attached to the product 900 more effectively, and damage to the impression of the product 900 is reduced.

Preferably, the bi-directional adjustment member 80 is implemented to include at least one spring and at least one spacer, the clamping member 40 being movably coupled to the mounting block 10 by the spring, and the position of the clamping member 40 relative to the mounting block 10 being adjusted by inserting different numbers of spacers between the clamping member 40 and the mounting block 10.

The application method of the centering and clamping device mainly comprises the following steps:

the driving member 50 drives the driving member 20 to move, so as to link the force transmission member 30 to rotate around the pivot shaft 60 as a pivot, and further switch the clamping members 40 from the non-clamping state to the clamping state, that is, the pair of clamping members 40 approach each other toward the placing area 4001, and further clamp the product 900 placed in the placing area 4001.

Preferably, the stopper 70 limits the moving range of the moving member 21, so as to limit the moving distance of the clamping member 40, and further enable the clamping member 40 to clamp the products 900 with different sizes.

Preferably, the bidirectional adjusting member 80 adjusts the vertical and horizontal positions of the clamping member 40, and then adjusts the position of the clamping member 40 in a bidirectional manner, thereby solving the error of the clamping position caused by problems such as field processing.

It will be understood by those skilled in the art that the embodiments of the present invention as described above and shown in the drawings are given by way of example only and are not limiting of the present invention. The advantages of the present invention are already complete and effectively realized. The functional and structural principles of the present invention have been shown and described in the embodiments without departing from the principles, embodiments of the present invention may have any deformation or modification.

Claims

1. Centering clamping device, centering clamping device is used for centering centre gripping to a product, its characterized in that, centering clamping device includes:

a pivotal shaft;

a mounting base;

a driving member;

a driving member driveably connected to the driving member;

a pair of force transmission members, rotatably mounted to the mounting base through a pair of pivot shafts, and connected to each other through the driving member, wherein the driving member is configured to move in a manner that the force transmission members rotate around the pivot shafts as pivots, the force transmission members define a power portion and a resistance portion, the resistance portion is formed by extending the power portion, the vertical distance between a power line applied to the power portion and the pivot shafts is defined as L1, the vertical distance between the power line applied to the resistance portion and the pivot shafts is defined as L2, and L1 is greater than L2, the driving member is disposed at an end portion of the mounting base close to the power portion, and the resistance portion of the force transmission members is configured to clamp the product with a greater force than the force applied to the power portion when a small force is applied to the power portion to rotate the force transmission members relative to the mounting base by movement of the driving member based on a lever principle;

2. The centering and clamping device as claimed in claim 1, wherein said driving member includes a moving member and a linking member, said linking member is pivotally connected between said moving member and said power portion of said force transmitting member, said moving member is drivably connected to said driving member, and when said moving member is switched from said initial position to said final position, said moving member pulls said linking member to move, said linking member pulls said force transmitting member to rotate relative to said mounting base about said pivot axis, and said power portions move away from each other, said resistance portions move toward each other, thereby moving said pair of clamping members toward each other.

3. The centering and clamping device as claimed in claim 2, wherein said moving member is mounted at a high position of said mounting base when said entraining member is at said initial position, said moving member is mounted at a low position of said mounting base when said entraining member is at said final position, and a vertical distance between an end of said link member away from said moving member and said moving member is gradually increased when said moving member is moved from the high position to the low position.

4. The centering and clamping device as claimed in claim 2, wherein said moving member is mounted to a low position of said mounting seat when said entraining member is in said initial position, said moving member is mounted to a high position of said mounting seat when said entraining member is in said final position, and a vertical distance between an end of said link member away from said moving member and said moving member is gradually increased when said moving member moves from said low position to said high position of said mounting seat.

5. The centering and clamping device as claimed in claim 4, further comprising a stopper installed at said mounting seat, said stopper being provided at a locus of motion of said moving member and stopping a movement of said moving member when said moving member moves to contact said stopper, thereby defining a moving distance of said moving member.

6. The centering and clamping device as claimed in claim 2, wherein said mounting seat has a slide groove, and said moving member is slidably mounted to said slide groove.

7. The centering and clamping device as claimed in claim 6, wherein the pair of force transmitting members are of the same size and are symmetrically distributed with respect to the central axis of the driving member, and the pair of clamping members are of the same size and are symmetrically distributed with respect to the central axis of the driving member.

8. The centering gripping device of claim 5, wherein said stopper is movably connected to said mount to adjust a moving range of said moving member by movement of said stopper.

9. The centering and clamping device as claimed in claim 8, further comprising a bi-directional adjustment member, wherein said clamping member is movably connected to said force transmitting member, said bi-directional adjustment member being disposed between a bottom wall of said clamping member and said force transmitting member and between a side wall of said clamping member and said force transmitting member for bi-directional adjustment of the position of said clamping member in both horizontal and vertical directions.

10. The centering and clamping device as claimed in claim 1, wherein said driving member includes a moving member and a linking member, said moving member is connected to said force transmitting member through said linking member, said linking member is made of elastic material, said linking member is in a compressed state, said moving member has two side surfaces, the included angle between said two side surfaces and the bottom surface is equal, the included angle between said side surfaces and said bottom surface is an acute angle, and said power portion and said side surfaces abut against each other.