CN216360242U

CN216360242U - FPC clamping device

Info

Publication number: CN216360242U
Application number: CN202123042254.4U
Authority: CN
Inventors: 胡海东; 李大凯; 徐威; 吴文杰
Original assignee: Kunshan Hostar Intelligence Technology Co ltd
Current assignee: Kunshan Hongshida Intelligent Technology Co ltd
Priority date: 2021-12-06
Filing date: 2021-12-06
Publication date: 2022-04-22
Anticipated expiration: 2031-12-06

Abstract

The utility model discloses an FPC clamping device which comprises a clamping seat and two groups of clamping pieces, wherein each group of clamping pieces can be arranged on the clamping seat in a relatively rotating mode around a rotating center line, the rotating center lines of the two groups of clamping pieces are parallel to each other and are positioned in a virtual plane, each group of clamping pieces is provided with a first end portion and a second end portion which are respectively arranged on two sides of the rotating center line, a clamping space is formed between the two groups of first end portions, the clamping device further comprises a clamping driving assembly, the clamping driving assembly comprises a matching piece, the matching piece can be arranged on the clamping seat in a linear motion mode along a first direction, the first direction is intersected with the virtual plane, the matching piece at least comprises a clamping position and a releasing position on the clamping seat, and when the matching piece is positioned at the clamping position and/or the releasing position, the matching piece is matched with the two groups of second end portions simultaneously. This FPC clamping device compact structure and cooperation are ingenious, and accurate control is changeed to the centre gripping degree, and occupies small, production running cost is low, can satisfy FPC's precision finishing demand.

Description

FPC clamping device

Technical Field

The utility model relates to the technical field of electronic product processing, in particular to an FPC clamping device.

Background

In the production process of precise electronic products, some small-sized workpieces are often required to be clamped, and the workpieces are further driven to rotate, lift, translate and the like. The Flexible Printed Circuit (FPC) is a special workpiece, the FPC is small in size, thin and soft, if the FPC is improperly clamped, the problems of deformation, bending, offset, dislocation and the like are very easy to occur, the precision requirement of electronic products cannot be met, and even the damage to circuits in the FPC can be caused.

In the prior art, a common FPC clamping device generally comprises two clamping jaws used in cooperation, each clamping jaw is driven to move linearly by one cylinder, and two groups of clamping jaws can be close to each other or be far away from each other relatively, so that clamping and releasing of a workpiece are realized. However, such a clamping device often cannot meet the precision requirements for FPC processing. On one hand, two clamping jaws respectively driven by two groups of cylinders are mutually independent, the clamping distance is difficult to accurately control, and the problems of clamping, loosening or over-tightening are easy to occur, so that the workpiece falls off or is extruded and damaged; on the other hand, the provision of two sets of cylinders necessarily increases the cost and bulk of the clamping device, which is difficult to integrate in some devices with limited space, thus limiting its use.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a clamping device which is accurate in clamping, simple in structure, small in occupied volume and suitable for an FPC (flexible printed circuit), aiming at the defects in the prior art.

In order to achieve the purpose, the utility model adopts the technical scheme that:

a FPC clamping device comprises a clamping seat and two groups of clamping pieces, wherein each group of clamping pieces can be arranged on the clamping seat in a way of relatively rotating around a rotation center line, the rotation center lines of the two groups of clamping pieces are parallel to each other, the two groups of rotation center lines are positioned in a virtual plane, each group of clamping pieces is provided with a first end part and a second end part which are respectively arranged on two sides of the rotation center line, the two groups of first end parts are positioned on the same side of the virtual plane, a clamping space is formed between the two groups of first end parts, the clamping device further comprises a clamping driving assembly used for driving the clamping space to increase or decrease, the clamping driving assembly comprises a matching piece, the matching piece can be arranged on the clamping seat in a linear motion manner along a first direction, the first direction is intersected with the virtual plane, and the matching piece at least has a clamping position and a releasing position on the clamping seat, when the fitting piece is positioned at the clamping position, the volume of the clamping space is smaller than that of the fitting piece when the fitting piece is positioned at the releasing position, and when the fitting piece is positioned at the clamping position and/or the releasing position, the fitting piece is simultaneously matched with the two groups of second end parts.

Preferably, the first direction is perpendicular to the virtual plane, and the fitting parts and the two sets of the second end parts are located on the same side of the virtual plane.

Preferably, the clamping device further comprises a limiting block, the limiting block is fixedly arranged on the clamping seat and located in the clamping space, and when the matching piece is located at the clamping position, the two groups of first end portions are respectively abutted against two different sides of the limiting block.

Further preferably, the stopper has and is used for forming spacing groove to FPC, the spacing groove has end spacing face, side spacing face and the side guide face that meets in proper order, wherein the extending direction of end spacing face is on a parallel with the virtual plane, the side spacing face reach the extending direction of side guide face all with the virtual plane is crossing, just the side spacing face with contained angle between the side guide face is greater than 180.

Preferably, the matching piece is provided with two groups of matching inclined planes which are respectively arranged at two sides of the width direction of the matching piece, the two groups of matching inclined planes gradually incline to be close to or gradually incline to be away from each other along the first direction, and the second end part of each group is matched and abutted against the matching inclined plane at the same side.

Further preferably, the fitting piece has a fitting groove with an opening facing the virtual plane, the two sets of fitting inclined surfaces are respectively arranged on the inner walls of two opposite sides of the fitting groove, and the two sets of fitting inclined surfaces gradually incline to each other along a first direction gradually away from the virtual plane.

Further preferably, each group of the second end portions is provided with a guide wheel, the guide wheels can be arranged on the clamping piece in a relatively rotating mode around a first central line, the first central line is parallel to the rotating central line, and each group of the guide wheels are arranged on the matching inclined surfaces on the same side in a rolling matching mode.

Preferably, every group the holder all has the branch to locate first section and the second section of the different both sides of rotation center line, first end is located the tip of first section, the second end is located the tip of second section, the extending direction of first section with the contained angle between the extending direction of second section is less than 180.

Further preferably, the clamping driving assembly further comprises a compression spring for providing acting force required by the two groups of first end portions to approach each other, and two end portions of the compression spring are respectively connected to the two groups of second segments.

Preferably, the clamping driving assembly further comprises a driving cylinder for driving the mating member to move linearly, and the driving cylinder is fixedly arranged on the clamping seat.

Preferably, the clamping drive assembly further comprises a resilient member for providing the force required to move the two sets of first ends towards or away from each other.

Preferably, the clamping device further comprises a base, the clamping seat is arranged on the base in a manner of relative rotation around a second central line, and the clamping device further comprises a rotating cylinder for driving the clamping seat to rotate.

Due to the application of the technical scheme, the FPC clamping device provided by the utility model has a compact structure and ingenious matching, can realize synchronous clamping and releasing of the two groups of clamping pieces only through the linear motion matching piece driven by one air cylinder, is easy to accurately control the clamping distance, occupies small space, is low in production and operation cost, can meet the requirements of precision processing of FPCs, and can be integrated in various types of FPC processing equipment.

Drawings

FIG. 1 is a perspective view of a clamping device in accordance with an embodiment of the present invention;

FIG. 2 is a partial perspective view of the clamping device of the present embodiment;

FIG. 3 is a front view of the clamping device of this embodiment with the engagement member in the release position;

FIG. 4 is an enlarged schematic view of FIG. 3 at A;

FIG. 5 is a schematic partial front view of the clamping device of this embodiment with the mating member in a clamping position;

FIG. 6 is a schematic front view of the clamping device of this embodiment, wherein the clamping base is rotated 90 counterclockwise;

wherein: 100. FPC; 10. a clamping member; 11. a first stage; 11a, a first end portion; 12. a second stage; 12a, a second end; 121. a guide wheel; 20. a limiting block; 20a, a bottom limiting surface; 20b, a side limiting surface; 20c, a side guide surface; 30. a mating member; 30a, a fitting groove; 31. a mating bevel; 32. a driving cylinder; 40. a pressure spring; 50. a clamping seat; 60. a base; 70. a rotating cylinder; 1001. a center line of rotation; 1002. a virtual plane; 1003. a first centerline; 1004. a second centerline; x, the first direction.

Detailed Description

Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings so that the advantages and features of the utility model may be more readily understood by those skilled in the art.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", "left-right direction", "height direction", "front-back direction", etc. indicate the orientation or positional relationship based on fig. 1 only for the convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, only have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

Referring to fig. 1 and 2, a clamping device for clamping an FPC100 and driving the FPC100 to rotate includes a base 60 and a clamping seat 50, wherein the clamping seat 50 is disposed on the base 60 to rotate around a second center line 1004, and a rotating cylinder 70 for driving the clamping seat 50 to rotate is further fixed on the base 60. The clamping seat 50 is further provided with a clamping piece 10, a limiting block 20, a matching piece 30, a driving cylinder 32, a pressure spring 40 and the like, wherein the matching piece 30, the driving cylinder 32 and the pressure spring 40 form a clamping driving assembly.

Specifically, each group of clamping members 10 is disposed on the clamping base 50 in a manner that the clamping members can rotate relatively around a rotation center line 1001, the two groups of rotation center lines 1001 are parallel to each other and are located in a virtual plane 1002, in this embodiment, the two groups of clamping members 10 are disposed at intervals along the vertical direction, and the virtual plane 1002 is a vertical plane perpendicular to the horizontal plane.

Each set of clamping members 10 has a first section 11 and a second section 12 respectively disposed on two different sides of the rotation center line 1001, wherein one end of the first section 11 is a first end 11a, one end of the second section 12 is a second end 12a, and the two sets of first ends 11a are located on the same side (left side in the figure) of the virtual plane 1002, so that a clamping space is formed between the two sets of first ends 11a, and the clamping on the FPC100 in the length direction can be formed. The included angle between the extending directions of the first section 11 and the second section 12 of each group of clamping pieces 10 is smaller than 180 degrees, namely, the two groups of first sections 11 are gradually close to each other from the virtual plane 1002 to the extending direction of the first end 11a, so that the clamping is more facilitated, and the clamping driving operation is more labor-saving. In this embodiment, each set of second end portions 12a has a guide wheel 121, the guide wheels 121 are relatively rotatably disposed on the clamp 10 about a first centerline 1003, and the first centerline 1003 is parallel to the rotation centerline 1001.

The limiting block 20 is fixedly arranged on the clamping seat 50 and is located in the clamping space, the whole limiting block 20 is in a cuboid column shape extending along a first direction X, and the first direction X is perpendicular to the virtual plane 1002. One side of the stopper 20 close to the first end 11a has a stopper groove for stopping the FPC100, and the stopper groove has a bottom stopper surface 20a, a side stopper surface 20b, and a side guide surface 20c, which are connected in this order. The extending direction of the bottom limiting surface 20a is parallel to the virtual plane 1002, and is used for forming support and limiting along the thickness direction of the FPC 100; the extending directions of the side limiting surface 20b and the side guide surface 20c are intersected with the virtual plane 1002, and the side limiting surface 20b is perpendicular to the bottom limiting surface 20a and used for limiting along the width direction of the FPC 100; the included angle between the side limiting surface 20b and the side guide surface 20c is larger than 180 degrees, namely the side guide surface 20c extends obliquely from the side limiting surface 20b to the direction gradually far away from the bottom limiting surface 20a, so as to provide guidance for the FPC100 entering the limiting groove and ensure that the FPC100 can accurately abut against the bottom limiting surface 20a and the side limiting surface 20 b.

Referring to fig. 3 to 5, the clamping driving assembly is used to drive the clamping space to increase or decrease, so as to clamp and release the FPC 100. Wherein, the engaging member 30 is disposed on the holder 50 to be linearly movable along the first direction X, and the driving cylinder 32 is disposed on the holder 50 to drive the engaging member 30 to linearly move. Thus, the engaging member 30 has at least a clamping position and a releasing position on the clamping seat 50, in this embodiment, the clamping position is located on a side relatively far from the virtual plane 1002 (as shown in fig. 5), and at this time, the clamping space is small, and the two sets of first end portions 11a form a clamping for the FPC 100; the release position is located on a side relatively close to the virtual plane 1002 (see fig. 3 and 4), and the holding space is large, and the two sets of first ends 11a are relatively opened, so that the FPC100 can be released.

In this embodiment, the fitting members 30 are located on the same side (right side in the figure) of the virtual plane 1002 as the two sets of second end portions 12 a. The engaging piece 30 has an engaging groove 30a opening toward the virtual plane 1002, the engaging groove 30a has engaging inclined surfaces 31 on two opposite inner walls in the width direction (i.e., the up-down direction) of the engaging groove 30a, the two groups of engaging inclined surfaces 31 gradually incline toward each other in the first direction X gradually away from the virtual plane 1002, and the engaging groove 30a is substantially in the shape of an isosceles trapezoid with a base facing the virtual plane 1002. The two sets of guide wheels 121 are located in the matching grooves 30a and are arranged on the same side of the matching inclined surface 31 in a rolling matching manner.

In this embodiment, the compression spring 40 is used to provide the force required to move the two sets of first end portions 11a toward each other. The pressure spring 40 is arranged at one end part of the limiting block 20 far away from the limiting groove, the pressure spring 40 extends along the up-down direction, and the upper end part and the lower end part of the pressure spring 40 are respectively connected to the two groups of second sections 12, so that the two groups of first end parts 11a are indirectly close to each other by pushing the two groups of second sections 12 to be far away from each other.

The working principle of the clamping device in this embodiment is specifically described below:

referring to fig. 3 and 4, when the FPC100 to be clamped is not placed in place, the fitting member 30 is located at the release position, the pressure spring 40 is compressed, the two sets of guide wheels 121 penetrate into the fitting grooves 30a and approach each other, the two sets of first end portions 11a are relatively opened, the clamping space is enlarged, and an external mechanism can place the FPC100 to be clamped into the clamping space.

Referring to fig. 5, after the FPC100 to be clamped enters the clamping space, the FPC100 can enter the bottom of the limiting groove along the first direction X under the guidance of the side guide surface 20c, and is positioned by the bottom limiting surface 20a and the side limiting surface 20 b. At the same time, the driving cylinder 32 drives the engaging member 30 to move away from the virtual plane 1002 to the clamping position, and accordingly, the two sets of guide wheels 121 roll along the engaging inclined surfaces 31 toward the opening of the engaging groove 30a, respectively. The compressed spring 40 gradually releases and drives the two sets of first end portions 11a to approach each other until the two sets of first end portions 11a abut against the upper and lower sides of the limiting block 20 respectively, and the first end portions 11a clamp the FPC100 along the length direction thereof. Because stopper 20's limiting displacement, holder 10 can control the centre gripping distance accurately, can not appear the centre gripping tension and lead to FPC100 extrusion deformation's problem, and under the spacing support of spacing groove, FPC 100's position relatively fixed is difficult for the deflection.

Referring to fig. 6, the clamping device in this embodiment can further drive the FPC100 to rotate, so as to realize the functions of bending and attaching the FPC 100. After the FPC100 is clamped in place, the rotating cylinder 70 drives the clamping seat 50 and the clamping member 10, the limiting block 20, the fitting member 30 and the like arranged thereon to rotate integrally around the second center line 1004, and the fitting member 30 is kept in the clamping position during the rotation process, so that the FPC100 can be stably rotated in place along with the clamping seat 50. Of course, the rotation angle of the holder 50 may be set to any angle according to actual needs.

In other embodiments, if the clamped FPC100 needs to be moved to other positions, further, a driving mechanism for translation, lifting, etc. may be disposed on the base 60, and only the clamping seat 50 needs to be driven to move, so that the FPC100 can be stably moved without worrying about deflection, dislocation, etc. during the movement,

in conclusion, the FPC clamping device of this embodiment, simple structure, occupation space is little, only needs to set up one and drives actuating cylinder 32 and just can realize FPC 100's accurate centre gripping, and the centre gripping is efficient, is particularly suitable for the limited FPC processing equipment in space.

The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a FPC clamping device which characterized in that: the clamping device comprises a clamping seat and two groups of clamping pieces, wherein each group of clamping pieces can be arranged on the clamping seat in a way of relatively rotating around a rotation center line, the rotation center lines of the two groups of clamping pieces are parallel to each other, the two groups of rotation center lines are positioned in a virtual plane, each group of clamping pieces is provided with a first end part and a second end part which are respectively arranged on two sides of the rotation center line, the two groups of first end parts are positioned on the same side of the virtual plane, a clamping space is formed between the two groups of first end parts, the clamping device further comprises a clamping driving assembly used for driving the clamping space to increase or decrease, the clamping driving assembly comprises a matching piece, the matching piece can be arranged on the clamping seat in a way of linear motion along a first direction, and the first direction is intersected with the virtual plane,

the fitting piece at least comprises a clamping position and a releasing position on the clamping seat, the volume of the clamping space when the fitting piece is positioned at the clamping position is smaller than that of the clamping space when the fitting piece is positioned at the releasing position, and the fitting piece is simultaneously matched with the two groups of second end parts when the fitting piece is positioned at the clamping position and/or the releasing position.

2. The FPC holding device of claim 1, wherein: the first direction is perpendicular to the virtual plane, and the fitting piece and the two groups of second end parts are positioned on the same side of the virtual plane.

3. The FPC holding device of claim 1, wherein: the clamping device further comprises a limiting block, the limiting block is fixedly arranged on the clamping seat and located in the clamping space, and when the matching piece is located at the clamping position, the two groups of first end portions respectively abut against two different sides of the limiting block.

4. The FPC holding device of claim 3, wherein: the stopper has and is used for forming spacing groove to FPC, the spacing groove has end spacing face, side spacing face and the side guide face that meets in proper order, wherein the extending direction of end spacing face is on a parallel with virtual plane, the side spacing face reaches the extending direction of side guide face all with virtual plane intersects, just the side spacing face with contained angle between the side guide face is greater than 180.

5. The FPC holding device of claim 1, wherein: the matching piece is provided with two groups of matching inclined planes which are respectively arranged at two sides of the width direction of the matching piece, along the first direction, the two groups of matching inclined planes gradually incline to be close to or gradually incline to be away from, and the second end parts of each group are matched and abutted on the matching inclined planes at the same side.

6. The FPC clip of claim 5, wherein: the matching piece is provided with a matching groove with an opening facing the virtual plane, the two groups of matching inclined planes are respectively arranged on the inner walls of two opposite sides of the matching groove, and the two groups of matching inclined planes are gradually inclined and close to each other along the first direction which is gradually far away from the virtual plane.

7. The FPC clip of claim 5, wherein: each group of the second end parts are provided with guide wheels, the guide wheels can be arranged on the clamping piece in a relative rotating mode around a first central line, the first central line is parallel to the rotating central line, and each group of the guide wheels are arranged on the matching inclined planes on the same side in a rolling matching mode.

8. The FPC holding device of claim 1, wherein: every group the holder all has the branch to locate first section and the second section of the different both sides of rotation center line, first end is located first section's a tip, the second end is located the tip of second section, first section the extending direction with contained angle between the extending direction of second section is less than 180.

9. The FPC clip of claim 8, wherein: the clamping driving assembly further comprises compression springs used for providing acting force required by the two groups of first end portions to be close to each other, and two end portions of each compression spring are connected to the two groups of second sections respectively.

10. The FPC holding device according to any one of claims 1 to 9, wherein: the clamping driving assembly further comprises a driving cylinder for driving the matching piece to move linearly, and the driving cylinder is fixedly arranged on the clamping seat; and/or the presence of a gas in the gas,

the clamping driving assembly further comprises an elastic piece used for providing acting force required by the two groups of first end parts to approach or relatively move away from each other; and/or the presence of a gas in the gas,

the clamping device further comprises a base, the clamping seat can be arranged on the base in a relative rotation mode around a second central line, and the clamping device further comprises a rotary cylinder used for driving the clamping seat to rotate.