CN113753569A

CN113753569A - Clamping device

Info

Publication number: CN113753569A
Application number: CN202111157008.5A
Authority: CN
Inventors: 刘孝国
Original assignee: Inventec Pudong Technology Corp
Current assignee: Inventec Pudong Technology Corp; Inventec Chongqing Corp
Priority date: 2021-09-30
Filing date: 2021-09-30
Publication date: 2021-12-07

Abstract

The invention provides a clamping device which comprises a base, at least two clamping pieces, a driving source and a transmission mechanism, wherein each clamping piece is movably arranged on the base, the transmission mechanism is arranged between the clamping pieces, the driving source drives one clamping piece to move towards the side of reducing a clamping space or increasing the clamping space, meanwhile, the other clamping pieces move towards the side of reducing the clamping space or moving towards the side of increasing the clamping space under the driving of the transmission mechanism, and a product cannot be opened in the process of being clamped and moved by each clamping piece, so that the safety of the product in the clamping and moving process is improved, and meanwhile, the clamping device has the advantages of light weight and convenience in assembly.

Description

Clamping device

Technical Field

The invention belongs to the field of notebook computer production equipment, and particularly relates to a clamping device.

Background

In the production process of the notebook computer, the notebook computer needs to be detected, when the notebook computer is detected, the notebook computer to be detected needs to be transported to test equipment outside a production line from the production line for testing, at present, a sucker is generally adopted for transporting, namely, the sucker is installed on a mechanical arm, the notebook computer is adsorbed on the sucker through the sucker and then moves to a corresponding position along with the mechanical arm, and in the transporting process, the notebook computer can be automatically opened to damage products.

Disclosure of Invention

In view of the above-mentioned shortcomings of the prior art, the present invention is directed to a clamping device, which will not open a notebook computer after the clamping device is clamped to the notebook computer.

To achieve the above and other related objects, the present invention provides a clamping device comprising:

a base;

the clamping pieces are movably arranged on the base and used for clamping a product;

the driving source is arranged on the base and is used for driving the clamping piece to move;

the transmission mechanism is arranged between the clamping pieces, is in transmission connection with the clamping pieces and is used for driving the other clamping pieces to move along with the clamping pieces driven by the driving source;

when the driving source drives the clamping pieces to move towards the side of the reduced clamping space, the other clamping pieces move towards the side of the reduced clamping space simultaneously under the driving of the transmission mechanism, so that the product is clamped in the clamping space by the clamping pieces, and when the driving source drives the clamping pieces to move towards the side of the increased clamping space, the other clamping pieces move towards the side of the increased clamping space simultaneously under the driving of the transmission mechanism, so that the product is separated from the clamping pieces.

Optionally, each the holder has two, is first holder and second holder respectively, first holder and second holder set gradually on the base along first direction, and all can follow first direction reciprocating motion, drive mechanism includes:

the rotating connecting piece is arranged on the base in a circumferential rotating mode, is positioned between the first clamping piece and the second clamping piece and comprises a first end and a second end which are arranged oppositely;

the two ends of the first connecting piece are respectively hinged to the first end of the rotating connecting piece and the first clamping piece;

the two ends of the second connecting piece are hinged to the second end of the rotating connecting piece and the second clamping piece respectively;

when the driving source drives the first clamping piece to move close to or away from the second clamping piece along the first direction, the first connecting piece is used for transmission, the rotating connecting piece rotates circumferentially, and the second connecting piece is used for transmission, so that the second clamping piece moves close to or away from the first clamping piece along the first direction, and a product is clamped in the clamping space or separated from the clamping space by the first clamping piece and the second clamping piece.

Optionally, the base is provided with a central shaft, and the rotating connecting member is rotatably sleeved on the central shaft.

Optionally, a bearing is disposed between the rotating connecting member and the central shaft, an inner ring of the bearing is sleeved on the central shaft, and an outer ring of the bearing is embedded in the rotating connecting member.

Optionally, the base is further provided with a support table, the support table is sleeved on the central shaft and supports against an inner ring of the bearing.

Optionally, the driving source is an air cylinder, and a piston rod of the air cylinder pushes the first clamping member to move towards or away from the second clamping member.

Optionally, the clamping piece comprises a sliding seat in sliding fit with the base and a clamping claw arranged on the sliding seat, a sliding rail in sliding fit with the sliding seat is arranged on the base, the sliding rail is arranged on the base along a first direction, a sliding groove is arranged on the sliding seat, and the sliding groove is in sliding fit with the sliding rail;

wherein, the sliding seat is hinged on the connecting piece.

Optionally, the gripper jaw is L-shaped, and includes a gripper plate for gripping a product and a limiting plate for holding the product, the gripper plate and the limiting plate are integrally formed.

Optionally, the clamping device further comprises a detection assembly, the detection assembly comprises a detection seat arranged on the base and a detection piece arranged on the detection seat, and after the product is located in the clamping space, the detection piece detects the position of the product in the clamping space.

Optionally, the detection piece is a sucker, a vacuum measuring meter is arranged in the sucker, after the product is located in the clamping space, the sucker is adsorbed on the product, and the value of the vacuum measuring meter reaches a set value.

As described above, the clamping device of the present invention has the following advantages:

adopt this clamping device centre gripping product, in the centre gripping removal in-process, the product can not be opened, avoid opening because of the product and damage the product, thereby the security of centre gripping transport has been improved, remove through each holder and reduce the centre gripping space, the product is fixed by each holder centre gripping, make this clamping device can satisfy the clamping action to the product of multiple model, the practicality has been strengthened, remove through a driving source direct drive holder, frictional force has not only been reduced, avoid the power loss of driving source, and simultaneously, still have simple structure, light in weight, be convenient for the advantage of assembly.

Drawings

FIG. 1 is an exemplary isometric view of a product held by the holding device of the present invention;

FIG. 2 is an isometric view of an exemplary clamping device of the present invention;

FIG. 3 is an exploded view of the clamping device of FIG. 2;

FIG. 4 is an isometric view of a portion of the structure of the clamping device of FIG. 2;

FIG. 5 is an isometric view of the clamp of FIG. 2;

FIG. 6 is an elevational view of an exemplary clamping device of the present invention;

FIG. 7 is a top view of FIG. 6;

FIG. 8 is a cross-sectional view A-A of FIG. 7;

FIG. 9 is a schematic view of the rotary union of FIG. 8;

part number description:

100-a base; 110-a central axis; 111-a fastening screw; 112-a spacing washer; 120-a support table; 130-a slide rail;

200-a clamp; 200 a-a clamping space; 201-a first clamp; 202-a second clamp; 210-a slide mount; 210 a-a chute; 220-a gripper jaw; 220 a-an arc-shaped slot; 221-a clamping plate; 222-a limiting plate;

300-a drive source;

400-a transmission mechanism; 410-a rotational connection; 410 a-a first via; 410 b-bearing bore; 420-a first connector; 430-a second connector;

500-mounting the assembly; 510-a mounting plate; 520-a connecting seat;

600-a bearing;

700-a detection component; 710-a detection seat; 720-detecting element; 721-vacuum gauge;

800-products;

900-limiting column.

Detailed Description

The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will become apparent to those skilled in the art from the present disclosure.

In the following embodiments, the product is a notebook computer, but may also be a keyboard, a case or other articles; the first direction is the direction K in fig. 7, and the second direction is the direction L in fig. 7.

As shown in fig. 1 to 9, the present invention provides a clamping apparatus comprising a base 100, at least two clamping members 200, a driving source 300 and a transmission mechanism 400, wherein the base 100 can be directly mounted on a robot or an intermediate connection member is provided between the base 100 and the robot to allow the base to move along with the robot, each clamping member 200 is movably mounted on the base 100 and each clamping member 200 encloses a clamping space 200a, the transmission mechanism 400 is drivingly connected between each clamping member 200, the driving source 300 is mounted on the base 100 and is used to directly drive one of the clamping members 200 to move toward the reduced clamping space 200a or the increased clamping space 200a, and simultaneously, the remaining clamping members move toward the reduced clamping space 200a or the increased clamping space 200a along with the clamping member driven by the driving source 300 through the transmission mechanism 400, that is, when the driving source 300 drives one of the clamping members to move toward the reduced clamping space 200a, the transmission mechanism 400 transmits the transmission force, and the rest of the clamping members simultaneously move towards the reduced clamping space 200a side, so that the product 800 is clamped and fixed by each clamping member 200, and when the driving source 300 drives one clamping member to move towards the increased clamping space 200a side, the transmission mechanism 400 transmits the transmission force, and the rest of the clamping members simultaneously move towards the increased clamping space 200a side, so that the product 800 is separated from each clamping member 200.

When a product 800 needs to be clamped, firstly, one clamping piece is driven by the driving source 300 to move towards the enlarged clamping space 200a, meanwhile, the other clamping pieces also move towards the enlarged clamping space 200a, so that the clamping space 200a is enlarged, then the clamping device is moved to the position of the product 800 needing to be clamped by the moving manipulator, so that the product 800 is positioned in the clamping space 200a, then, one clamping piece is driven by the driving source 300 to move towards the reduced clamping space 200a, and the other clamping pieces also move towards the reduced clamping space 200a, so that the product 800 is clamped in the clamping space 200a by each clamping piece 200, and finally, the product 800 is moved to a designated position by the manipulator.

Adopt this clamping device centre gripping product 800, in the centre gripping removal in-process, product 800 can not be opened, avoid opening because of product 800 and damage the product, thereby the security of centre gripping transport has been improved, remove through each holder 200 and reduce centre gripping space 200a, product 800 is fixed by each holder 200 centre gripping, make this clamping device can satisfy the clamping action to the product 800 of multiple model, the practicality has been strengthened, move through a driving source 300 direct drive holder 200, for setting up middle transmission structure between driving source 300 and holder 200, frictional force has not only been reduced, avoid the power damage of driving source, and simultaneously, the compactness has still been improved.

In practical implementation, as shown in fig. 2-3, the base 100 is further provided with a mounting assembly 500 for connecting to a robot, the mounting assembly 500 includes a mounting plate 510 and two connecting seats 520, the two connecting seats 520 are connected between the base 200 and the mounting plate 510, and the mounting plate 510 is configured to be mounted on the robot so that the base 100 follows the robot to move; by separately providing the mounting assembly 500 for connecting the robot to the base 100, the structure of the base 100 is simplified, the manufacture of the base 100 is facilitated, and the advantage of easy disassembly and assembly is also provided.

Specifically, this base 100 adopts hollow out construction, has reduced the weight of base, realizes lightweight design demand, simultaneously, has still practiced thrift material cost.

The driving source 300 can be an air cylinder, a hydraulic oil cylinder or other power equipment with linear driving, and compared with a rotary driving device, the linear driving device is adopted, so that the power source 300 with a corresponding driving stroke can be directly selected according to the moving stroke of the clamping piece 200, and the matching is not required to be calculated, thereby not only reducing the calculation time, but also simplifying the transmission structure.

In some embodiments, as shown in fig. 2, 4 and 6, there are two clamping members 200, namely a first clamping member 201 and a second clamping member 202, the first clamping member 201 and the second clamping member 202 are sequentially mounted on the base 100 along a first direction, the first clamping member 201 and the second clamping member 202 can reciprocate on the base 100 along the first direction, the transmission mechanism 400 includes a rotating connector 410, a first connector 420 and a second connector 430, the rotating connector 410 is circumferentially rotatably mounted on the base 100 and is located between the first clamping member 201 and the second clamping member 202, the rotating connector 410 includes a first end and a second end which are oppositely arranged, two ends of the first connector 420 are respectively hinged on the first ends of the first clamping member 201 and the rotating connector 410, two ends of the second connector 430 are respectively hinged on the second end of the rotating connector 410 and the second clamping member 202, the driving source 300 drives the first clamp 201 to move.

When the driving source 300 drives the first clamping member 201 to approach the second clamping member 202 along the first direction, the first clamping member 201 drives the first transmission member 420 to move, meanwhile, the first transmission member 420 drives the rotating connection member 410 to rotate along the direction X in fig. 4, the second connection member 430 rotates along with the rotating connection member 410 and drives the second clamping member 202 to move towards the side close to the first clamping member 201 along the first direction, at this time, the clamping space 200a is reduced, so that the product 800 in the clamping space 200a is clamped and fixed by the first clamping member 201 and the second clamping member 202; when the driving source 300 drives the first clamping member 201 to move away from the second clamping member 202 along the first direction, the first clamping member 201 drives the first transmission member 420 to move, meanwhile, the first transmission member 420 drives the rotary connecting member 410 to rotate in the reverse direction of the direction X in fig. 4, the second connecting member 430 rotates along with the rotary connecting member 410, and drives the second clamping member 202 to move away from the first clamping member 201 side along the first direction, at this time, the clamping space 200a is increased, so that the product 800 clamped by the first clamping member 201 and the second clamping member 202 is released.

Adopt the drive mechanism of this structure, when first holder 201 is driven by driving source 300 and moves, make second holder 202 under drive mechanism 400's transmission, move with first holder 201 simultaneously in opposite directions or back to each other, thereby reduce or increase centre gripping space 200a, can improve the steadiness of first holder 201 and second holder 202 to the product centre gripping, still have simple structure simultaneously, and the manufacturing is convenient for, the advantage of assembly, compact structure is high, for each holder of a plurality of driving source independent drive, adopt the drive mechanism of this structure, and can also reduce production cost.

In the actual implementation process, the rotary connecting piece 410, the first connecting piece 420 and the second connecting piece 430 are all hollow structures, so that the weight is reduced, and raw materials are saved.

In some embodiments, as shown in fig. 3 and 8, the central shaft 110 is mounted on the base 100, the rotating connecting member 410 is provided with a first through hole 410a, and the first through hole 410a is externally sleeved on the central shaft 110, so that the rotating connecting member 410 can rotate around the central shaft 110, and by mounting the central shaft 110 on the base 100, a mounting and positioning position is provided for the rotating connecting member 410, of course, the central shaft 110 can also be mounted on the rotating connecting member 410, and the form of the through hole formed on the base 100 can be selected according to specific requirements.

In some embodiments, as shown in fig. 3 and 8, a bearing 600 is further installed between the rotating connecting member 410 and the central shaft 110, an inner ring of the bearing 600 is sleeved on the central shaft 110, and an outer ring of the bearing 600 is embedded on the rotating connecting member 410; by providing the bearing 600, abrasion between the rotary connecting member 410 and the central shaft 110 is reduced, and the rotary friction is reduced, so that the rotary connecting member 410 rotates smoothly, and the transmission reliability of the transmission mechanism is improved.

In a specific embodiment, as shown in fig. 9, there are two bearings 600, two ends of the first through hole 410a on the rotation connecting member extend outward along the radial direction of the first through hole to form two bearing holes 410b, the two bearings 600 are respectively installed in the bearing holes 410b, and the diameter of the first through hole 410a is smaller than that of the central shaft 110, so that the central shaft 110 is only matched with the inner rings of the two bearings 600 and does not contact with the inner side wall of the first through hole 410a, thereby further reducing friction force and simultaneously avoiding abrasion between the central shaft 110 and the first through hole 410 a.

In some embodiments, as shown in fig. 8, the supporting platform 120 is further installed on the base 100, and the supporting platform 120 is sleeved on the central shaft 110 and supported against the inner ring of the lower bearing 600, by providing the supporting platform 120 for supporting, the outer ring of the lower bearing and the rotating connecting member 410 will not contact with the base 100, so as to eliminate the abrasion of the rotating connecting member 410 and the bearing 600 on the base 100, and at the same time, to improve the smoothness of the rotation of the rotating member.

In a specific embodiment, as shown in fig. 8, the supporting platform 120 is a conical platform, a small end of the conical platform is in contact fit with an inner ring of a bearing located at the lower side, and a large end of the conical platform is in contact fit with the base 100, so that under the supporting effect of the inner ring of the bearing, the contact area with the base is increased, and the stress received by the base 100 is reduced.

Specifically, as shown in fig. 8, a fastening screw 111 and a limit washer 112 are further mounted on the central shaft 100, the limit washer 112 is disposed on the inner ring of the upper bearing, and the fastening screw 111 passes through the limit washer 112 to be connected to the central shaft 110 and press the limit washer 112 against the inner ring of the bearing.

In some embodiments, as shown in fig. 6, the driving source 300 is an air cylinder, which is installed on the base 100 and located at one side of the clamping member 200, so as to improve the compactness, and a piston rod of the air cylinder is connected to the first clamping member 201 and is used for pushing the first clamping member 201 to move toward or away from the second clamping member 202; the air cylinder is adopted for driving, and the air cylinder has the advantages of reliable driving, light weight and low cost.

In some embodiments, as shown in fig. 2 to 5, the clamping member 200 includes a sliding seat 210 slidably engaged with the base 100 and a clamping claw 220 installed on the sliding seat 210, the sliding seat 210 is hinged to the first connecting member 420 or the second connecting member 430, a sliding rail 130 for slidably engaging with the sliding seat 210 is installed on the base 100, the sliding rail 130 is installed on the base 100 along the first direction, a sliding slot 210a is formed on the sliding seat 210, and the sliding slot 210a slidably engages with the sliding rail 130, so that the sliding seat 210 can slide on the sliding rail 130.

In an actual implementation process, there are two slide rails 130, which are sequentially installed on the base 100 along the second direction, and correspondingly, two sliding grooves 210a for sliding fit with the two slide rails 130 are formed on the clamping member 200, and the two slide rails 130 are respectively sliding fit with the two sliding grooves 210a, so that by adopting the structure, the sliding reliability of the clamping member 220 can be improved.

Specifically, as shown in fig. 3, the base 100 is further provided with a plurality of limiting posts 900 for limiting the movement of the sliding seat, and the plurality of limiting posts 900 are respectively located at two ends of the sliding rail 130 to limit the movement of the sliding seat 210, so as to prevent the sliding seat 210 from separating from the sliding rail 130 during the movement.

In some embodiments, as shown in fig. 5, the gripper 220 is L-shaped, and includes a gripper plate 221 for gripping a product and a limiting plate 222 for lifting the product, the gripper plate 221 is mounted on the sliding seat 210 and moves along with the sliding seat 210, and the gripper with this structure grips and fixes the product by the gripper plate, and simultaneously lifts the product 800 by the limiting plate 222 at the lower end, so as to prevent the product 800 and the gripper 220 from sliding with each other, and simultaneously prevent the product from opening.

The clamping plate 221 and the limiting plate 222 can be integrally formed, and can also be fixedly connected through bolt connection, clamping connection or other forms.

In specific implementation process, the position that is used for the centre gripping product on the grip block 221 still is provided with the protection shield that is used for protecting product 800, through setting up this protection shield, at the in-process of centre gripping transport product, avoids product and grip block direct contact and wearing and tearing product, plays the guard action to the product, and this protection shield is the rubber slab, adopts the rubber slab, plays under the guard action to the product, still has low cost's benefit.

Specifically, holder 200 has seted up arc wall 220a along the second direction, sets up this arc wall 220a, not only has weight reduction, practices thrift the advantage of cost, simultaneously, has still reduced the planar area who is used for with the product contact on the limiting plate 222, under the effect that does not influence limiting plate 222 and hold up the product, has still reduced the processing degree of difficulty (planar area is big more, and its plane degree is difficult to guarantee, leads to the processing degree of difficulty big more).

In some embodiments, as shown in fig. 1-2, the clamping device further includes a detection assembly 700, the detection assembly 700 includes a detection seat 710 mounted on the base 100 and a detection member 720 mounted on the detection seat 710, by providing the detection seat 710, the arrangement space of the detection member 720 is increased, after the product 800 is in the clamping space 200a, the detection member 720 detects the position of the product 800 in the clamping space 200a, and after the detection member 720 detects that the product is in the clamping space 200a, the driving source 300 is controlled to drive the first clamping member 201 to move, so that each clamping member 200 reduces the clamping space to clamp and fix the product 800; through setting up this detection assembly 700, improved the reliability of each holder 200 centre gripping, avoided because of the product is not in centre gripping space 200a, each holder 200 is with regard to centre gripping product to damage the product.

In a specific implementation, two of the detecting seats 710 are respectively installed on two sides of the base 100, and four of the detecting members 720 are respectively installed on two of the detecting seats.

Specifically, the detecting member 720 can be a suction cup, or a position sensor, which can be selected according to specific requirements.

In some embodiments, as shown in fig. 2, the detecting member 720 is a suction cup, and a vacuum measuring meter 721 is installed in the suction cup, the clamping device is moved above the product 800 by the robot, and gradually falls down, so that the suction cup is adsorbed on the product 800, and the air in the suction cup is exhausted to generate vacuum, when the value of the vacuum measuring meter 721 reaches a set value, it can be determined that the product 800 is completely in the clamping space 200a, and then the driving source is driven to operate, and the detecting member with this structure has the advantages of simple structure and low cost under the detecting function.

The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.

Claims

1. A clamping device, comprising:

a base;

2. The clamping device of claim 1, wherein there are two of each of the clamping members, namely a first clamping member and a second clamping member, the first clamping member and the second clamping member being sequentially disposed on the base along a first direction and both being reciprocally movable along the first direction, the transmission mechanism comprising:

3. The clamping device of claim 2, wherein: the base is provided with a central shaft, and the rotary connecting piece is rotatably sleeved on the central shaft.

4. A clamping device according to claim 3, characterised in that: a bearing is arranged between the rotating connecting piece and the central shaft, the inner ring of the bearing is sleeved on the central shaft, and the outer ring of the bearing is embedded in the rotating connecting piece.

5. The clamping device of claim 4, wherein: the base is further provided with a supporting platform, the supporting platform is sleeved on the central shaft and supports against the inner ring of the bearing.

6. The clamping device of claim 2, wherein: the driving source is an air cylinder, and a piston rod of the air cylinder pushes the first clamping piece to move towards or away from the second clamping piece.

7. The clamping device of claim 2, wherein: the clamping piece comprises a sliding seat in sliding fit with the base and a clamping claw arranged on the sliding seat, a sliding rail in sliding fit with the sliding seat is arranged on the base, the sliding rail is arranged on the base along a first direction, a sliding groove is arranged on the sliding seat, and the sliding groove is in sliding fit with the sliding rail;

wherein, the sliding seat is hinged on the connecting piece.

8. The clamping device of claim 7, wherein: the gripper jaw is L shape, including the grip block that is used for the centre gripping product and the limiting plate that is used for holding up the product, the grip block sets up on the sliding seat, just grip block and limiting plate integrated into one piece make.

9. The clamping device of claim 2, wherein: the clamping device further comprises a detection assembly, the detection assembly comprises a detection seat arranged on the base and a detection piece arranged on the detection seat, and after the product is located in the clamping space, the detection piece detects the position of the product in the clamping space.

10. The clamping device of claim 9, wherein: the detection piece is a sucker, a vacuum measuring meter is arranged in the sucker, the sucker is adsorbed on a product after the product is located in a clamping space, and the numerical value of the vacuum measuring meter reaches a set value.