Flexible clamp for plate articles

Abstract

The utility model discloses a flexible clamp for plate articles, which comprises a mounting plate, a plurality of connecting pieces are fixedly mounted on the mounting plate, a single-finger flexible claw is fixedly mounted at the lower end of each connecting piece, each single-finger flexible claw comprises a connecting part made of elastic materials, each connecting part comprises a driving cavity, and a driving part is arranged in the driving cavity. The connecting part is provided with a communication opening communicated with the driving cavity, the lower portion of the connecting part is connected with a finger part, the finger part is located on one side of the connecting part, the finger part of each single-finger flexible claw is fixedly provided with a finger sleeve, and the lower end of each finger sleeve is provided with a clamping plate part used for clamping the edge of a plate type object. The clamping plate parts on all the fingerstalls form a clamping area, and the flexible clamp can be used for conveniently taking out a PCB (Printed Circuit Board) from a mold, so that clamping of plate articles is met.

Description

TECHNICAL FIELD

[0001] The utility model relates to flexible clamping technical field especially relates to a flexible clamp of plate article. BACKGROUND

[0002] The flexible clamp is made of material with elastic deformation, such as silica gel, due to the characteristics of material, the flexible clamp can change the clamping force accurately by controlling the pressure of air pressure when clamping objects, which can avoid the damage to the clamped article caused by excessive clamping force. Compared with the conventional mechanical hard clamping clamp, it has its own advantages.

[0003] But some similar to PCB plate plate article, and when welding components on the PCB plate needs to keep the PCB plate fixed, so when producing, the PCB plate needs to be placed on the mold for processing, and the mold has an elastic top piece to top the PCB plate, so that it is fixed, and when the electrical components are welded, the PCB plate needs to be removed, and the elastic top piece needs to be overcome when removing. The top force. And because the thickness of the PCB plate is generally thin, the ordinary mechanical clamp cannot meet the clamping. The current conventional flexible clamp has a flexible chuck and a flexible finger, for example, the disclosure document CN219748045U discloses a flexible clamp jaw, and the disclosure document CN207027538U discloses a flexible mechanical hand composed of flexible fingers. Among the two kinds of flexible clamps, the size of the flexible clamp jaw cannot be too large, and the clamping force is difficult to take out the PCB plate from the top force of the elastic top piece, and the flexible finger is difficult to stretch into the mold because the finger is too large in size. Therefore, the above two kinds cannot meet the clamping of the plate article. UTILITY MODEL CONTENTS

[0004] The technical problem to be solved by the utility model is to provide a flexible clamp for plate article, which can conveniently take out the PCB plate from the mold, thereby meeting the clamping of the plate article.

[0005] To solve the above technical problems, the technical scheme of the utility model is: a flexible clamp for plate article, comprising a mounting plate, a plurality of connecting pieces are fixedly installed on the mounting plate, a single finger flexible jaw is fixedly installed at the lower end of each connecting piece, the single finger flexible jaw comprises a connecting part made of elastic material, the connecting part comprises a driving cavity, a communication port communicated with the driving cavity is arranged on the connecting part, a finger part is connected below the connecting part, and the finger part is located on one side of the connecting part. The finger part of each single finger flexible jaw is fixedly installed with a finger sleeve, a clamping plate part for clamping the edge of the plate article is arranged at the lower end of the finger sleeve, and the clamping plate parts on all finger sleeves constitute a clamping area.

[0006] As a preferred scheme, a clamping groove for clamping the edge of the plate article is arranged on the clamping plate part.

[0007] As a preferred solution, the lower part of the clamping plate part is provided with an arc-shaped chamfer.

[0008] As a preferred solution, the finger sleeve comprises a finger sleeve body, the finger sleeve body is provided with a sleeving cavity sleeving on the finger part of the single finger soft claw, the sleeving cavity is matched with the shape of the finger part, and the finger sleeve body is fixed on the finger part through a connecting screw penetrating through the finger part.

[0009] As a preferred solution, a tension strength reinforcing block for enhancing the tension is connected between the finger part and the cavity bottom wall, the finger sleeve body is provided with an avoiding gap avoiding the tension strength reinforcing block, the connecting screw is located below the avoiding gap, and the outer side upper end of the finger sleeve body extends to the cavity bottom wall.

[0010] As a preferred solution, each single finger soft claw is an outward supporting soft claw, and the clamping groove is located on the outer side plate surface of the clamping plate part.

[0011] As a preferred solution, each single finger soft claw is an inward bending inner clamping soft claw, and the clamping groove is located on the inner side plate surface of the clamping plate part.

[0012] As a preferred solution, the connecting piece is a connecting pipe, the connecting pipe penetrates through the mounting plate and is locked and fixed through an upper locking nut and a lower locking nut, and a central through hole of the connecting pipe is in communication with the driving cavity of the single finger soft claw.

[0013] As a preferred solution, the mounting plate is provided with a strip-shaped hole corresponding to the connecting pipe in one-to-one manner, the extending direction of the strip-shaped hole is the adjusting direction of the connecting pipe, and each connecting pipe penetrates through the strip-shaped hole in one-to-one manner and is locked and fixed through the upper locking nut and the lower locking nut.

[0014] The utility model discloses the effect is: due to the flexible clamp of the plate article, including the mounting plate, a plurality of connecting pieces are fixedly installed on the mounting plate, the lower end of each connecting piece is fixedly installed with single finger soft claw, the single finger soft claw includes the connecting portion made of elastic material, the connecting portion includes drive chamber, the connecting portion is provided with the communicating port with drive chamber intercommunication, the lower side of connecting portion is connected with the finger portion, and the finger portion is located at the one side of connecting portion, the finger portion of each single finger soft claw is fixedly installed with the finger sleeve, the lower end of the finger sleeve is provided with the clamping plate portion for clamping the edge of plate article, and the clamping plate portion on all finger sleeves constitutes the clamping area, therefore, when clamping the PCB in the mould, only needs the clamping plate portion of each single finger soft claw to aim at the notch on the mould, then drive gas path drives single finger soft claw and makes the finger portion flexural deformation, and the finger portion drives the finger sleeve to hold the PCB in turn with the clamping plate portion, because setting the finger sleeve and the clamping plate portion, the clamping force of single finger soft claw can be increased by the clamping plate portion, therefore can satisfy the PCB taking out from the mould, of course, because the single finger soft claw's own characteristic, improves the clamping force to need to change the air pressure, and even if the change of air pressure also can not make the clamping force too big, so the PCB can not be damaged. The flexible clamp can satisfy the clamping of PCB, and can also be applicable to the clamping of some other plate articles.

[0015] And because the clamping plate portion is provided with the clamping groove for clamping the edge of the plate article, the PCB can be better clamped into the clamping groove by the clamping groove, so that the clamping plate portion does not loosen when clamping.

[0016] And because the finger portion and the cavity bottom wall are connected with the tensioning force reinforcing block for enhancing the tensioning force, the avoiding notch for avoiding the tensioning force reinforcing block is arranged on the finger sleeve body, the connecting screw is located below the avoiding notch, and the outer side upper end of the finger sleeve body extends to the cavity bottom wall, so that the clamping force of the finger portion can be improved by the tensioning force reinforcing block, and meanwhile, the avoiding notch of the finger sleeve body can conveniently avoid the tensioning force reinforcing block and can also more wrap the finger portion, so that the finger sleeve body can be more firmly sleeved and fixed on the finger portion.

[0017] And because each single finger soft claw is an external supporting soft claw, and the clamping groove is located on the outer side surface of the clamping plate portion, so that when the PCB is clamped in the external supporting mode, the outer side surface of the single finger soft claw is flat, and therefore can better extend into the mould to clamp the PCB.

[0018] And because the mounting plate is provided with the strip-shaped hole corresponding to the connecting pipe, the extension direction of the strip-shaped hole is the adjusting direction of the connecting pipe, each connecting pipe penetrates through the strip-shaped hole and is locked and fixed by the upper locking nut and the lower locking nut, so that the position of the connecting pipe can be better adjusted through the strip-shaped hole, the position of the single finger soft claw is changed, and the clamping of the PCB of different sizes is satisfied. Attached Figure Description

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0020] Figure 1 This is a perspective view of Embodiment 1 of this utility model;

[0021] Figure 2 This is a front view of Embodiment 1 of this utility model;

[0022] Figure 3 This is a top view of Embodiment 1 of this utility model;

[0023] Figure 4 This is a front view of Embodiment 2 of this utility model;

[0024] Figure 5 This is a top view of Embodiment 3 of this utility model;

[0025] In the attached diagram: 1. Mounting plate; 2. Connector; 3. Single-finger claw; 31. Connecting part; 32. Finger part; 4. Finger sleeve; 41. Clamping plate part; 411. Slot; 5. Connecting screw; 6. Tension reinforcing block; 7. Upper locking nut; 8. Lower locking nut; 9. Strip hole. Detailed Implementation

[0026] The present invention will be further described in detail below through specific embodiments.

[0027] Example 1

[0028] like Figures 1-3 As shown, a flexible clamp for board-like items includes a mounting plate 1. Several connectors 2 are fixedly mounted on the mounting plate 1. A single-finger flexible claw 3 is fixedly mounted at the lower end of each connector 2. The single-finger flexible claw 3 includes a connecting part 31 made of elastic material. The connecting part 31 includes a driving chamber, which includes a side wall and a bottom wall. A communication port communicating with the driving chamber is provided on the connecting part 31. A finger part 32 is connected to the lower part of the connecting part 31. The finger part 32 is located on one side of the connecting part 31. A finger sleeve 4 is fixedly mounted on the finger part 32 of each single-finger flexible claw 3. A clamping plate part 41 for clamping the edge of the board-like item is provided at the lower end of the finger sleeve 4. The clamping plate parts 41 on all the finger sleeves 4 constitute the clamping area.

[0029] In this embodiment, four connectors 2 are fixedly installed on the mounting plate 1, and four single-finger claws 3 are installed accordingly. The clamping plate part 41 is provided with a slot 411 for clamping the edge of the plate-like item, which can further clamp the plate-like item. The lower part of the clamping plate part 41 is provided with an arc-shaped chamfer.

[0030] In this embodiment, the finger sleeve 4 is made of a rigid material; however, it can also be made of a relatively hard material depending on actual needs. The finger sleeve 4 includes a body with a fitting cavity that fits onto the finger portion 32 of the single-finger claw 3. The fitting cavity is adapted to the shape of the finger portion 32. The finger sleeve 4 body is fixed to the finger portion 32 by a connecting screw 5 that passes through it, or it can be fixed by a connector 2 of other structures. A tension reinforcing block 6 for enhancing the pulling force is connected between the finger portion 32 and the bottom wall of the driving chamber. The finger sleeve 4 body has a clearance notch to avoid the tension reinforcing block 6, and the connecting screw 5 is located below the clearance notch. The upper outer end of the finger sleeve 4 body extends to the bottom wall of the driving chamber. In this embodiment, the connector 2 is a connecting tube that passes through the mounting plate 1 and is locked in place by an upper locking nut 7 and a lower locking nut 8. The central through hole of the connecting tube communicates with the driving chamber.

[0031] In this embodiment, each single-finger soft claw 3 is an externally supporting soft claw, and the slot 411 is located on the outer side plate surface of the clamping plate portion 41.

[0032] Taking a PCB board as an example, during use, when the flexible clamp is clamping the PCB board in the mold, it is only necessary to align the slot 411 of the clamping plate part 41 of each single finger soft claw 3 with the mold, and then drive the air passage through the connecting pipe and the drive chamber to drive the single finger soft claw 3, causing the finger part 32 to bend and deform. In this way, the finger part 32 drives the finger sleeve 4, which in turn drives the slots 411 of each clamping plate part 41 to cooperate with each other to clamp the PCB board. Since the flexible clamp is equipped with the finger sleeve 4 and the clamping plate part 41 and is made of hard material, the clamping plate part 41 can increase the clamping force of the single finger soft claw 3, thus satisfying the requirement of taking the PCB board out of the mold.

[0033] Example 2

[0034] like Figure 4 As shown, in this embodiment, each single-finger soft claw 3 is configured as an inwardly curved inner clamping soft claw, and the slot 411 is located on the inner side plate surface of the clamping plate portion 41.

[0035] Other technical features of this embodiment are basically the same as those of Embodiment 1, and will not be repeated here.

[0036] Example 3

[0037] like Figure 5As shown, in the embodiment, the mounting plate 1 is provided with a strip-shaped hole 9 corresponding to each connecting pipe, the extension direction of the strip-shaped hole 9 is the adjusting direction of the connecting pipe, and each connecting pipe is correspondingly penetrated into the strip-shaped hole 9 and locked and fixed by the upper locking nut 7 and the lower locking nut 8. By adjusting the position of the connecting pipe in the strip-shaped hole 9, the position of each single finger claw 3 is changed, different requirements of clamping plate-shaped articles of different sizes are met, and the use range is wider.

[0038] The other technical features of the embodiment are basically the same as those of embodiment 1, and will not be repeated.

[0039] The air path system, the executing device such as the servo motor, the gear transmission mechanism, and the screw nut mechanism mentioned in the above embodiments 1-3 are all the conventional technologies, and the specific structure and principle of the air cylinder, the motor and other transmission mechanisms and other designs are disclosed in detail in the Mechanical Design Manual (the fifth edition) printed in Beijing in April, 2008 for the twenty-eighth time, which belongs to the prior art, and the structure is clear and explicit. The vacuum element, the gas circuit and the program control are disclosed in detail in the modern practical pneumatic technology (the third edition) SMC training teaching material published by the Mechanical Industry Press on August 1, 2008, which shows that the air path structure in the embodiment is also the prior art and is clear and explicit. The control of the motor and the travel switch are introduced in detail in the Motor Drive and Speed Regulation book published by the Chemical Industry Press on July 1, 2015, so the circuit and the air path connection are clear.

[0040] The above-described embodiments are only the description of the preferred embodiments of the present application, and are not used to limit the scope of the present application. On the basis of not departing from the design spirit of the present application, various deformations and modifications of the technical solutions of the present application are all within the protection scope determined by the claims of the present application.

Claims

1. A flexible gripper for sheet-like articles, comprising a mounting plate, characterized in that: The installation plate is fixedly installed with a plurality of connecting pieces, the lower end of each connecting piece is fixedly installed with a single-finger soft claw, the single-finger soft claw comprises a connecting part made of elastic material, the connecting part comprises a driving cavity, the connecting part is provided with a communication port communicated with the driving cavity, the lower portion of the connecting part is connected with a finger part located at one side of the connecting part, the finger part of each single-finger soft claw is fixedly installed with a finger sleeve, the lower end of the finger sleeve is provided with a clamping plate part for clamping the edge of a plate-like article, and the clamping plate parts on all the finger sleeves constitute a clamping area.

2. A flexible gripper for a sheet-like article as claimed in claim 1, characterized in that: The clamping plate part is provided with a clamping groove for clamping the edge of the plate-like article.

3. A flexible gripper for a sheet-like article as claimed in claim 2, characterized in that: The lower portion of the clamping plate part is provided with an arc-shaped chamfer.

4. A flexible gripper for a sheet-like article as claimed in claim 3, characterized in that: The finger sleeve comprises a finger sleeve body, the finger sleeve body is provided with a sleeving cavity sleeved on the finger part of the single-finger soft claw, the sleeving cavity is matched with the shape of the finger part, and the finger sleeve body is fixed on the finger part through a connecting screw penetrating through the finger part.

5. A flexible gripper for a sheet-like article as claimed in claim 4, characterized in that: The finger part and the cavity bottom wall of the driving cavity are connected with a pulling force reinforcing block for enhancing the pulling force, the finger sleeve body is provided with an avoiding notch for avoiding the pulling force reinforcing block, the connecting screw is located below the avoiding notch, and the outer side upper end of the finger sleeve body extends to the cavity bottom wall.

6. A flexible gripper for a sheet-like article as claimed in claim 5, characterized in that: Each single-finger soft claw is an outward supporting soft claw, and the clamping groove is located on the outer side plate surface of the clamping plate part.

7. A flexible gripper for a sheet-like article as defined in claim 5, characterized in that: Each single-finger soft claw is an inward clamping soft claw, and the clamping groove is located on the inner side plate surface of the clamping plate part.

8. A flexible gripper for a sheet-like article as defined in claim 1, characterized in that: The connecting piece is a connecting pipe, the connecting pipe penetrates through the installation plate and is locked and fixed through upper locking nuts and lower locking nuts, and the central through hole of the connecting pipe is communicated with the driving cavity of the single-finger soft claw.

9. A flexible gripper for a sheet-like article as claimed in claim 8, characterized in that: The installation plate is provided with a strip-shaped hole corresponding to the connecting pipe, the extension direction of the strip-shaped hole is the adjusting direction of the connecting pipe, each connecting pipe penetrates through the strip-shaped hole and is locked and fixed through upper locking nuts and lower locking nuts.

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