Profiling flexible clamp

Abstract

The utility model discloses a profiling flexible clamp which comprises a connecting part made of elastic materials, the connecting part comprises a driving cavity, the upper portion of the connecting part is provided with a connecting port communicated with the driving cavity, the lower portion of the connecting part is connected with at least two flexible finger parts, and the driving cavity comprises a cavity bottom wall and a cavity side wall. Finger roots of the flexible finger parts are connected with the cavity side walls, each flexible finger part is fixedly provided with a reinforced profiling fingerstall through a connecting piece penetrating through the flexible finger part, the flexible finger parts are sleeved with the reinforced profiling fingerstalls, fingernail pieces extending towards the center are arranged at the lower ends of the reinforced profiling fingerstalls, profiling clamping parts are arranged on the center sides of the fingernail pieces, and the flexible finger parts are clamped in the profiling clamping parts. The reinforced profiling fingerstall in the profiling flexible clamp is firmly fixed, and the lens ring can be conveniently clamped.

Description

TECHNICAL FIELD

[0001] The utility model relates to flexible clamp technical field especially relates to a profiled flexible clamp. BACKGROUND

[0002] In the field of industrial automation, the end of the mechanical arm grasps the action mainly by rigid mechanical gripper or vacuum chuck. But the rigid mechanical gripper, because the force is difficult to control, it is difficult to realize the non-destructive grasping of soft and fragile objects. The vacuum chuck is difficult to adapt to the rough surface, the opening of the special-shaped object in the handling process. This leads to the limitation of the application scene of both. The flexible mechanical finger adopts elastic material, which can realize the grasping of soft and fragile objects without damage to the object itself. And the public number CN219748045U of the public document records a kind of flexible gripper for strengthening negative pressure grasping of flexible gripper, and the function finger of the flexible gripper is directly fixed on the outer side wall of flexible finger, the whole is not beautiful, and at least two screws are needed to fix, single screw is not firm enough, prone to deflection. In addition, the profiled structure of the columnar object is shown in the public document, but it cannot meet the requirements of some other special structure objects, for example, for some columnar lens rings, the lens ring is vertically placed, and an outer edge is arranged at the upper end of the lens ring. Since the lens is fixed on the upper end of the lens ring, it is necessary to avoid collision with the upper end of the lens ring, so that the flexible gripper is put forward with new requirements. CONTENT OF THE UTILITY MODEL

[0003] The technical problem to be solved by the utility model is to provide a profiled flexible clamp, the reinforced profiled finger sleeve in the profiled flexible clamp is fixed firmly, and the lens ring can be conveniently clamped.

[0004] To solve the above technical problems, the technical scheme of the utility model is as follows: a profiled flexible clamp, comprising a connecting part made of elastic material, the connecting part includes a driving cavity, a connecting port communicating with the driving cavity is arranged on the upper part of the connecting part, at least two flexible finger parts are connected below the connecting part, the driving cavity includes a cavity bottom wall and a cavity side wall, the toe of the flexible finger part is connected with the cavity side wall, each flexible finger part is fixedly installed with a reinforced profiled finger sleeve through a connecting piece penetrating the flexible finger part, the reinforced profiled finger sleeve is sleeved on the flexible finger part, the lower end of the reinforced profiled finger sleeve is provided with a nail piece extending to the center, and the center side of the nail piece is provided with a profiled clamping part.

[0005] As a preferred scheme, the reinforced profiled finger sleeve includes a finger sleeve body, an embedded cavity is arranged on the finger sleeve body to facilitate the insertion of the flexible finger part, the shape of the embedded cavity is matched with the shape of the flexible finger part, the connecting piece is a connecting screw, and the connecting screw penetrates the flexible finger part transversely and is threadedly connected on the finger sleeve body.

[0006] As a preferred scheme, an observation window is arranged on the outer side wall of the sleeve body, and a recess is arranged on the inner side wall of the sleeve body.

[0007] As a preferred scheme, the lower opening of the observation window is flush with the cavity bottom of the embedding chamber.

[0008] As a preferred scheme, a recess window is further arranged on the inner side wall of the sleeve body to facilitate deformation of the flexible finger part, and the lower opening of the recess window is higher than the cavity bottom of the embedding chamber.

[0009] As a preferred scheme, the profiling clamping part is an arc-shaped groove.

[0010] As a preferred scheme, the arc-shaped groove on the profiling clamping part is a circular arc groove, and the arc grooves on the profiling clamping part are concentrically arranged in a free state.

[0011] As a preferred scheme, a tension reinforcing block is connected between the side wall of each finger part and the cavity bottom wall to enhance the tension, and the sleeve body part wraps the tension reinforcing block.

[0012] As a preferred scheme, the connecting screw transversely penetrates the tension reinforcing block.

[0013] As a preferred scheme, the hardness of the enhanced profiling sleeve is greater than the hardness of the flexible finger part.

[0014] After the above technical scheme is adopted, the effect of the present application is that: due to the profiling flexible clamp, the connecting part is made of elastic material, the connecting part includes a driving chamber, the upper part of the connecting part is provided with a connecting opening communicating with the driving chamber, the lower part of the connecting part is connected with at least two flexible finger parts, the driving chamber includes a cavity bottom wall and a cavity side wall, the heel of the flexible finger part is connected with the cavity side wall, each flexible finger part is fixedly installed with an enhanced profiling sleeve through a connecting piece penetrating the flexible finger part, the enhanced profiling sleeve is sleeved on the flexible finger part, the lower end of the enhanced profiling sleeve is provided with a nail piece extending to the center, the center side of the nail piece is provided with a profiling clamping part, therefore, the profiling flexible clamp uses the connecting piece to fix the enhanced profiling sleeve on the flexible finger part, the fixation is very firm, and since the sleeve is sleeved on the flexible finger part, the deflection does not occur, the accuracy of clamping is ensured, at the same time, the nail piece extends inward, the article can be conveniently grabbed, and the profiling clamping part is arranged on the nail piece, can be consistent with the clamped article, at the same time, the nail piece extends inward, therefore, there is a certain avoiding space between the nail piece and the enhanced profiling sleeve, which can accommodate and avoid the convex edge. In this way, the profiling flexible clamp can meet the clamping of the lens ring or similar articles.

[0015] And since the enhanced profiled finger sleeve comprises a finger sleeve body, the finger sleeve body is provided with an embedded chamber for facilitating insertion of the flexible finger part, the embedded chamber is shaped to match the shape of the flexible finger part, the connecting member is a connecting screw, and the connecting screw transversely penetrates the flexible finger part and is threadedly connected to the finger sleeve body, so that the connecting screw is directly connected to the finger sleeve body and penetrates the flexible finger part, and the fixation is very firm.

[0016] And since the outer side wall of the finger sleeve body is provided with an observation window, and the inner side wall of the finger sleeve body is provided with an avoiding notch, the observation window can observe the sleeving condition between the finger sleeve body and the flexible finger part, and ensure that the flexible finger part is completely inserted into the embedded chamber of the finger sleeve body, and the avoiding notch can avoid the convex edge of a larger size.

[0017] And since the inner side wall of the finger sleeve body is further provided with an avoiding window for facilitating deformation of the flexible finger part, the lower edge of the avoiding window is higher than the cavity bottom of the embedded chamber, and since the avoiding window is provided, the avoiding window can further avoid the upper end of the lens ring, so that the avoiding space is larger, and can meet the clamping of the lens ring of a larger size, and the lower edge of the avoiding window is higher than the cavity bottom of the embedded chamber, so that the side wall between the lower edge of the avoiding window and the cavity bottom of the embedded chamber can form a limiting side wall, the limiting side wall can limit the end of the flexible finger part, so as to avoid dislocation between the flexible finger part and the finger sleeve body, and ensure sufficient clamping force.

[0018] And since the side wall of each finger part is connected with the cavity bottom wall and is connected with a pulling force reinforcing block for enhancing the pulling force, the finger sleeve body partially wraps the pulling force reinforcing block, so that the sleeving and fixing area between the finger sleeve body and the flexible finger part is larger and more firm, and the connecting screw transversely penetrates the pulling force reinforcing block, so that the connecting screw can better firmly fix the flexible finger part and the finger sleeve body. BRIEF DESCRIPTION OF DRAWINGS

[0019] The utility model will be further explained in connection with the drawings and embodiments.

[0020] Figure 1 is the perspective view of the utility model embodiment;

[0021] Figure 2 is the front view of the utility model embodiment;

[0022] Figure 3 is Figure 2 the partial cross-sectional view along A-A;

[0023] Figure 4 is the perspective view of the enhanced profiled finger sleeve of the utility model embodiment;

[0024] Figure 5is another angle of the enhanced profiling finger sleeve of the embodiment of the utility model;

[0025] In the drawing: 1. connecting part; 2. flexible finger part; 3. connecting screw; 4. enhanced profiling finger sleeve; 41. finger sleeve body; 42. observation window; 43. avoiding recess; 44. avoiding window; 45. embedding chamber; 5. nail piece; 6. profiling clamping part; 7. tension reinforcing block. DETAILED DESCRIPTION

[0026] The utility model will be described in further detail below through specific embodiments.

[0027] As Figures 1-5 shown, a profiling flexible clamp includes connecting part 1 made of elastic material, connecting part 1 includes driving chamber, connecting part 1 upper portion is provided with the connecting mouth that communicates with driving chamber, the connecting mouth is communicated with the air nozzle, the lower of connecting part 1 is connected with at least two flexible finger parts 2, driving chamber includes cavity bottom wall and cavity side wall, driving chamber is not drawn in the drawing, the heel of flexible finger part 2 is connected with the cavity side wall, each flexible finger part 2 is fixedly installed with enhanced profiling finger sleeve 4 through the connecting piece that penetrates flexible finger part 2, and the hardness of enhanced profiling finger sleeve 4 is greater than the hardness of flexible finger part 2. The enhanced profiling finger sleeve 4 can directly select hard finger sleeve or select software finger sleeve. Enhanced profiling finger sleeve 4 is sleeved on flexible finger part 2, and the lower end of enhanced profiling finger sleeve 4 is provided with multiple nail pieces 5 extending to the center, each nail piece 5 corresponds to flexible finger part 2 one by one, and the center side of nail piece 5 is provided with profiling clamping part 6.

[0028] In the embodiment, flexible finger part 2 is four, and profiling clamping part 6 is arc-shaped groove. Specifically, the arc-shaped groove on profiling clamping part 6 is circular arc groove, and in the free state, the arc grooves on each profiling clamping part 6 are concentrically arranged. And, in the embodiment, the structure of each profiling clamping part 6 is identical.

[0029] In the embodiment, enhanced profiling finger sleeve 4 includes finger sleeve body 41, the finger sleeve body 41 is provided with embedding chamber 45 for facilitating the insertion of flexible finger part 2, the shape of embedding chamber 45 is matched with the shape of flexible finger part 2, the connecting piece is connecting screw 3, and connecting screw 3 penetrates transversely through flexible finger part 2 and is threadedly connected on finger sleeve body 41. The outer side wall of finger sleeve body 41 is provided with observation window 42, and the inner side wall of finger sleeve body 41 is provided with avoiding recess 43. The lower opening of observation window 42 is flush with the cavity bottom of embedding chamber 45. The inner side wall of finger sleeve body 41 is further provided with avoiding window 44 for facilitating the deformation of flexible finger part 2, and the lower opening of avoiding window 44 is higher than the cavity bottom of embedding chamber 45.

[0030] The avoiding recess 43 and the avoiding window 44 can avoid the convex edge with larger size, the lower edge of the avoiding window 44 is higher than the cavity bottom of the embedding chamber 45, so that the sidewall between the lower edge of the avoiding window 44 and the cavity bottom of the embedding chamber 45 can form a limiting sidewall, which can limit the end of the flexible finger 2, thereby avoiding the misalignment between the flexible finger 2 and the sleeve body 41.

[0031] The sidewall of each flexible finger 2 and the cavity bottom wall are connected with a tension reinforcing block 7 for enhancing the tension, the sleeve body 41 partially wraps the tension reinforcing block 7, and the connecting screw 3 transversely penetrates the tension reinforcing block 7, so that the sleeving and fixing area between the sleeve body 41 and the flexible finger 2 is larger and more firm, and the connecting screw 3 can better firmly fix the flexible finger 2 and the sleeve body 41.

[0032] In use, the profiled flexible clamp uses the connecting screw 3 to fix the enhanced profiled sleeve 4 on the flexible finger 2, the fixing is very firm, since the enhanced profiled sleeve 4 is sleeved on the flexible finger 2, the deflection does not occur, the accuracy of the clamping action is ensured, meanwhile, each nail piece 5 extends inward, the articles can be more conveniently grabbed, and each profiled clamping part 6 is concentrically arranged on the nail piece 5, can cooperate with the clamped articles, meanwhile, the nail piece 5 extends inward, so that there is a certain avoiding space between the nail piece 5 and the enhanced profiled sleeve 4, which can accommodate and avoid the convex edge, so that the profiled flexible clamp is especially suitable for clamping the lens ring or similar articles and the like. Of course, other suitable articles can also be clamped according to actual needs.

[0033] The air circuit system, the executing device such as the servo motor, the gear transmission mechanism and the screw nut mechanism mentioned in the embodiment are all the conventional technologies at present, 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 Fifth Edition printed in Beijing for the twenty-eighth time in April 2008, which belongs to the prior art, 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 third edition SMC training teaching material published by the Mechanical Industry Press on August 1, 2008, which shows that the air circuit structure in the embodiment is also the prior art, which is clear and explicit, and the control of the motor and the travel switch are also 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 circuit connection are clear.

[0034] The above-described embodiments are only the description of the preferred embodiments of the utility model, not as the limitation of the scope of the utility model, on the basis of not departing from the design spirit of the utility model, various deformations and modifications of the technical scheme of the utility model are made, which should fall into the protection scope determined by the claims of the utility model.

Claims

1. A flexible profiling fixture comprising a connecting part made of elastic material, the connecting part comprising a driving cavity, the upper part of the connecting part being provided with a connecting port communicating with the driving cavity, the lower part of the connecting part being connected with at least two flexible fingers, the driving cavity comprising a cavity bottom wall and a cavity side wall, the heel of the flexible fingers being connected with the cavity side wall, characterized in that: Each flexible finger is fixedly installed with a reinforced profiling finger sleeve through a connecting piece penetrating the flexible finger, the reinforced profiling finger sleeve is sleeved on the flexible finger, the lower end of each reinforced profiling finger sleeve is provided with a nail piece extending to the center, and the center side of the nail piece is provided with a profiling clamping part.

2. A flexible profiling fixture according to claim 1, wherein: The reinforced profiling finger sleeve comprises a finger sleeve body, an embedded chamber for facilitating insertion of the flexible finger is arranged on the finger sleeve body, the shape of the embedded chamber is matched with the shape of the flexible finger, the connecting piece is a connecting screw, and the connecting screw penetrates the flexible finger transversely and is threadedly connected on the finger sleeve body.

3. A flexible profiling fixture according to claim 2, wherein: An observation window is arranged on the outer side wall of the finger sleeve body, and an avoiding notch is arranged on the inner side wall of the finger sleeve body.

4. A flexible profiling fixture according to claim 3, wherein: The lower opening of the observation window is flush with the cavity bottom of the embedded chamber.

5. A flexible profiling fixture according to claim 4, wherein: The inner side wall of the finger sleeve body is further provided with an avoiding window for facilitating deformation of the flexible finger, and the lower opening of the avoiding window is higher than the cavity bottom of the embedded chamber.

6. A flexible profiling fixture as claimed in claim 1, wherein: The profiling clamping part is an arc-shaped groove.

7. A flexible profiling fixture according to claim 6, wherein: The arc-shaped groove on the profiling clamping part is a circular arc groove, and the arc grooves on the profiling clamping parts are concentrically arranged in a free state.

8. A flexible profiling fixture as claimed in claim 2, wherein: A tension strengthening block for enhancing the tension is connected between the side wall of each flexible finger and the cavity bottom wall of the driving chamber, and the finger sleeve body partially wraps the tension strengthening block.

9. A flexible profiling fixture according to claim 8, wherein: The connecting screw penetrates the tension strengthening block transversely.

10. A flexible profiling fixture as claimed in claim 1, wherein: The hardness of the reinforced profiling finger sleeve is greater than that of the flexible finger.

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