A flexible finger component

Abstract

This utility model discloses a flexible finger assembly, including a flexible finger, which comprises a finger base plate and a finger surface. The finger surface is connected to one side of the finger base plate. The elastic modulus of the finger base plate is greater than that of the finger surface. The finger surface includes a fingertip segment, a knuckle segment, and a base segment. The knuckle segment includes at least one crest and at least one trough, which are connected in sequence to form a wave-shaped structure. The knuckle segment and the finger base plate together form a driving chamber. A connecting chamber is provided in the base segment, which communicates with the driving chamber. A vent is provided on the finger base plate or the base segment, which communicates with the connecting chamber. A corrosion-resistant flexible layer is also fixed on the finger base plate. The corrosion-resistant flexible layer covers at least the grasping contact area of ​​the front section of the finger base plate. This flexible finger utilizes the corrosion-resistant flexible layer to better protect the finger base plate and improve the service life of the flexible finger.

Description

Technical Field

[0001] This utility model relates to a flexible finger assembly, belonging to the field of clamping technology. Background Technology

[0002] Flexible fingers are flexible clamps made of silicone material and are widely used in various fields. Because they are made of flexible silicone material and use air pressure to control the clamping force, the clamping force is very gentle and does not easily damage the clamped object.

[0003] For example, the utility model application CN207027539U discloses a novel flexible finger. This flexible finger includes a finger base plate and a finger surface. The finger surface is connected to one side of the finger base plate. The elastic modulus of the finger base plate is greater than that of the finger surface. The finger surface includes a fingertip segment, a knuckle segment, and a base segment. The knuckle segment includes at least one crest and at least one trough, which are sequentially connected to form a wave-like structure. The knuckle segment and the finger base plate together form a driving chamber. A communicating chamber connected to the driving chamber is provided in the base segment. A vent is provided on the finger base plate or the base segment that communicates with the communicating chamber. However, because the finger base plate needs to contact the object when using the flexible finger to grip it, and due to the different environments of the objects to be gripped, some object surfaces may have residual corrosive organic solvents or oils. Prolonged contact of these organic solvents and oils with the finger base plate can corrode it, thus reducing the lifespan of the finger. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a flexible finger assembly, which utilizes an anti-corrosion flexible layer to better protect the base plate of the finger and improve the service life of the flexible finger.

[0005] To solve the above-mentioned technical problems, the technical solution of this utility model is: a flexible finger assembly, including a flexible finger, the flexible finger including a finger base plate and a finger surface, the finger surface being connected to one side of the finger base plate, the elastic modulus of the finger base plate being greater than the elastic modulus of the finger surface, the finger surface including a fingertip segment, a knuckle segment, and a base segment, the knuckle segment including at least one crest and at least one trough, the crest and trough being connected in sequence to form a wave-shaped structure, the knuckle segment and the finger base plate together forming a driving chamber, the base segment having a communicating chamber communicating with the driving chamber, the finger base plate or the base segment having a vent communicating with the communicating chamber, and the finger base plate also having a corrosion-resistant flexible layer fixed thereon, the corrosion-resistant flexible layer at least covering the grasping contact area of ​​the front section of the finger base plate.

[0006] As a preferred embodiment, the anti-corrosion flexible layer includes an anti-corrosion base plate portion, which is fixed to the bottom of the finger base plate. Side anti-corrosion portions are also provided on both sides of the anti-corrosion base plate portion, which cover the sides of the finger base plate.

[0007] As a preferred embodiment, the anti-corrosion base plate is detachably fixed to the finger base plate by bolts or by adhesive, and the side anti-corrosion part is adhesively fixed to the side of the finger base plate.

[0008] As a preferred embodiment, the corrosion-resistant flexible layer further includes a fingertip wrapping portion that wraps around the fingertip segment of the flexible finger, the fingertip wrapping portion wrapping around the fingertip segment and being fixed to the fingertip segment by bolts or adhesive.

[0009] As a preferred embodiment, the fingertip wrapping portion wraps around the fingertip segment and at least partially wraps around the first phalanx segment closest to the fingertip segment.

[0010] As a preferred embodiment, the corrosion-resistant flexible layer is a rubber-based corrosion-resistant flexible layer.

[0011] As a preferred embodiment, the bottom of the corrosion-resistant flexible layer is patterned.

[0012] After adopting the above technical solution, the effect of this utility model is as follows: Since the finger base plate is also fixed with an anti-corrosion flexible layer, the anti-corrosion flexible layer covers at least the grasping contact area of ​​the front part of the finger base plate. Therefore, the anti-corrosion flexible layer can be made of rubber material. Rubber material itself has a certain degree of flexibility, which is convenient to deform with the finger base plate. At the same time, rubber itself has a better anti-corrosion effect than silicone material, thus extending the service life of the entire flexible finger.

[0013] Furthermore, since the anti-corrosion flexible layer includes an anti-corrosion base plate fixed to the bottom of the finger base plate, and side anti-corrosion portions are provided on both sides of the anti-corrosion base plate covering the sides of the finger base plate, the anti-corrosion flexible layer can better protect the finger base plate, protecting not only the bottom but also the sides. This prevents corrosive solvents or oils from contacting the sides of the finger base plate, further extending its service life.

[0014] Furthermore, since the anti-corrosion flexible layer also includes a fingertip wrapping part that wraps around the fingertip segment of the flexible finger, and the fingertip wrapping part wraps around the fingertip segment and is fixed to the fingertip segment by bolts or adhesive, the fingertip is protected by wrapping the fingertip, thereby avoiding contact between the fingertip segment and solvents or oils, resulting in better protection and further extending the service life.

[0015] Furthermore, since the fingertip wrapping portion wraps around the fingertip segment and at least partially wraps around the first phalanx segment near the fingertip segment, the wrapping portion can better wrap around the fingertip segment.

[0016] Furthermore, the bottom of the anti-corrosion flexible layer is patterned, which can improve the friction of clamping objects. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0018] Figure 1 This is a perspective view of Embodiment 1 of this utility model;

[0019] Figure 2 This is a top view of Embodiment 1 of this utility model;

[0020] Figure 3 yes Figure 2 Structural cross-sectional view along AA;

[0021] Figure 4 This is a perspective view of Embodiment 2 of this utility model;

[0022] Figure 5 This is a perspective view of Embodiment 2 of this utility model from another angle;

[0023] In the attached diagram: 1. Finger base plate; 11. Anti-corrosion base plate; 12. Side anti-corrosion part; 13. Finger tip wrapping part; 14. Pattern; 2. Finger tip segment; 3. Finger joint segment; 31. Crest; 32. Trough; 4. Finger root segment; 5. Drive chamber; 6. Connecting chamber; 7. Vent; 8. Bolt. Detailed Implementation

[0024] The present invention will be further described in detail below through specific embodiments.

[0025] Example 1

[0026] like Figure 1-3As shown, a flexible finger assembly includes a flexible finger, which comprises a finger base plate 1 and a finger surface. The finger surface is connected to one side of the finger base plate 1. The elastic modulus of the finger base plate 1 is greater than that of the finger surface. The finger surface includes a fingertip segment 2, a knuckle segment 3, and a base segment 4. The knuckle segment 3 includes at least one crest 31 and at least one trough 32. The crest 31 and trough 32 are connected in sequence to form a wave-shaped structure. The knuckle segment 3 and the finger base plate 1 together form a driving chamber 5. A communicating chamber 6 is provided in the base segment 4, which communicates with the driving chamber 5. A vent 7 is provided on the base segment 4, which communicates with the communicating chamber 6. A corrosion-resistant flexible layer is also fixed on the finger base plate 1. The corrosion-resistant flexible layer at least covers the grasping contact area of ​​the front section of the finger base plate 1.

[0027] In this embodiment 1, the anti-corrosion flexible layer is made of rubber. A pattern 14 is provided on the bottom of the anti-corrosion flexible layer. The anti-corrosion flexible layer includes an anti-corrosion base plate 11, which is fixed to the bottom of the finger base plate 1. Side anti-corrosion portions 12 are also provided on both sides of the anti-corrosion base plate 11, covering the sides of the finger base plate 1. The anti-corrosion base plate 11 is bonded to the finger base plate 1, and the side anti-corrosion portions 12 are bonded to the sides of the finger base plate 1.

[0028] In this embodiment 1, the corrosion-resistant flexible layer further includes a fingertip wrapping portion 13 that wraps around the fingertip segment 2 of the flexible finger. The fingertip wrapping portion 13 wraps around the fingertip segment 2 and is fixed to the fingertip segment 2 by adhesive bonding. The fingertip wrapping portion 13 wraps around the fingertip segment 2 and at least partially wraps around the first phalanx segment 3 closest to the fingertip segment 2.

[0029] The corrosion-resistant flexible layer of this application is made of rubber. Rubber itself has a certain degree of flexibility, allowing it to deform with the finger base plate 1. At the same time, rubber offers better corrosion resistance than silicone, thus extending the lifespan of the entire flexible finger. Of course, other materials can be selected according to requirements. The corrosion-resistant flexible layer includes a corrosion-resistant base plate 11 and side corrosion-resistant portions 12 on both sides. The side corrosion-resistant portions 12 cover the sides of the finger base plate 1, thus providing better protection for the finger base plate 1, protecting not only the bottom but also the sides. This prevents corrosive solvents or oils from contacting the sides of the finger base plate 1, extending its service life.

[0030] In this embodiment 1, the anti-corrosion flexible layer also includes a fingertip wrapping portion 13 that wraps the fingertip segment 2 of the flexible finger. The fingertip wrapping portion 13 wraps the fingertip segment 2 and at least partially wraps the first knuckle segment 3 near the fingertip segment 2, and is fixed to the fingertip segment 2 by bonding. In this way, the fingertip and part of the knuckle segment 3 are protected by the fingertip wrapping portion 13, and the protection effect is better. The bottom of the anti-corrosion flexible layer is provided with a pattern 14 to improve the friction of clamping objects.

[0031] Example 2

[0032] like Figure 4-5 As shown, a flexible finger assembly includes a flexible finger, which comprises a finger base plate 1 and a finger surface. The finger surface is connected to one side of the finger base plate 1. The elastic modulus of the finger base plate 1 is greater than that of the finger surface. The finger surface includes a fingertip segment 2, a knuckle segment 3, and a base segment 4. The knuckle segment 3 includes at least one crest 31 and at least one trough 32. The crest 31 and trough 32 are connected in sequence to form a wave-shaped structure. The knuckle segment 3 and the finger base plate 1 together form a driving chamber 5. A connecting chamber 6 communicating with the driving chamber 5 is provided in the base segment 4. A vent 7 communicating with the connecting chamber 6 is provided on the finger base plate 1. A corrosion-resistant flexible layer is also fixed on the finger base plate 1. The corrosion-resistant flexible layer at least covers the grasping contact area of ​​the front section of the finger base plate 1.

[0033] The anti-corrosion base plate 11 is fixed to the finger base plate 1 by bolts 8, and the side anti-corrosion part 12 is bonded and fixed to the side of the finger base plate 1.

[0034] The corrosion-resistant flexible layer also includes a fingertip wrapping portion 13 that wraps around the fingertip segment 2 of the flexible finger. The fingertip wrapping portion 13 wraps around the fingertip segment 2 and is fixed to the fingertip segment 2 by bolts 8. The fingertip wrapping portion 13 wraps around the fingertip segment 2 and at least partially wraps around the first knuckle segment 3 closest to the fingertip segment 2.

[0035] The other technical features of this embodiment 2 are basically the same as those of embodiment 1, and will not be repeated here.

[0036] The above-described embodiments are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Any modifications and alterations to the technical solution of the present utility model without departing from its design spirit shall fall within the protection scope defined by the claims of the present utility model.

Claims

1. A flexible finger assembly, comprising a flexible finger, the flexible finger including a finger base plate and a finger surface, the finger surface being connected to a side surface of the finger base plate, the elastic modulus of the finger base plate being greater than the elastic modulus of the finger surface, the finger surface including a fingertip segment, a knuckle segment, and a base segment, the knuckle segment including at least one crest and at least one trough, the crest and trough being sequentially connected to form a wave-shaped structure, the knuckle segment and the finger base plate together forming a driving chamber, the base segment having a communicating chamber communicating with the driving chamber, and the finger base plate or the base segment having a vent communicating with the communicating chamber, characterized in that: The finger base plate is also fixed with a corrosion-resistant flexible layer, which at least covers the gripping contact area at the front of the finger base plate.

2. The flexible finger assembly as described in claim 1, characterized in that: The anti-corrosion flexible layer includes an anti-corrosion base plate, which is fixed to the bottom of the finger base plate. Side anti-corrosion portions are also provided on both sides of the anti-corrosion base plate, which cover the sides of the finger base plate.

3. The flexible finger assembly as described in claim 2, characterized in that: The anti-corrosion base plate is detachably fixed to the finger base plate by bolts or by adhesive, and the side anti-corrosion part is bonded to the side of the finger base plate.

4. The flexible finger assembly as described in claim 3, characterized in that: The corrosion-resistant flexible layer also includes a fingertip wrapping portion that wraps around the fingertip segment of the flexible finger. The fingertip wrapping portion wraps around the fingertip segment and is fixed to the fingertip segment by bolts or adhesive.

5. The flexible finger assembly as described in claim 4, characterized in that: The fingertip wrapping portion wraps around the fingertip segment and at least partially wraps around the first phalanx segment closest to the fingertip segment.

6. The flexible finger assembly according to any one of claims 1 to 5, characterized in that: The corrosion-resistant flexible layer is made of rubber.

7. The flexible finger assembly as described in claim 6, characterized in that: The bottom of the corrosion-resistant flexible layer is patterned.

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