Combined flexible clamp

Abstract

The utility model discloses a combined flexible clamp which comprises an installation seat, a peripheral flexible clamp assembly is fixedly installed on the installation seat, the peripheral flexible clamp assembly comprises at least two peripheral flexible fingers fixed on the installation seat, each peripheral flexible finger is provided with an outer clamping air path connector communicated with an outer clamping driving air path, and the outer clamping air path connector is provided with a clamping driving air path. The outer clamping driving gas circuit drives the flexible fingers to bend and clamp towards the inner side; a central inner supporting flexible chuck is further installed on the installation base, the central inner supporting flexible chuck is located in a clamping area of the peripheral flexible clamp assembly, the central inner supporting flexible chuck is provided with an inner supporting gas path connector communicated with an inner supporting clamping driving gas path, and the inner supporting clamping driving gas path drives the central inner supporting flexible chuck to open and clamp from inside to outside. According to the flexible clamp, the peripheral flexible fingers and the central inner supporting flexible chuck are combined, so that the flexible clamp can adapt to clamping of some special objects.

Description

Technical Field

[0001] The utility model relates to the technical field of flexible clamps, in particular to a combined flexible clamp. Background Art

[0002] Since the flexible clamp uses silicone flexible material as the clamping part, it can well protect the surface of the object during the clamping process, and also avoid damage to the surface of the object caused by excessive clamping force.

[0003] Currently, flexible clamps mainly include flexible clamps and flexible fingers. For example, the public document with publication number CN219748045U discloses a flexible clamp, and the flexible clamp can be divided into a flexible clamp that grasps inward and a flexible clamp that stretches outward. The public document with publication number CN207027538U discloses a flexible manipulator composed of flexible fingers. The flexible manipulator can be suitable for clamping some larger objects, and the flexible clamp is generally suitable for clamping some smaller objects.

[0004] However, some specialized objects cannot be clamped. For example, some disc-shaped objects with a central hole are formed by curling thin sheets, such as the magnetic ring of a transformer, which is a circular structure formed by winding very thin material. This structure cannot be clamped by any of the above-mentioned flexible clamps. Whether clamping from the center hole of the magnetic ring or from the outer contour, the wound material will spread out. Therefore, conventional flexible clamps are unable to clamp such objects.

[0005] In addition, for some objects with relatively high density and central holes, the clamping force of the flexible clamp itself is limited by air pressure and the flexible material itself and cannot be very large. Therefore, some objects with high density and central holes are difficult to clamp using the above two clamps. Utility Model Content

[0006] The technical problem to be solved by the utility model is to provide a combined flexible clamp, which combines peripheral flexible fingers and a central inner-supporting flexible clamp, thereby being adaptable to the clamping of some special objects.

[0007] In order to solve the above technical problems, the technical solution of the utility model is: a combined flexible clamp, including a mounting seat, on which a peripheral flexible clamp assembly is fixedly installed, and the peripheral flexible clamp assembly includes at least two peripheral flexible fingers fixed on the mounting seat, each peripheral flexible finger is provided with an external clamping air circuit connector connected to the external clamping drive air circuit, and the external clamping drive air circuit drives the flexible fingers to bend inward for clamping; a central internal support flexible clamp is also installed on the mounting seat, and the central internal support flexible clamp is located in the clamping area of ​​the peripheral flexible clamp assembly, and the central internal support flexible clamp is provided with an internal support air circuit connector connected to the internal support clamping drive air circuit, and the internal support clamping drive air circuit drives the central internal support flexible clamp to open and clamp from the inside to the outside.

[0008] As a preferred solution, the peripheral flexible clamp assembly can be detachably mounted on the mounting seat.

[0009] As a preferred solution, the mounting seat is provided with a strip-shaped adjustment hole extending from the outside to the inside, a peripheral adjustment bolt is constrained in the strip-shaped adjustment hole, the peripheral adjustment bolt is connected to a finger mounting plate, and the peripheral flexible finger is fixed on the finger mounting plate.

[0010] As a preferred solution, a recessed groove is provided at the upper end of the mounting seat, the strip-shaped adjustment hole is provided in the recessed groove, the screw head of the peripheral adjustment bolt is sunk into the recessed groove, and a scale ruler for marking the position of the peripheral adjustment bolt is provided at the bottom of the recessed groove.

[0011] As a preferred solution, a connecting shaft is detachably mounted on the mounting seat, an axial through hole is provided on the connecting shaft, the center inner support flexible chuck is fixed at the lower end of the connecting shaft, and the driving inner cavity of the center inner support flexible chuck is connected to the axial through hole.

[0012] As a preferred solution, a central mounting hole is provided on the mounting seat, a threaded section is provided on the connecting shaft, the connecting shaft passes through the central mounting hole, and locking nuts are fixedly installed on the threaded section above and below the mounting seat.

[0013] As a preferred solution, the number of the peripheral flexible fingers is three and they are evenly distributed around the circumference.

[0014] As a preferred solution, the connection axis is located at the symmetry center of the three peripheral flexible fingers.

[0015] After adopting the above technical solution, the effect of the utility model is as follows: since the combined flexible clamp includes a mounting seat, a peripheral flexible clamp assembly is fixedly installed on the mounting seat, and the peripheral flexible clamp assembly includes at least two peripheral flexible fingers fixed on the mounting seat, each peripheral flexible finger is provided with an external clamping air circuit connector connected to the external clamping drive air circuit, and the external clamping drive air circuit drives the flexible fingers to bend inward for clamping; a central inner supporting flexible clamp is also installed on the mounting seat, and the central inner supporting flexible clamp is located in the clamping area of ​​the peripheral flexible clamp assembly, and the central inner supporting flexible clamp is provided with an inner supporting air circuit connected to the inner supporting clamping drive air circuit. The inner support clamping driving air circuit drives the central inner support flexible chuck to open and clamp from the inside out. Therefore, taking the transformer magnetic ring as an example, when clamping it, the central inner support flexible chuck is in the center of the magnetic ring, and the outer flexible fingers are outside the outer contour of the magnetic ring. Then the outer clamping driving air circuit drives the outer flexible fingers to bend inward to clamp the outer contour of the magnetic ring, and the inner support clamping driving air circuit drives the central inner support flexible chuck to open and clamp the inner hole of the transformer magnetic ring from the inside out. In this way, the annular body of the transformer magnetic ring will be subjected to the clamping force inward and outward, so that the curled transformer magnetic ring will not fall apart, thereby meeting the clamping requirements. Similarly, the combined flexible clamp can also be suitable for clamping some annular objects, such as some metal rings. Such metal rings have high density and heavy weight. The combined flexible clamp can be used to clamp from the inside out and from the outside to the inside, thereby improving the clamping force.

[0016] Furthermore, since the peripheral flexible clamp assembly is detachably mounted on the mounting seat, the peripheral flexible clamp assembly can be disassembled, so that only the central inner supporting flexible clamp head is used to adapt to different clamping situations.

[0017] Furthermore, since the mounting seat is provided with a strip-shaped adjustment hole extending from the outside to the inside, a peripheral adjustment bolt is constrained in the strip-shaped adjustment hole, the peripheral adjustment bolt is connected to a finger mounting plate, and the peripheral flexible finger is fixed on the finger mounting plate, the position of the peripheral flexible finger can be changed by using the strip-shaped adjustment hole and the peripheral adjustment bolt, thereby changing the size of the clamping area.

[0018] Since a recessed groove is provided at the upper end of the mounting seat, the strip-shaped adjustment hole is provided in the recessed groove, the screw head of the peripheral adjustment bolt is sunk into the recessed groove, and a scale ruler for marking the position of the peripheral adjustment bolt is provided at the bottom of the recessed groove. The recessed groove can effectively constrain the screw head of the peripheral adjustment bolt, and the scale ruler can intuitively display the exact position of the peripheral flexible finger.

[0019] Since the mounting seat is detachably mounted with a connecting shaft, an axial through hole is provided on the connecting shaft, the central inner supporting flexible chuck is fixed to the lower end of the connecting shaft, and the driving inner cavity of the flexible chuck is connected to the axial through hole, the connecting shaft can also be disassembled. Therefore, when the central inner supporting flexible chuck is not used, the outer flexible fingers can be used alone.

[0020] Since a central mounting hole is provided on the mounting seat and a threaded section is provided on the connecting shaft, the connecting shaft passes through the central mounting hole, and locking nuts are fixedly installed above and below the mounting seat on the threaded section. The upper and lower heights of the connecting shaft can be adjusted, which makes it more practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0022] Figure 1 It is a three-dimensional diagram of an embodiment of the utility model;

[0023] Figure 2 This is a front view of an embodiment of the utility model;

[0024] In the attached figure: 1. Mounting seat; 2. Peripheral flexible fingers; 3. External clamping air circuit connector; 4. Central internal support flexible chuck; 5. Internal support air circuit connector; 6. Strip adjustment hole; 7. Peripheral adjustment bolt; 8. Finger mounting plate; 9. Sink; 10. Scale; 11. Connecting shaft; 12. Axial through hole; 13. Threaded section; 14. Locking nut. DETAILED DESCRIPTION

[0025] The present invention will be described in further detail below through specific embodiments.

[0026] like Figure 1-2 As shown, a combined flexible clamp includes a mounting base 1, on which a peripheral flexible clamp assembly is fixedly mounted, and the peripheral flexible clamp assembly includes at least two peripheral flexible fingers 2 fixed on the mounting base 1, and each peripheral flexible finger 2 is provided with an external clamping air circuit connector 3 connected to the external clamping drive air circuit, and the external clamping drive air circuit drives the flexible fingers to bend inward for clamping; a central internal support flexible clamp 4 is also installed on the mounting base 1, and the central internal support flexible clamp 4 is located in the clamping area of ​​the peripheral flexible clamp assembly, and an internal support air circuit connector 5 connected to the internal support clamping drive air circuit is provided on the central internal support flexible clamp 4, and the internal support clamping drive air circuit drives the central internal support flexible clamp 4 to open and clamp from the inside to the outside.

[0027] In this embodiment, there are three peripheral flexible fingers 2 and they are evenly distributed around the circumference. The connecting shaft 11 is located at the symmetrical center of the three peripheral flexible fingers 2. The peripheral flexible clamp assembly can be detachably mounted on the mounting base 1. The mounting base 1 is provided with a strip adjustment hole 6 extending from the outside to the inside. The strip adjustment hole 6 is constrained with a peripheral adjustment bolt 7. The peripheral adjustment bolt 7 is connected to a finger mounting plate 8. The peripheral flexible fingers 2 are fixed to the finger mounting plate 8. The upper end of the mounting base 1 is provided with a groove 9. The strip adjustment hole 6 is provided in the groove 9. The screw head of the peripheral adjustment bolt 7 is sunk into the groove 9. The bottom of the groove 9 is provided with a scale 10 marking the position of the peripheral adjustment bolt 7.

[0028] In this embodiment, a connecting shaft 11 is detachably mounted on the mounting seat 1, and an axial through hole 12 is provided on the connecting shaft 11. The central inner support flexible chuck 4 is fixed to the lower end of the connecting shaft 11, and the driving inner cavity of the flexible chuck is connected to the axial through hole 12. A central mounting hole is provided on the mounting seat 1, and a threaded section 13 is provided on the connecting shaft 11. The connecting shaft 11 passes through the central mounting hole, and locking nuts 14 are fixedly mounted on the threaded section 13 above and below the mounting seat 1.

[0029] During the use of this combined flexible clamp, when clamping items such as transformer magnetic rings, first, the central inner support flexible clamp 4 is located in the center of the magnetic ring, and the outer flexible fingers 2 are located outside the outer contour of the magnetic ring. Then the outer clamping drive air path drives the outer flexible fingers 2 to bend inward to clamp the outer contour of the magnetic ring, and the inner support clamping drive air path drives the central inner support flexible clamp 4 to open and tighten the inner hole of the transformer magnetic ring from the inside to the outside. In this way, the annular body of the transformer magnetic ring will be subjected to the clamping force coordinated inward and outward, so that the curled transformer magnetic ring will not spread out, thereby meeting the clamping requirements.

[0030] In this embodiment, the upper and lower heights of the connecting shaft 11 of the combined flexible clamp can be adjusted, so that clamping can be performed at multiple different heights, and the application range is very wide.

[0031] In addition, the peripheral flexible clamp assembly can be disassembled so that only the central inner supporting flexible clamp 4 is used, which can adapt to different clamping situations.

[0032] The connecting shaft 11 can also be removed, thereby removing the central inner support flexible clamp 4, so that the peripheral flexible fingers 2 can be used alone for related clamping operations. In addition, the position of the peripheral flexible fingers 2 can be adjusted using the bar-shaped adjustment holes 6 and the peripheral adjustment bolts 7, thereby changing the size of the clamping area. The scale 10 can also intuitively display the exact position of the peripheral flexible fingers 2, thereby achieving a precise clamping action.

[0033] The air circuit system, actuators such as servo motors, and screw-nut mechanisms mentioned in this embodiment are all current conventional technologies. The specific structures, principles, and other designs of the cylinders, motors, and other transmission mechanisms are disclosed in detail in the "Mechanical Design Manual, Fifth Edition", the 28th printing of the fifth edition in Beijing in April 2008, which belongs to the existing technology and its structure is clear. The SMC training textbook "Modern Practical Pneumatic Technology, 3rd Edition" published by the Machinery Industry Press on August 1, 2008 discloses in detail the vacuum components, gas circuits, and program control, indicating that the air circuit structure in this embodiment is also existing technology and is clear. The book "Motor Drive and Speed ​​Regulation" published by the Chemical Industry Press on July 1, 2015 also introduces the control of the motor and the travel switch in detail. Therefore, the circuit and air circuit connections are clear.

[0034] The above-described embodiments are merely descriptions of preferred implementations of the present invention and are not intended to limit the scope of the present invention. Various modifications and alterations to the technical solutions of the present invention, without departing from the spirit of the present invention, should fall within the scope of protection defined in the claims of the present invention.

Claims

1. A modular flexible clamp, comprising a mounting seat, characterized in that: A peripheral flexible clamp assembly is fixedly mounted on the mounting seat, and the peripheral flexible clamp assembly includes at least two peripheral flexible fingers fixed on the mounting seat, and each peripheral flexible finger is provided with an external clamping air circuit connector connected to the external clamping drive air circuit, and the external clamping drive air circuit drives the flexible fingers to bend inward for clamping; a central internal support flexible chuck is also mounted on the mounting seat, and the central internal support flexible chuck is located in the clamping area of ​​the peripheral flexible clamp assembly, and the central internal support flexible chuck is provided with an internal support air circuit connector connected to the internal support clamping drive air circuit, and the internal support clamping drive air circuit drives the central internal support flexible chuck to open and clamp from the inside out.

2. A combined flexible clamp according to claim 1, characterized in that: The peripheral flexible clamp assembly is detachably mounted on the mounting seat.

3. A combined flexible clamp according to claim 2, characterized in that: The mounting seat is provided with a strip-shaped adjustment hole extending from the outside to the inside, a peripheral adjustment bolt is constrained in the strip-shaped adjustment hole, the peripheral adjustment bolt is connected to a finger mounting plate, and the peripheral flexible finger is fixed on the finger mounting plate.

4. A combined flexible clamp according to claim 3, characterized in that: A sinking groove is provided at the upper end of the mounting seat, the strip-shaped adjustment hole is provided in the sinking groove, the screw head of the peripheral adjustment bolt is sunk into the sinking groove, and a scale ruler for marking the position of the peripheral adjustment bolt is provided at the bottom of the sinking groove.

5. The combined flexible clamp according to claim 1, characterized in that: The mounting seat is detachably provided with a connecting shaft, the connecting shaft is provided with an axial through hole running axially therethrough, the central inner supporting flexible chuck is fixed to the lower end of the connecting shaft, and the driving inner cavity of the flexible chuck is communicated with the axial through hole.

6. A combined flexible clamp according to claim 5, characterized in that: The mounting seat is provided with a central mounting hole, the connecting shaft is provided with a threaded section, the connecting shaft passes through the central mounting hole, and locking nuts are fixedly installed on the threaded section above and below the mounting seat respectively.

7. The combined flexible clamp according to claim 1, characterized in that: The number of the peripheral flexible fingers is three and they are evenly distributed around the circumference.

8. The combined flexible clamp according to claim 6, characterized in that: The connection axis is located at the symmetry center of the three peripheral flexible fingers.

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