Optical fiber probe and clamp thereof

Abstract

The utility model discloses an optical fiber probe and a clamp thereof, the clamp uses the optical fiber probe, the optical fiber probe comprises a transmitting optical fiber cable and a receiving optical fiber cable, the optical fiber probe further comprises a bendable shaping skeleton layer and a flexible coating layer, one end of the transmitting optical fiber cable and one end of the receiving optical fiber cable are connecting ends, and the other ends are free ends. The flexible coating layer coats the free ends of the shaping skeleton layer, the transmitting optical fiber cable and the receiving optical fiber cable to form a probe body, the shaping skeleton layer and the flexible coating layer extend in the extending directions of the transmitting optical fiber cable and the receiving optical fiber cable, the probe body is provided with a cutting end convenient to cut, and the cutting end corresponds to the free end in position. According to the optical fiber probe, the detection angle and length can be adjusted more conveniently, it is ensured that a clamp can accurately clamp an object, and detection of objects of different sizes is met.

Description

Technical Field

[0001] The utility model relates to the technical field of clamp clamping detection, in particular to an optical fiber probe and its clamp. Background Technique

[0002] In the technical field of object clamping, it is often necessary to detect whether an object is clamped by a clamp to ensure that the object can be accurately clamped every time the clamp performs a clamping action. Especially the detection of flexible clamps is quite difficult. The invention disclosure document with the publication number CN115070809A discloses a negative pressure flexible clamp and a method for detecting whether an object is clamped. This flexible clamp detects whether an object is clamped by detecting the bending deformation amplitude of the clamping part of the flexible clamp, or the force on the fingertips, or the deformation amplitude of the driving chamber. And this kind of structure mainly needs to transform the structure of the flexible jaw, resulting in an increase in the cost of the flexible jaw, and the structure is relatively complex, and the forming process is difficult.

[0003] And the most common detection method on the market at present is through an optical fiber detection sensor. Its main structure includes an optical fiber amplifier and an optical fiber probe. An emission optical fiber line and a receiving optical fiber line are connected between the optical fiber amplifier and the optical fiber probe. Its specific structure is recorded in CN210326472U. A laser is emitted by the optical fiber amplifier, and of course, other light sources can also be used. When in use, the optical fiber probe is directed towards the clamping area of the clamp. When an object is clamped, the object will reflect the light emitted by the emission optical fiber line, and the receiving optical fiber line will receive the reflected light. Finally, the detection signal is obtained after being processed and amplified by the optical fiber amplifier. And if the clamp does not clamp an object, the receiving optical fiber line will not receive a signal, and the optical fiber amplifier will have no detection signal.

[0004] And the current optical fiber detection sensor still has the following disadvantages when in use: 1. The current optical fiber probe is mainly a metal probe, and the emission optical fiber line and the receiving optical fiber line are stuffed into the metal probe. The metal probe is difficult to bend. Due to the different sizes of the objects clamped by the clamp, especially the objects clamped by the flexible clamp are relatively small, and the object is between the clamping parts of the flexible jaws. Therefore, if the current metal probe is used, the metal probe needs to be fixed obliquely. When the metal probe is fixed obliquely, it will greatly increase the space above the flexible jaw, resulting in a large operating space required for the flexible jaw to clamp and grab, which conflicts with the use environment of the flexible jaw; 2. Due to the different sizes of the objects clamped by the flexible jaw, there are also a large number of specifications for the flexible jaw. Therefore, when the metal probe is fixedly installed, it is necessary to conveniently adjust the angle to align with objects of different sizes, and it is also necessary to adjust the distance between the end of the metal probe and the object, that is, to adjust the length of the metal probe. This leads to a very high installation difficulty of the metal probe. While the structure is complex, it is also difficult to implement. Summary of the Utility Model

[0005] The first technical problem to be solved by the present utility model is to provide an optical fiber probe that can more conveniently adjust the detection angle to meet the detection of objects of different sizes.

[0006] The second technical problem to be solved by the present utility model is to provide a fixture using the above-mentioned optical fiber probe, which can use the optical fiber probe to detect an object when clamping the object, ensuring that the fixture can accurately clamp the object and meet the detection of objects of different sizes.

[0007] To solve the above technical problems, the technical solution of the present utility model is: an optical fiber probe, including a transmitting optical fiber line and a receiving optical fiber line. The optical fiber probe further includes a bendable shaping bone layer and a flexible coating layer. One end of the transmitting optical fiber line and the receiving optical fiber line is a connection end, and the other end is a free end. The flexible coating layer wraps the free ends of the transmitting optical fiber line and the receiving optical fiber line to form a probe body. The shaping bone layer is arranged inside the flexible coating layer or wraps the outside of the flexible coating layer; both the shaping bone layer and the flexible coating layer extend along the extension direction of the transmitting optical fiber line and the receiving optical fiber line.

[0008] As a preferred solution, the probe body is provided with a cutting end that is convenient for cutting, and the cutting end corresponds to the position of the free end.

[0009] As a preferred solution, the shaping bone layer is a metal shaping bone layer, and the metal shaping bone layer is a metal wire, a metal sheet or a metal tube.

[0010] As a preferred solution, the metal sheet is provided with a guiding structure for restricting the threading of the transmitting optical fiber line and the receiving optical fiber line.

[0011] As a preferred solution, the guiding structure includes at least two threading hole sleeves arranged on the surface of the metal sheet, and the transmitting optical fiber line and the receiving optical fiber line pass through the threading hole sleeves for guiding.

[0012] As a preferred solution, the probe body is further provided with a fixing hole that is convenient for fixing, and the metal sheet is further provided with a wire winding clamp. The wire winding clamp and at least two threading hole sleeves are arranged around the fixing hole, and the transmitting optical fiber line and the receiving optical fiber line are respectively wound around the wire winding clamp and pass through the threading hole sleeves.

[0013] As a preferred solution, the probe body is further provided with a cutting mark and a length scale corresponding to the cutting mark.

[0014] As a preferred solution, the flexible coating layer is a silicone coating layer or a resin coating layer.

[0015] After adopting the above technical solution, the effects of the present utility model are as follows: Since the optical fiber probe further includes a bendable shaping bone layer and a flexible coating layer, one end of the transmitting optical fiber line and the receiving optical fiber line is a connection end, and the other end is a free end. The flexible coating layer wraps the free ends of the transmitting optical fiber line and the receiving optical fiber line to form a probe body, and the shaping bone layer is disposed inside the flexible coating layer or wraps the outside of the flexible coating layer; both the shaping bone layer and the flexible coating layer extend along the extending direction of the transmitting optical fiber line and the receiving optical fiber line. Therefore, in the structure of this optical fiber probe, the flexible coating layer wraps the transmitting optical fiber line and the receiving optical fiber line, which can protect the transmitting optical fiber line or the receiving optical fiber line and facilitate the bending of the probe body. The shaping bone layer can be shaped when the probe body is bent to ensure that the probe body bends and maintains any state, so that the detection angle can be conveniently adjusted, and finally the detection requirements of objects of different sizes can be met.

[0016] Also, since the probe body is provided with a cutting end that is convenient for cutting, and the cutting end corresponds to the position of the free end, the cutting end of the probe body can be cut only, and the length of the probe body after cutting will change, so as to better meet the detection requirements of objects of different sizes.

[0017] Also, since the metal sheet is provided with a guiding structure for restricting the threading of the transmitting optical fiber line and the receiving optical fiber line. The guiding structure includes at least two threading hole sleeves provided on the surface of the metal sheet, and the transmitting optical fiber line and the receiving optical fiber line pass through the threading hole sleeves for guiding. Therefore, this guiding structure can ensure a better connection between the transmitting optical fiber line and the receiving optical fiber line and the metal sheet before the flexible coating layer is wrapped, ensuring the accurate positions of the transmitting optical fiber line and the receiving optical fiber line during the wrapping process and guaranteeing the accuracy of signal transmission and reception.

[0018] Also, since fixing holes for convenient fixing are provided on the probe body, and a wire winding clamp is provided on the metal sheet, the wire winding clamp and at least two wire threading sleeves are arranged around the fixing holes. The transmitting optical fiber line and the receiving optical fiber line are respectively wound around the wire winding clamp and pass through the wire threading sleeves. The fixing holes can facilitate the better fixing of the probe body, and the wire winding clamp and the wire threading sleeves are arranged around the fixing holes, ensuring that the transmitting optical fiber line and the receiving optical fiber line can better bypass the fixing holes while also ensuring the stable quality of the probe body after the coating process. In addition, due to the presence of the wire winding clamp and the wire threading sleeve, it is convenient for the transmitting optical fiber line and the receiving optical fiber line to bypass the fixing holes. Then, the tails of the transmitting optical fiber line and the receiving optical fiber line exposed from the probe body are located at the rear end of the fixing holes. Therefore, when in use, when the probe body moves with the fixture, tensile forces may be generated on the transmitting optical fiber line and the receiving optical fiber line. This tensile force will be isolated and weakened due to the fixing structure of the fixing holes of the probe body, so that the cutting end of the probe body will not shake, thereby reducing the attenuation of the received light caused by shaking and ensuring the stability of the detection signal.

[0019] Also, since cutting marks and a length scale corresponding to the cutting marks are provided on the probe body, when cutting the probe body, the remaining length of the probe body can be clearly known by using the cutting marks and the length scale, ensuring the accuracy of the cutting operation.

[0020] To solve the above-mentioned another technical problem, the technical solution of the present utility model is: a fixture, including a fixture body, the above-mentioned optical fiber probe is fixed on the fixture body, and the connection ends of the transmitting optical fiber line and the receiving optical fiber line are respectively connected to an optical fiber amplifier.

[0021] Preferably, the fixture body is a flexible clamping jaw, an air path connector with air path communication is installed at the upper end of the flexible clamping jaw, a fixing hole is provided on the optical fiber probe, and the air path connector passes through the fixing hole and presses the optical fiber probe against the upper end of the flexible clamping jaw.

[0022] After adopting the above technical solution, the effect of the present utility model is: Since the above-mentioned optical fiber probe is used in this fixture, the probe body can be bent, so as to ensure the detection of the object in the clamping area of the fixture at a suitable angle, ensuring the accuracy of the detection result, and at the same time, the operation is convenient and the space occupation is relatively small. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The present utility model will be further described below with reference to the drawings and embodiments.

[0024] Figure 1 is a three-dimensional view of the assembled optical fiber probe and the flexible fixture in the embodiment of the present utility model;

[0025] Figure 2It is a top view after the fiber optic probe and the flexible fixture are assembled;

[0026] Figure 3 It is Figure 2 a sectional view taken at A-A;

[0027] Figure 4 It is a schematic structural diagram of the probe body with the flexible coating layer hidden;

[0028] In the attached drawings: 1. Fiber optic probe; 10. Probe body; 101. Flexible coating layer; 102. Metal sheet; 103. Transmitting optical fiber line; 104. Receiving optical fiber line; 105. Cutting mark; 106. Length scale; 107. Fixed hole; 108. Threading hole sleeve; 109. Wire winding clamp; 2. Flexible jaw; 3. Pneumatic connection head; 4. Fiber optic amplifier; 5. Quick connector. Detailed implementation manners

[0029] The following further describes the present utility model in detail through specific embodiments.

[0030] As Figures 1 to 4 shown, a fiber optic probe 1 includes a transmitting optical fiber line 103 and a receiving optical fiber line 104. The fiber optic probe 1 further includes a bendable shaping bone layer and a flexible coating layer 101. One end of the transmitting optical fiber line 103 and the receiving optical fiber line 104 is a connection end, and the other end is a free end. A quick connector 5 convenient for docking with the fiber optic amplifier 4 is provided at the connection end. The optical fiber amplifier, the transmitting optical fiber line 103 and the receiving optical fiber line 104 in this embodiment are all current conventional structures, and the principle of their fiber detection of objects is also currently known technology, which will not be described in detail in this embodiment.

[0031] The shaping bone layer is a metal shaping bone layer. The metal shaping bone layer is a metal wire or a metal sheet 102 or a metal tube. Of course, the shaping bone layer can also be made of other materials. For example, it can be plastic that can be bent within a certain range. Utilizing the material properties of the plastic can also ensure that the fiber optic probe 1 is bent and maintained in the corresponding posture. Of course, it is preferably made of metal material to ensure the stability of the shaped angle posture.

[0032] As Figure 1 shown, the flexible coating layer 101 wraps the shaping bone layer, the free ends of the transmitting optical fiber line 103 and the receiving optical fiber line 104 to form a probe body 10. The shaping bone layer and the flexible coating layer 101 both extend along the extending direction of the transmitting optical fiber line 103 and the receiving optical fiber line 104. The probe body 10 is provided with a cutting end convenient for cutting, and the cutting end corresponds to the free end in position. In this embodiment, the flexible coating layer 101 is a silicone coating layer or a resin coating layer.

[0033] Of course, when the shaped bone layer adopts a metal tube, the metal tube may be coated with a flexible coating layer 101, and the flexible protective layer 101 coats the transmitting optical fiber line 103 and the receiving optical fiber line 104.

[0034] As Figure 4 shown, in this embodiment, preferably, the shaped bone layer adopts a metal sheet 102, and a guiding structure for restricting the threading of the transmitting optical fiber line 103 and the receiving optical fiber line 104 is provided on the metal sheet 102.

[0035] The guiding structure includes at least two threading hole sleeves 108 provided on the surface of the metal sheet 102, and the transmitting optical fiber line 103 and the receiving optical fiber line 104 pass through the threading hole sleeves 108 for guiding.

[0036] A fixing hole 107 for convenient fixing is further provided on the probe body 10, and a wire winding clamp 109 is further provided on the metal sheet 102. The wire winding clamp 109 and at least two threading hole sleeves 108 are arranged around the fixing hole 107. Preferably, two threading hole sleeves 108 are on opposite sides of the fixing hole 107, and the wire winding clamp 109 is on opposite sides in another direction of the fixing hole 107. The transmitting optical fiber line 103 and the receiving optical fiber line 104 are respectively wound around the wire winding clamp 109 and pass through the threading hole sleeves 108. A threading hole sleeve 108 is also provided at the end of the metal sheet 102 (corresponding to the free ends of the transmitting optical fiber line 103 and the receiving optical fiber line 104), so that when the flexible coating layer 101 is coated, it can be ensured that the positions of the transmitting optical fiber line 103 and the receiving optical fiber line 104 do not move during coating, so as to ensure that the coated transmitting optical fiber line 103 and receiving optical fiber line 104 are in the set positions, thus ensuring the accuracy of subsequent detection. The fixing hole 107 can be a circular fixing hole as Figure 4 shown, or a C-shaped fixing hole.

[0037] A cutting mark 105 and a length scale 106 corresponding to the cutting mark 105 are further provided on the probe body 10. The cutting mark 105 can be a cutting mark 105 line or a cutting mark 105 groove, and the length scale 106 can be scale data.

[0038] Since the metal sheet 102 is located on one side of the transmitting optical fiber line 103 and the receiving optical fiber line 104, when the probe body 10 is cut, the transmitting optical fiber line 103 and the receiving optical fiber line 104 will not be excessively squeezed and deformed, so it does not prevent the normal use of the probe body.

[0039] As Figures 1 to 3As shown, this embodiment also discloses a fixture, including a fixture body, which can be a flexible jaw 2 or other mechanical jaws. The optical fiber probe 1 is fixed on the fixture body, and the connection ends of the transmitting optical fiber line 103 and the receiving optical fiber line 104 are respectively connected to the optical fiber amplifier 4.

[0040] Among them, in this embodiment, the fixture body is a flexible jaw 2. An air path connector 3 with connected air paths is installed at the upper end of the flexible jaw 2. A fixing hole 107 is provided on the optical fiber probe 1. The air path connector 3 passes through the fixing hole 107 and presses the optical fiber probe 1 against the upper end of the flexible jaw 2. As Figure 1 shown, after the optical fiber probe 1 is fixed on the flexible jaw 2, the transmitting optical fiber line 103 and the receiving optical fiber line 104 exposed outside the probe body 10 may be involved with the probe body 10 during the movement of the flexible jaw 2. Since the air path connector 3 directly filters this pulling force, finally the end of the optical fiber probe 1 will not shake due to pulling, so that the position of the optical fiber probe 1 can be ensured to be stable and the detection signal is also stable.

[0041] Of course, the fixing hole 107 may not be provided on the optical fiber probe 1. Then the optical fiber probe 1 can be bonded to the flexible jaw 2 with glue, and the fixing position of the optical fiber probe 1 may not be the upper end of the flexible jaw 2, but can also be fixed on the side of the flexible jaw 2.

[0042] By fixing the optical fiber probe 1, the fixture body can be cut and bent according to the size of the object to be clamped, and the adjustment is very flexible. The bent optical fiber probe 1 can be kept in the current state through the shaping bone layer to ensure the accuracy of the detection result.

[0043] The above-described embodiments are only descriptions of the preferred embodiments of the present invention and do not limit the scope of the present invention. Without departing from the design spirit of the present invention, various deformations and modifications made to the technical solutions of the present invention shall fall within the protection scope determined by the claims of the present invention.

Claims

1. An optical fiber probe, comprising a transmitting optical fiber line and a receiving optical fiber line, characterized in that: The optical fiber probe further includes a bendable shaping bone layer and a flexible coating layer. One end of the transmitting optical fiber line and the receiving optical fiber line is a connection end, and the other end is a free end. The flexible coating layer wraps the free ends of the transmitting optical fiber line and the receiving optical fiber line to form a probe body. The shaping bone layer is arranged inside the flexible coating layer or wraps the outside of the flexible coating layer. Both the shaping bone layer and the flexible coating layer extend along the extension direction of the transmitting optical fiber line and the receiving optical fiber line.

2. The fiber optic probe according to claim 1, characterized in that: The probe body is provided with a cutting end that is convenient for cutting, and the cutting end corresponds to the position of the free end.

3. The fiber optic probe according to claim 1, wherein: The shaping bone layer is a metal shaping bone layer, and the metal shaping bone layer is a metal wire, a metal sheet or a metal tube.

4. The fiber optic probe according to claim 3, wherein: The metal sheet is provided with a guiding structure for restricting the threading of the transmitting optical fiber line and the receiving optical fiber line.

5. The fiber optic probe according to claim 4, characterized in that: The guiding structure includes at least two threading hole sleeves arranged on the surface of the metal sheet, and the transmitting optical fiber line and the receiving optical fiber line pass through the threading hole sleeves for guiding.

6. The fiber optic probe according to claim 5, wherein: The probe body is further provided with a fixing hole that is convenient for fixing. The metal sheet is further provided with a wire winding clamp. The wire winding clamp and at least two threading hole sleeves are arranged around the fixing hole. The transmitting optical fiber line and the receiving optical fiber line are respectively wound around the wire winding clamp and pass through the threading hole sleeves.

7. The fiber optic probe according to claim 2, characterized in that: The probe body is further provided with a cutting mark and a length scale corresponding to the cutting mark.

8. The fiber optic probe according to claim 1, characterized in that: The flexible coating layer is a silicone coating layer or a resin coating layer.

9. A fixture, comprising a fixture body, characterized in that: The fixture body is fixed with the optical fiber probe as described in claim 1, and the connection ends of the transmitting optical fiber line and the receiving optical fiber line are respectively connected to an optical fiber amplifier.

10. A fixture according to claim 9, characterized in that: The fixture body is a flexible clamping jaw. An air path connector with an air path connection is installed at the upper end of the flexible clamping jaw. The optical fiber probe is provided with a fixing hole, and the air path connector passes through the fixing hole and presses the optical fiber probe against the upper end of the flexible clamping jaw.

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