High-precision automatic fiber cutter

Abstract

The present invention discloses a high-precision automatic optical fiber cutter. It mainly solves the problem that the existing optical fiber cutter cannot complete the automatic cutting of optical fiber in one go and the problem that the positioning accuracy of optical fiber is low and affects the flatness of the optical fiber end face. It is characterized in that a linkage frame (10) is provided below the tool mounting seat (3) and the jumper mounting seat (4), and the linkage frame (10) can make the tool mounting seat (3) and the jumper mounting seat (4) synchronously close together and separate when the linkage frame (10) reciprocates in the direction of the vertical horizontal slide rail (7). The high-precision automatic optical fiber cutter of the present invention can realize automatic cutting and breaking of optical fiber in one go by controlling the forward and reverse reciprocating linear motion of the linkage frame. The optical fiber is clamped in parallel and pressed. The optical fiber is not squeezed by lateral force during the clamping process. The optical fiber is accurately positioned and the surface of the optical fiber end face is flat, which effectively improves the optical fiber cutting efficiency and cutting accuracy.

Description

Technical Field

[0001] The present invention relates to an optical fiber cutting device, in particular to a high-precision automatic optical fiber cutter. Background Art

[0002] A fiber cleaver is a specialized device for cutting optical fibers, used to cut quartz glass fibers as thin as a hair. The cut fiber ends must remain flat even after hundreds of times magnification before they can be used for device packaging, cold splicing, and spark fusion splicing. Existing fiber cleavers consist of a base, a fiber clamp, a cutter mechanism, a jumper-breaking mechanism, and a fiber cover. The fiber clamp and cutter mechanism are mounted on the base. The cutter mechanism includes a disc-shaped cutting blade and a blade holder. The fiber cover is hinged to the base and can be opened and closed. To use, the fiber clamp secures the fiber, the cover snaps shut, and the cutter blade is controlled to cut the fiber. Fiber cleaving essentially involves sliding the cutter blade across the fiber, leaving a scratch. The jumper-breaking mechanism then strikes the fiber, neatly severing it at the scratch. The operating sequence is as follows: ① The fiber cover snaps shut to compress the fiber → ② The cutter blade cuts the fiber → ③ The fiber is broken → ④ The cover opens. Existing fiber optic cutters have the following technical defects: 1. During the cutting operation, it is necessary to manually fasten the fiber optic cover plate first, and then control the cutting blade to cut the optical fiber. After the optical fiber is cut, the fiber optic cover plate must be manually opened to complete the optical fiber cutting. The fiber optic cover plate fastening, optical fiber cutting, optical fiber breaking and optical fiber cover plate opening cannot be completed in one go, making it difficult to achieve automatic optical fiber cutting. 2. One end of the fiber optic cover plate is hinged to the base body. When the fiber optic cover plate is fastened, it is not pressed parallel but tilted. The optical fiber is squeezed by the lateral force, causing a small lateral offset of the optical fiber. Due to the small diameter of the optical fiber, the small offset of the optical fiber during the pressing process will affect its cutting position and cutting depth. The positioning accuracy of the optical fiber is low, which affects the flatness of the plane at the end face of the optical fiber. Summary of the Invention

[0003] In order to solve the problems that existing optical fiber cutters cannot complete the automatic cutting of optical fibers in one go and are difficult to achieve, and the low positioning accuracy of optical fibers affects the flatness of the optical fiber end face, the present invention provides a high-precision automatic optical fiber cutter. The high-precision automatic optical fiber cutter can automatically cut and break optical fibers in one go by controlling the forward and reverse reciprocating linear motion of the linkage frame. The optical fiber is clamped in parallel and pressed. The optical fiber is not squeezed by lateral force during the clamping process. The optical fiber is accurately positioned and the optical fiber end face is flat, which effectively improves the optical fiber cutting efficiency and cutting accuracy.

[0004] In order to achieve the above-mentioned purpose, the present invention adopts the following technical solutions: a high-precision automatic optical fiber cutter, comprising a tool mechanism and a jump piece breaking mechanism, the tool mechanism comprising a disc-shaped cutting blade and a tool holder, the jump piece breaking mechanism comprising a jump piece and a force storage spring, the tool mechanism and the jump piece breaking mechanism are respectively mounted on a tool mounting seat and a jump piece mounting seat, the tool mounting seat and the jump piece mounting seat are respectively fixed to a first slider and a second slider, the first slider and the second slider are mounted on the same transverse slide rail, the lower ends of the tool mounting seat and the jump piece mounting seat are respectively connected to a tool linkage pin and a jump piece linkage pin, a linkage frame is provided below the tool mounting seat and the jump piece mounting seat, a first guide rail and a second guide rail are provided on both sides of the linkage frame, the first guide rail and the second guide rail are symmetrical, the tool linkage pin and the jump piece linkage pin are respectively located in the first guide rail and the second guide rail, the linkage frame can make the tool mounting seat and the jump piece mounting seat synchronously close together and synchronously separate when reciprocating in the direction perpendicular to the transverse slide rail;

[0005] A vertical guide rail is fixed in the tool mounting seat, and a lifting slide is installed on the vertical guide rail. The tool holder in the tool mechanism is fixed on the lifting slide. The linkage frame is provided with a slope, and the slope is located on the inner side of the first guide rail. When the tool mounting seat and the jumper mounting seat are brought together, the lower end of the lifting slide can be in conflict with the slope, thereby causing the lifting slide to drive the tool holder to rise.

[0006] The corresponding surfaces of the tool mounting seat and the jumper mounting seat are both provided with a clamping block for clamping the optical fiber, the jumper mounting seat is provided with a spring seat, and the force storage spring is installed between the spring seat and the jumper;

[0007] The jump piece is provided with a push pin, and the tool holder is provided with a push block. When the tool mounting seat and the jump piece mounting seat are close together, the push block can conflict with the push pin and push the push pin to retract the jump piece into the jump piece mounting seat.

[0008] The track of the first guide rail is an isosceles trapezoid, and the first guide rail is divided into a closing section chute, a holding section chute, a separation section chute and a reset section chute. The bottom surfaces of the closing section chute, the holding section chute and the separation section chute are in the same plane, and the bottom surface of the reset section chute at the connection with the separation section chute is located below the bottom surface of the separation section chute. An inclined surface is provided on the bottom surface of the reset section chute, and the bottom surface of the reset section chute at the connection with the closing section chute is located above the bottom surface of the closing section chute.

[0009] The reset section chute is provided with a straight extension section chute at the junction of the separation section chute.

[0010] The tool linkage pin and the jumper linkage pin are both elastic pins that can be extended and retracted up and down.

[0011] The lower end of the lifting slider is cam-shaped.

[0012] The top block has a certain length in the vertical direction, and the length can ensure that the jumper will not pop out before the cutting blade slides over the optical fiber.

[0013] The jumper is provided with two straight plates parallel to each other, the cutting blades correspond to the middle of the two straight plates, and the ejector pins are located at the lower ends of the straight plates.

[0014] The present invention has the following beneficial effects: due to the adoption of the above technical solution, the optical fiber can be automatically cut and broken at one time by controlling the forward and reverse reciprocating linear motion of the linkage frame. The optical fiber is clamped in parallel and pressed. The optical fiber is not squeezed by lateral force during the clamping process. The optical fiber is accurately positioned and the surface of the optical fiber end face is flat, which effectively improves the optical fiber cutting efficiency and cutting accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a perspective view of the present invention.

[0016] Figure 2 It is a three-dimensional diagram from another angle of the present invention.

[0017] Figure 3 It is a three-dimensional diagram of the tool mechanism 1 in the present invention.

[0018] Figure 4 It is a three-dimensional diagram of the jumping piece interrupting mechanism 2 in the present invention.

[0019] Figure 5 It is a three-dimensional diagram of the linkage frame 4 in the present invention.

[0020] Figure 6 yes Figure 5 Top view of .

[0021] Figure 7 yes Figure 6 AA structural cross-sectional view.

[0022] In the figure: 1- tool mechanism, 101- cutting blade, 102- tool holder, 103- ejector block, 2- jump piece interrupting mechanism, 201- jump piece, 202- force storage spring, 203- ejector pin, 204- straight plate, 3- tool mounting seat, 4- jump piece mounting seat, 5- first slider, 6- second slider, 7- horizontal slide rail, 8- tool linkage pin, 9- jump piece linkage pin, 10- linkage frame, 11- first guide rail, 1101- closing section chute, 1102- holding section chute, 1103- separation section chute, 1104- reset section chute, 1105- inclined plane, 1106- straight extension section chute, 12- second guide rail, 13- vertical guide rail, 14- lifting slider, 15- ramp, 16- clamping block, 17- spring seat. Implementation Method

[0023] The technical solution of the present invention is described clearly and completely below with reference to the accompanying drawings.

[0024] like Figures 1 to 7 As shown, a high-precision automatic optical fiber cutter includes a tool mechanism 1 and a jump piece breaking mechanism 2. The tool mechanism 1 includes a disc-shaped cutting blade 101 and a tool holder 102. The jump piece breaking mechanism 2 includes a jump piece 201 and a force storage spring 202. The tool mechanism 1 and the jump piece breaking mechanism 2 are respectively mounted on a tool mounting seat 3 and a jump piece mounting seat 4. The tool mounting seat 3 and the jump piece mounting seat 4 are respectively fixed on a first slider 5 and a second slider 6. The first slider 5 and the second slider 6 are mounted on the same transverse slide rail 7. The tool mounting seat 3 and the jump piece mounting seat The lower end of the seat 4 is respectively connected to the tool linkage pin 8 and the jump piece linkage pin 9. A linkage frame 10 is provided below the tool mounting seat 3 and the jump piece mounting seat 4. The first guide rail 11 and the second guide rail 12 are provided on both sides of the linkage frame 10. The first guide rail 11 and the second guide rail 12 are symmetrical. The tool linkage pin 8 and the jump piece linkage pin 9 are respectively located in the first guide rail 11 and the second guide rail 12. When the linkage frame 10 reciprocates in the direction perpendicular to the transverse slide rail 7, the tool mounting seat 3 and the jump piece mounting seat 4 can be synchronously closed and separated.

[0025] A vertical guide rail 13 is fixed in the tool mounting seat 3, and a lifting slider 14 is installed on the vertical guide rail 13. The tool holder 102 in the tool mechanism 1 is fixed on the lifting slider 14. The linkage frame 10 is provided with a slope 15, and the slope 15 is located on the inner side of the first guide rail 11. When the tool mounting seat 3 and the jump piece mounting seat 4 are brought together, the lower end of the lifting slider 14 can conflict with the slope 15, thereby causing the lifting slider 14 to drive the tool holder 102 to rise.

[0026] The corresponding surfaces of the tool mounting seat 3 and the jump piece mounting seat 4 are both provided with a clamping block 16 for clamping the optical fiber. A spring seat 17 is provided in the jump piece mounting seat 4, and the force storage spring 202 is installed between the spring seat 17 and the jump piece 201; the clamping block 16 is made of rubber to avoid damage to the optical fiber.

[0027] The jumper 201 is provided with a push pin 203, and the tool holder 102 is provided with a push block 103. When the tool mounting seat 3 and the jumper mounting seat 4 are brought together, the push block 103 can contact and push the push pin 203, causing the jumper 201 to retract into the jumper mounting seat 4. When the tool mounting seat 3 and the jumper mounting seat 4 are closed to clamp the optical fiber, the jumper 201 has already retracted into the jumper mounting seat 4 and will not contact the optical fiber.

[0028] Due to the adoption of the above technical solution, the transverse slide rail 7 is fixed on the frame, and a guide device for conveying optical fiber is provided on the frame. The cutting part on the optical fiber is between the tool mounting seat 3 and the jumper mounting seat 4. When cutting the optical fiber, the linkage frame 10 moves linearly to the left (based on the orientation in the figure), and the tool mounting seat 3 and the jumper mounting seat 4 move synchronously toward the direction of the optical fiber along the transverse slide rail 7. The top block 103 pushes the jumper 201 into the jumper mounting seat 4 through the top pin 203, and the clamping blocks 16 on the tool mounting seat 3 and the jumper mounting seat 4 are pressed against the bottom surface of the optical fiber. The optical fiber is clamped. The lower end of the lift block 14 is now positioned on the slope 15. The linkage frame 10 continues to advance, and the lift block 14, propelled by the slope 15, rises upward, driving the cutting blade 101 from bottom to top. As the cutting blade 101 passes over the optical fiber, it scratches the surface of the optical fiber. The lift block 103 disengages the ejector pin 203, and the jumper 201, under the action of the force storage spring 202, automatically pops out and strikes the optical fiber, severing the fiber at the scratch, completing the fiber cutting. After the fiber cutting is completed, the linkage frame 10 continues to move leftward. Under the action of the first guide rail 11 and the second guide rail 12, the cutter mounting block 3 and the jumper mounting block 4 simultaneously separate outward along the transverse rail 7 until they reach their initial position on the transverse rail 7. At this point, the lower end of the lift block 14 disengages the slope 15 and rests on the upper end surface of the linkage frame 10. The linkage frame 10 then reverses direction (moves rightward) to return to its initial position. The lower end of the lift block 14 disengages the linkage frame 10 and also returns to its initial position. When cutting optical fibers, the present invention can realize automatic cutting and breaking of optical fibers at one time by controlling the forward and reverse reciprocating linear motion of the linkage frame 10. The optical fibers are clamped in parallel and pressed. The optical fibers are not squeezed by lateral forces during the clamping process. The optical fibers are accurately positioned and the end faces of the optical fibers are flat, which effectively improves the efficiency and accuracy of optical fiber cutting.

[0029] The trajectory of the first guide rail 11 is an isosceles trapezoid, and the first guide rail 11 is divided into a closing section chute 1101, a holding section chute 1102, a separation section chute 1103 and a reset section chute 1104. The bottom surfaces of the closing section chute 1101, the holding section chute 1102 and the separation section chute 1103 are in the same plane, and the bottom surface of the reset section chute 1104 at the connection with the separation section chute 1103 is located below the bottom surface of the separation section chute 1103. An inclined surface 1105 is provided on the bottom surface of the reset section chute 1104, and the bottom surface of the reset section chute 1104 at the connection with the closing section chute 1101 is located above the bottom surface of the closing section chute 1101. When the tool linkage pin 8 is located in the closing section chute 1101, the linkage frame 10 moves leftward to synchronously close the tool mounting seat 3 and the jumper mounting seat 4. When the tool linkage pin 8 is located in the closing section chute 1103, the linkage frame 10 moves leftward to synchronously separate the tool mounting seat 3 and the jumper mounting seat 4. When the tool linkage pin 8 is located in the reset section chute 1104, the linkage frame 10 moves rightward to reset, and at the same time, reset the lifting slide 14. The second guide rail 12 is symmetrical in structure to the first guide rail 11 and operates on the same principle.

[0030] The reset section chute 1104 is provided with a straight extension section chute 1106 at the junction of the separation section chute 1103. The straight extension section chute 1106 acts as a buffer to prevent the tool linkage pin 8 and the jumper linkage pin 9 from colliding with the linkage frame 10 after entering the reset section chute 1104, and also facilitates the control of production rhythm.

[0031] The tool linkage pin 8 and the jumper linkage pin 9 are elastic pins that can be stretched up and down. The tool linkage pin 8 and the jumper linkage pin 9 can only be in the set running track of the first guide track 11 and the second guide track 12.

[0032] The lower end of the lifting slide block 14 is cam-shaped. When the lower end of the lifting slide block 14 contacts the slope 15 on the linkage frame 10, it can contact smoothly to avoid blocking.

[0033] The top block 103 has a certain length in the vertical direction, and this length can ensure that the jumper 201 will not pop out before the cutting blade 101 slides over the optical fiber.

[0034] The jumper 201 is provided with two parallel straight plates 204, the cutting blade 101 corresponds to the middle of the two straight plates 204, and the ejector pin 203 is located at the lower end of the straight plates 204. After the jumper 201 pops out, it hits both sides of the optical fiber scratch to break the optical fiber.

Claims

1. A high-precision automatic optical fiber cutter, comprising a tool mechanism (1) and a jumper breaking mechanism (2), wherein the tool mechanism (1) comprises a disc-shaped cutting blade (101) and a tool holder (102), and the jumper breaking mechanism (2) comprises a jumper (201) and a force storage spring (202), and is characterized in that: The tool mechanism (1) and the jump piece breaking mechanism (2) are respectively mounted on the tool mounting seat (3) and the jump piece mounting seat (4); the tool mounting seat (3) and the jump piece mounting seat (4) are respectively fixed on the first slider (5) and the second slider (6); the first slider (5) and the second slider (6) are mounted on the same transverse slide rail (7); the lower ends of the tool mounting seat (3) and the jump piece mounting seat (4) are respectively connected with a tool linkage pin (8) and a jump piece linkage pin (9); the tool mounting seat (3) and the jump piece mounting seat ( 4), a linkage frame (10) is provided below the linkage frame (10), a first guide rail (11) and a second guide rail (12) are provided on both sides of the linkage frame (10), the first guide rail (11) and the second guide rail (12) are symmetrical, the tool linkage pin (8) and the jump piece linkage pin (9) are respectively located in the first guide rail (11) and the second guide rail (12), and the linkage frame (10) can make the tool mounting seat (3) and the jump piece mounting seat (4) synchronously close together and synchronously separate when reciprocating in the direction perpendicular to the horizontal slide rail (7); A vertical guide rail (13) is fixed in the tool mounting seat (3), and a lifting slide block (14) is installed on the vertical guide rail (13). The tool holder (102) in the tool mechanism (1) is fixed on the lifting slide block (14). A slope (15) is provided on the linkage frame (10), and the slope (15) is located on the inner side of the first guide rail (11). When the tool mounting seat (3) and the jumper mounting seat (4) are brought together, the lower end of the lifting slide block (14) can collide with the slope (15), thereby causing the lifting slide block (14) to drive the tool holder (102) to rise. A clamping block (16) for clamping the optical fiber is provided on the corresponding surfaces of the tool mounting seat (3) and the jumper mounting seat (4); a spring seat (17) is provided in the jumper mounting seat (4); and the force storage spring (202) is installed between the spring seat (17) and the jumper (201); The jump piece (201) is provided with a push pin (203), and the tool holder (102) is provided with a push block (103). When the tool mounting seat (3) and the jump piece mounting seat (4) are close together, the push block (103) can contact with the push pin (203) and push the push pin (203) to retract the jump piece (201) into the jump piece mounting seat (4). The tool linkage pin (8) and the jump piece linkage pin (9) are both elastic pins that can be extended and retracted up and down, and the lower end of the lifting slider (14) is cam-shaped.

2. The high-precision automatic optical fiber cutter according to claim 1, characterized in that: The track of the first guide rail (11) is in the shape of an isosceles trapezoid. The first guide rail (11) is divided into a closing section chute (1101), a holding section chute (1102), a separation section chute (1103) and a reset section chute (1104). The bottom surfaces of the closing section chute (1101), the holding section chute (1102) and the separation section chute (1103) are in the same plane. The bottom surface of the reset section chute (1104) where it connects with the separation section chute (1103) is located below the bottom surface of the separation section chute (1103). An inclined surface (1105) is provided on the bottom surface of the reset section chute (1104). The bottom surface of the reset section chute (1104) where it connects with the closing section chute (1101) is located above the bottom surface of the closing section chute (1101).

3. The high-precision automatic optical fiber cutter according to claim 2, characterized in that: The reset section chute (1104) is provided with a straight extension section chute (1106) at the junction of the separation section chute (1103).

4. A high-precision automatic optical fiber cutter according to claim 1, 2 or 3, characterized in that: The top block (103) has a certain length in the vertical direction, and the length can ensure that the jumper (201) will not pop out before the cutting blade (101) slides over the optical fiber.

5. A high-precision automatic optical fiber cutter according to claim 1, 2 or 3, characterized in that: The jumper (201) is provided with two parallel straight plates (204), the cutting blade (101) corresponds to the middle of the two straight plates (204), and the ejector pin (203) is located at the lower end of the straight plates (204).

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