Fiber spiral anchor rod thread trimming machine

Abstract

The invention relates to the technical field of thread trimming, and provides a thread trimming machine for a fiber spiral anchor rod, which can realize automatic trimming of threads on the fiber spiral anchor rod, can synchronously clamp an untrimmed part and a trimmed part on the fiber spiral anchor rod in the trimming process, has a better clamping and positioning effect on the fiber spiral anchor rod, and is high in practicability. The thread trimming precision on the fiber spiral anchor rod is high, the operation efficiency is high, the thread trimming device comprises a three-jaw chuck, the three-jaw chuck is provided with a tooth plate, the thread trimming device further comprises a main body frame and an alternate switching clamping assembly, the three-jaw chuck is rotationally connected to the main body frame, and a first variable frequency motor is installed on the main body frame and used for rotationally driving the three-jaw chuck; the alternate transfer clamping assembly comprises an installation conveying belt, the installation conveying belt is installed on the main body frame, a plurality of first centering clamping frames and a plurality of second centering clamping frames are installed on the installation conveying belt, and a first inward pushing rail strip and a second inward pushing rail strip are fixedly connected to the main body frame.

Description

Technical Field

[0001] The invention relates to the technical field of thread finishing, in particular to a fiber spiral anchor thread finishing machine. Background Art

[0002] As we all know, fiber spiral anchor is a new type of anchor, which is a composite material. It is made of glass fiber yarn, resin and curing agent through winding, extrusion, pulling and high-temperature curing. The anchor rod body is fully threaded. In order to facilitate the preparation and trimming of the full thread on the anchor rod body, we propose a fiber spiral anchor thread trimming machine.

[0003] After searching, the Chinese patent application number CN201220699492.4 discloses a glass fiber reinforced plastic anchor rod thread trimming machine, which is roughly described as including a frame, a driving device is installed on the frame, the driving device is connected to the pulley through a transmission device, the pulley is connected to the bearing seat, the bearing seat is installed with a three-jaw chuck, the three-jaw chuck is provided with a tooth plate, a guide rail is installed on the guide rail, a linear bearing is provided on the guide rail, and an anchor rod clamp is installed on the linear bearing. When in use, the glass fiber reinforced plastic anchor rod is placed on the anchor rod clamp and clamped. When trimming the thread, the anchor rod is pushed into the die by hand, and the anchor rod and the anchor rod clamp perform linear motion on the linear bearing guide rail through the linear bearing. The motor first drives the small pulley to rotate through the reducer, and the small pulley drives the large pulley to rotate through the belt. The large pulley drives the three-jaw chuck to rotate through the bearing seat. The three-jaw chuck clamps the die to rotate. When the non-rotating FRP anchor rod is pushed into the rotating die, the anchor rod automatically moves forward due to the guidance of the thread. When one end of the FRP anchor rod is about to complete the stroke along the linear bearing guide, the rotation of the motor can be stopped by the circuit forward and reverse switch, one end of the FRP anchor rod is released, and the other end of the FRP anchor rod is clamped, and then the operation continues. The entire circuit is controlled by a forward and reverse switch to control the forward and reverse rotation of the motor to complete the forward, backward and stop of the FRP anchor rod.

[0004] Although the above-mentioned existing technical solution can realize the trimming of the thread on the anchor rod, when trimming the thread, the anchor rod is pushed into the die by hand. It can be seen that the automatic loading of the anchor rod needs to rely on manual labor, the degree of automation needs to be further improved, the operating efficiency needs to be further enhanced, and the practicality needs to be further improved. Summary of the Invention

[0005] In response to the deficiencies in the prior art, the present invention provides a fiber spiral anchor thread trimming machine, which can realize automatic trimming of the threads on the fiber spiral anchor. During the trimming process, the untrimmed parts and the trimmed parts of the fiber spiral anchor can be synchronously clamped. The clamping and positioning effect of the fiber spiral anchor is good, the thread trimming accuracy on the fiber spiral anchor is high, and continuous trimming operations of the fiber spiral anchor can be realized with high operating efficiency.

[0006] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a fiber spiral anchor thread finishing machine, comprising a three-jaw chuck, the three-jaw chuck is provided with a tooth plate, and also comprises a main frame and an alternating switching clamping assembly, the three-jaw chuck is rotatably connected to the main frame, and a first variable frequency motor is installed on the main frame, the first variable frequency motor is used for the rotational drive of the three-jaw chuck, the alternating switching clamping assembly comprises an installation conveyor belt, the installation conveyor belt is installed on the main frame, a plurality of first centering clamping frames and a plurality of second centering clamping frames are installed on the installation conveyor belt, a first inward pushing track bar and a second inward pushing track bar are fixedly connected to the main frame, the first inward pushing track bar is matched with a plurality of the first centering clamping frames, the second inward pushing track bar is matched with a plurality of the second centering clamping frames, and an inner support feeding structure is installed in the main frame.

[0007] Preferably, the internal supporting loading structure includes a first fixed bracket and a second fixed bracket, the first fixed bracket and the second fixed bracket are both fixedly connected to the main frame, the first fixed bracket and the second fixed bracket are both rotatably connected to the first rotating frame and the second rotating frame, a lifting frame is rotatably connected between the two first rotating frames, a second rotating frame located on the front side is rotatably connected to the lifting frame, a lifting bracket is slidably connected in the lifting frame, and a plurality of tension springs are connected between the lifting bracket and the lifting frame, and an electric drive rod is installed at the rear end of a second rotating frame located on the rear side, and a linkage structure is installed in the lifting frame, and the linkage structure is driven by the electric drive rod. The linkage structure can realize the rotation control between the second rotating frame located on the rear side and the lifting frame, and the linkage structure can also realize the height control of the lifting bracket relative to the lifting frame.

[0008] Preferably, the linkage structure includes an externally threaded cylinder, a sliding column is slidably connected to the externally threaded cylinder, the sliding column is connected to the driving rod of the electric driving rod, a connecting spring is fixedly connected between the externally threaded cylinder and the sliding column, the sliding column is slidably connected to a second rotating frame located on the rear side, a guide hole cavity is opened in the lifting frame, an internally threaded sleeve is fixedly connected to the guide hole cavity, the internally threaded sleeve is threadedly connected to the externally threaded cylinder, the sliding column is fixedly connected to a traction rope, and the traction rope is fixedly connected to the lifting bracket.

[0009] Preferably, a limiting ring is fixedly connected to the sliding column, the limiting ring is fixedly connected to the connecting spring, the sliding column is rotatably connected to the end frame, the end frame is slidably connected in the guide hole cavity, the traction rope is fixedly connected to the end frame, and a rope hole is provided at the bottom end of the lifting frame, the rope hole is communicated with the guide hole cavity, and the rope hole is used for passing the traction rope.

[0010] Preferably, the first fixing bracket and the second fixing bracket are both fixedly connected to an extension reinforcement rod, the two extension reinforcement rods are both fixedly connected to the main frame, and the first fixing bracket and the second fixing bracket are both fixedly connected to an upward-flipping limit rod.

[0011] Preferably, two supporting groove blocks are provided at the top end of the lifting bracket, and one end of the two supporting groove blocks away from the two upward-flipping limit tilting rods is fixedly connected to a vertical limit plate.

[0012] Preferably, a driving support roller and a driven support roller are rotatably connected to the main frame, and the driving support roller and the driven support roller are both transmission-connected to the installation conveyor belt. A second variable frequency motor is installed on the main frame, and the second variable frequency motor is used for rotationally driving the driving support roller.

[0013] Preferably, the installation conveyor belt is fixedly connected to a plurality of track cross bars outside, a plurality of the first pair of clamping frames are respectively slidably connected to the plurality of the track cross bars, a plurality of the second pair of clamping frames are also respectively slidably connected to the plurality of track cross bars, a plurality of the first pair of clamping frames and a plurality of the second pair of clamping frames are both fixedly connected to phase-separating springs, both ends of the plurality of track cross bars are fixedly connected to end connecting blocks, and a plurality of the end connecting blocks are respectively fixedly connected to the plurality of phase-separating springs.

[0014] Preferably, the first pair of centering clamping frames and the second pair of centering clamping frames are both rotatably connected with an entry push wheel and an exit push wheel, the two entry push wheels are matched with the first inward push track bar and the second inward push track bar respectively, and the two exit push wheels are also matched with the first inward push track bar and the second inward push track bar respectively.

[0015] Preferably, the first inward-pushing track bar and the second inward-pushing track bar are both fixedly connected to a middle vertical support frame, and the two middle vertical supports are both fixedly connected to the main frame.

[0016] Compared with the prior art, the present invention provides a fiber spiral anchor thread finishing machine, which has the following beneficial effects: (1) In the present invention, the design of the alternately switching clamping components can be used to match the fiber spiral anchor rod to form corresponding clamping and conveying operations. During the trimming process, the untrimmed part and the trimmed part of the fiber spiral anchor rod can be synchronously clamped. The clamping and positioning effect of the fiber spiral anchor rod is better, and the thread trimming accuracy of the fiber spiral anchor rod is higher.

[0017] (2) In the present invention, the design of the inner supporting loading structure can realize the lifting and loading of the fiber spiral anchor relative to the alternating switching clamping assembly, the degree of automation is improved, and the continuous trimming operation of the fiber spiral anchor can be realized, with high operating efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present invention; Figure 2 For the present invention Figure 1 Schematic diagram of the local enlarged structure at A in the middle; Figure 3 This is a schematic diagram of the three-jaw chuck, the main frame, the first variable frequency motor, etc. of the present invention; Figure 4 It is a partial cross-sectional structural diagram of the cooperation of the lifting frame, the electric drive rod and the external threaded cylinder of the present invention; Figure 5 For the present invention Figure 4 Schematic diagram of the local enlarged structure at B in the middle; Figure 6 It is a schematic diagram of a partially exploded three-dimensional structure of the lifting frame, the lifting bracket and the sliding column of the present invention; Figure 7 For the present invention Figure 6 Schematic diagram of the local enlarged structure at C in the middle; Figure 8 It is a schematic diagram of the overall three-dimensional structure of the present invention when viewed from above; Figure 9 For the present invention Figure 8 Schematic diagram of the local enlarged structure at D in the middle; Figure 10 A schematic diagram of the three-dimensional structure of the present invention as a whole viewed from another angle; Figure 11 It is a partially cutaway bottom-view three-dimensional structural diagram of the cooperation of the second rotating frame, the lifting frame and the lifting bracket of the present invention; Figure 12 This is a schematic diagram of the three-dimensional structure of the external threaded cylinder, sliding column and connecting spring of the present invention; Figure 13 It is a schematic diagram of the three-dimensional structure of the lifting bracket, the supporting groove block and the vertical limiting plate of the present invention; Figure 14 It is a schematic diagram of the three-dimensional structure of the lifting frame of the present invention falling relatively within the main frame.

[0019] In the figure: 1. Three-jaw chuck; 2. Main frame; 3. First variable frequency motor; 4. Conveyor belt installation; 5. First centering clamping frame; 6. Second centering clamping frame; 7. First inward push rail; 8. Second inward push rail; 9. First fixed bracket; 10. Second fixed bracket; 11. First rotating bracket; 12. Second rotating bracket; 13. Lifting bracket; 14. Lifting bracket; 15. Tension spring; 16. Electric drive rod; 17. Externally threaded cylinder; 18. Sliding column; 19 , connecting spring; 20, guide hole cavity; 21, internal threaded sleeve; 22, traction rope; 23, limiting ring; 24, end frame; 25, rope hole; 26, extension reinforcement rod; 27, upward limit tilt rod; 28, top support groove block; 29, vertical limit plate; 30, driving support roller; 31, driven support roller; 32, second frequency conversion motor; 33, track cross bar; 34, phase separation spring; 35, cutting into the push wheel; 36, exiting the push wheel; 37, end connecting block; 38, middle support vertical frame. DETAILED DESCRIPTION

[0020] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] For examples, see Figures 1-14, a fiber spiral anchor thread finishing machine includes a three-jaw chuck 1, the three-jaw chuck 1 is provided with a tooth plate, a main frame 2 and an alternating switching clamping assembly, the three-jaw chuck 1 is rotatably connected to the main frame 2, and the main frame 2 is equipped with a first variable frequency motor 3, the first variable frequency motor 3 is used to drive the rotation of the three-jaw chuck 1, the alternating switching clamping assembly includes an installation conveyor belt 4, the installation conveyor belt 4 is installed on the main frame 2, the main frame 2 is rotatably connected with a driving support roller 30 and a driven support roller 31, the driving support roller 30 and the driven support roller 31 are both connected to the installation conveyor belt 4, a second variable frequency motor 32 is installed on the main frame 2, the second variable frequency motor 32 is used to drive the rotation of the support roller 30, and when the second variable frequency motor 32 is powered on, it can The driving roller 30 is driven to rotate, and then the conveyor belt 4 is driven to move, thereby realizing the synchronous movement of the multiple first centering clamping frames 5 and the synchronous movement of the multiple second centering clamping frames 6. The conveyor belt 4 is installed with multiple first centering clamping frames 5 and multiple second centering clamping frames 6. The conveyor belt 4 is fixedly connected to the outside with multiple track cross bars 33. The multiple first centering clamping frames 5 are respectively slidably connected to the multiple track cross bars 33. The multiple second centering clamping frames 6 are also respectively slidably connected to the multiple track cross bars 33. The multiple first centering clamping frames 5 and the multiple second centering clamping frames 6 are all fixedly connected with phase-separating springs 34. Both ends of the multiple track cross bars 33 are fixedly connected with end connecting blocks 37. The multiple end connecting blocks 37 are respectively fixedly connected with the multiple phase-separating springs 34. The body frame 2 is fixedly connected with a first inner push track bar 7 and a second inner push track bar 8. The first inner push track bar 7 is matched with a plurality of first centering clamping frames 5, and the second inner push track bar 8 is matched with a plurality of second centering clamping frames 6. Through the design of alternating switching clamping components, the fiber spiral anchor rod can be matched to form corresponding clamping and conveying operations. During the trimming process, the untrimmed part and the trimmed part of the fiber spiral anchor rod can be synchronously clamped. The clamping and positioning effect of the fiber spiral anchor rod is good, and the thread trimming accuracy of the fiber spiral anchor rod is high. The first centering clamping frame 5 and the second centering clamping frame 6 are both rotatably connected with an entry push wheel 35 and an exit push wheel 36. The two entry push wheels 35 are respectively connected with the first inner push track bar 7 and the second inner push track bar 6. 8 matches, and the two exit pushing wheels 36 also match the first inward pushing track bar 7 and the second inward pushing track bar 8 respectively. When the first pair of clamping frames 5 forms a mutual pushing effect with respect to the first inward pushing track bar 7, the cutting pushing wheel 35 in the first pair of clamping frames 5 will contact with the first inward pushing track bar 7, and use rolling friction instead of sliding friction to make the movement resistance of the first pair of clamping frames 5 smaller, and can also reduce the friction loss between the first pair of clamping frames 5 and the first inward pushing track bar 7. When the second pair of clamping frames 6 forms a mutual pushing effect with respect to the second inward pushing track bar 8, the cutting pushing wheel 35 in the second pair of clamping frames 6 will contact with the second inward pushing track bar 8, and use rolling friction instead of sliding friction to make the movement resistance of the second pair of clamping frames 6 smaller.It can also reduce the friction loss between the second centering clamping frame 6 and the second inward pushing track bar 8. The setting of the exit pushing wheel 36 is used to replace the rolling friction when the first centering clamping frame 5 contacts and separates with the first inward pushing track bar 7, and also to replace the rolling friction when the second centering clamping frame 6 contacts and separates with the second inward pushing track bar 8.

[0022] It should be further explained that an internal support loading structure is installed in the main frame 2, and the internal support loading structure includes a first fixed bracket 9 and a second fixed bracket 10, and the first fixed bracket 9 and the second fixed bracket 10 are both fixedly connected to the main frame 2, and the first fixed bracket 9 and the second fixed bracket 10 are both fixedly connected to an extension reinforcement rod 26, and the two extension reinforcement rods 26 are both fixedly connected to the main frame 2, and the first fixed bracket 9 and the second fixed bracket 10 are both fixedly connected to an upward limit tilting rod 27. When the fiber spiral anchor rod is placed on the lifting platform formed by the first fixed bracket 9 and the second fixed bracket 10, the upward limit tilting rod 27 can form an upward limit for the fiber spiral anchor rod, thereby reducing the fiber spiral anchor rod between the first fixed bracket 9 and the second fixed bracket. The top of 10 slides out, which improves the safety factor of use. The first fixed bracket 9 and the second fixed bracket 10 are both rotatably connected to the first rotating bracket 11 and the second rotating bracket 12. A lifting frame 13 is rotatably connected between the two first rotating brackets 11. A second rotating bracket 12 located on the front side is rotatably connected to the lifting frame 13. A lifting bracket 14 is slidably connected inside the lifting frame 13. Two top supporting groove blocks 28 are provided at the top of the lifting bracket 14. The two top supporting groove blocks 28 are respectively fixedly connected to a vertical limiting plate 29 at one end away from the two upward-flipping limit rods 27. The matching fiber spiral anchor rods form an auxiliary positioning and limiting effect. A plurality of tension springs 15 are connected between the lifting bracket 14 and the lifting frame 13. The rear end of the second rotating bracket 12 located on the rear side is equipped with an electric The driving rod 16 is driven, and a linkage structure is installed in the lifting frame 13. The linkage structure is driven by the electric driving rod 16. The linkage structure can realize the rotation control between a second rotating frame 12 located at the rear side and the lifting frame 13. The linkage structure can also realize the height control of the lifting bracket 14 relative to the lifting frame 13. Through the design of the internal supporting loading structure, the fiber spiral anchor rod can be lifted and loaded relative to the alternating switching clamping assembly, the degree of automation is improved, and the continuous trimming operation of the fiber spiral anchor rod can be realized, and the operation efficiency is high. The linkage structure includes an external threaded barrel 17, and a sliding column 18 is slidably connected in the external threaded barrel 17. The sliding column 18 is connected to the driving rod of the electric driving rod 16. A connecting spring 19 is fixedly connected between the external threaded barrel 17 and the sliding column 18. A limit ring 23 is fixedly connected to the moving column 18, and the limit ring 23 is fixedly connected to the connecting spring 19. The sliding column 18 is slidably connected to a second rotating frame 12 located at the rear side. A guide hole 20 is provided in the lifting frame 13, and an internal threaded sleeve 21 is fixedly connected in the guide hole 20. The internal threaded sleeve 21 is threadedly connected to the external threaded cylinder 17. The sliding column 18 is fixedly connected to a traction rope 22. The sliding column 18 is rotatably connected to the end frame 24, and the end frame 24 is slidably connected in the guide hole 20. The traction rope 22 is fixedly connected to the end frame 24, and the traction rope 22 is fixedly connected to the lifting bracket 14. The lifting and lowering operations of the lifting frame 13 can be realized by an electric drive rod 16, and the lifting and lowering operations of the lifting bracket 14 relative to the lifting frame 13 can also be realized.More practical, the bottom end of the lifting frame 13 is provided with a rope hole 25, which is connected to the guide hole 20 and is used to pass the traction rope 22. The first and second inward pushing rails 7 and 8 are both fixedly connected to the middle support frame 38, and the two middle support frames 38 are both fixedly connected to the main frame 2, thereby improving the structural strength of the first and second inward pushing rails 7 and 8.

[0023] The first variable frequency motor 3, electric drive rod 16, second variable frequency motor 32, three-jaw chuck 1 and tooth plate in this embodiment are all conventional equipment purchased on the market and well known to those skilled in the art. In the invention, we only use them and do not improve their structure and function. For those skilled in the art, their setting method, installation method and electrical connection method only need to be debugged according to the requirements of the instruction manual, and will not be described in detail here.

[0024] To sum up, the working principle of the fiber spiral anchor thread trimming machine is that when in use, the fiber spiral anchor thread trimming machine is first placed at the desired location, and a control circuit is installed for the first variable frequency motor 3, the electric drive rod 16 and the second variable frequency motor 32. If necessary, a controller and a computer host can be installed for the control circuit. The computer host is equipped with a control program. The control program combined with the controller can realize the coordinated operation control of the first variable frequency motor 3, the electric drive rod 16 and the second variable frequency motor 32. Synchronous pulleys are installed on the output shaft of the first variable frequency motor 3 and the main shaft of the three-jaw chuck 1. The two synchronous pulleys are connected by a synchronous belt transmission. Therefore, when the first variable frequency motor 3 is powered on, the rotation drive of the three-jaw chuck 1 can be realized. When the second pair of centering clamping frames 5 moves to the concave area of the first inward-pushing track bar 7, the first pair of centering clamping frames 5 will overcome the tension of the separation spring 34 to which they are connected and form a movement. When the second pair of centering clamping frames 6 moves to the concave area of the second inward-pushing track bar 8, the second pair of centering clamping frames 6 will overcome the tension of the separation spring 34 to which they are connected and form a movement. Therefore, under the cooperation of the first inward-pushing track bar 7 and the second inward-pushing track bar 8, the first pair of centering clamping frames 5 and the second pair of centering clamping frames 6 relative to each other can be realized. The relative approach movement of the left and right opposite first pair of centering clamping frames 5 and the second pair of centering clamping frames 6 can be realized. When the first pair of centering clamping frames 5 and the second pair of centering clamping frames 6 move to the first inner push track bar 7 and the outer expansion area of the first inner push track bar 7 respectively, the first pair of centering clamping frames 5 and the second pair of centering clamping frames 6 opposite to each other will move away from each other, so that the distance between the first pair of centering clamping frames 5 and the second pair of centering clamping frames 6 is appropriately expanded to ensure that the first pair of centering clamping frames 5 and the second pair of centering clamping frames 6 can smoothly pass through the area where the three-jaw chuck 1 is located. The electric drive rod 16 is operated to drive the sliding column 18. The movement of the sliding column 18 will form a forward and backward movement relative to a second rotating frame 12 located at the rear side. When the sliding column 18 is pushed forward, the forward movement of the external threaded barrel 17 can be pushed by the connecting spring 19. Since the external threaded barrel 17 and the internal threaded sleeve The relative threaded connection between 21, when the external threaded barrel 17 moves forward, it can form a spiral motion relative to the internal threaded sleeve 21, and under the auxiliary support of the two first rotating frames 11 and the second rotating frame 12 located at the front side on the lifting frame 13, the lifting frame 13 will form a relative movement and rise in the main frame 2. In this process, since the sliding column 18 forms a forward position movement relative to the lifting frame 13, it will also form an auxiliary pulling on the traction rope 22. Under the traction action of the traction rope 22, the lifting bracket 14 will be driven to rise relative to the lifting frame 13. In this process, the tension spring 15 will be further elastically stretched. After the external threaded barrel 17 moves to the limit position relative to the internal threaded sleeve 21, the sliding column 18 continues to push forward.No relative spiral motion is formed between the internally threaded sleeve 21 and the externally threaded barrel 17. During this process, the connecting spring 19 will be compressed to ensure that the sliding column 18 has adjustment space for further forward movement. This also allows the lifting bracket 14 to remain elevated relative to the lifting frame 13 after the lifting frame 13 is rotated and raised to its limit position, ensuring that the lifting position of the supporting groove block 28 can overlap in height with the clamping positions of the first centering clamping frame 5 and the second centering clamping frame 6.

[0025] Furthermore, in actual use, the plurality of fiber spiral anchors to be trimmed are first placed on the structure formed by the first rotating frame 11 and the second rotating frame 12, and then the sliding column 18 is controlled to move backward by the electric drive rod 16 to make the lifting frame 13 fall relatively in the main frame 2, and at the same time, the lifting bracket 14 is also caused to fall relatively in the lifting frame 13 until the lifting frame 13 and the lifting bracket 14 fall to the position shown in the attached figure. Figure 14 The approaching state shown in the attached Figure 14After the state shown, since the fiber spiral anchor rod will relatively roll and fall along the inclined first fixed bracket 9 and the second fixed bracket 10 under the action of gravity, when the lifting frame 13 is lowered in height, the falling fiber spiral anchor rod will move into the top supporting groove block 28 at the top of the lifting bracket 14, and then the electric drive rod 16 is used to control the sliding column 18 to move forward, so that the lifting frame 13 is moved up and the lifting bracket 14 is also relatively raised. Since the top groove of the top supporting groove block 28 only allows one fiber spiral anchor rod to enter, and the top supporting groove block 28 is provided with a vertical limit plate 29, it can prevent the fiber spiral anchor rod from falling due to excessive tilting movement. At the same time, the top supporting groove block 28 is provided with a side away from the vertical limit plate 29. The smooth shape can effectively avoid the top of the supporting groove block 28 supporting more than one fiber spiral anchor rod. When the fiber spiral anchor rod is lifted to the limit position by the lifting bracket 14, it will enter the clamping height of the first pair of clamping frames 5 and the second pair of clamping frames 6. The second frequency conversion motor 32 is powered on to realize the synchronous movement of multiple first pair of clamping frames 5 and multiple second pair of clamping frames 6. Under the pushing action of the first inner pushing track bar 7 and the second inner pushing track bar 8, when the first pair of clamping frames 5 and the second pair of clamping frames 6 are pushed relatively close to each other, the fiber spiral anchor rod in the supporting groove block 28 can be clamped accordingly. After that, the electric drive rod 16 works to control the lifting bracket 14 to form a relative height reduction to avoid the lifting bracket 14 from clamping multiple first pairs of The movement of the middle clamping frame 5 and the movement of the multiple second pairs of clamping frames 6 form interference, and also prepare for the lifting bracket 14 to lift the next fiber spiral anchor to form a position. In the process of following the movement of the installation conveyor belt 4, the first pair of clamping frames 5 and the second pair of clamping frames 6 will move and convey the clamped fiber spiral anchor relative to the tooth plate. By controlling the rotation speed of the first variable frequency motor 3 and the rotation speed of the second variable frequency motor 32, the coordinated control of the rotation speed of the tooth plate and the insertion speed of the fiber spiral anchor can be achieved to match the thread on the fiber spiral anchor to form a trim. Along with the movement of the multiple first pairs of clamping frames 5 and the multiple second pairs of clamping frames 6, the multiple first pairs of clamping frames 5 can match the fiber spiral anchor to form a sequential order from front to back. The first and second centering clamping frames 5 and 6 are clamped in sequence, and when the first and second centering clamping frames 5 and 6 move forward through the three-jaw chuck 1, the first and second centering clamping frames 5 and 6 that are opposite to each other will move away from each other to avoid interference with the three-jaw chuck 1. Before the first and second centering clamping frames 5 and 6 that move away from each other move away, the first and second centering clamping frames 5 and 6 that are adjacent to each other on their rear sides will clamp the fiber spiral anchor rod, and after moving through the three-jaw chuck 1, the first and second centering clamping frames 5 and 6 will approach each other again to form a clamping position on the part of the fiber spiral anchor rod that has been trimmed by the tooth plate, thereby improving the stability of the fiber spiral anchor rod's posture relative to the tooth plate and improving the trimming quality of the fiber spiral anchor rod.When the first pair of centering clamping frames 5 moves out of the first inward pushing track bar 7, and the second pair of centering clamping frames 6 adjacent to the right side also moves out of the second inward pushing track bar 8, the clamping effect of the first pair of centering clamping frames 5 and the second pair of centering clamping frames 6 on the high-fiber spiral anchor rod becomes invalid. When the clamping effects of the multiple first pairs of centering clamping frames 5 and the multiple second pairs of centering clamping frames 6 that clamp the high-fiber spiral anchor rod all become invalid, the high-fiber spiral anchor will be unloaded after the trimming is completed, that is, the trimming process of the high-fiber spiral anchor is completed.

[0026] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A fiber screw anchor thread finishing machine, comprising a three-jaw chuck (1), wherein the three-jaw chuck (1) is provided with a tooth plate, characterized in that: The invention also includes a main frame (2) and an alternating switching clamping assembly, wherein the three-jaw chuck (1) is rotatably connected to the main frame (2), and a first variable frequency motor (3) is installed on the main frame (2), and the first variable frequency motor (3) is used for rotating the three-jaw chuck (1); the alternating switching clamping assembly includes a mounting conveyor belt (4), the mounting conveyor belt (4) is installed on the main frame (2), and a plurality of first centering clamping frames (5) and a plurality of second centering clamping frames (6) are installed on the mounting conveyor belt (4); a first inner pushing track bar (7) and a second inner pushing track bar (8) are fixedly connected to the main frame (2), the first inner pushing track bar (7) is matched with the plurality of the first centering clamping frames (5), and the second inner pushing track bar (8) is matched with the plurality of the second centering clamping frames (6); an inner supporting feeding structure is installed in the main frame (2).

2. A fiber spiral anchor thread finishing machine according to claim 1, characterized in that: The inner supporting loading structure comprises a first fixed bracket (9) and a second fixed bracket (10), the first fixed bracket (9) and the second fixed bracket (10) are both fixedly connected in the main frame (2), the first fixed bracket (9) and the second fixed bracket (10) are both rotatably connected to a first rotating frame (11) and a second rotating frame (12), a lifting frame (13) is rotatably connected between the two first rotating frames (11), a second rotating frame (12) located at the front side is rotatably connected to the lifting frame (13), and the lifting frame (13) slides in the lifting frame A lifting bracket (14) is connected, and a plurality of tension springs (15) are connected between the lifting bracket (14) and the lifting frame (13). An electric drive rod (16) is installed at the rear end of a second rotating frame (12) located at the rear side, and a linkage structure is installed in the lifting frame (13). The linkage structure is driven by the electric drive rod (16). The linkage structure can realize the rotation control between the second rotating frame (12) located at the rear side and the lifting frame (13), and the linkage structure can also realize the height control of the lifting bracket (14) relative to the lifting frame (13).

3. A fiber screw anchor thread finishing machine according to claim 2, characterized in that: The linkage structure includes an external threaded cylinder (17), a sliding column (18) is slidably connected in the external threaded cylinder (17), the sliding column (18) is connected to the drive rod of the electric drive rod (16), a connecting spring (19) is fixedly connected between the external threaded cylinder (17) and the sliding column (18), the sliding column (18) is slidably connected to a second rotating frame (12) located at the rear side, a guide cavity (20) is opened in the lifting frame (13), an internal threaded sleeve (21) is fixedly connected in the guide cavity (20), the internal threaded sleeve (21) is threadedly connected to the external threaded cylinder (17), the sliding column (18) is fixedly connected to a traction rope (22), and the traction rope (22) is fixedly connected to the lifting bracket (14).

4. A fiber screw anchor thread finishing machine according to claim 3, characterized in that: A limiting ring (23) is fixedly connected to the sliding column (18), and the limiting ring (23) is fixedly connected to the connecting spring (19). The sliding column (18) is rotatably connected to an end frame (24), and the end frame (24) is slidably connected in the guide hole cavity (20). The traction rope (22) is fixedly connected to the end frame (24). A rope hole (25) is provided at the bottom end of the lifting frame (13), and the rope hole (25) is communicated with the guide hole cavity (20). The rope hole (25) is used for the traction rope (22) to pass through.

5. A fiber screw anchor thread finishing machine according to claim 4, characterized in that: The first fixed bracket (9) and the second fixed bracket (10) are both fixedly connected to an extension reinforcement rod (26), and the two extension reinforcement rods (26) are both fixedly connected to the main frame (2). The first fixed bracket (9) and the second fixed bracket (10) are both fixedly connected to an upward-flipping limit tilting rod (27).

6. A fiber screw anchor thread finishing machine according to claim 5, characterized in that: Two supporting groove blocks (28) are provided at the top end of the lifting bracket (14), and one end of each of the two supporting groove blocks (28) away from the two upward-flipping limiting tilting rods (27) is fixedly connected to a vertical limiting plate (29).

7. A fiber screw anchor thread finishing machine according to claim 6, characterized in that: A driving roller (30) and a driven roller (31) are rotatably connected to the main frame (2), and both the driving roller (30) and the driven roller (31) are transmission-connected to the mounting conveyor belt (4). A second variable frequency motor (32) is mounted on the main frame (2), and the second variable frequency motor (32) is used to rotationally drive the driving roller (30).

8. A fiber screw anchor thread finishing machine according to claim 7, characterized in that: The installation conveyor belt (4) is fixedly connected to a plurality of track cross bars (33) on the outside, a plurality of the first centering clamping frames (5) are respectively slidably connected to the plurality of track cross bars (33), and a plurality of the second centering clamping frames (6) are also respectively slidably connected to the plurality of track cross bars (33). The plurality of first centering clamping frames (5) and the plurality of second centering clamping frames (6) are both fixedly connected to separation springs (34), and both ends of the plurality of track cross bars (33) are fixedly connected to end connection blocks (37), and the plurality of end connection blocks (37) are respectively fixedly connected to the plurality of separation springs (34).

9. A fiber screw anchor thread finishing machine according to claim 8, characterized in that: The first centering clamping frame (5) and the second centering clamping frame (6) are both rotatably connected with an entry push wheel (35) and an exit push wheel (36), the two entry push wheels (35) are matched with the first inward push track bar (7) and the second inward push track bar (8) respectively, and the two exit push wheels (36) are also matched with the first inward push track bar (7) and the second inward push track bar (8) respectively.

10. A fiber screw anchor thread finishing machine according to claim 9, characterized in that: The first inward-pushing track bar (7) and the second inward-pushing track bar (8) are both fixedly connected to a middle vertical support frame (38), and the two middle vertical support frames (38) are both fixedly connected to the main frame (2).

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