A flat cutting device for spare ends of automobile braided pipes

Abstract

The present invention complies with the technical field of cutting devices, and mainly mentions a device for leveling the spare port of a braided tube for automobiles. It includes: a processing platform; a column, fixedly connected to the processing platform, and the column is fixedly connected to a push rod; a sleeve, fixedly connected to the telescopic end of the push rod, a support rod is slidably connected in the sleeve, and the bottom end of the support rod is fixedly connected to a fixed seat; a knife holder, slidably connected to the fixed seat, and a cutter is fixedly connected to the knife holder; a support platform, fixedly connected to the processing platform, and a round hole is provided on the top of the support platform; a first limiting component, which is provided on the outside of the sleeve, and the cutting resistance of the cutter to the braided tube is utilized to release the limiting of the support rod by the first limiting component. In the present invention, after the blade of the cutter becomes blunt, the first limiting component releases the limiting between the sleeve and the support rod, and ends the cutting work of the cutter on the braided tube, thereby avoiding the unevenness of the cut end of the braided tube caused by the blunt blade of the cutter.

Description

Technical Field

[0001] The invention discloses the technical field of cutting devices, and mainly points out a device for leveling and cutting spare ports of automobile braided pipes. Background Art

[0002] Automobile braided hose is a flexible pipe composed of an inner layer, a braided layer and an outer layer. The inner layer is usually made of rubber or plastic, the braided layer is woven from high-strength materials such as stainless steel wire, and the outer layer provides protection. It is widely used in automobile braking, cooling, fuel, air conditioning and exhaust systems. It has excellent flexibility and pressure resistance to ensure the reliability and safety of the system.

[0003] During the production of automobile braided tubes, in order to adapt to different installation lengths, complex installation paths and other issues, the automobile braided tubes need to be cut. However, when the existing device cuts the braided tube, the cutting knife cuts the braided tube at a single position, causing the tool to become blunt, resulting in uneven cut end surfaces of the braided tubes and hair frying, which affects the subsequent assembly or fitting of the automobile braided tubes and can easily cause a large number of braided tubes to become defective. Summary of the invention

[0004] In order to overcome the shortcomings of the existing automobile braided tube cutting device, the present invention provides a flat cutting device for spare ports of automobile braided tubes.

[0005] The technical solution of the present invention is: a device for leveling and cutting spare ports of automobile braided tubes, comprising: a processing platform; a column fixedly connected to the processing platform, the column fixedly connected to a push rod; a sleeve fixedly connected to the telescopic end of the push rod, a support rod slidably connected in the sleeve, the bottom end of the support rod fixedly connected to a fixed seat, a first elastic member fixedly connected between the fixed seat and the sleeve; a knife holder slidably connected to the fixed seat, the knife holder fixedly connected to a cutter, the cutter being used to cut the braided tube; a support platform fixedly connected to the processing platform, a circular hole being provided on the top of the support platform for guiding the braided tube; a first limiting component provided on the outside of the sleeve, the first limiting component being used to limit the relative position of the sleeve and the support rod, and the cutting resistance of the cutter to the braided tube is utilized to release the limiting of the support rod by the first limiting component.

[0006] Furthermore, the knife holder is configured to be L-shaped, and the knife holder includes a transverse portion and a vertical portion, and the cutter is provided with grooves at equal intervals to increase the cutting area of ​​the cutter and the braided tube.

[0007] Furthermore, the central axis of the circular hole at the top of the support platform and the central axis of the cutting knife groove are located on the same plane, and the support platform is in contact with one side of the cutting knife.

[0008] Furthermore, the first limiting assembly includes: a support, fixedly connected to one side of the sleeve, the support is slidably connected to the limiting rod, the limiting rod is slidably connected to the sleeve, a limiting blind hole is arranged on the side of the support rod close to the limiting rod, one end of the limiting rod is limitedly matched with the limiting blind hole, and the other end of the limiting rod is fixedly connected to a fixed block; a slide plate, slidably connected to the limiting rod, the limiting rod is fixedly connected to a fixing plate, a second elastic member is fixedly connected between the fixing plate and the slide plate, and the elastic force of the second elastic member is used to provide the limiting rod with an extrusion force on the limiting blind hole.

[0009] Furthermore, it also includes: a threaded rod, which is threadedly connected to the support, one end of the threaded rod is rotatably connected to the skateboard, and the other end of the threaded rod is fixedly connected to a rotating wheel, and the threaded rod is used to adjust the distance between the skateboard and the support.

[0010] Furthermore, it also includes: a tool pulling mechanism, which is arranged on the upper side of the processing platform and is used to pull the cutter in a single direction alternately to change the force position of the cutter; the tool pulling mechanism includes: a support box, which is fixedly connected to the processing platform, the support box is fixedly connected to a guide shell through a mounting seat, the guide shell is slidably connected to a sliding column, one end of the sliding column is limited and slidable with the vertical part of the tool holder through the mounting seat; a connecting column, which is slidably connected to the guide shell, the connecting column is fixedly connected to the sliding column, the length of the connecting column is greater than the width of the guide shell, and the guide shell is fixedly connected to a support frame;

[0011] The second limiting assembly is arranged on the supporting frame, and is used for alternately limiting and blocking the two parts of the connecting column so that the connecting column moves at intervals.

[0012] Furthermore, the second limiting assembly includes: a C-shaped plate, slidably connected to the support frame, first limiting columns and second limiting columns arranged at intervals are fixedly connected on opposite sides of the C-shaped plate, the first limiting columns and the second limiting columns are both used to limit the connecting column, and a third elastic member is fixedly connected between the support box and the mounting seat on the sliding column through a mounting seat; a first telescopic rod, fixedly connected to the support frame, a telescopic end of the first telescopic rod is fixedly connected to the C-shaped plate, a second telescopic rod is fixedly connected to one side of the support rod, a telescopic end of the second telescopic rod is fixedly connected to the support, an oil guide pipe is connected between the second telescopic rod and the first telescopic rod, and hydraulic oil is filled in the second telescopic rod.

[0013] Furthermore, the opposite ends of the first limiting pillar and the second limiting pillar are located at the same height, and the first limiting pillar and the second limiting pillar are staggered.

[0014] Furthermore, the distance between adjacent first limiting columns is equal to the distance between the central axes of the cutting grooves.

[0015] Furthermore, a notch is provided on one side of the cutter, and the width of the notch of the cutter is greater than the diameter of the braided tube, so as to enable the cutter to avoid the braided tube.

[0016] In summary, the beneficial effects of the present invention are as follows: 1. The present invention utilizes a first limiting component to limit the sleeve and the support rod. After the blade of the cutter becomes blunt, the first limiting component releases the limit between the sleeve and the support rod, and ends the cutting of the braided tube by the cutter, thereby avoiding the unevenness of the cut end of the braided tube caused by the blunt blade of the cutter, and improving the cutting effect of the braided tube.

[0017] 2. The present invention utilizes the elastic force of the second elastic member to provide the limit rod with a supporting force for the upper limit blind hole of the support rod. When the resistance of the cutter in cutting the braided tube is greater than the limiting force of the upper limit blind hole of the support rod and the limit rod, the downward pressure of the cutter on the braided tube is reduced to avoid cut marks on the outside of the braided tube.

[0018] 3. The present invention adjusts the distance between the slide plate and the fixed plate by rotating the threaded rod, thereby changing the elastic force of the second elastic member, thereby adapting to automobile braided tubes of different diameters.

[0019] 4. The present invention utilizes the alternating cooperation of the first limit column and the second limit column to make the blade of the cutter blunt, thereby changing the cutting position of the cutter on the braided tube, thereby ensuring that the cutter cuts the braided tube quickly and smoothly, improving the cutting effect and efficiency of the braided tube, and preventing the staff from failing to close the device in time, resulting in cut marks on the outside of the subsequent braided tube and turning it into a defective product. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0021] Figure 2 A rear-view stereoscopic structural schematic diagram of the present invention;

[0022] Figure 3 A schematic diagram of the three-dimensional structure of the tool holder and support platform and other parts of the present invention;

[0023] Figure 4 A schematic side view of the three-dimensional structure of the sleeve, support rod and other parts of the present invention;

[0024] Figure 5 A cross-sectional view of the sleeve and support rod of the present invention;

[0025] Figure 6 A schematic side view of the three-dimensional structure of the support, the limit rod and other parts of the present invention;

[0026] Figure 7 A schematic side view of the three-dimensional structure of the support box and the guide shell of the present invention;

[0027] Figure 8 A cross-sectional view of a guide housing according to the present invention.

[0028] In the figure: 1, processing platform, 2, column, 3, push rod, 4, sleeve, 5, support rod, 6, fixed seat, 7, first elastic member, 8, tool holder, 9, cutting knife, 10, support table, 11, support, 12, limit rod, 13, fixed block, 14, slide plate, 15, fixed plate, 16, second elastic member, 17, threaded rod, 18, support box, 19, guide shell, 20, sliding column, 21, connecting column, 22, support frame, 23, C-shaped plate, 24, first limit column, 25, second limit column, 251, third elastic member, 26, first telescopic rod, 27, second telescopic rod. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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 creative work are within the scope of protection of the present invention.

[0030] Embodiment 1: When cutting a braided tube, the cutting knife will become blunt after long-term use. After the cutting knife becomes blunt, the cut end of the braided tube will be uneven, causing flying hairs to appear on the cut end of the braided tube, which will affect the subsequent processing of the cut end. The above problem is solved by adopting the following embodiment.

[0031] A flat cutting device for spare ends of automobile braided pipes, such as Figure 1-Figure 4As shown, it includes: a processing platform 1; a column 2, which is fixed to the upper side of the processing platform 1, and the column 2 is fixed with a push rod 3 by bolts; a sleeve 4, which is fixed to the lower end of the telescopic end of the push rod 3, and a support rod 5 is slidably connected in the sleeve 4, and a fixed seat 6 is fixed to the bottom end of the support rod 5, and a first elastic member 7 is fixed between the fixed seat 6 and the sleeve 4, and the first elastic member 7 is set as a spring, and the first elastic member 7 is sleeved on the outside of the support rod 5; a knife holder 8, which is slidably connected to the fixed seat 6, and a cutter 9 is fixed to the knife holder 8, and the cutter 9 is used to cut the braided tube, and the knife holder 8 is set in an L shape, and the knife holder 8 includes a horizontal portion and a vertical portion, and the cutter 9 is provided with equal spacing. The groove is used to increase the cutting area of ​​the cutter 9 and the braided tube; the support platform 10 is fixedly connected to the upper side of the processing platform 1, and a circular hole is arranged on the top of the support platform 10. The support platform 10 is located below the support rod 5, and the support platform 10 is used to guide the braided tube; the central axis of the circular hole on the top of the support platform 10 and the central axis of the groove of the cutter 9 are located on the same plane, and the support platform 10 is in contact with one side of the cutter 9. The first limiting component is arranged on the outside of the sleeve 4. The first limiting component is used to limit the relative position of the sleeve 4 and the support rod 5, and the cutting resistance of the cutter 9 to the braided tube is used to release the limiting of the support rod 5 by the first limiting component.

[0032] In the above scheme, the main purpose is to solve the problem that the cutter 9 becomes blunt after long-term use, resulting in uneven cutting of the braided tube, and to improve the cutting effect of the braided tube. The processing platform 1 is welded from metal plates to provide a stable supporting force for the device. A control panel is embedded on the processing platform 1 for setting the working mode of the device. A braided tube driving structure is provided on the upper side of the processing platform 1 for conveying the braided tube to the right in equal length so that the cutting length of the braided tube is the same. The column 2 is set in an L shape to provide support for the push rod 3. The push rod 3 is gas-driven and has a faster response speed. The rear side of the support rod 5 is set as a plane, and the inner side of the sleeve 4 is provided with a plurality of support rods. The annular surface is completely fitted with the support rod 5 to prevent the support rod 5 and the sleeve 4 from rotating relative to each other. The fixed seat 6 is provided with a T-shaped groove, and the knife holder 8 is slidably connected to the T-shaped groove of the fixed seat 6. The cutter 9 is connected to the knife holder 8 by bolts, which is convenient for replacing the cutter 9 at a later time. The first limiting component is arranged on the rear side of the sleeve 4. The first limiting component is used to limit the relative position between the sleeve 4 and the support rod 5, and after the blade of the cutter 9 becomes blunt, the first limiting component releases the limit between the sleeve 4 and the support rod 5, and ends the cutting work of the cutter 9 on the braided tube, thereby avoiding the unevenness of the cut end of the braided tube caused by the blunt blade of the cutter 9.

[0033] Workflow: The staff sets the cutting length of the braided tube through the control panel, and then the staff presses the start button of the control panel. Driven by the braided tube driving structure, the braided tube is intermittently transported to the right, and the braided tube moves to the right along the support platform 10. At the same time, the telescopic end of the push rod 3 drives the sleeve 4 to move downward, and the sleeve 4 drives the support rod 5 to move downward synchronously through the first limit assembly. The support rod 5 drives the cutter 9 to move downward through the fixed seat 6 and the knife holder 8, and the cutter 9 moves downward along the right side of the support platform 10, thereby cutting the braided tube. Then the telescopic end of the push rod 3 is reset, and the cutter 9 moves upward, and then the above process is repeated to continue cutting the braided tube. When the blade of the cutter 9 becomes blunt, the first limiting component releases the limit on the support rod 5, so that after the cutter 9 contacts the braided tube, the cutter 9 stops moving downward, and the telescopic end of the push rod 3 continues to drive the sleeve 4 to move downward. Since the first limiting component releases the limit on the support rod 5, the sleeve 4 slides downward along the support rod 5 and squeezes the first elastic member 7 at the same time. At this time, the cutter 9 does not cut the braided tube, thereby avoiding the problem of unevenness on the subsequent cutting end surface of the braided tube. The staff promptly closes the device and replaces or repairs the cutter 9.

[0034] Embodiment 2: Based on embodiment 1, Figure 4-Figure 6 As shown, the first limiting component includes: a support 11, which is fixed to the rear side of the sleeve 4, the support 11 is slidably connected to the limiting rod 12, the limiting rod 12 is horizontally placed, the limiting rod 12 is slidably connected to the sleeve 4, and a limiting blind hole is arranged on the rear side of the support rod 5, the front end of the limiting rod 12 is limitedly matched with the limiting blind hole, and the rear end of the limiting rod 12 is fixedly connected to a fixing block 13; a slide plate 14, which is slidably connected to the limiting rod 12, the limiting rod 12 is fixedly connected to a fixing plate 15, and a second elastic member 16 is fixedly connected between the fixing plate 15 and the slide plate 14, the second elastic member 16 is set as a spring, and the second elastic member 16 is sleeved on the outer side of the fixing plate 15, and the elastic force of the second elastic member 16 is used to provide the limiting rod 12 with an extrusion force on the limiting blind hole.

[0035] like Figure 6 As shown, it also includes: a threaded rod 17, which is threadedly connected to the support 11, the front end of the threaded rod 17 is rotatably connected to the slide plate 14, the rear end of the threaded rod 17 is fixedly connected to a rotating wheel, and the threaded rod 17 is used to adjust the distance between the slide plate 14 and the support 11.

[0036] In the above scheme, the main purpose is to utilize the limiting force of the limiting rod 12 and the upper limit blind hole of the support rod 5 to detect the cutting resistance of the cutter 9 and the braided tube, thereby reducing the problem of uneven end surface of the subsequent braided tube cutting. The support 11 is set to be L-shaped, and the support 11 is located on the rear side of the sleeve 4. The front section of the limiting rod 12 is set to a ball head, and the limiting rod 12 is set to a hard metal rod. The elastic force of the second elastic member 16 is utilized to provide the limiting rod 12 with support force for the upper limit blind hole of the support rod 5. When the diameter of the braided tube becomes larger, the cutting area will increase, and the resistance of the cutter 9 to cutting the braided tube will increase. The staff rotates the threaded rod 17 to adjust the distance between the slide plate 14 and the fixed plate 15 to change the elastic force of the second elastic member 16.

[0037] Working process: when the resistance of the cutter 9 in cutting the braided tube is greater than the limiting force of the upper limit blind hole on the support rod 5 and the limiting rod 12, the limiting blind hole of the support rod 5 squeezes the ball head of the limiting rod 12, and the limiting rod 12 moves backward along the sleeve 4, and the limiting rod 12 drives the fixing plate 15 to squeeze the second elastic member 16 backward, thereby realizing that the limiting rod 12 is moved out of the limiting blind hole of the support rod 5. When the sleeve 4 moves downward along the support rod 5, the ball head of the limiting rod 12 will slide along the rear plane of the support rod 5 until the sleeve 4 moves upward and resets. Under the elastic force of the second elastic member 16, the limiting rod 12 cooperates with the limiting blind hole of the support rod 5 again, and the staff closes the device through the control panel in time.

[0038] Embodiment 3: Based on embodiment 2, Figure 2 , Figure 7 and Figure 8 As shown, it also includes: a tool traction mechanism, which is arranged on the upper side of the processing platform 1, and is used to alternately pull the cutter 9 in a single direction to change the force position of the cutter 9; the tool traction mechanism includes: a support box 18, which is fixedly connected to the rear part of the upper side of the processing platform 1, and the support box 18 is fixedly connected to a guide shell 19 through a mounting seat, and the guide shell 19 is slidably connected with a sliding column 20, and the front end of the sliding column 20 is limited and slidable with the vertical part of the tool holder 8 through the mounting seat; a connecting column 21, which is slidably connected to the guide shell 19, and the connecting column 21 is fixedly connected to the sliding column 20, and the length of the connecting column 21 is greater than the width of the guide shell 19, and a support frame 22 is fixed to the guide shell 19; a second limiting component, which is arranged on the support frame 22, and the second limiting component is used to alternately limit and block the two parts of the connecting column 21, so that the connecting column 21 moves at intervals.

[0039] like Figure 8As shown, the second limiting assembly includes: a C-shaped plate 23, which is slidably connected to the support frame 22, and the opposite sides of the C-shaped plate 23 are respectively fixed with three first limiting columns 24 arranged at intervals and two second limiting columns 25 arranged at intervals, and the distance between adjacent first limiting columns 24 is equal to the distance between the central axes of the grooves of the cutter 9. When the cutter 9 moves downward, the grooves of the cutter 9 correct the position of the braided tube to ensure the cutting flatness of the braided tube by the cutter 9. The first limiting column 24 and the second limiting column 25 are both used to limit the connecting column 21, and the opposite ends of the first limiting column 24 and the second limiting column 25 are located at the same height, and the first limiting column 24 and the second limiting column 25 are staggered. When the C-shaped plate 23 moves, the first limiting column 24 and the second The limiting columns first move downward synchronously, and then move upward synchronously, thereby realizing alternating limiting of the two ends of the connecting column 21. The support box 18 is fixedly connected with a third elastic member 251 between the mounting seat and the mounting seat on the sliding column 20, and the third elastic member 251 is set as a tension spring; the first telescopic rod 26 is fixedly connected to the support frame 22, and the telescopic end of the first telescopic rod 26 is fixedly connected to the C-shaped plate 23. The rear side of the support rod 5 is fixedly connected to the second telescopic rod 27, and the telescopic end of the second telescopic rod 27 is fixedly connected to the support 11. An oil guide pipe is connected between the second telescopic rod 27 and the first telescopic rod 26, and hydraulic oil is filled in the second telescopic rod 27. A notch is set on one side of the cutter 9, and the notch width of the cutter 9 is greater than the diameter of the braided tube, which is used to make the cutter 9 avoid the braided tube.

[0040] In the above scheme, the main purpose is to change the cutting position of the cutter 9 on the braided tube after the blade of the cutter 9 becomes blunt, so as to improve the cutting effect and efficiency of the braided tube, and at the same time avoid the staff from failing to close the device in time, resulting in cut marks on the outside of the subsequent braided tube and turning it into a defective product. The support box 18 is a metal empty shell, and its main purpose is to provide effective and stable supporting force for the structure thereon. The sliding column 20 and the guide shell 19 are in a parallel state. Initially, the first limit column 24 on the rear side is limitedly matched with the right part of the connecting column 21, and the third elastic member 251 is in a stretched state. The first limit column 24 and the second limit column 25 are both metal columns and do not deform under force.

[0041] Working process: When the cutter 9 cuts the braided tube, the cutter holder 8 slides vertically along the mounting seat of the sliding column 20. After the blade of the cutter 9 becomes blunt, the sleeve 4 slides downward along the support rod 5, and the support 11 drives the telescopic end of the second telescopic rod 27 to move downward, so that the hydraulic oil inside it flows into the first telescopic rod 26 through the oil guide pipe. After the hydraulic oil in the first telescopic rod 26 increases, the telescopic end of the first telescopic rod 26 extends outward, and the telescopic end of the first telescopic rod 26 drives the C-shaped plate 23 downward along the support frame 22. The C-shaped plate 23 drives the three first limiting posts 24 and the two second limiting posts 25 to move downward synchronously. The first limiting post 24 on the rear side moves downward and gradually loses its limit with the right part of the connecting post 21. When the first limiting post 24 on the rear side completely loses its limit with the right part of the connecting post 21, the knife holder 8 pulls the sliding post 20 to the front side under the elastic force of the third elastic member 251, and the knife holder 8 drives the cutter 9 to slide forward until the left part of the connecting post 21 contacts the second limiting post 25 on the rear side. During the above process, the C-shaped plate 23 is in a downward moving state. When the sleeve 4 moves upward along the support rod 5 and resets, the telescopic end of the second telescopic rod 27 is reset, and the hydraulic oil in the first telescopic rod 26 flows back into the second telescopic rod 27. The telescopic end of the first telescopic rod 26 is reset, so that the C-shaped plate 23 moves upward along the support frame 22, and the second limiting column 25 on the rear side begins to move upward and gradually loses contact with the left part of the connecting column 21. When the second limiting column 25 on the rear side is completely separated from the left part of the connecting column 21, at this time, under the pulling force of the third elastic member 251, the sliding column 20 drives the connecting column 21 to move forward along the guide shell 19, so that the right part of the connecting column 21 contacts the first limiting column 24 in the middle position again until the C-shaped plate 23 is reset to the initial position. In the above process, the tool holder 8 drives the cutter 9 to move forward by a displacement equal to the spacing between the two first limiting columns 24, thereby changing the position of the cutter 9 cutting the braided tube, avoiding the blunting of the blade of the cutter 9 and causing the subsequent braided tube cutting end to be uneven.

[0042] After long-term use, the connecting column 21 is limited by the first limiting column 24 on the front side. At this time, the rear part of the cutter 9 is cutting the braided tube. When the rear blade of the cutter 9 becomes blunt, the connecting column 21 and the first limiting column 24 on the front side lose their limiting position. Under the action of the third elastic member 251 tension spring, the knife holder 8 drives the cutter 9 to move forward again until the notch of the cutter 9 is located on the lower side of the fixed seat 6. At this time, the connecting column 21 and the front part of the guide shell 19 are limited. At this time, the third elastic member 251 is still in a stretched state. If the staff does not close the device in time, the cutter 9 will not cut the braided tube at this time, thereby avoiding subsequent cuts on the braided tube; the staff closes the device and replaces the cutter 9, then moves the knife holder 8 and the sliding column 20 to reset, then adjusts the position of the braided tube, and then restarts the device to continue cutting the braided tube.

[0043] The above description is only an example of the present invention and is not intended to limit the present invention. Any equivalent substitutions made within the principles of the present invention should be included in the protection scope of the present invention. The contents not elaborated in detail in the present invention belong to the existing technologies known to those skilled in the art.

Claims

1. A device for flattening and cutting spare ports of automobile braided pipes, characterized in that: Included are: Processing platform (1); A column (2) is fixedly connected to the processing platform (1), and a push rod (3) is fixedly connected to the column (2); A sleeve (4) is fixedly connected to the telescopic end of the push rod (3); a support rod (5) is slidably connected inside the sleeve (4); a fixing seat (6) is fixedly connected to the bottom end of the support rod (5); and a first elastic member (7) is fixedly connected between the fixing seat (6) and the sleeve (4); A knife holder (8) is slidably connected to the fixing seat (6), the knife holder (8) being fixedly connected with a cutter (9), the cutter (9) being used to cut the braided tube; A support platform (10) is fixedly connected to the processing platform (1), and a circular hole is provided on the top of the support platform (10) for guiding the braided tube; A first limiting assembly is arranged on the outside of the sleeve (4), the first limiting assembly is used to limit the relative position of the sleeve (4) and the support rod (5), and the first limiting assembly releases the limiting of the support rod (5) by utilizing the cutting resistance of the cutter (9) to the braided tube; The first limiting component includes: A support (11) is fixedly connected to one side of the sleeve (4); the support (11) is slidably connected to a limit rod (12); the limit rod (12) is slidably connected to the sleeve (4); a limit blind hole is provided on a side of the support rod (5) close to the limit rod (12); one end of the limit rod (12) is limitedly matched with the limit blind hole; and the other end of the limit rod (12) is fixedly connected to a fixing block (13); A slide plate (14) is slidably connected to the limiting rod (12); the limiting rod (12) is fixedly connected to a fixing plate (15); a second elastic member (16) is fixedly connected between the fixing plate (15) and the slide plate (14); and the elastic force of the second elastic member (16) is used to provide the limiting rod (12) with a squeezing force on the limiting blind hole.

2. The device for flattening and cutting spare ports of automobile braided tubes according to claim 1 is characterized in that: The knife holder (8) is arranged in an L shape, the knife holder (8) comprises a transverse portion and a vertical portion, and the cutter (9) is provided with grooves at equal intervals, so as to increase the cutting area of ​​the cutter (9) and the braided tube.

3. The device for flattening and cutting spare ports of automobile braided tubes according to claim 2 is characterized in that: The central axis of the circular hole on the top of the support platform (10) and the central axis of the groove of the cutting knife (9) are located on the same plane, and the support platform (10) is in contact with one side of the cutting knife (9).

4. The device for flattening and cutting spare ends of a braided tube for automobiles according to claim 3 is characterized in that: Also included are: A threaded rod (17) is threadedly connected to the support (11); one end of the threaded rod (17) is rotatably connected to the slide plate (14); the other end of the threaded rod (17) is fixedly connected to a rotating wheel; and the threaded rod (17) is used to adjust the distance between the slide plate (14) and the support (11).

5. The device for flattening and cutting spare ends of automobile braided tubes according to claim 4 is characterized in that: Also included are: A tool pulling mechanism is arranged on the upper side of the processing platform (1) and is used to pull the cutter (9) in a single direction alternately to change the force-bearing position of the cutter (9); The tool traction mechanism comprises: A support box (18) is fixedly connected to the processing platform (1); the support box (18) is fixedly connected to a guide shell (19) via a mounting seat; a sliding column (20) is slidably connected through the guide shell (19); one end of the sliding column (20) is limitedly slidable with the vertical portion of the tool holder (8) via the mounting seat; A connecting column (21) is slidably connected to the guide shell (19), the connecting column (21) is fixedly connected to the sliding column (20), the length of the connecting column (21) is greater than the width of the guide shell (19), and a support frame (22) is fixedly connected to the guide shell (19); A second limiting component is arranged on the support frame (22), and is used to alternately limit and block the two parts of the connecting column (21) so that the connecting column (21) moves in intervals.

6. The device for flattening and cutting spare ends of automobile braided tubes according to claim 5, characterized in that: The second limiting component includes: A C-shaped plate (23) is slidably connected to the support frame (22); first limiting columns (24) and second limiting columns (25) arranged at intervals are fixedly connected on opposite sides of the C-shaped plate (23); the first limiting columns (24) and the second limiting columns (25) are both used to limit the connection column (21); and a third elastic member (251) is fixedly connected between the support box (18) and the mounting seat on the sliding column (20) via a mounting seat; A first telescopic rod (26) is fixedly connected to the support frame (22), a telescopic end of the first telescopic rod (26) is fixedly connected to the C-shaped plate (23), a second telescopic rod (27) is fixedly connected to one side of the support rod (5), a telescopic end of the second telescopic rod (27) is fixedly connected to the support seat (11), an oil guide pipe is connected between the second telescopic rod (27) and the first telescopic rod (26), and hydraulic oil is filled in the second telescopic rod (27).

7. The device for flattening and cutting spare ends of automobile braided tubes according to claim 6, characterized in that: The opposite ends of the first limiting pillar (24) and the second limiting pillar (25) are located at the same height, and the first limiting pillar (24) and the second limiting pillar (25) are staggered.

8. The device for flattening and cutting spare ends of a braided tube for automobiles according to claim 7, characterized in that: The distance between adjacent first limiting columns (24) is equal to the distance between the central axes of the grooves of the cutting blade (9).

9. The device for flattening and cutting spare ends of automobile braided tubes according to claim 8, characterized in that: A notch is provided on one side of the cutter (9), and the width of the notch of the cutter (9) is greater than the diameter of the braided tube, so as to enable the cutter (9) to avoid the braided tube.

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