Precise cutting device for hose machining

Abstract

The invention discloses a precise cutting device for hose machining, and relates to the technical field of hose cutting machining, the precise cutting device comprises a machine body and an operation table arranged on the machine body, a conveying component used for conveying a hose towards the operation table is arranged in the machine body, and a blanking hole used for blanking after cutting is formed in the bottom of the operation table; and the ring cutting assembly is arranged on the operation table and used for cutting and cutting the hose in a ring cutting mode. In the process that the device is used for cutting the hose, through mutual cooperation of the ring cutting assembly, the first supporting assembly, the second supporting assembly, the length fixing assembly and other parts, the situation that in the hose fixed-length cutting process, due to bending deformation of the hose, the cutting fixed-length size deviates can be avoided; and the inner side of the cutting position on the hose can be supported, the amplitude of deformation, deviation and vibration of the hose in the cutting process is reduced through the supporting effect, and the cutting precision of the hose is guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of hose cutting and processing, in particular to a precision cutting device for hose processing. Background Art

[0002] Different application scenarios have strict requirements on the length and port shape of the hose. Through cutting, the hose is processed to the precise designed length to ensure that it matches other components accurately during assembly to avoid installation difficulties or malfunctions caused by length deviation.

[0003] The main ways for cutting hoses by cutting devices include radial cutting (scissors-type / blade-type), circular cutting (rotary cutting / annular cutting) and sawing (reciprocating saw / circular saw). In hose processing, circular cutting is the mainstream method of high-precision cutting. In the process of circular cutting of hoses, firstly, the circumferential pressure applied by the tool will cause the inner wall of the hose to collapse inward or become elliptical due to lack of support, resulting in a "horseshoe-shaped" skew in the incision, causing a large diameter deviation. Secondly, the hose is very flexible and lacks internal support, which will cause the hose to swing during the cutting process and the cutting position to shift. Finally, when the hose is circularly cut at high speed, the hose lacking internal support is prone to vibration and produce incision ripples, which affects the high-precision cutting operation of the hose. For this reason, we propose a precision cutting device for hose processing. Summary of the invention

[0004] The object of the present invention is to provide a precise cutting device for hose processing to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solution: a precision cutting device for hose processing, comprising a machine body and an operating table arranged on the machine body, wherein a conveying component for conveying the hose toward the operating table is arranged inside the machine body, and a material drop hole for dropping the material after cutting is opened at the bottom of the operating table, and further comprising: A ring cutting assembly is arranged on the operating table and is used to cut the hose in a ring cutting manner; A first support assembly is arranged on the operating table and is used to support the inner side of the hose cut; The fixed length component is arranged on the operating table and is used to control the cutting length of the hose; And, a second support component is arranged on the first support component for supporting the hose to prevent bending during the fixed-length cutting process, and a separation and blanking component is arranged on the operating table for separating and blanking the materials after cutting.

[0006] Preferably, the first supporting assembly includes a mounting tube arranged on the operating table, the mounting tube having a mounting cavity provided therein, the mounting tube having a plurality of groups of square grooves communicating with the interior of the mounting cavity provided therein, and each group of square grooves being provided in a ring array, a square plate being slidably connected to the square groove, one end of the square plate being located on the outside of the mounting tube and being fixed with a fan-shaped plate for supporting against the inner side of the hose, and a transmission assembly for transmitting each group of square plates being provided inside the mounting cavity.

[0007] Preferably, the transmission assembly includes a driving disk rotatably connected to the inside of the mounting cavity, the driving disk is provided with a plurality of groups of inclined grooves, each group of the inclined grooves is slidably connected with a transmission pin, each group of the transmission pins is respectively fixed to each group of square plates, and a rotating assembly for rotating the driving disk is provided on the mounting cylinder.

[0008] Preferably, the rotating assembly includes a rotating shaft rotatably connected to the inside of the installation cavity, the driving disk is centrally fixed on the rotating shaft, and a first motor for driving the rotating shaft is installed on the installation cylinder.

[0009] Preferably, the fixed-length component includes a mounting bracket fixed on an operating table, the mounting bracket is provided with a circular hole for the mounting tube to pass through and move, one side of the mounting bracket is provided with an annular baffle for positioning against the front end of the hose, the mounting bracket is provided with an adjustment component for adjusting the position of the annular baffle and a guide component for guiding during the adjustment process.

[0010] Preferably, the adjustment assembly comprises a threaded rod rotatably connected to the mounting frame, a threaded tube is threadedly engaged on the threaded rod, one end of the threaded tube is fixed to the annular baffle, and a second motor for driving the threaded rod is installed on the mounting frame; The guide assembly includes two groups of first sleeves fixed on the annular baffle, the two groups of first sleeves are symmetrically arranged on both sides of the threaded tube, the two groups of first sleeves are slidably connected with a first slide rod, and one end of the first slide rod is fixed to the mounting frame.

[0011] Preferably, the second support assembly includes an arc-shaped support plate arranged on the outside of the mounting tube, and each group of arc-shaped support plates is arranged in a circular array on the outside of the mounting tube, an elastic assembly for elastically connecting the arc-shaped support plate is provided between the arc-shaped support plate and the mounting tube, and the front side of the arc-shaped support plate is provided with an inclined surface for resisting against the inner wall of the hose to push the arc-shaped support plate to retract.

[0012] Preferably, the elastic component includes multiple groups of second sleeves fixed to the outside of the mounting tube, the second sleeves are slidably connected with a second slide rod, one end of the second slide rod is fixed to the inner side of the arc-shaped support plate, and the outer side of the second sleeve is sleeved with a spring, and the two ends of the spring are respectively set to resist the outer side of the mounting tube and the inner side of the arc-shaped support plate.

[0013] Preferably, the separation and blanking assembly includes a connecting plate, a mounting hole is formed on the connecting plate, and the connecting plate is sleeved and fixed on the outer side of the mounting tube under the action of the mounting hole, an L-shaped frame is fixed on the mounting frame, a threaded sleeve is fixed on the connecting plate, a screw rod is rotatably connected between the L-shaped frame and the mounting frame, the screw rod and the threaded sleeve are meshed with each other, a third motor for rotating the screw rod is installed on the L-shaped frame, and multiple groups of guide rods are slidably connected to the connecting plate, and the guide rods are fixed between the mounting frame and the L-shaped frame.

[0014] Preferably, the circular cutting assembly includes a mounting disk, which is fixed to the operating table by multiple groups of mounting rods, a turntable is rotatably connected to the mounting disk, a rotating component for rotating with the turntable is provided on the mounting disk, multiple groups of slides are slidably connected to the turntable, each group of slides is arranged in a circular array on the turntable, a driving component for driving the slide to slide is provided on the turntable, and an arc-shaped cutter for cutting against the outside of the hose is fixed on the slide.

[0015] Compared with the prior art, the present invention has the following beneficial effects: In the process of using the device of the present invention to cut the hose, the ring cutting component, the first support component, the second support group and the fixed-length component cooperate with each other, which can not only avoid the deviation of the cut fixed-length size due to the bending deformation of the hose during the fixed-length cutting process, but also form support for the inner side of the cutting position on the hose. The support effect reduces the deformation, offset and vibration amplitude of the hose during the cutting process, thereby ensuring the cutting accuracy of the hose. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall appearance structure of the present invention; Figure 2 It is a schematic diagram of the structure of the operating table of the present invention; Figure 3 It is a schematic diagram of the structure of the ring cutting assembly of the present invention; Figure 4 It is a schematic diagram of the fixed-length component structure of the present invention; Figure 5 It is a schematic diagram of the structure of the adjustment component and the guide component of the present invention; Figure 6 It is a schematic diagram of the structure of the separation blanking assembly of the present invention; Figure 7 It is a schematic diagram of the transmission assembly and the rotating assembly structure of the present invention; Figure 8 It is a schematic structural diagram of the first supporting assembly of the present invention; Fig. 9 It is a schematic structural diagram of the second supporting assembly and the elastic assembly of the present invention; Fig.10 It is a schematic diagram of the hose of the present invention in an unsupported state; Fig.11 It is a schematic diagram of the hose of the present invention after being supported and fixed in length; Fig.12 It is a schematic diagram of the feeding state of the hose after cutting of the present invention.

[0017] In the figure: 101-body; 102-operating table; 103-dropping hole; 201-mounting plate; 202-mounting rod; 203-turntable; 204-slide; 205-arc cutter; 301-mounting cylinder; 302-mounting cavity; 303-square groove; 304-square plate; 305-sector plate; 401-driving plate; 402-bevel groove; 403-driving pin; 501-rotating shaft; 502-first motor; 601-mounting frame; 602-round hole ;603-annular baffle;701-threaded rod;702-threaded tube;703-second motor;801-first sleeve;802-first slide bar;901-arc support plate;902-inclined surface;1001-second sleeve;1002-second slide bar;1003-spring;1101-connecting plate;1102-mounting hole;1103-L-shaped frame;1104-threaded sleeve;1105-screw rod;1106-third motor;1107-guide rod. DETAILED DESCRIPTION

[0018] 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. Example

[0019] See also Figure 1-Figure 12 The figure shows a precise cutting device for hose processing, comprising a body 101 and an operating table 102 disposed on the body 101. A conveying component for conveying the hose toward the operating table 102 is disposed inside the body 101. A material drop hole 103 for dropping the material after cutting is provided at the bottom of the operating table 102. It should be noted here that: the conveying component is a conventional component in the hose conveying process, and its working principle and operation method are regarded as the prior art in this application, and will not be described in detail here; Also includes: A ring cutting assembly is provided on the operating table 102 and is used for cutting the hose in a ring cutting manner; A first support assembly is provided on the operating table 102 and is used to support the inner side of the hose cut; A length-fixing component, which is arranged on the operating table 102 and is used to control the length of the hose cut; And, a second support assembly is provided on the first support assembly for supporting the hose against bending during the fixed-length cutting process, and a separating and blanking assembly is provided on the operating table 102 for separating and blanking the materials after cutting and breaking; It should be noted here that: in the process of using the device to cut the hose, through the mutual cooperation of the ring cutting component, the first support component, the second support group and the fixed-length component, it can not only avoid the deviation of the cutting fixed-length size due to the bending deformation of the hose during the fixed-length cutting process, but also form support for the inner side of the cutting position on the hose. The support effect reduces the deformation, offset and vibration amplitude of the hose during the cutting process, thereby ensuring the cutting accuracy of the hose.

[0020] Preferably, the first support assembly includes a mounting cylinder 301 disposed on the operating table 102, the mounting cylinder 301 has a mounting cavity 302 formed therein, the mounting cylinder 301 has multiple groups of square grooves 303 disposed therein and communicating with the interior of the mounting cavity 302, and each group of square grooves 303 is disposed in a state of an annular array, a square plate 304 is slidably connected to the square groove 303, one end of the square plate 304 is located outside the mounting cylinder 301 and is fixed with a fan-shaped plate 305 for supporting against the inner side of the hose, and a transmission assembly for transmitting each group of square plates 304 is disposed inside the mounting cavity 302; It should be noted here that: after the hose is transported and fixed in length, each group of square plates 304 that are subjected to force are moved toward the outside of the mounting tube 301 on each group of square grooves 303 through transmission. During the movement, each group of fan-shaped plates 305 is abutted against the inner side of the position to be cut on the hose. Through the abutment, support is formed for the inner side of the cutting position on the hose. Through the support effect, the deformation, offset and vibration amplitude of the hose during the cutting process are reduced, thereby ensuring the cutting accuracy of the hose.

[0021] Preferably, the transmission assembly includes a driving disk 401 rotatably connected to the inside of the installation cavity 302, and a plurality of groups of inclined slots 402 are provided on the driving disk 401, and a driving pin 403 is slidably connected to each group of inclined slots 402, and each group of driving pins 403 is respectively fixed to each group of square plates 304, and a rotating assembly for rotating the driving disk 401 is provided on the installation cylinder 301; It should be noted here that: the driving disk 401 is rotated by the rotating component. During the rotation of the driving disk 401, through the interaction between each group of inclined grooves 402 and each group of transmission pins 403 and the connection between the transmission pins 403 and the square plates 304, the square plates 304 under force are moved closer to or away from each other on each group of square grooves 303.

[0022] Preferably, the rotating assembly includes a rotating shaft 501 rotatably connected to the inside of the installation cavity 302, the driving disk 401 is centrally fixed on the rotating shaft 501, and a first motor 502 for driving the rotating shaft 501 is installed on the installation cylinder 301; It should be noted here that the rotating shaft 501 is rotated by the first motor 502 .

[0023] Preferably, the fixed length component includes a mounting frame 601 fixed on the operating table 102, the mounting frame 601 is provided with a circular hole 602 for the mounting tube 301 to pass through and move, one side of the mounting frame 601 is provided with an annular baffle 603 for positioning against the front end of the hose, and the mounting frame 601 is provided with an adjustment component for adjusting the position of the annular baffle 603 and a guide component for guiding during the adjustment process; It should be noted here that: during the process of using the device to cut the hose, the hose is transported toward the inside of the operating table 102 through the conveying component on the body 101. During the conveying process, the installation cylinder 301 is inserted into the inside of the hose. By continuing to convey the hose, the conveying end of the hose is finally abutted against one side of the annular baffle 603, and the conveyed hose is positioned against each other. After the abutment and positioning, the cutting length of the hose is from the position on the hose that is aligned with each group of arc cutters 205 to the end of the hose that is abutted against the annular baffle 603, so as to achieve a fixed-length cutting effect during the hose cutting process.

[0024] Preferably, the adjustment component includes a threaded rod 701 rotatably connected to the mounting frame 601, a threaded tube 702 is threadedly engaged on the threaded rod 701, one end of the threaded tube 702 is fixed to the annular baffle 603, and a second motor 703 for driving the threaded rod 701 is installed on the mounting frame 601; the guide component includes two groups of first sleeves 801 fixed to the annular baffle 603, the two groups of first sleeves 801 are symmetrically arranged on both sides of the threaded tube 702, the two groups of first sleeves 801 are slidably connected to the first slide bar 802, and one end of the first slide bar 802 is fixed to the mounting frame 601; It should be noted here that: the threaded rod 701 is driven to rotate by the second motor 703. During the rotation of the threaded rod 701, the annular baffle 603 is moved after being subjected to force through the mutual meshing transmission between the threaded rod 701 and the threaded tube 702 and the sliding guiding effect of the first sleeve 801 and the first slide rod 802. Through the movement of the annular baffle 603, the position of the annular baffle 603 is adjusted. Through the adjustment effect, the length of the hose fixed-length cutting is convenient to control.

[0025] Preferably, the second support assembly includes an arc-shaped support plate 901 arranged outside the installation cylinder 301, and each group of arc-shaped support plates 901 is arranged in a state of an annular array outside the installation cylinder 301, and an elastic component for elastically connecting the arc-shaped support plate 901 is arranged between the arc-shaped support plate 901 and the installation cylinder 301, and a slope 902 for resisting against the inner wall of the hose to push the arc-shaped support plate 901 to contract is opened on the front side of the arc-shaped support plate 901; It should be noted here that: as the hose is transported and positioned at a fixed length, the inclined surface 902 of the arc-shaped support plate 901 on each group of the second support components is against the inner side of the hose. During the process of abutment, the arc-shaped support plate 901 is pushed to contract toward the outer side of the mounting tube 301. During the contraction movement, the spring 1003 on the elastic component pushes the outer side of the arc-shaped support plate 901 against the inner wall of the transported hose, thereby supporting the inside of the hose during the fixed-length positioning process. Through the supporting effect, the deviation of the cut length size caused by the bending and deformation of the hose during the fixed-length positioning process is avoided, thereby further improving the cutting accuracy of the hose.

[0026] Preferably, the elastic component includes a plurality of groups of second sleeves 1001 fixed to the outside of the installation tube 301, a second slide bar 1002 is slidably connected to the second sleeve 1001, one end of the second slide bar 1002 is fixed to the inner side of the arc-shaped support plate 901, and a spring 1003 is sleeved on the outer side of the second sleeve 1001, and the two ends of the spring 1003 are respectively set against the outer side of the installation tube 301 and the inner side of the arc-shaped support plate 901; It should be noted here that: the second sleeve 1001 and the second slide rod 1002 are used to assist the telescopic connection of the arc support plate 901, and the spring 1003 is used to elastically push the arc support plate 901 after the contraction movement.

[0027] Preferably, the separation blanking assembly includes a connecting plate 1101, a mounting hole 1102 is opened on the connecting plate 1101, and the connecting plate 1101 is sleeved and fixed on the outer side of the mounting tube 301 under the action of the mounting hole 1102, an L-shaped frame 1103 is fixed on the mounting frame 601, a threaded sleeve 1104 is fixed on the connecting plate 1101, a screw rod 1105 is rotatably connected to the L-shaped frame 1103 and the mounting frame 601, the screw rod 1105 and the threaded sleeve 1104 are meshed with each other, a third motor 1106 for rotating the screw rod 1105 is installed on the L-shaped frame 1103, and a plurality of guide rods 1107 are slidably connected to the connecting plate 1101, and the guide rods 1107 are fixed between the mounting frame 601 and the L-shaped frame 1103; It should be noted here that: the screw rod 1105 is driven to rotate by the third motor 1106. During the rotation of the screw rod 1105, the connecting plate 1101 and the installation cylinder 301 are moved away from the hose through the mutual meshing transmission between the screw rod 1105 and the threaded sleeve 1104 and the sliding guiding effect of the multiple sets of guide rods 1107. Through the movement effect, the installation cylinder 301 slides out from the inside of the cut hose, so that the cut hose falls to the bottom of the operating table 102 through the drop hole 103 under the action of gravity for collection.

[0028] Preferably, the circular cutting assembly includes a mounting plate 201, the mounting plate 201 and the operating table 102 are fixedly mounted via multiple groups of mounting rods 202, a turntable 203 is rotatably connected to the mounting plate 201, a rotating component for rotating with the turntable 203 is provided on the mounting plate 201, multiple groups of slides 204 are slidably connected to the turntable 203, each group of slides 204 is arranged in a state of an annular array on the turntable 203, a driving component for slidingly driving the slides 204 is provided on the turntable 203, and an arc-shaped cutter 205 for cutting against the outer side of the hose is fixed on the slide 204; It should be noted that after the hose is fixed in length and supported, the rotating disk 203 is driven to rotate by the rotating assembly. During the rotation of the rotating disk 203, the driving components cause each group of slides 204 and the arc cutters 205 on the slides 204 to move toward the outside of the hose. During the movement of the arc cutters 205, the arc cutters 205 are radially fed and rotated around the axial direction of the hose to cut the hose in a circular cutting manner. It is worth noting here that the rotating parts and driving parts are conventional rotating parts and moving parts, and are used as prior art in this application, and their working principles and operating methods are not described in detail here.

[0029] In this solution: A precision cutting device for hose processing includes the following steps: In the process of using the device to cut the hose, the hose is transported toward the inside of the operating table 102 through the transport component on the body 101. During the transport process, the installation cylinder 301 is inserted into the inside of the hose. By continuing to transport the hose, the hose delivery end is finally abutted against one side of the annular baffle 603, and the transported hose is abutted and positioned. After the abutment and positioning, the hose is cut to a length from the position on the hose that is aligned with each group of arc cutters 205 to the end of the hose that is abutted and positioned against the annular baffle 603, so as to achieve a fixed-length cutting effect during the hose cutting process, and as the hose is transported and progressed During the process of fixed-length positioning, the inclined surface 902 of the arc-shaped support plate 901 on each group of the second support components abuts against the inner side of the hose. During the abutment process, the arc-shaped support plate 901 is pushed to be forced toward the outer side of the installation tube 301 for contraction movement. During the contraction movement, the spring 1003 on the elastic component pushes the outer side of the arc-shaped support plate 901 to abut against the inner wall of the conveying hose, thereby supporting the inside of the hose during the fixed-length positioning process. Through the supporting effect, the deviation of the cut fixed-length size caused by the bending deformation of the hose during the fixed-length positioning process is avoided, thereby further improving the cutting accuracy of the hose. After the hose is conveyed and fixed in length, the driving disc 401 is rotated by the rotating assembly. During the rotation of the driving disc 401, the interaction between the groups of inclined grooves 402 and the groups of driving pins 403 and the connection between the driving pins 403 and the square plates 304 causes the groups of square plates 304 to move toward the outside of the mounting cylinder 301 on the groups of square grooves 303. During the movement, the groups of sector plates 305 are abutted against the inner side of the position to be cut on the hose, and the abutment is used to form a support for the inner side of the cutting position on the hose (see FIG. 2 ). Fig.11 The support function can reduce the deformation, deviation and vibration of the hose during cutting, thus ensuring the cutting accuracy of the hose; After the hose is fixed in length and supported, the turntable 203 is driven to rotate by the rotating assembly. During the rotation of the turntable 203, the driving components make each group of slides 204 and the arc cutter 205 on the slide 204 move toward the outside of the hose. During the movement of the arc cutter 205, the hose is cut in a circular cutting manner through the radial feeding of the arc cutter 205 and the axial rotation around the hose. After the cutting is completed, the slide 204 is driven to reset and the fan plates 305 of each group are no longer against the inner side of the hose through transmission. At this time, the installation cylinder 301 is moved away from the hose through the separation blanking assembly. Through the movement, the installation cylinder 301 slides out from the inside of the cut hose, so that the cut hose falls to the bottom of the operating table 102 through the blanking hole 103 under the action of gravity for collection (see Fig.12 status).

[0030] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0031] Although 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 the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A precision cutting device for hose processing, comprising: A machine body (101) and an operating table (102) arranged on the machine body (101), wherein a conveying component for conveying a hose toward the operating table (102) is arranged inside the machine body (101), and a material drop hole (103) for dropping material after cutting is opened at the bottom of the operating table (102); It is characterized by further comprising: A ring cutting assembly is arranged on the operating table (102) and is used to cut the hose in a ring cutting manner; A first support assembly is arranged on the operating table (102) and is used to support the inner side of the hose cut; A fixed length component, arranged on the operating table (102) and used for controlling the cutting length of the hose; And, a second support component is arranged on the first support component for supporting the hose to prevent bending during the fixed-length cutting process, and a separating and blanking component is arranged on the operating table (102) for separating and blanking the material after cutting.

2. A precision cutting device for hose processing according to claim 1, characterized in that: The first supporting assembly comprises a mounting tube (301) arranged on the operating table (102), the mounting tube (301) having a mounting cavity (302) formed therein, the mounting tube (301) having a plurality of groups of square grooves (303) arranged in communication with the interior of the mounting cavity (302), and each group of square grooves (303) being arranged in a state of an annular array, a square plate (304) being slidably connected to the square grooves (303), one end of the square plate (304) being located outside the mounting tube (301) and being fixed with a fan-shaped plate (305) for supporting against the inner side of the hose, and a transmission assembly for transmitting each group of square plates (304) being arranged inside the mounting cavity (302).

3. A precision cutting device for hose processing according to claim 2, characterized in that: The transmission assembly comprises a driving disk (401) rotatably connected to the interior of the installation cavity (302); a plurality of groups of inclined grooves (402) are provided on the driving disk (401); each group of the inclined grooves (402) is slidably connected to a driving pin (403); each group of the driving pins (403) is fixed to each group of square plates (304); and a rotating assembly for rotating the driving disk (401) is provided on the installation cylinder (301).

4. A precision cutting device for hose processing according to claim 3, characterized in that: The rotating assembly comprises a rotating shaft (501) rotatably connected to the interior of the installation cavity (302); the driving disk (401) is centrally fixed on the rotating shaft (501); and a first motor (502) for driving the rotating shaft (501) is mounted on the installation cylinder (301).

5. The precision cutting device for hose processing according to claim 2, characterized in that: The fixed-length component comprises a mounting frame (601) fixed on an operating table (102); a circular hole (602) for the mounting tube (301) to pass through and move is provided on the mounting frame (601); an annular baffle (603) for positioning against the front end of the hose is provided on one side of the mounting frame (601); and an adjustment component for adjusting the position of the annular baffle (603) and a guide component for guiding during the adjustment process are provided on the mounting frame (601).

6. A precision cutting device for hose processing according to claim 5, characterized in that: The adjustment assembly comprises a threaded rod (701) rotatably connected to a mounting frame (601); a threaded tube (702) is threadedly engaged with the threaded rod (701); one end of the threaded tube (702) is fixed to an annular baffle (603); and a second motor (703) for driving the threaded rod (701) is mounted on the mounting frame (601); The guide assembly comprises two groups of first sleeves (801) fixed on the annular baffle (603), the two groups of first sleeves (801) are symmetrically arranged on both sides of the threaded tube (702), and the two groups of first sleeves (801) are slidably connected to a first sliding rod (802), and one end of the first sliding rod (802) is fixed to the mounting frame (601).

7. A precision cutting device for hose processing according to claim 6, characterized in that: The second support assembly comprises an arc-shaped support plate (901) arranged outside the mounting tube (301), and each group of arc-shaped support plates (901) is arranged in a state of an annular array outside the mounting tube (301), an elastic assembly for elastically connecting the arc-shaped support plate (901) is arranged between the arc-shaped support plate (901) and the mounting tube (301), and a slope (902) for contacting with the inner wall of the hose to push the arc-shaped support plate (901) to contract is provided on the front side of the arc-shaped support plate (901).

8. The precision cutting device for hose processing according to claim 7, characterized in that: The elastic component comprises a plurality of groups of second sleeves (1001) fixed to the outside of the mounting tube (301), a second slide bar (1002) being slidably connected to the second sleeve (1001), one end of the second slide bar (1002) being fixed to the inner side of the arc-shaped support plate (901), a spring (1003) being sleeved on the outer side of the second sleeve (1001), and two ends of the spring (1003) being respectively disposed against the outer side of the mounting tube (301) and the inner side of the arc-shaped support plate (901).

9. A precision cutting device for hose processing according to claim 8, characterized in that: The separation and blanking assembly comprises a connecting plate (1101), a mounting hole (1102) is formed on the connecting plate (1101), and the connecting plate (1101) is sleeved and fixed on the outer side of the mounting tube (301) under the action of the mounting hole (1102); an L-shaped frame (1103) is fixed on the mounting frame (601); a threaded sleeve (1104) is fixed on the connecting plate (1101); a screw rod (1105) is rotatably connected between the L-shaped frame (1103) and the mounting frame (601); the screw rod (1105) and the threaded sleeve (1104) are meshed with each other; a third motor (1106) for rotating the screw rod (1105) is installed on the L-shaped frame (1103); a plurality of guide rods (1107) are slidably connected to the connecting plate (1101), and the guide rods (1107) are fixed between the mounting frame (601) and the L-shaped frame (1103).

10. The precision cutting device for hose processing according to claim 1, characterized in that: The circular cutting assembly comprises a mounting plate (201), wherein the mounting plate (201) is fixedly mounted on the operating table (102) via a plurality of mounting rods (202), a rotating plate (203) is rotatably connected to the mounting plate (201), a rotating component for rotating with the rotating plate (203) is provided on the mounting plate (201), a plurality of slides (204) are slidably connected to the rotating plate (203), each group of the slides (204) is arranged in a state of a circular array on the rotating plate (203), a driving component for slidably driving the slides (204) is provided on the rotating plate (203), and an arc-shaped cutter (205) for cutting against the outer side of the hose is fixed on the slide (204).

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