Composite pipe processing fixture

Abstract

The invention discloses a composite pipe processing fixture, which relates to the composite pipe processing technical field. The processing fixture comprises a fixture bracket body and two clamping parts. The upper and lower ends of the fixture bracket body are both provided with installation guide beams, and one of the installation guide beams is provided with a clamping driving component; the two clamping parts are relatively arranged on two installation slides, and the clamping parts comprise a clamping eccentric roller body, a transmission part and a clamping support arm; the clamping eccentric roller body is arranged between the two installation guide beams, the end of the clamping eccentric roller body has a rotating rod shaft, and the rotating rod shaft is elastically rotatably connected to the end of the installation slide by a torsion spring, and the two clamping support arms are provided with a first clamping part and a second clamping part; one end of the transmission part is connected to the rotating rod shaft and the other end is connected to the clamping support arm. The invention has a simple structure, clamps at two positions of the composite pipe to ensure its stability, and uses the pulling force of the cable to increase its clamping force and improve the clamping firmness, and has strong practicality.

Description

Technical Field

[0001] The invention relates to the technical field of composite pipe processing, in particular to a composite pipe processing fixture. Background Art

[0002] Composite pipes are tubular composite materials that are made by coating one metal surface with another or several metals by deformation, explosion, welding, casting, surface deposition and other methods. They have the mechanical, chemical, thermal and physical properties of different metals and are widely used in electronics, chemical industry, mining and metallurgy, electrical appliances, electricity, machinery, automobiles, energy and daily necessities.

[0003] Composite pipes will inevitably have various problems during use, such as rust and peeling of the surface skin. In order to continue to use the damaged composite pipes, the composite pipes need to be processed by various equipment. When processing the composite pipes, the composite pipes are first clamped and fixed by a fixture before processing.

[0004] In the prior art, due to the particularity of the shape and structure of composite pipes, conventional processing fixtures are provided with grooves on two plate surfaces and the composite pipes are placed therein, and the two plate surfaces are pushed close together to achieve clamping; for example, a patent application with announcement number CN209919332U discloses a pipe clamp for a pipe cutting machine, in which the fixing bolts of the clamp pass through the mounting holes to install the clamp, and the pipe is installed between a first clamping plate and a second clamping plate. The angle of the first clamping plate can be adjusted by the second telescopic rod, and the position of the second clamping plate can be adjusted by the first telescopic rod, thereby adjusting the angle between the first clamping plate and the second clamping plate, so as to effectively clamp the pipe; however, although this clamping method is initially stable, with the various tractions of the composite pipe during processing, it is easy to cause the clamping surface to be worn flat, thereby achieving the problem of loose clamping. Summary of the invention

[0005] The purpose of the present invention is to provide a composite pipe processing fixture to solve the problems in the background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A composite pipe processing fixture comprises a fixture support body and two clamping components, wherein the upper and lower ends of the fixture support body are provided with mounting guide beams, each mounting guide beam has two mounting slides sliding therein, one mounting guide beam is provided with a clamping drive component, and the clamping drive component is used to drive the two mounting slides in the mounting guide beam to move toward or away from each other; the two clamping components are relatively arranged on the two mounting slides and are located between the two mounting guide beams, and the clamping components include a clamping eccentric roller body, a transmission part and a clamping support arm; the clamping eccentric roller body is arranged on the two mounting guides The guide beams are arranged between the guide beams, the end of the clamping eccentric roller body has a rotating rod shaft, and the rotating rod shaft is elastically rotatably connected to the end of the mounting slide seat by a torsion spring, the end of the clamping support arm is rotatably connected to the mounting slide seat, and the ends of the two clamping support arms away from the mounting guide beam are respectively provided with a first clamping part and a second clamping part, and the first clamping part and the second clamping part can clamp the composite pipe when buckled; one end of the transmission part is connected to the rotating rod shaft and the other end is connected to the clamping support arm; the two clamping eccentric roller bodies can clamp the composite pipe, and the rotation of the clamping eccentric roller body can drive the clamping support arm to rotate around the connection between it and the mounting slide seat through the transmission part.

[0008] On the basis of the above technical solution, the present invention also provides the following optional technical solution:

[0009] In an optional scheme: the transmission part includes a toggle rod body, a connecting column and a driven protrusion, the connecting column is rotatably arranged on the mounting slide and the connecting column and the rotating rod shaft are connected through a gear transmission pair, the toggle rod body has a fixed sleeve and the fixed sleeve is sleeved on the connecting column, the toggle rod body is provided with a through groove along the length direction of the rod, the driven protrusion is fixed on the clamping support arm and the driven protrusion extends to the inside of the through groove.

[0010] In an optional solution: a plurality of concave annular grooves are provided on the outer wall of the clamping eccentric roller body, and the plurality of concave annular grooves are linearly and equidistantly distributed in the axial direction of the clamping eccentric roller body; and each concave annular groove has a plurality of annularly distributed friction-increasing strips inside.

[0011] In an optional scheme: the clamping drive component includes a driving rod shaft, a spiral section and at least one driving end, the driving rod shaft is transversely arranged inside the mounting guide beam and the end portion is rotatably matched with the end wall of the mounting guide beam; there are two spiral sections and they are arranged on the outer wall of the driving rod shaft, and the spiral directions of the two spiral sections are opposite; the driving rod shaft passes through two mounting slides and the two spiral sections are respectively spirally matched with the two mounting slides; the driving end is arranged at the end of the driving rod shaft and can drive the driving rod shaft to rotate.

[0012] In an optional scheme: the second clamping part includes a second clamping strip and a plurality of protrusions, the second clamping strip is arranged at the end of the clamping arm away from the mounting slide and is vertically arranged, and a plurality of protrusions are arranged on the second clamping strip in a linear and equidistant manner, and a clamping groove for clamping the composite pipe is formed between two adjacent second clamping strips; the first clamping part includes a first clamping strip and a pressing part, the first clamping strip is fixed on the clamping arm and is vertically arranged, and the side wall of the first clamping strip facing the second clamping part has a plurality of pressing parts, the pressing parts correspond one-to-one to the clamping grooves and press the composite pipe into the inside of the clamping groove when the first clamping part and the second clamping part are buckled.

[0013] In an optional solution: the cross-sections of the protrusion and the press-in portion are both trapezoidal in shape, and the ends of the protrusion and the press-in portion are arc-top structures.

[0014] In an optional solution: the first clamping part also includes a pulling piece, and a plurality of the pulling pieces are linearly and equidistantly arranged on the side of the first clamping strip. The pulling pieces correspond one to one with the pressing parts and are located on the side of the pressing parts, and the composite pipe can pass through the inside of the pulling piece.

[0015] In an optional scheme: the pulling member includes a fixed support arm, a fixed arc guide groove and a movable arc rod, the fixed support arm is fixed on the side wall, the fixed arc guide groove is arranged at one end of the fixed support arm, the movable arc rod is slidably arranged on the inner side of the fixed arc guide groove and can form an annular ring body with the fixed arc guide groove, and one end of the movable arc rod and the fixed arc guide groove both have a connecting part, and the two connecting parts can be snap-fitted.

[0016] In an optional solution: a guide plate is also provided on the clamp bracket body, the center line of the guide plate and the axis of the two clamping eccentric rollers are at the end points of a triangle, a plurality of guide holes are provided on the guide plate, and the guide holes are used for the composite pipe to pass through and guide the composite pipe between the two clamping eccentric rollers.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. The present invention clamps the composite pipe by rolling by setting an eccentric clamping roller, and clamps the composite pipe by clamping the first clamping part and the second clamping part to achieve plate clamping; the clamping stability is improved by clamping in two ways;

[0019] 2. The present invention utilizes an eccentric clamping roller to increase the clamping force as the composite pipe rotates and realizes the tightness of the first clamping part and the second clamping part through the transmission part, thereby effectively improving the clamping strength;

[0020] 3. The present invention has a simple structure, clamps the composite pipe at two locations to ensure its stability, and utilizes the pulling force of the cable to increase the clamping force and improve the clamping firmness, and is highly practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the clamp in one embodiment of the present invention.

[0022] Figure 2 It is a schematic diagram of the structure of the transmission part in one embodiment of the present invention.

[0023] Figure 3 It is a schematic diagram of the structure of a clamping eccentric roller in one embodiment of the present invention.

[0024] Figure 4 Schematic diagram of the structure of the first clamping portion in one embodiment of the present invention.

[0025] Figure 5 A schematic diagram of the structure of a pulling member in an embodiment of the present invention

[0026] Notes on figure marks: clamp bracket body 1, installation guide beam 2, installation slide 3, clamping drive member 4, drive rod shaft 41, spiral section 42, drive end 43, clamping eccentric roller body 6, rotating rod shaft 61, concave annular groove 62, friction strip 63, clamping arm 7, first clamping part 8, first clamping slat 81, pressing part 82, pulling member 83, fixed arm 831, fixed arc guide groove 832, movable arc rod 833, connecting part 834, second clamping part 9, second clamping slat 91, protrusion 92, clamping groove 93, transmission part 10, toggle rod body 101, connecting rotating column 102, driven boss 103, gear transmission pair 104, through groove 105, guide plate 11, guide hole 12. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments; in the drawings or descriptions, similar or identical parts use the same reference numerals, and in practical applications, the shape, thickness or height of each component can be enlarged or reduced. The various embodiments listed in the present invention are only used to illustrate the present invention and are not used to limit the scope of the present invention. Any obvious modifications or changes made to the present invention do not depart from the spirit and scope of the present invention.

[0028] In one embodiment, Figure 1 and Figure 2As shown, a composite pipe processing fixture includes a fixture support body 1 and two clamping parts, the upper and lower ends of the fixture support body 1 are provided with mounting guide beams 2, each mounting guide beam 2 has two mounting slides 3 sliding therein, one of the mounting guide beams 2 is provided with a clamping drive component 4, the clamping drive component 4 is used to drive the two mounting slides 3 in the mounting guide beam 2 to move toward or away from each other; the two clamping parts are relatively arranged on the two mounting slides 3 and are located between the two mounting guide beams 2, the clamping parts include a clamping eccentric roller body 6, a transmission part 10 and a clamping support arm 7; the clamping eccentric roller body 6 is arranged on the two mounting guide beams 2, the end of the clamping eccentric roller body 6 has a rotating shaft 61, and the rotating shaft 61 is elastically rotatably connected to the end of the mounting slide 3 through a torsion spring, the end of the clamping support arm 7 is rotatably connected to the mounting slide 3, and the ends of the two clamping support arms 7 away from the mounting guide crossbeam 2 are respectively provided with a first clamping portion 8 and a second clamping portion 9, and the first clamping portion 8 and the second clamping portion 9 can clamp the composite pipe when buckled; one end of the transmission part 10 is connected to the rotating shaft 61 and the other end is connected to the clamping support arm 7; the two clamping eccentric roller bodies 6 can clamp the composite pipe, and the rotation of the clamping eccentric roller body 6 can drive the clamping support arm 7 to rotate around the connection between it and the mounting slide 3 through the transmission part 10;

[0029] During the implementation of this embodiment, the composite pipe passes through the two clamping eccentric rollers 6 and extends to the first clamping part 8 and the second clamping part 9; the two mounting slides 3 in the mounting guide beam 2 are driven to move toward each other by the clamping drive member 4, and then the two clamping parts move toward each other to clamp the composite pipe, wherein the side walls of the two clamping eccentric rollers 6 clamp the composite pipe and the first clamping part 8 and the second clamping part 9 are engaged to clamp the composite pipe, thereby achieving double-layer clamping; when the composite pipe is pulled forward due to external force during processing, the movement of the composite pipe will drive the clamping eccentric roller 6 to move due to the friction between the outer wall of the clamping eccentric roller 6 and the composite pipe. The center roller body 6 rotates, and due to the eccentric rotation of the clamping eccentric roller body 6, the two clamping eccentric roller bodies 6 rotate closer to each other at a larger distance from the rotation center, thereby improving the clamping strength of the composite pipe; and the rotation of the clamping eccentric roller body 6 also drives the two clamping arms 7 to rotate relative to each other through the transmission part 10, thereby improving the buckling tightness of the first clamping part 8 and the second clamping part 9, and further improving the clamping strength of the composite pipe, avoiding the movement of the composite pipe during the processing and affecting the accuracy of the processing position. As an embodiment, the left and right up and down positions of the various components given in the drawings are only one arrangement method, and the specific positions are set according to specific needs;

[0030] In one embodiment, Figure 2As shown, the transmission part 10 includes a toggle rod body 101, a connecting column 102 and a driven protrusion 103, the connecting column 102 is rotatably arranged on the mounting slide 3 and the connecting column 102 is connected to the rotating rod shaft 61 through a gear transmission pair 104, the toggle rod body 101 has a fixed sleeve and the fixed sleeve is sleeved on the connecting column 102, the toggle rod body 101 is provided with a through groove 105 along the length direction of the rod, the driven protrusion 103 is fixed on the clamping support arm 7 and the driven protrusion 103 extends to the inside of the through groove 105; in this embodiment, the clamping eccentric roller body 6 is subjected to a composite The friction force of the pipe rotates, and the rotating rod shaft 61 rotates accordingly and drives the connecting rotating column 102 to rotate through the gear transmission pair 104. The rotation of the connecting rotating column 102 drives the toggle rod body 101 to rotate. Since the end of the driven protrusion 103 extends into the through groove 105, the driven protrusion 103 slides in the through groove 105, and the driven protrusion 103 can be driven by the toggle rod body 101 to rotate and drive the clamping arm 7 to rotate around the connection between it and the mounting slide 3, so that the first clamping part 8 and the second clamping part 9 provided at the ends of the two clamping arms 7 can be tightly buckled to clamp the composite pipe.

[0031] In one embodiment, Figure 3 As shown, the outer wall of the clamping eccentric roller body 6 is provided with a plurality of concave annular grooves 62, and the plurality of concave annular grooves 62 are linearly and equidistantly distributed in the axial direction of the clamping eccentric roller body 6; each concave annular groove 62 has a plurality of annularly distributed friction increasing strips 63 inside; when the two clamping eccentric roller bodies 6 clamp the composite pipe, the composite pipe will be placed inside the concave annular groove 62, and since the cross-section of the composite pipe is generally circular, the side wall of the composite pipe is in surface contact with the concave annular groove 62, thereby increasing the friction thereof, and the composite pipe placed in the concave annular groove 62 will not maintain stability and will not vibrate up and down; the provision of the friction increasing strips 63 can increase the friction between the concave annular groove 62 and the outer wall of the composite pipe.

[0032] In one embodiment, Figure 1As shown, the clamping drive member 4 includes a drive rod shaft 41, a spiral section 42 and at least one drive end 43. The drive rod shaft 41 is transversely arranged inside the installation guide beam 2 and the end thereof is rotatably matched with the end wall of the installation guide beam 2; there are two spiral sections 42 and they are arranged on the outer wall of the drive rod shaft 41, and the spiral directions of the two spiral sections 42 are opposite; the drive rod shaft 41 passes through two installation slides 3 and the two spiral sections 42 are respectively spirally matched with the two installation slides 3; the drive end 43 is arranged at the end of the drive rod shaft 41 and can drive the drive rod shaft 41 to rotate; in this embodiment, the drive end 43 is The motor or the operating hand wheel controls the driving end 43 to drive the driving rod shaft 41 to rotate, and the spiral section 42 cooperates with the spiral of the mounting slide 3 to make the two mounting slides 3 move toward or away from each other, thereby driving the clamping component to clamp or loosen the composite pipe; wherein, in addition to the structure disclosed above, the clamping driving member 4 can also be a belt transmission mechanism in the prior art, one end of which is connected to the rotating rod shaft 61 and the other end is connected to the connection between the clamping support arm 7 and the mounting slide 3; the belt transmission mechanism is used to realize the rotation of the rotating rod shaft 61 to drive the connection between the clamping support arm 7 and the mounting slide 3 to rotate;

[0033] In one embodiment, Figure 1 and Figure 4 As shown, the second clamping portion 9 includes a second clamping strip 91 and a plurality of protrusions 92. The second clamping strip 91 is arranged at the end of the clamping arm 7 away from the mounting slide 3 and is vertically arranged. The plurality of protrusions 92 are arranged on the second clamping strip 91 in a linearly equidistant manner. A clamping groove 93 for clamping the composite pipe is formed between two adjacent second clamping strips 91. The first clamping portion 8 includes a first clamping strip 81 and a pressing portion 82. The first clamping strip 81 is fixed on the clamping arm 7 and is vertically arranged. The first clamping strip 81 has a plurality of press-in portions 82 on the side wall facing the second clamping portion 9, and the press-in portions 82 correspond to the clamping grooves 93 one by one and press the composite pipe into the inside of the clamping grooves 93 when the first clamping portion 8 and the second clamping portion 9 are buckled. In this embodiment, the clamping grooves 93 formed by the protrusions 92 can clamp the cable and keep it in a horizontal state, and the composite pipe is directly pressed into the clamping grooves 93 by the press-in portions 82, and the tightness of the buckling of the first clamping portion 8 and the second clamping portion 9 is matched to improve the strength of the clamping of the composite pipe.

[0034] In one embodiment, Figure 1 and Figure 4 As shown, the cross-sections of the protrusion 92 and the pressing portion 82 are both trapezoidal, and the ends of the protrusion 92 and the pressing portion 82 are arc-top structures; in this embodiment, the second clamping strip 91 adopts a trapezoidal structure so that the clamping groove 93 is a V-shaped structure, which can clamp composite pipes of different diameters, and the V-shaped structure improves the clamping firmness as the composite pipe is pressed into depth by the pressing portion 82;

[0035] In one embodiment, Figure 1 and Figure 4 As shown, the first clamping portion 8 also includes a pulling member 83, and the pulling members 83 are arranged linearly and equidistantly on the side of the first clamping strip 81. The pulling members 83 correspond to the pressing portions 82 one by one and are located on the side of the pressing portions 82. The composite pipe can pass through the inside of the pulling member 83. In this embodiment, after the composite pipe is processed, the two mounting slides 3 are driven to move away from each other by the clamping driving member 4, and the two clamping eccentric rollers 6 relax the composite pipe and the first clamping portion 8 and the second clamping portion 9 move away from each other. Since the composite pipe passes through the pulling member 83, the composite pipe can be pulled out from the inside of the protrusion 92 when the pulling member 83 moves, so as to avoid the composite pipe being buckled in the inside of the protrusion 92, thereby reducing the difficulty of disassembling the composite pipe.

[0036] In one embodiment, Figure 4 and Figure 5 As shown, the pulling member 83 includes a fixed arm 831, a fixed arc guide groove 832 and a movable arc rod 833, wherein the fixed arm 831 is fixed on the side wall of 81, the fixed arc guide groove 832 is arranged at one end of the fixed arm 831, the movable arc rod 833 is slidably arranged inside the fixed arc guide groove 832 and can form an annular ring body with the fixed arc guide groove 832, and one end of the movable arc rod 833 and the fixed arc guide groove 832 are both provided with a connecting portion 834, and the two connecting portions 834 can be snap-fitted; in this embodiment, when the pressing portion 82 presses the composite pipe into the clamping groove 93, the movable arc rod 833 can be rotated out from the fixed arc guide groove 832 by rotating the movable arc rod 833, and form an annular ring body that surrounds the composite pipe with the fixed arc guide groove 832; the annular ring body is closed and opened by the snap-fit ​​of the connecting portion 834; it is convenient to pull the composite pipe out of the clamping groove 93;

[0037] In one embodiment, Figure 1 As shown, the fixture bracket body 1 is also provided with a guide plate 11, the center line of the guide plate 11 and the axis of the two clamping eccentric rollers 6 are at the end point position of a triangle, and the guide plate 11 is provided with a plurality of guide holes 12, and the guide holes 12 are used for the composite pipe to pass through and guide the composite pipe to between the two clamping eccentric rollers 6; through the arrangement of the guide plate 11 and the guide holes 12, a plurality of composite pipes can be guided to between the two clamping eccentric rollers 6 for clamping, thereby ensuring the clamping position preparation;

[0038] The above embodiment discloses a composite pipe processing fixture, wherein the two installation slides 3 in the installation guide cross beam 2 are driven by the clamping driving member 4 to move toward each other, and then the two clamping components move toward each other to clamp the composite pipe, wherein the side walls of the two clamping eccentric rollers 6 clamp the composite pipe, and the first clamping part 8 and the second clamping part 9 are engaged to clamp the composite pipe, so that double-layer clamping can be achieved; when the composite pipe is pulled forward due to external force during processing, the composite pipe is pulled forward due to the friction between the outer wall of the clamping eccentric roller 6 and the composite pipe. The movement of the composite pipe will drive the clamping eccentric roller 6 to rotate. Due to the eccentric rotation of the clamping eccentric roller 6, the two clamping eccentric rollers 6 rotate closer to each other at a position farther away from the rotation center, thereby increasing the clamping force on the composite pipe; and the rotation of the clamping eccentric roller 6 also drives the two clamping arms 7 to rotate relative to each other through the transmission part 10, thereby increasing the buckling tightness of the first clamping part 8 and the second clamping part 9, and further increasing the clamping strength of the composite pipe, thereby avoiding the movement of the composite pipe during processing and affecting the accuracy of the processing position.

[0039] The above is only a specific implementation of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any person skilled in the art who is familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present disclosure, which should be included in the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be based on the protection scope of the claims.

Claims

1. A composite pipe processing fixture, comprising a fixture support body and two clamping components, characterized in that: The clamp bracket body is provided with installation guide beams at the upper and lower ends, each installation guide beam has two slidable installation slides inside, and also includes a clamping drive component, the clamping drive component is used to drive the two installation slides to move towards or away from each other; The clamping component includes a clamping eccentric roller body, a transmission part and two clamping arms rotatably connected to the mounting slide; The end of the clamping eccentric roller body is provided with a rotating shaft, and the rotating shaft is elastically rotatably connected with the end of the mounting slide seat through a torsion spring; The ends of the two clamping arms are respectively provided with a first clamping portion and a second clamping portion, and the first clamping portion and the second clamping portion can clamp the composite pipe when fastened; The transmission part is connected to the rotating rod shaft and the clamping support arm; the two clamping eccentric rollers can clamp the composite pipe, and the rotating clamping eccentric roller drives the clamping support arm to rotate around the connection between it and the mounting slide seat through the transmission part; The two clamping components are arranged on the two mounting slides opposite to each other and are located between the two mounting guide beams; The transmission part includes a toggle rod body, a connecting rotating column and a driven protruding column; The connecting rotating column is rotatably arranged on the mounting slide, and the connecting rotating column and the rotating rod shaft are connected to each other through a gear transmission pair; The toggle rod body has a fixed sleeve which is sleeved on the connecting rotating column, and the toggle rod body is provided with a through groove along the length direction of the rod; The driven boss is fixed on the clamping arm and extends into the through slot; The outer wall of the clamping eccentric roller body is provided with a plurality of concave annular grooves, which are linearly and equidistantly distributed in the axial direction of the clamping eccentric roller body; each concave annular groove has a plurality of annularly distributed friction-increasing strips inside; The clamping drive member includes a drive shaft, a spiral section and at least one drive end; The drive rod shaft is transversely arranged inside the installation guide beam and the end portion is rotationally matched with the end wall of the installation guide beam; There are two spiral segments which are arranged on the outer wall of the driving rod shaft, and the spiral directions of the two spiral segments are opposite; The drive rod shaft passes through the two mounting slides and the two spiral sections are respectively spirally matched with the two mounting slides; The driving end is arranged at the end of the driving rod shaft and can drive the driving rod shaft to rotate.

2. The composite pipe processing fixture according to claim 1, characterized in that: The second clamping portion includes a second clamping strip and a plurality of protrusions; The second clamping strip is arranged at the end of the clamping arm away from the mounting slide and is arranged vertically, and a plurality of protrusions are arranged on the second clamping strip in a linear and equidistant manner, and a clamping groove for clamping the composite pipe is formed between two adjacent second clamping strips; The first clamping portion includes a first clamping strip and a pressing portion, wherein the first clamping strip is fixed on the clamping arm and arranged vertically; The first clamping strip has a plurality of pressing parts on the side wall facing the second clamping part, and the pressing parts correspond to the clamping grooves one by one and press the composite pipe into the inside of the clamping groove when the first clamping part and the second clamping part are buckled.

3. The composite pipe processing fixture according to claim 2, characterized in that: The cross sections of the protrusion and the press-in portion are both trapezoidal in shape, and the ends of the protrusion and the press-in portion are arc-top structures.

4. The composite pipe processing fixture according to claim 3, characterized in that: The first clamping part also includes a pulling piece, and a plurality of the pulling pieces are linearly and equidistantly arranged on the side of the first clamping strip. The pulling pieces correspond to the pressing parts one by one and are located on the side of the pressing parts. The composite pipe can pass through the inside of the pulling pieces.

5. The composite pipe processing fixture according to claim 4, characterized in that: The pulling member comprises a fixed support arm, a fixed arc guide groove and a movable arc rod; The fixed support arm is fixed on the side wall, and the fixed arc guide groove is provided at one end of the fixed support arm; The movable arc rod is slidably arranged inside the fixed arc guide groove and can form an annular ring body with the fixed arc guide groove. One end of the movable arc rod and the fixed arc guide groove both have connecting parts, and the two connecting parts can be snap-fitted.

6. The composite pipe processing fixture according to claim 1, characterized in that: A guide plate is also provided on the clamp bracket body, the center line of the guide plate and the axis of the two clamping eccentric rollers are at the end points of a triangle, a plurality of guide holes are provided on the guide plate and the guide holes are used for the composite pipe to pass through and guide the composite pipe between the two clamping eccentric rollers.

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