A Y-shaped three-way pipe flat mouth machine

Abstract

The present invention provides a Y-shaped three-way pipe flat mouth machine, belonging to the technical field of pipe production equipment. It can realize the automatic feeding and automatic flat mouth work of the Y-shaped three-way pipe, and avoid the situation that the debris generated during the flat mouth of the Y-shaped three-way pipe contacts the surface of the Y-shaped three-way pipe, resulting in scratches on the surface of the Y-shaped three-way pipe and reducing the finished product rate of the Y-shaped three-way pipe. The Y-shaped three-way pipe flat mouth machine of the present invention includes a frame, a console, a pushing cylinder, a feeding mechanism, a clamping mechanism and a flat mouth mechanism; the console, the feeding mechanism and the clamping mechanism are sequentially arranged on the frame from left to right along the length direction of the frame, the flat mouth mechanism is also located on the frame, and the flat mouth mechanism is located behind the feeding mechanism. The number of the flat mouth mechanisms is two, and the two flat mouth mechanisms are respectively located on the left and right sides of the clamping mechanism, and the two flat mouth mechanisms are arranged in a staggered manner. The pushing cylinder is located on one side of the clamping mechanism close to the flat mouth mechanism.

Description

Technical Field

[0001] The present invention belongs to the technical field of pipe production equipment and relates to a Y-shaped three-way pipe flatting machine. Background Art

[0002] As a connector, the Y-shaped three-way pipe is widely used in products such as air conditioners and refrigeration equipment. To meet the usage requirements, the finished Y-shaped three-way pipe needs to be formed by flaring and through-holing a blank part. After the finished product is obtained, the pipe orifice of the Y-shaped three-way pipe needs to be flattened to meet the usage requirements.

[0003] When the existing Y-shaped three-way pipe flatting machine is in use, it can only manually place the Y-shaped three-way pipe on the flatting machine to first flatten one end of the Y-shaped three-way pipe. After completion, the other end is flattened on another flatting machine. This makes the processing efficiency of placing the Y-shaped three-way pipe relatively low, and during the processing, the debris generated during the flatting of the Y-shaped three-way pipe is not well processed, resulting in the debris coming into contact with the Y-shaped three-way pipe, causing wear of the Y-shaped three-way pipe and thus reducing the finished product rate. Summary of the Invention

[0004] The purpose of the present invention is to address the above problems existing in the prior art and propose a Y-shaped three-way pipe flatting machine. This Y-shaped three-way pipe flatting machine can realize the automatic feeding and automatic flatting of the Y-shaped three-way pipe, and avoid the situation where the debris generated during the flatting of the Y-shaped three-way pipe comes into contact with the surface of the Y-shaped three-way pipe, causing scratches on the surface of the Y-shaped three-way pipe and reducing the finished product rate of the Y-shaped three-way pipe.

[0005] The purpose of the present invention can be achieved by the following technical solutions: A Y-shaped three-way pipe flatting machine includes a frame, a console, a pushing cylinder, a feeding mechanism, a clamping mechanism, and a flatting mechanism; the console, the feeding mechanism, and the clamping mechanism are sequentially arranged on the frame from left to right along the length direction of the frame. The flatting mechanism is also located on the frame, and the flatting mechanism is located behind the feeding mechanism. The number of the flatting mechanisms is two, and the two flatting mechanisms are respectively located on the left and right sides of the clamping mechanism, and the two flatting mechanisms are arranged in a staggered manner. The pushing cylinder is located on the side of the clamping mechanism close to the flatting mechanism.

[0006] When starting this flatting machine, the feeding mechanism controls the Y-shaped three-way pipe to be flattened to enter the clamping mechanism at a uniform speed. The clamping mechanism positions and clamps the Y-shaped three-way pipe conveyed by the feeding mechanism, and moves the clamped Y-shaped three-way pipe in the direction close to the flatting mechanism. When the Y-shaped three-way pipe is transported to the flatting mechanism, the three pipe orifices of the Y-shaped three-way pipe are flattened by the two flatting mechanisms. After the Y-shaped three-way pipe is flattened, the clamping mechanism drives the Y-shaped three-way pipe to reset, and during the reset process, the pushing cylinder is used to discharge the Y-shaped three-way pipe from the clamping mechanism.

[0007] For the above-mentioned Y-shaped three-way pipe flat mouth machine, the feeding mechanism includes a mounting frame arranged on the machine frame. An inlet disk is provided on the mounting frame, and an arc-shaped material path is arranged on one side of the inlet disk facing the center line of the machine frame.

[0008] Start this flat mouth machine, and the inlet disk on the machine frame controls the Y-shaped three-way pipes to be flat-mouthed inside to be conveyed along the material path at a constant speed to the clamping mechanism for subsequent clamping and flat-mouth work.

[0009] For the above-mentioned Y-shaped three-way pipe flat mouth machine, the clamping mechanism includes a clamping part close to the feeding mechanism and a pushing part far from the feeding mechanism.

[0010] For the above-mentioned Y-shaped three-way pipe flat mouth machine, the clamping part of the clamping mechanism includes a track arranged on the machine frame. A sliding plate is slidably connected to the track. A first fixture and a first support plate are detachably arranged on the sliding plate. The first support plate is located behind the first fixture. A second support plate is arranged on one side of the first support plate facing the feeding mechanism. A first air cylinder is arranged on one side of the second support plate far from the feeding mechanism. A second fixture cooperating with the first fixture is arranged on the piston rod of the first air cylinder. A bracket is further arranged at one end of the first support plate far from the second support plate, and a drag chain is arranged on the bracket.

[0011] For the above-mentioned Y-shaped three-way pipe flat mouth machine, the pushing part of the clamping mechanism includes a first positioning block arranged on the machine frame. A placement plate is arranged on the first positioning block. A second air cylinder is arranged on the part of the placement plate far from the feeding mechanism. The piston rod of the second air cylinder faces the feeding mechanism. A pushing plate is arranged on the piston rod of the second air cylinder. A material blocking block is arranged on the part of the placement plate close to the feeding mechanism.

[0012] When the feeding mechanism conveys the Y-shaped three-way pipe to the clamping mechanism, the Y-shaped three-way pipe falls onto the placement plate through the material blocking block. At this time, the piston rod of the second air cylinder pushes the pushing plate to slide in the direction close to the Y-shaped three-way pipe, and the pushing plate is used to push the Y-shaped three-way pipe towards the first fixture of the clamping part;

[0013] When the Y-shaped three-way pipe enters the first fixture, the piston rod of the first air cylinder pushes the second fixture towards the first fixture and fits with the first fixture. Through the cooperation between the first fixture and the second fixture, the Y-shaped three-way pipe is limited;

[0014] After the Y-shaped three-way pipe is clamped, the drag chain drives the sliding plate on the guide rail to move towards the direction close to the flat mouth mechanism through the bracket for subsequent flat mouth work of the Y-shaped three-way pipe.

[0015] The above-mentioned Y-shaped three-way pipe flat mouth machine, the flat mouth mechanism includes a power part and a flat mouth part, and the distance between the flat mouth part and the center line of the frame is less than the distance between the power part and the center line of the frame.

[0016] The above-mentioned Y-shaped three-way pipe flat mouth machine, the power part of the flat mouth mechanism includes a second positioning block arranged on the frame, a ball box is arranged on the second positioning block, a spline shaft is arranged in the ball box, and a first dust-proof shell and a second dust-proof shell are successively arranged on one side of the ball box away from the center line of the frame. A servo motor for driving the spline shaft to operate is arranged on the first dust-proof shell, and a flat mouth part is detachably arranged at one end of the spline shaft close to the center line of the frame.

[0017] The above-mentioned Y-shaped three-way pipe flat mouth machine, the flat mouth part includes a chute opened on one side of the spline shaft close to the center line of the frame. The number of the chutes is three. Each chute is slidably connected with a flat mouth knife through a spring. One end of the flat mouth knife away from the spline shaft is provided with an inverted chamfer. At least two through holes are opened on each flat mouth knife, and a locking block for locking the three flat mouth knives is detachably arranged on the spline shaft.

[0018] The above-mentioned Y-shaped three-way pipe flat mouth machine, the locking block is composed of an elastic part in contact with the flat mouth knife and a metal part in contact with the spline shaft.

[0019] When the clamping mechanism drives the Y-shaped three-way pipe to run to the flat mouth mechanism, the servo motor of the flat mouth mechanism starts, and the spline shaft drives the flat mouth part to move towards the direction close to the Y-shaped three-way pipe, so that the flat mouth knife enters the pipe orifice of the Y-shaped three-way pipe to complete the flat mouth work of the pipe orifice of the Y-shaped three-way pipe.

[0020] Since the two flat mouth mechanisms are arranged in a staggered manner on the frame, driven by the drag chain, when the Y-shaped three-way pipe is located at the flat mouth mechanism, the drag chain can control the slide plate to reciprocate on the guide rail, so as to realize that the flat mouth mechanism performs flat mouth work on the three pipe orifices of the Y-shaped three-way pipe;

[0021] Since the flat-end cutter is slidably arranged in the chute of the spline shaft through a spring, in the initial state, the three flat-end cutters are located in the chute close to the center line of the spline shaft, controlling the minimum circumscribed circle diameter of the three flat-end cutters, and the end face of the flat-end cutter away from the spline shaft is provided with an inclined chamfer, making it easier for the three flat-end cutters to enter the pipe orifice of the Y-shaped three-way pipe. This effectively solves the problem that in the existing situation, when the pipe orifice of the Y-shaped three-way pipe deforms and the pipe orifice diameter becomes smaller, the flat-end cutter cannot directly enter the pipe orifice and has hard contact with the pipe orifice, causing damage to the Y-shaped three-way pipe. At the same time, it ensures the yield rate of the Y-shaped three-way pipe during the flatting process. When the flatting mechanism is started, the spline shaft of the power part of the flatting mechanism rotates to generate centrifugal force. Under the action of the centrifugal force, the flat-end cutter expands in the direction away from the center line of the spline shaft and contacts the pipe orifice of the Y-shaped three-way pipe to complete the flatting work of the Y-shaped three-way pipe;

[0022] Further, a number of through holes are provided on each flat-end cutter. After the flat-end cutter finishes flatting the Y-shaped three-way pipe, the number of through holes can accelerate the air circulation on the flat-end cutter, improve the cooling speed of the flat-end cutter, and avoid the temperature of the flat-end cutter being too high, which may affect the material properties of the Y-shaped three-way pipe in a high-temperature environment;

[0023] When the flat-end cutter flats the Y-shaped three-way pipe, the debris generated by the flatting can fall between the three flat-end cutters along the number of through holes. On the one hand, it avoids the contact between the debris and the inner wall of the Y-shaped three-way pipe, causing wear to the Y-shaped three-way pipe. On the other hand, after the flatting is completed, the debris can be removed from the Y-shaped three-way pipe together with the flat-end cutter, avoiding the debris remaining inside the Y-shaped three-way pipe and affecting the subsequent processing procedures;

[0024] Further, the locking block is composed of an elastic part in contact with the flat-end cutter and a metal part in contact with the spline shaft. On the one hand, the setting of the metal part ensures the stability of the installation of the flat-end cutter on the spline shaft. On the other hand, through the installation of the elastic part, when the flat-end cutter moves in the chute of the spline shaft, it also has sufficient stability.

[0025] Compared with the prior art, the water-saving external shower faucet has the following advantages:

[0026] 1. Since the two flatting mechanisms are arranged in a staggered manner on the frame, driven by the drag chain, when the Y-shaped three-way pipe is located at the flatting mechanism, the drag chain can control the sliding plate to reciprocate on the guide rail to achieve the flatting work of the three pipe orifices of the Y-shaped three-way pipe by the flatting mechanism.

[0027] 2. Since the flat-end cutter is slidably arranged in the chute of the spline shaft through a spring, and the end face of the flat-end cutter away from the spline shaft is provided with an inverted chamfer, it is easier for the three flat-end cutters to enter the pipe orifice of the Y-shaped three-way pipe, effectively solving the problem that in the existing situation, when the orifice of the Y-shaped three-way pipe is deformed and the orifice diameter becomes smaller, the flat-end cutter cannot directly enter the orifice and makes hard contact with the orifice, resulting in damage to the Y-shaped three-way pipe. At the same time, the yield rate of the Y-shaped three-way pipe during the flatting process is ensured.

[0028] 3. Through the opening of a number of through holes on each flat-end cutter, when the flatting of the Y-shaped three-way pipe by the flat-end cutter is completed, the number of through holes can accelerate the air circulation on the flat-end cutter, improve the cooling speed of the flat-end cutter, and avoid the temperature of the flat-end cutter being too high, which may affect the material properties of the Y-shaped three-way pipe in a high-temperature environment.

[0029] 4. When the flat-end cutter flats the Y-shaped three-way pipe, the debris generated by the flatting can fall between the three flat-end cutters along the number of through holes. On the one hand, it avoids the contact between the debris and the inner wall of the Y-shaped three-way pipe, causing wear to the Y-shaped three-way pipe. On the other hand, after the flatting is completed, the debris can be removed from the Y-shaped three-way pipe together with the flat-end cutter, avoiding the debris remaining inside the Y-shaped three-way pipe and affecting the subsequent processing procedures.

[0030] [[ID=⑨]]5. Since the locking block is composed of an elastic part in contact with the flat-end cutter and a metal part in contact with the spline shaft, on the one hand, the setting of the metal part ensures the stability of the installation of the flat-end cutter on the spline shaft. On the other hand, through the installation of the elastic part, when the flat-end cutter moves in the chute of the spline shaft, it also has sufficient stability. Brief Description of the Drawings

[0031] Figure 1 is the overall structural schematic diagram of this Y-shaped three-way pipe flatting machine.

[0032] Figure 2 is the overall structural schematic diagram of the clamping mechanism of the present invention.

[0033] Figure 3 is the present invention Figure 2 The front view direction sectional view of the clamping mechanism in.

[0034] Figure 4 is the overall structural schematic diagram of the flatting mechanism of the present invention.

[0035] Figure 5 is the present invention Figure 4 The partial enlarged schematic diagram at A in.

[0036] In the figure, 10 is the frame; 11 is the control console; 12 is the feeding tray; 13 is the material path; 14 is the track; 15 is the sliding plate; 16 is the first support plate; 17 is the second support plate; 18 is the first cylinder; 19 is the first fixture; 20 is the second fixture; 21 is the bracket; 22 is the drag chain; 23 is the first positioning block; 24 is the placement plate; 25 is the second cylinder; 26 is the pusher plate; 27 is the stop block; 28 is the second positioning block; 29 is the ball box; 30 is the first dust-proof housing; 31 is the servo motor; 32 is the second dust-proof housing; 33 is the spline shaft; 34 is the flat-end cutter; 35 is the through hole; 36 is the locking block; 37 is the pusher cylinder. Detailed implementation manners

[0037] The following are specific embodiments of the present invention and, in combination with the accompanying drawings, further describe the technical solutions of the present invention, but the present invention is not limited to these embodiments.

[0038] As Figure 1 shown, a Y-shaped three-way pipe flat-end machine includes a frame 10, a control console 11, a pusher cylinder 37, a feeding mechanism, a clamping mechanism, and a flat-end mechanism;

[0039] The control console 11, the feeding mechanism, and the clamping mechanism are sequentially arranged on the frame 10 from left to right along the length direction of the frame 10. The flat-end mechanism is also located on the frame 10, and the flat-end mechanism is located behind the feeding mechanism. The number of the flat-end mechanisms is two, and the two flat-end mechanisms are respectively located on the left and right sides of the clamping mechanism, and the two flat-end mechanisms are arranged in a staggered manner. The pusher cylinder 37 is located on the side of the clamping mechanism close to the flat-end mechanism;

[0040] When starting this flat-end machine, the feeding mechanism controls the Y-shaped three-way pipe to be flat-ended to enter the clamping mechanism at a uniform speed. The clamping mechanism positions and clamps the Y-shaped three-way pipe conveyed by the feeding mechanism, and moves the clamped Y-shaped three-way pipe in the direction close to the flat-end mechanism. When the Y-shaped three-way pipe is transported to the flat-end mechanism, the three pipe orifices of the Y-shaped three-way pipe are flat-ended by the two flat-end mechanisms. After the Y-shaped three-way pipe is flat-ended, the clamping mechanism drives the Y-shaped three-way pipe to reset, and the pusher cylinder 37 is used to discharge the Y-shaped three-way pipe from the clamping mechanism during the reset process.

[0041] The feeding mechanism includes a mounting frame arranged on the frame 10. The mounting frame is provided with a feeding tray 12, and an arc-shaped material path 13 is arranged on the side of the feeding tray 12 facing the center line of the frame 10;

[0042] When starting this flat-end machine, the feeding tray 12 on the frame 10 controls the Y-shaped three-way pipe to be flat-ended inside to be conveyed along the material path 13 to the clamping mechanism at a uniform speed for subsequent clamping and flat-ending work.

[0043] The clamping mechanism includes a clamping part close to the feeding mechanism and a pusher part far from the feeding mechanism.

[0044] The clamping part of the clamping mechanism includes a track 14 arranged on the frame 10. A sliding plate 15 is slidably connected to the track 14. A first fixture 19 and a first support plate 16 are detachably arranged on the sliding plate 15. The first support plate 16 is located behind the first fixture 19. A second support plate is arranged on the side of the first support plate facing the feeding mechanism. A first cylinder 18 is arranged on the side of the second support plate away from the feeding mechanism. A second fixture 20 cooperating with the first fixture 19 is arranged on the piston rod of the first cylinder 18. A bracket 21 is further arranged at one end of the first support plate 16 away from the second support plate 17. A drag chain 22 is arranged on the bracket 21.

[0045] The pushing part of the clamping mechanism includes a first positioning block 23 arranged on the frame 10. A placement plate 24 is arranged on the first positioning block 23. A second cylinder 25 is arranged on the part of the placement plate 24 away from the feeding mechanism. The piston rod of the second cylinder 25 faces the feeding mechanism. A pushing plate 26 is arranged on the piston rod of the second cylinder 25. A stop block 27 is arranged on the part of the placement plate 24 close to the feeding mechanism.

[0046] When the feeding mechanism conveys the Y-shaped tee to the clamping mechanism, the Y-shaped tee falls on the placement plate 24 via the stop block 27. At this time, the piston rod of the second cylinder 25 pushes the pushing plate 26 to slide in the direction close to the Y-shaped tee, and the Y-shaped tee is pushed towards the first fixture 19 of the clamping part by the pushing plate 26.

[0047] When the Y-shaped tee enters the first fixture 19, the piston rod of the first cylinder 18 pushes the second fixture 20 towards the first fixture 19 and fits with the first fixture 19. The Y-shaped tee is limited by the cooperation between the first fixture 19 and the second fixture 20.

[0048] After the Y-shaped tee is clamped, the drag chain 22 drives the sliding plate 15 to move on the guide rail 14 in the direction close to the flatting mechanism through the bracket 21 to perform the subsequent flatting work on the Y-shaped tee.

[0049] The flatting mechanism includes a power part and a flatting part. The distance between the flatting part and the center line of the frame 10 is less than the distance between the power part and the center line of the frame 10.

[0050] The power part of the flatting mechanism includes a second positioning block 28 arranged on the frame 10. A ball box 29 is arranged on the second positioning block 28. A spline shaft 33 is arranged in the ball box 29. A first dust-proof shell 30 and a second dust-proof shell 32 are successively arranged on the side of the ball box 29 away from the center line of the frame 10. A servo motor for driving the spline shaft 33 to operate is arranged on the first dust-proof shell 30. A flatting part is detachably arranged at one end of the spline shaft 33 close to the center line of the frame 10.

[0051] The flat mouth part includes a chute opened on one side of the spline shaft 33 close to the center line of the frame 10. The number of chutes is three. Each chute is slidably connected with a flat mouth knife 34 through a spring. The end of the flat mouth knife 34 away from the spline shaft 33 is provided with an inverted chamfer. At least two through holes 35 are opened on each flat mouth knife 34. A locking block 36 for locking the three flat mouth knives 34 is detachably arranged on the spline shaft 33;

[0052] The locking block 36 is composed of an elastic part in contact with the flat mouth knife 34 and a metal part in contact with the spline shaft 33;

[0053] When the clamping mechanism drives the Y-shaped tee to run to the flat mouth mechanism, the servo motor 31 of the flat mouth mechanism starts. The spline shaft 33 of the Confucius drives the flat mouth part to move towards the Y-shaped tee, so that the flat mouth knife 34 enters the pipe orifice of the Y-shaped tee to complete the flat mouth work on the pipe orifice of the Y-shaped tee.

[0054] Since the two flat mouth mechanisms are arranged in a staggered manner on the frame 10, driven by the drag chain 22, when the Y-shaped tee is located at the flat mouth mechanism, the drag chain 22 can control the slide plate 15 to reciprocate on the guide rail 14, so as to realize the flat mouth work of the flat mouth mechanism on the three pipe orifices of the Y-shaped tee;

[0055] Since the flat mouth knife 34 is slidably arranged in the chute of the spline shaft 33 through a spring, in the initial state, the three flat mouth knives 34 are located at positions close to the center line of the spline shaft 33 in the chute, controlling the minimum circumscribed circle diameter of the three flat mouth knives 34, and the end face of the flat mouth knife 34 away from the spline shaft 33 is provided with an inverted chamfer, making it easier for the three flat mouth knives 34 to enter the pipe orifice of the Y-shaped tee, effectively solving the situation that when the pipe orifice of the Y-shaped tee is deformed and the pipe orifice diameter becomes smaller, the flat mouth knife cannot directly enter the pipe orifice and has a hard contact with the pipe orifice, causing damage to the Y-shaped tee, and at the same time ensuring the yield rate of the Y-shaped tee during the flat mouth process. When the flat mouth mechanism is started, the spline shaft 33 of the power part of the flat mouth mechanism rotates to generate centrifugal force. Under the action of the centrifugal force, the flat mouth knife 34 expands towards the direction away from the center line of the spline shaft 33 and contacts the pipe orifice of the Y-shaped tee to complete the flat mouth work of the Y-shaped tee;

[0056] Furthermore, a number of through holes 35 are opened on each flat mouth knife 34. When the flat mouth knife 34 completes the flat mouth of the Y-shaped tee, the number of through holes 35 can accelerate the air circulation on the flat mouth knife 34, improve the cooling speed of the flat mouth knife 34, and avoid the temperature of the flat mouth knife 34 being too high, which affects the material properties of the Y-shaped tee in a high-temperature environment;

[0057] When the flat-end cutter 34 performs flat-ending on the Y-shaped three-way pipe, the debris generated during flat-ending can fall between the three flat-end cutters 34 along a number of through holes 35. On the one hand, it avoids the contact between the debris and the inner wall of the Y-shaped three-way pipe, causing wear to the Y-shaped three-way pipe. On the other hand, after the flat-ending is completed, the debris can be removed from the Y-shaped three-way pipe together with the flat-end cutter 34, avoiding the residue of the debris inside the Y-shaped three-way pipe and affecting the subsequent processing procedures.

[0058] Further, the locking block is composed of an elastic part in contact with the flat-end cutter 34 and a metal part in contact with the spline shaft 33. On the one hand, the setting of the metal part ensures the stability of the installation of the flat-end cutter 34 on the spline shaft 33. On the other hand, through the installation of the elastic part, when the flat-end cutter 34 moves in the chute of the spline shaft 33, it also has sufficient stability.

[0059] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The descriptions in the above embodiments and the specification only illustrate the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of protection required by the present invention. The scope of protection required by the present invention is defined by the appended claims and their equivalents.

Claims

1. A Y-shaped three-way pipe flat mouth machine, characterized in that: It includes a frame (10), a control console (11), a pusher cylinder (37), a feeding mechanism, a clamping mechanism and a flat-mouth mechanism; the control console (11), the feeding mechanism and the clamping mechanism are sequentially arranged on the frame (10) from left to right along the length direction of the frame (10), the flat-mouth mechanism is also located on the frame (10), and the flat-mouth mechanism is located behind the feeding mechanism. The number of the flat-mouth mechanisms is two, and the two flat-mouth mechanisms are respectively located on the left and right sides of the clamping mechanism, and the two flat-mouth mechanisms are arranged in a staggered manner. The pusher cylinder (37) is located on one side of the clamping mechanism close to the flat-mouth mechanism; the clamping mechanism includes a clamping part close to the feeding mechanism and a pusher part far from the feeding mechanism; the clamping part of the clamping mechanism includes a track (14) arranged on the frame (10), a sliding plate (15) is slidably connected to the track (14), a first fixture (19) and a first support plate (16) are detachably arranged on the sliding plate (15), the first support plate (16) is located behind the first fixture (19), a second support plate is arranged on one side of the first support plate facing the feeding mechanism, and a first cylinder (18) is arranged on one side of the second support plate far from the feeding mechanism. A second fixture (20) cooperating with the first fixture (19) is arranged on the piston rod of the first cylinder (18). One end of the first support plate (16) far from the second support plate (17) is also provided with a bracket (21), and a drag chain (22) is arranged on the bracket (21); the flat-mouth mechanism includes a power part and a flat-mouth part, and the distance between the flat-mouth part and the center line of the frame (10) is less than the distance between the power part and the center line of the frame (10); the power part of the flat-mouth mechanism includes a second positioning block (28) arranged on the frame (10), a ball box (29) is arranged on the second positioning block (28), a spline shaft (33) is arranged in the ball box (29), a first dust-proof shell (30) and a second dust-proof shell (32) are sequentially arranged on one side of the ball box (29) far from the center line of the frame (10), and a servo motor for driving the spline shaft (33) to operate is arranged on the first dust-proof shell (30). One end of the spline shaft (33) close to the center line of the frame (10) is detachably provided with a flat-mouth part; the flat-mouth part includes a chute opened on one side of the spline shaft (33) close to the center line of the frame (10), the number of the chutes is three, and a flat-mouth knife (34) is slidably connected to each chute through a spring. One end of the flat-mouth knife (34) far from the spline shaft (33) is provided with an inclined chamfer. At least two through holes (35) are opened on each flat-mouth knife (34), and a locking block (36) for locking the three flat-mouth knives (34) is detachably arranged on the spline shaft (33).

2. The Y-shaped three-way pipe flat mouth machine according to claim 1, characterized in that: The feeding mechanism includes a mounting frame arranged on the frame (10), a feeding tray (12) is arranged on the mounting frame, and an arc-shaped material path (13) is arranged on one side of the feeding tray (12) facing the center line of the frame (10).

3. The Y-shaped three-way pipe flat mouth machine according to claim 1, characterized in that: The material pushing part of the clamping mechanism includes a first positioning block (23) arranged on the frame (10), a placement plate (24) is arranged on the first positioning block (23), a second cylinder (25) is arranged on the part of the placement plate (24) away from the feeding mechanism, the piston rod of the second cylinder (25) faces the feeding mechanism, a material pushing plate (26) is arranged on the piston rod of the second cylinder (25), and a material blocking block (27) is arranged on the part of the placement plate (24) close to the feeding mechanism.

4. The Y-shaped three-way pipe flat mouth machine according to claim 1, characterized in that: The locking block (36) is composed of an elastic part in contact with the flat-end cutter (34) and a metal part in contact with the spline shaft (33).

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