Pre-inspection adjusting mechanism of four-way valve pipe flanging machine

Abstract

The utility model belongs to the technical field of four-way valve pipe flanging equipment, particularly relates to a pre-detection adjusting mechanism of a four-way valve pipe flanging machine, and solves the problem that the position of a D hole cannot be detected and the orientation of a pipe body cannot be adjusted. The pre-checking adjusting mechanism comprises a rack, a pre-checking material carrying table is arranged on the rack, a material carrying groove matched with the outer diameter of the four-way valve pipe is formed in the pre-checking material carrying table, a rotary abutting structure is arranged on the downstream side of the pre-checking material carrying table, and a pushing and feeding structure is arranged on the upstream side of the pre-checking material carrying table and used for conveying the four-way valve pipe to the pre-checking material carrying table. The front end of the four-way valve pipe is in friction connection with the rotating face of the rotating abutting structure, the side portion of the four-way valve pipe is provided with at least three sets of penetrating detection assemblies opposite to the E hole, the S hole and the C hole in the radial direction, and the rack is further provided with a steering adjusting mechanism used for adjusting the orientation of the four-way valve pipe according to the detection result of the penetrating detection assemblies for the position of the D hole. The effects that the position of the D hole can be accurately detected, and the direction of the pipe body is adjusted to the position of the D hole to correspond to a follow-up flanging mechanism are achieved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to four -way valve pipe flanging equipment technical field, especially relates to a kind of pre-inspection adjusting mechanism of four-way valve pipe flanging machine. BACKGROUND

[0002] Four-way valve is a kind of control valve with four oil ports, widely used in refrigeration equipment, its main body is generally cylindrical four-way valve pipe, four-way valve pipe side has E, S, C three holes, the other side is provided with D hole, and the position of D hole of different types of four-way valve pipe is not unique, it can be arranged in the middle, i.e.

[0003] In the four-way valve pipe flanging machine of prior art, most cannot quickly detect the position of D hole, and cannot adjust the corresponding rotation of four-way valve pipe with offset D hole to ensure the unity of D hole position, since the flanging mechanism for D hole flanging generally has two stations of centering and offsetting to one side, if D hole position is located at the opposite side of flanging mechanism, it is obviously impossible to ensure the smooth flanging processing of D hole. INNOVATION CONTENT

[0004] The utility model aims at the above-mentioned problems existing in prior art, and provides a kind of pre-inspection adjusting mechanism of four-way valve pipe flanging machine.

[0005] In order to realize the purpose of the utility model, the following technical solutions can be used:

[0006] A kind of pre-inspection adjusting mechanism of four-way valve pipe flanging machine, including rack, the rack is equipped with pre-inspection loading platform, the pre-inspection loading platform is equipped with the loading groove suitable for the outer diameter of four-way valve pipe, the downstream side of the pre-inspection loading platform is equipped with rotating abutment structure, and the upstream side is equipped with push-feeding structure, for sending four-way valve pipe to pre-inspection loading platform, and make the front end and the rotating surface of rotating abutment structure friction connection, the side of the four-way valve pipe is equipped with at least three groups of respectively with its E, S, C hole radial opposite through detection component, the rack is also equipped with steering adjusting mechanism, for adjusting the orientation of four-way valve pipe according to the detection result of through detection component to D hole position.

[0007] The pre-inspection and adjustment mechanism of this utility model is used to perform corresponding inspections and adjustments on a four-way valve pipe. The four-way valve pipe has four holes: E, S, C, and D. The holes E, S, and C are evenly arranged axially on one side of the pipe body, and the hole D is located on the opposite side. The S hole is in the center, and the E and C holes are located at both ends. However, the position of the D hole varies depending on the style of the four-way valve pipe. It may be centered and directly opposite the S hole, or it may be offset and opposite the E and C holes. This pre-inspection and adjustment mechanism first inspects the position and continuity of the four holes, and then adjusts the four-way valve pipe according to the position of the D hole. It is particularly used to rotate and adjust the four-way valve pipe with the D hole offset so that the D hole is located on a uniform front or rear side, ensuring smooth cooperation with the subsequent D hole flange structure. The pre-inspection loading platform is used to carry the four-way valve tube to be processed. The loading groove can achieve a good positioning effect. The jacking and pushing structure is used to push the four-way valve tube onto the pre-inspection loading platform and has a feeding function. At the same time, the end of the four-way valve tube can be pressed against the rotating surface. The rotating surface and the end of the four-way valve tube are rubbed together. The rotating abutment structure is used to drive the four-way valve tube to rotate circumferentially, ensuring that the through detection component completes at least 360 degrees of circumferential detection on the four-way valve tube. The through detection component is used to realize the specific detection function. The steering adjustment mechanism is used to grab the four-way valve tube and make corresponding 180-degree steering adjustments when needed.

[0008] In the pre-inspection and adjustment mechanism of the four-way valve pipe flanging machine, the rotating abutment structure includes an abutment platform. A rotating disk is rotatably connected to the abutment platform near the pre-inspection loading platform. The rotating disk is driven to rotate by a rotating drive assembly, and the rotating surface is formed on the rotating disk.

[0009] The rotary disk is rotatably connected to the inner side of the pre-inspection loading platform. The rotary drive assembly includes a first motor mounted on the frame. The output end of the first motor is connected to the rotary disk for driving the rotation of the rotary disk, thereby driving the rotation of the four-way valve pipe that is driven by friction.

[0010] In the pre-inspection and adjustment mechanism of the four-way valve pipe flanging machine, the rotating surface is provided with a docking groove or docking boss that is adapted to the diameter of the four-way valve pipe, and the outer edge of the docking groove and the outer periphery of the docking boss are provided with easy-entry guide angles.

[0011] The mating groove and mating boss on the rotating surface can be mated with the four-way valve pipe. The easy-entry guide angle is used for guidance. After the mating is completed, the rotating surface and the axis of the four-way valve pipe coincide, ensuring the stable rotation of the four-way valve pipe.

[0012] In the pre-inspection and adjustment mechanism of the four-way valve pipe flanging machine mentioned above, the through-detection component includes a laser detector. The laser detector is fixed on the frame and is radially oriented toward the four-way valve pipe in a one-to-one correspondence with holes E, S, and C. It is used to detect the qualification status of holes E, S, C, and D, as well as the position of hole D.

[0013] The penetration detection component is specifically implemented using a laser detector. The laser detector emits a radial laser beam into the four-way valve tube, and its receiver receives the reflected light. Based on the reflection, the status of each hole is determined. For example, when the laser shines on holes E, S, and C, the laser beam is reflected from the inner wall of the four-way valve tube, increasing the reflection distance and correspondingly weakening the received reflection intensity. This can be used to detect the position of these three holes. When hole D is aligned with the middle hole S, the laser emitted by the middle group of laser detectors completely penetrates the four-way valve tube, further increasing the reflection distance. At this point, the position of hole D can be determined. The structure and principle of the laser detector's laser emission and reflection reception are common knowledge and will not be elaborated upon.

[0014] In the pre-inspection and adjustment mechanism of the four-way valve pipe flanging machine mentioned above, the steering adjustment mechanism includes a gripper assembly and a gripper lifting structure disposed between the gripper assembly and the frame, and a rotating structure is provided between the gripper assembly and the gripper lifting structure.

[0015] The gripper assembly is used to specifically grasp the four-way valve pipe. The gripper lifting structure is used to drive the lifting and lowering action of the gripper assembly. When lowering, it grasps or places the four-way valve pipe; when rising, it raises the four-way valve pipe to a suitable position to ensure smooth rotation of the four-way valve pipe. The rotating structure is used to specifically rotate the gripper assembly, thereby achieving the purpose of rotating the four-way valve pipe. Its rotation angle is in units of 180 degrees. Specifically, the gripper assembly includes a gripper cylinder. The output end of the gripper cylinder is provided with a set of arc-shaped claws that can be relatively closed or moved away. The inner arc of the arc-shaped claws is adapted to the outer diameter of the four-way valve pipe. The gripper cylinder is common knowledge and will not be elaborated on in detail.

[0016] In the pre-inspection and adjustment mechanism of the above-mentioned four-way valve pipe flanging machine, the gripper lifting structure includes a lifting slide table set on the frame, and a first linear driver is vertically set on the frame, the output end of the first linear driver being connected to the lifting slide table.

[0017] The rotating structure includes a drive rack that passes through the lifting slide. The drive rack is driven by a second linear actuator to move axially. A rotating mounting shaft is vertically rotatably connected to the lifting slide. A drive gear that meshes with the drive rack is sleeved on the rotating mounting shaft. The gripper assembly is provided on the rotating mounting shaft.

[0018] The lifting slide can be vertically lifted and lowered on the frame. The first linear drive is used to drive the lifting and lowering action of the lifting slide. The lifting slide is equipped with a rotary mounting shaft. The second linear drive is used to pull the axial movement of the drive rack, thereby realizing the rotation of the drive gear meshing with it. The drive gear drives the rotary mounting shaft to rotate, thereby realizing the effect of rotating the four-way valve pipe.

[0019] In the pre-inspection and adjustment mechanism of the four-way valve pipe flanging machine, the gripper lifting structure is set on the translation slide, the translation slide is slidably connected to the frame and is driven by the translation drive structure to move, and is used to transfer the four-way valve pipe to the waiting platform after the gripper assembly grabs it.

[0020] The gripper lifting structure is also mounted on the translation slide. The translation drive structure drives the translation slide to move, which can grab the four-way valve pipe from the pre-inspection loading platform and move it to the waiting loading platform. The rotation of the four-way valve pipe can be performed on the waiting loading platform, avoiding interference with the pre-inspection related structures. It also facilitates the simultaneous loading, pre-inspection, and steering adjustment of two four-way valve pipes, improving processing efficiency. The translation drive structure includes a fourth linear actuator mounted on the frame, and the output end of the fourth linear actuator is connected to the translation slide.

[0021] In the pre-inspection and adjustment mechanism of the above-mentioned four-way valve pipe flanging machine, the waiting platform can be vertically flipped and hinged to the frame. The frame is equipped with a third linear drive. The output end of the third linear drive is connected to the rotating end of the waiting platform and is used to push the rotating end to tilt the waiting platform to remove the material.

[0022] Alternatively, the frame may be equipped with a circumferential drive, which is connected to the hinge shaft of the material-holding platform to rotate the material-holding platform to tilt for material rejection.

[0023] The waiting platform also has a material rejection function. One end is hinged to the frame, and the other end can be raised vertically to an inclined state. The inclined rejection side is connected to the NG material basket. Due to the height difference, the four-way valve pipe can slide into the NG material basket to collect the NG material. The rotation of the waiting platform can be achieved by the third linear drive, which lifts the rotating end of the waiting platform through the output end of the third linear drive to achieve rotation control. Alternatively, it can be achieved by the circumferential drive, which drives the rotation of the hinge shaft to directly achieve the rotation control of the waiting platform.

[0024] In the pre-inspection and adjustment mechanism of the above-mentioned four-way valve pipe flanging machine, the frame is provided with a feeding slide that docks with the pre-inspection loading platform. The top pushing structure includes a top material rod that moves axially within the feeding slide. The top material rod is set on a translation slide. The translation slide is slidably connected to the frame and is driven to translate by the translation drive structure.

[0025] The upstream side of the pre-inspection loading platform is equipped with a feeding slide, which is located on the same straight line as the loading groove. The top rod is driven by the translation drive structure to move axially within the feeding slide, which is used to push the upstream four-way valve pipe toward the pre-inspection loading platform to realize automatic feeding.

[0026] In the pre-inspection and adjustment mechanism of the four-way valve pipe flanging machine, the top material rod is provided with a top material head at one end near the pre-inspection loading platform. The top material head is provided with a positioning cone surface or guide groove that is adapted to the diameter of the four-way valve pipe. The top material head is rotatably connected to the mounting column at the end of the top material rod, and a bearing assembly is provided between the top material head and the top material rod.

[0027] The top of the top rod is equipped with a top head, which abuts against the rear end of the four-way valve tube. The bearing assembly allows the top head to rotate freely relative to the top rod, ensuring the smooth rotation of the four-way valve tube driven by the rotating abutment structure. The positioning cone or guide groove on the top head is used to connect with the end of the four-way valve tube to ensure stable pushing.

[0028] As an optimization, a buffer elastic element is provided between the top material head and the top material rod, and the two ends of the buffer elastic element abut against the inner end face of the top material head and the limiting step on the inner side of the mounting column, respectively; the bearing assembly includes a plane bearing, and the buffer elastic element is sleeved on the mounting column, with its two ends abutting against the inner end face of the top material head and the inner ring of the plane bearing, respectively.

[0029] The elastic buffer allows the ejector head to have a certain axial elastic expansion and contraction space, which reduces the requirements for the movement accuracy of the ejector rod and avoids the ejector rod being directly stopped and the related components being damaged by impacts to the rotating contact structure.

[0030] Of course, this device is also connected to a control terminal. The control terminal can determine the position of the D hole and the corresponding qualification status based on the corresponding detection signals, and control the corresponding rotation adjustment or tilting and material removal actions. The control terminal is common knowledge and will not be elaborated further.

[0031] Compared with the prior art, the present invention has the following main advantages:

[0032] 1. This pre-inspection and adjustment mechanism is used to perform corresponding inspections and adjustments on the four-way valve pipe. Specifically, it can inspect the position and continuity of the four holes, and can also be used to rotate and adjust the four-way valve pipe with the D hole offset so that the D hole is located on the front or back side in a uniform state, to ensure smooth cooperation with the subsequent D hole flange structure.

[0033] 2. The penetration detection component is specifically implemented through a laser detector, which determines the qualification status of each hole and the position of hole D based on the reflection.

[0034] 3. The material receiving platform also has a material rejection function. One end is hinged to the frame, and the other end can be raised vertically to an inclined state. The inclined rejection side is connected to the NG material basket. Due to the height difference, the four-way valve pipe can slide into the NG material basket to collect the NG material.

[0035] 4. The end of the top material rod is equipped with a top material head, which abuts against the rear end of the four-way valve pipe. The bearing assembly allows the top material head to rotate freely relative to the top material rod, ensuring the smooth rotation of the four-way valve pipe driven by the rotating abutment structure. Attached Figure Description

[0036] Figure 1 This is a schematic diagram of the pre-inspection and adjustment mechanism provided by this utility model installed on a four-way valve pipe flanging machine;

[0037] Figure 2 This is a schematic diagram of the pre-inspection and adjustment mechanism provided by this utility model;

[0038] Figure 3 This is a schematic diagram of the rotating structure provided by this utility model;

[0039] Figure 4 This is a schematic diagram showing the position of the material-carrying platform and the third linear actuator provided by this utility model.

[0040] Figure 5 This is a schematic diagram of the structure of the top material rod provided by this utility model;

[0041] Figure 6 This is a front view schematic diagram of the four-way valve pipe provided by this utility model.

[0042] In the diagram, frame 200, four-way valve pipe 201, S-hole 202, and D-hole 203 are shown.

[0043] 1. Pre-inspection loading platform; 2. Loading groove; 3. Rotary abutment structure; 4. Top-pushing structure; 5. Penetration detection component; 6. Abutment platform; 7. Rotary disk; 8. Rotary drive component; 9. Laser detector; 10. Steering adjustment mechanism; 11. Gripper assembly; 12. Gripper lifting structure; 13. Rotating structure; 14. Gripper cylinder; 15. Arc-shaped gripper body; 16. Lifting slide; 17. First linear actuator; 18. Drive rack; 19. Second linear actuator; 20. Rotary mounting shaft; 21. Drive gear; 22. Translation slide; 23. Waiting platform; 24. Translation drive structure; 25. Fourth linear actuator; 26. Third linear actuator; 27. Feed slide; 28. Top rod; 29. ​​Top head; 30. Positioning cone surface. Detailed Implementation

[0044] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0045] Specific implementation examples Figures 1-6As shown, the pre-inspection and adjustment mechanism of this four-way valve tube flanging machine includes a frame 200. A pre-inspection loading platform 1 is provided on the frame 200. The pre-inspection loading platform 1 is provided with a loading groove 2 adapted to the outer diameter of the four-way valve tube. A rotating abutment structure 3 is provided on the downstream side of the pre-inspection loading platform 1, and a pushing material structure 4 is provided on the upstream side. These structures are used to send the four-way valve tube onto the pre-inspection loading platform 1 and to make the front end rub against the rotating surface of the rotating abutment structure 3. At least three sets of through detection components 5 are provided on the side of the four-way valve tube, which are radially opposite to its E, S, and C holes respectively. A steering adjustment mechanism 10 is also provided on the frame 200 to adjust the orientation of the four-way valve tube according to the detection results of the through detection components 5 for the D hole position.

[0046] Specifically, the pre-inspection and adjustment mechanism of this utility model is used to perform corresponding inspections and adjustments on the four-way valve pipe. The four-way valve pipe is provided with four holes: E, S, C, and D. The holes E, S, and C are evenly arranged axially on one side of the pipe body, and the hole D is set on the opposite side. The S hole 202 is in the center, and the E and C holes are at opposite ends. The position of the D hole 203 is different for different styles of four-way valve pipes. It may be set in the center, directly opposite the S hole 202, or it may be offset, opposite the E and C holes. This pre-inspection and adjustment mechanism first inspects the position and continuity of the four holes, and then adjusts the four-way valve pipe according to the position of the D hole obtained from the inspection. It is especially used to rotate and adjust the four-way valve pipe with the D hole offset so that the D hole is located on the front or back side in a uniform manner, so as to ensure smooth cooperation with the subsequent D hole flange structure. Among them, the pre-inspection loading platform 1 is used to carry the four-way valve tube to be processed, the loading groove 2 can achieve a good positioning effect, the pushing and pushing structure is used to push the four-way valve tube onto the pre-inspection loading platform 1, which has a feeding function. At the same time, the end of the four-way valve tube can be pushed against the rotating surface, and the rotating surface and the end of the four-way valve tube are rubbed together. The rotating abutment structure 3 is used to drive the four-way valve tube to rotate circumferentially, ensuring that the through detection component 5 completes at least 360 degrees of circumferential detection on the four-way valve tube. The through detection component 5 is used to realize the specific detection function. The steering adjustment mechanism 10 is used to grab the four-way valve tube and make corresponding 180-degree steering adjustments when needed.

[0047] like Figure 2 As shown, the rotating abutment structure 3 includes an abutment platform 6. A rotating disk 7 is rotatably connected to the abutment platform 6 near the pre-inspection loading platform 1. The rotating disk 7 is driven to rotate by a rotating drive assembly 8, and a rotating surface is formed on the rotating disk 7. A mating boss adapted to the diameter of the four-way valve pipe is provided on the rotating surface, and an easy-entry guide angle is provided on the outer periphery of the mating boss.

[0048] Specifically, the rotary disk 7 is rotatably connected to the inner side of the pre-inspection loading platform 1. The rotary drive assembly 8 includes a first motor mounted on the frame 200. The output end of the first motor is connected to the rotary disk 7 for driving the rotation of the rotary disk 7, thereby driving the rotation of the four-way valve pipe that is driven by friction. The docking boss can dock with the four-way valve pipe, and the easy-entry guide angle is used for guidance. After docking, the rotating surface and the axis of the four-way valve pipe coincide, ensuring the stable rotation of the four-way valve pipe.

[0049] like Figure 2 As shown, the through-detection assembly 5 includes a laser detector 9, which is fixed on the frame 200 and radially oriented toward the four-way valve tube in a one-to-one correspondence with holes E, S, and C. It is used to detect the qualification status of holes E, S, C, and D, as well as the position of hole D.

[0050] Specifically, the penetration detection component 5 is implemented through a laser detector 9. The laser detector 9 emits a radial laser beam into the four-way valve tube, and its receiver receives the reflected light. Based on the reflection, the status of each hole is determined. For example, when the laser beam irradiates the positions of holes E, S, and C, the laser beam is reflected by the inner wall of the four-way valve tube, increasing the reflection distance and correspondingly weakening the received reflection intensity. This can be used to detect the position of the three holes. When hole D is opposite to the middle hole S, the laser beam emitted by the laser detector 9 in the middle group completely penetrates the four-way valve tube, further increasing the reflection distance. At this time, the position of hole D can be determined.

[0051] like Figure 2 , 3 As shown, the steering adjustment mechanism 10 includes a gripper assembly 11 and a gripper lifting structure 12 disposed between the gripper assembly 11 and the frame 200. A rotating structure 13 is provided between the gripper assembly 11 and the gripper lifting structure 12. The gripper lifting structure 12 includes a lifting slide 16 disposed on the frame 200. A first linear actuator 17 is vertically disposed on the frame 200, and the output end of the first linear actuator 17 is connected to the lifting slide 16.

[0052] The rotating structure 13 includes a drive rack 18 passing through the lifting slide 16. The drive rack 18 is driven by the second linear actuator 19 to move axially. A rotating mounting shaft 20 is vertically rotatably connected to the lifting slide 16. A drive gear 21 that meshes with the drive rack 18 is sleeved on the rotating mounting shaft 20. A gripper assembly 11 is provided on the rotating mounting shaft 20. The gripper lifting structure 12 is provided on the translation slide 22. The translation slide 22 is slidably connected to the frame 200 and is driven to move by the translation drive structure 24. It is used to transfer the four-way valve pipe to the waiting platform 23 after the gripper assembly 11 has gripped it.

[0053] Specifically, the gripper assembly 11 is used to grip the four-way valve pipe, and the gripper lifting structure 12 is used to drive the lifting action of the gripper assembly 11. When lowering, it grips or places the four-way valve pipe, and when rising, it raises the four-way valve pipe to a suitable position to ensure the smooth rotation of the four-way valve pipe. The rotating structure 13 is used to rotate the gripper assembly 11, thereby achieving the purpose of rotating the four-way valve pipe. Its rotation angle is in units of 180 degrees. Specifically, the gripper assembly 11 includes a gripper cylinder 14. The output end of the gripper cylinder 14 is provided with a set of arc-shaped claw bodies 15 that can be relatively closed or moved away. The inner arc of the arc-shaped claw body 15 is adapted to the outer diameter of the four-way valve pipe. The lifting slide 16 is vertically and vertically mounted on the frame 200. The first linear driver 17 is used to drive the lifting action of the lifting slide 16. The lifting slide 16 is provided with a rotary mounting shaft 20. The second linear driver 19 is used to pull the axial movement of the drive rack 18, thereby realizing the rotation of the drive gear 21 meshing with it. The drive gear 21 drives the rotary mounting shaft 20 to rotate, thereby realizing the effect of rotating the four-way valve pipe. The gripper lifting structure 12 is also mounted on the translation slide 22. The translation drive structure 24 drives the translation slide 22 to move in translation, which can grab the four-way valve pipe from the pre-inspection loading platform 1 and move it to the waiting loading platform 23. The translation drive structure 24 includes a fourth linear driver 25 mounted on the frame 200. The output end of the fourth linear driver 25 is connected to the translation slide 22. The rotation of the four-way valve pipe can be performed on the waiting loading platform 23, avoiding interference with the pre-inspection related structures. It also facilitates the simultaneous loading, pre-inspection and steering adjustment of two four-way valve pipes, improving processing efficiency.

[0054] like Figure 4 As shown, the material-carrying platform 23 is vertically hinged to the frame 200. The frame 200 is provided with a third linear driver 26. The output end of the third linear driver 26 is connected to the rotating end of the material-carrying platform 23, and is used to push the rotating end to tilt the material-carrying platform 23 to remove material.

[0055] Specifically, the material-waiting platform 23 also has a material-removing function. One end of it is hinged to the frame 200, and the other end can be raised vertically to an inclined state. The inclined material-removing side is connected to the NG material basket. Due to the height difference, the four-way valve pipe can slide into the NG material basket to collect the NG material. The rotation of the material-waiting platform 23 is achieved by the third linear drive 26. The rotation control is achieved by lifting the rotating end of the material-waiting platform 23 through the output end of the third linear drive 26.

[0056] As an optimization, the frame 200 is provided with a feeding slide 27 that docks with the pre-inspection loading platform 1. The top-pushing structure 4 includes a top-push rod 28 that moves axially within the feeding slide 27. The top-push rod 28 is mounted on a translation slide 22, which is slidably connected to the frame 200 and is driven to move by the translation drive structure 24. One end of the top-push rod 28 near the pre-inspection loading platform 1 is provided with a top-push head 29. The top-push head 29 is provided with a positioning cone surface 30 adapted to the diameter of the four-way valve pipe. The top-push head 29 is rotatably connected to the mounting column at the end of the top-push rod 28. A bearing assembly is provided between the top-push head 29 and the top-push rod 28. A buffer elastic element is provided between the ejector head 29 and the ejector rod 28. The two ends of the buffer elastic element abut against the inner end face of the ejector head 29 and the limiting step on the inner side of the mounting column, respectively. The bearing assembly includes a flat bearing. The buffer elastic element is sleeved on the mounting column, and its two ends abut against the inner end face of the ejector head 29 and the inner ring of the flat bearing, respectively.

[0057] Specifically, a feeding chute 27 is provided on the upstream side of the pre-inspection loading platform 1. This chute is located on the same straight line as the loading groove 2. The ejector rod 28 is driven axially within the feeding chute 27 by the translation drive structure 24 to push the upstream four-way valve pipe towards the pre-inspection loading platform 1, thereby achieving automatic feeding. An ejector head 29 is provided at the end of the ejector rod 28. The ejector head 29 abuts against the rear end of the four-way valve pipe. A bearing assembly allows the ejector head 29 to rotate freely relative to the ejector rod 28, ensuring smooth rotation of the four-way valve pipe driven by the rotation abutment structure 3. The positioning cone surface 30 on the ejector head 29 is used to mate with the end of the four-way valve pipe, ensuring stable pushing. An elastic buffer provides the ejector head 29 with a certain axial elastic expansion and contraction space, reducing the requirements for the movement accuracy of the ejector rod 28 and preventing damage to related components caused by the ejector rod 28 being directly stopped or by impact to the rotation abutment structure 3.

[0058] Specific working principle: The four-way valve tube 201 rolls from the storage mechanism to the upstream end of the feed chute 27. The push rod 28 pushes the four-way valve tube 201 onto the pre-inspection loading platform 1 through the push head 29. The front end of the four-way valve tube 201 abuts against the rotating disk 7. Then, the rotating disk 7 drives the four-way valve tube 201 to rotate. The laser detector 9 emits a laser to irradiate the predetermined positions of the three holes, judging the qualification status of the three holes and the position of the D hole 203. After the inspection is completed, the push rod 28 reverses to reset, and at the same time, the gripper assembly 11 moves towards the four-way valve tube 201 and grabs the four-way valve tube. 201. Move backward and, above the waiting platform 23, determine whether the four-way valve tube 201 matches the preset four-way valve tube type and the actual position of the D hole 203, and whether rotation is required. If rotation is required, the gripper assembly 11 will rotate the four-way valve tube 201 180 degrees. After adjustment, place it on the waiting platform 23. If the detection result is that the four-way valve tube 201 is unqualified or the position of the D hole 203 does not match the preset value regarding whether it is centered, it is considered NG material. At this time, the waiting platform 23 will rotate to tilt, and the four-way valve tube 201 will slide into the NG material basket.

[0059] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

Claims

1. A pre-inspection adjustment mechanism for a four-way valve pipe flanging machine, comprising a frame (200), wherein a pre-inspection loading platform (1) is provided on the frame (200), and the pre-inspection loading platform (1) is provided with a loading groove (2) adapted to the outer diameter of the four-way valve pipe, characterized in that, The downstream side of the pre-inspection loading platform (1) is provided with a rotating abutment structure (3), and the upstream side is provided with a pushing material structure (4), which is used to send the four-way valve pipe onto the pre-inspection loading platform (1) and make the front end rub against the rotating surface of the rotating abutment structure (3). The side of the four-way valve pipe is provided with at least three sets of penetration detection components (5) that are radially opposite to its E, S and C holes respectively. The frame (200) is also provided with a steering adjustment mechanism (10), which is used to adjust the orientation of the four-way valve pipe according to the detection result of the penetration detection component (5) for the D hole position.

2. The pre-inspection and adjustment mechanism of the four-way valve pipe flanging machine according to claim 1, characterized in that, The rotating contact structure (3) includes a contact platform (6), and a rotating disk (7) is rotatably connected to the contact platform (6) near the pre-inspection loading platform (1). The rotating disk (7) is driven to rotate by a rotating drive assembly (8), and the rotating surface is formed on the rotating disk (7).

3. The pre-inspection and adjustment mechanism of the four-way valve pipe flanging machine according to claim 2, characterized in that, The rotating surface is provided with a mating groove or mating boss that is adapted to the diameter of the four-way valve pipe, and the outer edge of the mating groove and the outer periphery of the mating boss are provided with easy-entry guide angles.

4. The pre-inspection and adjustment mechanism of the four-way valve pipe flanging machine according to claim 1, characterized in that, The penetration detection component (5) includes a laser detector (9), which is fixed on the frame (200) and is radially oriented toward the four-way valve tube in a one-to-one correspondence with holes E, S, and C, and is used to detect the qualification status of holes E, S, C, and D and the position of hole D.

5. The pre-inspection and adjustment mechanism of the four-way valve pipe flanging machine according to claim 1, characterized in that, The steering adjustment mechanism (10) includes a gripper assembly (11) and a gripper lifting structure (12) disposed between the gripper assembly (11) and the frame (200), and a rotating structure (13) is provided between the gripper assembly (11) and the gripper lifting structure (12).

6. The pre-inspection and adjustment mechanism of the four-way valve pipe flanging machine according to claim 5, characterized in that, The gripper lifting structure (12) includes a lifting slide (16) mounted on a frame (200), and a first linear driver (17) is vertically mounted on the frame (200). The output end of the first linear driver (17) is connected to the lifting slide (16). The rotating structure (13) includes a drive rack (18) passing through the lifting slide (16). The drive rack (18) is driven by the second linear actuator (19) to move axially. A rotating mounting shaft (20) is vertically rotatably connected to the lifting slide (16). A drive gear (21) meshing with the drive rack (18) is sleeved on the rotating mounting shaft (20). The gripper assembly (11) is provided on the rotating mounting shaft (20).

7. The pre-inspection and adjustment mechanism of the four-way valve pipe flanging machine according to claim 5, characterized in that, The gripper lifting structure (12) is mounted on the translation slide (22), which is slidably connected to the frame (200) and is driven to move by the translation drive structure (24) to transfer the gripper assembly (11) to the loading platform (23) after it has gripped the four-way valve pipe.

8. The pre-inspection and adjustment mechanism of the four-way valve pipe flanging machine according to claim 7, characterized in that, The material-carrying platform (23) can be vertically flipped and hinged to the frame (200). The frame (200) is provided with a third linear driver (26). The output end of the third linear driver (26) is connected to the rotating end of the material-carrying platform (23) and is used to push the rotating end to tilt the material-carrying platform (23) to remove the material. Alternatively, the frame (200) is provided with a circumferential drive, which is connected to the hinge shaft of the material receiving platform (23) for rotating the material receiving platform (23) to tilt to remove material.

9. The pre-inspection and adjustment mechanism of the four-way valve pipe flanging machine according to any one of claims 1-8, characterized in that, The frame (200) is provided with a feeding slide (27) that connects with the pre-inspection loading platform (1). The top pushing structure (4) includes a top pushing rod (28) that moves axially within the feeding slide (27). The top pushing rod (28) is set on the translation slide (22).

10. The pre-inspection and adjustment mechanism of the four-way valve pipe flanging machine according to claim 9, characterized in that, The top material rod (28) is provided with a top material head (29) at one end near the pre-inspection loading platform (1). The top material head (29) is provided with a positioning cone surface (30) or a guide groove that is adapted to the diameter of the four-way valve pipe. The top material head (29) is rotatably connected to the mounting post at the end of the top material rod (28), and a bearing assembly is provided between the top material head (29) and the top material rod (28).

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