A plug assembly device for metal connecting pipe production

Abstract

The present application relates to a plug assembly device for the production of metal connecting pipes, comprising: a loading unit provides a target plug; a conveying unit conveys at least one target plug provided by the loading unit to the end of the conveying unit; a third moving unit moves at least one target plug at the end of the conveying unit to a gripping mechanism one by one; the gripping mechanism grabs the target plug, and the grabbed target plug moves from a first position to a second position; the first moving unit moves the target plug from the second position to a third position; the clamping unit clamps the target metal connecting pipe to move from a fourth position to a fifth position; when the target plug is in the second position or the third position, and the target metal connecting pipe is in the fourth position or the fifth position, the target plug is coaxial with the target metal connecting pipe. The present application solves the problem of low automation and low production efficiency caused by the need for workers to manually install the plug during the plugging process in the production process of the metal connecting pipes of the indoor and outdoor units of the air conditioner.

Description

Technical Field

[0001] The present application relates to the technical field of air-conditioning production equipment, and in particular to a plug assembly device for metal connecting pipe production. Background Art

[0002] At present, pipe fittings are usually used between the indoor and outdoor units of the air conditioner to ensure the temperature transfer efficiency between the indoor and outdoor units. At the same time, insulation cotton tubes are wrapped outside the pipe fittings to reduce heat loss during the transfer process. The pipe fittings are metal connecting pipes between the indoor and outdoor units of the air conditioner.

[0003] In the production process of the metal connecting pipes of the indoor and outdoor units of the air conditioner, there is a process of sealing the two ends of the metal connecting pipes with protective plugs to ensure that no dust or foreign particles enter the metal connecting pipes during the long-term storage of the finished products after they are put into storage.

[0004] At present, in the production process of most metal connecting pipes for indoor and outdoor units of air conditioners, the sealing operations at both ends of the metal connecting pipes still need to be completed manually, which has a low degree of automation, high labor intensity, low production efficiency, poor product consistency and certain safety risks. Summary of the invention

[0005] The present application mainly solves the problems of low automation, high labor intensity and low production efficiency caused by the need for workers to manually install the plugging heads during the production process of the existing metal connecting pipes of the indoor and outdoor units of air conditioners.

[0006] In an embodiment of the present application, a plug assembly device for metal connecting pipe production is provided, wherein the plug assembly device is used to assemble a target plug for a target metal connecting pipe, wherein the target plug is conical or conical, and includes a large end and a small end, and when the target plug and the target metal connecting pipe are in an assembled state, the small end of the target plug is inserted into the end of the target metal connecting pipe, and the plug assembly device includes a feeding unit, a conveying unit, a gripper mechanism, a third moving unit, a first moving unit, a second moving unit, and a clamping unit;

[0007] The feeding unit is used to provide at least one target plug;

[0008] The front end and the rear end of the conveying unit are respectively connected to the loading unit and the third moving unit, and are used to convey at least one target plug provided by the loading unit to the rear end of the conveying unit;

[0009] The third moving unit is arranged directly below the gripper mechanism, and is used to move at least one target plug at the end of the conveying unit to the gripper mechanism one by one;

[0010] The gripper mechanism is used to grab the target plug, and the grabbed target plug moves from the first position to the second position; when the target plug is in the first position, the axis of the target plug is in the vertical direction; when the target plug is in the second position, the axis of the target plug is in the horizontal direction;

[0011] The gripping mechanism is arranged on the first moving unit, and the first moving unit is used to drive the gripping mechanism to move in a horizontal direction, so that the target plug moves from the second position to the third position;

[0012] The clamping unit is used to clamp the target metal connecting pipe; when the target metal connecting pipe is clamped by the clamping unit, the target metal connecting pipe is horizontally arranged;

[0013] The clamping unit is arranged on the second moving unit, and the second moving unit is used to drive the clamping unit to move in a horizontal direction, so that the target metal connecting pipe moves from the fourth position to the fifth position;

[0014] When the target plug is in the second position or the third position, and the target metal connecting pipe is in the fourth position or the fifth position, the target plug is coaxial with the target metal connecting pipe.

[0015] In the above-mentioned plug assembly device for metal connecting pipe production, as a preferred embodiment, the plug assembly device further includes a first bottom plate and a second bottom plate;

[0016] The first bottom plate and the second bottom plate are both fixedly arranged on the base, and the base is fixedly arranged;

[0017] The first movable unit and the second movable unit are respectively arranged on the first bottom plate and the second bottom plate, the first movable unit can move in a horizontal straight direction along the first bottom plate, and the second movable unit can move in a horizontal straight direction along the second bottom plate, and the moving directions of the first movable unit and the second movable unit are parallel.

[0018] In the above-mentioned plug assembly device for metal connecting pipe production, as a preferred embodiment, the gripper mechanism includes a second rotary cylinder and a gripper mounting platform;

[0019] The second rotary cylinder is arranged on the first moving unit, and the execution end of the second rotary cylinder is detachably connected to the gripper mounting platform, and at least one gripper unit is installed on the gripper mounting platform, and the gripper unit is used to grab the target plug;

[0020] When at least one gripper unit moves along with the stroke of the gripper mounting platform and the execution end of the second rotary cylinder, the target plug gripped by the gripper unit moves from the first position to the second position or from the second position to the first position;

[0021] The actuator end of the second rotary cylinder moves in a rotational manner, and the rotational stroke of the actuator end is not less than 90°.

[0022] In the above-mentioned plug assembly device for metal connecting pipe production, as a preferred embodiment, the gripper unit includes a sleeve and at least three arc-shaped fingers;

[0023] One end of the sleeve is detachably connected to the side of the gripper mounting platform, and the other end of the sleeve is open and has at least three straight grooves evenly distributed around the circumference, the straight grooves correspond to the arc-shaped fingers one by one, and a position in the middle of the arc-shaped fingers is rotatably connected to the straight grooves through a rotating shaft;

[0024] The arc-shaped finger is in an arc shape, and the opening direction of the arc-shaped finger is toward the axis of the sleeve;

[0025] The inner diameter of the sleeve is larger than the diameter of the large end of the target plug, the inner curved surfaces of at least three of the upper ends of the arc-shaped fingers have a first tangent circle, and the inner curved surfaces of at least three of the lower ends of the arc-shaped fingers have a second tangent circle, and the first tangent circle diameter and the second tangent circle diameter are not larger than the diameter of the large end of the target plug at the same time.

[0026] In the above-mentioned plug assembly device for metal connecting pipe production, as a preferred embodiment, the arc-shaped finger includes an arc-shaped finger upper portion and an arc-shaped finger lower portion;

[0027] The length of the upper part of the arc-shaped finger is greater than the length of the lower part of the arc-shaped finger, and the rotating shaft is arranged between the upper part of the arc-shaped finger and the lower part of the arc-shaped finger;

[0028] An outward expansion portion is arranged at the lower end of the lower portion of the arc-shaped finger, and the outward expansion portion is in an arc shape opposite to the arc shape of the lower portion of the arc-shaped finger.

[0029] In the above-mentioned plug assembly device for metal connecting pipe production, as a preferred embodiment, the number of the arc-shaped fingers is four, and the number of the straight grooves is four.

[0030] In the above-mentioned plug assembly device for metal connecting pipe production, as a preferred embodiment, the execution end of the second rotary cylinder includes a groove wheel, the first end of the gripper mounting platform is provided with a groove having the same shape as the groove wheel, and the second rotary cylinder is connected to the groove at the first end of the gripper mounting platform through the groove wheel;

[0031] The groove wheel includes at least one spline, and at least one fastening bolt is arranged at the second end of the gripper mounting platform. After the at least one fastening bolt passes through the second end of the gripper mounting platform to the first end of the gripper mounting platform, it is threadedly connected to the at least one spline.

[0032] In the above-mentioned plug assembly device for metal connecting pipe production, as a preferred solution, the gripper mounting platform is in the shape of a rectangular parallelepiped, and each side of the gripper mounting platform is equipped with a gripper unit, which are respectively a first gripper, a second gripper, a third gripper and a fourth gripper; the groove wheel includes four splines, the fastening bolts are two, three or four, and each fastening bolt is threadedly connected to one of the splines;

[0033] The splines are evenly distributed on the outer circumference of the groove wheel.

[0034] In the above-mentioned plug assembly device for metal connecting pipe production, as a preferred solution, the third mobile unit is installed on the base through the second support, and the third mobile unit includes a sensor, a lifting cylinder and a lifting column;

[0035] The sensor is arranged on the second support and is used to detect whether there is a target blockage at the end of the conveying unit;

[0036] The lifting cylinder is fixedly mounted on the second supporting side surface, and the piston rod of the lifting cylinder is vertically arranged upward and is located directly below the end of the conveying unit;

[0037] The lifting column is arranged at the end of the piston rod of the lifting cylinder. When the lifting cylinder is actuated, the lifting column is used to lift the target plug at the end of the conveying unit; when the sensor detects that there is a target plug at the end of the conveying unit, the lifting cylinder can be actuated.

[0038] In the above-mentioned plug assembly device for metal connecting pipe production, as a preferred embodiment, the conveying unit includes a conveyor belt, a support gantry and a slideway;

[0039] The support gantry is fixedly arranged on the base, the end of the conveyor belt and the front end of the slide are both installed on the support gantry, the front end of the slide is located directly below the end of the conveyor belt, the conveyor belt is arranged horizontally, the front end of the slide is in a descending state to the end of the slide, and the end of the slide is connected to the third moving unit;

[0040] The slideway includes two guide rails, and the distance between the two guide rails is greater than the diameter of the small end of the target plug and smaller than the diameter of the large end of the target plug.

[0041] In the above-mentioned plug assembly device for metal connecting pipe production, as a preferred embodiment, the clamping unit is a clamping finger cylinder; a first support is also provided on the base, and the first support is located at the front end of the second base plate. The clamping unit clamps the target metal connecting pipe, and the first support is used to support the target metal connecting pipe.

[0042] In the above-mentioned plug assembly device for metal connecting pipe production, as a preferred solution, a first turntable unit is further provided on the first moving unit;

[0043] The first turntable unit includes a first rotary cylinder and a plate, wherein the plate is connected to the execution end of the first rotary cylinder; when the plate moves along with the rotation stroke of the execution end of the first rotary cylinder, the plate moves between a first stroke limit position and a second stroke limit position;

[0044] When the plate is at the first stroke limit position, the plate is directly in front of the second position of the target plug; when the plate is at the second stroke limit position, no part of the plate is directly in front of the second position of the target plug.

[0045] According to the plug assembly device for metal connecting pipe production of the above-mentioned embodiment, the automated process of metal connecting pipe plug assembly is realized through the integration of the feeding unit, the conveying unit, the gripping mechanism, the moving unit and the clamping unit, which reduces the need for manual intervention, making the plug assembly process more efficient and controllable, thereby significantly improving the automation level of the production line; through the automated operation of the gripping mechanism and the clamping unit, the workers are prevented from having to manually grasp the plug and assemble it on the metal connecting pipe, thereby reducing the physical burden of the workers; through the cooperation of the first moving unit and the second moving unit, the plug is ensured to be quickly and accurately docked with the metal connecting pipe, and the mutual cooperation and high-precision movement control shortens the assembly cycle and improves the overall production efficiency of the production line; through the standardized gripping depth and strength of the plug by the gripping mechanism and the fixation of the metal connecting pipe by the clamping unit, it is ensured that each assembly is carried out in accordance with a unified standard, thereby improving the consistency of product quality and the consistency of products or semi-finished products; the plug assembly device for metal connecting pipe production of the above-mentioned embodiment reduces the chance of direct contact between workers and mechanical equipment, effectively reduces the potential safety hazards during operation, and provides a safer guarantee for the production environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] Figure 1 A schematic diagram of the overall structure of a plug assembly device for metal connecting pipe production provided in an embodiment of the present application (I);

[0047] Figure 2A schematic diagram of the overall structure of a plug assembly device for metal connecting pipe production provided in an embodiment of the present application (II);

[0048] Figure 3 A schematic diagram of the overall structure of the second turntable unit of the plug assembly device for metal connecting pipe production provided in an embodiment of the present application;

[0049] Figure 4 A schematic diagram of the overall structure of a gripper of a plug assembly device for metal connecting pipe production provided in an embodiment of the present application;

[0050] Figure 5 A schematic cross-sectional structure diagram of a gripper of a plug assembly device for metal connecting pipe production provided in an embodiment of the present application in a non-grasping state;

[0051] Figure 6 A schematic diagram of the cross-sectional structure of a gripper of a plug assembly device for metal connecting pipe production provided in an embodiment of the present application in a gripping state.

[0052] In the figure:

[0053] 1. Loading unit; 2. Conveying unit; 201. Conveyor belt; 202. Supporting gantry; 203. Slideway; 3. Third moving unit; 301. Sensor; 302. Lifting cylinder; 303. Lifting column; 4. First moving unit; 5. Second turntable unit; 501. First gripper; 5011. Sleeve; 5012. Straight groove; 5013. Upper part of arc finger; 5014. Lower part of arc finger; 5015. Outward expansion end; 5016. Rotating shaft; 502. Second gripper; 50 3. The third gripper; 504. The fourth gripper; 505. The second rotary cylinder; 506. The gripper mounting platform; 507. The groove wheel; 508. The fastening bolt; 509. The spline; 6. The first turntable unit; 601. The plate; 602. The first rotary cylinder; 7. The first base plate; 8. The second base plate; 9. The second moving unit; 10. The clamping unit; 11. The first support; 12. The base; 13. The target metal connecting pipe; 14. The copper nut; 15. The second support; 16. The target plug. DETAILED DESCRIPTION

[0054] The present application is further described in detail below by specific embodiments in conjunction with the accompanying drawings. Wherein similar elements in different embodiments adopt associated similar element numbers. In the following embodiments, many detailed descriptions are intended to enable the present application to be better understood. However, those skilled in the art can easily recognize that some of the features can be omitted in different situations, or can be replaced by other elements, materials, and methods. In some cases, some operations related to the present application are not shown or described in the specification, in order to avoid the core part of the present application being overwhelmed by too much description, and for those skilled in the art, it is not necessary to describe these related operations in detail, and they can fully understand the related operations based on the description in the specification and the general technical knowledge in the art.

[0055] In addition, the features, operations or characteristics described in the specification can be combined in any appropriate manner to form various implementations. At the same time, the steps or actions in the method description can also be interchanged or adjusted in a manner that is obvious to those skilled in the art. Therefore, the various sequences in the specification and the drawings are only for the purpose of clearly describing a certain embodiment and are not meant to be a required sequence, unless otherwise specified that a certain sequence must be followed.

[0056] The serial numbers assigned to the components herein, such as "first", "second", etc., are only used to distinguish the objects described and do not have any order or technical meaning. The "connection" and "coupling" mentioned in this application, unless otherwise specified, include direct and indirect connections (couplings).

[0057] Please refer to Figures 1 to 6 In order to solve the problem that the plugging process in the production process of the existing air conditioner indoor and outdoor unit metal connecting pipes requires workers to manually install the plug, resulting in low automation, high labor intensity and low production efficiency, the embodiment of the present application provides a plug assembly device for the production of metal connecting pipes, such as Figure 1 As shown, the plug assembly device is used to assemble a target plug 16 for a target metal connecting tube 13. The target plug 16 is conical or conical-cylindrical, including a large end and a small end. When the target plug 16 and the target metal connecting tube 13 are in an assembled state, the small end of the target plug 16 is inserted into the end of the target metal connecting tube 13. The plug assembly device includes a feeding unit 1, a conveying unit 2, a gripping mechanism, a third moving unit 3, a first moving unit 4, a second moving unit 9 and a clamping unit 10. Each mechanism is described in detail below.

[0058] The feeding unit 1 is used to provide at least one target plug 16 .

[0059] The front end and the rear end of the conveying unit 2 are respectively connected to the loading unit 1 and the third moving unit 3 , and are used to convey at least one target plug 16 provided by the loading unit 1 to the rear end of the conveying unit 2 .

[0060] The third moving unit 3 is disposed directly below the gripping mechanism, and is used to move at least one target plug 16 at the end of the conveying unit 2 to the gripping mechanism one by one.

[0061] The gripper mechanism is used to grab the target plug 16, and the grabbed target plug 16 moves from the first position to the second position; when the target plug 16 is in the first position, the axis of the target plug 16 is in the vertical direction; when the target plug 16 is in the second position, the axis of the target plug 16 is in the horizontal direction.

[0062] The gripping mechanism is disposed on the first moving unit 4 , and the first moving unit 4 is used to drive the gripping mechanism to move in a horizontal direction, so that the target plug 16 moves from the second position to the third position.

[0063] The clamping unit 10 is used to clamp the target metal connecting pipe 13; when the target metal connecting pipe 13 is clamped by the clamping unit 10, the target metal connecting pipe 13 is arranged horizontally.

[0064] The clamping unit is disposed on the second moving unit 9 , and the second moving unit 9 is used to drive the clamping unit 10 to move in a horizontal direction, so that the target metal connecting pipe 13 moves from the fourth position to the fifth position.

[0065] When the target plug 16 is at the second position or the third position, and the target metal connecting pipe 13 is at the fourth position or the fifth position, the target plug 16 is coaxial with the target metal connecting pipe 13 .

[0066] In the above-mentioned plug assembly device for the production of metal connecting pipes, as a preferred embodiment, the plug assembly device also includes a first base plate 7 and a second base plate 8; the first base plate 7 and the second base plate 8 are both fixedly arranged on a base 12, and the base 12 is fixedly arranged; the first movable unit 4 and the second movable unit 9 are respectively arranged on the first base plate 7 and the second base plate 8, the first movable unit 4 can move in a horizontal straight line direction along the first base plate 7, and the second movable unit 9 can move in a horizontal straight line direction along the second base plate 8, and the moving directions of the first movable unit 4 and the second movable unit 9 are parallel.

[0067] In the above-mentioned plug assembly device for the production of metal connecting pipes, as a preferred embodiment, the gripper mechanism includes a second rotary cylinder 505 and a gripper mounting platform 506; the second rotary cylinder 505 is arranged on the first movable unit 4, and the execution end of the second rotary cylinder 505 is detachably connected to the gripper mounting platform 506, and at least one gripper unit is installed on the gripper mounting platform 506, and the gripper unit is used to grip the target plug 16; when at least one gripper unit moves with the stroke of the gripper mounting platform 506 and the execution end of the second rotary cylinder 505, the target plug 16 gripped by the gripper unit moves from the first position to the second position or from the second position to the first position; the execution end of the second rotary cylinder 505 moves in a rotational manner, and the rotational stroke of the execution end is not less than 90°.

[0068] Please refer to Figure 4 , Figure 5 and Figure 6 In the above-mentioned plug assembly device for the production of metal connecting pipes, as a preferred embodiment, the gripper unit includes a sleeve 5011 and at least three arc-shaped fingers; one end of the sleeve 5011 is detachably connected to the side of the gripper mounting platform 506, and the other end of the sleeve 5011 is open and has at least three straight grooves 5012 evenly distributed circumferentially, the straight grooves 5012 correspond one to one to the arc-shaped fingers, and a position in the middle of the arc-shaped fingers is rotatably connected in the straight grooves 5012 through a rotating shaft 5016; the arc-shaped fingers are arc-shaped, and the opening direction of the arc-shaped fingers is toward the axis of the sleeve 5011; the inner diameter of the sleeve 5011 is larger than the diameter of the large end of the target plug 16, the inner curved surfaces of the upper ends of at least three arc-shaped fingers have a first tangent circle, and the inner curved surfaces of the lower ends of at least three arc-shaped fingers have a second tangent circle, and the first tangent circle diameter and the second tangent circle diameter are not larger than the diameter of the large end of the target plug 16 at the same time.

[0069] In the above-mentioned plug assembly device for the production of metal connecting pipes, as a preferred embodiment, the arc-shaped finger includes an arc-shaped finger upper part 5013 and an arc-shaped finger lower part 5014; the length of the arc-shaped finger upper part 5013 is greater than the length of the arc-shaped finger lower part 5014, and the rotating shaft 5016 is arranged between the arc-shaped finger upper part 5013 and the arc-shaped finger lower part 5014; the arc-shaped finger lower part 5014 is provided with an outward expansion part at the lower end, and the outward expansion part is an arc shape opposite to the arc shape of the arc-shaped finger lower part 5014.

[0070] In the above-mentioned plug assembly device for metal connecting pipe production, as a preferred embodiment, the number of arc-shaped fingers is four, and the number of straight grooves 5012 is four.

[0071] Please refer to Figure 3In the above-mentioned plug assembly device for the production of metal connecting pipes, as a preferred embodiment, the execution end of the second rotary cylinder 505 includes a groove wheel 507, and the first end of the gripper mounting platform 506 is provided with a groove consistent with the shape of the groove wheel 507, and the second rotary cylinder 505 is connected to the groove at the first end of the gripper mounting platform 506 through the groove wheel 507; the groove wheel 507 includes at least one spline 509, and the second end of the gripper mounting platform 506 is provided with at least one fastening bolt 508, and at least one fastening bolt 508 passes through the second end of the gripper mounting platform 506 to the first end of the gripper mounting platform 506, and is threadedly connected to at least one spline 509.

[0072] In the above-mentioned plug assembly device for the production of metal connecting pipes, as a preferred solution, the gripper mounting platform 506 is in the shape of a rectangular parallelepiped, and a gripper unit is installed on each side of the gripper mounting platform 506, namely the first gripper 501, the second gripper 502, the third gripper 503 and the fourth gripper 504; the groove wheel 507 includes four splines 509, and the number of fastening bolts 508 is two, three or four, and each fastening bolt 508 is threadedly connected to a spline 509; the splines 509 are evenly distributed on the outer circumference of the groove wheel 507.

[0073] In the above-mentioned plug assembly device for the production of metal connecting pipes, as a preferred embodiment, the third movable unit 3 is installed on the base 12 through the second support 15, and the third movable unit 3 includes a sensor 301, a lifting cylinder 302 and a lifting column 303; the sensor 301 is arranged on the second support 15, and is used to detect whether there is a target plug 16 at the end of the conveying unit 2; the lifting cylinder 302 is fixedly installed on the side of the second support 15, and the piston rod of the lifting cylinder 302 is vertically arranged upward and is located directly below the end of the conveying unit 2; the lifting column 303 is arranged at the end of the piston rod of the lifting cylinder 302, and when the lifting cylinder 302 is actuated, the lifting column 303 is used to lift the target plug 16 at the end of the conveying unit 2; when the sensor 301 detects that there is a target plug 16 at the end of the conveying unit 2, the lifting cylinder 302 can be actuated.

[0074] Please refer to Figure 2 In the above-mentioned plug assembly device for metal connecting pipe production, as a preferred embodiment, the conveying unit 2 includes a conveyor belt 201, a support gantry 202 and a slide 203; the support gantry 202 is fixedly arranged on the base 12, the end of the conveyor belt 201 and the front end of the slide 203 are both installed on the support gantry 202, the front end of the slide 203 is located directly below the end of the conveyor belt 201, the conveyor belt 201 is horizontally arranged, and the front end of the slide 203 to the end of the slide 203 is in a descending state, and the end of the slide 203 is connected to the third mobile unit 3; the slide 203 includes two guide rails, and the distance between the two guide rails is greater than the small end diameter of the target plug 16 and less than the large end diameter of the target plug 16.

[0075] In the above-mentioned plug assembly device for the production of metal connecting pipes, as a preferred embodiment, the clamping unit 10 is a clamping cylinder; a first support 11 is also provided on the base 12, and the first support 11 is located at the front end of the second base plate 8. The clamping unit 10 clamps the target metal connecting pipe 13, and the first support 11 is used to support the target metal connecting pipe 13.

[0076] In the above-mentioned plug assembly device for metal connecting pipe production, as a preferred embodiment, a first turntable unit 6 is also provided on the first movable unit 4; the first turntable unit 6 includes a first rotary cylinder 602 and a plate 601, and the plate 601 is connected to the execution end of the first rotary cylinder 602; when the plate 601 moves with the rotation stroke of the execution end of the first rotary cylinder 602, the plate 601 moves between the first stroke limit position and the second stroke limit position; when the plate 601 is at the first stroke limit position, the plate 601 is directly in front of the second position of the target plug 16; when the plate 601 is at the second stroke limit position, no part of the plate 601 is directly in front of the second position of the target plug 16.

[0077] In some embodiments, the base 12 includes a first base and a second base, and the second base is used to place the loading unit 1 separately to prevent resonance or vibration interference between the loading unit 1 and other components through the base 12.

[0078] In some embodiments, a plug assembly device for the production of metal connecting pipes includes: a first base, a second base plate 8, a first support 11, a second movable unit 9, a metal connecting pipe, a copper nut 14, a clamping unit 10, a first base plate 7, a first turntable unit 6, a first movable unit 4, a second turntable unit 5, a first gripper 501, a second gripper 502, a third gripper 503, a fourth gripper 504, a loading unit 1, a conveying unit 2, a second base, a third movable unit 3, a sensor 301, a second support 15, and a plate 601.

[0079] In some embodiments, the first base and the second base are fixed on the ground respectively; the second base plate 8 is fixed to the first base with bolts; one end of the first support 11 is fixed to the first base; a gap is left between the left end of the second base plate 8 and the right end of the first support 11; one end of the second mobile unit 9 is installed on the second base plate 8, and a moving pair is formed between the second base plate 8; the clamping unit 10 is installed on the other end of the second mobile unit 9, and a rotating pair is formed between the second mobile unit 9; the metal connecting pipe is located above the first support 11 and the clamping unit 10; the end of the metal connecting pipe does not exceed the right end surface of the second base plate 8; the metal connecting pipe passes through the copper nut 14, and the copper nut 14 is located on the right side of the clamping unit 10; the first base plate 7 is fixed to the first base with bolts; the first base plate 7 and the second base plate 8 are staggered and fixed, and are not completely on the same straight line; the left end surface of the first base plate 7 is located on the left side of the right end surface of the second base plate 8; one end of the first mobile unit 4 is installed on the first base plate 7, and a moving pair is formed between the first mobile unit 4 and the first base plate 7; the first turntable unit 6 is installed It is installed on the left side of the first mobile unit 4 and forms a rotating pair with the first mobile unit 4; the plate 601 is fixed to the first turntable unit 6 with bolts; the second turntable unit 5 is installed on the front side of the first mobile unit 4 and forms a rotating pair with the first mobile unit 4; the first gripper 501, the second gripper 502, the third gripper 503, and the fourth gripper 504 are respectively fixed on the four sides of the second turntable unit 5, and the four grippers are in the same plane, and the plane coincides with the central symmetry plane of the clamping unit 10, the first support 11, the second mobile unit 9, and the third mobile unit 3; the second support 15 is fixed to the first base with bolts; the third mobile unit 3 is installed on the second support 15 and forms a moving pair with the second support 15; the third mobile unit 3 is directly below the gripper; the sensor 301 is fixed on the third mobile unit 3, and the detection port faces the outlet of the conveying unit 2; the feeding unit 1 is fixed on the second base; one end of the conveying unit 2 is fixedly connected to the feeding unit 1, and the other end maintains a fixed gap with the right side of the third mobile unit 3.

[0080] The working principle of the plug assembly device in some embodiments is as follows:

[0081] The initial state of the target metal connecting tube 13 is: firstly, the copper screw 14 is inserted into the metal connecting tube, and then a bell mouth is opened at the end of the metal connecting tube, and the copper screw 14 can be stuck in the bell mouth and will not fall off.

[0082] Step (1) Initial state: there is no metal connecting pipe directly above the first support 11, and there is no tendency for the metal connecting pipe to be placed directly above the first support 11; the second movable unit 9 moves to the leftmost end of the second base plate 8; the clamping unit 10 is opened; the first movable unit 4 moves to the rightmost side of the first base plate 7, at which time the first gripper 501 is directly above the third movable unit 3; the third movable unit 3 moves downward to the lower end so that it is flush with the conveying unit 2; the protective plugs are scattered in the loading unit 1; the loading unit 1 arranges the scattered protective plugs in a certain order and conveys them along the conveying unit 2 to the third movable unit 3; the second turntable unit 5 rotates 90 degrees to make the first gripper 501 vertically downward; the first turntable unit 6 rotates 90 degrees to make the plate 601 avoid the front of the second gripper 502.

[0083] Step (2) manually or through automated equipment, place the metal connecting pipe with the copper nut 14 to the position directly above the first support 11. During the process of the metal connecting pipe moving from the beginning to the completion of the placement, the loading unit 1 continuously arranges the protective plugs and sends the first protective plug to the third moving unit 3 through the conveying unit 2. When the sensor 301 detects that the protective plug has reached the third moving unit 3, the third moving unit 3 starts to move upward to the upper end, so that the protective plug reaches the range of action of the first gripper 501 (at this time, the protective plug in the conveying unit 2 will be temporarily blocked by the lower end of the third moving unit 3 and will not be Falling down); then the first gripper 501 acts to temporarily fix the protective plug (the first gripper 501 can be a suction cup, a clamping finger, or a tightening clamp, etc., and its type can be determined according to the different characteristics of the protective plug), and the third moving unit 3 moves downward again and returns to a position flush with the output unit; then the second turntable unit 5 rotates 90 degrees, rotates the first gripper 501 to a horizontal state, and its end face faces the side with the copper nut 14; the first turntable unit 6 rotates 90 degrees in the opposite direction, so that the plate 601 arrives directly in front of the first gripper 501 and maintains a certain distance from the end of the first gripper 501.

[0084] Step (3) After the metal connecting pipe with the copper nut 14 is placed directly above the first support 11, the metal connecting pipe is supported by the first support 11 and the second movable unit 9, and the copper nut 14 is located a certain distance to the right of the clamping unit 10; thereafter, the clamping unit 10 is tightened to clamp the metal connecting pipe, but does not clamp the copper nut 14, and the end face of the clamping unit 10 can move along the metal connecting pipe against the copper nut 14; thereafter, the first movable unit 4 moves a certain distance to the left end of the first bottom plate 7 and then stops. During this movement, the plate 601 will push the metal connecting pipe to the left for a certain distance (the distance value is fixed and the distance value is greater than the distance value of the metal connecting pipe). The position error value during placement, at this time the end of the metal connecting pipe can ensure accurate positioning); the second moving unit 9 moves to the right again, so that the clamping unit 10 moves to the rightmost end of the metal connecting pipe against the copper nipple 14; the first turntable unit 6 rotates 90 degrees to make the plate 601 avoid the front of the first gripper 501; the first moving unit 4 moves to the left for a certain distance again and then stops. During this process, the protective plug is installed in the copper nipple 14; thereafter, the first gripper 501 releases the protective plug; the first moving unit 4 moves to the right again to the right end of the first bottom plate 7, and the clamping unit 10 is opened at the same time; the metal connecting pipe that has been equipped with the protective plug is removed.

[0085] Step (4) During the process of removing the metal connecting pipe with the protective plug from directly above the first support 11:

[0086] The second mobile unit 9 is actuated and moves to the leftmost end of the second base plate 8, while keeping the clamping unit 10 open; the loading unit 1 continues to act to arrange the scattered protective plugs in a certain order and transport them along the conveying unit 2 to the third mobile unit 3; the second turntable unit 5 rotates 90 degrees to make the first gripper 501 vertically downward and directly above the third mobile unit 3 (when grippers of the same specifications are used, the first gripper 501, the second gripper 502, the third gripper 503, and the fourth gripper 504 can be rotated sequentially and cyclically to take out the protective plugs; when grippers of different specifications are used, the first gripper 501, the second gripper 502, the third gripper 503, and the fourth gripper 504 need to rotate in the opposite direction to take out the protective plugs individually).

[0087] When the metal connecting pipe with the copper screw 14 is placed directly above the first support 11 again, steps (1) to (4) are repeated to complete the process.

[0088] Those skilled in the art will appreciate that all or part of the functions of the various methods in the above-mentioned embodiments can be implemented by hardware or by computer program. When all or part of the functions in the above-mentioned embodiments are implemented by computer program, the program can be stored in a computer-readable storage medium, and the storage medium can include: read-only memory, random access memory, disk, CD, hard disk, etc., and the program is executed by a computer to implement the above-mentioned functions. For example, the program is stored in the memory of the device, and when the program in the memory is executed by the processor, all or part of the above-mentioned functions can be implemented. In addition, when all or part of the functions in the above-mentioned embodiments are implemented by computer program, the program can also be stored in a storage medium such as a server, another computer, disk, CD, flash disk or mobile hard disk, and can be downloaded or copied and saved in the memory of the local device, or the system of the local device is updated, and when the program in the memory is executed by the processor, all or part of the functions in the above-mentioned embodiments can be implemented.

[0089] The above specific examples are used to illustrate the present application, which is only used to help understand the present application and is not intended to limit the present application. For technicians in the technical field to which the present application belongs, they can also make some simple deductions, deformations or substitutions based on the ideas of the present application.

Claims

1. A plug assembly device for metal connecting pipe production, the plug assembly device is used to assemble a target plug for a target metal connecting pipe, the target plug is conical or conical, including a large end and a small end, when the target plug and the target metal connecting pipe are in an assembled state, the small end of the target plug is inserted into the end of the target metal connecting pipe, characterized in that: The plug assembly device comprises a feeding unit, a conveying unit, a gripping mechanism, a third moving unit, a first moving unit, a second moving unit and a clamping unit; The feeding unit is used to provide at least one target plug; The front end and the rear end of the conveying unit are respectively connected to the loading unit and the third moving unit, and are used to convey at least one target plug provided by the loading unit to the rear end of the conveying unit; The third moving unit is arranged directly below the gripper mechanism, and is used to move at least one target plug at the end of the conveying unit to the gripper mechanism one by one; The gripper mechanism is used to grab the target plug, and the grabbed target plug moves from the first position to the second position; when the target plug is in the first position, the axis of the target plug is in the vertical direction; when the target plug is in the second position, the axis of the target plug is in the horizontal direction; The plug assembly device also includes a first bottom plate and a second bottom plate; the first bottom plate and the second bottom plate are both fixedly arranged on the base, and the base is fixedly arranged; the first moving unit and the second moving unit are respectively arranged on the first bottom plate and the second bottom plate, the first moving unit can move in a horizontal straight line direction along the first bottom plate, and the second moving unit can move in a horizontal straight line direction along the second bottom plate, and the moving directions of the first moving unit and the second moving unit are parallel; The gripping mechanism is arranged on the first moving unit, and the first moving unit is used to drive the gripping mechanism to move in the horizontal direction so that the target plug is moved from the second position to the third position; the first moving unit is also provided with a first turntable unit; the first turntable unit includes a first rotary cylinder and a plate, and the plate is connected to the execution end of the first rotary cylinder; when the plate moves with the rotation stroke of the execution end of the first rotary cylinder, the plate moves between the first stroke limit position and the second stroke limit position; when the plate is at the first stroke limit position, the plate is directly in front of the second position of the target plug; when the plate is at the second stroke limit position, no part of the plate is directly in front of the second position of the target plug; The clamping unit is used to clamp the target metal connecting pipe; when the target metal connecting pipe is clamped by the clamping unit, the target metal connecting pipe is arranged horizontally; the clamping unit is a clamping finger cylinder; a first support is also arranged on the base, the first support is located at the front end of the second bottom plate, and when the clamping unit clamps the target metal connecting pipe, the first support is used to support the target metal connecting pipe; The clamping unit is arranged on the second moving unit, and the second moving unit is used to drive the clamping unit to move in a horizontal direction, so that the target metal connecting pipe moves from the fourth position to the fifth position; When the target plug is in the second position or the third position, and the target metal connecting pipe is in the fourth position or the fifth position, the target plug is coaxial with the target metal connecting pipe; After the target metal connecting tube with the copper nut is placed directly above the first support, the target metal connecting tube is supported by the first support and the second movable unit, and the copper nut is located a certain distance to the right of the clamping unit; thereafter, the clamping unit is tightened to clamp the target metal connecting tube but not the copper nut, and the end face of the clamping unit can move along the target metal connecting tube against the copper nut; thereafter, the first movable unit moves a certain distance to the left end of the first base plate and then stops, during which the plate pushes the target metal connecting tube to the left for a distance; the second movable unit moves to the right again, so that the clamping unit moves to the rightmost end of the target metal connecting tube against the copper nut; the first turntable unit rotates 90 degrees to make the plate avoid the front of the gripper mechanism; the first movable unit moves a certain distance to the left again and stops, during which the protective plug is installed in the copper nut.

2. The plug assembly device for metal connecting pipe production according to claim 1, characterized in that: The gripper mechanism comprises a second rotary cylinder and a gripper mounting platform; The second rotary cylinder is arranged on the first moving unit, and the execution end of the second rotary cylinder is detachably connected to the gripper mounting platform, and at least one gripper unit is installed on the gripper mounting platform, and the gripper unit is used to grab the target plug; When at least one gripper unit moves along with the stroke of the gripper mounting platform and the execution end of the second rotary cylinder, the target plug gripped by the gripper unit moves from the first position to the second position or from the second position to the first position; The actuator end of the second rotary cylinder moves in a rotational manner, and the rotational stroke of the actuator end is not less than 90°.

3. The plug assembly device for metal connecting pipe production according to claim 2, characterized in that: The gripper unit comprises a sleeve and at least three arc-shaped fingers; One end of the sleeve is detachably connected to the side of the gripper mounting platform, and the other end of the sleeve is open and has at least three straight grooves evenly distributed around the circumference, the straight grooves correspond to the arc-shaped fingers one by one, and a position in the middle of the arc-shaped fingers is rotatably connected to the straight grooves through a rotating shaft; The arc-shaped finger is in an arc shape, and the opening direction of the arc-shaped finger is toward the axis of the sleeve; The inner diameter of the sleeve is larger than the diameter of the large end of the target plug, the inner curved surfaces of at least three of the upper ends of the arc-shaped fingers have a first tangent circle, and the inner curved surfaces of at least three of the lower ends of the arc-shaped fingers have a second tangent circle, and the first tangent circle diameter and the second tangent circle diameter are not larger than the diameter of the large end of the target plug at the same time.

4. The plug assembly device for metal connecting pipe production according to claim 3, characterized in that: The arc-shaped finger comprises an arc-shaped finger upper portion and an arc-shaped finger lower portion; The length of the upper part of the arc-shaped finger is greater than the length of the lower part of the arc-shaped finger, and the rotating shaft is arranged between the upper part of the arc-shaped finger and the lower part of the arc-shaped finger; An outward expansion portion is arranged at the lower end of the lower portion of the arc-shaped finger, and the outward expansion portion is in an arc shape opposite to the arc shape of the lower portion of the arc-shaped finger.

5. The plug assembly device for metal connecting pipe production according to claim 3, characterized in that: The number of the arc-shaped fingers is four, and the number of the straight grooves is four.

6. The plug assembly device for metal connecting pipe production according to claim 2, characterized in that: The execution end of the second rotary cylinder includes a groove wheel, the first end of the gripper mounting platform is provided with a groove having the same shape as the groove wheel, and the second rotary cylinder is connected to the groove of the first end of the gripper mounting platform through the groove wheel; The groove wheel includes at least one spline, and at least one fastening bolt is arranged at the second end of the gripper mounting platform. After the at least one fastening bolt passes through the second end of the gripper mounting platform to the first end of the gripper mounting platform, it is threadedly connected to the at least one spline.

7. The plug assembly device for metal connecting pipe production according to claim 6, characterized in that: The gripper mounting platform is in a rectangular parallelepiped shape, and each side of the gripper mounting platform is equipped with a gripper unit, which are respectively a first gripper, a second gripper, a third gripper and a fourth gripper; the groove wheel includes four splines, and the number of the fastening bolts is two, three or four, and each fastening bolt is threadedly connected to one of the splines; The splines are evenly distributed on the outer circumference of the groove wheel.

8. The plug assembly device for metal connecting pipe production according to claim 1, characterized in that: The third mobile unit is installed on the base through the second support, and the third mobile unit includes a sensor, a lifting cylinder and a lifting column; The sensor is arranged on the second support and is used to detect whether there is a target blockage at the end of the conveying unit; The lifting cylinder is fixedly mounted on the second supporting side surface, and the piston rod of the lifting cylinder is vertically arranged upward and is located directly below the end of the conveying unit; The lifting column is arranged at the end of the piston rod of the lifting cylinder. When the lifting cylinder is actuated, the lifting column is used to lift the target plug at the end of the conveying unit; when the sensor detects that there is a target plug at the end of the conveying unit, the lifting cylinder can be actuated.

9. The plug assembly device for metal connecting pipe production according to claim 8, characterized in that: The conveying unit comprises a conveyor belt, a supporting gantry and a slideway; The support gantry is fixedly arranged on the base, the end of the conveyor belt and the front end of the slide are both installed on the support gantry, the front end of the slide is located directly below the end of the conveyor belt, the conveyor belt is arranged horizontally, the front end of the slide is in a descending state to the end of the slide, and the end of the slide is connected to the third moving unit; The slideway includes two guide rails, and the distance between the two guide rails is greater than the diameter of the small end of the target plug and smaller than the diameter of the large end of the target plug.

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