An automatic feeding and unloading mechanism for relay ring solder and its ring solder assembly machine

Abstract

This invention discloses an automatic feeding and discharging mechanism for relay-type ring solder and its ring solder assembly machine, including a support plate, a connector, a slide rail, and a support plate. The connector is connected to an external power mechanism. The support plate is horizontally positioned at the bottom of the connector, and the support plate is vertically positioned at the bottom of the support plate. The slide rail is vertically positioned on the side wall of the support plate. It also includes at least two feeding heads, each positioned on one side of the support plate, for picking up the ring solder. Each feeding head includes a connector, a support, a drive assembly, an air path assembly, and a suction assembly. This invention uses a ring cavity to vacuum-adsorb the ring solder. During the feeding process, the air path is kept intact while flexible contact is achieved through the flexible connection of the flexible nozzle and the suction base.

Description

Technical Field

[0001] This invention relates to the field of automatic relay assembly, and in particular to an automatic relay ring solder loading and unloading mechanism and its ring solder assembly machine. Background Technology

[0002] A relay is an electrical control device that causes a predetermined step change in the controlled variable in the electrical output circuit when the input quantity changes to a specified value. It has an interactive relationship between the control system (input circuit) and the controlled system (output circuit); it is commonly used in automated control circuits, and is essentially an "automatic switch" that uses a small current to control a large current; it plays roles in automatic adjustment, safety protection, and circuit switching in circuits.

[0003] The relay structure includes a ring-shaped solder, which is a flexible ring-shaped sheet structure. During the relay assembly process, the automatic picking and placing of the ring-shaped solder is involved. Due to the material and shape of the ring-shaped solder, traditional picking mechanisms cannot complete the automatic picking while ensuring that the shape and structure of the ring-shaped solder remain unchanged. In view of this, it is necessary to design an automatic picking and placing mechanism for the ring-shaped solder to assist in realizing the automatic picking and placing of the ring-shaped solder during the automatic assembly of the relay. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to address the shortcomings of the prior art by providing an automatic ring-shaped brazing filler metal picking and placing mechanism and its ring-shaped brazing filler metal assembly machine that uses a ring cavity to vacuum adsorption to pick up ring-shaped brazing filler metal, ensures the integrity of the suction air path during the picking process, and achieves flexible contact during the picking process by using a flexible suction nozzle and a flexible connection between the suction base and the ring-shaped brazing filler metal.

[0005] The technical solution adopted in this invention is as follows: An automatic feeding and discharging mechanism for relay-type ring-shaped brazing filler metal, used for absorbing ring-shaped brazing filler metal with a ring-shaped sheet structure, includes a support plate, a connecting head, slide rails, and a bearing plate. The connecting head is connected to an external power mechanism. The support plate is horizontally arranged at the bottom of the connecting head. The bearing plate is vertically arranged at the bottom of the support plate and located in the middle of the support plate. The slide rails include at least two, which are arranged vertically on the side wall of the bearing plate. The mechanism also includes a feeding head, which includes at least two, and is respectively arranged on both sides of the bearing plate for absorbing the ring-shaped brazing filler metal. The feeding head includes a connecting seat, a support, a drive assembly, a pneumatic assembly, and a suction assembly. The connecting seat includes two, which are respectively arranged on the left and right sides of the bearing plate and extend horizontally outward to form a horizontal bearing platform. The connecting seat has at least one feeding and discharging component. The device comprises at least two sets of drive components, with the output ends of the drive components facing downwards. The support includes at least two supports, each slidably connected to a slide rail in the vertical direction and connected to the output end of the drive component. The drive component drives the support to move up and down. The air passage component is mounted on the support and extends downwards through it. The suction component is located at the lower end of the air passage component, and has an internal air chamber that communicates with the air passage of the air passage component. The suction component is flexibly and movable in the vertical direction on the air passage component. When picking up material, the suction component moves downwards close to the annular brazing filler metal. The reaction force of the annular brazing filler metal pushes the suction component upwards, bringing it close to the nozzle of the air passage component. The air passage component draws air upwards, simultaneously creating a vacuum negative pressure at the nozzle and air vent. The nozzle adheres to and fixes the suction component, and a vacuum negative pressure is generated at the bottom of the suction component to adsorb the annular brazing filler metal.

[0006] Preferably, the slide rails include four rails, which are arranged in pairs on the front and rear side walls of the support plate; the material picking heads include four sets, which are arranged in pairs on the left and right sides of the support plate and are respectively arranged corresponding to the four slide rails.

[0007] Preferably, the drive assembly includes a lifting cylinder and a lifting column, wherein the lifting cylinder is vertically mounted on the connecting seat and its output end extends downward through the connecting seat; one end of the lifting column is connected to the output end of the lifting cylinder and the other end is connected to the support so as to drive the support to move up and down.

[0008] Preferably, the air path assembly includes an air receiving seat, a material taking seat, a connecting boss, an air seat, and a suction nozzle. The air receiving seat is mounted on a support, with its upper end connected to an external vacuum generator and its lower end extending downwards through the support. The material taking seat is connected to the lower end of the air receiving seat. The connecting boss is located at the bottom of the material taking seat and protrudes downwards. The air seat is mounted on the connecting boss and has an internal air path that communicates with the air receiving seat. The suction nozzle is located at the bottom of the air seat and communicates with the air path of the air seat; the suction nozzle is made of a flexible material with a trumpet-shaped structure.

[0009] Preferably, the air passage within the air seat includes a main air passage, branch air passages, and air pipes. The main air passage is located in the middle of the air seat and is coaxially arranged with the air seat, with one end of the main air passage connected to the air receiving seat. The air pipes include at least two, which are spaced apart along the circumference outside the main air passage and extend along the axial direction. The branch air passages include at least two, which are respectively connected to the main air passage and the air pipes to connect the main air passage and the air pipes.

[0010] Preferably, the bottom of the air seat is provided with at least two air holes, which are respectively connected to at least two air tubes; the suction nozzle is connected to the main air passage.

[0011] Preferably, the suction assembly includes a suction seat and an annular suction cavity. The suction seat has an inwardly recessed circular air groove in its middle. The outer diameter of the air groove is not less than the outer diameter of the air seat and is used to fit over the air seat. The outer side of the air groove forms an outer edge. At least two mounting holes are spaced apart on the outer edge. After the suction seat is fitted onto the air seat, the outer edge mates with the material picker. The mounting holes on the outer edge and the mounting holes on the material picker are aligned axially. A spring post is inserted into the mounting holes of the material picker and the outer edge that are aligned with each other, so as to flexibly and movablely connect the suction seat to the material picker in the axial direction.

[0012] Preferably, the air groove is provided with at least two suction holes; the annular suction cavity is connected to the bottom of the suction base; the at least two suction holes extend from the bottom of the air groove into the annular suction cavity along the axial direction until they reach the bottom of the annular suction cavity; when picking up material, the bottom of the annular suction cavity contacts the annular brazing filler metal, and the annular brazing filler metal generates an upward reaction force to push the suction base upward, so that the bottom surface of the air groove contacts and seals with the suction nozzle, the flexible suction nozzle is squeezed upward, the air receiving base draws air upward, and at the same time, a vacuum negative pressure is generated at the air hole and the suction nozzle, wherein the suction nozzle adsorbs and fixes the bottom surface of the air groove, the air hole generates a vacuum negative pressure in the air groove and conducts it to the air hole, so that the air hole generates a vacuum negative pressure at the bottom of the annular suction cavity, so as to adsorb and fix the annular brazing filler metal.

[0013] A ring-shaped brazing filler assembly machine includes a relay-based automatic ring-shaped brazing filler loading and unloading mechanism.

[0014] The beneficial effects of this invention are as follows: This invention addresses the shortcomings and deficiencies of existing technologies by independently developing and designing an automatic ring-shaped brazing filler metal pick-up and drop-off mechanism and its ring-shaped brazing filler metal assembly machine. This mechanism uses a ring cavity to vacuum adsorption to pick up ring-shaped brazing filler metal, ensuring the integrity of the suction air path during the picking process while achieving flexible contact during the picking process through the flexible connection of the flexible nozzle and the suction base.

[0015] This invention aims to provide a process for automatically assembling relay ring solder, specifically for the assembly of relay ring solder. The goal is to achieve automatic loading and unloading of the relay ring solder. Specifically, the invention uses a horizontally positioned support plate as its load-bearing structure. An external drive mechanism is connected to the support plate via a connector on its upper part to move the invention between workstations. A vertical support plate is positioned at the bottom of the support plate, with two loading heads on its front and rear sides, enabling the automatic loading and unloading of four ring solder pieces simultaneously, effectively improving the loading and unloading efficiency. The loading heads are slidably connected to vertically positioned slide rails on the support plate, guided and limited by the slide rails. Two sets of connecting seats are located on both sides of the support plate, each with a vertically mounted lifting cylinder. A lifting column is connected to the output end of the lifting cylinder, and the lifting column is connected to the loading head. The linear power output from the lifting cylinder drives the loading head to move up and down, allowing it to vertically approach or move away from the ring solder during loading and unloading. The invention is characterized by the following: the feeding head of the present invention further includes an air path assembly and a suction assembly. The air path assembly is used to draw in or draw in gas and use vacuum negative pressure to draw in or release the annular brazing filler metal. The suction assembly is connected to the air path assembly and is used to perform the suction or discharge action. Furthermore, the air path assembly uses a vertically mounted air receiving seat on the support as the air path connection structure. One end of the air receiving seat is connected to an external vacuum generator, and the other end extends downward and is connected to the feeding seat. The bottom of the feeding seat is provided with a downwardly protruding boss, and an air seat is provided on the boss. The air seat is provided with an air path, which includes a main air path, branch air paths, and air pipes. The main air path is located at the axial position of the air seat. The branch air paths include multiple ones, which are arranged at intervals along the circumferential direction on the side of the main air path and are connected to the main air path through air pipes. The upper end of the main air path is connected to the upper air receiving seat, and the lower end of the main air path is connected to a flexible material suction nozzle. Each branch air path forms air holes at intervals along the circumferential direction at the bottom of the air seat.Furthermore, the material suction assembly of the present invention includes a suction base and an annular suction cavity. The suction base has an inwardly recessed air groove in the middle, and the edge of the air groove forms a mounting boss. The mounting boss has a mounting hole. During installation, the suction base is sleeved onto the bottom of the air base from below, so that the air base is embedded in the air groove and the air base and the air groove are sealed together, forming a sealed space in the air groove. The mounting hole on the mounting boss and the mounting hole on the suction base are correspondingly arranged in the axial direction and connected by a spring post, so that the suction base and the air base are flexibly movable in the axial direction. That is, the bottom of the air base has a certain amount of space to move in the axial direction in the air groove, so as to have a flexible buffering capacity during the picking and placing of the annular brazing filler metal, effectively reducing the surface damage or bending of the annular brazing filler metal during the picking and placing process. The twisting mechanism ensures the quality of the annular brazing filler metal. Multiple suction holes are spaced circumferentially at the bottom of the air groove. The annular suction cavity is a cylindrical structure connected to the bottom of the suction base. Air holes at the bottom of the air groove extend axially downwards towards the annular suction cavity until they reach its bottom surface, forming circularly arranged air holes. During material handling, the annular suction cavity aligns with the annular brazing filler metal axially and then approaches and contacts it, ensuring the air holes adhere tightly to the surface of the annular brazing filler metal. The air base draws air upwards from an external vacuum generator, which then conducts the air through the air path within the air base to the air holes. The air holes generate upward suction within the air groove, creating a vacuum negative pressure that is transmitted along the annular suction cavity to the suction holes on its bottom surface. The vacuum negative pressure generated at the suction holes adsorbs and fixes the annular brazing filler metal. Furthermore, this invention utilizes the flexible and movable connection between the suction base and the air base. The spring force of the spring column enables flexible contact with the annular brazing filler metal during the pick-and-place process. Simultaneously, the main and branch air paths within the air base, along with the flexible suction nozzle at the bottom of the air base, ensure the integrity of the air path during the air base's movement. Specifically, when the annular suction cavity contacts the annular brazing filler metal, the upward reaction force of the filler metal pushes the annular suction cavity and air base upwards. The bottom of the air groove contacts the suction nozzle and presses it upwards, sealing the bottom of the air groove with the nozzle. The air base flexibly buffers the upward movement while simultaneously sealing with the nozzle. The vacuum negative pressure generated by the nozzle adsorbs and fixes the bottom of the air groove, thus adsorbing and fixing the suction base onto the air base. Simultaneously, the compressed material thickness from the suction nozzle... The air seat is designed to maintain a gap between its bottom and the bottom of the air groove, ensuring unobstructed airflow between the air holes and the air groove and its suction holes. The suction nozzle holds the suction seat in place, allowing the annular suction cavity to hold the annular brazing filler metal. This maintains the positional stability of the suction seat and the annular cavity during the transfer of the annular brazing filler metal between different workstations, preventing axial displacement and ensuring positional accuracy. During discharge, after the annular cavity places the annular brazing filler metal at the preset workstation, the vacuum pressure inside the air seat gradually decreases. Simultaneously, the suction holes at the bottom of the annular suction cavity release the annular brazing filler metal, and the vacuum pressure at the suction nozzle decreases, releasing the suction seat. Under the elastic force of the spring column, the suction seat pre-presses the annular brazing filler metal downwards to ensure its flatness. Attached Figure Description

[0016] Figure 1 This is one of the three-dimensional structural schematic diagrams of the present invention.

[0017] Figure 2 This is the second three-dimensional structural schematic diagram of the present invention.

[0018] Figure 3 This is the third three-dimensional structural schematic diagram of the present invention.

[0019] Figure 4 This is one of the component disassembly diagrams of the material handling assembly of the present invention.

[0020] Figure 5 for Figure 4 Enlarged structural diagram at point I.

[0021] Figure 6 This is the second schematic diagram showing the component breakdown structure of the material handling assembly of the present invention.

[0022] Figure 7 This is a three-dimensional structural diagram of the present invention.

[0023] In the picture: 1. Support plate; 2. Connector; 3. Slide rail; 4. Bearing plate; 5. Material take-up head; 6. Annular brazing filler metal; 51. Connecting seat; 52. Lifting cylinder; 53. Lifting column; 54. Support; 55. Air receiving seat; 56. Material picking seat; 57. Connecting boss; 58. Air seat; 59. Suction nozzle; 510. Suction seat; 511. Annular suction chamber; A. Air pores; B. Air grooves; C. Suction holes. Detailed Implementation

[0024] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0025] It should be noted that all directional indications in the embodiments of the present invention, such as up, down, left, right, front, back, etc., are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0026] In this invention, unless otherwise explicitly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral part; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0027] Example 1: As Figures 1 to 7 As shown, this invention proposes an automatic feeding and discharging mechanism for relay-type annular brazing filler metal, used for picking up annular sheet-like brazing filler metal. It includes a support plate 1, a connector 2, slide rails 3, and a support plate 4. The connector 2 is connected to an external power mechanism. The support plate 1 is horizontally positioned at the bottom of the connector 2, and the support plate 4 is vertically positioned at the bottom of the support plate 1, located in the middle of the support plate 1. At least two slide rails 3 are vertically positioned on the side wall of the support plate 4. The mechanism also includes a picking head 5, with at least two picking heads 5 respectively positioned on both sides of the support plate 4, used for picking up the annular brazing filler metal. Each picking head 5 includes a connecting seat 51, a support 54, a drive assembly, an air circuit assembly, and a suction assembly. Two connecting seats 51 are respectively positioned on the left and right sides of the support plate 4, extending horizontally outward to form a horizontal support platform. The connecting seats 51 are equipped with... There are at least two sets of drive components, with the output ends of the drive components facing downwards; the support 54 includes at least two, each of which is slidably connected to the slide rail 3 in the vertical direction and connected to the output end of the drive component, which drives the support 54 to move up and down; the air passage component is set on the support 54 and extends downwards through the support 54; the suction component is set at the lower end of the air passage component, and the suction component has an air chamber inside, which is interconnected with the air passage of the air passage component; the suction component is flexibly and movablely connected to the air passage component in the vertical direction. When picking up material, the suction component moves downwards close to the annular brazing filler metal 0, and the reaction force of the annular brazing filler metal 0 pushes the suction component upwards, making it close to the suction nozzle 59 of the air passage component. The air passage component draws air upwards, and at the same time, the suction nozzle 59 and the air hole A generate a vacuum negative pressure. The suction nozzle 59 adsorbs and fixes the suction component, and a vacuum negative pressure is generated at the bottom of the suction component to adsorb the annular brazing filler metal 0.

[0028] The slide rails 3 include four rails, which are arranged in pairs on the front and rear side walls of the support plate 4; the material picking heads 5 include four sets, which are arranged in pairs on the left and right sides of the support plate 4 and are respectively arranged corresponding to the four slide rails 3.

[0029] The drive assembly includes a lifting cylinder 52 and a lifting column 53. The lifting cylinder 52 is vertically mounted on the connecting seat 51, and its output end extends downward through the connecting seat 51. One end of the lifting column 53 is connected to the output end of the lifting cylinder 52, and the other end is connected to the support 54, so as to drive the support 54 to move up and down.

[0030] The air path assembly includes an air receiving seat 55, a material taking seat 56, a connecting boss 57, an air seat 58, and a suction nozzle 59. The air receiving seat 55 is mounted on a support 54, with its upper end connected to an external vacuum generator and its lower end extending downward through the support 54. The material taking seat 56 is connected to the lower end of the air receiving seat 55. The connecting boss 57 is located at the bottom of the material taking seat 56 and protrudes downward. The air seat 58 is mounted on the connecting boss and has an air path inside, which is connected to the air receiving seat 55. The suction nozzle 59 is located at the bottom of the air seat 58 and is connected to the air path of the air seat 58. The suction nozzle 59 is made of a flexible material with a trumpet-shaped structure.

[0031] The air passage within the air seat 58 includes a main air passage, branch air passages, and air pipes. The main air passage is located in the middle of the air seat 58 and is coaxially arranged with the air seat 58. One end of the main air passage is connected to the air receiving seat 55. The air pipes include at least two, which are spaced apart along the circumference outside the main air passage and extend along the axial direction. The branch air passages include at least two, which are respectively connected to the main air passage and the air pipes to connect the main air passage and the air pipes.

[0032] The bottom of the air seat 58 is provided with at least two air holes A, which are respectively connected to at least two air tubes; the suction nozzle 59 is connected to the main air passage.

[0033] The suction assembly includes a suction seat 510 and an annular suction cavity 511. The suction seat 510 has an inwardly recessed circular air groove B in the middle. The outer diameter of the air groove B is not less than the outer diameter of the air seat 58. It is used to fit around the air seat 58. The outer side of the air groove B forms an outer edge. At least two mounting holes are provided on the outer edge at intervals. After the suction seat 510 is fitted onto the air seat 58, the outer edge is connected to the picking seat 56. The mounting holes on the outer edge are aligned with the mounting holes on the picking seat 56 in the axial direction. A spring post is inserted into the mounting holes of the picking seat 56 and the outer edge, which are aligned with each other, to flexibly and movablely connect the suction seat 510 to the picking seat 56 in the axial direction.

[0034] At least two suction holes C are arranged inside the air groove B; the annular suction cavity 511 is connected to the bottom of the suction base 510; the at least two suction holes C extend from the bottom of the air groove B into the annular suction cavity 511 along the axial direction until they reach the bottom of the annular suction cavity 511; when picking up material, the bottom of the annular suction cavity 511 contacts the annular brazing filler metal 0, and the annular brazing filler metal 0 generates an upward reaction force to push the suction base 510 upward, so that the bottom surface of the air groove B contacts and seals with the suction nozzle 59, the flexible suction nozzle 59 is squeezed upward, the air receiving base 55 draws air upward, and at the same time, a vacuum negative pressure is generated at the air hole A and the suction nozzle 59, wherein the suction nozzle 59 adsorbs and fixes the bottom surface of the air groove B, the air hole A generates a vacuum negative pressure in the air groove B and conducts it to the air hole C, so that the air hole C generates a vacuum negative pressure at the bottom of the annular suction cavity 511, so as to adsorb and fix the annular brazing filler metal 0.

[0035] Example 2: As an embodiment of the present invention, the present invention discloses a ring-shaped solder assembly machine, including a relay ring-shaped solder automatic pick-and-place mechanism.

[0036] Furthermore, this invention designs an automatic ring-shaped brazing filler metal pick-up and drop-off mechanism and its ring-shaped brazing filler metal assembly machine that uses a ring cavity to vacuum adsorption to pick up ring-shaped brazing filler metal. During the pick-up process, the air path is kept intact while flexible contact is achieved through the flexible connection of the flexible nozzle and the suction base.

[0037] This invention aims to provide a process for automatically assembling relay ring solder, specifically for the assembly of relay ring solder. The goal is to achieve automatic loading and unloading of the relay ring solder. Specifically, the invention uses a horizontally positioned support plate as its load-bearing structure. An external drive mechanism is connected to the support plate via a connector on its upper part to move the invention between workstations. A vertical support plate is positioned at the bottom of the support plate, with two loading heads on its front and rear sides, enabling the automatic loading and unloading of four ring solder pieces simultaneously, effectively improving the loading and unloading efficiency. The loading heads are slidably connected to vertically positioned slide rails on the support plate, guided and limited by the slide rails. Two sets of connecting seats are located on both sides of the support plate, each with a vertically mounted lifting cylinder. A lifting column is connected to the output end of the lifting cylinder, and the lifting column is connected to the loading head. The linear power output from the lifting cylinder drives the loading head to move up and down, allowing it to vertically approach or move away from the ring solder during loading and unloading. The invention is characterized by the following: the feeding head of the present invention further includes an air path assembly and a suction assembly. The air path assembly is used to draw in or draw in gas and use vacuum negative pressure to draw in or release the annular brazing filler metal. The suction assembly is connected to the air path assembly and is used to perform the suction or discharge action. Furthermore, the air path assembly uses a vertically mounted air receiving seat on the support as the air path connection structure. One end of the air receiving seat is connected to an external vacuum generator, and the other end extends downward and is connected to the feeding seat. The bottom of the feeding seat is provided with a downwardly protruding boss, and an air seat is provided on the boss. The air seat is provided with an air path, which includes a main air path, branch air paths, and air pipes. The main air path is located at the axial position of the air seat. The branch air paths include multiple ones, which are arranged at intervals along the circumferential direction on the side of the main air path and are connected to the main air path through air pipes. The upper end of the main air path is connected to the upper air receiving seat, and the lower end of the main air path is connected to a flexible material suction nozzle. Each branch air path forms air holes at intervals along the circumferential direction at the bottom of the air seat.Furthermore, the material suction assembly of the present invention includes a suction base and an annular suction cavity. The suction base has an inwardly recessed air groove in the middle, and the edge of the air groove forms a mounting boss. The mounting boss has a mounting hole. During installation, the suction base is sleeved onto the bottom of the air base from below, so that the air base is embedded in the air groove and the air base and the air groove are sealed together, forming a sealed space in the air groove. The mounting hole on the mounting boss and the mounting hole on the suction base are correspondingly arranged in the axial direction and connected by a spring post, so that the suction base and the air base are flexibly movable in the axial direction. That is, the bottom of the air base has a certain amount of space to move in the axial direction in the air groove, so as to have a flexible buffering capacity during the picking and placing of the annular brazing filler metal, effectively reducing the surface damage or bending of the annular brazing filler metal during the picking and placing process. The twisting mechanism ensures the quality of the annular brazing filler metal. Multiple suction holes are spaced circumferentially at the bottom of the air groove. The annular suction cavity is a cylindrical structure connected to the bottom of the suction base. Air holes at the bottom of the air groove extend axially downwards towards the annular suction cavity until they reach its bottom surface, forming circularly arranged air holes. During material handling, the annular suction cavity aligns with the annular brazing filler metal axially and then approaches and contacts it, ensuring the air holes adhere tightly to the surface of the annular brazing filler metal. The air base draws air upwards from an external vacuum generator, which then conducts the air through the air path within the air base to the air holes. The air holes generate upward suction within the air groove, creating a vacuum negative pressure that is transmitted along the annular suction cavity to the suction holes on its bottom surface. The vacuum negative pressure generated at the suction holes adsorbs and fixes the annular brazing filler metal. Furthermore, this invention utilizes the flexible and movable connection between the suction base and the air base. The spring force of the spring column enables flexible contact with the annular brazing filler metal during the pick-and-place process. Simultaneously, the main and branch air paths within the air base, along with the flexible suction nozzle at the bottom of the air base, ensure the integrity of the air path during the air base's movement. Specifically, when the annular suction cavity contacts the annular brazing filler metal, the upward reaction force of the filler metal pushes the annular suction cavity and air base upwards. The bottom of the air groove contacts the suction nozzle and presses it upwards, sealing the bottom of the air groove with the nozzle. The air base flexibly buffers the upward movement while simultaneously sealing with the nozzle. The vacuum negative pressure generated by the nozzle adsorbs and fixes the bottom of the air groove, thus adsorbing and fixing the suction base onto the air base. Simultaneously, the compressed material thickness from the suction nozzle... The air seat is designed to maintain a gap between its bottom and the bottom of the air groove, ensuring unobstructed airflow between the air holes and the air groove and its suction holes. The suction nozzle holds the suction seat in place, allowing the annular suction cavity to hold the annular brazing filler metal. This maintains the positional stability of the suction seat and the annular cavity during the transfer of the annular brazing filler metal between different workstations, preventing axial displacement and ensuring positional accuracy. During discharge, after the annular cavity places the annular brazing filler metal at the preset workstation, the vacuum pressure inside the air seat gradually decreases. Simultaneously, the suction holes at the bottom of the annular suction cavity release the annular brazing filler metal, and the vacuum pressure at the suction nozzle decreases, releasing the suction seat. Under the elastic force of the spring column, the suction seat pre-presses the annular brazing filler metal downwards to ensure its flatness.

[0038] The embodiments of this invention are merely illustrative of specific implementation methods and are not intended to limit the scope of protection. Those skilled in the art can make modifications based on these embodiments; therefore, all equivalent changes or modifications made in accordance with the scope of this invention's patent claims fall within the scope of this invention's patent claims.

Claims

1. An automatic feeding and discharging mechanism for relay ring-shaped brazing filler metal, used for picking up ring-shaped brazing filler metal with a ring-shaped sheet structure, comprising a support plate (1), a connector (2), a slide rail (3), and a bearing plate (4), wherein the connector (2) is connected to an external power mechanism, the support plate (1) is horizontally disposed at the bottom of the connector (2), and the bearing plate (4) is vertically disposed at the bottom of the support plate (1) and located at the middle position of the support plate (1), the slide rail (3) comprises at least two slide rails, the at least two slide rails (3) being disposed vertically on the side wall of the bearing plate (4), characterized in that: It also includes a pick-up head (5), which includes at least two pick-up heads (5) respectively disposed on both sides of the support plate (4) for picking up annular brazing filler metal (0). The material handling head (5) includes a connecting seat (51), a support (54), a drive assembly, an air passage assembly, and a suction assembly. The connecting seat (51) includes two connecting seats, which are respectively located on the left and right sides of the support plate (4) and extend horizontally outward to form a horizontal support platform. At least two sets of drive assemblies are provided on the connecting seat (51), with the output end of the drive assembly facing downward. The support (54) includes at least two supporting seats, which are respectively slidably connected to the slide rail (3) in the vertical direction and connected to the output end of the drive assembly. The drive assembly drives the support (54) to move up and down. The air passage assembly is located on the support (54) and extends downward through the support (54). The suction assembly is located at the lower end of the air passage assembly, and the suction assembly has an air chamber inside, which is connected to the air passage of the air passage assembly. The material suction component is flexibly and movable in the vertical direction to the air circuit component. When picking up material, the material suction component moves downward close to the annular brazing filler metal (0). The reaction force of the annular brazing filler metal (0) pushes the material suction component upward, so that it moves close to the suction nozzle (59) of the air circuit component. The air circuit component draws air upward, and at the same time, the suction nozzle (59) and the air hole (A) generate a vacuum negative pressure. The suction nozzle (59) adsorbs and fixes the material suction component, and a vacuum negative pressure is generated at the bottom of the material suction component to adsorb the annular brazing filler metal (0).

2. The relay ring-shaped brazing filler metal automatic loading and unloading mechanism according to claim 1, characterized in that: The slide rail (3) includes four rails, and the four slide rails (3) are arranged in pairs on the front and rear side walls of the support plate (4); the material taking head (5) includes four groups, and the four groups of material taking heads (5) are arranged in pairs on the left and right sides of the support plate (4), and are respectively arranged in correspondence with the four slide rails (3).

3. The relay ring-shaped brazing filler metal automatic loading and unloading mechanism according to claim 1, characterized in that: The drive assembly includes a lifting cylinder (52) and a lifting column (53). The lifting cylinder (52) is vertically mounted on the connecting seat (51), and its output end extends downward through the connecting seat (51). One end of the lifting column (53) is connected to the output end of the lifting cylinder (52), and the other end is connected to the support (54) so ​​as to drive the support (54) to move up and down.

4. The relay ring-shaped brazing filler metal automatic loading and unloading mechanism according to claim 1, characterized in that: The air circuit assembly includes an air receiving seat (55), a material taking seat (56), a connecting boss (57), an air seat (58), and a suction nozzle (59). The air receiving seat (55) is mounted on a support (54), with its upper end connected to an external vacuum generator and its lower end extending downward through the support (54). The material taking seat (56) is connected to the lower end of the air receiving seat (55). The connecting boss (57) is located at the bottom of the material taking seat (56) and protrudes downward. The air seat (58) is mounted on the connecting boss and has an air circuit inside, which is connected to the air receiving seat (55). The suction nozzle (59) is located at the bottom of the air seat (58) and is connected to the air circuit of the air seat (58). The suction nozzle (59) is made of a flexible material with a trumpet-shaped structure.

5. The relay ring-shaped brazing filler metal automatic loading and unloading mechanism according to claim 4, characterized in that: The air passage within the air seat (58) includes a main air passage, branch air passages, and air pipes. The main air passage is located in the middle of the air seat (58) and is coaxially arranged with the air seat (58). One end of the main air passage is connected to the air receiving seat (55). The air pipes include at least two air pipes, which are spaced apart along the circumferential direction on the outside of the main air passage and extend along the axial direction. The branch air passages include at least two air pipes, which are respectively connected to the main air passage and the air pipes to connect the main air passage and the air pipes.

6. The relay ring-shaped brazing filler metal automatic loading and unloading mechanism according to claim 5, characterized in that: The bottom of the air seat (58) is provided with at least two air holes (A), which are respectively connected to at least two air tubes; the suction nozzle (59) is connected to the main air passage.

7. The relay ring-shaped brazing filler metal automatic loading and unloading mechanism according to claim 4, characterized in that: The suction assembly includes a suction seat (510) and an annular suction cavity (511). The suction seat (510) has an inwardly recessed circular air groove (B) in the middle. The outer diameter of the air groove (B) is not less than the outer diameter of the air seat (58) and is used to be fitted on the outside of the air seat (58). The outer side of the air groove (B) forms an outer edge. At least two mounting holes are provided on the outer edge at intervals. After the suction seat (510) is fitted on the air seat (58), the outer edge is connected to the picking seat (56). The mounting holes on the outer edge are aligned with the mounting holes on the picking seat (56) in the axial direction. A spring column is inserted in the mounting holes of the picking seat (56) and the outer edge that are aligned with each other, so as to flexibly and movablely connect the suction seat (510) to the picking seat (56) in the axial direction.

8. The relay ring solder automatic loading and unloading mechanism according to claim 7, characterized in that: At least two suction holes (C) are arranged inside the air groove (B); the annular suction cavity (511) is connected to the bottom of the suction base (510); the at least two suction holes (C) extend from the bottom of the air groove (B) axially into the annular suction cavity (511) until they reach the bottom of the annular suction cavity (511); when picking up material, the bottom of the annular suction cavity (511) contacts the annular brazing filler metal (0), and the annular brazing filler metal (0) generates an upward reaction force to push the suction base (510) upward, so that the air groove... The bottom surface of (B) contacts and seals with the suction nozzle (59). The flexible suction nozzle (59) is squeezed upward, and the air receiving seat (55) draws air upward. At the same time, a vacuum negative pressure is generated at the air hole (A) and the suction nozzle (59). The suction nozzle (59) adsorbs and fixes the bottom surface of the air groove (B). The air hole (A) generates a vacuum negative pressure in the air groove (B) and conducts it to the air hole (C), so that the air hole (C) generates a vacuum negative pressure at the bottom of the annular suction cavity (511) so as to adsorb and fix the annular brazing filler metal (0).

9. A ring-shaped brazing filler metal assembly machine, characterized in that: The relay ring solder automatic loading and unloading mechanism includes any one of claims 1-8.

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