Tool, method and equipment for assembling valve seat, valve element and nut assembly part

Abstract

The embodiment of the invention provides a tool, method and equipment for assembling a valve seat, valve element and nut assembly part. The tool comprises an index plate provided with at least seven stations; the valve seat feeding assembly conveys a valve seat to a valve seat feeding station to be assembled. The valve element nut feeding and assembling assembly conveys the valve element nut to the valve element nut feeding and assembling station to be assembled. The nut connecting piece feeding and assembling assembly conveys nut connecting pieces to the nut connecting piece feeding and assembling station to be assembled. The nut connecting piece pressing assembly is arranged on the nut connecting piece pressing station and is used for pressing the nut connecting piece; the nut connecting piece welding assembly is arranged on the nut connecting piece welding station and is used for welding the nut connecting piece; the check ring feeding and assembling assembly conveys the check ring to the check ring feeding and assembling station to be assembled. The valve seat and valve element nut assembly part discharging assembly conducts discharging on valve seat and valve element nut assembly parts. And the index plate rotates based on a preset production takt to complete processes corresponding to the seven stations. Automatic assembly of valve seat, valve element and nut assembly parts is achieved.

Description

Technical Field

[0001] This invention relates to the field of electronic expansion valve technology, and in particular to a valve seat, valve core, and nut assembly tooling, a valve seat, valve core, and nut assembly method, and a valve seat, valve core, and nut assembly equipment. Background Technology

[0002] In the manufacturing process of electronic expansion valves, the assembly precision of the valve seat and valve core nut directly affects the valve's sealing performance, actuation sensitivity, and overall service life. Currently, the assembly of electronic expansion valves largely relies on manual operation, which presents numerous problems, such as low assembly efficiency, high dependence on operator skills, poor assembly consistency, easy damage to components, high maintenance costs, and poor equipment compatibility. Furthermore, as household air conditioning products become more diversified, different models of electronic expansion valves require different assembly processes, and traditional manual or semi-automated methods are insufficient to meet the demands for efficient, precise, and compatible assembly. Summary of the Invention

[0003] In view of the above problems, embodiments of the present invention are proposed to provide a valve seat, valve core, and nut assembly tooling, a valve seat, valve core, and nut assembly method, and a valve seat, valve core, and nut assembly equipment to overcome or at least partially solve the above problems.

[0004] To address the aforementioned problems, in a first aspect of the present invention, an embodiment of the present invention discloses a valve seat / valve core nut assembly fixture. The valve seat / valve core nut assembly fixture includes a valve seat, a valve core nut, a nut connecting piece, and a stop ring. The valve seat / valve core nut assembly fixture includes: The indexing plate is equipped with at least seven workstations, which are, in order, valve seat loading workstation, valve core nut loading and assembly workstation, nut connecting piece loading and assembly workstation, nut connecting piece pressing workstation, nut connecting piece welding workstation, stop ring loading and assembly workstation, and valve seat and valve core nut assembly unloading workstation. A valve seat feeding assembly is connected to the valve seat feeding station and is used to send the valve seat to the valve seat feeding station for assembly; A valve core nut feeding and assembly assembly assembly is connected to the valve core nut feeding and assembly station and is used to send the valve core nut to the valve core nut feeding and assembly station for assembly. A nut connecting piece feeding and assembly assembly assembly is connected to the nut connecting piece feeding and assembly station and is used to send the nut connecting piece to the nut connecting piece feeding and assembly station for assembly; A nut connecting piece pressing assembly is connected to the nut connecting piece pressing station and is used to press the nut connecting piece at the nut connecting piece pressing station. A nut connecting piece welding assembly is connected to the nut connecting piece welding station and is used to weld the nut connecting piece at the nut connecting piece welding station; A stop ring feeding and assembly assembly assembly is connected to the stop ring feeding and assembly station and is used to send the stop ring to the stop ring feeding and assembly station for assembly. A valve seat, valve core, and nut assembly unloading assembly is connected to the valve seat, valve core, and nut assembly unloading station and is used to unload the valve seat, valve core, and nut assembly. The indexing plate is used to rotate based on a preset production cycle to complete the processes corresponding to the seven workstations.

[0005] Optionally, the valve seat feeding assembly includes: First pillar component; A first linear motor module is connected to the first support assembly and is used to convey the valve seat; Take the valve seat clamp and install it on the first linear motor module to clamp the valve seat and move on the first linear motor module; The valve seat feeding and straightening mechanism is connected to the valve seat taking fixture and is used to orient the valve seat held by the valve seat taking fixture. A valve seat clamp is connected to the valve seat loading station and is used to clamp the valve seat after it has been oriented to the valve seat loading station.

[0006] Optionally, the valve core nut feeding assembly includes: Second pillar component; The second linear motor module is connected to the second support assembly and is used to convey the valve core nut; A valve core nut pick-and-place fixture is mounted on the second linear motor module to hold the valve core nut and move on the second linear motor module. The valve core nut rotating assembly is located between the valve core nut pick-and-place fixture and the valve core nut loading and assembly station, and is used to orient the valve core nut held by the valve core nut pick-and-place fixture.

[0007] Optionally, the nut connecting piece feeding assembly includes: Third pillar component; The third linear motor module is connected to the third support assembly and is used to convey the nut connecting piece; A vibratory feeder for nut connecting pieces is connected to the third linear motor module and is used for receiving the nut connecting pieces. A nut-and-connector clamp is installed on the third linear motor module to hold the nut-and-connector and move it on the third linear motor module. The nut connecting piece positioning assembly is connected to the nut connecting piece pick-and-place fixture and is used to guide and position the nut connecting piece during installation.

[0008] Optionally, the nut connecting piece feeding assembly further includes: The first vision component is located at the valve core nut loading and assembly station and is used to detect the part status of the nut connecting piece. The non-conforming product removal assembly is connected to the valve core nut loading and assembly station and is used to remove nut connecting pieces that are in a non-conforming state from the assembly line.

[0009] Optionally, the nut connecting piece pressing assembly includes: The downward support assembly is located at the downward pressing position of the nut connecting piece; A pressure rod, mounted on the pressure support assembly, is used to press the nut connecting piece; A buffer connector is located between the pressure rod and the nut connecting piece; A downward-pressing electric cylinder is installed on the downward-pressing support assembly and connected to the downward-pressing rod, used to drive the downward-pressing rod to move.

[0010] Optionally, the nut connecting piece welding assembly includes: The nut connecting piece support assembly is located at the welding station of the nut connecting piece; The welding torch assembly is mounted on the nut connecting plate support assembly.

[0011] Optionally, the stop ring feeding assembly includes: Fourth pillar component; The fourth linear motor module is connected to the fourth support assembly and is used to convey the stop ring; The stop ring vibratory feeder is connected to the fourth linear motor module and is used for feeding the stop ring; The stop ring clamp is installed on the fourth linear motor module to hold the stop ring and move it on the fourth linear motor module.

[0012] Optionally, the valve seat / core nut assembly cutting component includes: Fifth pillar component; The fifth linear motor module, connected to the fifth support assembly, is located at the unloading station of the valve seat valve core nut assembly and is used to transport the valve seat valve core nut assembly. A valve seat valve core nut assembly pick-and-place clamp is installed on the fifth linear motor module and is used to clamp the valve seat valve core nut assembly to move on the fifth linear motor module; A vision inspection placement component is connected to the fifth linear motor module and is used to place the valve seat, valve core, and nut assembly. The second vision component is connected to the vision detection placement component and is used to detect the assembly status of the valve seat valve core nut assembly. The non-conforming product unloading belt is connected to the visual inspection placement component and is used to unload the valve seat, valve core, and nut assembly that is in a non-conforming assembly state. The qualified product placement component is connected to the vision inspection placement component and is used to unload the valve seat, valve core, and nut assembly that is in a qualified assembly state.

[0013] Optionally, the indexing plate has eight workstations, and the indexing plate further includes: an empty workstation. The valve seat loading station, the valve core nut loading and assembly station, the nut connecting piece loading and assembly station, the nut connecting piece pressing station, the nut connecting piece welding station, the stop ring loading and assembly station, the valve seat and valve core nut assembly unloading station, and the empty station are evenly distributed counterclockwise along the indexing plate.

[0014] In a second aspect, embodiments of the present invention disclose a method for assembling a valve seat, valve core, and nut assembly, applied to the valve seat, valve core, and nut assembly fixture described above, the method comprising: The indexing plate is rotated according to the preset production cycle. Each time the indexing plate rotates, the control valve seat feeding assembly, valve core nut feeding assembly, nut connecting piece feeding assembly, nut connecting piece pressing assembly, nut connecting piece welding assembly, stop ring feeding assembly, and valve seat / valve core nut assembly unloading assembly are activated.

[0015] In a third aspect of the present invention, an embodiment of the present invention discloses a valve seat, valve core, and nut assembly equipment, including a controller and a valve seat, valve core, and nut assembly fixture as described above, wherein the controller is used to control the valve seat, valve core, and nut assembly fixture to perform the valve seat, valve core, and nut assembly process.

[0016] The embodiments of the present invention have the following advantages: This invention embodiment utilizes an indexing plate with at least seven workstations. These seven workstations are, in sequence: a valve seat loading workstation, a valve core nut loading and assembly workstation, a nut connecting piece loading and assembly workstation, a nut connecting piece pressing workstation, a nut connecting piece welding workstation, a stop ring loading and assembly workstation, and a valve seat / valve core nut assembly unloading workstation. A valve seat loading assembly is connected to the valve seat loading workstation and is used to deliver the valve seat to the valve seat loading workstation for assembly. A valve core nut loading and assembly assembly assembly is connected to the valve core nut loading and assembly workstation and is used to deliver the valve core nut to the valve core nut loading and assembly workstation for assembly. A nut connecting piece loading and assembly assembly assembly is connected to the nut connecting piece loading and assembly workstation and is used to deliver the nut connecting piece to the nut connecting piece loading and assembly workstation. The assembly is performed at the following stations: a nut connecting piece pressing assembly, connected to the nut connecting piece pressing station, for pressing the nut connecting piece at the nut connecting piece pressing station; a nut connecting piece welding assembly, connected to the nut connecting piece welding station, for welding the nut connecting piece at the nut connecting piece welding station; a stop ring feeding assembly assembly, connected to the stop ring feeding assembly station, for feeding the stop ring to the stop ring feeding assembly station for assembly; a valve seat valve core nut assembly unloading assembly, connected to the valve seat valve core nut assembly unloading station, for unloading the valve seat valve core nut assembly; and an indexing plate for rotating based on a preset production cycle to complete the processes corresponding to the seven stations. As the indexing plate rotates to each station, the valve seat loading assembly, valve core nut, nut connecting piece loading assembly, nut connecting piece pressing assembly, nut connecting piece welding assembly, stop ring loading assembly, and valve seat / valve core nut assembly unloading assembly each perform their corresponding processes, thereby automating the assembly process and improving assembly efficiency. Attached Figure Description

[0017] Figure 1 This is a first-view structural diagram of an embodiment of the valve seat, valve core, and nut assembly tooling of the present invention; Figure 2 This is a second-view structural diagram of an embodiment of the valve seat, valve core, and nut assembly tooling of the present invention; Figure 3 This is a schematic diagram illustrating the structure of an example of a valve seat, valve core, and nut assembly according to the present invention. Figure 4 This is an exploded view of an example of a valve seat, valve core, and nut assembly according to the present invention. Figure 5 This is a schematic diagram of the indexing plate of an embodiment of the valve seat, valve core, and nut assembly tooling of the present invention; Figure 6 This is a schematic diagram of the structure of a valve seat feeding assembly according to an embodiment of the valve seat, valve core, and nut assembly tooling of the present invention; Figure 7 This is a schematic diagram of the structure of a valve core nut loading and assembly assembly component according to an embodiment of the valve seat and valve core nut assembly tooling of the present invention; Figure 8 This is a schematic diagram of the nut connecting piece feeding and assembly assembly assembly of a valve seat valve core nut assembly tooling embodiment of the present invention; Figure 9 This is a schematic diagram of the nut connecting piece pressing assembly of an embodiment of the valve seat valve core nut assembly tooling of the present invention; Figure 10 This is a schematic diagram of the structure of a nut connecting piece welding assembly according to an embodiment of the valve seat and valve core nut assembly tooling of the present invention; Figure 11 This is a schematic diagram of the structure of a stop ring feeding assembly assembly component according to an embodiment of the valve seat, valve core, and nut assembly tooling of the present invention; Figure 12 This is a schematic diagram of the structure of the valve seat, valve core, and nut assembly tooling assembly assembly of an embodiment of the present invention; Figure 13 This is a flowchart illustrating the steps of an embodiment of the valve seat, valve core, and nut assembly method of the present invention.

[0018] Explanation of reference numerals in the attached figures: 100 - Valve seat and valve core nut assembly; 110 - Valve seat; 120 - Valve core nut; 130 - Nut connecting piece; 140 - Stop ring; 200-Indexing plate, 210-Valve seat loading station, 220-Valve core nut loading and assembly station, 230-Nut connecting piece loading and assembly station, 240-Nut connecting piece pressing station, 250-Nut connecting piece welding station, 260-Stop ring loading and assembly station, 270-Valve seat, valve core, and nut assembly unloading station, 280-Empty station; 300-Valve seat feeding assembly, 310-First support assembly, 311-Support support seat, 312-Support shaft, 313-Connecting seat, 320-First linear motor module, 330-Valve seat picking fixture, 331-Valve seat picking fixture mounting plate, 332-Valve seat picking cylinder, 333-Valve seat picking cylinder connecting plate, 334-Valve seat picking claw cylinder, 335-Valve seat picking claw, 340-Valve seat feeding and straightening mechanism, 341-Straightening mechanism base, 342-Straightening mechanism claw cylinder, 343-Straightening mechanism claw, 350-Valve seat releasing fixture, 351-Valve seat releasing mounting plate, 352-Valve seat releasing cylinder, 353-Valve seat releasing cylinder connecting plate, 354-Valve seat releasing claw cylinder, 355-Valve seat releasing claw; 400-Valve core nut loading assembly, 410-Second support assembly, 420-Second linear motor module, 430-Valve core nut pick-and-place fixture, 431-Valve core nut pick-and-place fixture mounting plate, 432-Valve core nut pick-and-place fixture picking cylinder, 433-Valve core nut pick-and-place fixture cylinder connecting plate, 434-Valve core nut pick-and-place fixture gripper cylinder, 435-Valve core nut pick-and-place fixture gripper, 440-Valve core nut rotating assembly, 441-Rotating assembly mounting bracket, 442-First drive pulley, 443-First servo motor, 444-First belt tensioner, 445-First transmission belt, 448-First driven pulley, 447-Rotating support assembly; 500-Nut connecting piece feeding assembly, 510-Third support assembly, 520-Third linear motor module, 530-Nut connecting piece vibratory plate, 540-Nut connecting piece pick-and-place fixture, 541-Nut connecting piece pick-and-place fixture mounting plate, 542-Nut connecting piece pick-and-place fixture picking cylinder, 543-Nut connecting piece pick-and-place fixture cylinder connecting plate, 544-Suction nozzle, 550-Nut connecting piece positioning assembly, 551-Second drive pulley, 552-Positioning assembly mounting bracket, 553-Second transmission belt, 554-Second belt tensioner, 555-Second servo motor, 556-Second driven pulley, 560-First vision assembly, 570-Non-conforming product unloading assembly; 600-Nut connecting plate pressing assembly, 610-Pressing support assembly, 620-Pressing rod, 630-Buffer connector, 640-Pressing electric cylinder; 700-Nut connecting piece welding assembly, 710-Nut connecting piece support assembly, 720-Welding torch assembly, 730-Safety cylinder; 800-Stop ring feeding assembly, 810-Fourth support assembly, 820-Fourth linear motor module, 830-Stop ring vibratory feeder, 840-Stop ring pick-and-place fixture, 841-Stop ring pick-and-place fixture mounting plate, 842-Stop ring pick-and-place cylinder, 843-Stop ring pick-and-place cylinder connecting plate, 844-Stop ring pick-and-place gripper cylinder, 845-Stop ring pick-and-place gripper; 900-Valve seat, valve core, and nut assembly unloading component; 910-Fifth support component; 920-Fifth linear motor module; 930-Vision inspection placement component; 940-Second vision component; 950-Non-conforming product unloading belt; 960-Conforming product placement component; 970-Valve seat, valve core, and nut assembly picking and unloading fixture; 971-Valve seat, valve core, and nut assembly fixture mounting plate; 972-Valve seat, valve core, and nut assembly picking cylinder; 973-Valve seat, valve core, and nut assembly cylinder connecting plate; 974-Valve seat, valve core, and nut assembly gripper cylinder; 975-Valve seat, valve core, and nut assembly gripper. Detailed Implementation

[0019] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0020] Reference Figure 1 This diagram shows a first-view structural diagram of an embodiment of a valve seat and valve core nut assembly tooling according to the present invention; see reference to Figure 2 This diagram shows a second-view structural view of an embodiment of a valve seat / valve core nut assembly tooling according to the present invention; wherein, the valve seat / valve core nut assembly 100 includes a valve seat 110, a valve core nut 120, a nut connecting piece 130, and a stop ring 140. A schematic diagram of the valve seat / valve core nut assembly 100 can be found in [reference needed]. Figure 3 and Figure 4 The valve seat and valve core nut assembly 100 consists of, from bottom to top, a valve seat 110, a valve core nut 120, a nut connecting piece 130, and a stop ring 140 along its axial direction. The valve seat 110, valve core nut 120, nut connecting piece 130, and stop ring 140 can be mounted on the same axis to form the valve seat and valve core nut assembly 100.

[0021] The assembly tooling for the valve seat, valve core, and nut assembly includes: The indexing plate 200 is equipped with at least seven workstations, which are, in order, valve seat loading workstation 210, valve core nut loading and assembly workstation 220, nut connecting piece loading and assembly workstation 230, nut connecting piece pressing workstation 240, nut connecting piece welding workstation 250, stop ring loading and assembly workstation 260, and valve seat and valve core nut assembly unloading workstation 270. The valve seat feeding assembly 300 is connected to the valve seat feeding station 210 and is used to send the valve seat 110 to the valve seat feeding station 210 for assembly. The valve core nut loading and assembly assembly 400 is connected to the valve core nut loading and assembly station 220 and is used to send the valve core nut 120 to the valve core nut loading and assembly station 220 for assembly. The nut connecting piece feeding and assembly assembly 500 is connected to the nut connecting piece feeding and assembly station 230 and is used to send the nut connecting piece 130 to the nut connecting piece feeding and assembly station 230 for assembly. The nut connecting piece pressing assembly 600 is connected to the nut connecting piece pressing station 240 and is used to press the nut connecting piece 130 on the nut connecting piece pressing station 240. The nut connecting piece welding assembly 700 is connected to the nut connecting piece welding station 250 and is used to weld the nut connecting piece 130 on the nut connecting piece welding station 250. The stop ring feeding and assembly assembly 800 is connected to the stop ring feeding and assembly station 260 and is used to send the stop ring 140 to the stop ring feeding and assembly station 260 for assembly. The valve seat, valve core, and nut assembly unloading component 900 is connected to the valve seat, valve core, and nut assembly unloading station 270 and is used to unload the valve seat, valve core, and nut assembly 100. The indexing plate 200 is used to rotate based on a preset production cycle to complete the processes corresponding to the seven workstations.

[0022] In this embodiment of the invention, the assembly fixture for the valve seat, valve core, and nut assembly may include an indexing plate 200, a valve seat feeding assembly 300, a valve core and nut feeding and assembly assembly 400, a nut connecting piece feeding and assembly assembly 500, a nut connecting piece pressing assembly 600, a nut connecting piece welding assembly 700, a stop ring feeding and assembly assembly 800, and a valve seat, valve core, and nut assembly unloading assembly 900. The indexing plate 200 has at least seven workstations, which are, in order, a valve seat feeding workstation 210, a valve core and nut feeding and assembly workstation 220, a nut connecting piece feeding and assembly workstation 230, a nut connecting piece pressing workstation 240, a nut connecting piece welding workstation 250, a stop ring feeding and assembly workstation 260, and a valve seat, valve core, and nut assembly unloading workstation 270. The indexing plate 200 can rotate sequentially along the valve seat loading station 210, valve core nut loading and assembly station 220, nut connecting piece loading and assembly station 230, nut connecting piece pressing station 240, nut connecting piece welding station 250, stop ring loading and assembly station 260, and valve seat / valve core nut assembly unloading station 270, thereby performing the corresponding process at each station. Specifically, at the valve seat loading station 210, the valve seat 110 is loaded and assembled. At the valve core nut loading and assembly station 220, the valve core nut 120 is loaded and assembled. At the nut connecting piece loading and assembly station 230, the nut connecting piece 130 is loaded and assembled. At the nut connecting piece pressing station 240, the nut connecting piece 130 is pressed down. At the nut connecting piece welding station 250, the nut connecting piece 130 is welded. The process of loading and assembling the stop ring 140 is carried out at the stop ring loading and assembly station 260. The process of unloading the valve seat, valve core, and nut assembly 100 is carried out at the valve seat, valve core, and nut assembly unloading station 270 to transport the valve seat, valve core, and nut assembly 100.

[0023] The valve seat feeding assembly 300 is connected to the valve core nut feeding and assembly station 220, feeding the valve seat 110 to the valve seat feeding station 210 for assembly. The valve core nut feeding and assembly assembly 400 is connected to the valve seat feeding station 210, feeding the valve seat 110 to the valve seat feeding station 210, and assembling it with the valve core nut 120 at the valve seat feeding station 210 to achieve the assembly of the valve core nut 120. The nut connecting piece feeding and assembly assembly 500 is connected to the nut connecting piece feeding and assembly station 230, feeding the nut connecting piece 130 to the nut connecting piece feeding and assembly station 230; and assembling the nut connecting piece 130 with the assembly containing the valve core nut 120 at the nut connecting piece feeding and assembly station 230 to achieve the assembly of the nut connecting piece 130. The nut connecting piece pressing assembly 600 is connected to the nut connecting piece pressing station 240. The nut connecting piece pressing assembly 600 presses down the nut connecting piece 130 at the nut connecting piece pressing station 240, achieving press-fitting of the nut connecting piece 130. The nut connecting piece welding assembly 700 is connected to the nut connecting piece welding station 250. At the nut connecting piece welding station 250, the nut connecting piece welding assembly 700 welds the nut connecting piece 130, allowing the valve seat 110, valve core nut 120, and nut connecting piece 130 to be fixedly connected. The stop ring feeding and assembly assembly 800 is connected to the stop ring feeding and assembly station 260. The stop ring feeding and assembly assembly 800 delivers the stop ring 140 to the stop ring feeding and assembly station 260, where the stop ring 140 is assembled to form the valve seat / valve core nut assembly 100. The valve seat, valve core, and nut assembly unloading assembly 900 is connected to the valve seat, valve core, and nut assembly unloading station 270. The valve seat, valve core, and nut assembly 100 is unloaded at the valve seat, valve core, and nut assembly unloading station 270 and flows out of the tooling for the next stage of processing.

[0024] For the 200-degree scale plate, please refer to... Figure 5The indexing plate 200 can be an eight-station indexing plate 200, with eight stations. Specifically, the indexing plate 200 can have a valve seat loading station 210, a valve core nut loading and assembly station 220, a nut connecting piece loading and assembly station 230, a nut connecting piece pressing station 240, a nut connecting piece welding station 250, a stop ring loading and assembly station 260, a valve seat / valve core nut assembly unloading station 270, and an empty station 280. The valve seat loading station 210, valve core nut loading and assembly station 220, nut connecting piece loading and assembly station 230, nut connecting piece pressing station 240, nut connecting piece welding station 250, stop ring loading and assembly station 260, valve seat / valve core nut assembly unloading station 270, and empty station 280 are evenly distributed counterclockwise along the indexing plate 200, with each station spaced 45 degrees apart. All materials are clamped by clamping devices at each station of the eight-station indexing plate 200. The indexing plate 200 drives the materials and clamping devices to rotate counterclockwise to complete the connection of each assembly process, thereby completing the assembly of the valve seat, valve core and nut assembly 100.

[0025] For valve seat feeding assembly 300, please refer to... Figure 6 The valve seat feeding assembly 300 includes: First pillar component 310; The first linear motor module 320 is connected to the first support assembly 310 and is used to convey the valve seat 110. Take the valve seat clamp 330 and install it on the first linear motor module 320 to clamp the valve seat 110 and move on the first linear motor module 320; The valve seat feeding and straightening mechanism 340 is connected to the valve seat taking clamp 330 and is used to orient the valve seat 110 held by the valve seat taking clamp 330. A valve seat clamp 350 is connected to the valve seat loading station 210 and is used to clamp the valve seat 110 after orientation correction in the valve seat loading station 210.

[0026] The valve seat loading assembly 300 may include a first support assembly 310, a first linear motor module 320, a valve seat pick-up clamp 330, a valve seat loading correction mechanism 340, and a valve seat release clamp 350. The first support assembly 310 is fixed to a base platform. The first linear motor module 320 is connected to the first support assembly 310 and can transport the valve seat 110 along its own motion trajectory. The valve seat pick-up clamp 330 is mounted on the first linear motor module 320, clamps the valve seat 110 on the first linear motor module 320, and moves on the first linear motor module 320. The valve seat loading correction mechanism 340 is connected to the valve seat pick-up clamp 330 and can orient the valve seat 110 held by the valve seat pick-up clamp 330. The valve seat release clamp 350 is located at the valve seat loading station 210 and clamps the oriented valve seat 110 on the valve seat loading station 210, thereby achieving clamping.

[0027] The assembly process at valve seat loading station 210 can be as follows: The valve seat feeding assembly 300 is mounted on the base via the first support assembly 310, and the first linear motor module 320 is mounted on the first support assembly 310. Two sets of valve seat picking clamps 330 are provided, each mounted on the first linear motor module 320 to achieve reciprocating motion. This allows for the simultaneous gripping of two valve seats 110, which are then placed sequentially on the valve seat feeding and straightening mechanism 340. The orientation of the valve seats 110 is corrected so that the valve seat placing clamp 350, mounted on the first linear motor module 320, can grip the valve seats 110 and place them on the valve seat feeding station 210 of the indexing plate 200. After placement, the indexing plate 200 clamps the valve seats 110 and simultaneously rotates counterclockwise to the valve core nut feeding and assembly station 220.

[0028] Further, the first support assembly 310 may include a support base 311, a support shaft 312, and a connecting base 313. The valve seat retrieval fixture 330 may include a valve seat retrieval fixture mounting plate 331, a valve seat retrieval cylinder 332, a valve seat retrieval cylinder connecting plate 333, a valve seat retrieval jaw cylinder 334, and a valve seat retrieval jaw 343. The valve seat loading and straightening mechanism 340 may include a straightening mechanism base 341, a straightening mechanism jaw cylinder 342, and a straightening mechanism jaw 343. The valve seat release fixture 350 includes a valve seat release mounting plate 351, a valve seat release cylinder 352, a valve seat release cylinder connecting plate 353, a valve seat release jaw cylinder 354, and a valve seat release jaw 355.

[0029] For valve core nut loading and assembly assembly 400, please refer to... Figure 7 The valve core nut feeding assembly 400 includes: Second pillar component 410; The second linear motor module 420 is connected to the second support assembly 410 and is used to convey the valve core nut 120. A valve core nut pick-and-place clamp 430 is mounted on the second linear motor module 420 to hold the valve core nut 120 and move on the second linear motor module 420. The valve core nut rotating assembly 440 is located between the valve core nut pick-and-place fixture 430 and the valve core nut loading and assembly station 220, and is used to align the valve core nut 120 held by the valve core nut pick-and-place fixture 430.

[0030] The valve core nut loading and assembly assembly 400 can complete the loading and assembly of the valve core nut 120. The valve core nut loading and assembly assembly 400 may include a second support assembly 410, a second linear motor module 420, a valve core nut pick-and-place fixture 430, and a valve core nut rotating assembly 440. The second support assembly 410 is fixed on a base platform, supporting the other components of the valve core nut loading and assembly assembly 400. The second linear motor module 420 is connected to the second support assembly 410 and can transport the valve core nut 120. The valve core nut pick-and-place fixture 430 is mounted on the second linear motor module 420, clamps the valve core nut 120, and moves it on the second linear motor module 420, thereby delivering the valve core nut 120 to the valve core nut loading and assembly station 220. The valve core nut rotating assembly 440 is installed between the valve core nut pick-and-place fixture 430 and the valve core nut loading and assembly station 220. It can guide the valve core nut 120 held by the valve core nut pick-and-place fixture 430 to facilitate installation.

[0031] Specifically, the various components of the valve core nut loading and assembly assembly 400 can be composed of the following parts. The valve core nut pick-and-place fixture 430 may include a valve core nut pick-and-place fixture mounting plate 431, a valve core nut pick-and-place fixture picking cylinder 432, a valve core nut pick-and-place fixture cylinder connecting plate 433, a valve core nut pick-and-place fixture gripper cylinder 434, and a valve core nut pick-and-place fixture gripper 435. The valve core nut rotating assembly 440 may include a rotating assembly mounting bracket 441, a first drive pulley 442, a first servo motor 443, a first belt tensioner 444, a first transmission belt 445, a first driven pulley 446, and a rotating support assembly 447.

[0032] For the valve core nut 120 to be loaded and assembled onto the valve seat 110, the valve core nut loading and assembly assembly 400 is mounted on the base via the second support assembly 410. The second linear motor module 420 is mounted on the second support assembly 410, and the valve core nut pick-and-place fixture 430 is mounted on the second linear motor module 420. The valve core nut 120 is picked up from the material basket and placed on the valve core nut rotating assembly 440. The first servo motor 443 drives the first transmission belt 445 and the rotating support assembly 447 to rotate. The rotating support assembly 447 guides the valve core nut 120 to be aligned. The two sets of valve core nut pick-and-place fixtures 430 on the second linear motor module 420 pick up the valve core nut 120 after alignment and place it at the valve core nut loading and assembly station 220 of the indexing plate 200. Then the indexing plate 200 rotates counterclockwise to the nut connecting piece loading and assembly station 230.

[0033] For the nut connecting piece feeding and assembly assembly 500, please refer to [the relevant documentation]. Figure 8 The nut connecting piece feeding assembly 500 includes: Third pillar component 510; The third linear motor module 520 is connected to the third support assembly 510 and is used to convey the nut connecting piece 130. The nut connecting piece vibratory plate 530 is connected to the third linear motor module 520 and is used to feed the nut connecting piece 130. The nut connecting piece clamp 540 is installed on the third linear motor module 520 and is used to clamp the nut connecting piece 130 to move on the third linear motor module 520. The nut connecting piece positioning assembly 550 is connected to the nut connecting piece pick-and-place clamp 540 and is used to install and guide the nut connecting piece 130.

[0034] The nut connecting piece feeding and assembly assembly 500 may include a third support assembly 510, a third linear motor module 520, a nut connecting piece vibratory feeder 530, a nut connecting piece pick-and-place fixture 540, and a nut connecting piece positioning assembly 550. The third support assembly 510 is fixed to a base platform. The third linear motor module 520 is connected to the third support assembly 510 and can transport the nut connecting piece 130 to the nut connecting piece feeding and assembly station 230. The nut connecting piece vibratory feeder 530 is connected to the third linear motor module 520 and can feed nuts to the nut connecting piece pick-and-place fixture 540 through vibration, thereby receiving the nut connecting piece 130. The nut connecting piece pick-and-place fixture 540 is mounted on the third linear motor module 520 and holds the nut connecting piece 130, moving it on the third linear motor module 520 to deliver the nut connecting piece 130 to the nut connecting piece feeding and assembly station 230. The nut connecting piece positioning assembly 550 is connected to the nut connecting piece pick-and-place clamp 540 to guide and position the nut connecting piece 130 during installation, thereby ensuring that the nut connecting piece 130 can be installed correctly.

[0035] Specifically, the components of the nut connecting piece feeding assembly 500 may include the following parts: The nut connecting piece clamp 540 includes a nut connecting piece clamp mounting plate 541, a nut connecting piece clamp picking cylinder 542, a nut connecting piece clamp cylinder connecting plate 543, and a suction nozzle 544. The nut connecting piece positioning assembly 550 includes a second drive pulley 551, a positioning assembly mounting bracket 552, a second transmission belt 553, a second belt tensioning pulley 554, a second servo motor 555, and a second driven pulley 556.

[0036] Furthermore, the nut connecting piece feeding assembly 500 also includes: The first vision component 560 is located at the valve core nut loading and assembly station 220 and is used to detect the part status of the nut connecting piece 130. The non-conforming product removal assembly 570 is connected to the valve core nut loading and assembly station 220 and is used to remove the nut connecting piece 130 whose part status is non-conforming.

[0037] In addition to the assembly described above, the assembly status of the nut connecting piece 130 can also be identified, and non-conforming pieces can be removed from the assembly line to prevent them from flowing into the next process. The first vision component 560 is located at the valve core nut loading and assembly station 220, and can acquire images of the nut connecting piece 130 after installation. Based on the features in the image of the nut connecting piece 130 after installation, the part status of the nut connecting piece 130 is detected. The non-conforming product removal component 570 is connected to the valve core nut loading and assembly station 220 and removes the nut connecting piece 130 with a non-conforming part status from the assembly line. The part status of the nut connecting piece 130 can be identified using various image comparison methods, such as comparing the image of the nut connecting piece 130 after installation with a preset image of qualified installation. If they match, it is a qualified product and the part status is qualified; otherwise, it is a non-conforming product, and the part status of the nut connecting piece 130 is determined to be non-conforming.

[0038] The process of feeding the nut connecting piece 130 and pre-assembling it at the nut connecting piece feeding assembly station 230 is as follows: The nut connecting piece feeding and assembly assembly 500 is mounted on the base via the third support assembly 510, and the third linear motor module 520 is mounted on the third support assembly 510. The nut connecting piece pick-and-place fixture 540 is mounted on the third linear motor module 520. The nut connecting piece 130 is fed via the nut connecting piece vibratory feeder 530. The nut connecting piece pick-and-place fixture 540, driven by a picking cylinder moving downwards, simultaneously picks up the nut connecting piece 130 through a suction nozzle. Driven by the third linear motor module 520, the nut connecting piece pick-and-place fixture 540 places the nut connecting piece 130 onto the nut connecting piece positioning assembly 550 for guidance and positioning. Simultaneously, the first vision assembly 560 performs visual recognition processing. After completion, the nut connecting piece pick-and-place fixture 540 clamps the nut connecting piece. Defective products are placed at the defective product unloading assembly 570, while qualified products are placed at the nut connecting piece feeding and assembly station 230 for pre-assembly with the valve seat 110 and valve core nut 120. Then the indexing plate 200 rotates counterclockwise to the nut connecting piece pressing position 240.

[0039] For the nut connecting plate pressing assembly 600, please refer to... Figure 9 The nut connecting piece pressing assembly 600 includes: The downward support assembly 610 is located on the downward pressing station 240 of the nut connecting piece; The pressure rod 620 is installed on the pressure support assembly 610 and is used to press the nut connecting piece 130; A buffer connector 630 is located between the pressure rod 620 and the nut connecting piece 130; A downward pressing electric cylinder 640 is installed on the downward pressing support assembly 610 and connected to the downward pressing rod 620, used to drive the downward pressing rod 620 to move.

[0040] The nut connecting piece pressing assembly 600 includes a pressing support assembly 610, a pressing rod 620, a buffer connector 630, and a pressing electric cylinder 640. The pressing support assembly 610 is mounted on the nut connecting piece pressing station 240. The pressing rod 620 is mounted on the pressing support assembly 610 and can contact the nut connecting piece 130 to press it into place. The buffer connector 630 is located between the pressing rod 620 and the nut connecting piece 130. The buffer connector 630 provides pressure buffering between the pressing rod 620 and the nut connecting piece 130, preventing deformation and damage to the nut connecting piece 130 due to impact. The pressing electric cylinder 640 is mounted on the pressing support assembly 610 and connected to the pressing rod 620. With power supply, it can drive the pressing rod 620 to move, allowing it to press the nut connecting piece 130 into place.

[0041] At the nut connecting piece pressing station 240, the nut connecting piece 130 can be pressed tightly. The pressing support assembly 610 can be installed on the base, and the pressing electric cylinder 640 is installed on the pressing support assembly 610. The pressing electric cylinder 640 drives the buffer connector 630 and the pressing rod 620 to move downward, pressing the nut connecting piece 130 with the valve seat 110 and the valve core nut 120. At the same time, the buffer connector 630 plays a buffering role to prevent the material from being crushed. After completion, the pressing electric cylinder 640 resets, and the indexing plate 200 rotates counterclockwise to the nut connecting piece welding station 250.

[0042] For the nut connecting piece welding assembly 700, please refer to... Figure 10 The nut connecting piece welding assembly 700 includes: Nut connecting piece support assembly 710 is located on the nut connecting piece welding station 250; The welding torch assembly 720 is mounted on the nut connecting piece support assembly 710.

[0043] The nut connector welding assembly 700 may include a nut connector support assembly 710 and a welding torch assembly 720. The nut connector support assembly 710 is located on the nut connector welding station 250 and supports the nut connector 130 for welding. The welding torch assembly 720 is mounted on the nut connector support assembly 710 and uses high temperature to weld the nut connector 130. Additionally, a protective cylinder 730 may be provided; during welding, the protective cylinder 730 moves a protective cover to prevent weld slag and other debris from splashing out.

[0044] The welding process for the nut connecting piece 130 can be as follows: the nut connecting piece support assembly 710 positions and supports the assembly of the nut connecting piece 130, valve seat 110, and valve core nut 120; the two sets of welding gun assemblies 720 work simultaneously to perform welding.

[0045] For the stop ring feeding and assembly assembly component 800, please refer to... Figure 11 The stop ring feeding assembly 800 includes: Fourth pillar component 810; The fourth linear motor module 820 is connected to the fourth support assembly 810 and is used to convey the stop ring 140. The stop ring vibratory plate 830 is connected to the fourth linear motor module 820 and is used to feed the stop ring 140. The stop ring clamp 840 is installed on the fourth linear motor module 820 to hold the stop ring 140 and move it on the fourth linear motor module 820.

[0046] The stop ring feeding and assembly assembly 800 includes a fourth support assembly 810, a fourth linear motor module 820, a stop ring vibratory feeder 830, and a stop ring pick-and-place fixture 840. The fourth linear motor module 820 can be connected to the fourth support assembly 810 to transport the stop ring 140 to the stop ring feeding and assembly station 260. The stop ring vibratory feeder 830 is connected to the fourth linear motor module 820 and can feed the stop ring 140 to the stop ring pick-and-place fixture 840 via vibration, thus receiving the stop ring 140. The stop ring pick-and-place fixture 840 is mounted on the fourth linear motor module 820, clamps the stop ring 140, and moves it on the fourth linear motor module 820, thereby delivering the stop ring 140 to the stop ring feeding and assembly station 260.

[0047] Specifically, the stop ring pick-and-place fixture 840 may include a stop ring pick-and-place fixture mounting plate 841, a stop ring pick-and-place material pick-and-place cylinder 842, a stop ring pick-and-place cylinder connecting plate 843, a stop ring pick-and-place claw cylinder 844, and a stop ring pick-and-place claw 845.

[0048] The assembly process for the stop ring 140 can be as follows: The stop ring feeding assembly 800 is mounted on the base via the fourth support assembly 810, and the fourth linear motor module 820 is mounted on the fourth support assembly 810. The stop ring 140 pick-up fixture is mounted on the fourth linear motor module 820. The stop ring 140 is fed via the stop ring vibratory feeder 830. The stop ring pick-up cylinder 842 on the stop ring pick-up fixture 840 drives the stop ring pick-up gripper cylinder 844 to move downwards. The stop ring pick-up gripper 845 picks up the stop ring 140, and then, driven by the fourth linear motor module 820, assembles the stop ring 140 with the valve seat 110, valve core nut 120, and nut connecting piece 130 assembly at the stop ring feeding assembly station 260, forming the valve seat / valve core nut assembly 100. After completion, the indexing plate 200 rotates counterclockwise to the valve seat / valve core nut assembly unloading station 270.

[0049] For the blanking assembly of valve seat, valve core, and nut parts, please refer to 900. Figure 12 The valve seat, valve core, and nut assembly blanking component 900 includes: Fifth pillar component 910; The fifth linear motor module 920 is connected to the fifth support assembly 910 and is located at the valve seat valve core nut assembly unloading station 270, used to transport the valve seat valve core nut assembly 100. A valve seat valve core nut assembly pick-and-place clamp 970 is installed on the fifth linear motor module 920 and is used to clamp the valve seat valve core nut assembly 100 to move on the fifth linear motor module 920. The visual inspection placement component 930 is connected to the fifth linear motor module 920 and is used to place the valve seat valve core nut assembly 100. The second vision component 940 is connected to the vision detection placement component 930 and is used to detect the assembly status of the valve seat valve core nut assembly 100. The non-conforming product unloading belt 950 is connected to the visual inspection placement component 930 and is used to unload the valve seat valve core nut assembly 100 whose assembly state is non-conforming. The qualified product placement component 960 is connected to the vision inspection placement component 930 and is used to unload the valve seat valve core nut assembly 100 whose assembly state is qualified.

[0050] The valve seat / core nut assembly unloading component 900 may include a fifth support component 910, a fifth linear motor module 920, a vision inspection and placement component 930, a second vision component 940, a non-conforming product unloading belt 950, and a conforming product placement component 960. The fifth support component 910 is mounted on a base. The fifth linear motor module 920 is connected to the fifth support component 910 and is located at the valve seat / core nut assembly unloading station 270, conveying the valve seat / core nut assembly 100 to the station. A valve seat / core nut assembly pick-and-place fixture 970 is mounted on the fifth linear motor module 920, clamping the valve seat / core nut assembly 100 and moving it along the module to the position of the vision inspection and placement component 930. The vision inspection and placement component 930 can be connected to the fifth linear motor module 920 to place the valve seat / core nut assembly 100. The second vision component 940 is connected to the vision inspection placement component 930. The second vision component 940 inspects the assembly status of the valve seat / valve core nut assembly 100 placed on the vision inspection placement component 930. This inspection can be performed using image comparison to determine whether the assembly status of the valve seat / valve core nut assembly 100 is qualified or unqualified. The unqualified product unloading conveyor 950 is connected to the vision inspection placement component 930. When the assembly status of the valve seat / valve core nut assembly 100 placed on the vision inspection placement component 930 is determined to be unqualified, the assembly is unloaded and sent to the unqualified product area for rework or disposal. The qualified product placement component 960 is connected to the vision inspection placement component 930. When the assembly status of the valve seat / valve core nut assembly 100 placed on the vision inspection placement component 930 is determined to be unqualified, the assembly is unloaded and sent to the qualified product area.

[0051] Specifically, the valve seat, valve core, and nut assembly material handling fixture 970 may include a valve seat, valve core, and nut assembly fixture mounting plate 971, a valve seat, valve core, and nut assembly material handling cylinder 972, a valve seat, valve core, and nut assembly cylinder connecting plate 973, a valve seat, valve core, and nut assembly gripper cylinder 974, and a valve seat, valve core, and nut assembly gripper 975.

[0052] The unloading process for the valve seat / valve core nut assembly 100 can be as follows: The valve seat / valve core nut assembly unloading component 900 is mounted on the base via the fifth support component 910. The fifth linear motor module 920 is mounted on the fifth support component 910, and the valve seat / valve core nut assembly pick-and-place fixture 970 is mounted on the fifth linear motor module 920. The valve seat / valve core nut assembly pick-and-place fixture 970, through the downward movement of the valve seat / valve core nut assembly pick-up cylinder 972, drives the valve seat / valve core nut assembly gripper cylinder 974 to move downward. After the valve seat / valve core nut assembly 100 is gripped by the valve seat / valve core nut assembly gripper cylinder 974, it is transported to the position of the vision inspection and placement component 930 via the fifth linear motor module 920. Simultaneously, the second vision component 940 is activated to perform visual inspection of the valve seat / valve core nut assembly 100. After completion, the valve seat / valve core nut assembly pick-and-place fixture 970, through the valve seat / valve core nut assembly pick-and-place fixture 970, moves downward via the valve seat / valve core nut assembly pick-and-place fixture 970. The lowering of the mother assembly component picking cylinder 972 causes the valve seat / valve core / nut assembly component gripper cylinder 974 to move down. After the valve seat / valve core / nut assembly component 100 is picked up by the gripper cylinder 974, it is conveyed by the fifth linear motor module 920. For unqualified products, it is placed on the unqualified product unloading belt 950, and for qualified products, it is placed on the qualified product placement position component 960 for the next process to pick up. After completion, the indexing plate 200 rotates counterclockwise to the empty station 280, and the automatic assembly of the valve seat / valve core / nut assembly component 100 is completed.

[0053] This embodiment of the invention utilizes an indexing plate 200 with at least seven workstations. These seven workstations are, in sequence: a valve seat loading workstation 210, a valve core nut loading and assembly workstation 220, a nut connecting piece loading and assembly workstation 230, a nut connecting piece pressing workstation 240, a nut connecting piece welding workstation 250, a stop ring loading and assembly workstation 260, and a valve seat / valve core nut assembly unloading workstation 270. A valve seat loading assembly 300, connected to the valve seat loading workstation 210, is used to deliver the valve seat 110 to the valve seat loading workstation 210 for assembly. A valve core nut loading and assembly assembly 400, connected to the valve core nut loading and assembly workstation 220, is used to deliver the valve core nut 120 to the valve core nut loading and assembly workstation 220 for assembly. A nut connecting piece loading and assembly assembly 500, connected to the nut connecting piece loading and assembly workstation 230, is used to deliver the nut connecting piece 130 to the nut connecting piece loading workstation. Assembly station 230 performs assembly; nut connecting piece pressing assembly 600, connected to nut connecting piece pressing station 240, is used to press the nut connecting piece 130 on nut connecting piece pressing station 240; nut connecting piece welding assembly 700, connected to nut connecting piece welding station 250, is used to weld the nut connecting piece 130 on nut connecting piece welding station 250; stop ring feeding assembly assembly 800, connected to stop ring feeding assembly station 260, is used to send the stop ring 140 to stop ring feeding assembly station 260 for assembly; valve seat valve core nut assembly unloading assembly 900, connected to valve seat valve core nut assembly unloading station 270, is used to unload the valve seat valve core nut assembly 100; the indexing plate 200 is used to rotate based on a preset production cycle to complete the processes corresponding to the seven stations. As the indexing plate 200 rotates to each station, the valve seat loading assembly 300, valve core nut 120, nut connecting piece loading assembly 500, nut connecting piece pressing assembly 600, nut connecting piece welding assembly 700, stop ring loading assembly 800, and valve seat / valve core nut assembly unloading assembly 900 perform their respective processes, thereby automating the assembly process and improving assembly efficiency.

[0054] This invention also discloses a valve seat, valve core, and nut assembly equipment, including a controller and the valve seat, valve core, and nut assembly fixture as described above. The controller is used to control the valve seat, valve core, and nut assembly fixture to perform the valve seat, valve core, and nut assembly process.

[0055] Reference Figure 13 The diagram illustrates a step-by-step flowchart of an embodiment of a valve seat / valve core / nut assembly method according to the present invention. Applied to the valve seat / valve core / nut assembly fixture described above, the valve seat / valve core / nut assembly method specifically includes the following steps: Step 1301: Control the indexing plate to rotate according to the preset production cycle; The indexing plate can be rotated according to the production cycle set by the engineers. For example, if the preset production cycle is 3 seconds, the indexing plate can rotate once every 3 seconds.

[0056] Step 1302: Each time the indexing plate rotates once, the valve seat feeding assembly, valve core nut feeding assembly, nut connecting piece feeding assembly, nut connecting piece pressing assembly, nut connecting piece welding assembly, stop ring feeding assembly, and valve seat / valve core nut assembly unloading assembly are operated.

[0057] Each time the indexing plate rotates, the following components are activated: valve seat feeding assembly, valve core nut feeding and assembly assembly, nut connecting piece feeding and assembly assembly, nut connecting piece pressing assembly, nut connecting piece welding assembly, stop ring feeding and assembly assembly, and valve seat / valve core nut assembly unloading assembly. Specifically, the valve seat feeding assembly performs valve seat feeding and assembly; the valve core nut feeding and assembly assembly performs valve core nut feeding and assembly; the nut connecting piece feeding and assembly assembly performs nut connecting piece feeding and assembly; the nut connecting piece pressing assembly performs nut connecting piece pressing; the nut connecting piece welding assembly performs nut connecting piece welding; the stop ring feeding and assembly assembly performs stop ring feeding and assembly; and the valve seat / valve core nut assembly unloading assembly outputs the valve seat / valve core nut assembly.

[0058] This invention achieves automatic positioning, clamping, assembly, welding, and inspection of valve seats, valve core nuts, and other components by controlling the coordinated operation of the indexing plate, valve seat feeding assembly, valve core nut, nut connecting piece feeding assembly assembly, nut connecting piece pressing assembly, nut connecting piece welding assembly, stop ring feeding assembly assembly, and valve seat / valve core nut unloading assembly in the valve seat / valve core nut assembly tooling. This solves the problems of low assembly efficiency, insufficient precision, strong reliance on manual labor, and poor compatibility in the prior art, thereby improving the assembly quality and production efficiency of electronic expansion valves.

[0059] It should be noted that, for the sake of simplicity, the method embodiments are all described as a series of actions. However, those skilled in the art should understand that the embodiments of the present invention are not limited to the described order of actions, because according to the embodiments of the present invention, some steps can be performed in other orders or simultaneously. Furthermore, those skilled in the art should also understand that the embodiments described in the specification are preferred embodiments, and the actions involved are not necessarily essential to the embodiments of the present invention.

[0060] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0061] The terms "first," "second," etc., are used for descriptive purposes only and should not be construed as implying or suggesting relative importance or implicitly indicating the number or order of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified. Furthermore, the terms "comprising," "including," and "having," and any variations thereof, are intended to cover non-exclusive inclusion. As used in this application, the term "and / or" includes any and all combinations of one or more of the associated listed items, and the phrase "at least one of A and B" means only A, only B, or both A and B. It should be understood that in this specification, the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "height," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship or dimensions based on the orientation or positional relationship or dimensions shown in the accompanying drawings. These terms are used only for ease of description and are not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the scope of protection of this disclosure.

[0062] Although preferred embodiments of the present invention have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of the embodiments of the present invention.

[0063] Finally, it should be noted that in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or terminal device that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or terminal device. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or terminal device that includes said element.

[0064] The foregoing has provided a detailed description of the valve seat, valve core, and nut assembly tooling, the valve seat, valve core, and nut assembly method, and the valve seat, valve core, and nut assembly equipment provided by the present invention. Specific examples have been used to illustrate the principles and implementation methods of the present invention. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core ideas of the present invention. Furthermore, those skilled in the art will recognize that, based on the ideas of the present invention, there will be changes in the specific implementation methods and application scope. Therefore, the content of this specification should not be construed as a limitation of the present invention.

Claims

1. A tooling for assembling valve seat, valve core, and nut components, characterized in that, The valve seat and valve core nut assembly includes a valve seat, a valve core nut, a nut connecting piece, and a stop ring. The assembly fixture for the valve seat and valve core nut assembly includes: The indexing plate is equipped with at least seven workstations, which are, in order, valve seat loading workstation, valve core nut loading and assembly workstation, nut connecting piece loading and assembly workstation, nut connecting piece pressing workstation, nut connecting piece welding workstation, stop ring loading and assembly workstation, and valve seat and valve core nut assembly unloading workstation. A valve seat feeding assembly is connected to the valve seat feeding station and is used to send the valve seat to the valve seat feeding station for assembly; A valve core nut feeding and assembly assembly assembly is connected to the valve core nut feeding and assembly station and is used to send the valve core nut to the valve core nut feeding and assembly station for assembly. A nut connecting piece feeding and assembly assembly assembly is connected to the nut connecting piece feeding and assembly station and is used to send the nut connecting piece to the nut connecting piece feeding and assembly station for assembly; A nut connecting piece pressing assembly is connected to the nut connecting piece pressing station and is used to press the nut connecting piece at the nut connecting piece pressing station. A nut connecting piece welding assembly is connected to the nut connecting piece welding station and is used to weld the nut connecting piece at the nut connecting piece welding station; A stop ring feeding and assembly assembly assembly is connected to the stop ring feeding and assembly station and is used to send the stop ring to the stop ring feeding and assembly station for assembly. A valve seat, valve core, and nut assembly unloading assembly is connected to the valve seat, valve core, and nut assembly unloading station and is used to unload the valve seat, valve core, and nut assembly. The indexing plate is used to rotate based on a preset production cycle to complete the processes corresponding to the seven workstations.

2. The assembly tooling for the valve seat and valve core nut assembly according to claim 1, characterized in that, The valve seat feeding assembly includes: First pillar component; A first linear motor module is connected to the first support assembly and is used to convey the valve seat; Take the valve seat clamp and install it on the first linear motor module to clamp the valve seat and move on the first linear motor module; The valve seat feeding and straightening mechanism is connected to the valve seat taking fixture and is used to orient the valve seat held by the valve seat taking fixture. A valve seat clamp is connected to the valve seat loading station and is used to clamp the valve seat after it has been oriented to the valve seat loading station.

3. The assembly tooling for the valve seat and valve core nut assembly according to claim 1, characterized in that, The valve core nut feeding assembly includes: Second pillar component; The second linear motor module is connected to the second support assembly and is used to convey the valve core nut; A valve core nut pick-and-place fixture is mounted on the second linear motor module to hold the valve core nut and move on the second linear motor module. The valve core nut rotating assembly is located between the valve core nut pick-and-place fixture and the valve core nut loading and assembly station, and is used to orient the valve core nut held by the valve core nut pick-and-place fixture.

4. The assembly tooling for the valve seat and valve core nut assembly according to claim 1, characterized in that, The nut connecting piece feeding and assembly assembly includes: Third pillar component; The third linear motor module is connected to the third support assembly and is used to convey the nut connecting piece; A vibratory feeder for nut connecting pieces is connected to the third linear motor module and is used for receiving the nut connecting pieces. A nut-and-connector clamp is installed on the third linear motor module to hold the nut-and-connector and move it on the third linear motor module. The nut connecting piece positioning assembly is connected to the nut connecting piece pick-and-place fixture and is used to guide and position the nut connecting piece during installation.

5. The assembly tooling for the valve seat and valve core nut assembly according to claim 4, characterized in that, The nut connecting piece feeding assembly assembly also includes: The first vision component is located at the valve core nut loading and assembly station and is used to detect the part status of the nut connecting piece. The non-conforming product removal assembly is connected to the valve core nut loading and assembly station and is used to remove nut connecting pieces that are in a non-conforming state from the assembly line.

6. The assembly tooling for the valve seat and valve core nut assembly according to claim 1, characterized in that, The nut connecting piece pressing assembly includes: The downward support assembly is located at the downward pressing position of the nut connecting piece; A pressure rod, mounted on the pressure support assembly, is used to press the nut connecting piece; A buffer connector is located between the pressure rod and the nut connecting piece; A downward-pressing electric cylinder is installed on the downward-pressing support assembly and connected to the downward-pressing rod, used to drive the downward-pressing rod to move.

7. The assembly tooling for the valve seat and valve core nut assembly according to claim 1, characterized in that, The nut connecting piece welding assembly includes: The nut connecting piece support assembly is located at the welding station of the nut connecting piece; The welding torch assembly is mounted on the nut connecting plate support assembly.

8. The assembly tooling for the valve seat and valve core nut assembly according to claim 1, characterized in that, The stop ring feeding assembly includes: Fourth pillar component; The fourth linear motor module is connected to the fourth support assembly and is used to convey the stop ring; The stop ring vibratory feeder is connected to the fourth linear motor module and is used for feeding the stop ring; The stop ring clamp is installed on the fourth linear motor module to hold the stop ring and move it on the fourth linear motor module.

9. The assembly tooling for the valve seat and valve core nut assembly according to claim 1, characterized in that, The valve seat, valve core, and nut assembly cutting component includes: Fifth pillar component; The fifth linear motor module, connected to the fifth support assembly, is located at the unloading station of the valve seat valve core nut assembly and is used to transport the valve seat valve core nut assembly. A valve seat valve core nut assembly pick-and-place clamp is installed on the fifth linear motor module and is used to clamp the valve seat valve core nut assembly to move on the fifth linear motor module; A vision inspection placement component is connected to the fifth linear motor module and is used to place the valve seat, valve core, and nut assembly. The second vision component is connected to the vision detection placement component and is used to detect the assembly status of the valve seat valve core nut assembly. The non-conforming product unloading belt is connected to the visual inspection placement component and is used to unload the valve seat, valve core, and nut assembly that is in a non-conforming assembly state. The qualified product placement component is connected to the vision inspection placement component and is used to unload the valve seat, valve core, and nut assembly that is in a qualified assembly state.

10. The assembly tooling for the valve seat and valve core nut assembly according to any one of claims 1-9, characterized in that, The indexing plate has eight workstations, and the indexing plate also includes an empty workstation. The valve seat loading station, the valve core nut loading and assembly station, the nut connecting piece loading and assembly station, the nut connecting piece pressing station, the nut connecting piece welding station, the stop ring loading and assembly station, the valve seat and valve core nut assembly unloading station, and the empty station are evenly distributed counterclockwise along the indexing plate.

11. A method for assembling a valve seat, valve core, and nut assembly, characterized in that, The method, applied to the assembly tooling of the valve seat and valve core nut assembly as described in any one of claims 1-10, comprises: The indexing plate is rotated according to the preset production cycle. Each time the indexing plate rotates, the control valve seat feeding assembly, valve core nut feeding assembly, nut connecting piece feeding assembly, nut connecting piece pressing assembly, nut connecting piece welding assembly, stop ring feeding assembly, and valve seat / valve core nut assembly unloading assembly are activated.

12. A valve seat, valve core, and nut assembly equipment, characterized in that, The device includes a controller and a valve seat, valve core, and nut assembly tooling as described in any one of claims 1-10, wherein the controller is used to control the valve seat, valve core, and nut assembly tooling to perform the valve seat, valve core, and nut assembly process.

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