Pressure reducing valve diaphragm assembling machine

Abstract

The utility model discloses a pressure reducing valve diaphragm assembling machine which comprises a machine frame, a rotating disc is arranged on the machine frame, a plurality of clamps are evenly arranged on the periphery of the rotating disc, and a mandrel feeding assembly, a diaphragm feeding assembly, a plastic pressing piece feeding assembly, a spring feeding assembly, an assembling buckle feeding assembly and a discharging assembly are sequentially arranged on the machine frame around the periphery of the rotating disc. The membrane feeding assembly comprises a base, a feeding disc and a rotation driving motor used for driving the feeding disc to rotate are rotationally connected to the base, a plurality of material blocking columns and guide needles are arranged on the feeding disc, the multiple material blocking columns at least form a circle in a surrounding mode, and a bearing table used for bearing membranes is slidably connected to the material blocking columns. A membrane taking mechanical arm is arranged above the bearing table, a circumferential positioning mechanism is arranged on one side of the feeding disc, and a lifting mechanism used for driving the bearing table rotating to the position under the membrane taking mechanical arm to ascend is arranged on one side of the bearing table. The utility model has the advantage of high degree of automation.

Description

Technical Field

[0001] This utility model relates to the technical field of pressure reducing valve diaphragm production equipment, and in particular to a pressure reducing valve diaphragm assembly machine. Background Technology

[0002] Pressure reducing valves are crucial components in fluid control systems. Their core diaphragm assembly comprises multiple precision parts, including a spindle, diaphragm, plastic pressure plate, spring, and mounting clips. Assembly quality directly impacts product performance. Currently, the assembly of such multi-part small components faces the following main problems:

[0003] Manual assembly: low efficiency, unstable quality, high labor intensity and high labor costs, and prone to fatigue and errors.

[0004] Semi-automatic assembly: Although some processes are automated, key parts picking, precise positioning, posture adjustment and precision fitting still rely on manual labor. The overall level of automation and production efficiency are limited, especially in handling flexible parts such as diaphragms or assembly buckles with specific installation orientations.

[0005] Shortcomings of existing automation attempts: Feeding and positioning accuracy issues: Due to the flexible and easily deformable nature of diaphragms, traditional gripping and positioning methods are difficult; assembly buckles with directional requirements are difficult to adjust using ordinary feeding methods. Complex structure and high cost: Equipment for automating multi-station, multi-part assembly is often structurally complex, difficult to debug and maintain, and requires a large initial investment. Efficiency bottlenecks: Coordination between units and station transitions may limit overall efficiency. Poor flexibility: Specialized machines are difficult to adjust when product specifications change.

[0006] Therefore, the existing pressure reducing valve diaphragm assembly has problems such as low automation, low efficiency, high reliance on manual labor, and difficulty in feeding and assembling specific parts. There is an urgent need for a high-efficiency and precise automated special assembly equipment to improve efficiency, ensure quality, and reduce costs.

[0007] Therefore, it is necessary to further improve and perfect the existing technology to overcome these shortcomings, and this utility model is made based on this situation. Utility Model Content

[0008] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a pressure reducing valve diaphragm assembly machine with a high degree of automation and high efficiency.

[0009] This utility model is achieved through the following technical solution:

[0010] To solve the above-mentioned technical problems, this utility model provides a pressure reducing valve diaphragm assembly machine, including a frame, a turntable and a turntable driving device for driving the turntable to rotate on the frame, a plurality of clamps evenly arranged around the turntable, and a mandrel feeding assembly, a diaphragm feeding assembly, a plastic pressing sheet feeding assembly, a spring feeding assembly, a mounting buckle feeding assembly and a discharging assembly arranged sequentially around the turntable on the frame;

[0011] The diaphragm feeding assembly includes a base, on which a feeding tray and a rotary drive motor for driving the feeding tray to rotate are rotatably connected. The feeding tray is provided with a plurality of baffles and guide pins. The plurality of baffles are arranged in at least one circle and a support platform for carrying the diaphragm is slidably connected thereon. The support platform has a through hole in the center for the corresponding guide pin to pass through. A diaphragm picking robot is provided above the support platform. A circumferential positioning mechanism is provided on one side of the feeding tray for circumferential positioning of the feeding tray when it rotates to a predetermined angle. A lifting mechanism is provided on one side of the support platform for driving the support platform that rotates to the position directly below the diaphragm picking robot to rise.

[0012] To further solve the technical problem to be solved by this utility model, the present utility model provides a pressure reducing valve diaphragm assembly machine, wherein the circumferential positioning mechanism includes positioning ports evenly arranged on the side of the feeding tray, a positioning top head that can extend into the positioning port to restrict the rotation of the feeding tray, and a positioning driver for driving the positioning top head to move along the radial direction of the feeding tray, wherein the number of positioning ports corresponds to the number of bearing platforms.

[0013] To further solve the technical problem to be solved by this utility model, this utility model provides a pressure reducing valve diaphragm assembly machine, wherein the lifting mechanism includes a movable block and a lifting driver for driving the movable block to rise and fall. A support head that can extend to the underside of the support platform located directly below the diaphragm picking robot is slidably connected to the movable block. The support head is connected to a progressive driver for driving it to approach and move away from the support platform.

[0014] To further address the technical problems to be solved by this utility model, the present utility model provides a pressure reducing valve diaphragm assembly machine, wherein the diaphragm picking robot includes a diaphragm picking suction cup and a diaphragm moving module for driving the diaphragm picking suction cup to rise and fall and move between the carrier platform and the clamp along the radial direction of the turntable.

[0015] To further address the technical problems addressed by this utility model, a pressure reducing valve diaphragm assembly machine is provided. The assembly buckle feeding assembly includes an assembly buckle vibratory plate and an assembly buckle robot. The assembly buckle robot includes assembly buckle grippers and an opening / closing driver for driving the grippers to open and close. The opening / closing driver is rotatably connected to a movable platform. The movable platform is connected to an assembly buckle moving module for driving its lifting and lowering and moving radially along the turntable. A circumferential adjustment mechanism for driving the opening / closing driver to rotate is provided between the movable platform and the opening / closing driver, so that the assembly buckle is inserted into the mandrel in a suitable orientation.

[0016] To further solve the technical problem to be solved by this utility model, the present utility model provides a pressure reducing valve diaphragm assembly machine, wherein the circumferential adjustment mechanism includes a linear driver, the middle part of which is rotatably connected to a moving platform, and the output end of which is rotatably connected to an opening and closing driver, and the extension and retraction motion of the linear driver can be converted into the rotational motion of the opening and closing driver.

[0017] Compared with the prior art, the present invention has the following advantages:

[0018] The main innovation of this invention lies in its highly automated pressure-reducing valve diaphragm assembly design, particularly the ingenious construction of its diaphragm feeding assembly and assembly buckle feeding assembly. The diaphragm feeding assembly, through the precise circumferential positioning mechanism of the feeding tray, the independent lifting mechanism of the support platform, and the coordinated action of the picking robot, achieves stable and orderly supply and precise positioning and picking of the diaphragm. The assembly buckle feeding assembly, through the circumferential adjustment mechanism on its robot arm and the use of a linear actuator to convert the rotation of the gripper, ensures that the assembly buckle is adjusted to the appropriate orientation before installation, solving the problem of installation in a specific direction. The main advantages of these innovative designs are: significantly improved automation and production efficiency in pressure-reducing valve diaphragm assembly; reduced manual intervention through precise material conveying and positioning, ensuring assembly accuracy and product quality consistency, while simultaneously reducing labor intensity and production costs. Attached Figure Description

[0019] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings, wherein:

[0020] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0021] Figure 2 This is a schematic diagram of the fixture and the pressure reducing valve diaphragm.

[0022] Figure 3 This is a three-dimensional structural diagram of the mandrel feeding assembly;

[0023] Figure 4This is a three-dimensional structural diagram of the diaphragm feeding assembly;

[0024] Figure 5 This is a three-dimensional structural diagram of the plastic sheeting and feeding assembly;

[0025] Figure 6 This is a three-dimensional structural diagram of the spring feeding assembly;

[0026] Figure 7 This is a cross-sectional schematic diagram of the spring feeding assembly;

[0027] Figure 8 This is a three-dimensional structural diagram of the assembly fastener feeding component. Detailed Implementation

[0028] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0029] Please see Figures 1 to 8 This utility model provides a pressure reducing valve diaphragm assembly machine.

[0030] like Figure 1 As shown, the pressure reducing valve diaphragm assembly machine of this embodiment includes a frame 1 on which a turntable 2 capable of achieving a predetermined rotational movement is mounted. The rotation of the turntable 2 is driven by a turntable drive device (not shown) (e.g., a servo motor with a reducer) to achieve precise switching between workstations. A plurality of clamps 3 for positioning and holding the workpieces to be assembled are evenly spaced along the circumferential edge of the turntable 2.

[0031] Around the periphery of the turntable 2, multiple automated functional components are sequentially arranged on the frame 1 according to the assembly process of the pressure reducing valve diaphragm. These components specifically include:

[0032] Mandrel feeding assembly 4: used to feed the mandrel 100 to be assembled (see...) Figure 2 It is automatically supplied to the fixture 3 at the corresponding station on the turntable 2.

[0033] Membrane feeding assembly 5: used to feed membrane 200 (see Figure 2 It is automatically supplied and placed into the fixture 3 that already contains the mandrel 100.

[0034] Plastic tablet feeding assembly 6: used to feed plastic tablets 300 (see...) Figure 2 It is automatically supplied and placed into the fixture 3, which is already equipped with the mandrel 100 and the diaphragm 200.

[0035] Spring feeding assembly 7: used to feed spring 400 (see Figure 2 It is automatically supplied and mounted on the mandrel 100 or placed in a designated position.

[0036] Assembly buckle feeding assembly 8: used to feed assembly buckles 500 (see...) Figure 2 It automatically supplies and completes the final fastening assembly with components such as the mandrel 100.

[0037] Unloading assembly 9: Used to remove the finished pressure reducing valve diaphragm that has completed all assembly processes from the fixture 3 and transfer it to the next process or collection device.

[0038] like Figure 2 As shown, the pressure reducing valve diaphragm workpiece to be assembled in this embodiment mainly includes a spindle 100, a diaphragm 200, a plastic pressure plate 300, a spring 400, and a mounting buckle 500. The clamps 3 on the turntable 2 are designed to stably fix these components at each station and to gradually receive new components during the assembly process.

[0039] During assembly, the turntable 2 rotates intermittently under the action of its drive device. Each time the turntable 2 stops after rotating one station angle, the fixtures 3 at each station align with the corresponding loading or unloading components. Each loading component automatically adds the corresponding parts (mandrel 100, diaphragm 200, plastic pressure plate 300, spring 400, mounting buckle 500) sequentially to the workpiece within the fixture 3. After all processes, the assembled pressure-reducing valve diaphragm assembly is automatically removed at the unloading component 9. This assembly line operation, combined with the precise operation of each automated component, gives this assembly machine significant advantages such as high automation, high assembly efficiency, and high production speed.

[0040] The following section will focus on a detailed description of the structure and working principle of the diaphragm feeding assembly 5 and the mounting buckle feeding assembly 8.

[0041] Detailed description of diaphragm feeding assembly 5

[0042] Reference Figure 4 The diaphragm feeding assembly 5 is used to automatically feed the diaphragm 200 into the clamp 3 on the turntable 2 for subsequent assembly. It mainly includes a base 51, a feeding tray 52, a rotary drive motor 53, a stop post 54, a guide pin 55, a support platform 56, a diaphragm picking robot 57, a circumferential positioning mechanism 58, and a lifting mechanism 59.

[0043] The feeding tray 52 is rotatably connected to the base 51, and its upper surface is used to support the film 200 to be fed. The rotary drive motor 53, such as a stepper motor or servo motor, is connected to the feeding tray 52 through a transmission mechanism (such as gears or belts) and is used to drive the feeding tray 52 to rotate intermittently or continuously so as to feed the stored film 200 one by one to the picking position.

[0044] On the upper surface of the feed tray 52, a plurality of baffle posts 54 arranged in a circular array are provided. These baffle posts 54 form at least one ring, defining the stacking area of ​​the diaphragms 200. Between or around the baffle posts 54, a plurality of support platforms 56 for directly supporting the diaphragms 200 are slidably connected. Each support platform 56 is used to support one or more stacked diaphragms 200. To ensure the initial positioning of the diaphragms 200 on the support platform 56, the feed tray 52 is also provided with a plurality of guide pins 55, and each support platform 56 has a through hole in its center for the corresponding guide pin 55 to pass through. The guide pins 55 passing through the central hole of the diaphragm 200 help the diaphragm maintain the correct posture on the support platform 56.

[0045] Above the support platform 56, a diaphragm picking robot 57 is provided. The diaphragm picking robot 57 is used to pick up the diaphragm 200 from the raised support platform 56 and transfer it to the clamp 3 of the turntable 2.

[0046] Different support platforms 56 can rotate to the predetermined feeding position as the feeding tray 52 rotates, so that the film picking robot 57 can grasp it.

[0047] To ensure that a support platform 56 is precisely aligned with the underside of the film-picking robot 57 or a predetermined picking position each time the feeding tray 52 stops rotating, a circumferential positioning mechanism 58 is provided on one side (e.g., its outer peripheral edge) of the feeding tray 52. ​​More specifically, as Figure 4 As shown, the circumferential positioning mechanism 58 may include a plurality of positioning openings 521 evenly arranged on the side of the feeding tray 52. ​​The number of these positioning openings 521 corresponds to or is a multiple of the number of support platforms 56 on the feeding tray 52. ​​The circumferential positioning mechanism 58 also includes a positioning head 581 that can extend into the positioning opening 521 to physically restrict the rotation of the feeding tray 52. ​​The positioning head 581 is driven by a positioning driver 582 and reciprocates along the radial direction of the feeding tray 52. ​​The positioning driver 582 may be a linear drive device such as a cylinder, an electromagnetic push rod, or a ball screw driven by a motor. When the feeding tray 52 rotates close to a predetermined position, the controller issues a command, and the positioning driver 582 drives the positioning head 581 to extend and insert into the corresponding positioning opening 521, thereby achieving precise circumferential locking of the feeding tray 52.

[0048] After a support platform 56 is delivered directly beneath the diaphragm-picking robot 57 by the rotation of the feed tray 52 and precisely positioned by the circumferential positioning mechanism 58, the support platform 56 needs to be lifted to a predetermined height to facilitate the diaphragm-picking robot 57 in picking up the diaphragm 200. This is accomplished by a lifting mechanism 59 located on one side of the support platform 56. Figure 4As shown, the lifting mechanism 59 may include a movable block 591. This movable block 591 is driven to move up and down by a lifting actuator 592 (e.g., a cylinder, hydraulic cylinder, or a motor-driven ball screw, rack and pinion mechanism, etc.). A support head 593 is slidably connected to the movable block 591. This support head 593 is horizontally extendable to precisely move to the bottom of the support platform 56 located directly below the diaphragm handling robot 57. The horizontal extension and retraction of the support head 593 is driven by a progressive actuator 594, which may be a small cylinder or an electromagnetic push rod, for driving the support head 593 towards or retracting from the bottom of the support platform 56. During operation, when the support platform 56 reaches the designated position, the advance driver 594 drives the support head 593 to extend below the support platform 56, and then the lifting driver 592 drives the movable block 591 and the support head 593 to rise together, thereby lifting the support platform 56 and the diaphragm 200 on it to the material picking height.

[0049] The specific structure of the membrane material handling robot 57 is as follows: Figure 4 As shown. It preferably includes one or more diaphragm pick-up suction cups 571, which pick up the diaphragm 200 using negative pressure adsorption. This method minimizes damage to the diaphragm surface and provides stable pick-up. The diaphragm pick-up suction cup 571 is connected to a diaphragm moving module 572. The diaphragm moving module 572 is a moving device with at least two degrees of freedom, capable of driving the diaphragm pick-up suction cup 571 to perform lifting motion (Z-axis, for picking up the diaphragm from the support platform 56 and placing the diaphragm into the clamp 3) and horizontal movement along the radial direction of the turntable 2 (X-axis or Y-axis, for transferring the diaphragm between the support platform 56 and the clamp 3 on the turntable 2). The diaphragm moving module 572 can be composed of, for example, two sets of ball screw pairs driven by servo motors, or a linear module driven by a cylinder, to achieve fast and precise positioning and movement.

[0050] Detailed description of assembly buckle feeding component 8

[0051] Reference Figure 8 The assembly buckle feeding assembly 8 is used to automatically supply and install the assembly buckles 500 onto components such as the mandrel 100 that have been partially assembled in the fixture 3, completing the final locking or connection. It mainly includes an assembly buckle vibratory feeder 81 and an assembly buckle robot 82.

[0052] The assembly buckle vibratory feeder 81 is a common automated feeding device used to sort and arrange bulk assembly buckles 500 and output them in a specific direction to a predetermined picking position for the assembly buckle robot arm 82 to grasp.

[0053] The assembly hook robot 82 is responsible for picking up the assembly hook 500 from the exit of the assembly hook vibratory feeder 81 and precisely moving and installing it onto the mandrel 100 in the fixture 3 on the turntable 2. For example... Figure 8 As shown, the assembly buckle robot 82 includes an assembly buckle gripper 821 for holding the assembly buckle 500. The opening and closing action of the assembly buckle gripper 821 is controlled by an opening and closing driver 822 (e.g., a small cylinder, a motor-driven miniature gripper, etc.).

[0054] The opening / closing actuator 822 (along with its fixed mounting clip gripper 821) is rotatably connected to a moving stage 823. The moving stage 823 is then connected to a mounting clip moving module 824. Similar to the diaphragm moving module 572, the mounting clip moving module 824 is also a moving device with at least two degrees of freedom, capable of driving the moving stage 823 (and its entire gripper mechanism) to achieve lifting motion (Z-axis, for picking up the mounting clip and pressing it into the mandrel) and horizontal movement along the radial direction of the turntable 2 (X-axis or Y-axis, for transferring the mounting clip between the vibratory feeder outlet and the clamp 3). This module can also employ a structure such as a servo motor coupled with a ball screw pair or a linear slide driven by a cylinder.

[0055] In some applications, the installation of the mounting buckle 500 may have specific requirements regarding its circumferential orientation when inserted into the mandrel 100. To meet this requirement, a circumferential adjustment mechanism is preferably provided between the moving stage 823 and the opening / closing driver 822. This circumferential adjustment mechanism is used to drive the opening / closing driver 822 (and the mounting buckle 500 it holds) to rotate at a certain angle about its rotational connection axis with the moving stage 823 after the mounting buckle 500 is clamped and before installation, so that the mounting buckle 500 can be inserted into or engage with the mandrel 100 in a suitable, preset orientation.

[0056] Furthermore, the circumferential adjustment mechanism includes a linear actuator 825, such as a small cylinder or an electric push rod. The middle part of the body of the linear actuator 825 (e.g., the cylinder body) is connected to the moving stage 823 via a revolute joint (e.g., a pin), allowing the linear actuator 825 to swing about this connection point. The output end of the linear actuator 825 (e.g., the piston rod end of the cylinder) is rotatably connected to an eccentric position of the opening / closing actuator 822 via another revolute joint or via a linkage mechanism. When the linear actuator 825 extends or retracts, its linear motion is converted into rotational motion of the opening / closing actuator 822 (and its fixed mounting clip 821) about its rotational connection point with the moving stage 823 through a lever principle or a crank-slider similar mechanism. By precisely controlling the extension and retraction stroke of the linear actuator 825, precise adjustment of the mounting clip's 500° circumferential angle can be achieved.

[0057] Work process summary

[0058] The pressure reducing valve diaphragm assembly machine of this embodiment achieves automated feeding and assembly of multiple parts (mandrel 100, diaphragm 200, plastic pressure plate 300, spring 400, and assembly buckle 500) in the pressure reducing valve diaphragm assembly through the coordinated operation of the aforementioned components. In particular, the diaphragm feeding assembly 5 ensures stable and orderly supply and precise placement of the diaphragm through the precise coordination of the feeding tray, circumferential positioning mechanism, lifting mechanism, and picking robot; the assembly buckle feeding assembly 8 achieves efficient and accurate orientation installation of the assembly buckle through vibratory feeder feeding, robot gripping, multi-axis movement, and an optional circumferential adjustment mechanism. The machine has a high degree of automation, significantly improving assembly efficiency and product quality while reducing labor costs and labor intensity.

[0059] The following is a brief description of the structure of the mandrel feeding assembly 4, the plastic sheet feeding assembly 6, the spring feeding assembly 7, and the unloading assembly 9.

[0060] like Figure 3 As shown, the mandrel feeding assembly 4 includes a first vibratory plate 41, a first robotic arm 42 (such as a gripper cylinder), and a first moving module 43 (a two-axis moving module, which may be two sets of cylinders or two sets of ball screw pairs) for driving the first robotic arm 42 to lift and move along the radial direction of the turntable.

[0061] like Figure 5 As shown, the plastic sheet feeding assembly 6 includes a second vibratory plate 61, a second robotic arm 62 (such as a suction cup), and a third moving module 63 (a two-axis moving module, which may employ two sets of cylinders or two sets of ball screw pairs) for driving the robotic arm to lift and move along the radial direction of the turntable.

[0062] like Figure 6 , 7 As shown, the spring feeding assembly 7 includes a third vibratory plate 71 and a bracket 72. The bracket 72 is provided with a receiving tube 75 and a discharge hole 76. A slider 73 is also slidably connected to the bracket 72. The slider 73 is connected to a sliding actuator 74 (such as a cylinder) that drives it to slide between the receiving tube 75 and the discharge hole 76. The slider 73 is provided with a temporary storage hole for storing the spring, which can be aligned sequentially with the receiving tube 75 and the discharge hole 76. A push rod 77 is provided above the discharge hole 76. The push rod can move up and down to push the spring out of the temporary storage hole or the discharge hole 76. The push rod 77 is connected to an ejection actuator 78 (such as a cylinder) for driving its lifting and lowering.

[0063] like Figure 1 As shown, the unloading assembly 9 includes an unloading slide, an unloading gripper 91 for transferring the workpiece on the fixture to the unloading slide, an unloading opening and closing driver 92 (such as a cylinder) for driving the unloading gripper 91 to open and close, and a swing motor 93 for driving the unloading gripper 91 to swing horizontally.

[0064] The above description is merely a preferred embodiment of this utility model and is not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model. For example, the driving method (pneumatic, electric), sensor arrangement, and specific implementation of the control system of each component can be adjusted according to actual needs. Each feeding component can also adopt different specific structures according to the shape and characteristics of the parts to be fed.

Claims

1. A pressure reducing valve diaphragm assembly machine, characterized in that: The machine includes a frame (1), on which a turntable (2) is provided and a turntable drive device for driving its rotation. Several clamps (3) are evenly arranged around the turntable (2). The machine is arranged in sequence around the turntable (2) on the frame (1) as a spindle feeding assembly (4), a diaphragm feeding assembly (5), a plastic pressing sheet feeding assembly (6), a spring feeding assembly (7), a mounting buckle feeding assembly (8), and a unloading assembly (9). The diaphragm feeding assembly (5) includes a base (51), on which a feeding tray (52) and a rotary drive motor (53) for driving the feeding tray (52) to rotate are rotatably connected. The feeding tray (52) is provided with a plurality of baffles (54) and guide pins (55). The plurality of baffles (54) form at least one circle and a support platform (56) for carrying the diaphragm is slidably connected thereon. The support platform (56) has a through hole in the center for the corresponding guide pin (55) to pass through. A diaphragm picking robot (57) is provided above the support platform (56). A circumferential positioning mechanism (58) is provided on one side of the feeding tray (52) for circumferential positioning of the feeding tray (52) when it rotates to a predetermined angle. A lifting mechanism (59) is provided on one side of the support platform (56) for driving the support platform (56) that rotates to the position directly below the diaphragm picking robot (57) to rise.

2. The pressure reducing valve diaphragm assembly machine according to claim 1, characterized in that: The circumferential positioning mechanism (58) includes positioning ports (521) evenly distributed on the side of the feeding tray (52), a positioning head (581) that can extend into the positioning port (521) to restrict the rotation of the feeding tray (52), and a positioning driver (582) for driving the positioning head (581) to move in the radial direction of the feeding tray (52), wherein the number of positioning ports (521) corresponds to the number of bearing platforms (56).

3. The pressure reducing valve diaphragm assembly machine according to claim 1, characterized in that: The lifting mechanism (59) includes a movable block (591) and a lifting driver (592) for driving the movable block (591) to move up and down. The movable block (591) is slidably connected to a support head (593) that can extend to the underside of the support platform (56) located directly below the diaphragm picking robot (57). The support head (593) is connected to a progressive driver (594) for driving it to move closer to and away from the support platform (56).

4. The pressure reducing valve diaphragm assembly machine according to claim 1, characterized in that: The diaphragm picking robot (57) includes a diaphragm picking suction cup (571) and a diaphragm moving module (572) for driving the diaphragm picking suction cup (571) to rise and fall and move between the carrier (56) and the clamp (3) in the radial direction of the turntable (2).

5. A pressure reducing valve diaphragm assembly machine according to claim 1, characterized in that: The assembly buckle feeding assembly (8) includes an assembly buckle vibratory plate (81) and an assembly buckle robot (82). The assembly buckle robot (82) includes an assembly buckle gripper (821) and an opening and closing driver (822) for driving the assembly buckle gripper (821) to open and close. The opening and closing driver (822) is rotatably connected to a moving stage (823). The moving stage (823) is connected to an assembly buckle moving module (824) for driving its lifting and lowering and moving in the radial direction of the turntable (2). A circumferential adjustment mechanism for driving the opening and closing driver (822) to rotate is provided between the moving stage (823) and the opening and closing driver (822) so that the assembly buckle is inserted into the mandrel in a suitable orientation.

6. A pressure reducing valve diaphragm assembly machine according to claim 5, characterized in that: The circumferential adjustment mechanism includes a linear actuator (825), the middle part of which is rotatably connected to a moving stage (823), and the output end of which is rotatably connected to an opening and closing actuator (822). The telescopic movement of the linear actuator (825) can be converted into the rotational movement of the opening and closing actuator (822).

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