One-way valve stop assembly assembly device and assembly method

Abstract

The application provides a one-way valve rotation-stopping assembly assembling device and method, which comprises a working turntable, an H support feeding device, a circular ring holder, a circular ring pressing device, a one-way valve rotation-stopping assembly assembling and detecting device, a one-way valve rotation-stopping assembly welding device, a one-way valve rotation-stopping assembly welding detecting device, and a one-way valve rotation-stopping assembly offline device. Through the automatic assembly of the H support and the circular ring, the production efficiency of the one-way valve rotation-stopping assembly is improved, and the production quality of the assembly is improved.

Description

Technical Field

[0001] This invention relates to the field of machining and assembly technology, specifically to an assembly device and method for a one-way valve anti-rotation component. Background Technology

[0002] As a device for regulating temperature in daily life, air conditioners are experiencing continuous market expansion due to ongoing urbanization and people's pursuit of a better life. This has led to a growing demand for valves, essential components for air conditioner manufacturing. However, most domestic valve manufacturers currently produce throttle valves using manual assembly methods. Given the increasing emphasis on improving working conditions and reducing labor intensity for frontline workers, this reliance on manual production is clearly no longer suitable. Therefore, automated production equipment is urgently needed to replace manual labor in valve manufacturing. Summary of the Invention

[0003] To overcome the shortcomings of the prior art, the present invention provides a one-way valve anti-rotation assembly device for the automated assembly of H-bracket and ring, which improves the production efficiency of one-way valve anti-rotation assembly. The assembled one-way valve anti-rotation assembly can be further used in one-way valve automated production line.

[0004] The purpose of this invention is to provide an assembly device for a one-way valve anti-rotation component, which uses an H-bracket and a ring to assemble the H-bracket mating part and the inner wall of the ring for a fixed fit. The device includes a working turntable and multiple process execution mechanisms. The process execution mechanisms include an H-bracket feeding device, a ring holder, a ring pressing device, a one-way valve anti-rotation component assembly and testing device, a one-way valve anti-rotation component welding device, a one-way valve anti-rotation component welding and testing device, and a one-way valve anti-rotation component unloading device. These process execution mechanisms are arranged sequentially along the circumference of the working turntable.

[0005] In some embodiments, the one-way valve anti-rotation assembly device further includes an H-bracket opening shaping device.

[0006] In some embodiments, the work turntable includes multiple fixing fixtures, each fixing fixture including a fixture body with a guide rail, a spring, and a preload block. The fixture body includes an upper plane, a bottom plane, and a side wall of a positioning H-bracket. The guide rail protrudes from the bottom plane, and the side of the guide rail is perpendicular to the upper plane, so that the vertical side of the H-bracket is perpendicular to the upper plane. The preload block engages with the side of the guide rail.

[0007] In some embodiments, the side of the preload block abutting the H-bracket includes a partial inclined surface facing the bottom surface of the clamp body and the H-bracket; the bottom surface of the clamp body also includes two through holes for the cylinder actuator push rod to pass through.

[0008] In some embodiments, the ring pressing device is a cylinder actuator-controlled pressing block mode, in which the cylinder actuator applies a predetermined pressure to the pressing block, and the pressing block presses the ring tightly.

[0009] In some embodiments, the fixing fixture further includes an upper cover plate that abuts against and is fixedly connected to the upper surface of the fixture body. The upper cover plate includes a through hole with a predetermined chamfer.

[0010] In some embodiments, the one-way valve anti-rotation assembly testing device includes a height limit bar, which confirms that the ring is properly press-fitted as the working turntable rotates and the ring passes through the height limit bar.

[0011] In some embodiments, the welding inspection device for the one-way valve anti-rotation assembly includes a lower cylinder actuator. The connecting rod of the lower cylinder actuator passes through two through holes on the bottom surface of the fixture body, pushes open the pre-tightening block, and further lifts the ring, causing the horizontal edge of the H-bracket to disengage from the guide rail by a predetermined distance. Then, the upper cylinder drives the push rod, which pushes the horizontal edge of the H-bracket until the upper cylinder reaches the predetermined pressure. The device is considered qualified if the ring does not fall off.

[0012] In some embodiments, the one-way valve anti-rotation assembly unloading device includes a preceding unloading device and a following unloading device, which perform gripping and releasing actions by a common robotic arm.

[0013] The one-way valve anti-rotation assembly device of the present invention includes a working turntable, an H-bracket feeding device, a ring holder, a ring pressing device, a one-way valve anti-rotation assembly testing device, a one-way valve anti-rotation assembly welding device, a one-way valve anti-rotation assembly welding testing device, and a one-way valve anti-rotation assembly unloading device; through the automated assembly of the H-bracket and the ring, the production efficiency of the one-way valve anti-rotation assembly is improved, and the production quality of the assembly is also improved.

[0014] Another object of the present invention is to provide a method for assembling a one-way valve anti-rotation assembly, characterized by comprising the following steps:

[0015] S1: Prepare the H-bracket and the ring;

[0016] S2: H-bracket loading and H-bracket opening shaping: The H-bracket is vibrated and loaded onto the rotating mechanism by the first H-bracket holder, which then erects the H-bracket. The second H-bracket holder grips the H-bracket and places it onto the shaping seat. The cylinder actuator of the H-bracket opening shaping device applies a predetermined pressure to the annular groove fixture, which then presses the mating part of the H-bracket and then disengages. The cylinder actuator of the H-bracket loading device controls the push rod to push upward to open the pre-tightening block. The third H-bracket holder grips the H-bracket and places it onto the guide rail. The vertical side of the H-bracket mates with the side wall of the guide rail, and the horizontal side of the H-bracket is supported on the guide rail. The push rod retracts downward, and the spring causes the pre-tightening block to push the H-bracket, causing the H-bracket to abut against the side wall of the fixture body and be fixed.

[0017] S3: Ring feeding: The ring feeds material via vibration through the ring feeding plate and is placed into the H bracket mating part by the ring holder;

[0018] S4: Ring press fitting: The H-bracket and the ring are connected by press fitting using a ring press fitting device;

[0019] S5: One-way valve anti-rotation assembly inspection: When the working turntable rotates, confirm that the ring is properly pressed by passing through the height limit bar;

[0020] S6: Welding of the one-way valve anti-rotation assembly: Weld the joint between the H bracket and the ring using laser welding or argon arc welding;

[0021] S7: Welding inspection of one-way valve anti-rotation assembly: The connecting rod of the lower cylinder actuator passes through the two through holes on the bottom of the fixture body to push open the pre-tightening block, and then further lifts the ring, so that the horizontal edge of the H bracket is separated from the guide rail by a predetermined distance. Then the upper cylinder drives the push rod, and pushes the horizontal edge of the H bracket through the push rod. When the upper cylinder reaches the predetermined pressure, the ring does not fall off, which is qualified.

[0022] S8: Product off the line: The product is off the line through the preceding off-line device and the following off-line device.

[0023] The assembly method for the one-way valve anti-rotation assembly of the present invention improves the production efficiency and quality of the one-way valve anti-rotation assembly through the automated assembly of the H-bracket and the ring. Attached Figure Description

[0024] Figure 1 This is a three-dimensional structural schematic diagram of the one-way valve anti-rotation assembly device of the present invention;

[0025] Figure 2 yes Figure 1 Top view;

[0026] Figure 3 This is a schematic diagram of the H-bracket structure;

[0027] Figure 4 This is a schematic diagram of a circular ring structure;

[0028] Figure 5 This is a schematic diagram of the one-way valve anti-rotation assembly.

[0029] Figure 6 This is a schematic diagram of the fixed clamp structure;

[0030] Figure 7 yes Figure 6 A schematic diagram of the fixing clamp without the cover plate;

[0031] Figure 8 yes Figure 6A schematic diagram of the fixing fixture without the cover plate and preload block;

[0032] Figure 9 yes Figure 6 A schematic diagram of the preload block structure of the fixing clamp;

[0033] Figure 10 This is a schematic diagram of the combined structure of the fixed clamp and the cylinder actuator;

[0034] Figure 11 This is a schematic diagram of the integral seat structure. Detailed Implementation

[0035] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in many forms and should not be construed as limited to the embodiments set forth herein; rather, they are provided so that the invention will be thorough and complete, and the concept of the exemplary embodiments will be fully conveyed to those skilled in the art. In the drawings, for clarity, the thickness of regions and layers is exaggerated. The same reference numerals in the drawings denote the same or similar structures, and therefore their detailed descriptions will be omitted.

[0036] The described features, structures, or characteristics can be combined in any suitable manner in one or more embodiments. Numerous specific details are provided in the following description to give a full understanding of embodiments of the invention. However, those skilled in the art will recognize that the invention can be practiced without one or more of the specific details described, or other methods, components, materials, etc. In other instances, well-known structures, materials, or operations are not shown or described in detail to avoid obscuring aspects of the invention.

[0037] The following examples describe the assembly apparatus and method for the one-way valve anti-rotation assembly of the present invention. These examples are only a part of the embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. All other embodiments obtained by those skilled in the art without inventive effort should be covered within the scope of protection of the present invention.

[0038] Please refer to the reference. Figures 1 to 11According to an embodiment of the present invention, a one-way valve anti-rotation assembly device is provided, which uses the assembly of H-bracket 01 and ring 02 to fix the mating part of H-bracket 01 and the inner wall of ring. The device includes a panel 300, a working turntable 200 and a process execution mechanism. The process execution mechanism includes an H-bracket feeding device 1, an H-bracket opening shaping device 9, a ring clamp 2, a ring pressing device 3, a one-way valve anti-rotation assembly assembly detection device 4, a one-way valve anti-rotation assembly welding device 5, a one-way valve anti-rotation assembly welding detection device 6, and a one-way valve anti-rotation assembly unloading device. The one-way valve anti-rotation assembly unloading device includes a pre-unloading device 7 and a post-unloading device 8. The H-bracket feeding device, H-bracket opening shaping device, ring clamp, ring pressing device, one-way valve anti-rotation component assembly and testing device, one-way valve anti-rotation component welding device, one-way valve anti-rotation component welding and testing device, pre-production unloading device, and post-production unloading device are arranged sequentially along the circumference of the working turntable. Each station simultaneously performs its prescribed actions, improving the production efficiency and quality of the one-way valve anti-rotation component through automated assembly of the H-bracket and ring. The one-way valve anti-rotation component unloading device can also adopt a single-station solution, with multiple gripping and releasing operations replacing the independent pre-production and post-production unloading devices. The H-bracket feeding device and H-bracket opening shaping device, as a whole, belong to the same station along the circumference of the working turntable.

[0039] In this technical solution, the working turntable 200 includes multiple fixing fixtures 100. Each fixing fixture 100 includes a fixture body 101 with a guide rail, a spring 104, and a pre-tightening block 103. The fixture body includes an upper surface, a bottom surface, and a side wall surface 106 for positioning the H-bracket. The guide rail 105 protrudes from the bottom surface, and the side of the guide rail is perpendicular to the upper surface, making the vertical side of the H-bracket 01 perpendicular to the upper surface. The pre-tightening block 103 slides in cooperation with the side of the guide rail 105. The side of the pre-tightening block that abuts against the H-bracket includes a partial inclined surface 1031, which faces the bottom surface of the fixture body and the H-bracket. The bottom surface of the fixture body also includes two through holes 1011. The cylinder actuator 14 controls the push rod to move upward through the two through holes and push to open the pre-tightening block. When the push rod moves downward, the spring pushes the pre-tightening block to press the H-bracket.

[0040] H-bracket 01 is fed by vibration from a universal feeding tray and placed onto a rotating mechanism via a first H-bracket holder 11. The rotating mechanism rotates 90° to erect the H-bracket.

[0041] The second H-bracket holder 12 grasps the H-bracket and places it on the shaping seat 15. The shaping seat includes an inverted U-shaped support seat 151 and a guide wall 152. The vertical side of the H-bracket mates with the side wall of the support seat, the horizontal side of the H-bracket is positioned with the top surface of the support seat, and the guide wall mates with both sides of the H-bracket to achieve precise positioning of the H-bracket. The mating part 011 of the H-bracket protrudes from the end face of the shaping seat 15.

[0042] The H-bracket opening shaping device 9 includes a concentric annular groove fixture that mates with the H-bracket mating part 011. The major diameter of the annular groove fixture is equal to or slightly smaller than the inner diameter of the ring 02, and the minor diameter of the annular groove fixture is equal to or slightly larger than the distance between the transverse sides 012 of the H-bracket. The H-bracket is a stamped part. The dimensions of the mating part between the H-bracket mating part 011 and the ring 02 are not precise due to deformation caused by stress and other factors. By pressing the mating part of the H-bracket with the annular groove, the next process can be immediately performed. In the next process, the mating part of the H-bracket and the ring can be assembled with an appropriate clearance or transition fit. The H-bracket opening shaping device is not a necessary device; high-precision H-brackets do not require opening shaping. The H-bracket opening shaping device 9 controls the annular groove fixture mode through a cylinder actuator. The cylinder actuator applies a predetermined pressure to the annular groove fixture, which presses the H-bracket mating part and then disengages.

[0043] After the H-bracket is shaped and opened, the cylinder actuator 14 controls the push rod to push upward to open the pre-tightening block. The third H-bracket gripper 13 grabs the H-bracket and places it on the guide rail 105. The vertical side of the H-bracket mates with the side of the guide rail, and the horizontal side 012 of the H-bracket is supported on the guide rail. The push rod retracts downward, and the spring causes the pre-tightening block to push the H-bracket, so that the H-bracket abuts against the side wall of the fixture body and is fixed. The first, second, and third H-bracket grippers all use general-purpose gantry robots, which can easily grip and place parts with high precision.

[0044] The above scheme uses three H-bracket holders, but a single H-bracket holder can also be used. The robot arm grabs the H-bracket, rotates it, and places it on the guide rail.

[0045] The ring 02 is also fed by a vibratory feeder and placed into the H-bracket mating part 011 by the ring holder 2. The H-bracket and the ring are then mated by the ring pressing device 3. The ring holder also uses a common robotic arm for easy gripping and placing of parts. The ring pressing device 3 is a cylinder actuator-controlled pressing block mode. The cylinder actuator applies a predetermined pressure to the pressing block, which then presses the ring tightly. The fixed fixture 100 also includes an upper cover plate 102, which abuts against and is fixedly connected to the upper surface of the fixture body. The upper cover plate includes a through hole with a predetermined chamfer. When the ring holder is not accurately positioning the ring, the chamfer can guide the outer circumference of the ring. When the ring pressing device presses the ring, the through hole further guides the ring.

[0046] Check device 4 for assembling the one-way valve anti-rotation assembly: when the ring is press-fitted to the predetermined position, its height relative to the disk surface of the working turntable is determined. By adopting the height-limiting rod mode, when the working turntable rotates, as long as the ring can pass through the height-limiting rod, the press-fitting of the ring can be confirmed as qualified. In addition, a camera detection device can also be used to detect whether the press-fitting of the H-bracket and the ring meets the requirements through a visual solution.

[0047] The welding device 5 for the one-way valve anti-rotation assembly uses a laser welding machine or argon arc welding machine. At this station, the laser welding torch or argon arc welding torch is aligned with the joint of the H-bracket and the ring for automatic welding.

[0048] During the welding inspection of the one-way valve anti-rotation assembly, since the transverse edge of the H-bracket is supported on the guide rail, it is impossible to directly use an air cylinder to drive a push rod to press the transverse edge of the H-bracket to measure the welding strength. Therefore, when the welding detection device 6 for the one-way valve anti-rotation assembly performs detection, first, the connecting rod of the lower air cylinder actuator passes through the two through holes on the bottom surface of the fixture body, pushes to open the pre-tightening block, and further jacks up the ring, so that the transverse edge of the H-bracket is separated from the guide rail by a predetermined distance and kept in this state. Then the upper air cylinder drives the push rod, the push rod presses the transverse edge of the H-bracket, and when the air cylinder reaches the predetermined pressure, the ring does not fall off, which is qualified. The connecting rod mechanism of the lower air cylinder actuator has the same principle as the air cylinder actuator 14.

[0049] The off-line device for the one-way valve anti-rotation assembly includes a pre-sequence off-line device 7 and a post-sequence off-line device 8, with relatively simple actuators. The pre-sequence off-line device uses a general-purpose manipulator to grab the entire ring of the one-way valve anti-rotation assembly to the blanking position, or if there is a welding defective product, grabs the individual ring to the blanking position, and performs the same action regardless of whether it is a qualified product or a defective product. The post-sequence off-line device uses a general-purpose manipulator: if there is a remaining defective H-bracket after the action of the pre-sequence off-line device, it is grabbed into the defective product box; if there is no defective product after the action of the pre-sequence off-line device, an empty grabbing action is performed before placing into the defective product box. The same action is performed in both cases, which simplifies the program, avoids executing exception routines, and improves efficiency.

[0050] An assembling method for a one-way valve anti-rotation assembly, comprising the following steps: preparing an H-bracket and a ring, sequentially performing H-bracket feeding and H-bracket opening shaping, ring feeding, ring press-fitting, assembling inspection of the one-way valve anti-rotation assembly, welding of the one-way valve anti-rotation assembly, welding inspection of the one-way valve anti-rotation assembly, and product off-line.

[0051] The details are as follows:

[0052] S1: Prepare the H-bracket and the ring;

[0053] S2: H-bracket loading and H-bracket opening shaping: The H-bracket is vibrated and loaded onto the rotating mechanism by the first H-bracket holder, which then erects the H-bracket. The second H-bracket holder grips the H-bracket and places it onto the shaping seat. The cylinder actuator of the H-bracket opening shaping device applies a predetermined pressure to the annular groove fixture, which then presses the mating part of the H-bracket and then disengages. The cylinder actuator of the H-bracket loading device controls the push rod to push upward to open the pre-tightening block. The third H-bracket holder grips the H-bracket and places it onto the guide rail. The vertical side of the H-bracket mates with the side of the guide rail, and the horizontal side of the H-bracket is supported on the guide rail. The push rod retracts downward, and the spring causes the pre-tightening block to push the H-bracket, causing the H-bracket to abut against the side wall of the fixture body and be fixed.

[0054] S3: Ring feeding: The ring feeds material via vibration through the ring feeding plate and is placed into the H bracket mating part by the ring holder;

[0055] S4: Ring press fitting: The H-bracket and the ring are connected by press fitting using a ring press fitting device;

[0056] S5: One-way valve anti-rotation assembly inspection: When the working turntable rotates, confirm that the ring is properly pressed into place by passing the ring through the height limit bar;

[0057] S6: Welding of the one-way valve anti-rotation assembly: Weld the joint between the H bracket and the ring using laser welding or argon arc welding;

[0058] S7: Welding inspection of one-way valve anti-rotation assembly: The connecting rod of the lower cylinder actuator passes through the two through holes on the bottom of the fixture body to push open the pre-tightening block, and then further lifts the ring, so that the horizontal edge of the H bracket is separated from the guide rail by a predetermined distance. Then the upper cylinder drives the push rod, and pushes the horizontal edge of the H bracket through the push rod. When the upper cylinder reaches the predetermined pressure, the ring does not fall off, which is qualified.

[0059] S8: Product off the line: The product is off the line through the preceding off-line device and the following off-line device.

[0060] The assembly method for the one-way valve anti-rotation assembly enables automated assembly of the H-bracket and the ring, improving the production efficiency and quality of the one-way valve anti-rotation assembly.

[0061] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A one-way valve anti-rotation assembly device, using an H-bracket and a ring for assembly, so that the mating part of the H-bracket and the inner wall of the ring are fixedly fitted, including a working turntable and multiple process actuators, characterized in that, The process execution mechanism includes an H-bracket feeding device, a ring clamp, a ring pressing device, a one-way valve anti-rotation component assembly and testing device, a one-way valve anti-rotation component welding device, a one-way valve anti-rotation component welding and testing device, and a one-way valve anti-rotation component unloading device. These process execution mechanisms are arranged sequentially along the circumference of the work turntable. The work turntable includes multiple fixed clamps, each consisting of a clamp body with guide rails, a spring, and a preload block. The clamp body includes an upper plane, a bottom plane, and a side wall for positioning the H-bracket. The guide rails protrude from the bottom plane, and the side of the guide rails is perpendicular to the upper plane, making the vertical side of the H-bracket perpendicular to the upper plane. The pre-tightening block mates with the side of the guide rail; the side of the pre-tightening block abutting against the H-bracket includes a partial inclined surface, which faces the bottom surface of the fixture body and the H-bracket; the bottom surface of the fixture body also includes two through holes for the push rod of the cylinder actuator to pass through; the welding inspection device for the one-way valve anti-rotation assembly includes a lower cylinder actuator, the connecting rod of the lower cylinder actuator passes through the two through holes on the bottom surface of the fixture body, pushes open the pre-tightening block, and further lifts the ring, so that the horizontal edge of the H-bracket is separated from the guide rail by a predetermined distance, and then the upper cylinder drives the push rod, which pushes the horizontal edge of the H-bracket. When the upper cylinder reaches the predetermined pressure, the ring is confirmed to be qualified as long as it does not fall off.

2. The one-way valve anti-rotation assembly assembly device according to claim 1, characterized in that, The ring pressing device is a cylinder actuator-controlled pressing block mode. The cylinder actuator applies a predetermined pressure to the pressing block, and the pressing block presses the ring tightly.

3. The one-way valve anti-rotation assembly assembly device according to claim 1, characterized in that, The fixing fixture also includes an upper cover plate, which abuts against and is fixedly connected to the upper surface of the fixture body. The upper cover plate includes a through hole with a predetermined chamfer.

4. The one-way valve anti-rotation assembly assembly device according to claim 1, characterized in that, The one-way valve anti-rotation assembly testing device includes a height limit bar. The ring is confirmed to be properly pressed into place by passing through the height limit bar when the working turntable rotates.

5. The one-way valve anti-rotation assembly assembly device according to claim 1, characterized in that, The one-way valve anti-rotation assembly unloading device includes a pre-unloading device and a post-unloading device, which are operated by a general-purpose robotic arm to perform gripping and releasing actions.

6. The one-way valve anti-rotation assembly assembly device according to claim 1, characterized in that, The one-way valve anti-rotation assembly device also includes an H-bracket opening shaping device.

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