Automatic production and detection equipment for pressure release valve

Abstract

The utility model discloses a pressure release valve automatic production detection device, which is used for installing and detecting a pressure release valve, the pressure release valve is composed of a coil assembly and an iron core assembly, the pressure release valve automatic production detection device comprises a transfer device, the transfer device comprises a rotatable transfer turntable, and the transfer turntable is provided with a bearing seat used for fixing the coil assembly; an assembling station, a winding station, a winding station and a winding station are sequentially arranged along the periphery of the transfer rotating disc, wherein the assembling station is used for assembling the coil assembly and the iron core assembly; the stroke detection station is used for detecting whether the stroke of the iron core assembly is qualified or not; and the air tightness detection station is used for detecting the air tightness of the pressure release valve and comprises a lower pressing block, and the lower pressing block is connected with a pressure sensor. The utility model has the beneficial effects that multiple functions such as assembly and detection are integrated on one device, the production efficiency can be improved, the turnover period can be shortened, and the production quality can be ensured.

Description

Technical Field

[0001] This utility model relates to the field of valve technology, and specifically to an automatic production and testing equipment for pressure relief valves. Background Technology

[0002] A pressure relief valve is a pipeline accessory used to open and close pipelines, control flow direction, and regulate and control the parameters (temperature, pressure, and flow rate) of the transported medium. As a control component in a fluid transport system, a pressure relief valve has functions such as shut-off, regulation, flow diversion, backflow prevention, pressure stabilization, flow splitting, or overflow pressure relief.

[0003] In the production process of pressure relief valves, existing technologies separate assembly and testing. Testing needs to be carried out after assembly, and the valves need to be moved between different devices, which is time-consuming and labor-intensive. Moreover, the accuracy of assembly cannot be guaranteed. For example, the invention patent application No. 201910072126.2 discloses a pressure relief valve assembly machine, which realizes the assembly of pressure relief valves, but it does not have a testing function and requires a separate device for testing. Therefore, there is an urgent need for a processing equipment that integrates assembly and testing. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides an automatic production and testing equipment for pressure relief valves, which realizes the installation and automatic testing of pressure relief valves. The equipment integrates multiple functions such as assembly and testing, which helps to improve production efficiency and reduce turnover cycle.

[0005] Specifically, this utility model discloses an automatic production and testing equipment for pressure relief valves, used for installing and testing pressure relief valves. The pressure relief valve consists of a coil assembly and an iron core assembly, and includes: a transfer device, which comprises a rotatable rotating disc, on which a receiving seat for fixing the coil assembly is provided; and arranged sequentially around the rotating disc are:

[0006] An assembly station for assembling the coil assembly and the core assembly;

[0007] The stroke detection station is used to detect whether the stroke of the iron core assembly is qualified. It includes a displacement sensor and a moving block. The moving block moves vertically back and forth to press down on the iron core assembly. The displacement sensor detects the pressing distance of the moving block.

[0008] An airtightness testing station is used to test the airtightness of a pressure relief valve, and includes a pressure block connected to a pressure sensor.

[0009] The advantage of adopting the above technical solution is that it integrates multiple functions such as assembly and testing on a single device, which helps to improve production efficiency, reduce turnover cycle, and ensure production quality.

[0010] Furthermore, the assembly station includes a pressing component, a fixing seat, and a clamping component. The fixing seat is mounted on the pressing component and aligned with the receiving seat. The bottom of the fixing seat has a placement groove for accommodating the iron core component. The clamping component is located at the bottom of the fixing seat and is used to clamp the valve core.

[0011] The advantage of adopting the above technical solution is that the fixing seat is used to fix the iron core assembly, the receiving seat is used to fix the coil assembly, the valve core on the iron core assembly is clamped by the clamping component before installation, and the pressing component presses down to complete the installation, ensuring that the valve core is installed in place.

[0012] Furthermore, the clamping member includes symmetrically arranged grippers and connecting rods, the connecting rods being connected to a driving member, and the connecting rods driving the grippers to move relative to each other.

[0013] The advantage of adopting the above technical solution is that the gripper plays a positioning role, effectively preventing the valve core from tilting, ensuring the assembly quality of the pressure relief valve, and improving the yield rate.

[0014] Furthermore, a laser marking device is provided between the airtightness testing station and the material sorting station.

[0015] The advantage of adopting the above technical solution is that the laser marking device is used to mark the outside of the product, so that one machine can complete the processing, inspection, marking and sorting of materials, thereby improving the assembly efficiency.

[0016] Furthermore, the airtightness testing station also includes an inflation assembly, which includes an inflation head that inflates the pressure relief valve, and a pressure block located on the upper side of the iron core assembly for pressing down the valve core.

[0017] The advantage of adopting the above technical solution is that after the air inflator fills the pressure relief valve with air, the pressure block presses down on the iron core assembly. Since the pressure relief valve is filled with gas, the pressure sensor detects the pressure during the pressing process. If the pressure reaches the set value, it means that the airtightness of the pressure relief valve meets the requirements. If the pressure does not reach the set value, it means that the airtightness does not meet the requirements.

[0018] Furthermore, a material sorting station is provided on the rear side of the laser marking device. The material sorting station includes a material unloading robot, and the conveyor belt is located on the side of the material unloading robot. The conveyor belt includes a good product conveyor belt and a defective product conveyor belt.

[0019] The advantage of adopting the above technical solution is that, after processing and inspection, good products and defective products are sorted and classified by a material unloading robot. Good products are placed on the good product conveyor belt, and defective products are placed on the defective product conveyor belt.

[0020] Furthermore, a sealing ring installation station is provided between the assembly station and the stroke detection station for installing the sealing ring.

[0021] Furthermore, a drive assembly is provided on the lower side of the rotating disk to drive its rotation.

[0022] The advantage of adopting the above technical solution is that the rotating component drives the rotating turntable to rotate, rotating the receiving seat to each workstation for assembly.

[0023] Furthermore, the assembly station also includes a loading gripper, which is connected to a horizontal moving module and a vertical moving module.

[0024] The advantage of adopting the above technical solution is that automatic feeding is achieved by using a feeding gripper to pick up the coil assembly and the iron core assembly. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of this utility model, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0026] Figure 1 This is a schematic diagram of the overall structure of the automatic production and testing equipment for pressure relief valves of this utility model.

[0027] Figure 2 This is a schematic diagram of the mounting structure of the fixed base of this utility model.

[0028] Figure 3 This is a schematic diagram of the clamping component structure of this utility model.

[0029] Figure 4 This is a schematic diagram of the stroke detection station structure of this utility model.

[0030] Figure 5 This is a schematic diagram of the mounting structure of the lower pressure block of this utility model.

[0031] Figure 6 This is a schematic diagram of the mating structure of the pressure relief valve and valve seat of this utility model.

[0032] The reference numerals used in the attached figures are as follows:

[0033] Rotary turntable 1; receiving seat 11; assembly station 2; pressing assembly 21; fixed seat 22; clamping component 23; gripper 231; connecting rod 232; feeding gripper 24; sealing ring installation station 3; stroke detection station 4; displacement sensor 41; moving block 42; fixed plate 43; guide shaft 44; air tightness detection station 5; pressing block 51; pressure sensor 52; inflation head 53; unloading and sorting station 6; unloading robot 61; conveyor belt 62; laser marking device 7; coil assembly 8; iron core assembly 81; sealing ring 82. Detailed Implementation

[0034] The present invention will now be described in further detail with reference to the accompanying drawings.

[0035] like Figure 1 As shown, this utility model discloses an automatic production and testing equipment for pressure relief valves, used for installing and testing pressure relief valves. The pressure relief valve consists of a coil assembly 8 and an iron core assembly 81, and includes: a transfer device, the transfer device including a rotatable rotating disk 1, the rotating disk 1 being provided with a receiving seat 11 for fixing the coil assembly 8, the receiving seat 11 being provided with a positioning post for positioning the pressure relief valve, and the pressure relief valve having a positioning hole that mates with the positioning post; and arranged sequentially around the rotating disk 1:

[0036] Assembly station 2 is used to assemble the coil assembly 8 and the iron core assembly 81;

[0037] Sealing ring installation station 3 is used to install sealing ring 82;

[0038] Stroke detection station 4 is used to detect whether the stroke of the iron core assembly is qualified;

[0039] Air tightness testing station 5 is used to test the air tightness of the pressure relief valve;

[0040] The material sorting station 6 includes a conveyor belt 62 for screening and unloading.

[0041] The advantage of adopting the above technical solution is that it integrates multiple functions such as assembly and testing on a single device, which helps to improve production efficiency, reduce turnover cycle, and ensure production quality.

[0042] In some implementations, assembly station 2 includes a pressing assembly 21, a fixing base 22, and a clamping element 23 (e.g., Figure 2 As shown, the fixing seat 22 is mounted on the pressing component 21. The pressing component 21 is a vertically arranged linear pressing module, which can be implemented by a hydraulic cylinder or a ball screw module. The fixing seat 22 is aligned with the receiving seat 11, and a placement groove for accommodating the iron core assembly 81 is provided at the bottom. The placement groove is provided with an adsorption hole, which is connected to an air suction device. When the iron core assembly 81 is placed in the placement groove, the adsorption hole adsorbs air and adsorbs the iron core assembly 81. The clamping member 23 is provided at the bottom of the fixing seat 22 for clamping the valve core. When the iron core assembly 81 is placed in the placement groove, the clamping member 23 clamps and positions the iron core assembly 81. The pressing component 21 first presses down a certain distance, then the clamping member 23 releases, and the pressing component 21 continues to press down to install the iron core assembly 81 into place.

[0043] Furthermore, the clamping member 23 includes symmetrically arranged grippers 231 and connecting rods 232 (e.g., Figure 3As shown, the connecting rod 232 is connected to a driving component, which can be a clamping cylinder, fixed on the side of the fixed seat 22. The connecting rod 232 drives the gripper 231 to move relative to each other. When the gripper 231 is closed, it clamps the valve core so that the valve core is positioned above the coil assembly 8. After clamping, the fixed seat 22 first descends a certain distance, and then the gripper releases. The fixed seat 22 continues to descend to complete the assembly. The gripper 231 plays a positioning role, ensuring that the valve core is installed in the coil assembly, effectively preventing the valve core from tilting, ensuring the assembly quality of the pressure relief valve, and improving the yield rate.

[0044] In some implementation schemes, a laser marking device 7 is set between the airtightness testing station 5 and the unloading and sorting station 6. The laser marking device 7 is a laser marking machine that can mark the product surface according to the settings. This is existing technology. The laser marking device 7 is used to mark the outer side of the product, so that one machine can complete the processing, testing, marking and sorting unloading, thereby improving assembly efficiency.

[0045] In some implementations, the stroke detection station 4 includes: a displacement sensor 41, a moving block 42, and a support frame (e.g., Figure 4 As shown, displacement sensor 41 is installed on the side of moving block 42. Moving block 42 moves vertically back and forth, pressing down on iron core assembly 81. Displacement sensor 41 detects the pressing distance of moving block 42. A drive module is connected to the upper side of moving block 42. The drive module uses a vertically set hydraulic cylinder. The hydraulic cylinder is mounted on a support frame. The output end of the hydraulic cylinder is set downward and a fixed plate 43 is installed. Fixed plate 43 is connected to moving block 42 through guide shaft 44. A spring is set on guide shaft 44. Moving block 42 slides along guide shaft 44. The stroke detection station 4 is also equipped with a position sensor. When the product is in position, moving block 42 presses down until it contacts the iron core and presses down the iron core. After pressing down to the position, moving block 42 stops moving. At this time, displacement sensor 41 senses the entire moving distance of moving block 42 and judges the comparison between the descent distance and the set distance. If it is within the set distance fluctuation range, it means that the stroke of the pressure relief valve meets the requirements. Because it is connected by a spring, even if the hydraulic cylinder continues to descend after moving block 42 stops moving, it will not damage the pressure relief valve.

[0046] In some implementations, the airtightness testing station 5 includes an inflation assembly and a pressure block 51. The pressure block 51 is connected to a pressure sensor 52. The inflation assembly includes an inflation head 53 and an inflation pipe. A solenoid valve is installed on the inflation pipe. The inflation head 53 has the same shape as the opening on the pressure relief valve. The inflation head 53 inflates the pressure relief valve. The pressure block 51 is located on the upper side of the core assembly 81 and is used to press down the valve core. The inflation head 53 is connected to an extension cylinder. When the receiving seat 11 moves the product into position, the extension cylinder extends, and the inflation head 53 connects to the opening on the pressure relief valve. The pressure block 51 is controlled to move up and down reciprocally by the pressure cylinder. After the inflation head 53 inflates the pressure relief valve, the pressure block 51 presses down on the core assembly 81. Since the pressure relief valve is filled with gas, the pressure sensor 52 detects the pressure during the pressing process. If the set value is reached, it means that the airtightness of the pressure relief valve meets the requirements; if the set value is not reached, it means that the airtightness does not meet the requirements.

[0047] Furthermore, the unloading and sorting station 6 includes an unloading robot 61 and a conveyor belt. The conveyor belt is located on the side of the unloading robot 61 and includes a good product conveyor belt and a defective product conveyor belt. After processing and inspection, good and defective products are sorted by the unloading robot 61. The unloading robot 61 picks up the products, placing good products onto the good product conveyor belt and defective products onto the defective product conveyor belt.

[0048] Furthermore, a drive assembly is provided on the lower side of the rotary table 1 to drive its rotation. The drive assembly includes a motor. The rotary table 1 is installed on the equipment and is provided with a rotating shaft. The rotating shaft is connected to the motor. The rotation of the motor drives the transmission shaft to rotate, and the rotary table 1 rotates, which drives the receiving seat 11 to circulate and transfer the products to various workstations for processing.

[0049] Furthermore, the assembly station 2 also includes a loading gripper 24, which is connected to a horizontal moving module and a vertical moving module. Both the horizontal moving module and the vertical moving module are linear modules that drive the loading gripper 24 to move. The opening and closing of the loading gripper 24 is controlled by a clamping cylinder.

[0050] The advantage of adopting the above technical solution is that automatic feeding is achieved by using the feeding gripper 24 to clamp the coil assembly 8 and the iron core assembly 81.

[0051] In the processing, firstly, the loading gripper 24 clamps the coil assembly 8 onto the receiving seat 11, and then clamps the iron core assembly 81 into the fixed seat 22. At this time, the fixed seat 22 presses down to fix the iron core assembly 81 and the coil assembly 8. Then, the rotating disc 1 rotates, driving the pressure relief valve after pressing to the sealing ring installation station 3 for manual installation of the sealing ring 82. After installation, it rotates to the stroke detection station 4 to check whether the stroke is qualified. After the detection, it rotates to the air tightness detection station 5 to check the air tightness of the pressure relief valve. Then, the laser marking machine marks the valve. Finally, the unloading robot 61 sorts and unloads the valve. Good products flow out through the good product conveyor belt, and defective products flow out through the defective product conveyor belt. One machine completes assembly, inspection, marking, and sorting and unloading, improving processing efficiency and ensuring the quality of the pressure relief valve.

[0052] For those skilled in the art, various modifications and improvements can be made without departing from the inventive concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model.

Claims

1. An automatic production and testing equipment for pressure relief valves, used for installing and testing pressure relief valves, wherein the pressure relief valves are composed of a coil assembly (8) and an iron core assembly (81), characterized in that, include: A transfer device, comprising a rotatable rotating disk (1) on which a receiving seat (11) for fixing a coil assembly (8) is provided; and arranged sequentially around the rotating disk (1): Assembly station (2) is used to assemble the coil assembly (8) and the core assembly (81); The stroke detection station (4) is used to detect whether the stroke of the iron core assembly is qualified. It includes a displacement sensor (41) and a moving block (42). The moving block (42) moves vertically back and forth and presses down the iron core assembly (81). The displacement sensor (41) detects the pressing distance of the moving block (42). The air tightness testing station (5) is used to test the air tightness of the pressure relief valve, including a pressure block (51) connected to a pressure sensor (52).

2. The automatic production and testing equipment for pressure relief valves according to claim 1, characterized in that, The assembly station (2) includes a pressing component (21), a fixing seat (22), and a clamping component (23). The fixing seat (22) is installed on the pressing component (21) and is aligned with the receiving seat (11). The bottom is provided with a placement groove for accommodating the iron core component (81). The clamping component (23) is located at the bottom of the fixing seat (22) and is used to clamp the valve core.

3. The automatic production and testing equipment for pressure relief valves according to claim 2, characterized in that, The clamping member (23) includes symmetrically arranged grippers (231) and connecting rods (232). The connecting rods (232) are connected to a driving member, and the connecting rods (232) drive the grippers (231) to move relative to each other.

4. The automatic production and testing equipment for pressure relief valves according to claim 1, characterized in that, A laser marking device (7) is provided between the airtightness testing station (5) and the material sorting station (6).

5. The automatic production and testing equipment for pressure relief valves according to claim 1, characterized in that, The air tightness testing station (5) further includes an inflation assembly, which includes an inflation head (53) that inflates the pressure relief valve. The pressure block (51) is located on the upper side of the iron core assembly (81) and is used to press down the valve core.

6. The automatic production and testing equipment for pressure relief valves according to claim 4, characterized in that, The laser marking device (7) is provided with a material sorting station (6) on the rear side. The material sorting station (6) includes a material unloading robot (61) and a conveyor belt (62) on the side of the material unloading robot (61). The conveyor belt includes a good product conveyor belt and a defective product conveyor belt.

7. The automatic production and testing equipment for pressure relief valves according to claim 1, characterized in that, A sealing ring installation station (3) is provided between the assembly station (2) and the stroke detection station (4) for installing the sealing ring.

8. The automatic production and testing equipment for pressure relief valves according to claim 1, characterized in that, A drive assembly is provided on the lower side of the rotating disk (1) to drive its rotation.

9. The automatic production and testing equipment for pressure relief valves according to claim 1, characterized in that, The assembly station (2) also includes a loading gripper (24), which is connected to a horizontal moving module and a vertical moving module.

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