An assembling apparatus of an intake valve for an engine pump body

Abstract

This invention proposes an assembly device for an intake valve used in an engine pump body, comprising: a machine base and a conveyor line disposed on the machine base. The conveyor line is used for cyclically conveying a material-carrying fixture. Along the conveyor line are sequentially arranged: a first loading station, a second loading station, a third loading station, a first inspection station, a fourth loading station, and an unloading station. Through this method, component loading and component quality inspection can be simultaneously achieved, not only realizing the equipment's functionality but also reducing the space occupied by the equipment and effectively improving assembly efficiency.

Description

Technical Field

[0001] This invention relates to the field of intake valve assembly technology, and in particular to an assembly device for an intake valve for an engine pump body. Background Technology

[0002] An intake valve for an engine pump body, such as Figure 1 As shown, the main components include valve seat, valve stem, spring, spring seat, and gasket. During the assembly of this intake valve, the dimensions of the valve seat and valve stem need to be verified and measured first to screen out defective products. After the valve seat, valve stem, spring, and spring seat are assembled, the elasticity of the spring needs to be measured, and a gasket with a suitable thickness is selected for assembly based on the elastic performance of the spring.

[0003] In existing technologies, only corresponding assembly equipment is set up for a single process. After the parts are assembled on the current processing equipment, the parts are transferred to the next equipment for assembly. This does not form a unified and comprehensive assembly system. Furthermore, separate quality inspection equipment is set up for each part, which requires multiple back-and-forth handling of parts between the assembly and inspection equipment. This results in low assembly efficiency. In addition, the numerous assembly and inspection equipment result in a large footprint and high cost. Summary of the Invention

[0004] To address the aforementioned problems, this invention proposes an assembly device for an intake valve for an engine pump body that is highly integrated and effectively improves working efficiency.

[0005] The main components of this invention include: a machine base, a conveyor line mounted on the machine base, the conveyor line being used for cyclically conveying material-carrying fixtures, and the following are sequentially arranged along the conveyor line: a first loading station, a second loading station, a third loading station, a first inspection station, a fourth loading station, and an unloading station. The first loading station is used to load valve seats and detect the inner diameter of the center hole of the valve seat; the second loading station is used to load valve stems and detect the outer diameter of the main body of the valve stem; the third loading station is used to load springs and spring seats; the first detection station is used to detect the deformation of the spring under constant force; the fourth loading station selects a shim of appropriate thickness for loading according to the deformation of the spring; and the unloading station is used to unload the assembled products.

[0006] Preferably, the first feeding station includes: a first palletizing and sorting machine for palletizing and sorting the first material tray; an inner diameter detection component for detecting the inner diameter of the center hole of the valve seat; a first robotic arm for transporting the valve seat; and a plurality of valve seats are arranged and stacked in the first material tray. The inner diameter detection component includes: a first support platform, a first fixture for placing a valve seat on the first support platform, a detection hole being opened at the bottom of the first fixture corresponding to the position of the center hole of the valve seat, and a liftable pneumatic measuring instrument being arranged below the first support platform, the probe of the pneumatic measuring instrument being able to pass through the detection hole and be inserted into the center hole of the valve seat.

[0007] Preferably, the second feeding station includes: a second palletizing and sorting machine for stacking and sorting the second material tray; an outer diameter detection component for detecting the outer diameter of the valve stem body; a second robotic arm for transporting the valve stem; and a plurality of valve stems are arranged and stacked in the second material tray. The outer diameter detection assembly includes: a second support platform, on which a ring probe is mounted, and the valve stem body can be inserted into the ring probe.

[0008] Preferably, the third loading station includes: a spring loading assembly for discharging and distributing springs, a spring seat loading assembly for discharging and distributing spring seats, and a first conveying assembly for transferring and assembling springs and spring seats onto the valve stem. The first conveying assembly is disposed between the spring seat feeding assembly and the conveyor line, and includes: a discharge sleeve for assembling springs, a second pneumatic gripper for clamping spring seats, a first traversing component and a first lifting component for driving the discharge sleeve and the second pneumatic gripper to move synchronously.

[0009] Preferably, the spring feeding assembly includes: a first vibratory plate, wherein the discharge end of the first vibratory plate is provided with a first material distribution component; The first material distribution component includes: a first support, a first material distribution plate disposed on the first support, and a second rotary cylinder that drives the first material distribution plate to rotate in a vertical direction. A receiving groove is provided on one side of the first material distribution plate. The first support has a discharge hole corresponding to the lower part of the first material distribution plate. A discharge pipe is connected in the discharge hole. The end of the discharge pipe away from the discharge hole is connected to the discharge sleeve. The receiving groove can be connected to the discharge end of the first vibrating plate for spring receiving. The receiving groove can be connected to the discharge hole for spring distributing.

[0010] Preferably, the spring seat feeding assembly includes: a second vibrating plate, a straight material channel connected to the second vibrating plate, a matching vibrating motor disposed below the straight material channel, and a second material distribution component disposed at the discharge end of the straight material channel; The second material distribution component includes: a second support, a second material distribution plate disposed on the second support, and a third rotary cylinder for driving the second material distribution plate to rotate in the horizontal direction. The second material distribution plate has temporary storage grooves at opposite ends along the diameter direction. The temporary storage grooves can be connected to the discharge end of the straight material channel for spring seat material receiving.

[0011] Preferably, the first inspection station includes: a third support platform, a pressure application component that applies constant force to the spring, a height difference measuring instrument for detecting the spring deformation, a second handling component for handling products, and a second fixture for placing products on the third support platform, wherein the height difference measuring instrument is disposed on both sides of the second fixture; The pressure application component includes: a voice coil motor that outputs pressure, and a second transverse component that drives the voice coil motor to move closer to and further away from the second fixture. The output end of the voice coil motor faces downward and is equipped with a sleeve pressure head. The sleeve pressure head is hollow so as to avoid the valve stem when it is pressed onto the spring seat.

[0012] Preferably, the fourth feeding station includes: a feeding assembly for providing gaskets of different thicknesses, a pushing assembly for assembling the gaskets onto the valve stem, and a third conveying assembly for transporting the gaskets from the feeding assembly to the pushing assembly. The pushing assembly includes: a mounting plate, a pushing component disposed on the mounting plate, and a sixth lifting cylinder for driving the mounting plate to rise and fall. The upper end face of the mounting plate has a horizontally extending pushing channel. The pushing component includes a pushing plate and a pushing cylinder for driving the pushing plate to move along the pushing channel. The pushing channel has a vertically penetrating separation hole. The side of the separation hole near the pushing plate has a gasket mounting groove. The mounting plate is used to press down the spring seat. One end of the valve stem body with a slot passes through the separation hole.

[0013] Preferably, the feeding assembly includes: a rotating disk and a pad transfer component disposed on one side of the rotating disk. A rotary motor and a reducer are disposed below the rotating disk. A plurality of clip-type hoppers are equally spaced along the circumference of the rotating disk. Each clip-type hopper contains pads of different thicknesses. Each clip-type hopper includes a hopper section and a distribution section disposed at the bottom of the hopper section. The hopper section has a accommodating space for stacking pads. The distribution section includes a bottom plate. A horizontally extending discharge channel is opened on the bottom plate. The discharge channel is connected to the accommodating space. A baffle plate is movably disposed in the discharge channel. A spring is connected between the end of the baffle plate away from the pad transfer component and the bottom plate. The gasket transfer component includes: an insert plate for receiving the gasket, and a third transverse cylinder for driving the insert plate to be inserted into the discharge channel. The insert plate has a receiving groove on one end near the rotary disk, and the receiving groove has a vacuum suction hole.

[0014] Preferably, the unloading assembly includes: a visual inspection camera for photographing and inspecting the product, and a third robotic arm for gripping and unloading the product from the loading fixture.

[0015] The beneficial effects of this invention are as follows: This invention uses multiple automated feeding mechanisms to sequentially assemble parts into the material-carrying fixtures on the conveyor line. During the feeding and assembly process, the parts are inspected, and finally, an automated unloading robot is used to unload the parts, realizing fully automated feeding, assembly, and unloading of the product, which greatly improves the assembly efficiency and accuracy of the product. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the product's air intake valve; Figure 2 This is a three-dimensional structural schematic diagram of a preferred embodiment; Figure 3 A three-dimensional structural schematic diagram of a preferred embodiment of the conveyor line; Figure 4 A three-dimensional structural schematic diagram of a preferred embodiment of a material-carrying fixture; Figure 5 A three-dimensional structural diagram of a preferred embodiment of the flipping component; Figure 6 A three-dimensional structural diagram of the first loading station in a preferred embodiment; Figure 7 This is a three-dimensional structural schematic diagram of an inner diameter detection component according to a preferred embodiment; Figure 8 This is a three-dimensional structural diagram of the second loading station in a preferred embodiment; Figure 9 A three-dimensional structural schematic diagram of an outer diameter detection component according to a preferred embodiment; Figure 10 A three-dimensional structural diagram of the third loading station in a preferred embodiment; Figure 11 A three-dimensional structural schematic diagram of a preferred embodiment of the spring feeding assembly; Figure 12 A three-dimensional structural schematic diagram of a spring seat feeding assembly according to a preferred embodiment; Figure 13 A three-dimensional structural schematic diagram of the first detection station in a preferred embodiment; Figure 14 A three-dimensional structural schematic diagram of a preferred embodiment of a clamping auxiliary component; Figure 15 This is a three-dimensional structural diagram of the fourth loading station in a preferred embodiment; Figure 16 A three-dimensional structural schematic diagram of a feeding assembly according to a preferred embodiment; Figure 17 A three-dimensional structural schematic diagram of the push-in component according to a preferred embodiment; Figure 18 for Figure 17 A magnified schematic diagram of the local structure at point A; Figure label: 1. Machine tool; 2. First loading station; 21. First palletizing and sorting machine; 22. First robotic arm; 23. Inner diameter detection assembly; 231. First bearing platform; 232. First fixture; 233. Pneumatic measuring instrument; 234. First lifting cylinder; 235. First pressure plate; 236. First transverse cylinder; 3. Second loading station; 31. Second palletizing and sorting machine; 32. Second robotic arm; 33. Outer diameter detection assembly; 331. Second bearing platform; 332. Circular probe; 333. Downward pressure rod; 334. Second lifting cylinder; 4. Third feeding station; 41. Spring feeding assembly; 411. First vibratory feeder; 412. First support; 413. First distribution plate; 414. Second rotary cylinder; 415. Discharge pipe; 42. Spring seat feeding assembly; 421. Second vibratory feeder; 422. Straight material channel; 423. Vibration motor; 424. Second support; 425. Second distribution plate; 426. Third rotary cylinder; 43. First handling assembly; 431. Discharge sleeve; 432. Second pneumatic gripper; 433. First lateral movement component; 434. First lifting component; 5. First inspection station; 51. Third bearing platform; 511. Second fixture; 52. Pressing assembly; 521. Voice coil motor; 522. Second transverse movement component; 523. Sleeve pressure head; 524. Fourth lifting cylinder; 525. Pressure sensor; 53. Height difference measuring instrument; 54. Clamping auxiliary assembly; 541. Fifth lifting cylinder; 542. Clamping component; 5421. L-shaped connecting plate; 5422. First connecting rod; 5423. Second connecting rod; 5424. Third connecting rod; 5425. Connecting pressure rod; 6. Fourth loading station; 61. Feeding assembly; 611. Rotary disc; 612. Magazine-type hopper; 6121. Hopper section; 6122. Distributor section; 6123. Discharge channel; 613. Insert plate; 6131. ​​Receiving groove; 614. Third transverse cylinder; 62. Push-in assembly; 621. Mounting plate; 6211. Push-in channel; 6212. Separation hole; 6213. Gasket mounting groove; 622. Push-in component; 6221. Push plate; 6222. Push cylinder; 623. Sixth lifting cylinder; 63. Third handling assembly; 7. Material unloading station; 8. Conveyor line; 81. First streamline; 82. Second streamline; 83. Reversing assembly; 84. Positioning assembly; 85. Tilting assembly; 851. Third lifting cylinder; 852. First rotary cylinder; 853. First pneumatic gripper; 8531. First clamping part; 8532. Second clamping part; 9. Material-carrying jig; 91. Jig base plate; 92. Jig body; 921. First receiving part; 922. Second receiving part; 923. First clamping clearance part; 924. Second clamping clearance part; 100. Intake valve; 110. Valve seat; 120. Valve stem; 130. Spring; 140. Spring seat; 150. Gasket. Detailed Implementation

[0017] The technical solution protected by this invention will be described in detail below with reference to the accompanying drawings.

[0018] like Figure 1 As shown, an intake valve for an engine pump body includes a valve seat 110, a valve stem 120, a spring 130, a spring seat 140, and a gasket 150. The valve seat 110 has a through-hole at its center. The valve stem 120 includes a main body, one end of which has an abutment portion, and the other end has a groove. The main body of the valve stem 120 passes through the central hole of the valve seat 110, and its abutment portion abuts against one end face of the valve seat 110. The spring 130 is sleeved on the main body of the valve stem 120, and the spring seat 140 is sleeved on the end of the valve stem main body away from the abutment portion. The gasket 150 is engaged in the groove, restricting the spring seat 140 to the main body. Both ends of the spring 130 abut against the valve seat 110 and the spring seat 140, respectively.

[0019] like Figure 1-2 As shown, this application proposes an assembly device for feeding and assembling components of the aforementioned intake valve, and for inspecting some components to ensure that the assembled product meets quality requirements. This application includes a machine base 1, a conveyor line 8 mounted on the machine base 1, and a conveyor line 8 for cyclically conveying a material-carrying fixture 9. Along the conveyor line 8 are sequentially arranged a first feeding station 2, a second feeding station 3, a third feeding station 4, a first inspection station 5, a fourth feeding station 6, and an unloading station 7. The first loading station 2 is used to load valve seat 110 and detect the inner diameter of the center hole of valve seat 110. The second loading station 3 is used to load valve stem 120 and detect the outer diameter of the main body of valve stem 120. The third loading station 4 is used to load spring 130 and spring seat 140. The first detection station 5 is used to detect the deformation of spring 130 under constant force. The fourth loading station 6 selects a shim 150 of appropriate thickness for loading according to the deformation of spring 130. The unloading station 7 is used to unload the assembled product.

[0020] like Figure 1-3As shown, in this embodiment, the conveyor line 8 includes a first streamline 81 and a second streamline 82 arranged parallel to each other and with opposite transmission directions, and a reversing assembly 83 connecting the two ends of the first streamline 81 and the second streamline 82 along the transmission direction. One set of reversing assemblies 83 connects the output end of the first streamline 81 to the input end of the second streamline 82, and another set of reversing assemblies 83 connects the output end of the second streamline 82 to the input end of the first streamline 81, thereby forming a loop conveyor line for conveying the material jig 9. This enables the material jig 9 to be recycled and reused, effectively reducing costs. The specific structure of the conveyor line includes, but is not limited to, the above structure, which is prior art and will not be described in detail here.

[0021] like Figure 1-3 As shown, preferably, in this application, in order to ensure the stability of the material carrier fixture 9, a positioning component 84 is provided at each loading, inspection, and unloading station. The positioning component 84 includes a positioning cylinder, which is located on one side of the conveyor line. The output end of the positioning cylinder faces upward and is connected to a positioning pin. The bottom of the material carrier fixture 9 is provided with a positioning hole. The positioning cylinder drives the positioning pin to be inserted into the positioning hole, thereby restricting the movement of the material carrier fixture 9 and preventing the material carrier fixture 9 from moving during the loading and assembly process, which would affect the assembly of the product.

[0022] like Figure 4As shown, in this application, the material-carrying fixture 9 includes a fixture base plate 91 connected to the conveyor line 8 and a fixture body 92 disposed on the fixture base plate 91. The fixture body 92 is used to carry products at different assembly stages. The fixture body 92 has a receiving groove, which includes a first receiving portion 921 and a second receiving portion 922 from top to bottom. The first receiving portion 921 is used to receive a valve seat, and its inner diameter is larger than the inner diameter of the second receiving portion 922. The second receiving portion 922 is used to receive a valve stem, and its inner diameter is slightly larger than the outer diameter of the main body of the valve stem and smaller than the diameter of the abutment portion of the valve stem, so that the abutment portion of the valve stem abuts against the upper end of the second receiving portion 922 and is placed inside the first receiving portion 921. The receiving slot can accommodate products at different assembly stages and in different placement states. Specifically: at the first processing station, the valve seat is placed in the first receiving part 921; at the second processing station, the valve stem has been assembled, the main body of the valve stem passes through the central hole of the valve seat, and the end of the main body with the slot is placed in the second receiving part 922; at the third processing station, the valve stem and valve body are rotated 180°, the abutting part of the valve stem abuts against the upper end of the second receiving part 922 and is placed in the first receiving part 921, and the end of the valve stem with the slot is placed upwards, which facilitates the subsequent assembly of the spring, spring seat and gasket. Clamping channels are provided on both sides of the receiving groove. The clamping channels include a first clamping clearance part 923 and a second clamping clearance part 924 arranged in steps from top to bottom. The width of the first clamping clearance part 923 is greater than the width of the second clamping clearance part 924. The first clamping clearance part 923 is connected to the first receiving part 921, and the second clamping clearance part 924 is connected to the second receiving part 922. This enables the simultaneous clamping of parts in different processing and assembly states during the assembly process.

[0023] like Figure 3-5As shown, a flipping assembly 85 is provided on the side of conveyor line 8, between the second loading station 3 and the third loading station 4, for flipping the valve seat and valve stem assembled in the loading fixture 9 by 180°, so that the main body of the valve stem is placed upwards, so as to facilitate the subsequent installation of the spring, spring seat and gasket. The flipping assembly 85 includes a third lifting cylinder 851, the output end of the third lifting cylinder 851 is upward and connected to a first rotary cylinder 852, the output end of the first rotary cylinder 852 is facing the conveyor line side and connected to a first pneumatic gripper 853. The first pneumatic gripper 853 has a gripping arm that is adaptively configured according to the structure of the material carrier jig 9 and the assembly state of the product: a first gripping part 8531 and a second gripping part 8532. The gripping ends of the first gripping part 8531 and the second gripping part 8532 are stepped. The end of the second gripping part 8532 protrudes from the first gripping part 8531. The second gripping part 8532 extends into the second gripping clearance part 924, approaches each other and grips the valve stem body. The first gripping part 8531 extends into the first gripping clearance part 923, approaches each other and grips the valve seat, so as to realize the simultaneous gripping of the unlocked valve seat and valve stem for flipping and transport.

[0024] like Figure 2 and 6 As shown, the first loading station 2 includes: a first palletizer / distributor 21 for palletizing and distributing the first material tray; several valve seats are arranged and stacked in the first material tray; an inner diameter detection component 23 and a first robotic arm 22 for handling the valve seats are provided on the side of the first palletizer / distributor 21 near the conveyor line 8. The first robotic arm 22 is used to remove the valve seats from the first palletizer / distributor 21 and transport them to the inner diameter detection component 23, and then transport the qualified valve seats to the conveyor line 8 or transport the unqualified valve seats to the defective product collection area, which is located on one side of the conveyor line 8. Qualified valve seats are directly placed in the first receiving part of the loading fixture 9 and flow to the second loading station with the conveyor line.

[0025] like Figure 6-7As shown, the inner diameter detection assembly 23 includes: a first support platform 231, a first fixture 232 on the first support platform 231 for limiting the horizontal movement of the valve seat, a detection hole at the center hole position of the valve seat corresponding to the first fixture 232, a pneumatic measuring instrument 233 below the first support platform 231, and a first lifting cylinder 234 for driving the pneumatic measuring instrument 233 to rise and fall. The first lifting cylinder 234 drives the pneumatic measuring instrument 233 to rise, so that the probe of the pneumatic measuring instrument 233 is inserted into the center hole of the valve seat from the detection hole to measure the inner diameter of the valve seat. Preferably, a first pressure plate 235 is provided on the first support platform 231 on the side corresponding to the first fixture 232, and a first transverse cylinder 236 drives the first pressure plate 235 to move closer to and further away from the first fixture 232. The first transverse cylinder 236 drives the first pressure plate 235 to press onto the first fixture 232 to limit the vertical movement of the valve seat within the first fixture 232.

[0026] like Figure 2 and 8 As shown, the second feeding station 3 includes a second palletizer / distributor 31 for palletizing and distributing materials from the second pallet. Several valve stems are arranged and stacked within the second pallet. An outer diameter detection component 33 and a second robotic arm 32 for handling the valve stems are located near the first side of the conveyor line 8 on the second palletizer / distributor 31. The second robotic arm 32 is used to remove the valve stems from the second palletizer / distributor 31 and transport them to the outer diameter detection component 33. Then, valve stems that have passed the inspection are transported to the conveyor line 8, or valve stems that fail the inspection are transported to the defective product collection area. The end of the main body of a valve stem that has passed the inspection passes through the central hole of the valve seat in the loading fixture 9 and is inserted into the second receiving part 922. The abutment portion of the valve stem abuts against the upper end face of the valve seat.

[0027] like Figure 8-9 As shown, the outer diameter detection assembly 33 includes: a second support platform 331, on which a ring probe 332 is mounted. The abutment portion of the valve stem abuts against the upper end of the ring probe 332, and its main body is placed inside the ring probe 332 for outer diameter measurement. Preferably, a pressing rod 333 and a second lifting cylinder 334 are provided above the ring probe 332 to drive the pressing rod 333 to rise and fall. The second lifting cylinder 334 drives the pressing rod 333 to press against the abutment portion of the valve stem, thereby limiting the vertical movement of the valve stem during the measurement process.

[0028] In this embodiment, the first palletizer and the second palletizer and the second palletizer and the second palletizer and the second palletizer and the third palletizer have the same structure and are existing technologies, so they will not be described in detail here.

[0029] like Figure 10-12As shown, the third loading station 4 includes: a spring loading assembly 41 for discharging and separating springs, a spring seat loading assembly 42 for discharging spring seats, and a first conveying assembly 43 for transferring and assembling springs and spring seats onto valve stems. The first conveying assembly 43 is located between the spring seat loading assembly 42 and the conveyor line 8, and includes a discharge sleeve 431 for assembling springs, a second pneumatic gripper 432 for clamping spring seats, a first traversing member 433 for driving the discharge sleeve 431 and the second pneumatic gripper 432 to move synchronously, and a first lifting member 434.

[0030] like Figure 10-12 As shown, the spring feeding assembly 41 includes: a first vibratory plate 411, the discharge end of the first vibratory plate 411 is provided with a first material distribution component, the first material distribution component includes: a first support 412, a first material distribution plate 413 disposed on the first support 412, a second rotary cylinder 414 driving the first material distribution plate 413 to rotate in the vertical direction, a receiving groove is provided on one side of the first material distribution plate 413, the first support 412 has a discharge hole corresponding to the lower part of the first material distribution plate 413, a discharge pipe 415 is connected in the discharge hole, and the end of the discharge pipe 415 away from the discharge hole is connected to the discharge sleeve 431. The first distribution plate 413 rotates, so that the receiving groove corresponds to the discharge end of the first vibrating plate 411. The spring vibrates and falls into the receiving groove. The second rotary cylinder 414 drives the first distribution plate 413 to rotate, so that the receiving groove rotates to the position above the discharge hole of the first bracket 412. The spring falls from the receiving groove into the discharge hole and is transmitted to the discharge sleeve 431 through the discharge pipe 415. The discharge sleeve 431 is placed above the valve stem, and the spring is directly sleeved on the valve stem, completing the spring assembly.

[0031] like Figure 10-12 As shown, the spring seat feeding assembly 42 includes: a second vibrating plate 421, a straight material channel 422 connected to the second vibrating plate 421, a matching vibrating motor 423 disposed below the straight material channel 422, and a second material distribution component disposed at the discharge end of the straight material channel 422. The second material distribution component includes: a second support 424, a second material distribution plate 425 disposed on the second support 424, and a third rotary cylinder 426 driving the second material distribution plate 425 to rotate horizontally. Temporary storage slots for receiving spring seats are opened at opposite ends along the diameter of the second material distribution plate 425. One side of the temporary storage slot of the second material distribution plate 425 is located at the discharge end of the straight material channel 422 to receive the spring seats vibrating out of the straight material channel 422. The action of the third rotary cylinder 426 drives the second material distribution plate 425 to rotate, causing the other side of the temporary storage slot to rotate to the discharge end of the straight material channel 422 to receive the next spring seat. The second pneumatic gripper 432 picks up the spring seat in the temporary storage slot on the side of the second material distribution plate 425 away from the discharge end of the straight material channel 422, and transfers and places it on the valve stem where the spring assembly has been completed, thereby completing the installation of the spring seat.

[0032] like Figure 13-14 As shown, the first inspection station 5 is used to apply a constant force to the assembled spring and detect the deformation of the spring under the action of the constant force. It includes: a third support platform 51 for placing the product, a pressure application component 52 for applying pressure to the spring, a height difference measuring instrument 53 for detecting the deformation of the spring, and a second transport component (not shown) for transporting the product. The third support platform 51 has a second fixture 511 for limiting the horizontal movement of the product. The second transport component transports the product to be tested from the loading fixture on the conveyor line 8 to the second fixture 511, and then moves the product that has completed the inspection back from the second fixture 511 to the conveyor line 8.

[0033] like Figure 13-14 As shown, the pressure application assembly 52 includes: a voice coil motor 521 that outputs pressure, and a second lateral movement member 522 that drives the voice coil motor 521 to move closer to and further away from the second fixture 511. The output end of the voice coil motor 521 faces downward and is equipped with a sleeve pressure head 523. The sleeve pressure head 523 is hollow and can be pressed onto the spring seat, avoiding the valve stem at the center. Preferably, a pressure sensor 525 is provided below the voice coil motor 521, and a fourth lifting cylinder 524 is provided below the pressure sensor 525. Before the voice coil motor 521 applies pressure to the spring, it pre-acts on the pressure sensor 525 to detect the pressure value, ensuring that the pressure value acting on the spring is accurate.

[0034] like Figure 13-14 As shown, the specific detection process is as follows: The second transverse component 522 moves the voice coil motor 521 above the second fixture 511. The voice coil motor 521 applies a sufficiently large pressure P1, and the sleeve pressure head 523 presses the spring seat downward. The spring is compressed, causing the spring seat to move downward to below the slot. The height difference measuring instruments 53 on both sides emit lasers to detect the height H1 between the bottom of the slot and the upper end face of the valve seat. The voice coil motor 521 retracts, and the rated pressure P2 is set. It is first applied to the pressure sensor 525 to verify whether the output pressure value is accurate. Then, the second transverse component 522 drives the voice coil motor 521 to move above the second fixture 511 and applies a constant pressure P2 to the spring seat. The height difference measuring instruments 53 on both sides emit lasers to detect the height H2 between the upper end of the spring seat and the upper end face of the valve seat under the action of pressure P2. The height difference D between H1 and H2 is calculated, and the required thickness of the gasket is determined based on the height difference D.

[0035] like Figure 13-14As shown, preferably, a clamping auxiliary assembly 54 is also provided on one side of the third support platform 51 to limit the vertical displacement of the valve seat and valve stem. The clamping auxiliary assembly 54 includes a clamping member 542 and a fifth lifting cylinder 541 that drives the clamping member 542 to complete the downward pressing action. The clamping member 542 is pressed onto the valve seat to ensure that the position of the valve seat remains unchanged during the height difference detection process. In this embodiment, the clamping member 542 can adopt a linkage structure, specifically including: an L-shaped linkage plate 5421, a first linkage 5422, a second linkage 5423, a third linkage 5424, and a linkage pressure rod 5425. The bent portion of the L-shaped linkage plate 5421 is connected to the push rod end of the fifth lifting cylinder 541. One end of the plate is movably hinged to one end of the first linkage 5422, and the bent portion is movably hinged to one end of the second linkage 5423. The other end of the first linkage 5422 is movably hinged to one end of the linkage pressure rod 5425. The other end of the second linkage 5423 is movably hinged to the middle section of the third linkage 5424. One end of the third linkage 5424 is movably hinged to the middle of the linkage pressure rod 5425, and the other end is movably hinged to the fifth lifting cylinder 541.

[0036] like Figure 15-18 As shown, the fourth loading station 6 includes: a feeding assembly 61 for providing gaskets of different thicknesses, a pushing assembly 62 for assembling the gaskets onto the valve stem, and a third conveying assembly 63 for conveying the gaskets from the feeding assembly 61 to the pushing assembly 62.

[0037] like Figure 15-18As shown, the feeding assembly includes a rotary disk 611 and a pad transfer component disposed on one side of the rotary disk 611. A rotary motor and a reducer are disposed below the rotary disk 611. Several clip-type hoppers 612 are evenly spaced along the circumference of the rotary disk 611. Each clip-type hopper 612 contains pads of different thicknesses. Each clip-type hopper 612 includes a hopper section 6121 and a distribution section 6122 disposed at the bottom of the hopper section 6121. The hopper section 6121 has a accommodating space for stacking pads. The distribution section 6122 includes a base plate with a horizontally extending discharge channel 6123. The discharge channel 6123 is connected to the accommodating space. A baffle plate (not shown) is movably disposed within the discharge channel 6123. A spring connects the end of the baffle plate away from the pad transfer component to the base plate. The gasket transfer component includes: an insert plate 613 for receiving gaskets, and a third transverse cylinder 614 that drives the insert plate 613 to be inserted into the discharge channel 6123. A receiving groove 6131 is provided on one end of the insert plate 613 near the rotating disk 611. When the baffle plate is not subjected to external pushing force, it is positioned below the receiving space, preventing the gasket from falling directly into the discharge channel 6123. The third transverse cylinder 614 drives the insert plate 613 to insert into the discharge channel 6123. The baffle plate is pushed by the insert plate 613, and the spring compresses it. The receiving groove 6131 of the insert plate 613 is positioned below the receiving space to receive the gasket. The third transverse cylinder 614 drives the insert plate 613 to retract. After the baffle plate is no longer pushed by the insert plate 613, it returns to the bottom of the receiving space under the spring force, preventing the gasket from continuing to discharge. Preferably, the depth of the receiving groove 6131 is not less than the thickness of a single gasket and less than the thickness of two gaskets, to ensure that only a single gasket is accommodated in the receiving groove 6131. ​​Preferably, the receiving groove 6131 has a vacuum suction hole for adsorbing the gasket into the groove.

[0038] like Figure 15-18As shown, the push-in assembly 62 includes: a mounting plate 621, a push-in member 622 disposed on the mounting plate 621, and a sixth lifting cylinder 623 for driving the mounting plate 621 to rise and fall. The upper end face of the mounting plate 621 has a horizontally extending push-in channel 6211. The push-in member 622 includes a pusher plate 6221 and a pusher cylinder 6222 for driving the pusher plate 6221 to move along the push-in channel 6211. The push-in channel 6211 has a vertically penetrating separation hole 6212. The side of the separation hole 6212 near the pusher plate 6221 has a gasket mounting groove 6213. Preferably, the inner diameter of the separation hole 6212 is larger than the gasket diameter and smaller than the upper diameter of the spring seat, to ensure that the mounting plate 621 can press downwards against the spring seat, and that after the gasket assembly is completed, the mounting plate 621 can detach from the valve stem. The process is as follows: the third conveying component picks up and transports the gasket in the receiving groove 6131 and places it in the gasket placement groove 6213. The sixth lifting cylinder 623 drives the placement plate 621 to descend. The placement plate 621 presses down the spring seat. The end of the valve stem body with the slot passes through the separation hole 6212 until the slot is placed in the push-in channel 6211. The push cylinder 6222 moves and drives the push plate 6221 to move towards the separation hole 6212, pushing the gasket to be locked in the slot.

[0039] The unloading station 7 includes: a vision inspection camera (not shown) for photographing and inspecting the product, and a third robotic arm (not shown) for gripping and unloading the product from the material handling fixture. The vision inspection camera is used to photograph and inspect the product to ensure its assembly integrity and whether it is properly assembled, and then the third robotic arm grips and unloads the product.

[0040] In this embodiment, the first lateral moving component, the second lateral moving component, the first lifting component, etc., can be driven by cylinders, guide rails, sliders, lead screws, and motors, and there are no specific limitations. The first handling assembly, the second handling assembly, the third handling assembly, etc., can be composed of various structural combinations such as robotic arms, lateral moving components, and lifting components combined with pneumatic grippers or suction heads, and there are no limitations.

[0041] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural or procedural transformations made based on the content of the present invention's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. An assembly device for an intake valve for an engine pump body, characterized in that, Mainly includes: The machine platform and a conveyor line mounted on the machine platform, the conveyor line being used for cyclically conveying the material-carrying fixture, are sequentially arranged along the conveyor line as follows: a first loading station, a second loading station, a third loading station, a first inspection station, a fourth loading station, and an unloading station. The first loading station is used to load valve seats and detect the inner diameter of the center hole of the valve seats; the second loading station is used to load valve stems and detect the outer diameter of the main body of the valve stems; the third loading station is used to load springs and spring seats; the first detection station is used to detect the deformation of the springs under constant force; the fourth loading station selects a shim of appropriate thickness for loading according to the deformation of the springs; and the unloading station is used to unload the assembled products. The first inspection station includes: a third bearing platform, a pressure application component that applies constant force to the spring, a height difference measuring instrument for detecting the spring deformation, a second handling component for handling products, and a second fixture for placing products on the third bearing platform, with the height difference measuring instrument disposed on both sides of the second fixture; The pressure application component includes: a voice coil motor that outputs pressure, and a second transverse component that drives the voice coil motor to move closer to and further away from the second fixture. The output end of the voice coil motor is downward and is equipped with a sleeve pressure head. The sleeve pressure head is hollow so as to avoid the valve stem when it is pressed onto the spring seat. The fourth feeding station includes: a feeding assembly for providing gaskets of different thicknesses, a pushing assembly for assembling the gaskets onto the valve stem, and a third conveying assembly for transporting the gaskets from the feeding assembly to the pushing assembly. The pushing assembly includes: a mounting plate, a pushing component disposed on the mounting plate, and a sixth lifting cylinder for driving the mounting plate to rise and fall. The upper end face of the mounting plate has a horizontally extending pushing channel. The pushing component includes a pushing plate and a pushing cylinder for driving the pushing plate to move along the pushing channel. The pushing channel has a vertically penetrating separation hole. The side of the separation hole near the pushing plate has a gasket mounting groove. The mounting plate is used to press down the spring seat. One end of the valve stem body with a slot passes through the separation hole.

2. The assembly equipment for the intake valve of the engine pump body according to claim 1, characterized in that, The first feeding station includes: a first palletizing and sorting machine for stacking and sorting the first material tray; an inner diameter detection component for detecting the inner diameter of the center hole of the valve seat; a first robotic arm for transporting the valve seat; and several valve seats are arranged and stacked in the first material tray. The inner diameter detection component includes: a first support platform, a first fixture for placing a valve seat on the first support platform, a detection hole being opened at the bottom of the first fixture corresponding to the position of the center hole of the valve seat, and a liftable pneumatic measuring instrument being arranged below the first support platform, the probe of the pneumatic measuring instrument being able to pass through the detection hole and be inserted into the center hole of the valve seat.

3. The assembly equipment for the intake valve of the engine pump body according to claim 1, characterized in that, The second feeding station includes: a second palletizer and feeder for stacking and distributing materials in the second material tray; an outer diameter detection component for detecting the outer diameter of the valve stem body; a second robotic arm for transporting valve stems; and several valve stems are arranged and stacked in the second material tray. The outer diameter detection assembly includes: a second support platform, on which a ring probe is mounted, and the valve stem body can be inserted into the ring probe.

4. The assembly equipment for the intake valve of the engine pump body according to claim 1, characterized in that, The third loading station includes: a spring loading assembly for discharging and distributing springs, a spring seat loading assembly for discharging and distributing spring seats, and a first conveying assembly for transferring and assembling springs and spring seats onto the valve stem. The first conveying assembly is disposed between the spring seat feeding assembly and the conveyor line, and includes: a discharge sleeve for assembling springs, a second pneumatic gripper for clamping spring seats, a first traversing component and a first lifting component for driving the discharge sleeve and the second pneumatic gripper to move synchronously.

5. The assembly equipment for the intake valve of the engine pump body according to claim 4, characterized in that, The spring feeding assembly includes: a first vibratory plate, wherein the discharge end of the first vibratory plate is equipped with a first material distribution component; The first material distribution component includes: a first support, a first material distribution plate disposed on the first support, and a second rotary cylinder that drives the first material distribution plate to rotate in a vertical direction. A receiving groove is provided on one side of the first material distribution plate. The first support has a discharge hole corresponding to the lower part of the first material distribution plate. A discharge pipe is connected in the discharge hole. The end of the discharge pipe away from the discharge hole is connected to the discharge sleeve. The receiving groove can be connected to the discharge end of the first vibrating plate for spring receiving. The receiving groove can be connected to the discharge hole for spring distributing.

6. The assembly equipment for the intake valve of the engine pump body according to claim 4, characterized in that, The spring seat feeding assembly includes: a second vibrating plate, a straight material channel connected to the second vibrating plate, a matching vibrating motor provided below the straight material channel, and a second material distribution component provided at the discharge end of the straight material channel; The second material distribution component includes: a second support, a second material distribution plate disposed on the second support, and a third rotary cylinder for driving the second material distribution plate to rotate in the horizontal direction. The second material distribution plate has temporary storage grooves at opposite ends along the diameter direction. The temporary storage grooves can be connected to the discharge end of the straight material channel for spring seat material receiving.

7. The assembly equipment for the intake valve of the engine pump body according to claim 1, characterized in that, The feeding assembly includes: a rotating disk and a pad transfer component disposed on one side of the rotating disk. A rotary motor and a reducer are disposed below the rotating disk. Several clip-type hoppers are evenly spaced along the circumference of the rotating disk. Each clip-type hopper contains pads of different thicknesses. Each clip-type hopper includes a hopper section and a distribution section disposed at the bottom of the hopper section. The hopper section has a accommodating space for stacking pads. The distribution section includes a bottom plate. A horizontally extending discharge channel is opened on the bottom plate. The discharge channel is connected to the accommodating space. A baffle plate is movably disposed in the discharge channel. A spring is connected between the end of the baffle plate away from the pad transfer component and the bottom plate. The gasket transfer component includes: an insert plate for receiving the gasket, and a third transverse cylinder for driving the insert plate to be inserted into the discharge channel. The insert plate has a receiving groove on one end near the rotary disk, and the receiving groove has a vacuum suction hole.

8. The assembly equipment for the intake valve of the engine pump body according to claim 1, characterized in that, The unloading station includes: a visual inspection camera for photographing and inspecting the product, and a third robotic arm for gripping and unloading the product from the loading fixture.

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