An electronic throttle valve assembly

Abstract

The application discloses an electronic throttle valve assembling equipment, characterized by comprising a conveying device which sequentially conveys valve bodies to each assembling station; further comprising a valve plate assembly assembling device, a motor assembly assembling device, a positioning magnetic assembly assembling device and an upper cover assembling device which are sequentially arranged at each assembling station; the valve plate assembly assembling device assembles a valve plate assembly on the valve body; the motor assembly assembling device assembles a motor assembly on the valve body; the positioning magnetic assembly assembling device assembles a positioning magnetic assembly in the valve body; and the upper cover assembling device assembles an upper cover on the valve body. The application improves the assembling efficiency, the qualified rate and the application range, and reduces the labor intensity of the operator.

Description

Technical Field

[0001] This invention relates to the field of automotive parts manufacturing and processing, particularly to an electronic throttle assembly equipment, and especially to a flexible, universal electronic throttle assembly line. Background Technology

[0002] The throttle body is a controllable valve that regulates the amount of air entering the engine. After entering the intake manifold, the air mixes with gasoline to form a combustible mixture, which then burns to produce power. It connects to the air filter above and the engine block below, and is often referred to as the "throat" of a car engine. The responsiveness of a car's acceleration is greatly influenced by the cleanliness of the throttle body; a clean throttle body can reduce fuel consumption and make the engine more agile and powerful. There are two types of throttle bodies: traditional cable-operated and electronic. Traditional engines use a cable (soft steel wire) or lever to operate the throttle body, with one end connected to the accelerator pedal and the other end connected to the throttle linkage. Electronic throttle bodies primarily use a throttle position sensor to control the throttle opening angle based on the engine's energy requirements, thereby regulating the amount of air intake. Most modern gasoline cars use electronic throttle bodies.

[0003] Traditional product production lines mainly adopt a single-station assembly structure (each component is assembled independently), resulting in low assembly efficiency. At the same time, traditional production models are mostly manual, which can lead to individual products being missed or repeated in mass production. Moreover, manual operation can affect product technical specifications, resulting in inconsistent product quality and a large number of scrap and defective products. Summary of the Invention

[0004] The purpose of this invention is to provide an electronic throttle assembly device. By using this structure, the assembly efficiency and pass rate are effectively improved, and it is also applicable to the assembly of different models of products, thus expanding its scope of application.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is: an electronic throttle body assembly device, including a conveying device that sequentially conveys the valve body to each assembly station; and further including components sequentially arranged at each assembly station: A valve plate assembly assembly device assembles a valve plate assembly onto a valve body; A motor assembly device for assembling a motor assembly onto the valve body; A positioning magnetic component assembly device, which assembles the positioning magnetic component into the valve body; A cover assembly device that assembles the cover onto the valve body.

[0006] In the above technical solution, the valve plate assembly device includes a bearing assembly mechanism and a valve plate assembly mechanism. The bearing assembly mechanism installs the bearing and the fixed shaft onto the valve body, and the valve plate assembly mechanism assembles the valve plate and the rotating shaft onto the valve body.

[0007] In the above technical solution, the bearing assembly mechanism includes a first valve body positioning component, a fixed-axis feeding mechanism, a fixed-axis pressing mechanism, two sets of bearing feeding mechanisms, and two sets of bearing pressing mechanisms. The two sets of bearing pressing mechanisms are respectively arranged at both ends of the first valve body positioning component. The discharge port of each bearing feeding mechanism is directly opposite to each set of bearing pressing mechanisms. The bearing provided by the bearing feeding mechanism is pressed onto the valve body by the corresponding bearing pressing mechanism. The fixed-axis pressing mechanism is located beside the first valve body positioning component, and the discharge port of the fixed-axis feeding mechanism is located directly opposite the fixed-axis pressing mechanism. The fixed shaft provided by the fixed-axis feeding mechanism is pressed onto the valve body by the fixed-axis pressing mechanism.

[0008] In the above technical solution, the valve plate assembly device further includes a retaining ring mounting mechanism, which mounts the retaining ring on the rotating shaft.

[0009] In the above technical solution, the valve plate assembly mechanism includes a valve plate assembly bracket, a second valve body positioning component and a third valve body positioning component disposed on the valve plate assembly bracket, a rotating shaft pressing mechanism is provided on one side of the second valve body positioning component, the rotating shaft pressing mechanism presses the rotating shaft onto the valve body and the valve plate, a valve plate locking screw mechanism is provided directly above the second valve body positioning component, the valve plate locking screw mechanism locks the rotating shaft and the valve plate together with fasteners; A third valve body pressing mechanism is provided directly above the third valve body positioning component. The third valve body pressing mechanism presses the valve body onto the third valve body positioning component. A shaft end cap pressing mechanism is provided on the side of the third valve body positioning component. The shaft end cap pressing mechanism presses the shaft end cap onto the rotating shaft at the end of the retaining ring away from the valve plate assembly.

[0010] In the above technical solution, a gap adjustment positioning mechanism is also provided on the valve plate assembly bracket next to the second valve body positioning component. The gap adjustment positioning mechanism and the rotating shaft pressing mechanism are respectively arranged on both sides of the second valve body positioning component. The gap adjustment and positioning mechanism includes a gap adjustment and positioning component, a gap adjustment and positioning component drive unit, and a displacement sensor. The gap adjustment and positioning component drive unit is configured to drive the gap adjustment and positioning component and the displacement sensor to move closer to or further away from the rotating shaft pressing mechanism.

[0011] In the above technical solution, the motor assembly assembly device includes a motor assembly placement mechanism and a motor assembly locking mechanism. The motor assembly placement mechanism is used to place the motor assembly into the valve body, and the motor assembly locking mechanism is used to lock the motor assembly into the valve body.

[0012] In the above technical solution, the motor assembly placement mechanism includes a motor assembly gripper and a motor assembly gripper drive unit, wherein the motor assembly gripper drive unit drives the motor assembly gripper to move along the X-axis and Y-axis; The motor assembly locking mechanism includes a motor locking mechanism and a sector gear welding mechanism. The motor locking mechanism is located on the side of the motor assembly gripper, and the motor assembly gripper drive unit drives the motor locking mechanism to move along the X-axis and Y-axis. The motor locking mechanism is used to lock the motor in the motor assembly to the valve body. The sector gear welding mechanism includes a welding machine, a sector gear angle adjustment mechanism, and a valve plate angle adjustment mechanism. The valve plate angle adjustment mechanism is used to adjust the angle of the valve plate on the valve plate assembly installed on the valve body. The sector gear angle adjustment mechanism is used to adjust the angle of the sector gear. The welding machine welds the sector gear in the motor assembly to the rotating shaft in the valve plate assembly.

[0013] In the above technical solution, the positioning magnetic component assembly device includes a positioning magnetic component placement mechanism and a positioning magnetic component fixing mechanism. The positioning magnetic component placement mechanism includes a positioning magnetic component feeding part and a positioning magnetic component gripping part. The positioning magnetic component gripping part grips and places the positioning magnetic component provided by the positioning magnetic component feeding part onto the valve body. The positioning magnetic component fixing mechanism includes a positioning magnetic component limiting part and a positioning magnetic component hot riveting mechanism. The positioning magnetic component limiting part limits the valve body and / or the positioning magnetic component, and the positioning magnetic component hot riveting mechanism hot rivets the positioning magnetic component to the valve body.

[0014] In the above technical solution, the upper cover assembly device includes an upper cover pressing mechanism, an upper cover pressing detection mechanism and / or an upper cover locking mechanism. The upper cover pressing mechanism presses the upper cover tightly onto the valve body. The upper cover pressing detection mechanism is used to detect whether the upper cover and the valve body are properly fastened. The upper cover locking mechanism locks the upper cover to the valve body using fasteners.

[0015] In the above technical solution, the conveying device includes a pallet, a pallet driving unit, and a pallet lifting unit. There are multiple pallets, and the pallet driving unit drives the multiple pallets to move, so that each pallet moves to an assembly station. There are multiple pallet lifting parts, and each of the multiple assembly stations is provided with a pallet lifting part below it. The pallet lifting part will lift the pallet at the corresponding assembly station and disengage it from the pallet drive part.

[0016] The above technical solution also includes an airtightness testing device, which is at least one set. The airtightness testing device includes a lower mold of an airtightness testing box, an upper mold of an airtightness testing box disposed above the lower mold of the airtightness testing box, and an upper mold driving part of the airtightness testing box. The upper mold driving part of the airtightness testing box is configured to drive the upper mold of the airtightness testing box to move closer to or away from the lower mold of the airtightness testing box. It also includes a lower mold driving unit for the airtightness test box, which is configured to drive the lower mold of the airtightness test box to move along a direction perpendicular to the upper mold of the airtightness test box, so that the lower mold of the airtightness test box moves directly below the upper mold of the airtightness test box or moves to the side below the upper mold of the airtightness test box.

[0017] The above technical solution also includes a marking and programming device, which includes a programming fixture, a marking mechanism, and a smoke exhaust mechanism. The programming fixture is used to mark the assembled electronic throttle body, and the smoke exhaust mechanism exhausts the smoke generated during the marking process. The programming fixture is used to program the assembled electronic throttle body.

[0018] Due to the application of the above technical solution, the present invention has the following advantages compared with the prior art: 1. The assembly equipment in this invention has a high degree of automation, which effectively improves assembly efficiency and pass rate; 2. This invention is applicable to assembling different models of products, which improves the scope of application, increases the utilization rate of assembly equipment, and reduces assembly and R&D costs. Attached Figure Description

[0019] Figure 1 This is an exploded view of the electronic throttle valve in this invention; Figure 2 This is a schematic diagram of the structure in Embodiment 1 of the present invention; Figure 3 yes Figure 2 Top view; Figure 4 This is a schematic diagram of the bearing assembly mechanism in Embodiment 1 of the present invention; Figure 5 This is a schematic diagram of the valve plate assembly mechanism in Embodiment 1 of the present invention; Figure 6 This is a schematic diagram of the motor assembly placement mechanism and the motor locking mechanism in Embodiment 1 of the present invention; Figure 7 This is a schematic diagram of the sector gear welding mechanism in Embodiment 1 of the present invention; Figure 8 This is a schematic diagram of the positioning magnetic component placement mechanism in Embodiment 1 of the present invention; Figure 9 This is a schematic diagram of the positioning magnetic component fixing mechanism in Embodiment 1 of the present invention; Figure 10 This is a schematic diagram of the upper cover pressing mechanism and the upper cover pressing detection mechanism in Embodiment 1 of the present invention; Figure 11 This is a schematic diagram of the upper cover locking mechanism in Embodiment 1 of the present invention; Figure 12 This is a schematic diagram of the marking and burning device in Embodiment 1 of the present invention; Figure 13 This is a schematic diagram of the airtightness testing device in Embodiment 1 of the present invention; Figure 14 This is a schematic structural diagram of the conveying device in Embodiment 1 of the present invention.

[0020] The components are as follows: 01. Valve body; 02. Valve disc assembly; 03. Motor assembly; 04. Positioning magnet assembly; 05. Top cover; 021. Valve disc; 022. Rotating shaft; 023. Bearing; 024. Snap ring; 025. Shaft end cover; 031. Motor; 032. Fixed shaft; 033. Transition gear; 034. Sector gear; 035. Torsion spring; 1. Conveying device; 11. Pallet; 12. Pallet drive unit; 13. Pallet lifting unit; 120. Upper conveyor unit; 121. Lower conveyor unit; 122. End conveyor unit; 2. Valve plate assembly device; 21. Bearing assembly mechanism; 22. Valve plate assembly mechanism; 23. Bearing assembly workbench; 24. Snap ring installation mechanism; 25. Label printer; 210. First valve body positioning component; 211. Fixed shaft feeding mechanism; 212. Fixed shaft pressing mechanism; 213. Bearing feeding mechanism; 214. Bearing pressing mechanism; 220. Valve plate assembly bracket; 221. Second valve body positioning component; 222. Third valve body positioning component; 223. Rotary shaft pressing mechanism; 224. Valve plate screw locking mechanism; 225. Third valve body clamping mechanism; 226. Shaft end cover pressing mechanism; 227. Clearance adjustment positioning mechanism; 2271. Clearance adjustment positioning component; 2272. Clearance adjustment positioning component drive unit; 2273. Displacement sensor; 3. Motor assembly assembly device; 31. Motor assembly placement mechanism; 32. Motor locking mechanism; 33. Sector gear welding mechanism; 34. Mounting bracket; 310. Motor assembly gripper; 311. Motor assembly gripper drive unit; 330. Welding machine; 331. Sector gear angle adjustment mechanism; 332. Valve plate angle adjustment mechanism; 3310. Rotating head; 3311. Rotating head drive unit; 3312. Adjusting cylinder; 4. Positioning magnetic component assembly device; 41. Positioning magnetic component placement mechanism; 42. Positioning magnetic component fixing mechanism; 410. Positioning magnetic component feeding part; 411. Positioning magnetic component gripping part; 420. Positioning magnetic component limiting part; 421. Positioning magnetic component hot riveting mechanism; 4101. Positioning magnetic component receiving clip; 4102. Distributing cylinder; 4110. Positioning magnetic component gripping cylinder; 4111. Positioning magnetic component gripping drive cylinder; 4210. Hot press welding machine; 4211. Hot press cylinder; 4212. Air blowing head; 5. Top cover assembly device; 51. Top cover pressing mechanism; 52. Top cover pressing detection mechanism; 53. Top cover locking mechanism; 510. Top cover pressing block; 511. Top cover pressing block cylinder; 531. Automatic screw tightening gun; 532. Screw tightening gun drive unit; 6. Marking and programming device; 61. Programming fixture; 62. Marking mechanism; 63. Smoke extraction mechanism; 7. Material feeding position; 8. Air tightness testing device; 81. Lower mold of air tightness testing box; 82. Upper mold of air tightness testing box; 83. Upper mold drive unit of air tightness testing box; 84. Lower mold drive unit of air tightness testing box. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments: Example 1: See Figure 1-14 As shown, an electronic throttle body assembly device includes a conveying device 1, which sequentially conveys the valve body to each assembly station; and also includes components sequentially arranged at each assembly station: Valve plate assembly device 2, which assembles valve plate assembly 02 onto valve body 01; Motor assembly device 3, which assembles motor assembly 03 onto the valve body; Positioning magnetic component assembly device 4, which assembles positioning magnetic component 04 into valve body 01; The upper cover assembly device 5 assembles the upper cover 05 onto the valve body 01.

[0022] See Figure 1As shown, the electronic throttle valve mainly includes a valve body 01, a valve plate assembly 02 installed in the valve body 01, a motor assembly 03, a positioning magnet assembly 04, and an upper cover 05 installed on the valve body. The valve plate assembly 02 mainly includes a valve plate 021, a rotating shaft 022, a bearing 023, a retaining ring 024, and a shaft end cover 025. The valve plate 021 is rotatably installed in the air intake hole of the valve body 01 through the rotating shaft 022 (the valve plate is connected to the rotating shaft by fasteners, which are generally bolts). The two ends of the rotating shaft 022 are respectively rotatably connected to the valve body 01 at both ends of the air intake hole through two bearings 023. A retaining ring 024 and a shaft end cover 025 are respectively set at the two ends of the rotating shaft 022 to axially limit the two ends of the rotating shaft 022, preventing the rotating shaft and valve plate from moving axially relative to the valve body, thereby ensuring that the valve plate is stably located in the valve body and will not move, but can only rotate relative to the valve body through the rotating shaft. The motor assembly 03 mainly includes a motor 031, a fixed shaft 032, a transition gear 033, a sector gear 034, and a torsion spring 035. The motor 031 is installed parallel to the valve body 01 next to the rotating shaft 022. The torsion spring 035 is sleeved on the rotating shaft. The sector gear 034 is fixedly connected to one end of the rotating shaft 022. One end of the torsion spring 035 abuts against the valve body 01, and the other end abuts against the sector gear. The fixed shaft is installed on the valve body between the rotating shaft and the motor. The transition gear is rotatably installed on the fixed shaft 032. The transition gear 033 meshes with the gear on the motor 031 and the sector gear 034 respectively. The positioning magnetic assembly 04 is installed on the rotating shaft 022 next to the sector gear 034. The upper cover 05 seals the chamber on the valve body 01 where the motor assembly 03 is installed (the upper cover and the valve body are generally connected by snap-fit ​​or bolt). At the same time, it is electrically connected to the motor and the positioning magnetic assembly through connectors or pins. During operation, the motor drives the gear on its output shaft to rotate. Through the transmission of the intermediate gear, the sector gear rotates, which in turn drives the valve plate to rotate via the rotating shaft, thus realizing the operation of the electronic throttle. In the original structure, the motor assembly and the valve plate assembly were assembled manually and independently. Then, the valve plate assembly, motor assembly, positioning magnet assembly, top cover, and valve body were manually assembled separately. This method resulted in low assembly efficiency, high labor intensity for operators, and a relatively low pass rate.

[0023] In this invention, fully automated assembly can be employed, or manual assistance can be used in certain processes. Taking fully automated assembly as an example, the various components of the valve plate assembly can first be assembled onto the valve body using a valve plate assembly device. A conveying device then moves the valve body containing the valve plate assembly to the motor assembly station, where the motor assembly is assembled onto the valve body, connecting the motor assembly and the valve plate assembly. Next, a conveying device moves the valve body containing the motor assembly and valve plate assembly to the positioning magnet assembly station, where the positioning magnet is assembled and installed onto the valve body. Finally, a conveying device moves the valve body containing the motor assembly, valve plate assembly, and positioning magnet assembly to the top cover assembly station, where the top cover is assembled onto the valve body. This achieves automated assembly line assembly of the electronic throttle valve. This assembly equipment and process effectively improves assembly efficiency, reduces the labor intensity of operators, and increases the product assembly qualification rate. At the same time, it is possible to replace the corresponding assembly parts in each assembly device according to different models or flat electronic throttle valves, so that it can be used for different electronic throttle valves, thereby increasing the scope of application, reducing production costs, and also reducing research and development costs.

[0024] See Figure 4 , 5 As shown, the valve plate assembly device 2 includes a bearing assembly mechanism 21 and a valve plate assembly mechanism 22. The bearing assembly mechanism 21 installs the bearing 023 and the fixed shaft 032 on the valve body 01, and the valve plate assembly mechanism 22 assembles the valve plate 021 and the rotating shaft 022 on the valve body 01.

[0025] See Figure 4 As shown, the bearing assembly mechanism 21 includes a first valve body positioning component 210, a fixed shaft feeding mechanism 211, a fixed shaft pressing mechanism 212, two sets of bearing feeding mechanisms 213, and two sets of bearing pressing mechanisms 214. The two sets of bearing pressing mechanisms 214 are respectively disposed at both ends of the first valve body positioning component. The discharge port of each bearing feeding mechanism 213 is directly opposite to each set of bearing pressing mechanisms 214. The bearing 023 provided by the bearing feeding mechanism 213 is pressed onto the valve body 01 by the corresponding bearing pressing mechanism 214. The fixed-axis pressing mechanism 212 is located beside the first valve body positioning member 210. The discharge port of the fixed-axis feeding mechanism 211 is located directly opposite the fixed-axis pressing mechanism 212. The fixed shaft 032 provided by the fixed-axis feeding mechanism 211 is pressed onto the valve body 01 by the fixed-axis pressing mechanism 212.

[0026] In this embodiment, the bearing assembly mechanism 21 is installed on the bearing assembly workbench 23. Both the fixed-axis feeding mechanism and the bearing feeding mechanism use a vibratory feeder for feeding. The first valve body positioning component can be a positioning block with a positioning groove on the top, which is used to accommodate the valve body. The first valve body positioning component can also include a pressure block movably disposed above the positioning block. The top of the pressure block is connected to the output shaft of a cylinder. The cylinder is used to drive the pressure block to move up and down, closer to or away from the positioning groove on the top of the positioning block (or other driving components that can drive the pressure block closer to or away from the positioning block can be used instead of a cylinder). During assembly, the pressure block first moves up and away from the positioning block, and then the valve body is placed into the positioning groove below the pressure block. The cylinder drives the pressure block to press down, pressing the valve body into the positioning groove. On opposite sides of the positioning block, there are notches that communicate with the positioning groove. The bearing pressing mechanism adopts a combination of servo motor and pressure rod. The servo motor drives the pressure rod to move linearly. The end of the pressure rod is inserted into the notch or directly opposite the notch. The discharge port of each bearing feeding mechanism is connected to one of the notches. When the bearing is pressed, each bearing feeding mechanism (vibrating plate) will transport the bearing into the notch. The width of the notch is equal to the size of a bearing. Therefore, there is only one bearing in the notch at a time. Then the servo motor drives the pressure rod to move, and pushes the bearing in the corresponding notch to move through the pressure rod, and presses the bearing into the valve body, realizing the assembly of two bearings and valve body. The bearing is pre-assembled with the valve body, waiting for the installation of the rotating shaft in the subsequent valve plate assembly (of course, the first valve body positioning component can also be other structures that can position the valve body and facilitate bearing pressing).

[0027] The fixed-axis pressing mechanism 212 can be a combination of a servo motor and a pressing rod, or a combination of a cylinder and a pressing rod. Taking the combination of a cylinder and a pressing rod as an example, a notch communicating with the positioning groove is also provided on the side of the positioning block. This notch is directly opposite the position where the fixed shaft needs to be installed on the valve body. The pressing rod is also directly opposite the notch or inserted into the notch. The discharge port of the fixed-axis feeding mechanism (vibratory plate) is directly connected to the notch, or the fixed shaft sent by the vibratory plate is sequentially fed into the notch through the air pipe. Then the cylinder output shaft extends and drives the pressing rod to move. The pressing rod presses the fixed shaft into the valve body, realizing the assembly of the fixed shaft and the valve body. After the fixed shaft is installed, it is used for the installation of the transition gear in the subsequent motor assembly.

[0028] See Figure 4 As shown, the valve plate assembly assembly device 2 also includes a retaining ring mounting mechanism 24, which mounts a retaining ring 024 onto a rotating shaft 022 (the rotating shaft in the valve plate assembly). In order to reduce space occupation, the retaining ring mounting mechanism is set on the bearing assembly worktable.

[0029] The retaining ring installation mechanism employs a magazine feeding mechanism and a pushing mechanism. Retaining rings (or snap rings) are stacked sequentially from bottom to top within the magazine feeding mechanism. The pushing mechanism is movably positioned within the magazine feeding mechanism. An annular groove is provided on the outer surface of the rotating shaft in the valve plate assembly. This annular groove is used for retaining ring installation. During installation, the rotating shaft is placed next to the pushing mechanism (a positioning hole can be provided next to it, and the rotating shaft is inserted into the positioning hole so that the annular groove is aligned with the retaining ring at the pushing mechanism). Then, the pushing mechanism pushes out a retaining ring from the magazine feeding mechanism and directly engages it on the rotating shaft, achieving rapid installation of the retaining ring.

[0030] In this invention, a label printer 25 is also installed on the side of the bearing assembly workbench 24 or on the bearing assembly workbench 24. The label printer prints a QR code label and affixes it to the valve body to facilitate subsequent recording, querying, and tracking.

[0031] Meanwhile, in this invention, during the installation of bearings and retaining rings, the valve body and rotating shaft can be loaded and unloaded automatically. If fully automated loading and unloading is used, a robotic arm can be installed on or next to the bearing assembly workbench, along with a valve body feeding mechanism and a rotating shaft feeding mechanism (e.g., a vibratory feeder or conveyor). The robotic arm automatically picks up the valve body for labeling, places the valve body on the first valve body positioning component, removes the valve body with the fixed shaft and bearing assembled from the first valve body positioning component, and places it onto the conveying device. Another robotic arm is used to pick up the rotating shaft for retaining ring assembly, and then the robotic arm places the rotating shaft with the retaining ring assembled onto the conveying device. Of course, manual loading and unloading can also be used. In this embodiment, manual loading and unloading of the valve body and rotating shaft is performed at this workstation.

[0032] See Figure 5 As shown, the valve plate assembly mechanism 22 includes a valve plate assembly bracket 220, a second valve body positioning member 221 and a third valve body positioning member 222 disposed on the valve plate assembly bracket 220. A rotating shaft pressing mechanism 223 is provided on one side of the second valve body positioning member 221. The rotating shaft pressing mechanism 223 presses the rotating shaft 022 onto the valve body 01 and the valve plate 021. A valve plate locking screw mechanism 224 is provided directly above the second valve body positioning member 221. The valve plate locking screw mechanism 224 locks the rotating shaft 022 and the valve plate 021 together with fasteners (bolts). A third valve body pressing mechanism 225 is provided directly above the third valve body positioning member 222. The third valve body pressing mechanism 225 presses the valve body 01 onto the third valve body positioning member 222. A shaft end cap pressing mechanism 226 is provided on the side of the third valve body positioning member 222. The shaft end cap pressing mechanism 226 presses the shaft end cap 025 onto the rotating shaft 022 at the end away from the retaining ring 024 of the valve plate assembly 02.

[0033] In this embodiment, the tops of both the second and third valve body positioning components are provided with positioning grooves, which are used for accommodating and positioning the valve body. The rotating shaft pressing mechanism adopts a combination of a cylinder and a pressure rod, or a combination of an electric cylinder and a pressure rod (in this embodiment, a combination of an electric cylinder and a pressure rod is used). The valve plate screw-locking mechanism adopts an automatic screw-locking machine, which can realize automatic feeding and screw-locking of bolts. The automatic screw-locking machine can also realize three-axis movement (X, Y, and Z-axis movement). When assembling the valve plate, place the valve body equipped with the fixed shaft and bearing on the second valve body positioning component. At this time, the holes on the valve body for installing the valve plate are facing upwards, directly opposite the valve plate locking screw mechanism. At the same time, the holes for installing the rotating shaft (at the bearing) are directly opposite the rotating shaft pressing mechanism. Place the valve plate into the required installation position on the valve body, and place the rotating shaft between the rotating shaft pressing mechanism and the valve body. The side with the retaining ring is away from the valve body and close to the rotating shaft pressing mechanism. Then, the rotating shaft pressing mechanism drives the pressure rod to move, inserting the rotating shaft to the bottom. For example, if the rotating shaft pressing mechanism is on the left side of the valve body, push the rotating shaft to the right to insert it to the bottom, so that the right end of the rotating shaft passes through the left bearing, the hole on the valve plate, and the right bearing in sequence, and is located on the right side outside the right bearing. The left end of the retaining ring abuts against the left side wall of the valve body. Then, the valve plate locking screw mechanism uses bolts to lock the rotating shaft and the valve plate. Next, the valve body with the valve plate installed is placed onto the third valve body positioning component. The valve body is then pressed down by the third valve body clamping mechanism (the third valve body clamping mechanism uses a combination of a cylinder and a pressure block; the cylinder drives the pressure block to move downwards, pressing down on the valve body to achieve the valve body's limit). At this time, the shaft end cover pressing mechanism is positioned opposite the right end of the rotating shaft. The shaft end cover pressing mechanism uses a combination of a cylinder and a pressure rod; the cylinder drives the pressure rod to move axially. A vibratory feeder can also be installed to feed the shaft end cover, conveying it to the end of the pressure rod of the shaft end cover pressing mechanism. Then, the shaft end cover pressing mechanism presses the shaft end cover onto the right end of the rotating shaft, achieving axial limitation on the right end of the rotating shaft. The left end of the rotating shaft is axially limited by a retaining ring, thus achieving the installation of the valve plate.

[0034] Further, see Figure 5 As shown, a gap adjustment positioning mechanism 227 is also provided on the valve plate assembly bracket 220 on the side of the second valve body positioning component 221. The gap adjustment positioning mechanism 227 and the rotating shaft pressing mechanism 223 are respectively provided on both sides of the second valve body positioning component 221. The gap adjustment and positioning mechanism 227 includes a gap adjustment and positioning component 2271, a gap adjustment and positioning component driving part 2272, and a displacement sensor 2273. The gap adjustment and positioning component driving part 2272 drives the gap adjustment and positioning component 2271 and the displacement sensor 2273 to be positioned closer to or further away from the rotating shaft pressing mechanism 223.

[0035] In this embodiment, due to processing errors and other reasons, if the rotating shaft is directly pressed to the bottom by the rotating shaft pressing mechanism, the center position of the rotating shaft may not be in the same position as the center of the valve plate, resulting in unqualified assembly. Therefore, to ensure that the center of the rotating shaft and the center of the valve plate are in the same position, a gap adjustment and positioning mechanism is also provided. The gap adjustment and positioning component uses a push rod, and the driving part of the gap adjustment and positioning component uses a cylinder. The driving force of the cylinder is less than the driving force of the rotating shaft pressing mechanism (less than the driving force of the electric cylinder in the rotating shaft pressing mechanism). When assembling the rotating shaft, valve plate, and valve body, the rotating shaft pressing mechanism first presses the rotating shaft, but the rotating shaft is not pressed all the way in. Taking the direction shown in the figure as an example, at this time, the right end of the rotating shaft has passed through the left bearing, valve plate, and right bearing in sequence, but there is still a certain gap between the retaining ring at the left end of the rotating shaft and the valve body. Then, the driving part of the gap adjustment and positioning component drives the gap adjustment and positioning component to move to the left and abut against the right end of the rotating shaft. Preferably, the displacement sensor is a contact displacement sensor. At this time, the displacement sensor records the position A. Then, the electric cylinder in the rotating shaft pressing mechanism drives the pressure rod to move to the right, and the driving force of the electric cylinder is greater than the thrust of the driving part of the gap adjustment and positioning component, pushing the rotating shaft and valve body together. The gap adjustment positioning component and displacement sensor move to the right until the rotating shaft is pushed to the right (the retaining ring contacts the valve body, preventing the rotating shaft from moving further to the right). The displacement sensor records the position B at this time (or the gap adjustment positioning component and displacement sensor first abut against the right side of the valve body, at which point the displacement sensor records position A, and then the rotating shaft is pushed to the right again by the rotating shaft pressing mechanism. Since the valve body position does not move, when the rotating shaft moves to the right and abuts against the gap adjustment positioning component, it will push the gap adjustment positioning component and displacement sensor to the right to position B). The center point between position A and position B is the optimal gap point. Then, the pressure rod in the rotating shaft pressing mechanism moves to the left to the optimal gap point. At the same time, the gap adjustment positioning component drive unit drives the gap adjustment component to move to the left, causing the rotating shaft to move to the left as well, so that the center of the rotating shaft moves to the center of the valve plate. This achieves precise positioning between the rotating shaft and the valve plate. Subsequently, the valve plate and the rotating shaft are locked together by the valve plate locking screw mechanism. Preferably, the second valve body positioning component is a floating clamping platform. The presence of the gap adjustment positioning mechanism can eliminate the influence caused by product errors and is applicable to different models of electronic throttle products, with strong versatility.

[0036] During valve plate assembly, a robotic arm can be used to automate material handling and feeding, achieving automated assembly. Alternatively, manual feeding of the valve plates, shafts, and valve bodies can achieve semi-automated assembly. In this embodiment, a combination of manual labor and a valve plate assembly mechanism is used to achieve semi-automated assembly.

[0037] Among them, see Figure 14As shown, the conveying device 1 includes a pallet 11, a pallet driving unit 12, and a pallet lifting unit 13. There are multiple pallets 11. The pallet driving unit 12 drives multiple pallets 11 to move and moves each pallet 11 to an assembly station. There are multiple pallet lifting parts 13, and each of the multiple assembly stations is provided with a pallet lifting part 13 below it. The pallet lifting part 13 lifts the pallet 11 that is moved at the corresponding assembly station and disengages it from the pallet driving part 12.

[0038] In this embodiment, the conveying device can be a turntable structure, with the pallet mounted on the turntable. The turntable drives the pallet to rotate to each assembly station. In this structure, the various devices are arranged around the top or sides of the turntable. The conveying device can also be a conveyor line structure, in which case the various devices are arranged along the extension direction of the conveyor line. In this embodiment, the conveying device is a rotary conveyor line structure. The pallet drive unit 12 is a combination of an upper conveyor unit 120, a lower conveyor unit 121, and two sets of end conveyor units 122. The upper conveyor unit is located directly above the lower conveyor unit, and the two sets of end conveyor units are respectively located at both ends of the upper and lower conveyor units. The upper and lower conveyor units can be conveyed by belts, chains, or slide rails. For example, if a belt structure is used, the belt will be driven by a motor. Taking the assembly stations as arranged alternately from left to right, the top of the belt of the upper conveyor unit drives from left to right, and the top of the belt of the lower conveyor unit conveys from right to left (preferably, the two belts are arranged alternately with a gap between them to make way for the pallet lifting unit). The top surfaces of the belts of the upper and lower conveyor units are used to support the pallet. The left end conveying section includes a lifting member and a conveying member (e.g., a conveyor belt) mounted on the lifting member. The top surface of the conveyor belt moves from left to right. The lifting member can push the conveyor belt on it to move up and down so that it is aligned with the top surface of the belt of the upper conveying section and the top surface of the belt of the lower conveying section. The right end conveying section includes a lifting member and a conveyor belt mounted on the lifting member. The top surface of the conveyor belt moves from right to left. The lifting member can push the conveyor belt on it to move up and down so that it is aligned with the top surface of the belt of the upper conveying section and the top surface of the belt of the lower conveying section.The belt of the upper conveyor transports the pallet from left to right to each assembly station. When the pallet moves to the corresponding assembly station, the pallet lifting unit lifts the pallet containing the valve body, placing it at the corresponding assembly device. The assembly device then assembles the corresponding parts. After assembly, the pallet lifting unit lowers the pallet and places it on the belt of the upper conveyor (the pallet lifting unit is located between the upper and lower conveyor sections; it can be a combination of a lifting cylinder and a top plate or push rod. The extension and retraction of the lifting cylinder's output shaft drives the top plate or push rod to move up and down, thereby moving the pallet up and down to detach it from or place it on the upper conveyor). This cycle continues until the pallet reaches the rightmost end of the belt of the upper conveyor. Afterwards (before this, the assembled products are removed, leaving the pallet empty, or the pallet is sent to the lower conveyor and then removed), the product is conveyed to the conveyor belt of the right-hand end conveyor. The lifting mechanism of the right-hand end conveyor then moves the conveyor belt containing the pallet downwards to face the lower conveyor. The conveyor belt then operates, moving the pallet to the left onto the lower conveyor belt. The lower conveyor belt then moves the pallet to the left onto the left-hand end conveyor belt. The lifting mechanism of the left-hand end conveyor then lifts the conveyor belt, aligning it with the upper conveyor. The conveyor belt then moves the pallet to the right onto the upper conveyor belt, continuing the product placement, conveying, and assembly process, thus repeating the cycle. This structure reduces space occupancy. Alternatively, the pallet drive unit can use a loop-shaped belt or conveyor line, with assembly devices arranged beside some of the conveyor line and others outside the assembly devices to return empty pallets to the starting assembly position. This structure increases space occupancy.

[0039] See Figure 6 , 7 As shown, the motor assembly assembly device 3 includes a motor assembly placement mechanism 31 and a motor assembly locking mechanism. The motor assembly placement mechanism 31 is used to place the motor assembly 03 into the valve body 01, and the motor assembly locking mechanism is used to lock the motor assembly 03 into the valve body 01.

[0040] The motor assembly placement mechanism 31 includes a motor assembly gripper 310 and a motor assembly gripper drive unit 311. The motor assembly gripper drive unit 311 drives the motor assembly gripper 310 to move along the X-axis and Y-axis (or move along the X, Y, and Z axes).

[0041] The motor assembly locking mechanism includes a motor locking mechanism 32 and a sector gear welding mechanism 33. The motor locking mechanism 32 is disposed on the side of the motor assembly gripper 310, and the motor assembly gripper drive unit 311 drives the motor locking mechanism 32 to move along the X-axis and Y-axis. The motor locking mechanism 32 is used to lock the motor 031 in the motor assembly 03 onto the valve body 01. The sector gear welding mechanism 33 includes a welding machine 330, a sector gear angle adjustment mechanism 331, and a valve plate angle adjustment mechanism 332. The valve plate angle adjustment mechanism 332 is used to adjust the angle of the valve plate 021 on the valve plate assembly 02 installed on the valve body 01. The sector gear angle adjustment mechanism 331 is used to adjust the angle of the sector gear 034. The welding machine 330 welds the sector gear 034 in the motor assembly 03 to the rotating shaft 022 in the valve plate assembly 02.

[0042] In this embodiment, during the assembly of the motor assembly, the valve body equipped with the valve plate assembly is moved by the conveying device to the area directly below the motor assembly placement mechanism. Then, the pallet lifting part lifts the product with the valve body off the pallet drive part, and the motor assembly gripper grabs the motor assembly (a feeding part is provided for feeding the motor assembly, which facilitates the gripping of the motor assembly gripper), and places the motor assembly into the valve body, thus realizing the placement of the motor assembly (the motor assembly gripper uses a claw or a robotic arm, preferably a claw, which is simple in structure and low in cost). If the motor assembly has multiple parts, the motor assembly gripper can sequentially grab each part and place it into the valve body. After the motor assembly is placed in, the motor locking mechanism directly locks the motor in the motor assembly onto the valve body. The motor locking mechanism uses an automatic screw tightening gun (which can move vertically) that can automatically provide bolts. The motor is locked onto the valve body by bolts. After the motor assembly is locked, the tray is lowered and placed on the tray drive unit. The tray drive unit drives the tray to move directly below the sector gear welding mechanism. The tray lifting unit lifts the tray, and then the sector gear welding mechanism welds the sector gear in the motor assembly to the rotating shaft.

[0043] The sector gear welding mechanism 33 is mounted on a mounting frame 34. The sector gear angle adjustment mechanism 331 includes a rotating head 3310, a rotating head drive unit 3311, and an adjusting cylinder 3312. When adjusting the angle of the sector gear, the output shaft of the adjusting cylinder extends and pushes the rotating head and the rotating head drive unit downward, so that the rotating head meshes with the sector gear (or the rotating head jams the sector gear). The rotating head drive unit drives the rotating head to rotate (the rotating head is mounted on a sliding plate, the rotating head drive unit is mounted on the sliding plate, the sliding plate slides vertically on the mounting frame, and the adjusting cylinder drives the sliding plate to move up and down). The rotating head drive unit can adopt a combination of a drive motor and a belt. The belt is connected to the top of the rotating head and the output shaft of the drive motor, so as to drive the rotating head to rotate. The rotating head drives the sector gear to rotate to the required angle. The valve plate angle adjustment mechanism is also mounted on the slide plate, moving up and down synchronously with the rotating head. This mechanism uses a combination of a cylinder and a push rod. After the rotating head meshes with the sector gear and drives it to the desired angle, the cylinder simultaneously extends the push rod, pushing the valve plate to the closed angle. Then, a welding machine (preferably a laser welding machine, preferably a galvanometer laser welding machine) welds the sector gear and the rotating shaft together, fixing them in place. This ensures that when the motor drives the sector gear in the subsequent motor assembly, it synchronously drives the valve plate to rotate via the rotating shaft. After welding, all components of the sector gear welding mechanism are reset, and then the pallet lifting unit moves the pallet down onto the pallet drive unit. The pallet drive unit then moves the pallet to the next assembly station.

[0044] See Figure 8 , 9 As shown, the positioning magnetic component assembly device 4 includes a positioning magnetic component placement mechanism 41 and a positioning magnetic component fixing mechanism 42. The positioning magnetic component placement mechanism 41 includes a positioning magnetic component feeding part 410 and a positioning magnetic component gripping part 411. The positioning magnetic component gripping part 411 grips and places the positioning magnetic component 04 provided by the positioning magnetic component feeding part 410 onto the valve body 01. After the motor assembly is completed, the product moves to the positioning magnetic component assembly station. It first moves to the positioning magnetic component placement mechanism, and then the pallet lifting part pushes the pallet and valve body upward. The positioning magnetic component feeding part 410 can use a positioning magnetic component feeding clip 4101 and a dispensing cylinder 4102. The positioning magnetic components are arranged sequentially from bottom to top in the positioning magnetic component feeding clip. The output shaft of the dispensing cylinder is equipped with a dispensing plate, which is used to push the positioning magnetic components out of the positioning magnetic component feeding clip one by one to the gripping position. The positioning magnetic component gripping part can use a multi-axis robot or other gripping mechanisms. In this embodiment, the positioning magnetic component gripping part 411 includes a positioning magnetic component gripper (not shown in the figure), a positioning magnetic component gripping cylinder 4110, and a positioning magnetic component gripping drive cylinder 4111. The positioning magnetic component gripper can be a claw or a suction cup. The positioning magnetic component gripping cylinder is used to drive the positioning magnetic component gripper to move vertically. During the gripping and unloading process, the positioning magnetic component gripping drive electric cylinder drives the positioning magnetic component gripping cylinder and the positioning magnetic component gripping piece to move horizontally to directly above the gripping position. Then, the positioning magnetic component gripping cylinder drives the positioning magnetic component gripping piece to move downwards, gripping one of the separated positioning magnetic components. The positioning magnetic component gripping piece then drives the positioning magnetic component upwards, detaching it from the gripping position. The positioning magnetic component gripping drive electric cylinder drives the product to move horizontally above the valve body, directly facing the unloading position of the positioning magnetic component. The positioning magnetic component gripping cylinder drives the positioning magnetic component gripping piece to move downwards, placing the positioning magnetic component on the valve body, thus achieving placement. Then, the tray moves downwards, moving to below the positioning magnetic component fixing mechanism. The tray drives the product upwards, and the positioning magnetic component fixing mechanism connects the positioning magnetic component to the valve body (after the motor assembly is completed, the motor assembly also constitutes part of the valve body, and the positioning magnetic component is mounted on the rotating shaft).

[0045] See Figure 9As shown, the positioning magnetic component fixing mechanism 42 includes a positioning magnetic component limiting part 420 and a positioning magnetic component hot riveting mechanism 421. The positioning magnetic component limiting part 420 limits the valve body and / or the positioning magnetic component, and the positioning magnetic component hot riveting mechanism 421 hot rivets the positioning magnetic component 04 to the valve body 01. The positioning magnetic component limiting part includes a positioning magnetic component pressing block and a positioning magnetic component pressing block cylinder. The positioning magnetic component pressing block cylinder drives the positioning magnetic component pressing block to move vertically. The positioning magnetic component hot riveting mechanism 421 includes a hot press welding machine 4210 and a hot press cylinder 4211. The hot press cylinder drives the hot press welding machine to move vertically. When fixing the positioning magnetic component, the pallet lifting part lifts the pallet, disengaging it from the pallet drive part. Then, the positioning magnetic component pressing block cylinder drives the positioning magnetic component pressing block to move downwards, pressing the product. Next, the output shaft of the hot press cylinder extends, driving the hot press welding machine to move downwards and contact the positioning magnetic component, performing hot riveting. After hot riveting is complete, all components of the positioning magnetic component fixing mechanism reset, the pallet moves downwards, and the pallet drive part moves the pallet to the next assembly station (top cover assembly station). Furthermore, to accelerate the cooling and solidification of the positioning magnetic component after hot riveting, an air blowing head 4212 is also provided on the side of the hot press welding machine. After hot pressing is completed, air is blown onto the hot riveting position through the air blowing head to accelerate cooling and solidification.

[0046] See Figure 10 , 11 As shown, the upper cover assembly device 5 includes an upper cover pressing mechanism 51, an upper cover pressing detection mechanism 52 and / or an upper cover locking mechanism 53. The upper cover pressing mechanism 51 presses the upper cover 05 tightly onto the valve body 01. The upper cover pressing detection mechanism 52 is used to detect whether the upper cover 05 and the valve body 01 are properly fastened. The upper cover locking mechanism 53 locks the upper cover 05 to the valve body 01 with fasteners.

[0047] There are two ways to connect the upper cover of the electronic throttle body to the valve body: one is a snap-fit ​​connection, where the upper cover has snaps / slots, and the valve body has slots / snap that mate with the snaps / slots, allowing for direct snap-fit ​​engagement. The other is a screw connection, where the valve body has screw holes, and the upper cover is bolted to these holes. The upper cover pressing mechanism and upper cover pressing detection mechanism are used for the snap-fit ​​connection, while the upper cover locking mechanism is used for the screw-fit locking. In this embodiment, both assembly devices are provided. The appropriate mechanism is used to assemble the upper cover according to its locking type. For example, if the upper cover and valve body are snap-fit ​​connected, the upper cover pressing mechanism and upper cover pressing detection mechanism are used for assembly, while the upper cover locking mechanism is not used, leaving this assembly station unused. If the upper cover and valve body are fixed by screws, the upper cover pressing mechanism and upper cover pressing detection mechanism are not used, leaving these two stations unused, and only the upper cover locking mechanism is used.

[0048] Among them, see Figure 10 As shown, the upper cover pressing mechanism 51 includes an upper cover pressing block 510 and an upper cover pressing block cylinder 511. The upper cover pressing block cylinder 511 drives the upper cover pressing block 510 to move up and down, pressing the upper cover onto the valve body (the pallet lifting part lifts the pallet containing the valve body close to the upper cover pressing block), thus achieving the snap-fit ​​between the upper cover and the valve body. After the upper cover and the valve body are snapped together, the conveying device moves the pallet and the product to the upper cover pressing detection mechanism. The upper cover pressing detection mechanism can be a combination of a detection pressing block and a detection pressing block cylinder. The detection pressing block cylinder drives the detection pressing block to move up and down. A sensor is installed on the detection pressing block. The product is placed under the detection pressing block, and the detection pressing block cylinder drives the detection pressing block to move down a set distance. The sensor detects whether it is in contact with the upper cover, or whether the pressing block moves down a set distance after the sensor contacts the upper cover, to determine whether the pressing is in place and whether it is qualified. Of course, the upper cover pressing detection mechanism can also be a vision inspection mechanism, such as an industrial camera, which takes pictures to detect whether the snap-fit ​​connection is in place and whether it is qualified. In both assembly stations, the valve body is transported to these stations via a conveyor system, and the pallet is lifted by a pallet lifting unit to position the valve body. The top cover can be manually placed on the valve body, or it can be automatically picked up and placed on the valve body by a robotic arm (a top cover feeding device is provided to supply the top cover).

[0049] If a screw-locking method is used, the top cover locking mechanism 53 includes at least one set of automatic screw tightening guns 531 and screw tightening gun drive units 532. The automatic screw tightening guns can automatically supply bolts, and the screw tightening gun drive units are used to drive the automatic screw tightening guns to move in two-axis (X, Y axis directions) or three-axis (X, Y, Z axis directions), using screws to automatically tighten the top cover and valve body. In this embodiment, two sets of automatic screw tightening guns and two sets of screw tightening gun drive units are provided, which can simultaneously tighten two screws, thereby improving the locking efficiency. See [link to documentation]. Figure 11 As shown. Of course, one set or more sets can be used, as long as the mechanism can be arranged conveniently and without mutual interference. Alternatively, an automatic screw-locking machine can be used for the top cover locking mechanism. During locking, the tray lifting part lifts the tray in place, and then the top cover locking mechanism locks the top cover onto the valve body, achieving automatic locking. After locking is complete, the top cover locking mechanism resets, the tray lifting part also resets, and the tray drive part moves the tray to the next assembly station. This assembly equipment can be used to assemble different types of electronic throttle valves, offering strong versatility.

[0050] See Figure 12As shown, it also includes a marking and programming device 6, which includes a programming fixture 61, a marking mechanism 62, and a smoke exhaust mechanism 63. The programming fixture 61 is used to mark the assembled electronic throttle body, and the smoke exhaust mechanism 63 exhausts the smoke generated during the marking process. The programming fixture 61 is used to program the assembled electronic throttle body.

[0051] In this implementation, the upper cover contains a PCBA for electrical connection with the motor assembly and the magnetic positioning assembly (the motor assembly and the magnetic positioning assembly have conductive parts, and the upper cover has connectors that mate with the conductive parts; when the upper cover is connected to the valve body, the connectors are plugged into the conductive parts to achieve electrical connection). The outer surface of the upper cover has pins or plugs for connection with the automotive wiring harness. To enable the motor assembly and the magnetic positioning assembly to work, the PCBA needs to be programmed or data-burned. Therefore, a marking and burning device is also provided. After the top cover is assembled, the tray is lifted by the tray lifting part, and the burning fixture contacts the pins on the top cover for burning (of course, it can also be burned in advance. In the case of pre-burning, if some top covers are not used up, it will cause waste or require re-burning, or the valve body is equipped with different top covers for burning. Therefore, in this embodiment, burning is performed after the top cover is assembled to prevent waste or incorrect assembly). After the burning is completed, the assembly QR code is engraved on the product by the marking mechanism (engraved on the valve body or top cover, the marking mechanism uses a laser engraving machine) to bind the production data with the QR code. The production data of subsequent processes are also bound to the QR code. Smoke is generated during the engraving process, so a smoke exhaust mechanism is provided to exhaust the smoke and fumes generated during the marking process for unified treatment, which is more environmentally friendly. The smoke exhaust mechanism uses a smoke exhaust pipe, which is connected to a negative pressure mechanism to directly generate negative pressure and collect and treat the smoke.

[0052] After marking is completed, the product can be unloaded directly. Unloading can be done manually or by a robot. Preferably, the unloading position is on the lower conveyor. After the pallet is placed on the right end conveyor, it is transported to the lower conveyor and then conveyed to the left by the lower conveyor to unloading position 7, where it can be unloaded manually or automatically by a robot. Of course, the unloading position can also be set in other locations.

[0053] See Figure 13 As shown, it also includes an airtightness testing device 8, which is at least one set. The airtightness testing device 8 includes a lower mold 81 for an airtightness testing box, an upper mold 82 for an airtightness testing box disposed above the lower mold 81, and an upper mold driving part 83 for an airtightness testing box. The upper mold driving part 83 for an airtightness testing box is configured to drive the upper mold 82 for an airtightness testing box to move closer to or further away from the lower mold 81 for an airtightness testing box. The device also includes a lower mold drive unit 84 for airtightness test box. The lower mold drive unit 84 is configured to drive the lower mold 81 of the airtightness test box to move along a moving direction perpendicular to the upper mold 82 of the airtightness test box, so that the lower mold 81 of the airtightness test box moves directly below the upper mold 82 of the airtightness test box or moves to the side below the upper mold 82 of the airtightness test box.

[0054] Taking the illustrated direction as an example, the airtightness testing device uses two sets, arranged alternately on the left and right. This allows the other set to change materials while one set is testing a product, improving testing efficiency. The lower mold drive unit of the airtightness testing box uses a longitudinal cylinder to drive the lower mold to move longitudinally, positioning it directly below or at the front end of the upper mold. When testing is required, the product can be manually or robotically placed onto the moved lower mold. Then, the lower mold drive unit moves the lower mold backward to directly below the upper mold, and the upper mold drive unit presses it down. This allows air to be introduced or negative pressure to be generated in the upper and / or lower molds to test for leaks. The airtightness testing box has product cavities on the bottom surface of the upper mold and the top surface of the lower mold for accommodating the product. It also includes air pipes connected to an air source or negative pressure device for blowing air or generating negative pressure to test airtightness. Monitoring instruments are also included to detect whether the pressure values ​​of the blowing air or negative pressure are within acceptable limits, thus determining whether the airtightness is satisfactory. In this embodiment, the upper and lower mold drive units of the airtightness testing box are pneumatic cylinders. Airtightness testing can be performed manually or automatically using a robotic arm.

[0055] In this embodiment, the airtightness testing device can be set in the front-end process of the material unloading station to perform airtightness testing between unloading, or it can be set in the back-end process of the material unloading station to perform airtightness testing after unloading. There is no limitation here.

[0056] In this invention, corresponding trays can be used and positioning fixtures or positioning components for different valve bodies can be replaced according to different types of electronic throttle valves. This invention offers strong versatility and wide applicability, thereby reducing the manufacturing and assembly costs of electronic throttle valves. Furthermore, it allows for rapid adjustments based on the production schedule of different product varieties, improving the utilization rate of assembly equipment and reducing production costs and R&D costs.

[0057] In the description of this invention, it should be understood that the terms "upper," "lower," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0058] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. For instance, the two components can be mechanically connected by contact or abutting; they can also be directly hooked or connected by an intermediate medium; or they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

Claims

1. An electronic throttle assembly device, characterized in that: The system includes a conveying device (1) that sequentially conveys the valve body (01) to each assembly station; and also includes components sequentially arranged at each assembly station: Valve plate assembly assembly device (2), which assembles the valve plate assembly (02) onto the valve body (01); Motor assembly device (3), which assembles motor assembly (03) onto valve body (01); Positioning magnetic component assembly device (4), which assembles the positioning magnetic component (04) into the valve body (01); The upper cover assembly device (5) assembles the upper cover (05) onto the valve body (01).

2. The electronic throttle assembly equipment according to claim 1, characterized in that: The valve plate assembly device (2) includes a bearing assembly mechanism (21) and a valve plate assembly mechanism (22). The bearing assembly mechanism (21) installs the bearing (023) and the fixed shaft (032) on the valve body (01), and the valve plate assembly mechanism (22) assembles the valve plate (021) and the rotating shaft (022) on the valve body (01).

3. The electronic throttle assembly equipment according to claim 2, characterized in that: The bearing assembly mechanism (21) includes a first valve body positioning component (210), a fixed shaft feeding mechanism (211), a fixed shaft pressing mechanism (212), two sets of bearing feeding mechanisms (213) and two sets of bearing pressing mechanisms (214). The two sets of bearing pressing mechanisms (214) are respectively located at both ends of the first valve body positioning component (210). The outlet of each bearing feeding mechanism (213) is directly opposite to each set of bearing pressing mechanisms (214). The bearing (023) provided by the bearing feeding mechanism (213) is pressed onto the valve body (01) by the corresponding bearing pressing mechanism (214). The fixed-axis pressing mechanism (212) is located beside the first valve body positioning member (210). The discharge port of the fixed-axis feeding mechanism (211) is located directly opposite the fixed-axis pressing mechanism (212). The fixed shaft (032) provided by the fixed-axis feeding mechanism (211) is pressed onto the valve body (01) by the fixed-axis pressing mechanism (212).

4. The electronic throttle assembly equipment according to claim 2, characterized in that: The valve plate assembly assembly device (2) further includes a retaining ring mounting mechanism (24), which mounts a retaining ring (024) onto a rotating shaft (022).

5. The electronic throttle assembly equipment according to claim 2, characterized in that: The valve plate assembly mechanism (22) includes a valve plate assembly bracket (220), a second valve body positioning component (221) and a third valve body positioning component (222) disposed on the valve plate assembly bracket (220). A rotating shaft pressing mechanism (223) is provided on one side of the second valve body positioning component (221). The rotating shaft pressing mechanism (223) presses the rotating shaft (022) onto the valve body (01) and the valve plate (021). A valve plate locking screw mechanism (224) is provided directly above the second valve body positioning component (221). The valve plate locking screw mechanism (224) locks the rotating shaft (022) and the valve plate (021) together with fasteners. A third valve body pressing mechanism (225) is provided directly above the third valve body positioning component (222). The third valve body pressing mechanism (225) presses the valve body (01) onto the third valve body positioning component (222). A shaft end cap pressing mechanism (226) is provided on the side of the third valve body positioning component (222). The shaft end cap pressing mechanism (226) presses the shaft end cap (025) onto the rotating shaft (022) at the end of the retaining ring (024) away from the valve plate assembly (02).

6. The electronic throttle assembly equipment according to claim 5, characterized in that: A gap adjustment positioning mechanism (227) is also provided on the valve plate assembly bracket (220) on the side of the second valve body positioning component (221). The gap adjustment positioning mechanism (227) and the rotating shaft pressing mechanism (223) are respectively located on both sides of the second valve body positioning component (221). The gap adjustment positioning mechanism (227) includes a gap adjustment positioning component (2271), a gap adjustment positioning component drive unit (2272), and a displacement sensor (2273). The gap adjustment positioning component drive unit (2272) is configured to drive the gap adjustment positioning component (2271) and the displacement sensor (2273) to move closer to or further away from the rotating shaft pressing mechanism (223).

7. The electronic throttle assembly equipment according to claim 1, characterized in that: The motor assembly assembly device (3) includes a motor assembly placement mechanism (31) and a motor assembly locking mechanism. The motor assembly placement mechanism (31) is used to place the motor assembly (03) into the valve body (01), and the motor assembly locking mechanism is used to lock the motor assembly (03) into the valve body (01).

8. The electronic throttle assembly equipment according to claim 7, characterized in that: The motor assembly placement mechanism (31) includes a motor assembly gripper (310) and a motor assembly gripper drive unit (311), wherein the motor assembly gripper drive unit (311) drives the motor assembly gripper (310) to move; The motor assembly locking mechanism includes a motor locking mechanism (32) and a sector gear welding mechanism (33). The motor locking mechanism (32) is located on the side of the motor assembly gripper (310), and the motor assembly gripper drive unit (311) drives the motor locking mechanism (32) to move along the X-axis and Y-axis. The motor locking mechanism (32) is used to lock the motor (031) in the motor assembly (03) onto the valve body (01). The sector gear welding mechanism (33) includes a welding machine (330), a sector gear angle adjustment mechanism (331), and a valve plate angle adjustment mechanism (332). The valve plate angle adjustment mechanism (332) is used to adjust the angle of the valve plate (021) in the valve plate assembly (02) installed on the valve body (01). The sector gear angle adjustment mechanism (331) is used to adjust the angle of the sector gear (034). The welding machine (330) welds the sector gear (034) in the motor assembly (03) to the rotating shaft (022) in the valve plate assembly (02).

9. The electronic throttle assembly equipment according to claim 1, characterized in that: The positioning magnetic component assembly device (4) includes a positioning magnetic component placement mechanism (41) and a positioning magnetic component fixing mechanism (42). The positioning magnetic component placement mechanism (41) includes a positioning magnetic component feeding part (410) and a positioning magnetic component gripping part (411). The positioning magnetic component gripping part (411) grips the positioning magnetic component (04) provided by the positioning magnetic component feeding part (410) and places it on the valve body (01). The positioning magnetic component fixing mechanism (42) includes a positioning magnetic component limiting part (420) and a positioning magnetic component hot riveting mechanism (421). The positioning magnetic component limiting part (420) limits the valve body (01) and / or the positioning magnetic component (04), and the positioning magnetic component hot riveting mechanism (421) hot rivets the positioning magnetic component (04) to the valve body (01).

10. The electronic throttle assembly equipment according to claim 1, characterized in that: The upper cover assembly device (5) includes an upper cover pressing mechanism (51), an upper cover pressing detection mechanism (52) and / or an upper cover locking mechanism (53). The upper cover pressing mechanism (51) presses the upper cover (05) onto the valve body (01). The upper cover pressing detection mechanism (52) is used to detect whether the upper cover (05) and the valve body (01) are properly fastened. The upper cover locking mechanism (53) locks the upper cover (05) onto the valve body (01) with fasteners.

11. The electronic throttle assembly equipment according to claim 1, characterized in that: The conveying device (1) includes a pallet (11), a pallet drive unit (12) and a pallet lifting unit (13). There are multiple pallets (11). The pallet drive unit (12) drives multiple pallets (11) to move and moves each pallet (11) to an assembly station. There are multiple pallet lifting parts (13), and each of the multiple assembly stations is provided with a pallet lifting part (13) below it. The pallet lifting part (13) lifts the pallet (11) that is moving at the corresponding assembly station and disengages it from the pallet drive part (12).

12. The electronic throttle assembly equipment according to claim 1, characterized in that: It also includes an airtightness testing device (8), which is at least one set. The airtightness testing device (8) includes a lower mold (81) of an airtightness testing box, an upper mold (82) of an airtightness testing box disposed above the lower mold (81) of the airtightness testing box, and an upper mold driving part (83) of the airtightness testing box. The upper mold driving part (83) of the airtightness testing box is configured to drive the upper mold (82) of the airtightness testing box to move closer to or further away from the lower mold (81) of the airtightness testing box. The device also includes a lower mold drive unit (84) for airtightness test boxes. The lower mold drive unit (84) is configured to drive the lower mold (81) of the airtightness test box to move along a direction perpendicular to the upper mold (82) of the airtightness test box, so that the lower mold (81) of the airtightness test box moves directly below the upper mold (82) of the airtightness test box or moves to the side below the upper mold (82).

13. The electronic throttle assembly equipment according to claim 1, characterized in that: It also includes a marking and programming device (6), which includes a programming fixture (61), a marking mechanism (62) and a smoke exhaust mechanism (63). The programming fixture (61) is used to mark the assembled electronic throttle body, and the smoke exhaust mechanism (63) exhausts the smoke generated during the marking process. The programming fixture (61) is used to program the assembled electronic throttle body.

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