Electronic throttle body and sector gear assembly device and method

Abstract

This invention discloses an assembly device and method for an electronic throttle body and a sector gear, including a frame, a torsion spring sector gear assembly mechanism, a sector gear body assembly mechanism, and a welding mechanism mounted on the frame. The torsion spring sector gear assembly mechanism assembles the sector gear with the torsion spring, the sector gear body assembly mechanism assembles the assembled torsion spring and sector gear onto the body, and the welding mechanism welds the sector gear to the body. Advantages: It enables rapid assembly of the torsion spring, sector gear, and body, offering higher efficiency and precision compared to manual assembly. The entire device only requires manual transfer of the product, saving space compared to mechanical transfer mechanisms and reducing the overall size of the equipment.

Description

Technical Field

[0001] This invention relates to the field of electronic throttle body manufacturing, specifically to an assembly device and method for an electronic throttle body and a sector gear. Background Technology

[0002] The manufacturing process of electronic throttle valves requires the assembly of various components, including sector gears, torsion springs, and a body with a housing. Traditional assembly methods require a large amount of manual assistance, and traditional assembly devices require multiple mechanisms to assemble and weld in batches, resulting in low equipment integration and low efficiency.

[0003] Therefore, it is necessary to provide an assembly device and method for an electronic throttle body and a sector gear. Summary of the Invention

[0004] The present invention provides an electronic throttle body and sector gear assembly device and method, which effectively solves the problems of low integration and low efficiency of existing devices.

[0005] The technical solution adopted in this invention is:

[0006] An electronic throttle body and sector gear assembly device includes a frame, a torsion spring sector gear assembly mechanism, a sector gear body assembly mechanism, and a welding mechanism mounted on the frame. The torsion spring sector gear assembly mechanism is used to assemble the sector gear with the torsion spring. The sector gear body assembly mechanism is used to assemble the assembled torsion spring and sector gear onto the body. The welding mechanism is used to weld the sector gear to the body.

[0007] Furthermore, the torsion spring sector tooth assembly mechanism includes a first bracket mounted on the frame, a first material box assembly mounted on the first bracket, a first fixture mounted on the first bracket, a pressing sector tooth assembly mounted on the first bracket, and a torsion spring end pushing assembly mounted on the first bracket.

[0008] Furthermore, the first fixture includes a disc mounted on a first support, an arc-shaped support plate mounted on the disc, and a support seat mounted on the disc and concentric with the arc-shaped support plate. The disc and the first support are provided with an arc-shaped through hole located between the arc-shaped support plate and the support seat.

[0009] Furthermore, the pressing fan gear assembly includes a first cylinder A mounted on a first bracket and a first pressure head fixedly mounted on the output end of the first cylinder A, the first pressure head being located above the first fixture; the torsion spring end pushing assembly includes a connecting shaft, a lifting frame slidably connected to the first bracket, a first cylinder B fixedly mounted on the first bracket for driving the lifting frame to rise and fall, a fixed frame fixedly mounted below the first bracket, a first motor vertically fixedly mounted on the fixed frame, a coupling mounted on the output shaft of the first motor, a first linear bearing vertically mounted on the first bracket, a lifting shaft sleeved within the first linear bearing, a lifting plate coaxially fixedly mounted above the lifting shaft and abutting against the upper end face of the lifting frame, and a push rod mounted on the upper end face of the lifting plate; the connecting shaft includes a prism and a cylinder coaxially mounted at the lower end of the prism, the cylinder being coaxially fixedly connected to the coupling, and the lifting shaft having a prismatic groove slidably connected to the prism.

[0010] Furthermore: the No. 1 cylinder B drives the lifting frame to move the lifting plate and push rod up and down; the No. 1 motor drives the coupling to rotate the connecting shaft, lifting shaft, lifting plate and push rod; the push rod rotates along the arc-shaped through hole to move the end of the torsion spring; the No. 1 cylinder B drives the lifting frame to descend, causing the lifting plate and push rod to descend, so that the push rod disengages from the end of the torsion spring.

[0011] Furthermore, the sector gear body assembly mechanism includes a first linear guide rail mounted on the frame along the Y-axis, a slide plate slidably mounted on the first linear guide rail, a first linear module fixedly mounted on the frame for driving the slide plate to slide, a first tooling mounted on the slide plate, a second bracket mounted on the frame, a second linear guide rail mounted on the second bracket along the X-axis, a slide block slidably mounted on the second linear guide rail, a second linear module fixedly mounted on the second bracket for driving the slide block to slide along the second linear guide rail, a third linear guide rail vertically mounted on the slide block, a lifting seat slidably mounted on the third linear guide rail, and a lifting seat fixedly mounted on the slide block for driving the lifting... The system includes a No. 3 linear module that slides along the No. 3 linear guide rail, and a torsion spring sector gear transfer assembly mounted on the slide. The torsion spring sector gear transfer assembly includes a No. 2 motor and a No. 2 rotating shaft mounted vertically on the slide, a drive pulley mounted on the No. 2 motor rotating shaft, a driven pulley coaxially fixed on the No. 2 rotating shaft, a synchronous belt that is connected to the drive pulley and the driven pulley, a floating connector mounted at the lower end of the No. 2 rotating shaft, a sleeve mounted on the lower end face of the floating connector, a locating pin mounted vertically inside the sleeve for positioning the locating hole on the upper end face of the sector gear, a connecting plate mounted on the outside of the sleeve, a No. 3 cylinder mounted horizontally on the connecting plate, and a clamping plate mounted at the output end of the No. 3 cylinder.

[0012] Furthermore, the welding mechanism includes a fourth linear guide rail arranged on the frame along the Y-axis, a fourth tooling slidably arranged on the fourth linear guide rail, a fourth linear module arranged on the frame for driving the fourth tooling to slide along the fourth linear guide rail, a welding assembly arranged on the frame, and a valve plate adjustment assembly arranged on the frame.

[0013] Furthermore, the welding assembly includes a No. 4 support mounted on the frame, a laser welding machine mounted on the No. 4 support, a telescopic duct, a No. 5 support mounted on the frame, a No. 5 linear guide rail vertically mounted on the No. 5 support, an L-shaped slide plate slidably mounted on the No. 5 linear guide rail, a No. 5 cylinder mounted on the No. 5 support for driving the L-shaped slide plate up and down, a No. 6 linear guide rail mounted along the Y-axis on the L-shaped slide plate, a rack slidably mounted on the No. 6 linear guide rail, a No. 6 cylinder mounted on the L-shaped slide plate for driving the rack to slide along the No. 6 linear guide rail, and a rotating clamping component mounted on the L-shaped slide plate. The telescopic duct is connected at both ends to the L-shaped slide plate and the welding machine, respectively. The L-shaped slide plate has a vertical through hole. The rotating clamping component includes a flange mounted on a vertical through hole, a ball bearing whose outer ring abuts against the inner wall of the flange, a hollow shaft connected to the inner ring of the ball bearing, a gear coaxially fixed on the hollow shaft, a pressure cylinder concentric with the hollow shaft, a stepped screw threaded to the hollow shaft and slidably connected to the pressure cylinder, a first spring whose two ends abut against the pressure cylinder and the hollow shaft respectively, and a lever fixedly connected to the hollow shaft and slidably connected to the pressure cylinder. The hollow shaft has a step inside, and the upper end of the first spring abuts against the step. The pressure cylinder has a second through hole for welding machine welding avoidance. The hollow shaft has a first through hole. The first through hole, the second through hole, and the telescopic air duct are connected. An air outlet is provided on one side of the telescopic air duct.

[0014] Furthermore, the valve adjustment assembly includes a No. 7 seat and a No. 8 seat mounted on the frame, a No. 7 cylinder mounted on the No. 7 seat along the Y-axis, a connecting frame fixedly mounted at the output end of the No. 7 cylinder, two No. 7 linear bearings arranged along the X-axis and extending along the Y-axis mounted on the connecting frame, two No. 7 rods sleeved in the No. 7 linear bearings, two displacement sensors fixedly mounted on the connecting frame corresponding to the two No. 7 rods respectively, a No. 8 linear module mounted on the No. 8 seat along the Y-axis, a movable seat fixedly mounted on the No. 8 linear module, two No. 8 linear bearings arranged along the X-axis and extending along the Y-axis mounted on the movable seat, two push rods respectively sleeved in the No. 8 linear bearings, and No. 8 springs whose two ends respectively abut against one end of the push rod and the movable seat. The No. 7 rod and the push rod are vertically corresponding. The No. 4 tooling includes a tooling body and a pressing component mounted on the tooling body to press the product. The tooling body is provided with a No. 7 through hole along the Y-axis, and the No. 7 rod and the push rod extend into the No. 7 through hole.

[0015] The method for assembling the electronic throttle body and the sector gear, using the aforementioned electronic throttle body and sector gear assembly device, includes the following steps: S1, manually placing the torsion spring and sector gear pre-assembled into the torsion spring sector gear assembly mechanism; S2, the torsion spring sector gear assembly mechanism moves the end of the torsion spring to fix the torsion spring onto the sector gear, forming a torsion spring sector gear assembly; S3, manually placing the body and the torsion spring sector gear assembly into the sector gear body assembly mechanism, and then the sector gear body assembly mechanism assembles the torsion spring sector gear assembly onto the body; S4, manually placing the assembled torsion spring sector gear assembly and the body into the welding mechanism, and the welding mechanism welds the sector gear to the body.

[0016] The beneficial effects of the invention are: it can effectively prevent the needle gauge from being damaged during inspection, and after a defective product is detected, the upper and lower clamping blocks clamp both ends of the needle gauge, reducing the vibration of the needle gauge and ensuring that the needle gauge can be aligned and reset in time. Attached Figure Description

[0017] Figure 1 This is an overall schematic diagram of the electronic throttle body and sector gear assembly device provided for an embodiment of this application.

[0018] Figure 2 A schematic diagram of the torsion spring sector gear assembly mechanism of the electronic throttle body and sector gear assembly device provided in the embodiments of this application.

[0019] Figure 3 The side view of the torsion spring sector gear assembly mechanism of the electronic throttle body and sector gear assembly device provided in the embodiments of this application omits the pressure sector gear assembly.

[0020] Figure 4 For along Figure 3 Sectional view of AA.

[0021] Figure 5 A schematic diagram of the sector gear assembly mechanism of the electronic throttle body and sector gear assembly device provided in the embodiments of this application.

[0022] Figure 6 A schematic diagram of the welding mechanism of the electronic throttle body and sector gear assembly device provided in the embodiments of this application.

[0023] Figure 7 The schematic diagram of the welding mechanism of the electronic throttle body and sector gear assembly device provided in the embodiments of this application, omitting the No. 4 support, laser welding machine and telescopic air duct.

[0024] Figure 8 A schematic diagram of the valve plate adjustment assembly of the welding mechanism of the electronic throttle body and sector gear assembly device provided in the embodiments of this application.

[0025] Figure 9 A schematic diagram of the rotating clamping component of the welding mechanism of the electronic throttle body and sector gear assembly device provided in the embodiments of this application.

[0026] Figure 10 For along Figure 9 A sectional view of AA.

[0027] Figure 11 This is a schematic diagram of a torsion spring and a sector gear.

[0028] Figure 12 This is a schematic diagram of the torsion spring, sector gear, and body.

[0029] The components in the diagram are labeled as follows: 1. Frame; 2. Torsion spring sector tooth assembly mechanism; 3. Sector tooth body assembly mechanism; 4. Welding mechanism; 21. Support No. 1; 22. Material box No. 1 assembly; 23. Fixture No. 1; 24. Press sector tooth assembly; 25. Torsion spring end pushing assembly; 231. Disc; 232. Arc-shaped support plate; 233. Support seat; 230. Arc-shaped through hole; 241. Cylinder No. 1 A; 242. Press head No. 1; 251. Connecting shaft; 252. Fixture; 253. Motor No. 1; 254. Coupling; 255. Linear bearing No. 1; 256. Lifting shaft; 257. Lifting plate; 258. Push rod; 259. Lifting frame; 250. Cylinder B (No. 1); 560. Ribbon groove; 31. Tooling (No. 1); 32. Slide plate; 33. Linear module (No. 1); 34. Support (No. 2); 35. Linear guide rail (No. 2); 36. Slide block; 37. Linear module (No. 2); 38. Lifting seat; 39. Linear module (No. 3); 30. Torsion spring sector tooth transfer assembly; 301. Motor (No. 2); 302. Rotating shaft (No. 2); 303. Drive pulley; 304. Driven pulley; 305. Synchronous belt; 306. Floating connector; 307. Sleeve; 308. Connecting plate; 309, Cylinder No. 3; 310, Clamping plate; 41, Linear guide rail No. 4; 42, Tooling No. 4; 43, Linear module No. 4; 44, Welding assembly; 45, Valve plate adjustment assembly; 441, Support No. 4; 442, Laser welding machine; 443, Telescopic air duct; 444, Support No. 5; 445, L-shaped sliding plate; 446, Cylinder No. 5; 447, Spur rack; 448, Cylinder No. 6; 449, Rotary clamping component; 491, Flange; 492, Ball bearing; 493, Hollow shaft; 494, Gear; 495, Pressure cylinder; 496, Stepped screw. Wire; 497, Spring No. 1; 498, Lever; 4501, Seat No. 7; 4502, Seat No. 8; 4503, Cylinder No. 7; 4504, Connecting Frame; 4505, Linear Bearing No. 7; 4506, Rod No. 7; 4507, Displacement Sensor; 4508, Linear Module No. 8; 4509, Moving Seat; 4510, Spring No. 8; 4511, Push Rod; 100, Torsion Spring; 200, Sector Gear; 400, Valve Plate; 300, Housing; 201, Column; 202, Arc-shaped Gear; 203, Stop Rod; 500, Rotating Shaft; 600, Weld Point. Detailed Implementation

[0030] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0031] like Figure 1As shown, the first embodiment provided in this application is an electronic throttle body and sector gear assembly device, including a frame 1, and further including a torsion spring sector gear assembly mechanism 2, a sector gear body assembly mechanism 3 and a welding mechanism 4 disposed on the frame 1. The torsion spring sector gear assembly mechanism 2 is used to assemble the sector gear 200 with the torsion spring 100, the sector gear body assembly mechanism 3 is used to assemble the assembled torsion spring 100 and the sector gear 200 on the body, and the welding mechanism 4 is used to weld the sector gear 200 to the body.

[0032] It should be noted that, as Figure 12 As shown, the main body includes a housing 300, a rotating shaft 500 inside the housing 300, and a valve plate 400 connected to the rotating shaft 500. Welding involves welding the rotating shaft 500 to the sector gear 200. This application uses a PLC control system to automatically control the torsion spring sector gear assembly mechanism 2, the sector gear body assembly mechanism 3, and the welding mechanism 4.

[0033] In actual use, the individual torsion spring 100 and sector gear 200 are assembled in the torsion spring sector gear assembly mechanism 2 to form a torsion spring sector gear assembly. Then, the assembled torsion spring sector gear assembly is manually transferred to the sector gear body assembly mechanism 3 to complete the assembly of the torsion spring sector gear assembly and the body to form a semi-finished product. Subsequently, the semi-finished product is manually transferred to the welding mechanism 4 to weld the sector gear 200 to the two welding points 600 at the end of the rotating shaft 500.

[0034] The above design enables rapid assembly of the torsion spring 100, sector gear 200, and the main body. Compared with manual assembly, it is more efficient and precise. The entire device only requires manual transfer of the product, saving space compared to mechanical transfer mechanisms and reducing the overall size of the equipment.

[0035] Specifically: such as Figure 2 , Figure 3 and Figure 4 As shown, the torsion spring sector tooth assembly mechanism 2 includes a first bracket 21 mounted on the frame 1, a first material box assembly 22 mounted on the first bracket 21, a first fixture 23 mounted on the first bracket 21, a sector tooth pressing assembly 24 mounted on the first bracket 21, and a torsion spring end pushing assembly 25 mounted on the first bracket 21.

[0036] It should be noted that, as Figure 11 As shown, the sector gear 200 includes a column 201, an arc-shaped tooth 202 disposed on one side of the upper end of the column 201, and a stop bar 203 disposed at the lower end of the arc-shaped tooth 202 and parallel to the column 201. A groove is provided at the bottom of the main body. The two ends of the torsion spring 100 need to be abutted against the two sides of the stop bar 203 to fix the torsion spring 100. A guide slope is provided at the lower end of the stop bar 203 to facilitate the movement of the lower end of the torsion spring 100 from one side of the stop bar 203 to the other side along the guide slope when the lower end of the stop bar 203 rotates.

[0037] In actual use, the torsion spring 100 and sector gear 200 are taken out from the first material box. The torsion spring 100 is manually placed on the column 201 of the sector gear 200. At this time, the two ends of the torsion spring 100 are not abutted by the stop bar 203. Then, the pre-installed torsion spring 100 and sector gear 200 are manually placed on the first fixture 23. The sector gear pressing assembly 24 presses the upper end of the sector gear 200, and the torsion spring end pushing assembly 25 rotates and pushes the lower end of the torsion spring 100. After the torsion spring 100 rotates around the column 201, the upper end is torsionally generated by the stop bar 203. As the pushing continues, the torsion spring end pushing assembly 25 moves the lower end of the torsion spring 100 from one side of the stop bar 203 to the other side. Then, the torsion spring end pushing assembly 25 disengages from the torsion spring 100. At this time, the two ends of the torsion spring 100 abut against the two sides of the stop bar 203 respectively.

[0038] In the above design, the structural design and specific implementation of the torsion spring sector gear assembly mechanism 2 facilitate the effective assembly of the torsion spring 100 and the sector gear, ensuring that the torsion spring 100 has torque on the sector gear 200.

[0039] Specifically: such as Figure 2 As shown, the first fixture 23 includes a disc 231 mounted on a first support 21, an arc-shaped support plate 232 mounted on the disc 231, and a support seat 233 mounted on the disc 231 and concentric with the arc-shaped support plate 232. The disc 231 and the first support 21 are provided with an arc-shaped through hole 230 located between the arc-shaped support plate 232 and the support seat 233.

[0040] During actual assembly, the support seat 233 extends into the groove below the column 201, and the arc-shaped teeth 202 of the sector gear 200 are supported by the arc-shaped support plate 232. At this time, the end of the torsion spring 100 is located above the arc-shaped through hole 230.

[0041] In the above design, the structural design and specific implementation of the first fixture 23 can effectively realize the assembly of the sector gear 200 and the torsion spring 100.

[0042] Specifically: such as Figure 2As shown, the pressing fan tooth assembly 24 includes a first cylinder A241 mounted on a first bracket 21 and a first pressing head 242 fixedly mounted on the output end of the first cylinder A241. The first pressing head 242 is located above the first fixture 23. The torsion spring end pushing assembly 25 includes a connecting shaft 251, a lifting frame 259 slidably connected to the first bracket 21, a first cylinder B250 fixedly mounted on the first bracket 21 for driving the lifting frame 259 to rise and fall, a fixed frame 252 fixedly mounted below the first bracket 21, and a first motor 250 vertically fixedly mounted on the fixed frame 252. 53. A coupling 254 is installed on the output shaft of motor 253; a linear bearing 255 is installed vertically on bracket 21; a lifting shaft 256 is sleeved inside the linear bearing 255; a lifting plate 257 is coaxially fixed above the lifting shaft 256 and abuts against the upper end face of the lifting frame 259; and a push rod 258 is installed on the upper end face of the lifting plate 257. The connecting shaft 251 includes a prism and a cylinder coaxially installed at the lower end of the prism. The cylinder is coaxially fixedly connected to the coupling 254. The lifting shaft 256 is provided with a prism groove 560 that is slidably connected to the prism.

[0043] During actual assembly, the pre-installed sector gear 200 and torsion spring 100 are placed in fixture 23. Then, cylinder A241 drives pressure head 242 downward, pressing the upper surface of sector gear 200 from above, thus fixing sector gear 200. Subsequently, cylinder B250 drives lifting frame 259 upward, causing lifting frame 259 to move lifting plate 257, lifting shaft 256, and push rod 258 upward synchronously until push rod 258 moves to a height that can push the lower end of torsion spring 100. Then, motor 253 drives coupling 254 and connecting shaft 251 to rotate synchronously. Since the prism part of connecting shaft 251 cooperates with the prism groove 560 of lifting shaft 256, the rotation of connecting shaft 251 drives lifting shaft 256, lifting plate 257 and push rod 258 to rotate synchronously. When push rod 258 rotates, it pushes the lower end of torsion spring 100 along arc-shaped through hole 230 until the lower end of torsion spring 100 is pushed from one side to the other side of stop bar 203 along guide slope of stop bar 203. Then motor 253 stops driving and push rod 258 stops pushing the lower end of torsion spring 100. Then cylinder B250 drives lifting frame 259 to move down, so that lifting frame 259 drives lifting plate 257, lifting shaft 256 and push rod 258 to move down synchronously until push rod 258 disengages from torsion spring 100. Then, cylinder A241 drives pressure head 242 to reset, completing the assembly of torsion spring 100 and sector gear 200.

[0044] In the above design, the structural design and specific implementation of the torsion spring sector gear assembly mechanism 2 can effectively realize the assembly of the torsion spring 100 and the sector gear 200. Compared with manually turning the lower end of the torsion spring 100, it is more labor-saving, takes less time, and is more efficient.

[0045] Specifically: the first cylinder B250 drives the lifting frame 259 to lift the lifting plate 257 and the push rod 258; the first motor 253 drives the coupling 254 to rotate the connecting shaft 251, the lifting shaft 256, the lifting plate 257 and the push rod 258; the push rod 258 rotates along the arc-shaped through hole 230 to move the end of the torsion spring 100; the first cylinder B250 drives the lifting frame 259 to descend, causing the lifting plate 257 and the push rod 258 to descend, so that the push rod 258 disengages from the end of the torsion spring 100.

[0046] Specifically: such as Figure 5 As shown, the sector gear body assembly mechanism 3 includes a first linear guide rail arranged along the Y-axis on the frame 1, a slide plate 32 slidably arranged on the first linear guide rail, a first linear module 33 fixedly arranged on the frame 1 for driving the slide plate 32 to slide, a first tooling 31 arranged on the slide plate 32, a second support 34 arranged on the frame 1, a second linear guide rail 35 arranged along the X-axis on the second support 34, a slide block 36 slidably arranged on the second linear guide rail 35, a second linear module 37 fixedly arranged on the second support 34 for driving the slide block 36 to slide along the second linear guide rail 35, a third linear guide rail vertically arranged on the slide block 36, a lifting seat 38 slidably arranged on the third linear guide rail, and a third linear module 37 fixedly arranged on the slide block 36 for driving the lifting seat 38 to slide along the third linear guide rail. 9. A torsion spring sector gear transfer assembly 30 is provided on the slide block 36. The torsion spring sector gear transfer assembly 30 includes a second motor 301 and a second rotating shaft 302 vertically provided on the slide block 36, a driving pulley 303 provided on the rotating shaft of the second motor 301, a driven pulley 304 coaxially fixed on the second rotating shaft 302, a synchronous belt 305 that is connected to the driving pulley 303 and the driven pulley 304, a floating connector 306 provided at the lower end of the second rotating shaft 302, a sleeve 307 provided on the lower end face of the floating connector 306, a positioning pin vertically provided in the sleeve 307 for positioning the positioning hole on the upper end face of the sector gear 200, a connecting plate 308 provided on the outside of the sleeve 307, a third cylinder 309 horizontally provided on the connecting plate 308, and a clamping plate 310 provided at the output end of the third cylinder 309.

[0047] It should be noted that the first tooling 31 has a clamping assembly consisting of a cylinder and a connecting rod, which fixes the main body to the first tooling 31. The column 201 of the sector gear 200 is provided with a mounting hole for connection with the rotating shaft 500 of the main body.

[0048] In actual use, the operator places the main body on fixture 31 and places the sector teeth of torsion spring 100 on the sector tooth transfer assembly 30, so that the positioning pin is positioned with the positioning hole of sector gear 200. Cylinder 309 drives clamping plate 310 to fix the torsion spring sector tooth assembly. Then, linear module 33 drives slide plate 32 to move fixture 31 to the assembly position. Subsequently, linear module 37 drives slide block 36 to slide along linear guide rail 35 to above the main body, and linear module 39 drives lifting seat 38 to descend along linear guide rail 3, placing the torsion spring sector tooth assembly into the main body, so that the main body's rotating shaft 500 extends into the mounting hole. Then, cylinder 309 drives clamping plate 310 to release the torsion spring sector tooth assembly. Subsequently, the second motor 301 drives the active pulley 303 to rotate, which, under the drive of the synchronous belt 305, drives the driven pulley 304 and the second rotating shaft 302 to rotate synchronously. This causes the floating connector 306 and the sleeve 307 to drive the sector gear 200 to rotate synchronously, so that the sector gear 200 rotates to the predetermined position. Then, the second linear module 37 drives the slide 36 to rise, and the first linear module 33 drives the slide plate 32 to be removed. The assembled torsion spring 100, sector gear 200 and the main body are then manually removed.

[0049] In the above design, the structural design and specific implementation of the sector tooth assembly mechanism 3 can effectively realize the assembly of the torsion spring sector tooth assembly with the body.

[0050] Specifically: such as Figure 6 As shown, the welding mechanism 4 includes a fourth linear guide rail 41 arranged along the Y-axis on the frame 1, a fourth tooling 42 slidably arranged on the fourth linear guide rail 41, a fourth linear module 43 arranged on the frame 1 for driving the fourth tooling 42 to slide along the fourth linear guide rail 41, a welding assembly 44 arranged on the frame 1, and a valve plate adjustment assembly 45 arranged on the frame 1.

[0051] During actual welding, the assembled torsion spring sector gear assembly and the main body are placed on tool 42. Then, tool 42 is moved to the welding position by linear module 43. Before welding, valve plate adjustment assembly 45 adjusts the gap between valve plate 400 and housing. After adjustment, valve plate adjustment assembly 45 is withdrawn. Then, welding assembly 44 welds the two welding points 600 of shaft 500 and sector gear 200.

[0052] In the above design, the structural design and specific implementation of the welding mechanism 4 enable automatic welding of the rotating shaft 500 and the sector gear 200.

[0053] Specifically: such as Figure 6 and Figure 7 and Figure 9 and Figure 10As shown, the welding assembly 44 includes a fourth support 441 mounted on the frame 1, a laser welding machine 442 mounted on the fourth support 441, a telescopic duct 443, a fifth support 444 mounted on the frame 1, a fifth linear guide rail mounted vertically on the fifth support 444, an L-shaped slide plate 445 slidably mounted on the fifth linear guide rail, a fifth cylinder 446 mounted on the fifth support 444 for driving the L-shaped slide plate 445 to rise and fall, a sixth linear guide rail mounted along the Y-axis on the L-shaped slide plate 445, a rack 447 slidably mounted on the sixth linear guide rail, a sixth cylinder 448 mounted on the L-shaped slide plate 445 for driving the rack 447 to slide along the sixth linear guide rail, and a rotating clamping member 449 mounted on the L-shaped slide plate 445. The telescopic duct 443 is connected at both ends to the L-shaped slide plate 445 and the welding machine, respectively. The L-shaped slide plate 445 has a vertical through hole. The rotating clamping member 449... Component 449 includes a flange 491 disposed on a vertical through hole, a ball bearing 492 whose outer ring abuts against the inner wall of the flange 491, a hollow shaft 493 connected to the inner ring of the ball bearing 492, a gear 494 coaxially fixed on the hollow shaft 493, a pressure cylinder 495 concentric with the hollow shaft 493, a stepped screw 496 threadedly connected to the hollow shaft 493 and slidably connected to the pressure cylinder 495, and a [missing information - likely a type of screw or bolt]. A first spring 497 and a lever 498 are fixedly connected to the hollow shaft 493 and slidably connected to the pressure cylinder 495. The hollow shaft 493 has a step inside. The upper end of the first spring 497 abuts against the step. The pressure cylinder 495 has a second through hole for welding machine avoidance. The hollow shaft 493 has a first through hole. The first through hole, the second through hole and the telescopic air duct 443 are connected. An air outlet is provided on one side of the telescopic air duct 443.

[0054] It should be noted that the points where the sector gear 200 needs to be welded to the turntable are two different points; for ease of description, both points will be referred to as weld points 600. The two weld points 600 are located on the outer edge of the rotating part corresponding to the two protrusions of the sector gear 200.

[0055] Before actual welding, the valve plate adjustment assembly 45 adjusts the position of the valve plate 400. After the valve plate 400 is adjusted, the first weld point 600 is welded: the fifth cylinder 446 drives the L-shaped slide plate 445 to move down along the fifth linear guide rail, so that the rotating clamping part 449 applies pressure to the upper end of the sector gear 200. During this process, the first spring 497 is compressed. Then, the welding beam of the laser welding machine 442 passes through the telescopic air duct 443, the first through hole and the second through hole for welding. After the laser welding machine 442 welds the first weld point 600 between the rotating shaft 500 and the sector gear 200, the sector gear 200 and the rotating shaft 500 can rotate synchronously. Then, the valve plate adjustment assembly 45 retracts and disengages from the valve plate 400. Then, the sixth cylinder 448 drives the spur rack 447 to move along the sixth linear guide rail. This causes the rotating clamping component 449 to rotate synchronously. That is, the rack 447 drives the hollow shaft 493 to rotate through meshing with the gear 494. The hollow shaft 493 drives the pressure cylinder 495 and the lever 498 to rotate synchronously through the stepped screw 496. This causes the lever 498 to move the end of the sector gear 200. Since the sector gear 200 and the rotating shaft 500 have been initially fixed by the first weld point 600 and can rotate synchronously, the lever 498 moves the sector gear 200 to drive the rotating shaft 500 and the valve plate 400 to rotate synchronously. The second weld point 600 of the sector gear 200 and the rotating shaft 500 rotates to the area below the laser beam emitted by the laser welding machine 442. The laser welding machine 442 welds the second weld point 600, completing the welding of the sector gear 200 and the rotating shaft 500.

[0056] In the above design, the structural design and specific implementation of the welding component 44 can utilize the rotating clamping member 449 to elastically clamp the sector gear 200. While clamping the sector gear 200, the first spring 497 reduces the impact of the pressure cylinder 495 on the sector gear 200, thereby achieving the initial spot welding of the sector gear 200 and the rotating shaft 500. Subsequently, through the cooperation of the rack 447, the sixth cylinder 448, and the rotating clamping member 449, the sector gear 200 can be driven to rotate synchronously with the rotation, maintaining the laser welding machine 442 in a fixed state to achieve the formation of the annular weld.

[0057] Specifically: such as Figure 6 , Figure 7 and Figure 8As shown, the valve plate adjustment assembly 45 includes a No. 7 seat 4501 and a No. 8 seat 4502 mounted on the frame 1, a No. 7 cylinder 4503 mounted on the No. 7 seat 4501 along the Y-axis, a connecting frame 4504 fixedly mounted on the output end of the No. 7 cylinder 4503, two No. 7 linear bearings 4505 arranged along the X-axis and extending along the Y-axis mounted on the connecting frame 4504, two No. 7 rods 4506 sleeved in the No. 7 linear bearings 4505, two displacement sensors 4507 fixedly mounted on the connecting frame 4504 corresponding to the two No. 7 rods 4506 respectively, and a No. 8 linear module 450 mounted on the No. 8 seat 4502 along the Y-axis. 8. A movable seat 4509 fixedly mounted on the No. 8 linear module 4508, two No. 8 linear bearings arranged along the X direction and extending along the Y direction mounted on the movable seat 4509, two push rods 4511 respectively sleeved in the No. 8 linear bearings, and No. 8 springs 4510 whose two ends respectively abut against one end of the push rod 4511 and the movable seat 4509. The No. 7 rod 4506 corresponds vertically to the push rod 4511. The No. 4 tooling 42 includes a tooling body and a pressing component mounted on the tooling body to press the product. The tooling body is provided with a No. 7 through hole along the Y-axis direction. The No. 7 rod 4506 and the push rod 4511 extend into the No. 7 through hole.

[0058] It should be noted that there is an installation allowance between the rotating shaft 500 and the housing. In order to control the sealing between the valve plate 400 and the housing as much as possible, the valve plate adjustment assembly 45 is designed to move the valve plate 400 and the rotating shaft 500 within the installation allowance to adjust the gap between the valve plate 400 and the housing. After calculation, it will not cause the valve plate 400 and the housing 300 to be unable to rotate.

[0059] During actual adjustment of the valve plate 400, after the torsion spring sector gear assembly and the main body are pre-assembled and placed on the tooling body, the outer shell 300 of the main body is pressed tightly by the clamping component, thereby ensuring the fixation of the product outer shell 300. At this time, the valve plate 400 corresponds to the No. 7 through hole, and the valve plate 400 is located on one side of the No. 7 through hole, while the No. 7 rod 4506 and the push rod 4511 are located on the other side of the No. 7 through hole. The valve plate 400 is rotated symmetrically into two parts, and the two No. 7 rods 4506 and the two push rods 4511 are also symmetrical about the rotation axis 500. After the valve plate 400 adjustment begins, the moving seat 4509 is driven by the No. 8 linear module 4508 to move towards one side of the valve plate 400. This causes the two push rods 4511 to push the valve plate 400 portions on both sides of the rotating shaft 500 respectively. The No. 8 spring 4510 is compressed, adjusting the gap between the valve plate 400 and the housing. Simultaneously, the No. 7 cylinder 4503 drives the connecting frame 4504 to move towards one side of the valve plate 400. The two No. 7 rods 4506 contact the valve plates 400 on both sides of the rotating shaft 500. After contact, the No. 7 rods 4506 slide along the No. 7 linear bearing 4505. The two displacement sensors 4507 sense the displacement of the two No. 7 rods 4506, and determine whether the angle of the valve plate 400 is qualified based on the displacement. After the valve plate 400 adjustment is completed, the first weld point 600 is welded. After the first weld point 600 is welded, the valve plate adjustment assembly 45 is disengaged, allowing the valve plate 400 to rotate with the rotating shaft 500.

[0060] In the above design, the structural design and specific implementation of the valve plate adjustment assembly 45 can effectively adjust the gap between the valve plate 400 and the housing, ensuring good sealing between the valve plate 400 and the housing after welding.

[0061] The second embodiment provided in this application is a method for assembling an electronic throttle body and a sector gear. Using the aforementioned electronic throttle body and sector gear assembly device, the method includes the following steps: S1, manually placing the torsion spring 100 and sector gear 200 in the torsion spring sector gear assembly mechanism 2 after pre-assembly; S2, the torsion spring sector gear assembly mechanism 2 moves the end of the torsion spring 100 to fix the torsion spring 100 onto the sector gear 200, forming a torsion spring sector gear assembly; S3, manually placing the body and the torsion spring sector gear assembly into the sector gear body assembly mechanism 3, and then the sector gear body assembly mechanism 3 assembles the torsion spring sector gear assembly onto the body; S4, manually placing the assembled torsion spring sector gear assembly and the body into the welding mechanism 4, whereby the welding mechanism 4 welds the sector gear 200 to the body.

[0062] The above design enables effective assembly of the torsion spring 100, the sector gear 200, and the main body.

[0063] In further detail, it should be understood that the above description is only a specific embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An electronic throttle body and sector gear assembly device, comprising a frame (1), characterized in that: It also includes a torsion spring sector gear assembly mechanism (2), a sector gear body assembly mechanism (3), and a welding mechanism (4) set on the frame (1). The torsion spring sector gear assembly mechanism (2) is used to assemble the sector gear (200) with the torsion spring (100). The sector gear body assembly mechanism (3) is used to assemble the assembled torsion spring (100) and the sector gear (200) on the body. The welding mechanism (4) is used to weld the sector gear (200) to the body. The welding mechanism (4) includes a fourth linear guide rail (41) arranged along the Y-axis on the frame (1), a fourth tooling (42) slidably arranged on the fourth linear guide rail (41), a fourth linear module (43) arranged on the frame (1) for driving the fourth tooling (42) to slide along the fourth linear guide rail (41), a welding assembly (44) arranged on the frame (1), and a valve plate adjustment assembly (45) arranged on the frame (1). The valve plate adjustment assembly (45) includes a No. 7 seat (4501) and a No. 8 seat (4502) mounted on the frame (1), a No. 7 cylinder (4503) mounted on the No. 7 seat (4501) along the Y-axis, a connecting frame (4504) fixedly mounted on the output end of the No. 7 cylinder (4503), two No. 7 linear bearings (4505) arranged along the X-axis and extending along the Y-axis mounted on the connecting frame (4504), two No. 7 rods (4506) sleeved in the No. 7 linear bearings (4505), two displacement sensors (4507) fixedly mounted on the connecting frame (4504) corresponding to the two No. 7 rods (4506) respectively, and a No. 8 linear module (4507) mounted on the No. 8 seat (4502) along the Y-axis. 508), a movable seat (4509) fixedly mounted on the No. 8 linear module (4508), two No. 8 linear bearings arranged along the X direction and extending along the Y direction on the movable seat (4509), two push rods (4511) respectively sleeved in the No. 8 linear bearings, and No. 8 springs (4510) whose two ends respectively abut against one end of the push rod (4511) and the movable seat (4509), the No. 7 rod (4506) and the push rod (4511) are vertically corresponding, the No. 4 tooling (42) includes a tooling body and a pressing component set on the tooling body to press the product, the tooling body is provided with a No. 7 through hole along the Y axis direction, and the No. 7 rod (4506) and the push rod (4511) extend into the No. 7 through hole.

2. The electronic throttle body and sector gear assembly device according to claim 1, characterized in that: The torsion spring sector tooth assembly mechanism (2) includes a first bracket (21) set on the frame (1), a first material box assembly (22) set on the first bracket (21), a first fixture (23) set on the first bracket (21), a pressing sector tooth assembly (24) set on the first bracket (21), and a torsion spring end pushing assembly (25) set on the first bracket (21).

3. The electronic throttle body and sector gear assembly device according to claim 2, characterized in that: The first fixture (23) includes a disc (231) mounted on a first support (21), an arc-shaped support plate (232) mounted on the disc (231), and a support seat (233) mounted on the disc (231) and concentric with the arc-shaped support plate (232). The disc (231) and the first support (21) are provided with an arc-shaped through hole (230) located between the arc-shaped support plate (232) and the support seat (233).

4. The electronic throttle body and sector gear assembly device according to claim 3, characterized in that: The pressing fan tooth assembly (24) includes a first cylinder A (241) mounted on a first bracket (21) and a first pressing head (242) fixedly mounted on the output end of the first cylinder A (241), the first pressing head (242) being located above the first fixture (23); the torsion spring end pushing assembly (25) includes a connecting shaft (251), a lifting frame (259) slidably connected to the first bracket (21), a first cylinder B (250) fixedly mounted on the first bracket (21) for driving the lifting frame (259) to rise and fall, a fixed frame (252) fixedly mounted below the first bracket (21), and a first motor ( 253), a coupling (254) set on the output shaft of motor (253), a linear bearing (255) set vertically on bracket (21), a lifting shaft (256) sleeved in the linear bearing (255), a lifting plate (257) coaxially fixed above the lifting shaft (256) and abutting against the upper end face of the lifting frame (259), and a push rod (258) set on the upper end face of the lifting plate (257). The connecting shaft (251) includes a prism and a cylinder coaxially set at the lower end of the prism. The cylinder is coaxially fixedly connected to the coupling (254). The lifting shaft (256) is provided with a prism groove (560) that slides with the prism.

5. The electronic throttle body and sector gear assembly device according to claim 4, characterized in that: The first cylinder B (250) drives the lifting frame (259) to lift the lifting plate (257) and push rod (258) up and down. The first motor (253) drives the coupling (254) to rotate the connecting shaft (251), lifting shaft (256), lifting plate (257) and push rod (258). The push rod (258) rotates along the arc-shaped through hole (230) to push the end of the torsion spring (100). The first cylinder B (250) drives the lifting frame (259) to descend, causing the lifting plate (257) and push rod (258) to descend, causing the push rod (258) to disengage from the end of the torsion spring (100).

6. The electronic throttle body and sector gear assembly device according to claim 1, characterized in that: The sector gear assembly mechanism (3) includes a first linear guide rail arranged along the Y-axis on the frame (1), a slide plate (32) slidably arranged on the first linear guide rail, a first linear module (33) fixedly arranged on the frame (1) for driving the slide plate (32) to slide, a first tooling (31) arranged on the slide plate (32), a second bracket (34) arranged on the frame (1), a second linear guide rail (35) arranged along the X-axis on the second bracket (34), a slide block (36) slidably arranged on the second linear guide rail (35), a second linear module (37) fixedly arranged on the second bracket (34) for driving the slide block (36) to slide along the second linear guide rail (35), a third linear guide rail arranged vertically on the slide block (36), a lifting seat (38) slidably arranged on the third linear guide rail, and a third linear module (39) fixedly arranged on the slide block (36) for driving the lifting seat (38) to slide along the third linear guide rail. A torsion spring sector tooth transfer assembly (30) on the slide (36) includes a second motor (301) and a second rotating shaft (302) vertically mounted on the slide (36), a drive pulley (303) mounted on the rotating shaft of the second motor (301), a driven pulley (304) coaxially fixed on the second rotating shaft (302), and a synchronous belt (305) drivingly connected to the drive pulley (303) and the driven pulley (304). A floating connector (306) is located at the lower end of the second rotating shaft (302), a sleeve (307) is located on the lower end face of the floating connector (306), a positioning pin is vertically located in the sleeve (307) for positioning the positioning hole on the upper end face of the sector gear (200), a connecting plate (308) is located on the outside of the sleeve (307), a third cylinder (309) is horizontally located on the connecting plate (308), and a clamping plate (310) is located at the output end of the third cylinder (309).

7. The electronic throttle body and sector gear assembly device according to claim 1, characterized in that: The welding assembly (44) includes a No. 4 support (441) mounted on the frame (1), a laser welding machine (442) mounted on the No. 4 support (441), a telescopic air duct (443), a No. 5 support (444) mounted on the frame (1), a No. 5 linear guide rail mounted vertically on the No. 5 support (444), an L-shaped slide plate (445) slidably mounted on the No. 5 linear guide rail, a No. 5 cylinder (446) mounted on the No. 5 support (444) for driving the L-shaped slide plate (445) to rise and fall, and a Y-axis... The L-shaped slide plate (445) includes a No. 6 linear guide rail, a rack (447) slidably mounted on the No. 6 linear guide rail, a No. 6 cylinder (448) mounted on the L-shaped slide plate (445) for driving the rack (447) to slide along the No. 6 linear guide rail, and a rotating clamping member (449) mounted on the L-shaped slide plate (445). The telescopic air duct (443) is connected at both ends to the L-shaped slide plate (445) and the welding machine, respectively. The L-shaped slide plate (445) has a vertical through hole. The rotating clamping member (449)... 49) Includes a flange (491) disposed on a vertical through hole, a ball bearing (492) whose outer ring abuts against the inner wall of the flange (491), a hollow shaft (493) connected to the inner ring of the ball bearing (492), a gear (494) coaxially fixed on the hollow shaft (493), a pressure cylinder (495) concentric with the hollow shaft (493), a stepped screw (496) threadedly connected to the hollow shaft (493) and slidably connected to the pressure cylinder (495), and two ends connected to the pressure cylinder (495) and the hollow shaft (493) respectively. The first spring (497) is fixedly connected to the hollow shaft (493) and slidably connected to the pressure cylinder (495). The hollow shaft (493) has a step inside. The upper end of the first spring (497) abuts against the step. The pressure cylinder (495) is provided with a second through hole for welding machine avoidance. The hollow shaft (493) is provided with a first through hole. The first through hole, the second through hole and the telescopic air duct (443) are connected. The telescopic air duct (443) has an air outlet on one side.

8. A method for assembling and welding an electronic throttle body and a sector gear, using the electronic throttle body and sector gear assembly device as described in any one of claims 1 to 7, characterized in that: The process includes the following steps: S1, the torsion spring (100) and sector gear (200) are pre-assembled and placed in the torsion spring sector gear assembly mechanism (2); S2, the torsion spring sector gear assembly mechanism (2) moves the end of the torsion spring (100) to fix the torsion spring (100) on the sector gear (200) to form the torsion spring (100) sector gear assembly; S3, the body and the torsion spring (100) sector gear assembly are placed in the sector gear body assembly mechanism (3), and then the sector gear body assembly mechanism (3) assembles the torsion spring (100) sector gear assembly on the body; S4, the assembled torsion spring (100) sector gear assembly and the body are placed in the welding mechanism (4), and the welding mechanism (4) welds the sector gear (200) to the body.

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