CN107498200B - Laser welding tool for valve body and sector gear of electronic throttle valve - Google Patents
Laser welding tool for valve body and sector gear of electronic throttle valve Download PDFInfo
- Publication number
- CN107498200B CN107498200B CN201710891635.9A CN201710891635A CN107498200B CN 107498200 B CN107498200 B CN 107498200B CN 201710891635 A CN201710891635 A CN 201710891635A CN 107498200 B CN107498200 B CN 107498200B
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- Prior art keywords
- positioning
- plate
- sector gear
- pressing plate
- throttle valve
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/70—Auxiliary operations or equipment
- B23K26/702—Auxiliary equipment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/20—Bonding
- B23K26/21—Bonding by welding
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Laser Beam Processing (AREA)
Abstract
The invention relates to an electronic valve body and sector gear laser welding tool which comprises a clamping part provided with a throttle valve body and a positioning installation part of a sector gear, wherein the clamping part is provided with a clamping cylinder, a positioning support plate and a pressing plate; the invention has the advantages that: the laser welding assembly of the sector gear component of the electronic throttle valve body is effectively completed, the laser welding quality of the sector gear component of the electronic throttle valve is guaranteed, the stability of the assembly is improved, the rate of sticking and clamping stagnation of the throttle valve body is reduced, and therefore the qualification rate of products is improved.
Description
Technical Field
The invention relates to an electronic throttle valve body assembly process technology, in particular to a laser welding tool for a valve body and a sector gear of an electronic throttle valve.
Background
The sector transmission gear of the valve body of the electronic throttle valve of the automobile is connected by laser welding, and currently, manufacturers of the electronic throttle valves in the world are in competition by adopting the laser welding gear instead of the traditional buckle connection, so that the competitiveness of the product in the international market is improved. The gear connection adopts the welding technology, so that the number of parts can be reduced, the gear connection quality can be improved, and the manufacturing cost of the throttle valve can be reduced. Compared with the traditional welding process, the laser welding of the gear is not needed to be carried out in vacuum, the welding deformation can be avoided, the gear after welding is not needed to be finished, the depth-to-width ratio of the welding seam can be up to 10:1 by laser welding, and the welding seam has comprehensive mechanical properties equivalent to or better than that of a base metal, so that the gear can transmit larger torque. In order to realize the connection of the sector gear assembly of the electronic throttle valve body and the throttle shaft on the assembly line, the connection of the sector gear assembly needs to be subjected to laser welding in real time after the sector gear assembly is correctly assembled. In this context, a tooling device suitable for laser welding is needed, and no tooling device is available at the present stage.
The invention discloses a tool for realizing connection of sector gear components on an electronic throttle assembly line by adopting laser welding. The tool is suitable for positioning and mounting the sector gear of the electronic throttle valve body, the electronic throttle valve body is positioned and clamped on the clamp body, the sector gear is positioned and sleeved on the gear positioning sleeve, the angle between the sector gear and the idle spring is adjusted through the rotating frame and the positioning rod above, the sector gear and the idle spring are mounted in place through the movable pressing plate, and the laser welding machine can weld the sector gear assembly.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a laser welding tool for an electronic throttle valve body and a sector gear.
The aim of the invention is achieved by the following technical scheme:
the electronic throttle valve body and sector gear laser welding tool comprises a throttle valve body clamping mechanism and a sector gear mounting mechanism, wherein the throttle valve body clamping mechanism is arranged below the sector gear mounting mechanism; the throttle body is clamped in the throttle body clamping mechanism, and a sector gear and an idle spring are arranged in the sector gear mounting mechanism; the gear mounting mechanism comprises a movable pressing plate and a rotating frame, wherein the movable pressing plate is of an inverted L shape, namely comprises a pressing plate horizontal part and a pressing plate vertical part, a buffer spring which is vertically arranged is arranged below the pressing plate horizontal part, the pressing plate vertical part is fixed on a sliding block A, the sliding block A is mounted on a sliding guide rail A in a matched mode, the sliding guide rail A is vertically arranged, the pressing plate vertical part is arranged on one side of the sliding guide rail A, a positioning support plate A is vertically arranged on the other side of the sliding guide rail A, a positioning air cylinder unit is fixed on the positioning support plate A, the positioning air cylinder unit comprises a positioning air cylinder A and a positioning air cylinder B, an output shaft of the positioning air cylinder A is connected with a positioning pin A, an output shaft of the positioning air cylinder B is connected with the positioning pin B, a plurality of positioning through holes are formed in the horizontal direction in the movable support plate A and the pressing plate vertical part, and the positioning pin A and the positioning pin B are matched with the positioning through holes in size; the device comprises a pressing plate, a rotating frame, a rotating handle, a gear positioning sleeve, a fan-shaped gear, an idle spring, a throttle valve body, a positioning support plate B, a jack A, a jack B and a movable positioning rod, wherein the mounting hole is formed in the horizontal part of the pressing plate in the vertical direction, the rotating frame capable of moving up and down is arranged in the mounting hole, the rotating handle is arranged at the upper end of the rotating frame, the lower end of the rotating frame penetrates through the mounting hole, the gear positioning sleeve is fixed at the lower end of the rotating frame, the fan-shaped gear is sleeved with the gear, the idle spring is arranged below the fan-shaped gear, the idle spring corresponds to the throttle valve body up and down, the positioning support plate B is fixed on the upper surface of the horizontal part of the pressing plate, the jack A is horizontally arranged in the middle of the rotating frame, the jack B is arranged on the positioning support plate B, and the movable positioning rod is arranged in the jack A and the jack B.
The lower end of the rotating frame is provided with a positioning bulge, a gear positioning sleeve is arranged below the positioning bulge, and the sector gear is fixed on the gear positioning sleeve through a locking screw 11.
The upper end of the positioning support plate B is fixedly provided with a limiting plate, and the limiting plate is provided with a limiting adjusting screw.
The throttle body clamping mechanism comprises a bottom plate, a clamp plate and a clamping cylinder, wherein the clamp plate is arranged on the bottom plate, the clamp plate is positioned under the movable clamp plate, the clamping cylinder is fixed on the side face of the clamp plate, an output shaft of the clamping cylinder is connected with a positioning pressing plate which is arranged opposite to the clamp plate, and the throttle body is placed between the positioning pressing plate and the clamp plate.
The angle adjusting device is characterized in that an angle adjusting plate is arranged on the side portion of the clamp plate, a sliding guide rail B is arranged on the side portion of the angle adjusting plate perpendicular to the direction of the clamp plate, the angle adjusting plate is fixed on a sliding block B, the sliding block B and the sliding guide rail B are mounted in a matched mode, a rod perpendicular to the sliding guide rail B is horizontally arranged on the sliding block B, an angle adjusting cylinder is arranged on one side of the sliding guide rail B in a parallel direction, and an output shaft of the angle adjusting cylinder is connected with the rod of the sliding block B.
And a pressing-in cylinder is arranged on one side of the sliding block A, and an output shaft of the pressing-in cylinder is fixed on the sliding block A.
The clamp body is used for installing and positioning the electronic throttle body, the gear is positioned by the gear positioning sleeve, the gear and the idle spring are adjusted to a proper angle by the rotating frame, the gear and the idle spring are installed in place by the movable pressing plate A, and the gear can be welded by the laser welding device.
The invention has the following advantages:
1. the rotation angle of the electronic throttle valve piece is controlled within the process requirement range, and the throttle valve piece of the electronic throttle valve body is adjusted to a required angle through the angle adjusting cylinder working driving angle adjusting plate.
2. The gear is positioned through the gear positioning sleeve, the rotating frame adjusts the angle of the gear and the idle spring, the pressing cylinder is pressed to drive the movable pressing plate to press the sector gear and the idle spring into the valve body, and the gear assembly is effectively assembled.
3. The assembly and laser welding of the sector gear assembly of the electronic throttle valve body are facilitated.
4. The angle of the throttle valve is controlled through the angle adjusting cylinder, so that the high idle speed flow of the electronic throttle valve is effectively controlled.
5. In actual production, the invention improves the qualification rate of the product from 87-92% to 92-98%.
Drawings
FIG. 1 is a schematic diagram of a laser welding tool for an electronic throttle valve body and a sector gear;
FIG. 2 is a schematic diagram of a top view structure of an electronic throttle valve body and sector gear laser welding tool;
FIG. 3 is a schematic diagram of an electronic throttle valve body;
FIG. 4 is a schematic diagram of an idle spring configuration;
in the figure, a 1-positioning pressing plate B, a 2-bottom plate, a 3-clamping cylinder, a 4-clamp plate, a 5-angle adjusting plate, a 6-idle spring, a 7-sector gear, an 8-gear positioning sleeve, a 9-positioning rod, a 10-rotating frame, an 11-locking screw, a 12-moving pressing plate A, a 13-buffer spring, a 14-sliding guide A, a 15-positioning pin A, a 16-positioning cylinder unit, a 17-positioning pin B, a 18-positioning support plate A,19, a sliding guide B, a 20-angle adjusting cylinder, a 21-pressing cylinder, a 22-limit adjusting screw, a 23-positioning support plate B, a 24-sector gear assembly, a 25-throttle shaft, a 26-idle spring, and a 27-throttle body
Detailed Description
The present invention will be further described with reference to the accompanying drawings, but the scope of the present invention is not limited to the following.
As shown in fig. 1-4, the name is an electronic throttle valve body and sector gear laser welding tool, which comprises a throttle valve body clamping mechanism and a sector gear mounting mechanism, wherein the throttle valve body clamping mechanism is arranged below the sector gear mounting mechanism; the throttle body is clamped in the throttle body clamping mechanism, and a sector gear 7 and an idle spring 6 are arranged in the sector gear mounting mechanism; the gear mounting mechanism comprises a movable pressing plate A12 and a rotating frame 10, wherein the movable pressing plate A12 is in an inverted L shape and comprises a pressing plate horizontal part and a pressing plate vertical part, a buffer spring 13 which is vertically arranged is arranged below the pressing plate horizontal part, the pressing plate vertical part is fixed on a sliding block A, the sliding block A is mounted on a sliding guide A14 in a matched mode, the sliding guide A14 is vertically arranged, the pressing plate vertical part is arranged on one side of the sliding guide A14, a positioning support plate A18 is vertically arranged on the other side of the sliding guide A14, a positioning cylinder unit 16 is fixed on the positioning support plate A18, the positioning cylinder unit 16 comprises a positioning cylinder A and a positioning cylinder B, an output shaft of the positioning cylinder A is connected with a positioning pin A15, an output shaft of the positioning cylinder B is connected with a positioning pin B17, a plurality of positioning through holes are formed in the horizontal direction in the positioning support plate A18 and the pressing plate vertical part, and the positioning pin A15 and the positioning pin B17 are matched with the positioning through holes in size; the device comprises a pressing plate, a rotating frame 10, a rotating handle, a gear positioning sleeve 8, a sector gear 7, an idle spring 6, a positioning support plate B23, a jack A, a jack B, a movable positioning rod 9 and a positioning rod B, wherein the mounting hole is formed in the horizontal part of the pressing plate in the vertical direction, the rotating frame 10 capable of moving up and down is arranged in the mounting hole, the rotating handle is arranged at the upper end of the rotating frame 10, the lower end of the rotating frame 10 penetrates through the mounting hole, the gear positioning sleeve 8 is fixedly arranged at the lower end of the rotating frame 10, the sector gear 7 is sleeved on the gear positioning sleeve 8, the idle spring 6 is arranged below the sector gear 7, the idle spring 6 corresponds to the throttle body in the vertical direction, the positioning support plate B23 is fixedly arranged on the upper surface of the horizontal part of the pressing plate, and the jack A is horizontally arranged in the middle of the rotating frame 10.
The lower end of the rotating frame 10 is provided with a positioning bulge, a gear positioning sleeve 8 is arranged below the positioning bulge, and the sector gear 7 is fixed on the gear positioning sleeve 8 through a locking screw 11.
The upper end of the positioning support plate B23 is fixedly provided with a limiting plate, and the limiting plate is provided with a limiting adjusting screw 22.
The throttle body clamping mechanism comprises a bottom plate 2, a clamp plate 4 and a clamping cylinder 3, wherein the clamp plate 4 is arranged on the bottom plate 2, the clamp plate 4 is positioned under the movable pressing plate A12, the clamping cylinder 3 is fixed on the side face of the clamp plate 4, an output shaft of the clamping cylinder 3 is connected with a positioning pressing plate B1 which is arranged opposite to the clamp plate 4, and a throttle body is placed between the positioning pressing plate B1 and the clamp plate 4.
The angle adjusting plate 5 is placed on the other side portion of the clamp plate 4, the sliding guide rail B19 is placed on the side portion of the angle adjusting plate 5 perpendicular to the direction of the clamp plate 4, the angle adjusting plate 5 is fixed on the sliding block B, the sliding block B and the sliding guide rail B19 are mounted in a matched mode, a rod perpendicular to the sliding guide rail B19 is horizontally arranged on the sliding block B, the angle adjusting cylinder 20 is placed on one side of the sliding guide rail B19 in a parallel mode, and an output shaft of the angle adjusting cylinder 20 is connected with the rod of the sliding block B.
A pressing cylinder 21 is arranged on one side of the sliding block A, and an output shaft of the pressing cylinder 21 is fixed on the sliding block.
The working process of the invention is as follows: the electronic throttle valve body is installed on a clamp plate 4 for positioning installation, the electronic throttle valve body is clamped and fixed through a clamping cylinder 3 and a positioning pressing plate 1, an idle spring 6 is placed in the electronic throttle valve body after clamping, a sector gear 7 is placed in a gear positioning sleeve 8, and the sector gear 7 is positioned through the gear positioning sleeve 8; the gear positioning sleeve 8 is positioned in a hole of the movable pressing plate A12, the boss above the gear positioning sleeve 8 is used for positioning, the movable pressing plate A12 is pressed down for a certain distance, the positioning pin A15 is used for positioning the gear positioning sleeve, the sector gear 7 and the idle spring 6 are adjusted to required angles by twisting the rotating frame 10 for a certain angle, and the positioning rod 9 is inserted into the holes of the rotating frame 10 and the positioning support plate B (23) to circumferentially position the idle spring 6 and the sector gear 7; the movable pressing plate A12 is pressed down for a distance again, the positioning cylinder B pushes the positioning pin B17 to position the movable pressing plate A12, the idle spring 6 is continuously compressed, the limit support leg at the upper end enters the groove of the limit support leg, then the positioning rod 9 is moved out of the hole of the positioning support plate B23, and the rotating frame 10 and the positioning rod 9 are moved away; under the action of restoring force of the idle spring 6, the upper limiting support leg contacts with the body, namely the idle spring 6 is assembled in place, the pressing cylinder 21 drives the movable pressing plate A12 to continuously press downwards, the sector gear 7 can be pressed into the throttle shaft, the rotating frame 10 and the positioning rod 9 are moved away, the laser welding machine can weld the sector gear 7 in the hole after the rotating frame A12 is moved away, the angle adjusting cylinder 20 drives the sliding block B and the angle adjusting plate 5 to move, the end face of the front end of the angle adjusting plate 5 has an angle of thirteen degrees, and the front end of the angle adjusting plate 5 is propped against the end face of the throttle plate, so that the throttle plate rotates around the throttle shaft 25 to the same angle of thirteen degrees as the front end face of the angle adjusting plate 5.
Claims (4)
1. An electronic throttle valve body, sector gear laser welding frock, its characterized in that: the throttle valve comprises a throttle valve body clamping mechanism and a sector gear mounting mechanism, wherein the throttle valve body clamping mechanism is arranged below the sector gear mounting mechanism;
the throttle body is clamped in the throttle body clamping mechanism, and a sector gear (7) and an idle spring (6) are arranged in the sector gear mounting mechanism; the gear mounting mechanism comprises a movable pressing plate A (12) and a rotating frame (10), wherein the movable pressing plate A (12) is in an inverted L shape and comprises a pressing plate horizontal part and a pressing plate vertical part, a buffer spring (13) which is vertically arranged below the pressing plate horizontal part is arranged below the pressing plate horizontal part, the pressing plate vertical part is fixed on a sliding block A, the sliding block A is mounted on a sliding guide rail A (14) in a matched mode, the sliding guide rail A (14) is vertically arranged, the pressing plate vertical part is arranged on one side of the sliding guide rail A (14), a positioning support plate A (18) is vertically arranged on the other side of the sliding guide rail A (14), a positioning air cylinder unit (16) is fixed on the positioning support plate A (18), the positioning air cylinder unit (16) comprises a positioning air cylinder A and a positioning air cylinder B, an output shaft of the positioning air cylinder A is connected with a positioning pin A (15), an output shaft of the positioning air cylinder B is connected with a positioning pin B (17), a plurality of positioning through holes are formed in the horizontal direction in the vertical part of the positioning support plate A (18) and the pressing plate vertical part, and the positioning through holes are matched with each other in size; a mounting hole is formed in the horizontal part of the pressing plate along the vertical direction, a rotating frame (10) capable of moving up and down is arranged in the mounting hole, a rotating handle is arranged at the upper end of the rotating frame (10), the lower end of the rotating frame (10) penetrates through the mounting hole, a gear positioning sleeve (8) is fixed at the lower end of the rotating frame (10), a sector gear (7) is sleeved on the gear positioning sleeve (8), an idle spring (6) is arranged below the sector gear (7), the idle spring (6) corresponds to the throttle body up and down, a positioning support plate B (23) is fixed on the upper surface of the horizontal part of the pressing plate, a jack A is horizontally arranged in the middle position of the rotating frame (10), a jack B is formed in the positioning support plate B (23), and movable positioning rods (9) are arranged in the jack A and the jack B;
the throttle body clamping mechanism comprises a bottom plate (2), a clamp plate (4) and a clamping air cylinder (3), wherein the clamp plate (4) is arranged on the bottom plate (2), the clamp plate (4) is positioned right below the movable pressing plate A (12), the clamping air cylinder (3) is fixed on the side surface of the clamp plate (4), an output shaft of the clamping air cylinder (3) is connected with a positioning pressing plate B (1) which is arranged opposite to the clamp plate (4), and a throttle body is arranged between the positioning pressing plate B (1) and the clamp plate (4);
the lower end of the rotating frame (10) is provided with a positioning bulge, a gear positioning sleeve (8) is arranged below the positioning bulge, and the sector gear (7) is fixed on the gear positioning sleeve (8) through a locking screw (11).
2. The electronic throttle valve body and sector gear laser welding tool as claimed in claim 1, wherein: the angle adjusting device is characterized in that an angle adjusting plate (5) is arranged on the side portion of the clamp plate (4), an angle thirteen-degree inclined plane is arranged on the front end face of the angle adjusting plate (5), a sliding guide rail B (19) is arranged on the side portion of the angle adjusting plate (5) perpendicular to the direction of the clamp plate (4), the angle adjusting plate (5) is fixed on a sliding block B, the sliding block B and the sliding guide rail B (19) are mounted in a matched mode, a rod perpendicular to the sliding guide rail B (19) is horizontally arranged on the sliding block B, an angle adjusting cylinder (20) is arranged on one side of the sliding guide rail B (19) in a parallel mode, and an output shaft of the angle adjusting cylinder (20) is connected with the rod of the sliding block B.
3. The electronic throttle valve body and sector gear laser welding tool as claimed in claim 1, wherein: the upper end of the positioning support plate B (23) is fixedly provided with a limiting plate, and the limiting plate is provided with a limiting adjusting screw (22).
4. The electronic throttle valve body and sector gear laser welding tool as claimed in claim 1, wherein: a pressing-in air cylinder (21) is arranged on one side of the sliding block A, and an output shaft of the pressing-in air cylinder (21) is fixed on the sliding block A.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710891635.9A CN107498200B (en) | 2017-09-27 | 2017-09-27 | Laser welding tool for valve body and sector gear of electronic throttle valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710891635.9A CN107498200B (en) | 2017-09-27 | 2017-09-27 | Laser welding tool for valve body and sector gear of electronic throttle valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107498200A CN107498200A (en) | 2017-12-22 |
| CN107498200B true CN107498200B (en) | 2023-08-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710891635.9A Active CN107498200B (en) | 2017-09-27 | 2017-09-27 | Laser welding tool for valve body and sector gear of electronic throttle valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107498200B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108857237B (en) * | 2018-08-20 | 2024-06-11 | 北京中康增材科技有限公司 | Clamping mechanism for welding |
| CN111391003B (en) * | 2020-03-25 | 2024-06-25 | 南京工业职业技术学院 | Implicit array valve cushion cap cutting machine |
| CN113607073B (en) * | 2021-08-17 | 2023-06-20 | 湛江德利车辆部件有限公司 | Throttle valve assembly and detection device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20090048090A (en) * | 2007-11-09 | 2009-05-13 | 현대자동차주식회사 | A jig device for laser welder |
| CN106493558A (en) * | 2016-09-29 | 2017-03-15 | 联合汽车电子有限公司 | Electronic throttle idler gear assembly system |
| CN206263191U (en) * | 2016-12-16 | 2017-06-20 | 四川红光汽车机电有限公司 | The anti-riveting device of electronic throttle piece trip bolt |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4207825B2 (en) * | 2003-11-07 | 2009-01-14 | 株式会社デンソー | Method of forming throttle device for internal combustion engine |
| JP3925491B2 (en) * | 2003-11-20 | 2007-06-06 | 株式会社デンソー | Laser welding method, structure and throttle valve device |
-
2017
- 2017-09-27 CN CN201710891635.9A patent/CN107498200B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20090048090A (en) * | 2007-11-09 | 2009-05-13 | 현대자동차주식회사 | A jig device for laser welder |
| CN106493558A (en) * | 2016-09-29 | 2017-03-15 | 联合汽车电子有限公司 | Electronic throttle idler gear assembly system |
| CN206263191U (en) * | 2016-12-16 | 2017-06-20 | 四川红光汽车机电有限公司 | The anti-riveting device of electronic throttle piece trip bolt |
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| Publication number | Publication date |
|---|---|
| CN107498200A (en) | 2017-12-22 |
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