Welding equipment for throttle valve shaft and application of welding equipment

Abstract

The invention provides welding equipment for a throttle valve shaft and application of the welding equipment for the throttle valve shaft, and the welding equipment for the throttle valve shaft comprises a plug piece type angle fixing device for adjusting the circumferential angle of the throttle valve shaft, a welding mechanism for welding the throttle valve shaft and a reset gear assembly, and a control mechanism, the control mechanism controls operation of the plug piece type angle fixing device and the welding mechanism. According to the invention, the problems of how to more efficiently and accurately determine the angle of the throttle valve sheet and realize an efficient throttle valve shaft angle fixing function in the prior art are solved.

Description

Technical Field

[0001] The invention relates to the technical field of throttle product processing, and in particular to a welding device for a throttle shaft and an application thereof. Background Art

[0002] The circumferential angle of the throttle shaft of the existing throttle body is adjusted manually. After the throttle body is fixed, the worker knocks on the throttle plate to flip the throttle plate and adjust the angle of the throttle plate. When the angle of the throttle plate reaches the specified angle, the circumferential angle of the throttle shaft also reaches the angle required for welding, and then the subsequent welding of the throttle shaft and the reset gear assembly can be carried out. In this process, the manual knocking method to adjust the throttle plate angle takes a long time and requires repeated adjustments, which delays the subsequent welding process.

[0003] Therefore, how to more efficiently and accurately determine the angle of the throttle plate and realize efficient throttle shaft angle setting function has become a technical problem that needs to be solved. Summary of the invention

[0004] The purpose of the present invention is to provide a welding device for a throttle shaft and its application, mainly to solve the problem of how to more efficiently and accurately determine the angle of the throttle plate in the above-mentioned prior art and realize an efficient throttle shaft angle setting function.

[0005] In order to achieve the above-mentioned purpose, the technical solution adopted by the present invention is: a welding device for a throttle shaft, characterized in that: the welding equipment includes a plug-type angle-fixing device for adjusting the circumferential angle of the throttle shaft, a welding mechanism and a control mechanism for welding the throttle shaft and the reset gear assembly, and the control mechanism controls the operation of the plug-type angle-fixing device and the welding mechanism.

[0006] Further, a plug-type angle setting device for a throttle shaft is characterized in that: the plug-type angle setting device comprises a first driving mechanism, a second driving mechanism, an upper pressure block, a first connecting rod, a support plate for placing a throttle body and a first fixing seat, the movable end of the first driving mechanism is axially connected to one end of the first connecting rod, the first connecting rod is axially connected to the first fixing seat, the other end of the first connecting rod is connected to the upper pressure block and the second driving mechanism, the upper pressure block corresponds to the throttle body on the supporting plate, and the movable end of the second driving mechanism corresponds to the throttle plate in the throttle body;

[0007] A first connecting block is also provided on the supporting plate, and a vertical plugging piece is connected to the first connecting block, and the plugging piece is placed between the throttle plate and the inner side wall of the throttle passage.

[0008] Furthermore, a side surface of the first connecting block close to the inner side wall of the throttle passage is arc-shaped and matches the inner side wall of the throttle passage;

[0009] The first connecting block is provided with a first mounting hole for mounting the plug, and the first mounting hole is close to the inner side wall of the throttle passage;

[0010] A first mounting plate for fixing the plug plate is installed in the first mounting hole;

[0011] Furthermore, two first connecting blocks are provided on the support plate, each of which is connected to a vertical plug plate, a projection line of the two plug plates passes through the center of the throttle plate, and the projection line of the two plug plates is perpendicular to the projection of the throttle shaft.

[0012] Furthermore, a positioning pin for positioning the throttle body is provided on the top surface of the support plate; the first connecting rod is bent, and the corner of the first connecting rod is axially connected to the first fixing seat;

[0013] The throttle plate in the throttle body is divided into a higher half throttle plate and a lower half throttle plate with the throttle shaft as the boundary, and the movable end of the second driving mechanism corresponds to the higher half throttle plate;

[0014] The upper pressing block and the supporting plate press the throttle body tightly; the bottom of the upper pressing block is arc-shaped; and an elastic part is arranged at the bottom of the upper pressing block.

[0015] Furthermore, a hollow portion is provided at a position of the support plate corresponding to the throttle passage; the support plate is connected to the air delivery pipe, one end of the air delivery pipe outlet corresponds to the hollow portion and is connected to the throttle passage, and the other end of the air delivery pipe inlet is connected to the air outlet of the vacuum pump;

[0016] The first driving mechanism is a first cylinder, the bottom of the first cylinder is axially connected to a first connecting plate, the first connecting plate is fixed on a first base, and the first base is fixed on the first bottom plate;

[0017] The bottom of the first fixing seat is connected to the first bottom plate through the second base;

[0018] The second driving mechanism is a second cylinder;

[0019] The plug-type angle setting device comprises a workbench and a control mechanism, wherein the first bottom plate is fixed on the workbench;

[0020] The air delivery pipe passes through the workbench and is connected to a vacuum pump located below the workbench;

[0021] The gas delivery pipe is fixed on the workbench through the second bottom plate;

[0022] The control mechanism controls the operation of the first driving mechanism, the second driving mechanism and the vacuum pump;

[0023] An air flow detector is also provided in the gas pipeline;

[0024] A circle of grooves is arranged on the top surface of the support plate outside the hollow part, a sealing part is arranged in the groove, and the top of the sealing part corresponds to the edge of the throttle channel of the throttle body.

[0025] Further, the welding equipment also includes a first limiting mechanism, the first limiting mechanism includes a third bottom plate, the third bottom plate is fixed on the workbench, the third bottom plate is provided with a first slide rail, the first fixed block is slidably connected to the first slide rail through a first slider, the first fixed block is provided with a first vertical plate, the first vertical plate is provided with a vertical third driving mechanism, the movable end of the third driving mechanism is connected to the first limiting rod, the first fixed block moves forward and backward with the first limiting rod on the first slide rail, the first limiting rod is moved up and down by the third driving mechanism, and when the first limiting rod is against the reset gear assembly, the reset gear assembly is fixed at a specified position;

[0026] The first fixing block is also provided with a first stop bolt, which is threadedly connected to the first fixing block, and the bottom of the first stop bolt corresponds to the top surface of the third bottom plate.

[0027] Further, the welding equipment also includes a second limiting mechanism, the second limiting mechanism includes a fourth bottom plate, the fourth bottom plate is fixed on the worktable, the fourth bottom plate is provided with a second slide rail, the second fixed block is slidably connected to the second slide rail through a second slider, the second fixed block is provided with a second vertical plate, the second vertical plate is connected to the second connecting block, the second connecting block is connected to one end of the second limiting rod, the other end of the second limiting rod is connected to the annular limiting portion, and the annular limiting portion corresponds to the reset gear assembly;

[0028] The fourth driving mechanism is fixed to the fourth base plate through the third connecting block, the movable end of the fourth driving mechanism is connected to the second fixed block, and the fourth driving mechanism drives the second fixed block to move left and right along the second slide rail, so that the annular limiting part moves left and right to press the reset gear assembly against the end of the throttle shaft.

[0029] Further, the welding equipment also includes a welding mechanism, which includes a fifth bottom plate, a third vertical plate is provided on the fifth bottom plate, a slide base is provided on one side of the third vertical plate, two mounting plates are provided on both sides of the slide base, a third slide rail and a screw rod are provided in parallel between the two mounting plates, the screw rod is provided with a slide plate, the slide plate is slidably connected to the third slide rail through the third slider, and the slide plate is also connected to the welding machine through a bridge plate;

[0030] The two mounting plates are also provided with a cover plate, which is located between the slide plate and the bridge plate of the slide;

[0031] A scale part is provided on the top of the slide base; an indication part is provided on the top of the slide plate of the slide, and the indication part corresponds to the scale of the scale part;

[0032] One end of the screw rod passes through one of the mounting plates and is connected to a screw bolt;

[0033] The fifth base plate is fixed on the workbench plate; the control mechanism controls the operation of the welding machine, the third driving mechanism and the fourth driving mechanism;

[0034] The fourth driving mechanism is a fourth cylinder.

[0035] Furthermore, the welding equipment also includes a scanner for scanning the barcode or QR code of the throttle body, the scanner is fixed to the workbench plate through a bracket, and the scanner feeds back the scanning information to the control mechanism;

[0036] The first vertical plate is provided with a plurality of first fixing holes at different heights; the third driving mechanism is a third cylinder, and the third cylinder is connected to the first fixing hole of the first vertical plate through a first L-shaped fixing bracket.

[0037] An application of a welding device for a throttle shaft, using the above-mentioned welding device for a throttle shaft, the specific steps are as follows:

[0038] S1. Place the throttle body on a support plate, embed the positioning pins on the support plate into the corresponding mounting holes of the throttle body, and place the plug between the throttle plate and the inner wall of the throttle channel. The vacuum pump inputs gas into the air pipe, and the gas enters the throttle channel. The flip angle of the throttle plate is adjusted, and the air flow detector detects the amount of air flowing through the gap between the throttle plate and the inner wall of the throttle channel. When the air volume reaches the standard, the gap between the throttle plate and the inner wall of the throttle channel is the standard gap. At this time, the throttle plate rotates circumferentially with the throttle shaft to a specified angle, which is convenient for the subsequent welding of the throttle shaft and the reset gear assembly. Then, a plug of a corresponding size is made according to the standard gap, and the plug is installed in the first mounting hole;

[0039] S2. The throttle body to be welded is placed on the support plate, the positioning pins on the support plate are embedded in the corresponding mounting holes of the throttle body, and the plug is placed between the throttle plate and the inner wall of the throttle channel. At this time, the scanner scans the barcode or QR code of the throttle body and feeds back the scanning information to the control mechanism, which determines whether the throttle body is a qualified product in the previous process. If yes, proceed to the next step. If not, the control mechanism alarms through the alarm and replaces the throttle body.

[0040] S3. If the throttle body is a qualified product in the previous process, the fourth driving mechanism of the second limiting mechanism controls the annular limiting part to press the reset gear assembly, and the operator adjusts the angle of the reset gear assembly to a corresponding angle, moves the first fixing block along the first slide rail to the vicinity of the reset gear assembly, and then tightens the first stop bolt. The first stop bolt is pressed on the third bottom plate to fix the position of the first fixing block on the first slide rail, and then the height of the first limiting rod is adjusted by the third driving mechanism so that the first limiting rod and the gear of the reset gear assembly are against each other. At this time, the first limiting rod keeps the angle of the reset gear assembly at a corresponding angle, which is convenient for the subsequent welding operation of the throttle shaft and the reset gear assembly;

[0041] S4. The operator screws the bolt to drive the screw rod to drive the slide plate to move along the third slide rail, and the slide plate moves the welding machine to the corresponding position to facilitate the subsequent welding operation of the throttle shaft and the reset gear assembly;

[0042] S5, the control mechanism controls the first driving mechanism to move the upper pressing block downward, the upper pressing block and the support plate jointly press the throttle body, and the control mechanism controls the second driving mechanism to push the throttle plate to flip, until the throttle plate and the inner side wall of the throttle channel clamp the plug plate, and indirectly adjust the circumferential rotation angle of the throttle shaft to a corresponding angle, at which time the relative position of the throttle shaft and the reset gear assembly is a welding position;

[0043] S6. The control mechanism controls the welding machine to weld the connection position of the throttle shaft and the reset gear assembly to complete the welding operation.

[0044] In view of the above technical features, the present invention has the following beneficial effects:

[0045] 1. A welding device for a throttle shaft of the present invention, wherein the plug-type angle setting device is designed to place the throttle body on a support plate, use an upper pressure block to press the throttle body, place the plug between the throttle plate and the inner wall of the throttle channel, and the second drive mechanism pushes the throttle plate to flip, and rotates the throttle shaft circumferentially, and adjusts the angle of the throttle shaft to achieve the purpose of setting the angle of the throttle shaft. The circumferential angle of the throttle shaft is adjusted to a specified angle, which is convenient for the subsequent welding of the throttle shaft and the reset gear assembly, and the angle of the throttle plate is determined more efficiently and accurately, realizing an efficient throttle shaft angle setting function, and improving the work efficiency of the throttle shaft angle preparation before welding, that is, improving the work efficiency of the entire welding operation.

[0046] 2. A welding device for a throttle shaft of the present invention is provided with a first limiting mechanism for circumferentially limiting the reset gear assembly. The first limiting mechanism can move forward and backward, up and down, and adjust the position of the first limiting rod. The first limiting rod is abutted against the gear of the reset gear assembly, so that the first limiting rod can limit the reset gear assembly. During the welding process, it is ensured that the circumferential angle of the reset gear assembly does not change, thereby improving the welding stability and accuracy.

[0047] 3. A welding device for a throttle shaft of the present invention is provided with a second limiting mechanism for limiting the reset gear assembly. The second limiting mechanism can move left and right to adjust the positions of the second limiting rod and the annular limiting portion. The annular limiting portion is used to press the reset gear assembly to ensure that the reset gear assembly will not fall off the throttle shaft during the welding process, thereby improving the welding stability and accuracy.

[0048] 4. A welding device for a throttle shaft of the present invention, a welding machine can move left and right on a slide plate, so that the throttle shaft angle setting, the limiting of the reset gear assembly and the welding of the throttle shaft and the reset gear assembly can be completed in one device. The overall device has a compact structure, does not need to be replaced, and improves processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0049] Figure 1 This is a schematic diagram of the structure of a welding device for a throttle shaft in specific embodiment 1. Figure 1 .

[0050] Figure 2 This is a schematic diagram of the structure of a welding device for a throttle shaft in specific embodiment 1. Figure 2 (Hide the ink-tinted glass).

[0051] Figure 3 It is a structural schematic diagram (stereoscopic angle) of the plug-type angle-fixing device in specific embodiment 1.

[0052] Figure 4 It is a structural schematic diagram of the plug-type angle-fixing device in specific embodiment 1 (main viewing angle).

[0053] Figure 5 It is a structural schematic diagram of the plug-type angle-fixing device in specific embodiment 1 (left-side viewing angle).

[0054] Figure 6 This is a schematic diagram of the partial structure of the plug-type angle setting device in specific embodiment 1 Figure 1 .

[0055] Figure 7 This is a schematic diagram of the partial structure of the plug-type angle setting device in specific embodiment 1 Figure 2 .

[0056] Figure 8 This is a schematic diagram of the partial structure of the plug-type angle setting device in specific embodiment 1 Figure 3 .

[0057] Fig. 9 This is a schematic diagram of the partial structure of the plug-type angle setting device in specific embodiment 1 Figure 4 .

[0058] Fig.10 yes Figure 7 A partial enlarged view of .

[0059] Fig.11 It is a structural schematic diagram of the first connecting block, the first mounting plate and the plug plate in specific embodiment 1.

[0060] Fig.12 It is a structural schematic diagram of the first connecting block and the first mounting plate in specific embodiment 1.

[0061] Fig.13 It is a cross-sectional view of the throttle body, the support plate, the second drive mechanism and the upper pressing block in specific embodiment 1.

[0062] Fig.14 It is a schematic structural diagram of the throttle body (including the reset gear assembly) in specific embodiment 1.

[0063] Fig.15 It is a structural schematic diagram of the throttle body in specific embodiment 1.

[0064] Fig.16 It is a structural schematic diagram of the plug-type fixed angle device in specific embodiment 1 (three-dimensional angle, including the throttle body).

[0065] Fig.17 It is a structural schematic diagram of the first limiting mechanism and the second limiting mechanism in specific embodiment 1.

[0066] Fig.18 This is a schematic diagram of the structure of a welding device for a throttle shaft in specific embodiment 1. Figure 3 (Hide cover).

[0067] Fig.19 This is a schematic diagram of the structure of a welding device for a throttle shaft in specific embodiment 1. Figure 4 (Top view angle).

[0068] Fig. 20 This is a schematic diagram of the structure of a welding device for a throttle shaft in specific embodiment 1. Figure 5 (Solid angle).

[0069] In the figure: 100, throttle body; 101, throttle shaft; 102, throttle plate; 103, throttle passage; 104, mounting hole of throttle body; 105, reset gear assembly; 106, reset spring; 107, throttle passage edge;

[0070] 200, first driving mechanism; 201, first connecting rod; 202, first fixing seat; 203, second driving mechanism; 204, upper pressing block; 205, first connecting plate; 206, first base; 207, first bottom plate; 208, second base; 209, first connecting shaft; 210, second connecting shaft; 211, third connecting shaft;

[0071] 300, support plate; 301, plug; 302, positioning pin; 303, first connecting block; 304, first mounting hole; 305, first mounting plate; 306, hollow part; 307, air pipe; 308, second bottom plate; 309, vacuum pump; 310, workbench; 311, groove;

[0072] 400, first limiting mechanism; 401, third bottom plate; 402, first slide rail; 403, first slide block; 404, first fixing block; 405, first vertical plate; 406, first fixing hole; 407, third driving mechanism; 408, first limiting rod; 409, first L-shaped fixing bracket; 410, first stop bolt;

[0073] 500, second limiting mechanism; 501, fourth bottom plate; 502, second slide rail; 503, second slide block; 504, second fixing block; 505, second vertical plate; 506, second fixing hole; 507, fourth driving mechanism; 508, second limiting rod; 509, annular limiting portion; 510, second connecting block; 511, third connecting block;

[0074] 600, welding mechanism; 601, fifth bottom plate; 602, third vertical plate; 603, slide base; 604, mounting plate; 605, third slide rail; 606, screw rod; 607, third slide block; 608, cover plate; 609, bridge plate; 610, scale part; 611, indication part; 612, screw bolt; 613, welding machine; 614, slide plate;

[0075] 700, rack; 701, ink-colored glass. DETAILED DESCRIPTION

[0076] The present invention will be further described below in conjunction with specific embodiments. It should be understood that these embodiments are only used to illustrate the present invention and are not intended to limit the scope of the present invention. In addition, it should be understood that after reading the content taught by the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms fall within the scope limited by the appended claims of the application equally.

[0077] See also Figures 1 to 20 Specific embodiment 1 provides a welding device for a throttle shaft, characterized in that: the welding device includes a plug-type angle-fixing device for adjusting the circumferential angle of the throttle shaft 101, a welding mechanism 600 and a control mechanism for welding the throttle shaft 101 and the reset gear assembly, and the control mechanism controls the operation of the plug-type angle-fixing device and the welding mechanism 600.

[0078] The plug-type fixed angle device includes a first driving mechanism 200, a second driving mechanism 203, an upper pressure block 204, a first connecting rod 201, a support plate 300 for placing a throttle body 100, and a first fixed seat 202. The movable end of the first driving mechanism 200 is axially connected to one end of the first connecting rod 201, the first connecting rod 201 is axially connected to the first fixed seat 202, and the other end of the first connecting rod 201 is connected to the upper pressure block 204 and the second driving mechanism 203. The upper pressure block 204 corresponds to the throttle body 100 on the supporting plate 300, and the movable end of the second driving mechanism 203 corresponds to the throttle plate 102 in the throttle body 100; a first connecting block 303 is also provided on the supporting plate 300, and a vertical plug 301 is connected to the first connecting block 303, and the plug 301 is placed between the throttle plate 102 and the inner wall of the throttle channel 103. The operator places the throttle body 100 on the support plate 300, at which time the throttle passage 103 is in a vertical state, and first places the plug 301 between the throttle plate 102 and the inner side wall of the throttle passage 103, and then the first driving mechanism 200 uses the first connecting rod 201 to move the upper pressing block 204 and the second driving mechanism 203 downward, and the upper pressing block 204 is pressed on the throttle body 100, and the active end of the second driving mechanism 203 corresponds to the throttle plate 102, and then the active end of the second driving mechanism 203 is against the throttle plate 102, so that the throttle The valve plate 102 flips around the throttle shaft 101, and synchronously drives the throttle shaft 101 to rotate in the circumferential direction. When the throttle plate 102 clamps the plug plate 301 with the inner wall of the throttle channel 103, the throttle plate 102 stops flipping and the throttle shaft 101 stops rotating in the circumferential direction. At this time, the angle of the throttle shaft 101 has been adjusted to the specified angle, which can meet the requirements of welding the throttle shaft 101 with the reset gear assembly 105, thereby achieving the purpose of fixing the angle of the throttle shaft 101 by using the plug plate 301. The operation is simple, convenient and has a high yield rate.

[0079] The movable end of the first driving mechanism 200 is axially connected to one end of the first connecting rod 201. For example, the movable end of the first driving mechanism 200 is connected to one end of the first connecting rod 201 via the third connecting shaft 211, ensuring that one end of the first connecting rod 201 can move in a circular trajectory driven by the movable end of the first driving mechanism 200.

[0080] Preferably, one side of the first connecting block 303 close to the inner wall of the throttle channel 103 is arc-shaped and matches the inner wall of the throttle channel 103, which can not only provide avoidance for the position of the throttle body 100, but also play a positioning role for the position of the throttle channel 103, helping the throttle body 100 to be placed on the support plate 300 more quickly and accurately, thereby improving the working efficiency and accuracy of the throttle shaft 101 in fixing the angle.

[0081] The first connecting block 303 is provided with a first mounting hole 304 for mounting a plug 301, and the first mounting hole 304 is close to the inner wall of the throttle channel 103, so that the plug 301 is as close to the inner wall of the throttle channel 103 as possible. When the throttle plate 102 and the inner wall of the throttle channel 103 clamp the plug 301, the plug 301 is kept as vertical as possible or the plug 301 tends to be as vertical as possible, thereby reducing the inaccurate gap between the throttle plate 102 and the inner wall of the throttle channel 103 (for example, the gap is too large) caused by the inclination of the plug 301, thereby indirectly avoiding the throttle plate 102 from flipping into place and the inaccurate circumferential rotation angle of the throttle shaft 101.

[0082] The first mounting hole 304 is provided with a first mounting piece 305 for fixing the plug piece 301, and the top of the first mounting piece 305 is hook-shaped. When installing the plug piece 301, the plug piece 301 is inserted into the first mounting hole 304, and then the first mounting piece 305 is inserted, and the first mounting piece 305 and the first mounting hole 304 clamp the plug piece 301 to achieve the installation and fixation of the plug piece 301, and then the hook-shaped top of the first mounting piece 305 is aligned with the inner side of the first connecting block 303, and the first mounting piece 305 is pressed down, and the hook-shaped top of the first mounting piece 305 is hung on the top of the first connecting block 303, so that the installation of the first mounting piece 305 is more stable and not easy to fall off, and it is also convenient to disassemble the first mounting piece 305, so that the installation, disassembly and replacement of the plug piece 301 can be achieved quickly and conveniently.

[0083] Two first connection blocks 303 are provided on the support plate 300, and each first connection block 303 is connected to a vertical plug 301. The projection line of the two plugs 301 passes through the center of the throttle plate 102, and the projection line of the two plugs 301 is perpendicular to the projection of the throttle shaft 101. A plug 301 is provided on each side of the throttle plate 102. After the throttle plate 102 is turned over, it can press the plugs 301 on both sides at the same time. The throttle plate 102 as a whole more evenly disperses the pressure of the active end of the second driving mechanism 203, so that the corresponding two gaps between the two sides of the throttle plate 102 and the inner wall of the throttle channel 103 are more uniform, ensuring that the circumferential rotation angle of the throttle shaft 101 is more accurate. If only one plug 301 is located between one side of the throttle plate 102 (for example, the higher half of the throttle plate 102) and the inner wall of the throttle channel 103, the movable end of the second drive mechanism 203 presses the side of the throttle plate 102 (for example, the higher half of the throttle plate 102) with the same force, it is easy to cause the force of clamping the plug 301 between the side of the throttle plate 102 and the inner wall of the throttle channel 103 to be too large and thus damage the plug 301, or cause the two corresponding gaps between the two sides of the throttle plate 102 and the inner wall of the throttle channel 103 to be different in size, so that the circumferential rotation angle of the throttle shaft 101 is inaccurate, affecting the work efficiency and processing quality.

[0084] The top surface of the support plate 300 is provided with a positioning pin 302 for positioning the throttle body 100. The positioning pin 302 is embedded in the mounting hole 104 of the throttle body to ensure that the throttle body 100 is stably placed on the support plate 300, and the throttle body 100 can be quickly and accurately installed on the support plate 300, thereby improving work efficiency. There can be three or more positioning pins 302, which can also prevent the throttle body 100 from being installed incorrectly, thereby further improving work efficiency.

[0085] The first connecting rod 201 is bent, and the first connecting rod 201 is axially connected to the first fixing seat 202 at the corner thereof, that is, the first connecting rod 201 is connected to the first fixing seat 202 at the corner thereof through the first connecting shaft 209, and the first connecting rod 201 can rotate with the first connecting shaft 209 as a fulcrum, and the movable end of the first driving mechanism 200 moves up and down in a circular arc trajectory with one end of the first connecting rod 201, and with the first connecting shaft 209 as a fulcrum, the other end of the first connecting rod 201 moves in a circular arc trajectory in the opposite direction with the upper pressing block 204 and the second driving mechanism 203, when the upper pressing block 204 is pressed on the throttle body 100, the second driving mechanism 203 moves into the throttle passage 103, and the second driving mechanism 203 moves into the throttle passage 103. The movable end of the driving mechanism 203 corresponds to the throttle plate 102, and the first connecting rod 201 between the other end of the first connecting rod 201 where the upper pressure block 204 is located and the first connecting shaft 209 is in a horizontal shape, so that the upper pressure block 204 cooperates with the support plate 300 to press the throttle body 100. The first connecting rod 201 between one end of the first connecting rod 201 connected to the movable end of the first driving mechanism 200 and the first connecting shaft 209 is inclined upward. After the throttle shaft 101 is set at a certain angle, it is convenient for the movable end of the first driving mechanism 200 to retract and flip the first connecting rod 201, so that the upper pressure block 204 and the second driving mechanism 203 move up and leave the throttle body 100, which is convenient for the throttle body 100 to be lowered.

[0086] The throttle plate 102 in the throttle body 100 is divided into a higher half throttle plate 102 and a lower half throttle plate 102 with the throttle shaft 101 as the boundary, and the movable end of the second driving mechanism 203 corresponds to the higher half throttle plate 102, ensuring that when the movable end of the second driving mechanism 203 located above the throttle plate 102 is pressed downward, it can press the throttle plate 102 to flip, and then the throttle plate 102 and the inner wall of the throttle channel 103 clamp the plug 301. The second driving mechanism 203 is inclined, and the end face of the movable end of the second driving mechanism 203 is flat, ensuring that the end face of the movable end of the second driving mechanism 203 is pressed on the top surface of the throttle plate 102, so that the throttle plate 102 is better stressed when flipping, and the force is not dispersed.

[0087] The upper pressing block 204 and the support plate 300 press the throttle body 100 and fix the throttle body 100. The bottom of the upper pressing block 204 is arc-shaped, which can better press on the throttle body 100. The bottom of the upper pressing block 204 is provided with an elastic part, which has a buffering effect, so that the upper pressing block 204 can be used to press the throttle body, and the throttle body 100 will not be damaged due to excessive pressure.

[0088] The support plate 300 is provided with a hollow portion 306 at the position corresponding to the throttle passage 103; the bottom of the support plate 300 is connected to an air delivery pipe 307, one end of the air delivery pipe 307 corresponds to the hollow portion 306 and is connected to the throttle passage 103, and the other end of the air delivery pipe 307 is connected to the air outlet of the vacuum pump 309. An air flow detector (not shown in the attached figure) is also provided in the air delivery pipe 307. The vacuum pump 309, the air delivery pipe 307, the hollow portion 306 and the throttle passage 103 are connected to form an air passage for gas to pass through. The air flow detector is used to detect the gas flow in the throttle passage 103 to help determine whether the gap size between the throttle body 100 and the side wall of the throttle passage 103 meets the requirements. If it meets the requirements, it means that the circumferential rotation angle of the throttle shaft 101 reaches the specified angle requirement (that is, it meets the angle requirement of the throttle shaft 101 when the throttle shaft 101 is welded with the reset gear assembly 105), and the operation of setting the throttle shaft 101 is completed. The size of the plug 301 (such as the thickness of the plug 301) can also be adjusted by the aforementioned gas flow detection method. A throttle body 100 uses a plug 301. After a throttle body 100 finds a plug 301 of suitable thickness, the throttle shaft 101 of the subsequent throttle bodies 100 of the same type can be operated at a fixed angle.

[0089] The first driving mechanism 200 is a first cylinder, and the bottom axis of the first cylinder is connected to the first connecting plate 205. For example, the bottom of the first cylinder is connected to the first connecting plate 205 through the second connecting axis 210. The first connecting plate 205 is fixed on the first base 206, and the first base 206 is fixed on the first bottom plate 207; the bottom of the first cylinder and the first connecting plate 205 can be rotatably moved, so that the movable end of the first cylinder can more flexibly push one end of the first connecting rod 201 to move in a circular trajectory.

[0090] The bottom of the first fixing seat 202 is connected to the first bottom plate 207 through the second base 208; the second driving mechanism 203 is a second cylinder.

[0091] The plug 301 type angle setting device includes a workbench 310 and a control mechanism. The first bottom plate 207 is fixed on the workbench 310. The air pipe 307 passes through the workbench 310 and is connected to the vacuum pump 309 located below the workbench 310, so as to reasonably utilize the space below the workbench 310. The air pipe 307 is fixed on the workbench 310 through the second bottom plate 308. The second bottom plate 308 helps the air pipe 307 to be fixedly connected between the workbench 310. The air pipe 307 is made of metal and can also raise the height of the support plate 300, the height of the throttle body 100 is also raised, and the movable stroke range of the movable end of the first cylinder is also larger.

[0092] The top surface of the support plate 300 is provided with a circle of grooves 311 outside the hollow part 306, and a sealing part (not shown in the drawings) is provided in the groove 311, and the top of the sealing part corresponds to the throttle channel edge 107 of the throttle body 100. The sealing part is used to fill the gap between the throttle body 100 corresponding to the throttle channel 103 and the support plate 300. The sealing ring (not shown in the drawings) does not affect the support plate 300 and the upper pressing block 204 to press the throttle body 100 together, so as to prevent the gas flowing into the throttle channel 103 from leaking out of the gas delivery pipe 307, and ensure the accuracy of the air flow detector in detecting the gas in the throttle channel 103.

[0093] The control mechanism controls the operation of the first drive mechanism 200, the second drive mechanism 203 and the vacuum pump 309. The operator only needs to place the throttle body 100 accurately on the support plate 300. The control mechanism controls the first drive mechanism 200 and the second drive mechanism 203 to operate in sequence. First, the throttle body 100 is fixed, and then the throttle plate 102 is flipped, and the throttle shaft 101 is rotated circumferentially, thereby completing the angle-fixing operation of the throttle shaft 101, which is convenient for the subsequent welding operation of the throttle shaft 101 and the reset gear assembly 105.

[0094] The welding equipment also includes a first limiting mechanism 400, which includes a third base plate 401, which is fixed on the workbench 310, and a first slide rail 402 is provided on the third base plate 401. A first fixed block 404 is slidably connected to the first slide rail 402 through a first slider 403, and a first vertical plate 405 is provided on the first fixed block 404. The first vertical plate 405 is provided with a vertical third driving mechanism 407 (for example, a third cylinder, and the movable end of the third cylinder moves up and down in the vertical direction). The movable end of the third driving mechanism 407 is connected to a first limiting rod 408, and the first fixed block 404 moves the first limiting rod 408 back and forth on the first slide rail 402 to approach or move away from the reset gear assembly 105. The first limiting rod 408 is moved up and down by the third driving mechanism 407. When the first limiting rod 408 is against the reset gear assembly 105 (for example, the gear of the reset gear assembly 105), the reset gear assembly 105 is fixed at a specified position. The so-called designated position refers to the reset gear assembly 105 rotating to a corresponding angle that can satisfy the angle and position for welding with the throttle shaft 101. At this time, if the angle and position of the reset gear assembly 105 are not fixed by the first limit rod 408, the reset gear assembly 105 will rotate to other positions under the action of the reset spring 106, and other positions cannot be used for the welding operation between the reset gear assembly 105 and the throttle shaft 101.

[0095] During welding, the reset gear assembly 105 compresses the reset spring 106. After welding, after the first limit rod 408 leaves the reset gear assembly 105, the movable end of the second drive mechanism 203 retracts and leaves the throttle plate 102, and the reset spring 106 rotates and resets with the reset gear assembly 105, and the synchronous throttle shaft 101 rotates slightly. At this time, the throttle plate 102 and the inner side wall of the throttle channel 103 release the plug 301, which is convenient for the throttle body 100 to be removed after welding.

[0096] The first fixing block 404 is also provided with a first stop bolt 410, which is threadedly connected to the first fixing block 404, and the bottom of the first stop bolt 410 corresponds to the top surface of the third bottom plate 401. When the first limit rod 408 abuts against the reset gear assembly 105 (such as the gear of the reset gear assembly 105), the first stop bolt 410 is tightened, and the bottom of the first stop bolt 410 abuts against the third bottom plate 401, so that the first fixing block 404 is stationary on the first slide rail 402, and the angle of the reset gear assembly 105 is prevented from changing, and the reset gear assembly 105 is prevented from rotating before welding.

[0097] Preferably, a plurality of first fixing holes 406 of different heights are provided on the first vertical plate 405; the third driving mechanism 407 is a third cylinder, and the third cylinder is connected to the first fixing hole 406 of the first vertical plate 405 through a first L-shaped fixing bracket 409. By selecting first fixing holes 406 of different heights, the height of the third cylinder is adjusted to meet the limit requirements of the reset gear assembly 105 in the throttle body 100 of different models or specifications.

[0098] The welding equipment also includes a second limiting mechanism 500, which includes a fourth base plate 501, which is fixed on the workbench 310, and a second slide rail 502 is provided on the fourth base plate 501. The second fixed block 504 is slidably connected to the second slide rail 502 through a second slider 503. The second fixed block 504 is provided with a second vertical plate 505, and the second vertical plate 505 is connected to the second connecting block 510. For example, the second vertical plate 505 is provided with a vertical strip waist hole (i.e., the second fixing hole 506), and the second connecting block 510 is connected to the strip waist hole by bolts, which can not only realize the connection and fixation between the second vertical plate 505 and the second connecting block 510, but also adjust the positional relationship between the second connecting block 510 and the second vertical plate 505 in the vertical direction, that is, adjust the height of the second connecting block 510. The second connecting block 510 is connected to one end of the second limiting rod 508, and the other end of the second limiting rod 508 is connected to the annular limiting portion 509, and the annular limiting portion 509 corresponds to the reset gear assembly 105; the fourth driving mechanism 507 is fixed to the fourth base plate 501 through the third connecting block 511, and the movable end of the fourth driving mechanism 507 is connected to the second fixed block 504. The fourth driving mechanism 507 drives the second fixed block 504 to move left and right along the second slide rail 502, so that the annular limiting portion 509 moves left and right to press the reset gear assembly 105 against the end of the throttle shaft 101. When the throttle body 100 is placed on the support plate 300, before welding, the fourth driving mechanism 507 moves the second fixed block 504 to the right, controls the annular limiting portion 509 to press the reset gear assembly 105 to prevent the reset gear assembly 105 from falling off, and after welding, the fourth driving mechanism 507 moves the second fixed block 504 to the left, controls the annular limiting portion 509 to release the reset gear assembly 105, and facilitates the removal of the throttle body 100 after welding.

[0099] The welding equipment also includes a welding mechanism 600, which includes a fifth bottom plate 601, a third vertical plate 602 is provided on the fifth bottom plate 601, a slide base 603 is provided on one side of the third vertical plate 602, two mounting plates 604 are provided on both sides of the slide base 603, a third slide rail 605 and a screw rod 606 are provided in parallel between the two mounting plates 604, the screw rod 606 is provided with a slide plate 614, the slide plate 614 is slidably connected to the third slide rail 605 through a third slider 607, and the slide plate 614 is also connected to the welding machine 613 through a bridge plate 609; for example, in this embodiment 1, two third slide rails 605 are provided, and the upper and lower parts of the slide plate 614 are connected respectively through the corresponding third slide rails 605, and the two third slide rails 605 correspond to the upper and lower parts of the screw rod 606, respectively, to improve the stability of the movement of the slide plate 614.

[0100] The two mounting plates 604 are also provided with a cover plate 608, which is used to prevent dust and protect the power mechanism of the welding machine 613 (such as the screw rod 606, the slide plate 614, the third slide rail 605 and the third slider 607, etc.). The cover plate 608 is located between the slide plate 614 and the bridge plate 609.

[0101] A scale part 610 is provided on the top of the slide base 603; an indication part 611 is provided on the top of the slide plate 614. The indication part 611 corresponds to the scale of the scale part 610, and can intuitively reflect the movement of the welding machine 613, making the moving welding machine 613 more convenient and accurate.

[0102] One end of the screw rod 606 passes through one of the mounting plates 604 and is connected to the screw bolt 612 . By rotating the screw bolt 612 , the screw rod 606 is driven to rotate, thereby moving the welding machine 613 , that is, the welding machine 613 is close to the throttle body 100 or away from the throttle body 100 .

[0103] The fifth base plate 601 is fixed on the workbench plate 310; the control mechanism controls the operation of the welding machine 613, the third driving mechanism 407 and the fourth driving mechanism 507; the fourth driving mechanism 507 is a fourth cylinder.

[0104] The welding equipment also includes a scanner (not shown in the attached drawings) for scanning the barcode or QR code of the throttle body 100. The scanner is fixed on the workbench 310 through a bracket, and the scanner feeds back the scanning information to the control mechanism. Before the first limit rod 408 limits the reset gear assembly 105 and the welding machine 613 welds the throttle shaft 101 and the reset gear assembly 105, the barcode or QR code of the throttle body 100 is first scanned, and the control mechanism determines whether the throttle body 100 is a qualified product in the previous process, and performs a preliminary screening on the throttle body 100 to be welded, so as to avoid setting the angle and welding the unqualified products, which causes waste of processing time and raw materials.

[0105] An application of a welding device for a throttle shaft, using the above-mentioned welding device for a throttle shaft, the specific steps are as follows:

[0106] S1. The throttle body is placed on the support plate 300. The positioning pin 302 on the support plate 300 is embedded in the corresponding mounting hole 104 of the throttle body 100. The plug 301 is placed between the throttle plate 102 and the inner wall of the throttle channel 103. The vacuum pump 309 inputs gas into the air pipe 307. The gas enters the throttle channel 103. The flip angle of the throttle plate 102 is adjusted. The air flow detector detects the amount of air flowing through the gap between the throttle plate 102 and the inner wall of the throttle channel 103. After the air volume reaches the standard, the gap between the throttle plate 102 and the inner wall of the throttle channel 103 is the standard gap. At this time, the throttle plate 102 rotates circumferentially with the throttle shaft 101 to a specified angle, which is convenient for the subsequent welding of the throttle shaft 101 and the reset gear assembly 105. Then, the plug 301 of the corresponding size is made according to the standard gap, and the plug 301 is installed in the first mounting hole 304.

[0107] S2, the throttle body 100 to be welded is placed on the support plate 300, the positioning pin 302 on the support plate 300 is embedded in the corresponding mounting hole 104 of the throttle body 100, and the plug 301 is placed between the throttle plate 102 and the inner wall of the throttle channel 103, at this time, the scanner scans the throttle body barcode or QR code, and feeds the scanning information back to the control mechanism, and the control mechanism determines whether the throttle body 100 is a qualified product in the previous process, if yes, then proceed to the next step, if not, the control mechanism alarms through the alarm and replaces the throttle body 100;

[0108] S3. If the throttle body 100 is a qualified product in the previous process, the fourth driving mechanism 507 of the second limiting mechanism 500 controls the annular limiting portion 509 to press the reset gear assembly 105, and the operator adjusts the angle of the reset gear assembly 105 to a corresponding angle, moves the first fixing block 404 along the first slide rail 402 to the vicinity of the reset gear assembly 105, and then tightens the first stop bolt 410. The first stop bolt 410 is pressed on the third bottom plate 401 to fix the position of the first fixing block 404 on the first slide rail 402, and then the height of the first limiting rod 408 is adjusted by the third driving mechanism 407, so that the first limiting rod 408 and the gear of the reset gear assembly 105 are against each other. At this time, the first limiting rod 408 keeps the angle of the reset gear assembly 105 at a corresponding angle, which is convenient for the subsequent welding operation of the throttle shaft 101 and the reset gear assembly 105;

[0109] S4, the operator screws the bolt 612 to drive the screw rod 606 to drive the slide plate 614 to move along the third slide rail 605, and the slide plate 614 moves the welding machine 613 to the corresponding position to facilitate the subsequent welding operation of the throttle shaft 101 and the reset gear assembly 105;

[0110] S5, the control mechanism controls the first driving mechanism 200 to move the upper pressing block 204 downward, the upper pressing block 204 and the support plate 300 jointly press the throttle body 100, and the control mechanism controls the second driving mechanism 203 to push the throttle plate 102 to flip, until the throttle plate 102 and the inner wall of the throttle channel 103 clamp the plug 301, and indirectly adjust the circumferential rotation angle of the throttle shaft 101 to the corresponding angle, at which time the relative position of the throttle shaft 101 and the reset gear assembly 105 is the welding position;

[0111] S6. The control mechanism controls the welding machine 613 to weld the connection position between the throttle shaft 101 and the reset gear assembly 105 to complete the welding operation.

[0112] In this embodiment 1, the welding equipment for the throttle shaft is arranged on the frame 700, and the workbench 310 is connected to the frame. The welding equipment for the throttle shaft is provided with black glass 701 on the front and rear sides. During welding, the black glass 701 or the colored glass can block light and protect the eyesight of the operator.

[0113] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0114] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0115] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A welding device for a throttle shaft, characterized in that: The welding device comprises a plug-type angle setting device for adjusting the circumferential angle of a throttle shaft (101), a welding mechanism (600) and a control mechanism for welding the throttle shaft (101) and a reset gear assembly, wherein the control mechanism controls the operation of the plug-type angle setting device and the welding mechanism (600).

2. The welding equipment for a throttle shaft according to claim 1, characterized in that: The plug-type angle-fixing device comprises a first driving mechanism (200), a second driving mechanism (203), an upper pressing block (204), a first connecting rod (201), a support plate (300) for placing a throttle body (100), and a first fixing seat (202); the movable end of the first driving mechanism (200) is axially connected to one end of the first connecting rod (201); the first connecting rod (201) is axially connected to the first fixing seat (202); the other end of the first connecting rod (201) is connected to the upper pressing block (204) and the second driving mechanism (203); the upper pressing block (204) corresponds to the throttle body (100) on the support plate (300); and the movable end of the second driving mechanism (203) corresponds to the throttle plate (102) in the throttle body (100); The support plate (300) is also provided with a first connecting block (303), and the first connecting block (303) is connected to a vertical plugging piece (301), and the plugging piece (301) is placed between the throttle plate (102) and the inner side wall of the throttle channel (103).

3. The welding equipment for a throttle shaft according to claim 2, characterized in that: A side surface of the first connecting block (303) close to the inner side wall of the throttle passage (103) is arc-shaped and matches the inner side wall of the throttle passage (103); The first connection block (303) is provided with a first mounting hole (304) for mounting the plug (301), and the first mounting hole (304) is close to the inner wall of the throttle passage (103); A first mounting plate (305) for fixing the plug plate (301) is installed in the first mounting hole (304); Two first connection blocks (303) are provided on the support plate (300), each of the first connection blocks (303) is connected to a vertical plug plate (301), a projection line of the two plug plates (301) passes through the center of the throttle plate (102), and the projection line of the two plug plates (301) is perpendicular to the projection of the throttle shaft (101).

4. The welding equipment for a throttle shaft according to claim 3, characterized in that: A positioning pin (302) for positioning the throttle body (100) is provided on the top surface of the support plate (300); the first connecting rod (201) is bent, and the first connecting rod (201) is axially connected to the first fixing seat (202) at the corner; The throttle plate (102) in the throttle body (100) is divided into a higher half throttle plate (102) and a lower half throttle plate (102) with the throttle shaft (101) as a boundary, and the movable end of the second driving mechanism (203) corresponds to the higher half throttle plate (102); The upper pressing block (204) and the supporting plate (300) press the throttle body (100); the bottom of the upper pressing block (204) is arc-shaped; and an elastic portion is provided at the bottom of the upper pressing block (204).

5. The welding equipment for a throttle shaft according to claim 4, characterized in that: A hollow portion (306) is provided at a position of the support plate (300) corresponding to the throttle passage (103); the support plate (300) is connected to an air delivery pipe (307); one end of an air outlet of the air delivery pipe (307) corresponds to the hollow portion (306) and is connected to the throttle passage (103); and the other end of an air inlet of the air delivery pipe (307) is connected to an air outlet of a vacuum pump (309); The first driving mechanism (200) is a first cylinder, the bottom of the first cylinder is axially connected to a first connecting plate (205), the first connecting plate (205) is fixed on a first base (206), and the first base (206) is fixed on a first bottom plate (207); The bottom of the first fixing seat (202) is connected to the first bottom plate (207) via a second base (208); The second driving mechanism (203) is a second cylinder; The plug-type angle setting device comprises a working table (310) and a control mechanism, wherein the first bottom plate (207) is fixed on the working table (310); The air delivery pipe (307) passes through the workbench (310) and is connected to a vacuum pump (309) located below the workbench (310); The gas delivery pipe (307) is fixed on the workbench (310) through the second bottom plate (308); The control mechanism controls the operation of the first driving mechanism (200), the second driving mechanism (203) and the vacuum pump (309); An air flow detector is also provided in the air delivery pipe (307); The top surface of the support plate (300) is provided with a circle of grooves (311) outside the hollow portion (306), a sealing portion is provided in the groove (311), and the top of the sealing portion corresponds to the throttle channel edge portion (107) of the throttle body (100).

6. A welding device for a throttle shaft according to any one of claims 1 to 5, characterized in that: The welding device further comprises a first limiting mechanism (400), the first limiting mechanism (400) comprising a third bottom plate (401), the third bottom plate (401) being fixed on the workbench (310), the third bottom plate (401) being provided with a first slide rail (402), the first fixed block (404) being slidably connected to the first slide rail (402) via a first slider (403), the first fixed block (404) being provided with a first vertical plate (405), the first vertical plate (405) being provided with A third vertical driving mechanism (407) is provided, the movable end of the third driving mechanism (407) is connected to the first limiting rod (408), the first fixing block (404) drives the first limiting rod (408) to move forward and backward on the first slide rail (402), the first limiting rod (408) is driven by the third driving mechanism (407) to move up and down, and when the first limiting rod (408) abuts against the reset gear assembly (105), the reset gear assembly (105) is fixed at a specified position; The first fixing block (404) is also provided with a first stop bolt (410), the first stop bolt (410) is threadedly connected to the first fixing block (404), and the bottom of the first stop bolt (410) corresponds to the top surface of the third bottom plate (401).

7. A welding device for a throttle shaft according to claim 6, characterized in that: The welding device also includes a second limiting mechanism (500), the second limiting mechanism (500) includes a fourth bottom plate (501), the fourth bottom plate (501) is fixed on the workbench (310), a second slide rail (502) is provided on the fourth bottom plate (501), a second fixed block (504) is slidably connected to the second slide rail (502) through a second slider (503), a second vertical plate (505) is provided on the second fixed block (504), the second vertical plate (505) is connected to a second connecting block (510), the second connecting block (510) is connected to one end of a second limiting rod (508), the other end of the second limiting rod (508) is connected to an annular limiting portion (509), and the annular limiting portion (509) corresponds to the reset gear assembly (105); The fourth driving mechanism (507) is fixed on the fourth base plate (501) via the third connecting block (511); the movable end of the fourth driving mechanism (507) is connected to the second fixing block (504); the fourth driving mechanism (507) drives the second fixing block (504) to move left and right along the second slide rail (502), so that the annular limiting portion (509) moves left and right to press the reset gear assembly (105) against the end of the throttle shaft (101).

8. The welding equipment for a throttle shaft according to claim 7, characterized in that: The welding device also includes a welding mechanism (600), the welding mechanism (600) includes a fifth bottom plate (601), a third vertical plate (602) is provided on the fifth bottom plate (601), a slide base (603) is provided on one side of the third vertical plate (602), two mounting plates (604) are provided on both sides of the slide base (603), a third slide rail (605) and a screw rod (606) are provided in parallel between the two mounting plates (604), the screw rod (606) is provided with a slide plate (614), the slide plate (614) is slidably connected to the third slide rail (605) through a third slider (607), and the slide plate (614) is also connected to the welding machine (613) through a bridge plate (609); The two mounting plates (604) are also provided with a cover plate (608), and the cover plate (608) is located between the slide plate (614) and the bridge plate (609); A scale portion (610) is provided on the top of the slide base (603); an indication portion (611) is provided on the top of the slide plate (614), and the indication portion (611) corresponds to the scale of the scale portion (610); One end of the screw rod (606) passes through one of the mounting plates (604) and is connected to a screw bolt (612); The fifth base plate (601) is fixed on the workbench plate (310); the control mechanism controls the operation of the welding machine (613), the third driving mechanism (407) and the fourth driving mechanism (507); The fourth driving mechanism (507) is a fourth cylinder.

9. The welding equipment for a throttle shaft according to claim 8, characterized in that: The welding equipment also includes a scanner for scanning a barcode or a two-dimensional code on the throttle body (100); the scanner is fixed on a workbench (310) via a bracket, and the scanner feeds back scanning information to the control mechanism; The first vertical plate (405) is provided with a plurality of first fixing holes (406) at different heights; the third driving mechanism (407) is a third cylinder, and the third cylinder is connected to the first fixing hole (406) of the first vertical plate (405) through a first L-shaped fixing bracket (409).

10. Application of a throttle shaft welding device, using the throttle shaft welding device according to claim 9, the specific steps are as follows: S1. The throttle body (100) is placed on the support plate (300). The positioning pin (302) on the support plate (300) is embedded in the corresponding mounting hole (104) of the throttle body (100). The plug (301) is placed between the throttle plate (102) and the inner wall of the throttle passage (103). The vacuum pump (309) inputs gas into the air delivery pipe (307). The gas enters the throttle passage (103). The flip angle of the throttle plate (102) is adjusted. The air flow detector detects the air flow through the throttle plate (102). 02) and the inner wall of the throttle passage (103) are tested. When the air volume reaches the standard, the gap between the throttle plate (102) and the inner wall of the throttle passage (103) is the standard gap. At this time, the throttle plate (102) rotates circumferentially with the throttle shaft (101) to a specified angle, which is convenient for subsequent welding of the throttle shaft (101) and the reset gear assembly (105). Then, a plug plate (301) of a corresponding size is manufactured according to the standard gap, and the plug plate (301) is installed in the first mounting hole (304); S2, placing the throttle body (100) to be welded on the support plate (300), embedding the positioning pin (302) on the support plate (300) into the corresponding mounting hole (104) of the throttle body (100), and placing the plug (301) between the throttle plate (102) and the inner wall of the throttle channel (103), at which time the scanner scans the throttle body barcode or QR code, and feeds the scanning information back to the control mechanism, which determines whether the throttle body (100) is a qualified product in the previous process. If so, proceed to the next step. If not, the control mechanism issues an alarm through the alarm and replaces the throttle body (100); S3. If the throttle body (100) is a qualified product in the previous process, the fourth driving mechanism (507) of the second limiting mechanism (500) controls the annular limiting portion (509) to press the reset gear assembly (105), and the operator adjusts the angle of the reset gear assembly (105) to a corresponding angle, moves the first fixing block (404) along the first slide rail (402) to the vicinity of the reset gear assembly (105), and then tightens the first stop bolt (410). The first stop bolt (410) The first fixing block (404) is pressed onto the third bottom plate (401) to fix the position of the first fixing block (404) on the first slide rail (402), and then the height of the first limiting rod (408) is adjusted by the third driving mechanism (407) so that the first limiting rod (408) and the gear of the reset gear assembly (105) are abutted against each other. At this time, the first limiting rod (408) keeps the angle of the reset gear assembly (105) at a corresponding angle, so as to facilitate the subsequent welding operation of the throttle shaft (101) and the reset gear assembly (105); S4, the operator screws the bolt (612) to drive the screw rod (606) to drive the slide plate (614) to move along the third slide rail (605), and the slide plate (614) moves the welding machine (613) to the corresponding position to facilitate the subsequent welding operation of the throttle shaft (101) and the reset gear assembly (105); S5, the control mechanism controls the first driving mechanism (200) to move the upper pressing block (204) downward, the upper pressing block (204) and the support plate (300) jointly press the throttle body (100), and the control mechanism controls the second driving mechanism (203) to push the throttle plate (102) to flip, until the throttle plate (102) and the inner wall of the throttle channel (103) clamp the plug plate (301), and indirectly adjust the circumferential rotation angle of the throttle shaft (101) to a corresponding angle, at which time the relative position of the throttle shaft (101) and the reset gear assembly (105) is a welding position; S6. The control mechanism controls the welding machine (613) to weld the connection position between the throttle shaft (101) and the reset gear assembly (105), thereby completing the welding operation.

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