Gear machining positioning welding equipment and welding method thereof

Abstract

The invention discloses gear machining positioning welding equipment and a welding method thereof.The gear machining positioning welding equipment comprises a base and further comprises two fixing ring plates installed on the base, and annular through grooves are formed in the centers of the two fixing ring plates; the two shaft seat plates are installed on the two sides of the fixed annular plate respectively, a rotatable center shaft is installed between the two shaft seat plates, and the center shaft penetrates through the two annular through grooves and is coaxial with the two annular through grooves; the inner supporting assembly is mounted on the central shaft and consists of a plurality of inner supporting arc plates which are annularly distributed and can be centripetally or centrifugally moved and adjusted relative to the axis of the central shaft; the outer clamping assembly is mounted between the two fixed ring plates; through double positioning of the inner supporting assembly and the outer clamping assembly, the coaxiality of the web and the gear ring before welding is ensured, the coaxial state of the web and the gear ring can be ensured in the welding process through accurate preliminary positioning and dynamic detection, and therefore the quality of a gear formed after welding is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of gear welding processing, and particularly to a gear processing positioning welding device and a welding method thereof. Background Art

[0002] In the process of gear processing, for large gears, since it is difficult to be integrally cast, the split casting and assembly welding method is often adopted. For example, for web-type gears, the web and the tooth ring are usually assembled and welded to reduce the manufacturing difficulty.

[0003] Currently, existing welding devices, such as Chinese Patent CN118720420B, disclose a laser welding device for large gear processing and its welding process. This laser welding device can accurately assemble and coaxiality detect gear components, improve welding accuracy, and can recycle the heat generated during the welding process to achieve the effect of heat preservation at the welding point, thereby effectively improving the welding effect.

[0004] However, when fixing the web and the tooth ring, the coaxial fixing is mainly carried out by static fixing. Since the gear needs to rotate dynamically after being assembled and welded, if only static fixing and coaxiality detection are carried out, there may still be a coaxiality error between the tooth ring and the web, resulting in a coaxial deviation when the gear rotates dynamically, and further affecting the quality of gear assembly welding. Summary of the Invention

[0005] The purpose of the present invention is to provide a gear processing positioning welding device and a welding method thereof to solve at least one of the technical problems existing in the above-mentioned prior art.

[0006] To achieve the above purpose, the present invention provides the following technical solution: A gear processing positioning welding device includes a base, and further includes:

[0007] Two fixed ring plates installed on the base, and annular through grooves are provided at the centers of the two fixed ring plates;

[0008] Two shaft seat plates respectively installed on both sides of the fixed ring plates, a rotatable central shaft is installed between the two shaft seat plates, and the central shaft penetrates through the two annular through grooves and is coaxially arranged with them;

[0009] An inner support assembly installed on the central shaft, the inner support assembly consists of a plurality of inner support arc plates distributed in a ring and capable of moving centripetally or centrifugally relative to the axis of the central shaft;

[0010] An outer clamping assembly installed between two fixed ring plates, the outer clamping assembly includes a plurality of clamping gears that can perform centripetal or centrifugal adjustment relative to the center of the annular through groove, and the clamping gears can rotate along their own axes;

[0011] An installation ring installed in the annular through groove and capable of rotating, and a welding head is installed on the installation ring through an adjustment arm;

[0012] A detection part installed on the central shaft, and the detection part can emit ranging laser to the plane of the web or the tooth ring.

[0013] Preferably, the inner support assembly includes an inner embedded ring embedded and rotatably installed on the outer wall of the central shaft. A plurality of the inner support arc plates are fixed on the annular side wall of the inner embedded ring through telescopic rods. Two tooth inserting rings are also installed on the outer walls of the central shaft on both sides of the inner embedded ring, and both of the two tooth inserting rings are threadedly connected to the central shaft. The outer walls of the tooth inserting parts of the two tooth inserting rings are rotatably installed with second connecting rods. Side rings are also installed on the outer walls of the central shaft on both sides of the two tooth inserting rings, and the outer walls of the two side rings are rotatably installed with first connecting rods. The adjacent first connecting rods and second connecting rods are rotatably connected through a pin shaft, and the pin shaft is slidably installed in an arc groove on the outer wall of the inner support arc plate;

[0014] The inner support assembly further includes an adjustment part that can control the rotation locking and sliding adjustment of the two side rings.

[0015] Preferably, the adjustment part includes two sleeves, and the two sleeves are respectively installed on the outer walls of the central shaft on the opposite sides of the two side rings. It also includes an electric slider installed on the outer wall of the shaft seat plate and capable of vertical sliding adjustment. A connecting rod is rotatably connected between the electric slider and the sleeve. A locking plug that can be slidably adjusted is also installed on the outer wall of the sleeve. A slot for the locking plug to insert and lock is opened on the outer wall of the side ring.

[0016] Preferably, the detection part includes a laser rangefinder installed on the outer wall of the first connecting rod, and the plane where the first connecting rod and the laser rangefinder are located coincides with the plane where the axis of the central shaft is located.

[0017] Preferably, the outer clamping assembly includes a plurality of sliding grooves opened on the outer wall of the fixed ring plate and distributed in a ring shape. A slider is slidably installed in each sliding groove, and the clamping gear is rotatably installed on the slider. A driving ring that can be rotationally adjusted is also installed on the outer wall of the fixed ring plate. An arc-shaped limiting groove is opened on the outer wall of the driving ring close to the slider, and a fixing pin that is slidably installed in the limiting groove is fixed on the outer wall of the slider.

[0018] Preferably, there are multiple groups of the welding heads designed, and the rotation angle of the installation ring can make the welding points welded by the multiple groups of welding heads form a complete circular welding point.

[0019] Preferably, the two shaft seat plates can be adjusted to be relatively close to or away from each other. When they are adjusted to move away from each other, one of the shaft seat plates is disengaged from the central shaft, and a servo motor for driving the central shaft to rotate is installed on the other shaft seat plate.

[0020] A gear processing positioning and welding method includes the gear processing positioning and welding equipment described above, and further includes the following steps:

[0021] S1: The web and the tooth ring to be processed are transported between the two fixed ring plates by an external hoisting device, and the central shaft passes through the central hole of the web. Then, the inner support assembly makes a centrifugal movement adjustment relative to the axis of the central shaft through a plurality of annularly distributed inner support arc plates to internally support and fix the central hole of the web, completing the central positioning and fixing of the web.

[0022] S2: At the same time, the outer clamping assembly makes a centripetal movement adjustment through a plurality of clamping gears relative to the center of the annular through groove, so that the clamping gears mesh with the teeth of the tooth ring until the central positioning and fixing of the tooth ring is completed.

[0023] S3: The central shaft is driven to rotate by an external structure, so that the web and the tooth ring are driven to rotate relative to each other through the inner support assembly. At the same time, the detection part installed on the central shaft emits ranging laser to the plane of the tooth ring, and whether there is an offset between the plane of the tooth ring and the detection part is monitored through the change of the dynamic distance, so as to judge whether the tooth ring is coaxial with the central shaft.

[0024] S4: After the detection is completed and the result is qualified, the installation rings located in the two annular through grooves rotate under the drive of an external mechanism. At the same time, the adjustment arm moves the welding head to the weld position of the web and the tooth ring. As the installation ring rotates, the welding head welds the weld position of the web and the tooth ring to complete the welding process.

[0025] S5: After the detection is completed and the result is unqualified, the clamping processes in S1 and S2 above are repeated until the detection is qualified, and then the welding process in S4 is started.

[0026] Preferably, after the detection in S3 is completed, it further includes step V1. In step V1, the installation ring is first driven to rotate by an external drive structure, and the welding head preliminarily welds and fixes the web and the tooth ring by spot welding. Then, the central shaft is driven to rotate again, so that the web and the tooth ring rotate together, and the tooth ring and the clamping gears remain in a meshing transmission state. The offset of the tooth ring in the dynamic meshing state is detected by the ranging laser emitted by the detection part, so as to judge whether the coaxial state is maintained, and then the subsequent S4 or correction process is carried out.

[0027] Preferably, it further includes step V2. After the end of step V1, the multiple inner support arc plates of the inner support assembly move centripetally to release the locking of the web, and then the clamping gear rotates under the drive of an external structure and drives the web and the toothed ring to rotate through reverse transmission. At this time, the detection part on the central shaft emits ranging laser to detect the offset of the central hole of the web in the dynamic meshing state, so as to judge whether the coaxial state is maintained, and then the subsequent S4 or correction process is carried out.

[0028] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0029] First, through the dual positioning of the inner support assembly and the outer clamping assembly, the present invention ensures the coaxiality of the web and the toothed ring before welding. This precise preliminary positioning and dynamic detection can ensure the coaxial state of the web and the toothed ring during the welding process, thereby improving the quality of the gear after welding.

[0030] Second, after the preliminary fixing by spot welding, the present invention can detect and correct the deviation in time by dynamically detecting the coaxiality. This design allows multiple detections and adjustments of the coaxiality before and after welding to ensure the accuracy of the final welding effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 is a three-dimensional structural schematic diagram of the web and the toothed ring of the present invention after being clamped;

[0032] Figure 2 is a side view of the present invention;

[0033] Figure 3 is a side sectional three-dimensional diagram of the present invention;

[0034] Figure 4 is a state diagram of the central shaft and its upper structure fixing the web of the present invention;

[0035] Figure 5 is an enlarged three-dimensional diagram of the central shaft and its upper structure of the present invention;

[0036] Figure 6 is a disassembled schematic diagram of the web and the toothed ring of the present invention;

[0037] Figure 7 is the present invention Figure 5 a plane schematic diagram of the perspective;

[0038] Figure 8 is an exploded three-dimensional diagram of the inserted toothed ring, the embedded ring and the central shaft of the present invention;

[0039] Figure 9 is a schematic diagram of the inner support arc plate in a contracted state of the present invention;

[0040] Figure 10This is a schematic diagram after the clamping gear pairs the tooth ring and fixes it in the present invention.

[0041] In the figure: 1, base; 2, shaft seat plate; 3, fixed ring plate; 4, mounting ring; 5, central shaft; 6, side ring; 7, gear shaper ring; 8, embedded ring; 9, telescopic rod; 10, inner support arc plate; 11, first connecting rod; 12, second connecting rod; 13, laser rangefinder; 14, sleeve; 15, electric slider; 16, connecting rod; 17, slider; 18, clamping gear; 19, driving ring; 20, fixing pin; 21, limiting groove; 22, locking plug-in; 23, web; 24, tooth ring; 25, welding head. Detailed implementation manners

[0042] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0043] Please refer to Figures 1 to 10 , the present invention provides a technical solution: a gear processing positioning and welding device, including a base 1, and further including:

[0044] Two fixed ring plates 3 installed on the base 1, and annular through grooves are provided at the centers of the two fixed ring plates 3;

[0045] Two shaft seat plates 2 respectively installed on both sides of the fixed ring plate 3, a rotatable central shaft 5 is installed between the two shaft seat plates 2, and the central shaft 5 penetrates through the two annular through grooves and is coaxially arranged with them;

[0046] An inner support component installed on the central shaft 5, the inner support component is composed of a plurality of inner support arc plates 10 distributed in a ring shape and capable of making centripetal or centrifugal movement adjustments relative to the axis of the central shaft 5;

[0047] An outer clamping component installed between the two fixed ring plates 3, the outer clamping component includes a plurality of clamping gears 18 capable of making centripetal or centrifugal adjustments relative to the center of the annular through groove, and the clamping gears 18 can rotate along their own axes;

[0048] A mounting ring 4 installed in the annular through groove and capable of rotating, and a welding head 25 is installed on the mounting ring 4 through an adjusting arm;

[0049] A detection part installed on the central shaft 5, and the detection part can emit ranging laser to the plane of the web 23 or the tooth ring 24.

[0050] Before the gear processing positioning and welding equipment welds the web 23 and the gear ring 24, it is necessary to calibrate and position their coaxiality first to ensure the quality of the gear after welding. The specific calibration and positioning method is as follows:

[0051] The to-be-processed web 23 and gear ring 24 are transported between the two fixed ring plates 3 by an external hoisting device, and the central shaft 5 and its upper structure pass through the central hole of the web 23. Then, the inner support assembly moves centrifugally relative to the axis of the central shaft 5 through a plurality of annularly distributed inner support arc plates 10 to internally support and fix the central hole of the web 23, completing the central positioning and fixing of the web 23. At the same time, the outer clamping assembly moves centripetally relative to the center of the annular through groove through a plurality of clamping gears 18, so that the clamping gears 18 mesh with the teeth of the gear ring 24 until the central positioning and fixing of the gear ring 24 is completed. Thus, the static positioning and fixing of the web 23 and the gear ring 24 are completed;

[0052] Then, further dynamic detection of their coaxiality is started. First, the central shaft 5 is driven to rotate by an external structure, so that the web 23 and the gear ring 24 are driven to rotate relative to each other through the inner support assembly. At the same time, the detection part installed on the central shaft 5 emits ranging laser to the plane of the gear ring 24, and whether there is an offset between the plane of the gear ring 24 and the detection part is monitored through the change of the dynamic distance, and whether the gear ring 24 is coaxial with the central shaft 5 is judged by the dynamic detection method;

[0053] After the detection is completed, the installation ring 4 is driven to rotate by an external driving structure, so that the welding head 25 preliminarily welds and fixes the web 23 and the gear ring 24 by spot welding the local parts of the web 23 and the gear ring 24. Then, the central shaft 5 is driven to rotate again, so that the web 23 and the gear ring 24 rotate together, and the gear ring 24 and the clamping gear 18 are kept in a meshing transmission state. The offset of the gear ring 24 in the dynamic meshing state is detected by the ranging laser emitted by the detection part, so as to judge whether the coaxial state is maintained. In this way, the coaxiality of the web 23 and the gear ring 24 can be detected by simulating the dynamic meshing transmission. And because they are only connected by spot welding, after being subjected to stress beyond the stress range, they can have a certain relative displacement space. In this way, if they are not on the same axis, the spot welding position between the gear ring 24 and the web 23 will be damaged under the action of external stress, so as to achieve the purpose of dynamically detecting their coaxiality. At the same time, it is also convenient to correct the web 23 and the gear ring 24 again, avoiding the difficulty of correcting them after direct welding.

[0054] Moreover, it is worth mentioning that after the above detection, the multiple inner support arc plates 10 of the inner support assembly can also move centripetally to release the locking of the web 23. Then, the clamping gear 18 rotates driven by an external structure, and drives the web 23 and the tooth ring 24 to rotate through reverse transmission. At this time, the detection part on the central shaft 5 emits ranging laser to detect the offset of the central hole of the web 23 in the dynamic meshing state. In this way, by detecting the coaxiality of both the web 23 and the tooth ring 24, the detection result can be made more accurate to ensure the coaxial accuracy before welding and further guarantee the quality of the gear after welding forming.

[0055] After the detection is completed, the mounting rings 4 located in the two annular through grooves rotate driven by an external mechanism. At the same time, the adjusting arm moves the welding head 25 to the weld position of the web 23 and the tooth ring 24. As the mounting ring 4 rotates, the welding head 25 welds the weld position of the web 23 and the tooth ring 24, and the final welding forming of the gear can be completed.

[0056] In one relatively preferred embodiment, an implementation manner of the inner support assembly is provided;

[0057] The inner support assembly includes an inner embedded ring 8 embedded and rotatably installed on the outer wall of the central shaft 5. A plurality of inner support arc plates 10 are all fixed on the annular side wall of the inner embedded ring 8 through telescopic rods 9. Two inserting tooth rings 7 are also installed on the outer walls of the central shaft 5 on both sides of the inner embedded ring 8, and both of the two inserting tooth rings 7 are threadedly connected with the central shaft 5. The outer walls of the inserting teeth of both of the two inserting tooth rings 7 are rotatably installed with second connecting rods 12. Side rings 6 are also installed on the outer walls of the central shaft 5 on both sides of the two inserting tooth rings 7, and the outer walls of both of the two side rings 6 are rotatably installed with first connecting rods 11. The adjacent first connecting rods 11 and second connecting rods 12 are rotatably connected through a pin shaft, and the pin shaft is slidably installed in the arc groove on the outer wall of the inner support arc plate 10;

[0058] The inner support assembly further includes an adjusting part capable of controlling the rotational locking and sliding adjustment of the two side rings 6.

[0059] Specifically, refer to Figure 7 , in the initial state, the two inserting tooth rings 7 are in a mutually intersecting state. At this time, under the connection action of the first connecting rod 11 and the second connecting rod 12, the pin shaft at the connection part will make the inner support arc plate 10 in a position close to the central shaft 5, so as to provide enough space for the insertion of the central hole of the web 23. The specific state is as Figure 9 shown;

[0060] When the inner support positioning of the central hole of the web 23 is required, first, the two side rings 6 are rotationally locked and slidably locked through the adjusting part. In this way, under the connection action of the first connecting rod 11 and the second connecting rod 12, the inner embedded ring 8 and the inserting tooth rings 7 are both in a state of limited rotation;

[0061] At this time, the central shaft 5 is driven to rotate by the external structure. Under the action of the threaded fit between it and the two gear shaper rings 7, the two gear shaper rings 7 will move away from each other, thereby driving the inner support arc plate 10 to move outward through the second connecting rod 12 and internally support and fix the central hole of the web 23. After the internal support and fixation, the second connecting rods 12 on both sides of the inner support arc plate 10 both move to coincide with its central axis, as Figure 7 shown in the state, completing the internal support and fixation of the web 23;

[0062] It is worth mentioning that after the internal support and fixation of the web 23 in this way, it provides the necessary prerequisite for the subsequent rotation of the second connecting rod 12, facilitating the subsequent testing.

[0063] In one relatively preferred embodiment, an implementation manner of the adjusting part is provided;

[0064] The adjusting part includes two sleeves 14, and the two sleeves 14 are respectively installed on the outer wall of the central shaft 5 on the opposite sides of the two side rings 6. It also includes an electric slider 15 installed on the outer wall of the shaft seat plate 2 and capable of vertical sliding adjustment. A connecting rod 16 is rotatably connected between the electric slider 15 and the sleeve 14. A locking plug 22 capable of sliding adjustment is also installed on the outer wall of the sleeve 14. A slot for the locking plug 22 to insert and lock is opened on the outer wall of the side ring 6.

[0065] Specifically, refer to Figure 3 , due to the rotational limit of the sleeve 14 by the electric slider 15 and the connecting rod 16, the sleeve 14 will not rotate with the central shaft 5, providing a basis for the adjustment of the gear shaper ring 7 and the side ring 6. At the same time, the design of the locking plug 22 enables the locking or unlocking between the side ring 6 and the sleeve 14, so that when the electric slider 15 moves vertically, it can drive the sleeve 14 to move axially through the connecting rod 16, thereby driving the side ring 6 to move and adjust, and further achieving the purpose of adjusting the included angle between the first connecting rod 11 and the second connecting rod 12;

[0066] At the same time, when the side ring 6 is unlocked from the sleeve 14, the rotation of the central shaft 5 can drive the side ring 6 and the inner support arc plate 10 and other structures to rotate together, so that the adjustment and rotation processes do not affect each other.

[0067] In one relatively preferred embodiment, an implementation manner of the detection part is provided;

[0068] The detection part includes a laser rangefinder 13 installed on the outer wall of the first connecting rod 11, and the plane where the first connecting rod 11 and the laser rangefinder 13 are located coincides with the plane where the axis of the central shaft 5 is located.

[0069] Specifically, refer to Figure 7, As can be seen from the above, after the inner support arc plate 10 fixes the central hole of the web 23, the second connecting rods 12 on both sides of the inner support arc plate 10 both move to coincide with its center axis. Therefore, when the position of the side ring 6 is adjusted through the sleeve 14, the first connecting rod 11 and the second connecting rod 12 will rotate. The rotation of the first connecting rod 11 can adjust the irradiation angle of the laser rangefinder 13 to determine whether to detect the web 23 or the gear ring 24. The position of the laser irradiation is preferably the edge position of the web 23 and the gear ring 24, so that the change will be more obvious and the detection result will be more accurate; while the rotation of the second connecting rod 12 rotates around the axis position of the inner support arc plate 10. Therefore, the pin shaft on it will move along the arc groove track on the inner support arc plate 10, and thus will not affect the position of the inner support arc plate 10 to ensure the coaxial fixation degree during its inner support;

[0070] In this way, by adjusting the positions of the two side rings 6, the laser irradiation position of the laser rangefinder 13 can be adjusted, and at the same time, it will not affect the inner support arc plate 10, which not only saves the addition of the structure, but also improves the detection accuracy.

[0071] It is worth mentioning that the laser rangefinder 13 can also be adjusted to a state parallel to the edge plane of the web 23 or the gear ring 24, so that the flatness difference between the two can also be detected to assist in judging the coaxiality detection between the two and further improve the accuracy of the detection result.

[0072] In one relatively preferred embodiment, an implementation manner of the outer clamping assembly is provided;

[0073] The outer clamping assembly includes a plurality of sliding grooves opened on the outer wall of the fixed ring plate 3 and distributed in a ring shape, and a slider 17 is slidably installed in each sliding groove. The clamping gear 18 is rotatably installed on the slider 17. The outer wall of the fixed ring plate 3 is also installed with a driving ring 19 that can be rotationally adjusted. The outer wall of the driving ring 19 close to the slider 17 is provided with a limit groove 21 designed in an arc shape, and a fixed pin 20 slidably installed in the limit groove 21 is fixed on the outer wall of the slider 17.

[0074] Specifically refer to Figure 1 、 Figure 3 and Figure 10 , by driving the driving ring 19 to rotate through an external structure, through the sliding fit between the limit groove 21 on it and the fixed pin 20 on the slider 17, the clamping gear 18 can be adjusted to move centripetally or centrifugally, so as to center and clamp the external teeth of the gear ring 24 to achieve the purpose of coaxial fixation of the gear ring 24, and at the same time provide a meshing transmission relationship for the subsequent detection of the gear ring 24.

[0075] In one of the more preferred embodiments, multiple sets of welding heads 25 are designed, and the rotation angle of the mounting ring 4 enables the solder joints welded by the multiple sets of welding heads 25 to form a complete circular solder joint. By designing multiple sets of welding heads 25, on the one hand, the welding speed can be increased, and at the same time, the influence of heat on the weld seam during welding can be reduced.

[0076] In one of the more preferred embodiments, the two shaft seat plates 2 can be adjusted to move relatively closer or farther away from each other. When they move away from each other, one of the shaft seat plates 2 is disengaged from the central shaft 5, and a servo motor for driving the central shaft 5 to rotate is installed on the other shaft seat plate 2.

[0077] See Figure 1 and Figure 2 , through the adjustment of the shaft seat plate 2, it is convenient to install and position the central shaft 5, the web 23 and the toothed ring 24, and to disassemble them after welding is completed.

[0078] A gear processing positioning and welding method, including the gear processing positioning and welding equipment, further includes the following steps:

[0079] S1: The to-be-processed web 23 and toothed ring 24 are transported between the two fixed ring plates 3 by an external hoisting device, and the central shaft 5 and its upper structure pass through the central hole of the web 23. Then, the inner support assembly makes a centrifugal movement adjustment relative to the axis of the central shaft 5 through multiple annularly distributed inner support arc plates 10 to internally support and fix the central hole of the web 23, completing the central positioning and fixing of the web 23.

[0080] S2: At the same time, the outer clamping assembly makes a centripetal movement adjustment relative to the center of the annular through groove through multiple clamping gears 18, so that the clamping gears 18 mesh with the teeth of the toothed ring 24 until the central positioning and fixing of the toothed ring 24 are completed.

[0081] S3: The central shaft 5 is driven to rotate by an external structure, so that the web 23 and the toothed ring 24 are driven to rotate relative to each other through the inner support assembly. At the same time, the detection part installed on the central shaft 5 emits ranging laser to the plane of the toothed ring 24, and whether there is an offset between the plane of the toothed ring 24 and the detection part is monitored through the change of the dynamic distance, so as to judge whether the toothed ring 24 is coaxial with the central shaft 5.

[0082] S4: After the detection is completed and the result is qualified, the mounting ring 4 located in the two annular through grooves rotates under the drive of an external mechanism. At the same time, the adjustment arm moves the welding head 25 to the weld position of the web 23 and the toothed ring 24. As the mounting ring 4 rotates, the welding head 25 welds the weld position of the web 23 and the toothed ring 24, completing the welding process.

[0083] S5: The detection is completed and the result is unqualified. Repeat the clamping processes of S1 and S2 above until the detection is qualified, and then start the welding process in S4.

[0084] After the detection in S3 is completed, it further includes step V1. In step V1, first drive the mounting ring 4 to rotate through an external drive structure, so that the welding head 25 preliminarily welds and fixes the web 23 and the gear ring 24 by spot welding at local parts thereof. Then drive the central shaft 5 to rotate again, so that the web 23 and the gear ring 24 rotate together, and keep the gear ring 24 in a meshing transmission state with the clamping gear 18. Detect the offset of the gear ring 24 in the dynamic meshing state through the ranging laser emitted by the detection part, so as to judge whether the coaxial state is maintained, and then perform the subsequent S4 or correction process.

[0085] It further includes step V2. After step V1 is completed, the multiple inner support arc plates 10 of the inner support assembly move centripetally to release the locking of the web 23. Then the clamping gear 18 rotates under the drive of an external structure, and drives the web 23 and the gear ring 24 to rotate through reverse transmission. At this time, the detection part on the central shaft 5 emits ranging laser to detect the offset of the central hole of the web 23 in the dynamic meshing state, so as to judge whether the coaxial state is maintained, and then perform the subsequent S4 or correction process.

[0086] The standard parts used in this embodiment can be directly purchased from the market. For the non-standard structural components described in the specification and drawings, they can also be directly processed without doubt according to the existing technical knowledge. At the same time, the connection methods of each component adopt the mature conventional means in the existing technology, and the machines, parts and equipment all adopt the conventional models in the existing technology, so no specific description will be made here.

[0087] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A gear processing positioning welding device, comprising a base (1), characterized in that: Also includes: Two fixed ring plates (3) are mounted on the base (1), and the centers of the two fixed ring plates (3) are each provided with an annular through groove; Two shaft seat plates (2) are respectively mounted on both sides of the fixed ring plate (3), a rotatable central shaft (5) is mounted between the two shaft seat plates (2), and the central shaft (5) passes through two annular through grooves and is coaxially arranged therewith; An inner support assembly mounted on the central shaft (5), the inner support assembly comprising a plurality of inner support arc plates (10) distributed in an annular shape and capable of being adjusted to move centripetally or centrifugally relative to the axis of the central shaft (5); An outer clamping assembly installed between two fixed ring plates (3), the outer clamping assembly comprising a plurality of clamping gears (18) that can be adjusted centrifugally or centrifugally relative to the center of the annular groove, and the clamping gears (18) can rotate along their own axes; A mounting ring (4) is mounted in the annular groove and is rotatable, and a welding head (25) is mounted on the mounting ring (4) via an adjusting arm; The detection part is installed on the central shaft (5), and the detection part can emit a distance measuring laser to the plane of the web (23) or the gear ring (24).

2. The gear processing positioning welding equipment according to claim 1, characterized in that: The inner support assembly comprises an inner ring (8) embedded and rotatably mounted on the outer wall of the central shaft (5); a plurality of inner support arc plates (10) are fixed to the annular side wall of the inner ring (8) by telescopic rods (9); two toothed rings (7) are also mounted on the outer wall of the central shaft (5) on both sides of the inner ring (8); the two toothed rings (7) are threadedly connected to the central shaft (5); and the toothed outer walls of the two toothed rings (7) are rotatably mounted with a second connecting rod (12); side rings (6) are also mounted on the outer wall of the central shaft (5) on both sides of the two toothed rings (7); and the outer walls of the two side rings (6) are rotatably mounted with a first connecting rod (11); the first connecting rod (11) and the second connecting rod (12) adjacent to each other are rotatably connected by a pin shaft, and the pin shaft is slidably mounted in an arc groove on the outer wall of the inner support arc plate (10); The inner support assembly also includes an adjustment portion capable of controlling the rotation locking and sliding adjustment of the two side rings (6).

3. The gear processing positioning welding equipment according to claim 2, characterized in that: The adjustment part comprises two sleeves (14), and the two sleeves (14) are respectively installed on the outer wall of the central axis (5) on the opposite sides of the two side rings (6), and also comprises an electric slider (15) installed on the outer wall of the shaft seat plate (2) and capable of vertical sliding adjustment, a connecting rod (16) is rotatably connected between the electric slider (15) and the sleeve (14), and a locking plug-in (22) capable of sliding adjustment is also installed on the outer wall of the sleeve (14), and a slot for the locking plug-in (22) to be inserted and locked is opened on the outer wall of the side ring (6).

4. The gear processing positioning welding equipment according to claim 2, characterized in that: The detection unit comprises a laser rangefinder (13) mounted on the outer wall of the first connecting rod (11), and the plane where the first connecting rod (11) and the laser rangefinder (13) are located coincides with the plane where the axis of the central axis (5) is located.

5. The gear processing positioning welding equipment according to claim 1, characterized in that: The outer clamping assembly comprises a plurality of slide grooves which are arranged in an annular shape and are opened on the outer wall of the fixed ring plate (3), and a slider (17) is slidably installed in each of the slide grooves. The clamping gear (18) is rotatably installed on the slider (17). A drive ring (19) which can be rotatably adjusted is also installed on the outer wall of the fixed ring plate (3). A limit groove (21) with an arc-shaped design is opened on the outer wall of the drive ring (19) close to the slider (17), and a fixing pin (20) which is slidably installed in the limit groove (21) is fixed on the outer wall of the slider (17).

6. The gear processing positioning welding equipment according to claim 1, characterized in that: The welding heads (25) are designed to have multiple groups, and the rotation angle of the mounting ring (4) can enable the welding points welded by the multiple groups of welding heads (25) to form complete circular welding points.

7. The gear processing positioning welding equipment according to claim 1, characterized in that: The two shaft seat plates (2) can be adjusted to be relatively close to or far away from each other, and when the two are adjusted to be far away from each other, one of the shaft seat plates (2) is separated from the central shaft (5), and a servo motor for driving the central shaft (5) to rotate is installed on the other shaft seat plate (2).

8. A gear processing positioning welding method, comprising the gear processing positioning welding equipment according to any one of claims 1 to 7, characterized in that: The following steps are also included: S1: The web (23) and the gear ring (24) to be processed are moved between two fixed ring plates (3) by external lifting equipment, and the central axis (5) is passed through the central hole of the web (23). Then, the inner support assembly is adjusted by centrifugal movement relative to the axis of the central axis (5) through a plurality of inner support arc plates (10) distributed in an annular shape, so as to perform inner support and fixation on the central hole of the web (23), thereby completing the central positioning and fixation of the web (23); S2: At the same time, the outer clamping assembly is adjusted to move centripetally relative to the center of the annular groove through a plurality of clamping gears (18), so that the teeth of the clamping gears (18) and the gear ring (24) are meshed with each other until the center positioning and fixing of the gear ring (24) is completed; S3: The central shaft (5) is driven to rotate by an external structure, thereby driving the web (23) and the gear ring (24) to rotate relative to each other through the inner support assembly, and at the same time, a detection unit installed on the central shaft (5) emits a distance measurement laser to the plane of the gear ring (24), and monitors whether the plane of the gear ring (24) is offset from the detection unit through the change of dynamic distance, so as to judge whether the gear ring (24) is coaxial with the central shaft (5); S4: the test is completed and the result is qualified. The mounting ring (4) located in the two annular grooves rotates under the drive of the external mechanism, and the adjusting arm moves the welding head (25) to the welding position of the web (23) and the gear ring (24). As the mounting ring (4) rotates, the welding head (25) welds the welding position of the web (23) and the gear ring (24), completing the welding process; S5: After the test is completed and the result is unqualified, the clamping process of S1 and S2 is repeated until the test is qualified, and then the welding process in S4 is started.

9. The gear processing positioning welding method according to claim 8, characterized in that: After the S3 detection is completed, step V1 is also included. In step V1, the mounting ring (4) is first driven to rotate by an external driving structure, so that the welding head (25) performs preliminary welding and fixing of the web (23) and the gear ring (24) by local spot welding, and then the central shaft (5) is driven to rotate again, so that the web (23) and the gear ring (24) rotate together, and the gear ring (24) and the clamping gear (18) are kept in a meshing transmission state, and the offset of the gear ring (24) in the dynamic meshing state is detected by the ranging laser emitted by the detection unit, so as to determine whether the coaxial state is maintained, and then the subsequent S4 or correction process is carried out.

10. The gear processing positioning welding method according to claim 9, characterized in that: It also includes step V2. After step V1 is completed, the multiple inner support arc plates (10) of the inner support assembly move centripetally to release the lock on the web (23). Then the clamping gear (18) rotates under the drive of the external structure and drives the web (23) and the gear ring (24) to rotate by reverse transmission. At this time, the detection part on the central axis (5) emits a ranging laser to detect the center hole offset of the web (23) in the dynamic meshing state, so as to determine whether the coaxial state is maintained, and then the subsequent S4 or correction process is carried out.

Images