Gear processing positioning welding equipment and welding method thereof

Abstract

The present invention discloses a gear processing positioning welding device and a welding method thereof, comprising a base, and also comprising: two fixed ring plates installed on the base, and the centers of the two fixed ring plates are each provided with an annular through groove; two shaft seat plates respectively installed on both sides of the fixed ring plates, a rotatable center shaft is installed between the two shaft seat plates, and the center shaft passes through the two annular through grooves and is coaxially arranged therewith; an inner support assembly installed on the center shaft, the inner support assembly is composed of a plurality of inner support arc plates distributed in an annular manner and capable of being adjusted to move centripetally or centrifugally relative to the axis of the center shaft; an outer clamping assembly installed between the two fixed ring plates; the present invention ensures the coaxiality of the web and the gear ring before welding through the dual positioning of the inner support assembly and the outer clamping assembly, and the above-mentioned precise preliminary positioning and dynamic detection can ensure the coaxial state of the web and the gear ring during the welding process, thereby improving the quality of the gear after welding.

Description

Technical Field

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

[0002] During the gear processing, for large gears, since it is difficult to cast them in one piece, split casting and assembly welding are often used. For example, for web-type gears, the web and gear ring are usually assembled and welded to reduce the difficulty of manufacturing.

[0003] Currently, existing welding devices, such as Chinese patent CN118720420B, disclose a laser welding device for large gear processing and its welding process. The laser welding device can accurately assemble and coaxially detect gear components, improve welding accuracy, and 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 gear ring, they are mainly fixed coaxially through static fixation. Since the gears need to be rotated dynamically after assembly and welding, if only static fixation and coaxiality detection are performed, there may still be coaxiality errors between the gear ring and the web, resulting in coaxial deviations when the gears are dynamically rotated, which in turn affects the quality of gear assembly and welding. Summary of the Invention

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

[0006] To achieve the above-mentioned object, the present invention provides the following technical solution: a gear processing positioning welding device, comprising a base, and further comprising:

[0007] Two fixed ring plates are mounted on the base, and the centers of the two fixed ring plates are each provided with an annular through groove;

[0008] Two shaft seat plates are respectively installed on both sides of the fixed ring plate, and a rotatable central shaft is installed between the two shaft seat plates. The central shaft passes through the two annular grooves and is coaxially arranged therewith;

[0009] An inner support assembly mounted on the central shaft, the inner support assembly comprising a plurality of inner support arc plates distributed in an annular shape and capable of centrifugal or centrifugal movement relative to the central shaft axis;

[0010] An outer clamping assembly mounted between the two fixed ring plates, the outer clamping assembly comprising a plurality of clamping gears capable of centrifugal or centrifugal adjustment relative to the center of the annular groove, and the clamping gears capable of rotating along their own axes;

[0011] A rotatable mounting ring is mounted in the annular groove, and a welding head is mounted on the mounting ring via an adjusting arm;

[0012] The detection part is installed on the central axis and can emit ranging laser to the plane of the web or gear ring.

[0013] Preferably, the inner support assembly includes an inner embedded ring rotatably mounted on the outer wall of the central shaft, a plurality of the inner support arc plates are fixed to the annular side wall of the inner embedded ring by telescopic rods, two splined rings are further mounted on the outer wall of the central shaft on both sides of the inner embedded ring, and the two splined rings are threadedly connected to the central shaft, and the splined outer walls of the two splined rings are rotatably mounted with a second connecting rod, side rings are further mounted on the outer wall of the central shaft on both sides of the two splined rings, and the outer walls of the two side rings are rotatably mounted with a first connecting rod, the adjacent first connecting rod and second connecting rod are rotatably connected by a pin shaft, and the pin shaft is slidably mounted in the arc groove of the outer wall of the inner support arc plate;

[0014] The inner support assembly also includes an adjusting portion capable of controlling 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 can be vertically slid and adjusted. A connecting rod is rotatably connected between the electric slider and the sleeve. The outer wall of the sleeve is also installed with a locking plug-in that can be slidably adjusted, and the outer wall of the side ring is provided with a slot for the locking plug-in to be inserted and locked.

[0016] Preferably, the detection unit 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 axis is located.

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

[0018] Preferably, the welding heads are designed to have multiple groups, and the rotation angle of the mounting ring can enable the welding points welded by the multiple groups of welding heads to form complete circular welding points.

[0019] Preferably, the two shaft seat plates can be adjusted relatively close to or away from each other, and when the two are adjusted 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 welding method, comprising the gear processing positioning welding equipment, further comprising the following steps:

[0021] S1: The web and gear ring to be processed are moved between two fixed ring plates by external lifting equipment, and the central shaft is passed through the central hole of the web. Then, the inner support assembly is adjusted by centrifugal movement relative to the axis of the central shaft through multiple annularly distributed inner support arc plates to internally support and fix the central hole of the web, completing the central positioning and fixation of the web;

[0022] S2: At the same time, the outer clamping assembly is adjusted to move centripetally relative to the center of the annular groove through multiple clamping gears, so that the clamping gears and the teeth of the gear ring are engaged with each other until the center positioning of the gear ring is completed;

[0023] S3: The central shaft is driven to rotate by an external structure, thereby driving the web and the gear ring to rotate relative to each other through the internal support assembly. At the same time, the detection unit installed on the central shaft emits a ranging laser to the plane of the gear ring. The dynamic distance change is used to monitor whether there is any deviation between the plane of the gear ring and the detection unit, thereby determining whether the gear ring is coaxial with the central shaft.

[0024] S4: The test is completed and the result is qualified. The mounting ring located in the two annular grooves rotates under the drive of the external mechanism. At the same time, the adjustment arm moves the welding head to the weld position between the web and the gear ring. As the mounting ring rotates, the welding head welds the weld position between the web and the gear ring, completing the welding process.

[0025] 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.

[0026] Preferably, after the S3 detection is completed, step V1 is also included. In step V1, the mounting ring is first driven to rotate by an external driving structure, so that the welding head performs preliminary welding and fixing of the web and the gear ring by local spot welding, and then the central shaft is driven to rotate again to rotate the web and the gear ring together, and the gear ring and the clamping gear are kept in a state of meshing transmission, and the offset of the gear ring in the dynamic meshing state is detected by the ranging laser emitted by the detection part to determine whether the coaxial state is maintained, and then the subsequent S4 or correction process is carried out.

[0027] Preferably, step V2 is also included. After step V1 is completed, the multiple inner support arc plates of the inner support assembly move centripetally to release the lock on the web, and then the clamping gear rotates under the drive of the external structure, and drives the web and the gear ring to rotate through reverse transmission. At this time, the detection part on the central axis emits a ranging laser to detect the center hole offset of the web 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.

[0028] Compared with the prior art, the present invention has the following beneficial effects:

[0029] 1. The present invention ensures the coaxiality of the web and the gear ring before welding through the dual positioning of the inner support component and the outer clamping component. This precise initial positioning and dynamic detection can ensure the coaxial state of the web and the gear ring during the welding process, thereby improving the quality of the gear after welding.

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

[0031] Figure 1 This is a schematic diagram of the three-dimensional structure of the web and the gear ring after being clamped;

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

[0033] Figure 3 It is a side cutaway perspective view of the present invention;

[0034] Figure 4 This is a diagram showing the central shaft and the upper structure of the present invention after being fixed to the web;

[0035] Figure 5 It is an enlarged perspective view of the central axis of the present invention and the structure thereon;

[0036] Figure 6 This is a disassembly diagram of the web and gear ring of the present invention;

[0037] Figure 7 For the present invention Figure 5 Schematic diagram of the perspective;

[0038] Figure 8 An exploded perspective view of the gear shaping ring, the inner ring and the central shaft of the present invention;

[0039] Figure 9 Schematic diagram of the inner supporting arc plate of the present invention in a retracted state;

[0040] Figure 10This is a schematic diagram of the clamping gear after fixing the gear ring according to the present invention.

[0041] In the figure: 1. Base; 2. Shaft seat plate; 3. Fixed ring plate; 4. Mounting ring; 5. Center shaft; 6. Side ring; 7. Gear 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. Drive ring; 20. Fixed pin; 21. Limiting groove; 22. Locking plug-in; 23. Web; 24. Gear ring; 25. Welding head. DETAILED DESCRIPTION

[0042] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0043] See also Figures 1 to 10 The present invention provides a technical solution: a gear processing positioning welding device, including a base 1, and also including:

[0044] Two fixed ring plates 3 are mounted on the base 1, and an annular through groove is formed in the center of the two fixed ring plates 3;

[0045] Two shaft base 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 base plates 2. The central shaft 5 passes through the two annular grooves and is coaxially arranged therewith.

[0046] The inner support assembly is mounted on the central shaft 5, and the inner support assembly is composed of a plurality of inner support arc plates 10 distributed in an annular shape and capable of centrifugal or centrifugal movement relative to the axis of the central shaft 5;

[0047] The outer clamping assembly is installed between the two fixed ring plates 3. The outer clamping assembly includes 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;

[0048] 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;

[0049] The detection part is installed on the central shaft 5 and can emit a distance measuring laser to the plane of the web 23 or the gear ring 24.

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

[0051] The web 23 and gear ring 24 to be processed are moved between the two fixed ring plates 3 by external lifting equipment, and the central shaft 5 and the structure thereon pass through the central hole of the web 23. Then, the inner support assembly is adjusted to move 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, thereby completing the central positioning and fixation of the web 23. 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 clamping gears 18 and the teeth of the gear ring 24 engage with each other until the central positioning and fixation of the gear ring 24 are completed. At this point, the static positioning and fixation of the web 23 and the gear ring 24 are completed.

[0052] Then, a dynamic test of the coaxiality of the two is conducted. First, the central shaft 5 is driven to rotate by the external structure, thereby driving the web 23 and the gear ring 24 to rotate relative to each other through the internal support assembly. At the same time, the detection unit installed on the central shaft 5 emits a ranging laser to the plane of the gear ring 24. The dynamic distance change is used to monitor whether there is any deviation between the plane of the gear ring 24 and the detection unit. Through dynamic detection, it is determined whether the gear ring 24 is coaxial with the central shaft 5.

[0053] After the inspection is completed, the mounting ring 4 is driven to rotate by the external driving structure, so that the welding head 25 preliminarily welds and fixes 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 maintain a state of meshing transmission, and the ranging laser emitted by the detection part is used to detect the offset of the gear ring 24 in the dynamic meshing state to determine 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 dynamic meshing transmission, and since the two are only connected by spot welding, they can have a certain relative displacement space after being subjected to stress beyond the range. In this way, if the two are not on the same axis, the spot welding position between the gear ring 24 and the web 23 will be damaged due to the action of external stress, so as to achieve the purpose of dynamically detecting the coaxiality of the two. At the same time, it is also convenient to re-correct the web 23 and the gear ring 24 to avoid difficulty in correcting them after direct welding.

[0054] Moreover, it is worth mentioning that after the above-mentioned inspection is completed, the multiple inner support arc plates 10 of the inner support assembly can be moved centripetally to release the lock on the web 23, and then the clamping gear 18 is rotated under the drive of the external structure, and the web 23 and the gear ring 24 are driven to rotate by reverse transmission. At this time, the detection part on the central shaft 5 emits a ranging laser to detect the center hole offset of the web 23 in the dynamic meshing state. In this way, by performing a coaxiality test on both the web 23 and the gear ring 24, the test results can be made more accurate, so as to ensure the coaxial accuracy before welding processing and further ensure the quality of the gear after welding.

[0055] After the inspection is completed, the mounting ring 4 located in the two annular grooves rotates under the drive of an external mechanism, and at the same time the adjusting arm moves the welding head 25 to the weld position of the web 23 and the gear ring 24. As the mounting ring 4 rotates, the welding head 25 welds the weld position of the web 23 and the gear ring 24, and the final welding forming of the gear is completed.

[0056] In one of the more preferred embodiments, an implementation of an inner support assembly is provided;

[0057] The inner support assembly includes an inner ring 8 embedded and rotatably mounted on the outer wall of the central shaft 5, and multiple inner support arc plates 10 are fixed to the annular side walls of the inner ring 8 by telescopic rods 9. Two spline rings 7 are also installed on the outer wall of the central shaft 5 on both sides of the inner ring 8, and the two spline rings 7 are threadedly connected to the central shaft 5, and the spline outer walls of the two spline rings 7 are rotatably mounted with second connecting rods 12. Side rings 6 are also installed on the outer wall of the central shaft 5 on both sides of the two spline rings 7, and the outer walls of the two side rings 6 are rotatably mounted with first connecting rods 11. The adjacent first connecting rods 11 and second connecting rods 12 are rotatably connected by pins, and the pins are slidably mounted in the arc grooves on the outer walls of the inner support arc plates 10;

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

[0059] For details, please refer to Figure 7 In the initial state, the two gear rings 7 are in a mutually crossed state. At this time, under the connection of the first connecting rod 11 and the second connecting rod 12, the pin at the connection makes the inner arc plate 10 close to the central axis 5, which provides enough space for the center hole of the web 23 to be inserted. The specific state is as follows Figure 9 As shown;

[0060] When the center hole of the web 23 needs to be positioned internally, the two side rings 6 are first locked in rotation and in sliding manner through the adjustment portion. In this way, under the connection between the first connecting rod 11 and the second connecting rod 12, the embedded ring 8 and the gear ring 7 are kept in a limited rotation state.

[0061] At this time, the central shaft 5 is driven to rotate by the external structure, and under the action of the threaded fit between it and the two spline rings 7, the two spline 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 center hole of the web 23. After the internal support is fixed, the second connecting rods 12 on both sides of the inner support arc plate 10 are moved to coincide with the central axis thereof. Figure 7 In the state shown, the internal support fixation of the web 23 is completed;

[0062] It is worth mentioning that after the web 23 is fixed internally, the necessary conditions for the subsequent rotation of the second connecting rod 12 are provided, so as to facilitate the subsequent testing.

[0063] In one of the more preferred embodiments, an implementation of an adjustment portion is provided;

[0064] The adjustment part includes two sleeves 14, and the two sleeves 14 are respectively installed on the outer walls of the central axis 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 base 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-in 22 that can be slidably adjusted 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.

[0065] For details, please refer to Figure 3 Since the electric slider 15 and the connecting rod 16 limit the rotation of the sleeve 14, the sleeve 14 will not rotate with the central shaft 5, providing a basis for the adjustment of the gear ring 7 and the side ring 6. At the same time, the design of the locking plug 22 can lock or unlock 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 and adjust along the axial direction through the connecting rod 16, and then drive the side ring 6 to move and adjust, thereby achieving the purpose of adjusting the angle between the first connecting rod 11 and the second connecting rod 12;

[0066] At the same time, when the side ring 6 and the sleeve 14 are unlocked, 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 of the more preferred embodiments, an implementation of a detection unit is provided;

[0068] The detection unit 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 axis 5 is located.

[0069] For details, please refer to Figure 7, it can be seen from the above content that after the inner supporting arc plate 10 is fixed to the center hole of the web 23, the second connecting rods 12 on both sides of the inner supporting arc plate 10 are moved to coincide with the central axis thereof. Therefore, when the position of the side ring 6 is adjusted by the sleeve 14, the first connecting rod 11 and the second connecting rod 12 will rotate, wherein the rotation of the first connecting rod 11 can adjust the irradiation angle of the laser rangefinder 13, depending on whether the web 23 or the gear ring 24 is to be detected, wherein the position of the laser irradiation is preferentially 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; and the rotation of the second connecting rod 12 is based on the axial position of the inner supporting arc plate 10, so the pin shaft thereon will move along the arc groove track on the inner supporting arc plate 10, and thus will not affect the position of the inner supporting arc plate 10, so as to ensure its coaxial fixation during internal 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 without affecting the inner support arc plate 10, which not only saves the addition of structure but also improves the accuracy of detection.

[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 be detected to assist in judging the coaxiality between the two and further improve the accuracy of the detection results.

[0072] In one of the more preferred embodiments, an implementation of an outer clamping assembly is provided;

[0073] The outer clamping assembly includes a plurality of slide 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 slide groove, and the clamping gear 18 is rotatably installed on the slider 17. The outer wall of the fixed ring plate 3 is also equipped with a drive ring 19 that can be rotated and adjusted. The drive ring 19 is provided with an arc-shaped limit groove 21 on the outer wall near the slider 17, and the outer wall of the slider 17 is fixed with a fixing pin 20 that is slidably installed in the limit groove 21.

[0074] Specific reference Figure 1 、 Figure 3 and Figure 10 The driving ring 19 is driven to rotate by the external structure, and the sliding fit between its upper limit groove 21 and the fixed pin 20 on the slider 17 can enable the clamping gear 18 to achieve centripetal or centrifugal movement adjustment, thereby clamping and positioning the external teeth of the gear ring 24 in the center, so as to achieve the purpose of coaxial fixation of the gear ring 24, and also provide a meshing transmission relationship for the subsequent detection of the gear ring 24.

[0075] In one of the more preferred embodiments, multiple groups of welding heads 25 are designed, and the rotation angle of the mounting ring 4 can enable the welds welded by the multiple groups of welding heads 25 to form complete circular welds. By designing multiple groups of welding heads 25, the welding speed can be increased on the one hand, and the influence of heat on the weld during welding can also be reduced.

[0076] In one of the more preferred embodiments, the two shaft seat plates 2 can be adjusted relatively close to or away from each other, and when the two are adjusted away from each other, one of the shaft seat plates 2 is disengaged from the center shaft 5, and the other shaft seat plate 2 is equipped with a servo motor for driving the center shaft 5 to rotate.

[0077] See Figure 1 and Figure 2 By adjusting the shaft seat plate 2, the installation and positioning of the center shaft 5, the web 23 and the gear ring 24 can be facilitated, as well as the disassembly after welding is completed.

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

[0079] S1: The web 23 and gear ring 24 to be processed are moved between the two fixed ring plates 3 using external lifting equipment, and the central shaft 5 and the structure above it are 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 shaft 5 using 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 fixation of the web 23.

[0080] S2: At the same time, the outer clamping assembly is adjusted to move centripetally relative to the center of the annular groove through the multiple clamping gears 18, so that the clamping gears 18 and the teeth of the gear ring 24 engage with each other until the center positioning of the gear ring 24 is completed;

[0081] S3: The central shaft 5 is driven to rotate by the external structure, thereby driving the web 23 and the gear ring 24 to rotate relative to each other through the internal support assembly. At the same time, the detection unit installed on the central shaft 5 emits a ranging laser to the plane of the gear ring 24. The dynamic distance change is used to monitor whether there is any deviation between the plane of the gear ring 24 and the detection unit, thereby determining whether the gear ring 24 is coaxial with the central shaft 5.

[0082] 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. At the same time, the adjustment arm moves the welding head 25 to the weld position between the web 23 and the gear ring 24. As the mounting ring 4 rotates, the welding head 25 welds the weld position between the web 23 and the gear ring 24, completing the welding process.

[0083] 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.

[0084] 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 part to determine whether the coaxial state is maintained, and then the subsequent S4 or correction process is carried out.

[0085] 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, and 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 through reverse transmission. At this time, the detection part on the central shaft 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.

[0086] The standard parts used in this embodiment can be purchased directly from the market, and the non-standard structural components recorded in the specification and drawings can also be directly processed according to existing technical common sense without any doubt. At the same time, the connection method of each component adopts the mature conventional means in the existing technology, and the machinery, parts and equipment all adopt conventional models in the existing technology, so no specific description will be given here.

[0087] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the 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 an annular groove is provided in the center of each of the two fixed ring plates (3); two shaft seat plates (2) are respectively mounted on both sides of the fixed ring plates (3), a rotatable central shaft (5) is mounted between the two shaft seat plates (2), and the central shaft (5) passes through the two annular grooves and is coaxially arranged therewith; an inner support assembly is mounted on the central shaft (5), and the inner support assembly is composed of a plurality of inner support arc plates (10) that are distributed in an annular shape and can be adjusted to move centripetally or centrifugally relative to the axis of the central shaft (5); An outer clamping assembly is installed between two fixed ring plates (3), the outer clamping assembly includes 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 installed in the annular groove and can rotate, and a welding head (25) is installed on the mounting ring (4) through an adjustment arm; a detection part is installed on the central shaft (5), and the detection part can emit a distance measurement laser to the plane of the web (23) or the gear ring (24); The inner support assembly includes an inner ring (8) embedded and rotatably mounted on the outer wall of the central shaft (5), and multiple inner support arc plates (10) are fixed to the annular side wall of the inner ring (8) through telescopic rods (9). Two toothed rings (7) are also installed on the outer wall of the central shaft (5) on both sides of the inner support ring (8), and 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 installed 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), and the adjacent first connecting rod (11) and second connecting rod (12) are rotatably connected by a pin shaft, and the pin shaft is slidably mounted in the arc groove of the outer wall of the inner support arc plate (10); the inner support assembly also includes an adjustment part that can control the rotation locking and sliding adjustment of the two side rings (6); The adjusting portion comprises two sleeves (14), and the two sleeves (14) are respectively mounted on the outer walls of the central shaft (5) on opposite sides of the two side rings (6), and further comprises an electric slider (15) mounted on the outer wall of the shaft base plate (2) and capable of vertical sliding adjustment, a connecting rod (16) being rotatably connected between the electric slider (15) and the sleeves (14), a locking plug-in (22) capable of sliding adjustment is also mounted on the outer wall of the sleeve (14), and a slot for the locking plug-in (22) to be inserted and locked is provided on the outer wall of the side ring (6).

2. The gear processing positioning welding equipment according to claim 1, characterized in that: The detection unit includes 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.

3. The gear processing positioning welding equipment according to claim 1, characterized in that: The outer clamping assembly includes a plurality of slide grooves which are opened on the outer wall of the fixed ring plate (3) and are distributed in an annular shape, and a slider (17) is slidably installed in each of the slide grooves, and 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) which can be rotatably adjusted. The driving ring (19) is provided with an arc-shaped limiting groove (21) near the outer wall of the slider (17), and a fixing pin (20) is fixed on the outer wall of the slider (17) and is slidably installed in the limiting groove (21).

4. 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.

5. 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 away from each other, and when the two are adjusted to be 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).

6. A gear processing positioning welding method, comprising the gear processing positioning welding equipment according to any one of claims 1 to 5, characterized in that: The following steps are also included: S1: The web (23) and the gear ring (24) to be processed are moved between the two fixed ring plates (3) by external lifting equipment, and the central shaft (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 shaft (5) through a plurality of inner support arc plates (10) distributed in an annular shape, so as to internally support and fix the central hole of the web (23), thereby completing the center positioning and fixing 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) engage 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 the external structure, thereby driving the web (23) and the gear ring (24) to rotate relative to each other through the internal support assembly. At the same time, the detection unit installed on the central shaft (5) emits a distance measurement laser to the plane of the gear ring (24). The dynamic distance change is used to monitor whether the plane of the gear ring (24) is offset from the detection unit, thereby determining 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. At the same time, 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.

7. The gear processing positioning welding method according to claim 6, 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 on 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 state of meshing transmission, and the offset of the gear ring (24) in the dynamic meshing state is detected by the ranging laser emitted by the detection part to determine whether the coaxial state is maintained, and then the subsequent S4 or correction process is carried out.

8. The gear processing positioning welding method according to claim 7, 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 shaft (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.

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