A welding device for producing oil film bearing bushings

Abstract

The present invention discloses a welding device for producing oil film bearing bushings, comprising a welding frame, wherein an adjusting mechanism is arranged on the welding frame, the receiving frame is rotatably connected to the welding frame, the rotating mechanism is cooperatively connected to the receiving frame, a plurality of guide rods are arranged, and the plurality of guide rods are respectively mounted on the lifting frame, the design of the adjusting mechanism cleverly solves the problem of precise positioning in the welding process of the oil film bearing bushings, and significantly improves the welding accuracy and efficiency, and through the cooperation of the receiving frame and the lifting frame, combined with the adjustment ability of the differential bolt, the coarse adjustment of the position between the sleeve body and the connecting plate is realized, the setting of the guide rod ensures the vertical movement of the lifting frame, and ensures the accuracy of the adjustment, the combined design of the fixed sleeve, the push rod and the push plate provides stable and reliable support for the sleeve body, and the design of the internal rod and the friction plate, combined with the precise cooperation of the threaded block and the transverse rod, realizes the precise adjustment of the small distance.

Description

Technical Field

[0001] The present invention relates to the technical field of bushing welding, and more particularly to a welding device for producing bushings of oil film bearings. Background Art

[0002] As a key mechanical component, the manufacturing process of oil film bearing bushings has extremely strict requirements on precision. Such bushings are usually composed of two main parts: a sleeve body and a connecting plate, which need to be precisely connected through welding. However, existing welding equipment often faces severe challenges when handling such high-precision components. Since oil film bearings require very high precision during operation, the relative position between the sleeve body and the connecting plate must be kept extremely precisely aligned during the manufacturing process of their bushings. This precision requirement exceeds the standards of ordinary mechanical parts, and therefore places higher requirements on the performance of welding equipment.

[0003] However, most welding equipment on the market today is unable to meet such stringent precision requirements when processing oil film bearing bushings. These devices often fail to ensure perfect alignment between the sleeve and the connecting plate when welding the two components. Even a small deviation may result in a significant drop in the performance of the final product, affecting the operating efficiency and service life of the bearing. This lack of precision not only increases the scrap rate in the production process, but may also cause unexpected failures in the finished bearing during use, posing potential safety hazards and economic losses to users. Summary of the invention

[0004] 1. Technical issues to be resolved

[0005] In view of the problems existing in the prior art, the present invention provides a welding device for producing oil film bearing bushings to solve the technical problems mentioned in the background technology.

[0006] (II) Technical solution

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a welding device for producing oil film bearing bushings, comprising a welding frame, the welding frame is provided with an adjustment mechanism, the adjustment mechanism comprises a rotating mechanism, a receiving frame, a lifting frame, a guide rod, a differential bolt, a fixing sleeve, a push rod, a push plate, an internal rod, a friction plate, a threaded block, a transverse rod, a push spring and a fine-tuning mechanism, the receiving frame is rotatably connected to the welding frame, the rotating mechanism is cooperatively connected to the receiving frame, a plurality of guide rods are provided, and the plurality of guide rods are respectively mounted on the lifting frame, the plurality of guide rods are respectively slidably connected to the lifting frame, and the differential bolt The bolts are threadedly connected to the lifting frame and the receiving frame respectively, the fixed sleeve is installed on the lifting frame, the push rod is slidably connected in the fixed sleeve, a push plate is coaxially installed on the push plate, the inner rod is coaxially installed on the push rod, a plurality of fitting grooves are evenly spaced on the side wall of the fixed sleeve, the threaded block is slidably connected in the fitting groove, a plurality of transverse holes are opened on the threaded block, each of the transverse holes is slidably connected to a transverse rod, friction plates are installed on the plurality of transverse rods, each of the transverse rods is respectively sleeved with a push spring, the two ends of the push spring respectively abut against the friction plate and the threaded block, the fine-tuning mechanism is installed on the fixed sleeve, and the friction plate fits on the side wall of the inner rod.

[0008] Preferably, the plurality of fitting grooves are symmetrically arranged in the fixed sleeve, the friction plates at the upper and lower ends are respectively fitted on the side walls of the inner rod, and the rotating sleeves are respectively fitted on the threaded blocks at the upper and lower ends, and tapered bars are respectively provided on the inner walls of the two rotating sleeves, and the plurality of threaded blocks are respectively threadedly connected to the tapered bars. This design realizes precise upper and lower symmetrical adjustment, the fit between the friction plate and the inner rod provides a stable friction force, and the cooperation between the rotating sleeve and the tapered bar ensures the precise movement of the threaded block, thereby improving the adjustment accuracy and stability, and laying the foundation for high-precision welding of oil film bearing bushings.

[0009] Preferably, the two rotating sleeves are arranged with the same direction of thread, and the rotating sleeve and the threaded block at the same end have the same slope as the fitting groove. This design ensures the consistency and synchronization of the adjustment at the upper and lower ends. Through the unified slope design, the accuracy of the adjustment process is achieved, avoiding the unevenness or deviation that may occur during the adjustment process, thereby ensuring the high precision requirements during the welding process of the oil film bearing bushing.

[0010] Preferably, each of the threaded blocks is respectively provided with an inclined plate, and a plurality of inclined grooves are symmetrically provided at the upper and lower ends of the fixed sleeve, the inclined plate is slidably connected in the inclined groove, and the slopes of the inclined groove and the fitting groove are the same as those of the threaded block. This design further enhances the stability and accuracy of the adjustment. The cooperation between the inclined plate and the inclined groove not only provides additional guiding effect, but also ensures the stability of the threaded block during movement. At the same time, the unified slope design ensures the coordination and consistency of the entire device, thereby improving the precision control during the welding process of the oil film bearing bushing.

[0011] Preferably, the upper and lower ends of the two rotating sleeves are respectively provided with an inner nest and an insertion ring, the inner nest is provided with an inner groove, the fixed sleeve is provided with an extension ring, the extension ring is rotatably connected in the inner groove, the upper and lower ends of the fixed sleeve are respectively provided with positioning plates, and the insertion ring is rotatably connected in the positioning plate. This design solves the connection problem between the rotating sleeve and the fixed sleeve. Through the combination of the inner nest, the insertion ring and the positioning plate, the free rotation of the rotating sleeve is guaranteed, and the stability of the entire device is ensured, providing a reliable mechanical basis for the precise adjustment during the welding process of the oil film bearing bushing.

[0012] Preferably, the fine-tuning mechanism includes a telescopic rod and a bidirectional gear, and the two positioning plates are respectively provided with a plurality of rotating holes at equal intervals, and a telescopic rod is rotatably installed in each rotating hole, and a bidirectional gear is installed on the telescopic rod, and external gears are coaxially provided on the two rotating sleeves, and the bidirectional gears are meshed with the external gears. Springs are respectively sleeved at both ends of the telescopic rod, and a thrust bearing is provided on the end of the spring close to the positioning plate, and the thrust bearing is slidably connected to the telescopic rod, and the thrust bearing abuts against the positioning plate. This design realizes the core function of the fine-tuning mechanism, and precise control of the rotating sleeve is achieved through the cooperation of the telescopic rod and the bidirectional gear. The setting of the spring and the thrust bearing provides the necessary self-centering effect, ensuring the smoothness and precision of the fine-tuning process, thereby meeting the adjustment requirements during the welding process of the oil film bearing bushing.

[0013] Preferably, limiting grooves are respectively provided at both ends of the fixed sleeve, and adjusting disks are rotatably provided in the two limiting grooves. A plurality of reducing grooves are respectively provided on each adjusting disk. Round heads are respectively provided at both ends of the telescopic rod, and the reducing grooves abut against the round heads. This design increases the controllability of the fine-tuning mechanism. Through the cooperation of the adjusting disk and the reducing groove, the operator can accurately control the working state of the telescopic rod, thereby achieving more precise adjustment, adapting to the welding requirements of oil film bearing bushings of different specifications, and improving the adaptability and precision control ability of the equipment.

[0014] Preferably, internal gears are respectively meshed on the plurality of bidirectional gears, an intermediate sleeve is coaxially provided outside the internal gears, a hexagonal groove is provided on the outer wall of the intermediate sleeve, and a follower plate is respectively provided on each of the bidirectional gears, a follower groove is provided in the internal gears, and the follower plate fits in the follower groove. This design further optimizes the transmission device of the fine-tuning mechanism, and achieves more precise and stable transmission through the cooperation of the internal gears, the intermediate sleeve and the follower plate. The design of the hexagonal groove facilitates operation and maintenance, thereby improving the adjustment accuracy and operational convenience during the welding process of the oil film bearing bushing.

[0015] Preferably, a sleeve is slidably provided on the receiving frame, the sleeve abuts against the push plate, and a connecting plate is provided on the receiving frame, and the connecting plate is sleeved on the sleeve. This design provides stable and reliable support and positioning for the oil film bearing bushing assembly, ensuring that the relative position of the sleeve and the connecting plate remains accurate during the welding process, laying the foundation for high-quality welding, and also facilitating the operator to install and adjust the components.

[0016] Preferably, the rotating mechanism includes a reducer, a servo motor, a driving wheel, a driven wheel, a welding gun, a pitch gear and a semicircular gear, the reducer is mounted on a receiving frame, the servo motor is connected to the reducer, the driving wheel is mounted on the protruding end of the reducer, the driven wheel is rotatably connected to the receiving frame, the driving wheel is meshed with the driven wheel, a plurality of universal sleeves are provided on the driven wheel, each of the universal sleeves is provided with a universal ball for friction rotation, a welding gun is respectively mounted on the universal ball, the semicircular gear is mounted on the receiving frame, the pitch gear is rotatably connected to the welding frame, and the pitch gear is meshed with the semicircular gear. This design realizes multi-directional control of the welding process, and the stable rotation of the welding gun is realized through the precise control of the reducer and the servo motor, combined with the transmission of the driving wheel and the driven wheel. The design of the universal sleeve and the universal ball provides the flexible adjustment capability of the welding gun position, and the cooperation of the semicircular gear and the pitch gear further increases the adjustability of the welding angle, and comprehensively improves the accuracy and efficiency of the welding of the oil film bearing bushing.

[0017] (III) Beneficial effects

[0018] Compared with the prior art, the present invention provides a welding device for producing oil film bearing bushings, which has the following beneficial effects:

[0019] The design of the adjusting mechanism in the present invention solves the problem of precise positioning during the welding process of the oil film bearing bushing, and significantly improves the welding accuracy and efficiency. Through the cooperation of the receiving frame and the lifting frame, combined with the adjustment ability of the differential bolt, the coarse adjustment of the position between the sleeve body and the connecting plate is realized. The setting of the guide rod ensures the vertical movement of the lifting frame and ensures the accuracy of the adjustment. The combined design of the fixed sleeve, the push rod and the push plate provides a stable and reliable support for the sleeve body. The design of the internal rod and the friction plate, combined with the precise cooperation of the threaded block and the transverse rod, realizes the precise adjustment of small distances. This adjustment mechanism not only meets the requirements of high-precision welding of the oil film bearing bushing, but also significantly improves the flexibility and accuracy of the operation, and lays a solid foundation for the production of high-quality oil film bearing bushings. The introduction of the fine-tuning mechanism further enhances the precision control capability of the welding equipment, and provides key support for the precise welding of the oil film bearing bushing. The ingenious combination of the telescopic rod and the bidirectional gear, combined with the precise meshing of the external gear and the internal gear, realizes the synchronous and precise rotation of the rotating sleeve, and the adjusting plate The design of the reducer and the variable diameter groove enables the operator to flexibly control the working state of the telescopic rod, thereby realizing independent or synchronous adjustment of the rotating sleeves at the upper and lower ends. The cooperation of the follower plate and the follower groove ensures the smoothness and precision of the adjustment process. This design not only improves the accuracy and controllability of fine-tuning, but also enhances the adaptability of the equipment. Through this precise fine-tuning mechanism, the operator can realize the precise adjustment of the position between the sleeve body and the connecting disk, thereby ensuring the welding quality and improving the consistency and reliability of the product; the design of the rotating mechanism ensures the continuity of the welding of the oil film bearing bushing and improves the uniformity and efficiency of the welding. The combination of the reducer and the servo motor realizes the stable rotation of the welding gun through the precise transmission of the driving wheel and the driven wheel. The setting of multiple welding guns, combined with the flexible adjustment mechanism of the universal sleeve and the universal ball, enables the welding process to cover multiple positions at the same time, ensuring the comprehensiveness and uniformity of the welding. The design of the semicircular gear and the pitch gear enables the entire receiving frame to be adjusted in angle, which not only facilitates the cleaning of the welding slag, but also increases the flexibility of the welding process. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of a welding device used for producing oil film bearing bushings in the present invention;

[0021] Figure 2 It is a schematic diagram of an exploded cross-sectional structure of a welding device used for producing oil film bearing bushings in the present invention;

[0022] Figure 3 It is a cross-sectional structural schematic diagram of the receiving frame in the present invention;

[0023] Figure 4 It is a cross-sectional structural schematic diagram of the lifting frame in the present invention;

[0024] Figure 5It is a schematic cross-sectional structural diagram of the intermediate sleeve in the present invention;

[0025] Figure 6 It is a schematic cross-sectional structural diagram of the internal rod and the fixing sleeve in the present invention;

[0026] Figure 7 It is a cross-sectional structural schematic diagram of the threaded block and the fixing sleeve in the present invention;

[0027] Figure 8 It is a structural schematic diagram of the thread block in the present invention;

[0028] Fig. 9 It is a cross-sectional structural schematic diagram of the fixing sleeve in the present invention;

[0029] Fig.10 It is a structural schematic diagram of the rotating sleeve in the present invention.

[0030] In the figure: 1, welding frame; 2, receiving frame; 3, lifting frame; 4, guide rod; 5, differential bolt; 6, fixing sleeve; 7, push rod; 8, push plate; 9, internal rod; 10, friction plate; 11, threaded block; 12, transverse rod; 13, push spring; 14, fitting groove; 15, transverse hole; 16, rotating sleeve; 17, tapered strip; 18, oblique plate; 19, oblique groove; 20, inner nesting; 21, insertion ring; 22, embedded groove; 23, extension ring; 24, positioning plate; 25, telescopic rod; 26, two-way gear Wheel; 27, rotating hole; 28, external gear; 29, spring; 30, thrust bearing; 31, limit groove; 32, adjusting plate; 33, reducing groove; 34, round head; 35, internal gear; 36, intermediate sleeve; 37, hexagonal groove; 38, follower plate; 39, follower groove; 40, sleeve body; 41, reducer; 42, servo motor; 43, driving wheel; 44, driven wheel; 45, welding gun; 46, pitch gear; 47, semicircular gear; 48, universal sleeve; 49, universal ball; 401, connecting plate. DETAILED DESCRIPTION

[0031] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0032] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meanings as commonly understood by ordinary technicians in the technical field to which this application belongs.

[0033] In the present invention, unless otherwise specified, the directions used, such as "up" and "down", usually refer to the directions shown in the drawings, or to the vertical, perpendicular or gravity directions; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the drawings; "inside" and "outside" refer to the inside and outside relative to the outline of each component itself, but the above-mentioned directions are not used to limit the present invention.

[0034] See also Figures 1 to 5 A welding device for producing oil film bearing bushings comprises a welding frame 1, on which an adjustment mechanism is arranged, the adjustment mechanism comprising a rotating mechanism, a receiving frame 2, a lifting frame 3, a guide rod 4, a differential bolt 5, a fixing sleeve 6, a push rod 7, a push plate 8, an inner rod 9, a friction plate 10, a threaded block 11, a transverse rod 12, a push spring 13 and a fine adjustment mechanism, the receiving frame 2 is rotatably connected to the welding frame 1, the rotating mechanism is cooperatively connected to the receiving frame 2, a plurality of guide rods 4 are arranged, and the plurality of guide rods 4 are respectively mounted on the lifting frame 3, and the plurality of guide rods 4 are respectively slidably connected to the lifting frame 3, and the differential The movable bolt 5 is threadedly connected to the lifting frame 3 and the receiving frame 2 respectively, the fixed sleeve 6 is installed on the lifting frame 3, the push rod 7 is slidably connected in the fixed sleeve 6, the push plate 8 is coaxially installed with the push plate 8, the internal rod 9 is coaxially installed on the push rod 7, a plurality of fitting grooves 14 are evenly spaced on the side wall of the fixed sleeve 6, the threaded block 11 is slidably connected in the fitting groove 14, a plurality of transverse holes 15 are opened on the threaded block 11, each transverse hole 15 is slidably connected to a transverse rod 12, a plurality of transverse rods 12 are installed with friction plates 10, each transverse rod 12 is respectively sleeved with a push spring 13, and the two ends of the push spring 13 are divided into The friction plate 10 and the threaded block 11 are not in conflict with each other, and the fine-tuning mechanism is installed on the fixed sleeve 6. The friction plate 10 is fitted on the side wall of the inner rod 9. A plurality of fitting grooves 14 are symmetrically arranged in the fixed sleeve 6. The friction plates 10 at the upper and lower ends are respectively fitted on the side walls of the inner rod 9, and the threaded blocks 11 at the upper and lower ends are respectively fitted with rotating sleeves 16. The inner walls of the two rotating sleeves 16 are respectively provided with tapered strips 17. A plurality of threaded blocks 11 are respectively threadedly connected to the tapered strips 17. The two rotating sleeves 16 are arranged with threads in the same direction. The rotating sleeves 16 and the threaded blocks 11 at the same end are fitted with the fitting grooves 14. The slopes are the same, and each threaded block 11 is respectively provided with an oblique plate 18. The upper and lower ends of the fixed sleeve 6 are respectively symmetrically provided with a plurality of oblique grooves 19. The oblique plate 18 is slidably connected in the oblique groove 19. The oblique groove 19 and the fitting groove 14 have the same slope as the threaded block 11. The upper and lower ends of the two rotating sleeves 16 are respectively provided with an inner nest 20 and an insertion ring 21. The inner nest 20 is provided with an embedded groove 22. The fixed sleeve 6 is provided with an extending ring 23, which is rotatably connected in the embedded groove 22. The upper and lower ends of the fixed sleeve 6 are respectively provided with positioning disks 24, and the insertion ring 21 is rotatably connected in the positioning disk 24.

[0035] Working principle: When welding the sleeve 40 and the connecting plate 401, firstly, the sleeve 40 is slidably connected to the receiving frame 2. At this time, the lower end of the sleeve 40 is fitted on the pushing plate 8, and then the connecting plate 401 is sleeved on the sleeve 40, and the connecting plate 401 is fitted on the receiving frame 2. At this time, the position between the sleeve 40 and the connecting plate 401 is roughly adjusted according to the situation. Since the differential bolt 5 is respectively threadedly connected to the lifting frame 3 and the receiving frame 2, the lifting frame 3 can be driven to perform a rough adjustment by rotating the differential bolt 5. Since the pushing plate 8 will change with the change of the lifting frame 3, it will drive the sleeve 40 to rise and fall, thereby completing the rough adjustment process. Since the guide rod 4 is slidably connected to the receiving frame 2, it will ensure the limit of the upward sliding of the lifting frame 3, ensuring that the sleeve 40 can slide vertically upward.

[0036] In order to achieve fine adjustment of the sleeve 40, a fine adjustment mechanism is added, see Figures 5 to 10 The fine-tuning mechanism includes a telescopic rod 25 and a bidirectional gear 26. A plurality of rotating holes 27 are provided at equal intervals on the two positioning disks 24. A telescopic rod 25 is rotatably installed in each rotating hole 27. A bidirectional gear 26 is installed on the telescopic rod 25. External gears 28 are provided coaxially on the two rotating sleeves 16. The bidirectional gears 26 are meshed with the external gears 28. Springs 29 are sleeved at both ends of the telescopic rod 25. A thrust bearing 30 is provided at one end of the spring 29 close to the positioning disk 24. The thrust bearing 30 is slidably connected to the telescopic rod 25, and the thrust bearing 30 contacts the positioning disk 24. Limiting grooves 31 are provided at both ends of the fixed sleeve 6. The two limiting grooves 31 are provided respectively. An adjusting disk 32 is rotatably provided, and each adjusting disk 32 is respectively provided with a plurality of reducing grooves 33. Round heads 34 are respectively provided at both ends of the telescopic rod 25, and the reducing grooves 33 abut against the round heads 34. Internal gears 35 are respectively meshed on the plurality of bidirectional gears 26, and an intermediate sleeve 36 is coaxially provided outside the internal gear 35. A hexagonal groove 37 is provided on the outer wall of the intermediate sleeve 36. A follower disk 38 is respectively provided on each bidirectional gear 26, and a follower groove 39 is provided in the internal gear 35. The follower disk 38 fits in the follower groove 39. A sleeve body 40 is slidably provided on the receiving frame 2, and the sleeve body 40 abuts against the push plate 8. A connecting disk 401 is provided on the receiving frame 2, and the connecting disk 401 is sleeved on the sleeve body 40.

[0037] Working principle: When fine-tuning the distance between the sleeve body 40 and the connecting plate 401, first rotate the adjusting plates 32 at the upper and lower ends so that the multiple round heads 34 are respectively located in the middle of the reducing groove 33. At this time, the round heads 34 are not in contact with the reducing groove 33, so the two ends of the telescopic rod 25 will not be subjected to external force. Under the action of the springs 29 at both ends, the multiple telescopic rods 25 will return to the center. Since the two-way gear 26 is installed on the telescopic rod 25, it will return to the center accordingly. Then, the external gears 28 at the upper and lower ends are respectively meshed with the multiple two-way gears 26, and the follower plate 38 is slidably connected in the follower groove 39, so the middle sleeve 36 will also slide accordingly. Then, rotating the middle sleeve 36 will drive the rotation of the internal gear 35. Since the internal gear 35 is meshed with the two-way gear 26, and the two-way gear 26 is meshed It is engaged on the external gear 28, thereby driving the two rotating sleeves 16 to rotate synchronously. Since the threaded block 11 and the rotating sleeve 16 have the same slope and are in the same direction, the threaded blocks 11 on the upper and lower sides are driven to move upward or downward synchronously (upward is used as an example here). When moving upward, the multiple threaded blocks 11 at the lower end are in a contracted state, and the multiple threaded blocks 11 at the upper end are in an expanded state. Therefore, the spring 29 on the lower threaded block 11 will be in a compressed state, thereby providing the main friction force for the friction plate 10, and then pushing the internal rod 9 to move upward. Since the push rod 7 is connected to the internal rod 9 and the push rod 7 is slidably connected in the fixed sleeve 6, it will drive the push plate 8 to move upward, thereby driving the sleeve body 40 to move upward, thereby completing the fine-tuning process.

[0038] When adjusting the friction force between the friction plate 10 and the internal rod 9 according to different situations, first adjust the adjustment disks 32 at the upper and lower ends respectively according to the situation. When it is necessary to adjust the rotating sleeve 16 at the upper end separately, the reducing groove 33 is abutted against the round head 34 by rotating the adjustment disk 32 at the lower end, and then the telescopic rod 25 is pushed to slide upward, and the two-way gear 26 slides accordingly, and then the external gear 28 at the lower end is disengaged from the two-way gear 26, and only the two-way gear 26 at the upper end is engaged with the external gear 28. At this time, the rotating sleeve 16 at the upper end can be adjusted separately. According to this method, the rotating sleeve 16 at the lower end can also be adjusted separately, thereby completing the fine-tuning process.

[0039] See also Figure 1 to Figure 2In order to realize rotational welding, a rotation mechanism is added. The rotation mechanism includes a reducer 41, a servo motor 42, a driving wheel 43, a driven wheel 44, a welding gun 45, a pitch gear 46 and a semicircular gear 47. The reducer 41 is installed on the receiving frame 2, the servo motor 42 is connected to the reducer 41, the driving wheel 43 is installed on the protruding end of the reducer 41, the driven wheel 44 is rotatably connected to the receiving frame 2, the driving wheel 43 is meshed with the driven wheel 44, and a plurality of universal sleeves 48 are provided on the driven wheel 44, each universal sleeve 48 is respectively provided with a universal ball 49 for friction rotation, and a welding gun 45 is respectively installed on each universal ball 49, and a semicircular gear 47 is installed on the receiving frame 2, and the pitch gear 46 is rotatably connected to the welding frame 1, and the pitch gear 46 is meshed with the semicircular gear 47.

[0040] Working principle: During welding, since a plurality of welding guns 45 are respectively provided with universal balls 49, and the universal balls 49 are frictionally connected in the universal sleeve 48, the positions of the plurality of welding guns 45 can be adjusted so that the plurality of welding guns 45 are respectively aligned with the gap between the connecting plate 401 and the sleeve body 40, thereby ensuring the welding accuracy, and then starting the servo motor 42, the servo motor 42 can drive the rotation of the reducer 41, and the reducer 41 drives the rotation of the driving wheel 43, the driving wheel 43 is meshed with the driven wheel 44, and the driven wheel 44 is rotationally connected to the receiving frame 2, thereby driving a plurality of welding guns 45 to rotate, and then the sleeve body 40 and the connecting plate 401 are welded, the angle of the receiving frame 2 can be changed by rotating the pitch gear 46, and when welding slag appears, it can be conveniently cleaned, thereby ensuring the convenience of use.

[0041] In all the schemes mentioned above, the connection between two parts can be selected according to actual conditions by welding, bolt and nut matching connection, bolt or screw connection or other well-known connection methods, which will not be described one by one here. In the above, all fixed connections are preferably welded. Although the embodiments of the present invention have been shown and described, it can be understood by ordinary technicians in this field 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 attached claims and their equivalents.

Claims

1. A welding device for producing oil film bearing bushings, comprising a welding frame (1), characterized in that: The welding frame (1) is provided with an adjustment mechanism; The adjustment mechanism comprises a rotating mechanism, a receiving frame (2), a lifting frame (3), a guide rod (4), a differential bolt (5), a fixing sleeve (6), a push rod (7), a push plate (8), an internal rod (9), a friction plate (10), a threaded block (11), a transverse rod (12), a push spring (13) and a fine adjustment mechanism. The receiving frame (2) is rotatably connected to the welding frame (1), the rotating mechanism is cooperatively connected to the receiving frame (2), a plurality of guide rods (4) are provided, and the plurality of guide rods (4) are respectively mounted on the lifting frame (3), the plurality of guide rods (4) are respectively slidably connected to the lifting frame (3), the differential bolts (5) are respectively threadedly connected to the lifting frame (3) and the receiving frame (2), and the fixing sleeve (6) is mounted on the lifting frame (1). The push rod (7) is slidably connected in the fixed sleeve (6), the push plate (8) is coaxially mounted on the push plate (8), the inner rod (9) is coaxially mounted on the push rod (7), a plurality of fitting grooves (14) are evenly spaced on the side wall of the fixed sleeve (6), the threaded block (11) is slidably connected in the fitting groove (14), the plurality of fitting grooves (14) are symmetrically arranged in the fixed sleeve (6), the friction plates (10) at the upper and lower ends are respectively fitted on the side walls of the inner rod (9), and the threaded blocks (11) at the upper and lower ends are respectively fitted with rotating sleeves (16), the inner walls of the two rotating sleeves (16) are respectively provided with tapered strips (17), and the plurality of threaded blocks (11) are respectively threadedly connected to the tapered strips (17); The threaded block (11) is provided with a plurality of transverse holes (15), each of the transverse holes (15) being slidably connected to a transverse rod (12), a friction plate (10) being mounted on the plurality of transverse rods (12), each of the transverse rods (12) being sleeved with a push spring (13), two ends of the push spring (13) respectively abutting against the friction plate (10) and the threaded block (11), the fine-tuning mechanism being mounted on the fixed sleeve (6), and the friction plate (10) being fitted on the side wall of the inner rod (9); The upper and lower ends of the two rotating sleeves (16) are respectively provided with an inner nest (20) and an insertion ring (21); the inner nest (20) is provided with an inner embedding groove (22); the fixed sleeve (6) is provided with an extension ring (23); the extension ring (23) is rotatably connected in the inner embedding groove (22); the upper and lower ends of the fixed sleeve (6) are respectively provided with positioning plates (24); the insertion ring (21) is rotatably connected in the positioning plate (24); The fine adjustment mechanism comprises a telescopic rod (25) and a bidirectional gear (26). The two positioning plates (24) are respectively provided with a plurality of rotating holes (27) at equal intervals. A telescopic rod (25) is rotatably mounted in each rotating hole (27). The telescopic rod (25) is provided with a bidirectional gear (26). The two rotating sleeves (16) are respectively provided with external gears (28) coaxially therewith. The bidirectional gears (26) are meshed with the external gears (28). Springs (29) are respectively sleeved at both ends of the telescopic rod (25). A thrust bearing (30) is provided at one end of the spring (29) close to the positioning plate (24). The thrust bearing (30) is slidably connected to the telescopic rod (25), and the thrust bearing (30) abuts against the positioning plate (24).

2. The welding equipment for producing oil film bearing bushings according to claim 1 is characterized in that: The two rotating sleeves (16) are arranged with threads in the same direction, and the rotating sleeve (16) and the threaded block (11) at the same end have the same slope as the fitting groove (14).

3. The welding equipment for producing oil film bearing bushings according to claim 1 is characterized in that: Each of the threaded blocks (11) is provided with an inclined plate (18), and the upper and lower ends of the fixed sleeve (6) are symmetrically provided with a plurality of inclined grooves (19), the inclined plates (18) are slidably connected in the inclined grooves (19), and the slopes of the inclined grooves (19) and the fitting grooves (14) and the threaded blocks (11) are the same.

4. The welding equipment for producing oil film bearing bushings according to claim 1 is characterized in that: The two ends of the fixing sleeve (6) are respectively provided with limiting grooves (31), and adjustment disks (32) are rotatably arranged in the two limiting grooves (31), and each of the adjustment disks (32) is respectively provided with a plurality of diameter-changing grooves (33). The two ends of the telescopic rod (25) are respectively provided with round heads (34), and the diameter-changing grooves (33) abut against the round heads (34).

5. The welding equipment for producing oil film bearing bushings according to claim 1 is characterized in that: The plurality of bidirectional gears (26) are respectively meshed with internal gears (35), an intermediate sleeve (36) is coaxially disposed outside the internal gears (35), and a hexagonal groove (37) is formed on the outer wall of the intermediate sleeve (36); Each of the bidirectional gears (26) is provided with a follower disc (38), a follower groove (39) is provided in the internal gear (35), and the follower disc (38) fits in the follower groove (39).

6. The welding equipment for producing oil film bearing bushings according to claim 1 is characterized by: A sleeve body (40) is slidably provided on the receiving frame (2), the sleeve body (40) abuts against the push plate (8), a connecting plate (401) is provided on the receiving frame (2), and the connecting plate (401) is sleeved on the sleeve body (40).

7. The welding equipment for producing oil film bearing bushings according to claim 1 is characterized by: The rotating mechanism comprises a reducer (41), a servo motor (42), a driving wheel (43), a driven wheel (44), a welding gun (45), a pitch gear (46) and a semicircular gear (47). The reducer (41) is mounted on a receiving frame (2), the servo motor (42) is connected to the reducer (41), the driving wheel (43) is mounted on a protruding end of the reducer (41), the driven wheel (44) is rotatably connected to the receiving frame (2), the driving wheel (43) is meshed with the driven wheel (44), a plurality of universal sleeves (48) are provided on the driven wheel (44), a universal ball (49) is frictionally rotatably provided in each of the universal sleeves (48), a welding gun (45) is mounted on each of the universal balls (49), the semicircular gear (47) is mounted on the receiving frame (2), the pitch gear (46) is rotatably connected to the welding frame (1), and the pitch gear (46) is meshed with the semicircular gear (47).

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