Automatic welding device for spindle assembly

Abstract

The invention discloses an automatic welding device for a spindle assembly, comprising a base, wherein two bases are slidably arranged on the base, a chuck is rotatably arranged on the base, the chuck abuts against the spindle, and a plurality of clamping claws are slidably arranged on the chuck; a fixing frame is fixedly arranged on the base, a plurality of supporting frames are slidably arranged on the fixing frame, and a transverse rod is slidably arranged on the base, and a disengagement assembly is used to make the base slide, the chuck abuts against the spindle placed on the supporting frame, and then the clamping claws on the chuck clamp the spindle, and then under the action of the disengagement assembly, the transverse rod slides, and the supporting frame is moved downward along the fixing frame through a first connecting rod, and is disengaged from the spindle to avoid affecting the welding of the spindle, so that when the clamping claw clamps the spindle, the spindle is directly opposite to the center position of the clamping claw, so as to avoid friction between the shaft end and the clamping claw due to the inclination of the spindle, thereby avoiding scratches or even damage to the side wall of the shaft end.

Description

Technical Field

[0001] The invention relates to the technical field of welding devices, and in particular to an automatic welding device for a spindle assembly. Background Art

[0002] The spindle is a mechanical component that is mainly used to transmit power and drive the workpiece or tool to rotate. In the field of mechanics, the spindle is usually composed of a spindle, bearings, and transmission parts (such as gears or pulleys). Its main function is to support transmission parts, transmit motion and torque, and sometimes it is used to clamp workpieces. It has applications in many fields, such as machine tools, transportation, automobile manufacturing, and motors.

[0003] When the spindle is in production or repaired after a break, it needs to be welded. There are many welding methods, such as patching welding, manual arc welding, semi-automatic submerged arc welding, etc. During the welding process, in order to ensure the concentricity of the spindle after welding, the spindle needs to be clamped and fixed.

[0004] In the prior art, it is generally fixed by a chuck jaw and then welded. When clamping, it is necessary to manually place the shaft end in the jaw position so that the jaw is tightened to clamp the shaft end. During this process, it is difficult for manual operation to keep the main shaft in the center position facing the jaw, resulting in friction or even compression between the jaw and the side wall of the shaft end when clamping the shaft end, causing scratches or even damage to the side wall of the shaft end. Summary of the invention

[0005] The object of the present invention is to provide an automatic welding device for a spindle assembly to solve the above-mentioned deficiencies in the prior art.

[0006] In order to achieve the above object, the present invention provides the following technical solutions:

[0007] An automatic welding device for a spindle assembly comprises a base, two bases are slidably arranged on the base, a chuck is rotatably arranged on the base, the chuck abuts against the spindle, and a plurality of clamping claws are slidably arranged on the chuck;

[0008] A fixing frame is fixedly arranged on the base, a plurality of supporting frames are slidably arranged on the fixing frame, a transverse rod is slidably arranged on the base, a first connecting rod is arranged between the plurality of supporting frames and the transverse rod, and two ends of the first connecting rod are rotatably connected to the transverse rod and the supporting frame respectively;

[0009] It also includes a disengagement component, which is used to enable the support frame to move downward and disengage from the main shaft after the clamping claws clamp the main shaft.

[0010] Preferably, a sliding rod is slidably arranged on the base, a sliding groove is arranged on the transverse rod, and the sliding rod is slidably arranged in the sliding groove.

[0011] Preferably, the disengagement assembly comprises a push plate slidably arranged on a base, a rotating rod is rotatably arranged on the push plate, a rotating tube is rotatably arranged on the sliding rod, and the rotating tube is slidably connected to the rotating rod.

[0012] Preferably, a second spring is provided between the rotating tube and the rotating rod, and two ends of the second spring are fixedly connected to the rotating tube and the rotating rod respectively.

[0013] Preferably, a rotating frame is rotatably provided on the push plate, a second connecting rod is provided between each of the plurality of clamping jaws and the rotating frame, and two ends of the second connecting rod are rotatably connected to the clamping jaws and the rotating frame respectively.

[0014] Preferably, a first spring is provided between the push plate and the base, and two ends of the first spring are fixedly connected to the push plate and the base respectively.

[0015] Preferably, a clamping rod is slidably provided on the base, and the clamping rod is clamped and connected with the transverse rod;

[0016] A plurality of third springs are fixedly arranged on the clamping rod and between the clamping seat, and two ends of the third springs are fixedly connected to the clamping rod and the clamping seat respectively.

[0017] Preferably, the clamping rod is provided with a first inclined surface, and the first inclined surface is in contact with the transverse rod;

[0018] The clamping rod is provided with a second inclined surface, and the second inclined surface is in contact with the push plate.

[0019] Preferably, a bidirectional lead screw is rotatably provided on the base, and different threads on both sides of the bidirectional lead screw are respectively threadedly connected with the two push plates;

[0020] A driving motor is fixedly arranged on the base, and a motor shaft of the driving motor is fixedly connected to the bidirectional lead screw.

[0021] Preferably, a plurality of balls are rollingly arranged on the support frame, and the plurality of balls are in contact with the main shaft.

[0022] In the above technical solution, the automatic welding device of a spindle assembly provided by the present invention has the beneficial effects of:

[0023] When welding the main shaft, the base is slid by disengaging the assembly, and the chuck abuts against the main shaft placed on the support frame, and then the claws on the chuck clamp the main shaft. Subsequently, under the action of the disengaging assembly, the transverse rod is slid, and the support frame is moved down along the fixed frame through the first connecting rod to disengage from the main shaft to avoid affecting the welding of the main shaft. When the claws clamp the main shaft, the main shaft is facing the center of the claws to avoid friction between the shaft end and the claws due to the inclination of the main shaft, which may cause scratches or even damage to the side walls of the shaft end.

[0024] It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

[0025] This application document provides an overview of various implementations or examples of the technology described in the present disclosure, and is not a comprehensive disclosure of the entire scope or all features of the disclosed technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0027] Figure 1 A schematic diagram of the overall structure provided for an embodiment of the present invention;

[0028] Figure 2 An overall cross-sectional view provided for an embodiment of the present invention;

[0029] Figure 3 A schematic diagram of the internal structure of a base provided in an embodiment of the present invention;

[0030] Figure 4 The embodiment of the present invention provides Figure 3 A in the enlarged view;

[0031] Figure 5 A schematic diagram of the structure of a fixing frame and a transverse rod provided in an embodiment of the present invention;

[0032] Figure 6 A schematic diagram of the structure of a disengagement component provided in an embodiment of the present invention;

[0033] Figure 7 A schematic diagram of the structure of a rotating rod and a rotating tube provided in an embodiment of the present invention;

[0034] Figure 8 A schematic diagram of the structure of a clamping rod provided in an embodiment of the present invention.

[0035] Description of reference numerals:

[0036] 1. Base; 11. Base; 12. Bidirectional lead screw; 13. Drive motor; 2. Chuck; 21. Clamping claw; 3. Fixed frame; 31. Support frame; 32. Ball; 4. Transverse rod; 41. First connecting rod; 42. Sliding groove; 5. Push plate; 51. Rotating frame; 52. Second connecting rod; 53. First spring; 54. Rotating rod; 55. Second spring; 6. Sliding rod; 61. Rotating tube; 7. Connecting rod; 71. Third spring; 72. First inclined plane; 73. Second inclined plane. DETAILED DESCRIPTION

[0037] In order to make the purpose, technical solution and advantages of the embodiments of the present disclosure clearer, the technical solution of the embodiments of the present disclosure will be clearly and completely described below in conjunction with the drawings of the embodiments of the present disclosure. Obviously, the described embodiments are part of the embodiments of the present disclosure, not all of the embodiments. Based on the described embodiments of the present disclosure, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present disclosure.

[0038] Please refer to 1-8, an automatic welding device for a spindle assembly, including a base 1, two bases 11 are slidably arranged on the base 1, a chuck 2 is rotatably arranged on the base 11, the chuck 2 is abutted against the spindle, and a plurality of clamping claws 21 are slidably arranged on the chuck 2; a fixing frame 3 is fixedly arranged on the base 1, a plurality of supporting frames 31 are slidably arranged on the fixing frame 3, a transverse rod 4 is slidably arranged on the base 1, a first connecting rod 41 is arranged between the plurality of supporting frames 31 and the transverse rod 4, and the two ends of the first connecting rod 41 are rotatably connected with the transverse rod 4 and the supporting frame 31 respectively; and also includes a disengagement component, which is used to make the supporting frame 31 move downward and disengage from the spindle after the clamping claw 21 clamps the spindle, and when the spindle is welded, the disengagement component is used , so that the base 11 slides, the chuck 2 abuts against the main shaft placed on the support frame 31, and then the claws 21 on the chuck 2 clamp the main shaft, and then under the action of the disengagement component, the transverse rod 4 slides, and the support frame 31 is moved down along the fixed frame 3 through the first connecting rod 41, and is disengaged from the main shaft to avoid affecting the welding of the main shaft, so that when the claws 21 clamp the main shaft, the main shaft is facing the center position of the claws 21, avoiding friction between the shaft end and the claws 21 due to the inclination of the main shaft, resulting in scratches or even damage to the side wall of the shaft end, and in this process, it is only necessary to manually place the main shaft on the support frame 31, which greatly reduces the labor intensity of manual labor and ensures safety during construction.

[0039] Specifically, a sliding rod 6 is slidably arranged on the base 11, and a sliding groove 42 is arranged on the transverse rod 4. The sliding rod 6 is slidably arranged in the sliding groove 42. During the sliding process of the base 11, the sliding rod 6 slides along the sliding groove 42 without affecting the transverse rod 4. After the chuck 2 abuts against the main shaft and the clamping jaws 21 clamp the main shaft, the sliding rod 6 pushes the transverse rod 4 to slide laterally, so that the transverse rod 4 makes the support frame 31 slide downward along the fixed frame 3 through the first connecting rod 41 and completes separation from the main shaft. During this process, the clamping jaws 21 complete the clamping of the main shaft, and after the support frame 31 is separated from the main shaft, the phenomenon of interference of the support frame 31 on it during the main shaft welding process is avoided, thereby improving the portability of the operation during the main shaft welding.

[0040] In an embodiment further provided by the present invention, the disengagement assembly includes a push plate 5 slidably arranged on the base 11, a rotating rod 54 is rotatably arranged on the push plate 5, a rotating tube 61 is rotatably arranged on the sliding rod 6, the rotating tube 61 is slidably connected to the rotating rod 54, a second spring 55 is arranged between the rotating tube 61 and the rotating rod 54, and the two ends of the second spring 55 are respectively fixedly connected to the rotating tube 61 and the rotating rod 54. When the push plate 5 slides, it drives the base 11 to slide, and the chuck 2 on the base 11 abuts against the main shaft. After that, the base 11 is limited, and the push plate 5 continues to slide. Since the sliding rod 6 is slidably set on the base 11, at this time, the rotating rod 54 and the rotating tube 61 rotate, and the second spring 55 is squeezed to complete the accumulation of force on the sliding rod 6, so that after the claws 21 on the chuck 2 clamp the main shaft, the sliding rod 6 drags the transverse rod 4 to slide horizontally, so that the support frame 31 moves downward, and completes the separation from the main shaft, avoiding the support frame 31 from affecting it during the main shaft welding process, thereby improving the welding quality of the main shaft.

[0041] Furthermore, a rotating frame 51 is rotatably arranged on the push plate 5, and a second connecting rod 52 is arranged between the multiple clamping jaws 21 and the rotating frame 51, and the two ends of the second connecting rod 52 are rotatably connected to the clamping jaws 21 and the rotating frame 51 respectively. After the chuck 2 abuts against the main shaft, the push plate 5 continues to slide. At this time, the push plate 5 slides with the rotating frame 51 relative to the base 11. During the sliding process, since the second connecting rod 52 is inclined, the rotating frame 51 causes the clamping jaws 21 to slide through the second connecting rod 52 to complete the clamping of the main shaft, thereby improving the efficiency of clamping the main shaft; by rotatably setting the rotating frame 51 on the push plate 5 and the chuck 2 on the base 11, after the clamping jaws 21 clamp the main shaft, during the process of welding the main shaft, the chuck 2 can be rotated and drive the main shaft to rotate, so as to adjust the welding position of the main shaft.

[0042] Furthermore, a first spring 53 is provided between the push plate 5 and the base 11, and both ends of the first spring 53 are fixedly connected to the push plate 5 and the base 11 respectively. When the push plate 5 slides, under the action of the first spring 53, the push plate 5 slides with the base 11, and after the chuck 2 abuts against the main shaft, the base 11 is limited. At this time, the push plate 5 slides relative to the base 11 and squeezes the first spring 53, so that after the chuck 2 abuts against the main shaft, the push plate 5 continues to slide, so that the clamping claw 21 clamps the main shaft, and the transverse rod 4 slides, completing the separation of the support frame 31 from the main shaft.

[0043] In an embodiment further provided by the present invention, a clamping rod 7 is slidably provided on the base 11, and the clamping rod 7 is clamped and connected with the transverse rod 4; a plurality of third springs 71 are fixedly provided between the clamping rod 7 and the clamping seat, and the two ends of the third spring 71 are respectively fixedly connected with the clamping rod 7 and the clamping seat, and a first inclined surface 72 is provided on the clamping rod 7, and the first inclined surface 72 is in contact with the transverse rod 4; a second inclined surface 73 is provided on the clamping rod 7, and the second inclined surface 73 is in contact with the push plate 5. When the push plate 5 slides relative to the base 11, under the action of the third spring 71, the clamping rod 7 The connecting rod 7 is engaged with the transverse rod 4, and the support frame 31 will not move downward. When the push rod slides to the clamping claw 21 to complete the clamping of the main shaft, the push rod contacts the second inclined surface 73, and the connecting rod 7 slides through the second inclined surface 73 to complete the separation from the transverse rod 4. At this time, the second spring 55 is released, so that the sliding rod 6 pushes the transverse rod 4 to slide, thereby completing the separation of the support frame 31 from the main shaft. In this process, after the clamping claw 21 clamps the main shaft, the support frame 31 is separated from the main shaft, which improves the stability of the clamping claw 21 in the process of clamping the main shaft.

[0044] In the embodiment provided by the present invention, a bidirectional lead screw 12 is rotatably provided on the base 11, and different threads on both sides of the bidirectional lead screw 12 are respectively threadedly connected to the two push plates 5; a drive motor 13 is fixedly provided on the base 1, and the motor shaft of the drive motor 13 is fixedly connected to the bidirectional lead screw 12. The bidirectional lead screw is driven to rotate by the drive motor 13, so that the two push plates 5 slide, and the main shaft is clamped, making it more convenient and quick to clamp the main shaft.

[0045] Specifically, a plurality of balls 32 are rollingly arranged on the support frame 31, and the plurality of balls 32 are in contact with the main shaft. After the chuck 2 abuts against the main shaft, the main shaft can slide appropriately on the support frame 31 through the balls 32, so that the two ends of the main shaft abut against the chucks 2 on both sides respectively. The balls 32 can effectively reduce the friction between the main shaft and the support frame 31, and avoid damage to the main shaft.

[0046] Working principle: When welding the main shaft, the main shaft is placed on the support frame 31, and then the driving motor 13 is started, driving the bidirectional lead screw 12 to rotate, so that the push plate 5 is driven to make the base 11 slide. During the sliding process of the base 11, the sliding rod 6 slides in the sliding groove 42 and compresses the second spring 55 to accumulate force without affecting the transverse rod 4. After the chucks 2 on both sides abut against the main shaft on the support frame 31, the bidirectional lead screw 12 continues to rotate to make the push plate 5 slide. At this time, the base 11 remains stationary under the abutment of the main shaft and the chuck 2. At this time, the push plate 5 continues to slide and compresses the first spring 53. When the push plate 5 slides, the rotating rod 54 and the rotating tube 61 rotate and slide relatively, pressing the second spring 55. The push plate 5 is compressed, and at the same time, the push plate 5 slides, the chuck 2 is limited by the main shaft on the support frame 31, and the rotating frame 51 slides relative to the chuck 2. During the sliding process of the rotating frame 51, the multiple clamping claws 21 on the chuck 2 slide to clamp the main shaft through the action of the second connecting rod 52. When the main shaft is clamped, the push plate 5 contacts the second inclined surface 73, and the extrusion force between the second inclined surface 73 causes the clamping rod 7 to slide, compressing the third spring 71 and disengaging from the transverse rod 4. At this time, the second spring 55 is released, so that the sliding rod 6 pushes the transverse rod 4 to slide horizontally. When the transverse rod 4 slides, the first connecting rod 41 is used to make the support frame 31 slide down along the fixed frame 3 and disengage from the main shaft. Then, the main shaft can be welded.

[0047] After welding is completed, the driving motor 13 is reversed, and the push plate 5 is first made to slide relative to the base 11, and the first spring 53 is reset. During the resetting process of the push plate 5, the transverse rod 4 is slid and reset through the rotating tube 61 and the rotating rod 54. During the resetting process of the transverse rod 4, the first inclined surface 72 is squeezed to make the clamping rod 7 slide and pass through the first inclined surface 72 to engage with the clamping rod 7. When the transverse rod 4 is reset, under the action of the first connecting rod 41, the transverse rod 4 rises and supports the main shaft. At the same time, during the sliding process of the push plate 5, the rotating frame 51 releases the clamping claw 21 from the main shaft through the second connecting rod 52, and places the main shaft on the support frame 31. Then the driving motor 13 continues to reverse, so that the base 11 is reset, and the welded main shaft can be removed.

[0048] The above description is only by way of illustration of certain exemplary embodiments of the present invention. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. An automatic welding device for a spindle assembly, comprising a base (1), characterized in that: Two bases (11) are slidably provided on the base (1), a chuck (2) is rotatably provided on the base (11), the chuck (2) is in contact with the main shaft, and a plurality of clamping claws (21) are slidably provided on the chuck (2); A fixing frame (3) is fixedly arranged on the base (1), a plurality of supporting frames (31) are slidably arranged on the fixing frame (3), a transverse rod (4) is slidably arranged on the base (1), a first connecting rod (41) is arranged between the plurality of supporting frames (31) and the transverse rod (4), and two ends of the first connecting rod (41) are rotatably connected to the transverse rod (4) and the supporting frame (31) respectively; It also includes a disengagement assembly, which is used to enable the support frame (31) to move downward and disengage from the main shaft after the clamping claw (21) clamps the main shaft; A sliding rod (6) is slidably disposed on the base (11), a sliding groove (42) is disposed on the transverse rod (4), and the sliding rod (6) is slidably disposed in the sliding groove (42); The disengagement assembly comprises a push plate (5) slidably arranged on a base (11), a rotating rod (54) being rotatably arranged on the push plate (5), a rotating tube (61) being rotatably arranged on the sliding rod (6), and the rotating tube (61) being slidably connected to the rotating rod (54); A second spring (55) is provided between the rotating tube (61) and the rotating rod (54), and two ends of the second spring (55) are respectively fixedly connected to the rotating tube (61) and the rotating rod (54); A rotating frame (51) is rotatably provided on the push plate (5), a second connecting rod (52) is provided between each of the plurality of clamping jaws (21) and the rotating frame (51), and two ends of the second connecting rod (52) are rotatably connected to the clamping jaws (21) and the rotating frame (51), respectively; A first spring (53) is provided between the push plate (5) and the base (11), and two ends of the first spring (53) are fixedly connected to the push plate (5) and the base (11) respectively; A clamping rod (7) is slidably provided on the base (11), and the clamping rod (7) is clamped and connected with the transverse rod (4); A plurality of third springs (71) are fixedly arranged on the clamping rod (7) and between the clamping seat, and two ends of the third springs (71) are respectively fixedly connected to the clamping rod (7) and the clamping seat; The clamping rod (7) is provided with a first inclined surface (72), and the first inclined surface (72) is in contact with the transverse rod (4); The clamping rod (7) is provided with a second inclined surface (73), and the second inclined surface (73) is in contact with the push plate (5); A bidirectional lead screw (12) is rotatably arranged on the base (11), and different threads on two sides of the bidirectional lead screw (12) are respectively threadedly connected to the two push plates (5); A drive motor (13) is fixedly arranged on the base (1), and a motor shaft of the drive motor (13) is fixedly connected to the bidirectional lead screw (12).

2. The automatic welding device of a spindle assembly according to claim 1, characterized in that: A plurality of balls (32) are rollingly arranged on the support frame (31), and the plurality of balls (32) are in contact with the main shaft.

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