Automatic welding device for bearing end face

Abstract

The invention belongs to the technical field of bearing end face welding, particularly relates to an automatic welding device for a bearing end face, and aims to solve the problems that a bearing and an end pipe are not easy to position and the welding difficulty is high in the background technology, according to the scheme, the automatic welding device comprises a vertical plate, and a welding chamber is arranged on the outer wall of one side of the vertical plate; and a double-end air cylinder is arranged in the welding chamber, piston rods at the two ends of the double-end air cylinder are fixedly connected with connecting plates, and the outer walls of one sides of the two connecting plates are fixedly connected with clamping sleeves. Automatic positioning of the bearing is achieved, by means of positioning of the positioning lantern ring, the end pipe can accurately fall onto the bearing, mutual positioning between the bearing and the end pipe is achieved, the positioning difficulty is lowered, meanwhile, follow-up welding is facilitated, the gear is driven by the speed reducer to rotate, and welding efficiency is improved. The laser welding head can complete automatic welding of the end face of the bearing under the action of rotation of the gear ring, mechanical operation is achieved, the stability is high, the welding difficulty is lowered, and the welding quality is guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of bearing end surface welding, and in particular to an automatic bearing end surface welding device. Background Art

[0002] A bearing is a mechanical element that limits relative motion to a desired range of motion and reduces friction between moving parts. Bearings are designed to provide free linear motion of moving parts or free rotation about a fixed axis, or to prevent motion by controlling the vector of the normal force acting on the moving part.

[0003] In the machinery manufacturing industry, bearings are a key component. In most machines, bearings are used to support rotating parts and reduce friction losses. Therefore, the application of bearing welding technology is becoming more and more important.

[0004] However, there is no positioning structure between the bearing and the end tube, and it is difficult to position the two. Once there is a position deviation during positioning, the bearing will easily be scrapped, causing certain economic losses. In addition, the connection position between the bearing and the end tube is in a vertical plane. During welding, the laser welding head needs to always maintain an inclined welding, which makes welding difficult and the welding quality difficult to guarantee. Summary of the invention

[0005] In view of the deficiencies of the prior art, the present invention provides an automatic bearing end face welding device, which overcomes the deficiencies of the prior art and effectively solves the problems of difficult positioning and greater difficulty in welding between the bearing and the end tube.

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

[0007] A bearing end face automatic welding device comprises a vertical plate, a welding chamber is arranged on one side outer wall of the vertical plate, and a double-headed cylinder is arranged inside the welding chamber, piston rods at both ends of the double-headed cylinder are fixedly connected to connecting plates, and outer walls on one side of the two connecting plates are fixedly connected to ferrules, the inner wall of the ferrule is rotatably connected to symmetrically distributed positioning wheels, a lifting cylinder is fixedly connected to the outer wall of the top of the welding chamber, and the piston rod of the lifting cylinder is rotatably connected to a rotating pressure cover, a servo motor is arranged on the top of the lifting cylinder, and the output shaft of the servo motor is fixedly connected to a supporting bracket, and a positioning collar is arranged between the rotating pressure cover and the supporting bracket;

[0008] The top inner wall of the welding chamber is rotatably connected to a top sleeve, and the bottom outer wall of the top sleeve is fixedly connected to a gear ring, the outer wall of the gear ring is meshed with a gear, and a reducer is installed on the top outer wall of the gear, the bottom outer wall of the gear ring is fixedly connected to a servo guide rail, and a connecting rod is fixedly connected to the servo guide rail slider, and a laser welding head is installed on the bottom outer wall of the connecting rod.

[0009] Preferably, a bearing is placed on the top of the support bracket, and an end tube is arranged on the top of the bearing, the positioning wheel is slidably connected to the outer wall of the bearing, the end tube is rotatably connected to the inner wall of the positioning ring, and the rotating pressure cover is tightly attached to the top outer wall of the end tube.

[0010] Preferably, a support frame and a fixed plate are welded to the outer wall of one side of the vertical plate, and the double-headed cylinder and the servo motor are fixedly connected to the top outer walls of the support frame and the fixed plate respectively, and the positioning ring is welded to the outer wall of one side of the vertical plate.

[0011] Preferably, an outer wall on one side of the vertical plate is provided with symmetrically distributed sliding grooves, and the connecting plate is slidably connected to the inner wall of the sliding grooves.

[0012] Preferably, a dust suction area is provided on the outer wall of one side of the vertical plate located at the top of the slide groove, and a dust removal box with a dust suction pump is installed on one side of the outer wall of the other side of the vertical plate located at the dust suction area.

[0013] Preferably, a bearing placement area and an end tube placement area are respectively provided on both sides of the inner wall at the bottom of the welding chamber, and a waste chip collection frame is fixedly connected to the outer wall at the top of the bearing placement area and the end tube placement area.

[0014] Preferably, a PLC controller is fixedly connected to the outer wall of one side of the vertical plate, and the PLC controller is connected to the double-head cylinder, the lifting cylinder, the servo motor, and the reducer through signal lines.

[0015] The beneficial effects of the present invention are:

[0016] 1. The bearing end face automatic welding device of the present invention can be directly placed on the support bracket. The double-headed cylinder simultaneously contracts the piston rods at both ends, and the ferrules on the two connecting plates can approach each other until the positioning wheel is tightly attached to the outer ring of the bearing, thereby realizing the automatic positioning of the bearing. In addition, the end pipe can move from top to bottom, and the end pipe can accurately fall on the bearing by relying on the positioning of the positioning collar, thereby realizing the mutual positioning between the bearing and the end pipe. Subsequently, the lifting cylinder drives the rotating gland to move down and attach to the end pipe, and the servo motor drives the support bracket to rotate, so that the bearing and the end pipe can rotate at the same time, thereby reducing the difficulty of positioning and facilitating subsequent welding.

[0017] 2. The automatic welding device for the bearing end face of the present invention drives the gear to rotate through a reducer and can control the rotation of the ring gear. Since the servo guide rail is installed at the bottom of the ring gear, when the laser welding head moves to the vicinity of the connection between the bearing and the end tube, the laser welding head can complete the automatic welding of the bearing end face under the action of the rotation of the ring gear. The mechanized operation has high stability, reduces the difficulty of welding, and ensures the quality of welding. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1This is a front view of the overall structure of an automatic bearing end surface welding device proposed by the present invention;

[0019] Figure 2 A bottom view of the overall structure of an automatic bearing end face welding device proposed by the present invention;

[0020] Figure 3 A front view of a bearing placement structure of a bearing end surface automatic welding device proposed by the present invention;

[0021] Figure 4 A bottom view of a bearing placement structure of a bearing end surface automatic welding device proposed by the present invention;

[0022] Figure 5 This is a schematic diagram of the gear ring connection structure of the bearing end face automatic welding device proposed by the present invention.

[0023] In the figure: 1. vertical plate; 2. welding chamber; 3. double-head cylinder; 4. connecting plate; 5. ferrule; 6. positioning wheel; 7. lifting cylinder; 8. rotating cover; 9. servo motor; 10. support bracket; 11. positioning collar; 12. top sleeve; 13. gear ring; 14. gear; 15. reducer; 16. servo guide; 17. connecting rod; 18. laser welding head; 19. support frame; 20. fixing plate; 21. slide; 22. dust suction area; 23. dust removal box; 24. bearing placement area; 25. end pipe placement area; 26. waste chip collection box; 27. PLC controller. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0025] Embodiment 1, refer to Figures 1 to 4 A bearing end face automatic welding device comprises a vertical plate 1, a welding chamber 2 is arranged on the outer wall of one side of the vertical plate 1, and a double-headed cylinder 3 is arranged inside the welding chamber 2, piston rods at both ends of the double-headed cylinder 3 are fixedly connected with connecting plates 4, and outer walls on one side of the two connecting plates 4 are fixedly connected with ferrules 5, the inner wall of the ferrule 5 is rotatably connected with symmetrically distributed positioning wheels 6, a lifting cylinder 7 is fixedly connected with the outer wall of the top of the welding chamber 2, and the piston rod of the lifting cylinder 7 is rotatably connected with a rotating pressure cover 8, a servo motor 9 is arranged on the top of the lifting cylinder 7, and the output shaft of the servo motor 9 is fixedly connected with a supporting bracket 10, and a positioning collar 11 is arranged between the rotating pressure cover 8 and the supporting bracket 10.

[0026] In this embodiment, the bearing can be placed directly on the support bracket 10, and the double-headed cylinder 3 can simultaneously contract the piston rods at both ends, so that the sleeves 5 on the two connecting plates 4 can approach each other until the positioning wheel 6 is tightly against the outer ring of the bearing, thereby realizing the automatic positioning of the bearing. In addition, the end pipe can move from top to bottom, and relying on the positioning of the positioning ring 11, the end pipe can accurately fall on the bearing, thereby realizing the mutual positioning between the bearing and the end pipe. Subsequently, the lifting cylinder 7 drives the rotating pressure cover 8 to move down and stick to the end pipe, and drives the support bracket 10 to rotate through the servo motor 9. The bearing and the end pipe can rotate at the same time, which reduces the difficulty of positioning and facilitates subsequent welding.

[0027] Example 2, refer to Figure 5 A bearing end face automatic welding device, wherein the top inner wall of the welding chamber 2 is rotatably connected with a top sleeve 12, and the bottom outer wall of the top sleeve 12 is fixedly connected with a gear ring 13, the outer wall of the gear ring 13 is meshed with a gear 14, and a reducer 15 is installed on the top outer wall of the gear 14, the bottom outer wall of the gear ring 13 is fixedly connected with a servo guide rail 16, and a connecting rod 17 is fixedly connected to the slider of the servo guide rail 16, and a laser welding head 18 is installed on the bottom outer wall of the connecting rod 17.

[0028] In this embodiment, the gear 14 is driven to rotate by the reducer 15, so that the rotation of the ring gear 13 can be controlled. Since the servo guide 16 is installed at the bottom of the ring gear 13, when the laser welding head 18 moves to the vicinity of the connection between the bearing and the end tube, the laser welding head 18 can complete the automatic welding of the bearing end face under the action of the rotation of the ring gear 13. The mechanized operation has high stability, reduces the difficulty of welding, and ensures the quality of welding.

[0029] Reference Figures 3 to 4 A bearing is placed on the top of the support bracket 10, and an end tube is arranged on the top of the bearing. The positioning wheel 6 is slidably connected to the outer wall of the bearing, the end tube is rotatably connected to the inner wall of the positioning ring 11, and the rotating pressure cover 8 is tightly attached to the top outer wall of the end tube.

[0030] Reference Figures 2 to 4 A support frame 19 and a fixed plate 20 are welded to the outer wall of one side of the vertical plate 1, and the double-headed cylinder 3 and the servo motor 9 are respectively fixedly connected to the top outer walls of the support frame 19 and the fixed plate 20, and the positioning ring 11 is welded to the outer wall of one side of the vertical plate 1.

[0031] Reference Figure 2 A symmetrically distributed slide groove 21 is provided on the outer wall of one side of the vertical plate 1 , and the connecting plate 4 is slidably connected to the inner wall of the slide groove 21 .

[0032] Reference Figure 1 A dust suction area 22 is arranged on the outer wall of one side of the vertical plate 1 at the top of the slide 21 , and a dust removal box 23 with a dust suction pump is installed on the outer wall of the other side of the vertical plate 1 at one side of the dust suction area 22 .

[0033] Reference Figure 1 A bearing placement area 24 and an end tube placement area 25 are respectively provided on both sides of the bottom inner wall of the welding chamber 2, and a waste chip collection frame 26 is fixedly connected to the top outer wall of the bearing placement area 24 and the end tube placement area 25.

[0034] Reference Figures 1 to 5 A PLC controller 27 is fixedly connected to the outer wall of one side of the vertical plate 1, and the PLC controller 27 is connected to the double-head cylinder 3, the lifting cylinder 7, the servo motor 9, and the reducer 15 through signal lines.

[0035] Working principle: The outer ring of the bearing and the end tube are placed in the bearing placement area 24 and the end tube placement area 25 respectively. When using the equipment, first place the bearing directly on the support bracket 10, and use the double-headed cylinder 3 to simultaneously contract the piston rods at both ends, so that the ferrules 5 on the two connecting plates 4 can approach each other until the positioning wheel 6 is tightly attached to the outer ring of the bearing, and then the end tube is passed through the positioning collar 11 to abut against the outer ring of the bearing, and then the lifting cylinder 7 drives the rotating pressure cover 8 to move down to abut against the end tube;

[0036] Afterwards, the gear 14 is driven to rotate by the reducer 15 to control the rotation of the ring gear 13. Since the servo guide 16 is installed at the bottom of the ring gear 13, when the laser welding head 18 moves to the vicinity of the connection between the bearing and the end pipe, there are two modes to choose from. One is to use the servo motor 9 to drive the support bracket 10 to rotate to control the laser welding head 18 for fast welding, and the other is to use the laser welding head 18 to complete slow welding under the action of the rotation of the ring gear 13.

[0037] In the description of the present invention, it is necessary to understand that the terms "up", "down", "front", "back", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0038] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0039] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A bearing end surface automatic welding device, comprising a vertical plate (1), characterized in that: A welding chamber (2) is arranged on the outer wall of one side of the vertical plate (1), and a double-headed cylinder (3) is arranged inside the welding chamber (2), piston rods at both ends of the double-headed cylinder (3) are fixedly connected to connecting plates (4), and outer walls of one side of the two connecting plates (4) are fixedly connected to ferrules (5), the inner walls of the ferrules (5) are rotatably connected to symmetrically distributed positioning wheels (6), a lifting cylinder (7) is fixedly connected to the outer wall of the top of the welding chamber (2), and the piston rod of the lifting cylinder (7) is rotatably connected to a rotating pressure cover (8), a servo motor (9) is arranged on the top of the lifting cylinder (7), and the output shaft of the servo motor (9) is fixedly connected to a supporting bracket (10), and a positioning collar (11) is arranged between the rotating pressure cover (8) and the supporting bracket (10); The top inner wall of the welding chamber (2) is rotatably connected to a top sleeve (12), and the bottom outer wall of the top sleeve (12) is fixedly connected to a gear ring (13), the outer wall of the gear ring (13) is meshed with a gear (14), and a reducer (15) is installed on the top outer wall of the gear (14), the bottom outer wall of the gear ring (13) is fixedly connected to a servo guide rail (16), and a connecting rod (17) is fixedly connected to the slider of the servo guide rail (16), and a laser welding head (18) is installed on the bottom outer wall of the connecting rod (17).

2. The automatic bearing end surface welding device according to claim 1, characterized in that: A bearing is placed on the top of the support bracket (10), and an end tube is arranged on the top of the bearing. The positioning wheel (6) is slidably connected to the outer wall of the bearing, the end tube is rotatably connected to the inner wall of the positioning ring (11), and the rotating pressure cover (8) is tightly attached to the top outer wall of the end tube.

3. The automatic bearing end surface welding device according to claim 1 is characterized in that: A support frame (19) and a fixed plate (20) are welded to the outer wall of one side of the vertical plate (1), and a double-headed cylinder (3) and a servo motor (9) are respectively fixedly connected to the top outer walls of the support frame (19) and the fixed plate (20), and a positioning ring (11) is welded to the outer wall of one side of the vertical plate (1).

4. The bearing end surface automatic welding device according to claim 1, characterized in that: The outer wall of one side of the vertical plate (1) is provided with symmetrically distributed sliding grooves (21), and the connecting plate (4) is slidably connected to the inner wall of the sliding groove (21).

5. The automatic bearing end surface welding device according to claim 1, characterized in that: A dust suction area (22) is arranged on the outer wall of one side of the vertical plate (1) at the top of the slide groove (21), and a dust removal box (23) with a dust suction pump is installed on the outer wall of the other side of the vertical plate (1) at one side of the dust suction area (22).

6. The automatic bearing end surface welding device according to claim 1, characterized in that: A bearing placement area (24) and an end pipe placement area (25) are respectively arranged on both sides of the bottom inner wall of the welding chamber (2), and a waste chip collection frame (26) is fixedly connected to the top outer wall of the bearing placement area (24) and the end pipe placement area (25).

7. The automatic bearing end surface welding device according to claim 1, characterized in that: A PLC controller (27) is fixedly connected to the outer wall of one side of the vertical plate (1), and the PLC controller (27) is connected to the double-head cylinder (3), the lifting cylinder (7), the servo motor (9), and the reducer (15) through signal lines.

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