Automobile chassis parts welding mechanism

Abstract

The present invention discloses a welding mechanism for automobile chassis parts, including a welding arm and a welding seat. The welding seat is provided with a base, a cylinder, a fixed seat, a sliding seat, a movable seat and a limiting mechanism arranged on the sliding seat. The limiting mechanism is provided with a mounting plate, a pressure plate and a plurality of pressure assemblies arranged on the mounting plate. The automobile chassis parts welding mechanism has a compact structure and an ingenious design. When adjusting the angle of the welding assembly, it is only necessary to rotate the adjusting member to separate the limiting member from the fixed block, thereby adjusting the angle between the welding head and the fixed block. The structure is small, the adjustment angle is stable, the operation is convenient, and the operation during welding is not affected. In addition, the welding seat used realizes the position limitation of the plate body and the beam body through the limiting mechanism, and the number of the plate bodies in the front cross beam can be changed according to different vehicle models, which is convenient for timely changing the structure of the front cross beam, thereby improving the flexibility and practicality of the welding seat.

Description

Technical Field

[0001] The invention relates to welding technology, in particular to a welding mechanism for automobile chassis parts. Background Art

[0002] When a welding robot arm is used, if a motor is used to control the angle of the welding head, although the angle of the welding head can be adjusted quickly and stably, during actual welding work, a larger motor part will affect the welding operation, thereby affecting the welding processing of some special welding parts.

[0003] In addition, when welding the front cross beam on the cylinder chassis, multi-layer plate welding is required to enhance the anti-collision capability of the front cross beam. During welding, the welding fixing seat is clamped by a cylinder. However, when clamping with a cylinder, not only pipelines need to be laid for the cylinder, but also a large amount of external air source is required. At the same time, since the front cross beam is a multi-layer structure, it needs to be clamped with more cylinders, which occupies a large area and affects the welding operation. Summary of the invention

[0004] In order to solve the defects of the prior art mentioned above, the present invention proposes a welding mechanism for automobile chassis parts.

[0005] The technical solution of the present invention is achieved in this way:

[0006] An automobile chassis welding mechanism, characterized by comprising:

[0007] A welding arm, wherein the welding arm is provided with a welding assembly, wherein the welding assembly is provided with a fixed block, an adjusting member and a welding head, wherein the fixed block and the welding head are hingedly connected via a hinge, wherein the fixed block is provided with a positioning portion, wherein the positioning portion is provided with a plurality of first teeth, wherein the welding head is provided with an adjusting block, wherein a circular hole is provided in the middle of the adjusting block, wherein the adjusting member is arranged in the circular hole, wherein a movable hole and a sliding hole communicating with the circular hole are provided on the inner wall of the circular hole, wherein the movable hole and the sliding hole are arranged in opposite surfaces, wherein a first elastic member and a limiting bead are provided in the movable hole, wherein a limiting member is provided in the sliding hole, wherein a second tooth cooperating with the first tooth is provided on the limiting member, wherein a first contact surface and a second contact surface cooperating with the limiting member are provided on the adjusting member, wherein the first contact surface and the second contact surface are continuously connected, wherein when the first contact surface is kept in contact with the limiting member, the first tooth is meshed with the second tooth, and when the second contact surface is kept in contact with the limiting member, the first tooth is separated from the second tooth.

[0008] A welding seat matched with the welding arm, wherein the welding seat is provided with a base, a cylinder, a fixed seat, a sliding seat, a movable seat and a limiting mechanism arranged on the sliding seat, the fixed seat and the cylinder are arranged on the base, the base is provided with a movable groove matched with the movable seat, the base is provided with a sliding groove, the sliding seat is provided with a slide rail matched with the sliding groove, the movable groove is arranged between the sliding seat and the fixed seat, the cylinder is connected with the sliding seat, and an unlocking seat is also arranged between the sliding seat and the cylinder,

[0009] The limiting mechanism is provided with a mounting plate, a pressure plate and a plurality of pressure components arranged on the mounting plate, the mounting plate is provided with a protrusion, the pressure component is installed on the protrusion, the pressure component is provided with a fixed plate, an unlocking member, a pressure member and a second elastic member, the pressure plate is arranged on the fixed plate, the unlocking member is arranged on the fixed plate through a first rotating shaft, the pressure member is arranged on the fixed plate through a second rotating shaft, a strip groove is provided on the pressure member, one end of the second elastic member is arranged on the fixed plate, and the other end is arranged in the strip groove, the unlocking member is provided with an unlocking rod, the unlocking rod is placed at the lower end of the pressure member, and an installation gap is left between the pressure plate and the mounting plate.

[0010] In the present invention, the outer wall of the adjusting member is an arc surface, which is kept in contact with the inner wall of the circular hole, and the arc surface is provided with a first limiting opening and a second limiting opening for accommodating the limiting beads.

[0011] In the present invention, a center line formed by the center of the first limit opening and the center of the adjusting member is perpendicular to an extension line of the first contact surface, and a center line formed by the center of the second limit opening and the center of the adjusting member is perpendicular to the second contact surface.

[0012] In the present invention, the angle between the first contact surface and the second contact surface is 33°, and the angle between the first limiting opening and the second limiting opening is also 33°.

[0013] In the present invention, the unlocking seat is provided with a horizontal surface and an inclined surface extending toward the base.

[0014] In the present invention, the unlocking member is composed of a pushing section, a rotating ring, a pressure section, an extension section and an unlocking section. A rotating hole for accommodating the first rotating shaft is provided in the middle of the rotating ring. A supporting rod in contact with the pushing section is also provided on the fixed plate.

[0015] In the present invention, the angle between the pushing section and the pressing section is less than 180°.

[0016] In the present invention, the second elastic member is composed of a mounting section, a flip section, a spiral section and a force-bearing section. The force-bearing section is arranged in the strip groove, and a mounting hole matching the mounting section is provided on the fixing plate.

[0017] In the present invention, symmetrically arranged planes are provided on the installation section.

[0018] In the present invention, an extension portion is provided at the lower end of the pressure member, and the extension portion is kept in contact with the mounting plate. An arc surface cooperating with the unlocking rod is provided at the connection between the extension portion and the pressure member.

[0019] The automobile chassis welding mechanism of the present invention has the following beneficial effects: the automobile chassis welding mechanism has a compact structure and an ingenious design. When adjusting the angle of the welding assembly, it is only necessary to rotate the adjusting member to separate the limiting member from the fixing block, thereby adjusting the angle between the welding head and the fixing block. The structure is small, the angle adjustment is stable, the operation is convenient, and the operation during welding is not affected. In addition, the welding seat used realizes the position limitation of the plate body and the beam body through the limiting mechanism, and the number of plates in the front cross beam can be changed according to different vehicle models, which is convenient for timely changing the structure of the front cross beam, and improves the flexibility and practicality of the welding seat. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of the automobile chassis welding mechanism of the present invention;

[0021] Figure 2 for Figure 1 Schematic diagram of the welding assembly structure;

[0022] Figure 3 for Figure 2 Exploded diagram of

[0023] Figure 4 for Figure 3 A perspective view of the welding head structure in FIG.

[0024] Figure 5 for Figure 3 Schematic diagram of the fixed block structure in;

[0025] Figure 6 for Figure 3 A schematic structural diagram of the adjusting member, the hinge member and the first elastic member in FIG.

[0026] Figure 7 for Figure 6 A schematic diagram of the structure in another direction;

[0027] Figure 8 for Figure 6 Another state diagram of ;

[0028] Fig. 9 for Figure 1 Schematic diagram of the welding seat structure;

[0029] Fig.10 for Fig. 9 Schematic diagram of the limiting mechanism structure in FIG.

[0030] Fig.11 for Fig.10 The main view of

[0031] Fig.12 for Fig.10 Schematic diagram of the structure of the pressure component;

[0032] Fig.13 for Fig.12 A schematic diagram of the structure in another direction;

[0033] Fig.14 for Fig.13 A schematic structural diagram of the second elastic member in FIG.

[0034] Fig.15 for Fig.13 A schematic diagram of the pressure member structure;

[0035] Fig.16 It is a schematic diagram of the welding part structure in the present invention.

[0036] In the figure: welding arm 1, welding seat 2, welding part 3, beam body 4, first plate body 5, second plate body 6, third plate body 7, first area 8, second area 9, movable seat 10, welding assembly 11, fixing block 12, adjusting part 13, welding head 14, hinge 15, tightening part 16, rod body 17, threaded part 18, adjusting block 19, threaded hole 20, positioning part 21, first tooth 22, first extension block 23, second extension block 24, rotating hole 25, through hole 26, circular hole 27, movable hole 28, sliding hole 29, first elastic part 30, limiting bead 31, limiting part 32, second tooth 33, first contact surface 34, second contact surface 35, arc surface 36, first limiting opening 37, second limiting opening 38, center line 3 9. Extension line 40. Base 41. Cylinder 42. Fixed seat 43. Sliding seat 44. Limiting mechanism 45. Movable groove 46. Sliding groove 47. Slide rail 48. Unlocking seat 49. Horizontal plane 50. Inclined plane 51. Unlocking section 52. Unlocking rod 53. Pressure member 54. Mounting plate 55. Pressure plate 56. Protrusion 57. Pressure assembly 58. Fixed plate 59. Unlocking member 60. Second elastic member 61. First rotating shaft 62. Second rotating shaft 63. Strip groove 64. Mounting gap 65. Pushing section 66. Rotating ring 67. Pressure section 68. Extension section 69. Support rod 70. Mounting section 71. Flipping section 72. Spiral section 73. Force section 74. Mounting hole 75. Plane 76. Extension section 77. Arc surface 78. Arc surface 79. DETAILED DESCRIPTION

[0037] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0038] like Figures 1 to 16 As shown, the automobile chassis welding mechanism of the present invention includes a welding arm 1 and a welding seat 2. The welding arm 1 adopts a welding robot arm, and the welding robot arm can adopt the existing technology, which will not be elaborated here, and the welding assembly 11 on the welding arm 1 can realize the angle adjustment of the welding head 14, which is used for welding processing for different welding parts 3 structures. The welding seat 2 can clamp and fix the plate body and the beam body 4 of the front cross beam structure adapted to different vehicle models, so that the plate bodies with different layers can be welded on the beam body 4.

[0039] like Fig.16 As shown, the welded part 3 is a front cross beam of an automobile, which is composed of a beam body 4 and multiple plates. The plates are welded to the beam body 4, and the plates are composed of a first plate body 5, a second plate body 6 and a third plate body 7. The first plate body 5 is arranged at the upper end of the second plate body 6, and the second plate body 6 is arranged at the upper end of the third plate body 7. A first area 8 is formed between the first plate body 5 and the second plate body 6, and a second area 9 is formed between the second plate body 6 and the third plate body 7. The side of the beam body 4 facing the outside is the a surface, and the side facing the inside is the b surface, and the b surface is kept in contact with the first plate body 5 and the second plate body 6. During welding, the first plate body 5 and the second plate body 6 are welded in contact with the b surface, and the third plate body 7 is located at the lower end of the beam body 4, and the beam body 4 is welded by the third plate body 7.

[0040] When the first plate body 5 and the second plate body 6 are welded, the welding can be achieved by keeping the position of the beam body 4 unchanged, and the third plate body 7 keeps the beam body 4 placed on the upper end of the third plate body 7, thereby achieving the welding process.

[0041] When the third plate body 7 is welded, the third plate body 7 is placed on the movable seat 10 by lifting the movable seat 10 , and then the beam body 4 and the first plate body 5 and the second plate body 6 are welded to the third plate body 7 .

[0042] A welding assembly 11 is provided on the welding arm 1, and a fixing block 12, an adjusting member 13 and a welding head 14 are provided in the welding assembly 11. The fixing block 12 remains connected to the main body of the welding arm 1, and the fixing block 12 and the welding head 14 are hingedly connected via a hinge 15. The hinge 15 consists of a tightening portion 16 and a rod body 17. A threaded portion 18 is provided on the rod body 17, and a threaded hole 20 matching the threaded portion 18 is provided on the adjusting block 19.

[0043] The fixing block 12 is provided with a positioning portion 21, and the positioning portion 21 is provided with a plurality of first teeth 22. The welding head 14 is provided with an adjusting block 19, and the adjusting block 19 is provided with a first extending block 23 and a second extending block 24. The first extending block 23 is provided with a rotating hole 25 for accommodating the tightening portion 16 and a through hole 26 for accommodating the rod body 17, and the second extending block 24 is provided with a threaded hole 20 that cooperates with the threaded portion 18.

[0044] A circular hole 27 is provided in the middle of the adjusting block 19, and the adjusting member 13 is arranged in the circular hole 27. A movable hole 28 and a sliding hole 29 are provided on the inner wall of the circular hole 27, which are connected to the circular hole 27. The movable hole 28 and the sliding hole 29 are arranged in opposite surfaces. A first elastic member 30 and a limiting bead 31 are provided in the movable hole 28. A limiting member 32 is provided in the sliding hole 29, and a second tooth 33 matching with the first tooth 22 is provided on the limiting member 32.

[0045] The adjusting member 13 is provided with a first contact surface 34 and a second contact surface 35 which cooperate with the limiting member 32. The first contact surface 34 and the second contact surface 35 are continuously connected. When the first contact surface 34 remains in contact with the limiting member 32, the first tooth 22 is meshed with the second tooth 33. When the second contact surface 35 remains in contact with the limiting member 32, the first tooth 22 is separated from the second tooth 33.

[0046] The outer wall of the adjusting member 13 is an arcuate surface 36, which is in contact with the inner wall of the circular hole 27. The arcuate surface 36 is provided with a first limiting opening 37 and a second limiting opening 38 for accommodating the limiting bead 31. A center line 39 formed by the center of the first limiting opening 37 and the center of the adjusting member 13 is arranged perpendicularly to an extension line 40 of the first contact surface 34, and a center line 39 formed by the center of the second limiting opening 38 and the center of the adjusting member 13 is arranged perpendicularly to the second contact surface 35. The first limiting opening 37 corresponds to the first contact surface 34, and the second limiting opening 38 corresponds to the second contact surface 35.

[0047] The included angle between the first contact surface 34 and the second contact surface 35 is 33°, and the included angle between the first limiting opening 37 and the second limiting opening 38 is also 33°.

[0048] The pitch depth between the first teeth 22 and the second teeth 33 is equal to the pitch depth between the second teeth 33, and the depth value is H1. Figure 8 As shown, the adjusting member 13 is in a rotating state at this time, and the second contact surface 35 is kept in cooperation with the limiting member 32. At this time, the distance between the limiting member 32 and the second contact surface 35 is H2, and H1<H2. Therefore, when the limiting member 32 is in contact with the second contact surface 35 at this time, the first teeth 22 and the second teeth 33 can be kept separated, so that the welding head 14 can be rotated to change the angle between the welding head 14 and the fixed block 12. Then, the adjusting member 13 is rotated in the opposite direction, so that the first contact surface 34 can be brought into contact with the limiting member 32, and the limiting member 32 is pushed, so that the second teeth 33 on the limiting member 32 are engaged with the first teeth 22 for limiting.

[0049] The welding seat 2 is provided with a base 41, a cylinder 42, a fixed seat 43, a sliding seat 44, a movable seat 10 and a limiting mechanism 45 arranged on the sliding seat 44. The lower end of the movable seat 10 can be provided with a cylinder. The fixed seat 43 and the cylinder 42 are arranged on the base 41. The base 41 is provided with a movable groove 46 that matches the movable seat 10. The base 41 is provided with a sliding groove 47. The sliding seat 44 is provided with a slide rail 48 that matches the sliding groove 47. The movable groove 46 is arranged between the sliding seat 44 and the fixed seat 43. The cylinder 42 is connected to the sliding seat 44. An unlocking seat 49 is also arranged between the sliding seat 44 and the cylinder 42.

[0050] The unlocking seat 49 is provided with a horizontal surface 50 and an inclined surface 51 extending toward the base 41. The unlocking seat 49 is used to change the height of the unlocking section 52 so that the unlocking section 52 moves downward along the inclined surface 51, thereby allowing the unlocking rod 53 to lift the pressure member 54.

[0051] The limiting mechanism 45 is provided with a mounting plate 55, a pressure plate 56 and a plurality of pressure assemblies 58 arranged on the mounting plate 55. The mounting plate 55 is provided with a protrusion 57, and the pressure assemblies 58 are installed on the protrusion 57. The pressure assembly 58 is provided with a fixed plate 59, an unlocking member 60, a pressure member 54 and a second elastic member 61. The pressure plate 56 is arranged on the fixed plate 59, the unlocking member 60 is installed on the fixed plate 59 through a first rotating shaft 62, and the pressure member 54 is installed on the fixed plate 59 through a second rotating shaft 63. A strip groove 64 is arranged on the pressure member 54, one end of the second elastic member 61 is arranged on the fixed plate 59, and the other end is arranged in the strip groove 64, and an unlocking rod 53 is arranged on the unlocking member 60, and the unlocking rod 53 is placed at the lower end of the pressure member 54, and an installation gap 65 is reserved between the pressure plate 56 and the mounting plate 55.

[0052] The unlocking member 60 is composed of a pushing section 66, a rotating ring 67, a pressure section 68, an extension section 69 and an unlocking section 52. A rotating hole 25 for accommodating the first rotating shaft 62 is provided in the middle of the rotating ring 67. A supporting rod 70 in contact with the pushing section 66 is also provided on the fixing plate 59. The angle between the pushing section 66 and the pressure section 68 is less than 180°.

[0053] The second elastic member 61 is composed of a mounting section 71, a flip section 72, a spiral section 73 and a force section 74. The force section 74 is arranged in the strip groove 64. The fixing plate 59 is provided with a mounting hole 75 that matches the mounting section 71. A symmetrically arranged plane 76 is provided on the mounting section 71. The mounting section 71 is restricted by the plane 76 so that the mounting section 71 will not rotate, thereby keeping the flip section 72 able to rotate under force.

[0054] An extension portion 77 is provided at the lower end of the pressure piece 54, and the extension portion 77 is maintained in contact with the mounting plate 55. The extension portion 77 is used to apply pressure to the plate body so that the plate body is placed in the installation gap 65 between the mounting plate 55 and the pressure plate 56. An arc surface 78 that cooperates with the unlocking rod 53 is provided at the connection between the extension portion 77 and the pressure piece 54.

[0055] The pressure piece 54 is subjected to elastic pressure from the second elastic piece 61, which keeps the pressure piece 54 placed on the mounting plate 55. When the plate needs to be placed, the cylinder 42 is required to pull the sliding seat 44 first, so that the unlocking seat 49 guides one end of the unlocking piece 60, so that the pressure piece 54 is lifted by the unlocking piece 60, which facilitates placing the plate in the mounting gap 65. Then the cylinder 42 pushes the sliding seat 44 to reset, thereby achieving the pressure piece 54 to limit the pressure on the plate in the mounting gap 65 under the elastic pressure of the second elastic piece 61.

[0056] The beam body 4 is placed on the arc surface 79 on the fixed seat 43. The fixed seat 43 is an electromagnetic component. The beam body 4 is attracted by the fixed seat 43 to limit the position of the beam body 4, and the movable seat 10 is used to support the height of the beam body 4, so that it is convenient for the limiting mechanism 45 to place the plate at different heights and cooperate with the welding arm 1 to realize welding processing.

[0057] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A welding mechanism for automobile chassis parts, characterized in that: include: A welding arm, wherein the welding arm is provided with a welding assembly, wherein the welding assembly is provided with a fixed block, an adjusting member and a welding head, wherein the fixed block and the welding head are hingedly connected via a hinge, wherein the fixed block is provided with a positioning portion, wherein the positioning portion is provided with a plurality of first teeth, wherein the welding head is provided with an adjusting block, wherein a circular hole is provided in the middle of the adjusting block, wherein the adjusting member is arranged in the circular hole, wherein a movable hole and a sliding hole communicating with the circular hole are provided on the inner wall of the circular hole, wherein the movable hole and the sliding hole are arranged in opposite surfaces, wherein a first elastic member and a limiting bead are provided in the movable hole, wherein a limiting member is provided in the sliding hole, wherein a second tooth cooperating with the first tooth is provided on the limiting member, wherein a first contact surface and a second contact surface cooperating with the limiting member are provided on the adjusting member, wherein the first contact surface and the second contact surface are continuously connected, wherein when the first contact surface is kept in contact with the limiting member, the first tooth is meshed with the second tooth, and when the second contact surface is kept in contact with the limiting member, the first tooth is separated from the second tooth. A welding seat matched with the welding arm, wherein the welding seat is provided with a base, a cylinder, a fixed seat, a sliding seat, a movable seat and a limiting mechanism arranged on the sliding seat, the fixed seat and the cylinder are arranged on the base, the base is provided with a movable groove matched with the movable seat, the base is provided with a sliding groove, the sliding seat is provided with a slide rail matched with the sliding groove, the movable groove is arranged between the sliding seat and the fixed seat, the cylinder is connected with the sliding seat, and an unlocking seat is also arranged between the sliding seat and the cylinder, The limiting mechanism is provided with a mounting plate, a pressure plate and a plurality of pressure components arranged on the mounting plate, the mounting plate is provided with a protrusion, the pressure component is installed on the protrusion, the pressure component is provided with a fixed plate, an unlocking member, a pressure member and a second elastic member, the pressure plate is arranged on the fixed plate, the unlocking member is arranged on the fixed plate through a first rotating shaft, the pressure member is arranged on the fixed plate through a second rotating shaft, a strip groove is provided on the pressure member, one end of the second elastic member is arranged on the fixed plate, and the other end is arranged in the strip groove, the unlocking member is provided with an unlocking rod, the unlocking rod is placed at the lower end of the pressure member, and an installation gap is left between the pressure plate and the mounting plate.

2. The automobile chassis welding mechanism according to claim 1, characterized in that: The outer wall of the adjusting member is an arc-shaped surface, which keeps in contact with the inner wall of the circular hole. The arc-shaped surface is provided with a first limiting opening and a second limiting opening for accommodating the limiting beads.

3. The automobile chassis welding mechanism according to claim 2, characterized in that: A center line formed by the center of the first limit opening and the center of the adjusting member is perpendicular to an extension line of the first contact surface, and a center line formed by the center of the second limit opening and the center of the adjusting member is perpendicular to the second contact surface.

4. The automobile chassis welding mechanism according to claim 3, characterized in that: The included angle between the first contact surface and the second contact surface is 33°, and the included angle between the first limiting opening and the second limiting opening is also 33°.

5. The automobile chassis welding mechanism according to claim 1, characterized in that: The unlocking seat is provided with a horizontal surface and an inclined surface extending toward the base.

6. The automobile chassis welding mechanism according to claim 1, characterized in that: The unlocking member is composed of a pushing section, a rotating ring, a pressure section, an extension section and an unlocking section. A rotating hole for accommodating the first rotating shaft is provided in the middle of the rotating ring. A supporting rod in contact with the pushing section is also provided on the fixed plate.

7. The automobile chassis welding mechanism according to claim 6, characterized in that: The included angle between the pushing section and the pressing section is less than 180°.

8. The automobile chassis welding mechanism according to claim 1, characterized in that: The second elastic member is composed of a mounting section, a flip section, a spiral section and a force-bearing section. The force-bearing section is arranged in the strip groove, and a mounting hole matching the mounting section is arranged on the fixing plate.

9. The automobile chassis welding mechanism according to claim 8, characterized in that: The installation section is provided with symmetrically arranged planes.

10. The automobile chassis welding mechanism according to claim 1, characterized in that: An extension portion is provided at the lower end of the pressure member, and the extension portion is kept in contact with the mounting plate. An arc surface cooperating with the unlocking rod is provided at the connection between the extension portion and the pressure member.

Images