Controller shell welding device

Abstract

The invention discloses a controller shell welding device, and belongs to the technical field of shell welding. The device mainly comprises a shell, a box body, an abutting table fixed to the box body, a first axe part, a second axe part and a third axe part. The abutting table is at least provided with a first right-angle face and a second right-angle face which are used for containing the shell, and the first right-angle face and the second right-angle face are in butt joint to form a first right angle to provide The first axe part is provided with a second right angle, is arranged on the abutting table in a sliding manner and can be accurately aligned with the first right angle; the second axe part comprises a rolling ball driven by an air cylinder, and the rolling ball is stably locked through a locking mechanism after abutting against the shell; the third axe part comprises a third right-angle abutting part which abuts against the end, away from the first axe part, of the shell. Three-dimensional cooperative axe is achieved through the first axe part, the second axe part and the third axe part, it is ensured that the side face of the shell is aligned with the first right angle, the spot welding fixing procedure before welding is omitted, the process is simplified, and meanwhile the welding seam quality is remarkably improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of shell welding, in particular to a controller shell welding device. BACKGROUND

[0002] The controller shell is the core protection structure and internal element installation carrier of equipment in the fields of locomotive and industrial control, and the welding quality thereof is directly related to the structural stability, protection sealing performance and long-term operation reliability of the equipment. In the shell welding process, precise positioning is required to ensure that the side surfaces of the components of the shell are aligned, so as to avoid size deviation or assembly gap problems after welding. Therefore, the stability of the positioning reference and the coordination of the positioning mechanism are the core prerequisite for ensuring the welding precision of the shell.

[0003] The existing welding process of the controller shell has obvious limitations. Generally, two shell plates are first aligned by manual operation, then pre-fixed by spot welding, and after pre-fixing, the shell is placed in the welding device for formal welding. This method not only leads to a complicated process flow, increasing the operation time and labor input, but also produces welding stress due to the superposition of pre-fixing and formal welding, causing slight deformation of the shell and damaging the flatness and consistency of the main weld, ultimately resulting in reduced weld quality, which cannot meet the welding technical requirements of high-precision controller shells. SUMMARY

[0004] In view of the above technical deficiencies, the purpose of the present application is to provide a controller shell welding device to solve the problem of complicated operation process and reduced weld quality caused by pre-fixing the butt welding points first in the prior art.

[0005] To solve the above technical problems, the present application adopts the following technical scheme: the present application provides a controller shell welding device, which comprises: an abutting table fixed on a box, the abutting table having at least a first right angle surface and a second right angle surface for placing the shell, the first right angle surface and the second right angle surface abutting to form a first right angle; a first alignment part having a second right angle, the first alignment part being slidingly arranged on the abutting table and aligning the second right angle with the first right angle; a second alignment part, the second alignment part comprising a rolling ball, the rolling ball being driven by a gas cylinder to abut on the shell and being locked by a locking mechanism; and a third alignment part, the third alignment part comprising an abutting part having a third right angle, the abutting part abutting on one end of the shell away from the first alignment part; wherein the first alignment part, the second alignment part and the third alignment part abut and align the shell from three-dimensional directions to align the side surface of the shell at the first right angle.

[0006] Preferably, the abutting table is internally hollow, a first lead screw is rotatably connected in the abutting table, the first lead screw is driven by a first motor fixed in the box, and a notch is further formed in the side of the abutting table away from the box.

[0007] Preferably, the first square part comprises a square buckle with a second right angle, the first right angle surface and the second right angle surface are both provided with square plates, the two square plates are connected by a cover, and the square buckle is arranged on the square plate.

[0008] Preferably, a connecting plate is fixed on the cover, the connecting plate passes through the notch, a threaded plate is fixed, and the threaded plate is threadedly connected to the first lead screw.

[0009] Preferably, the air cylinder is fixed on a support, the support is fixed on the box, a threaded cap is fixed on the output shaft of the air cylinder, the rolling ball is rotatably connected in the threaded cap, and a fixing cover is further threadedly connected to the threaded cap.

[0010] Preferably, the rolling ball comprises an inner ball ring, an outer half ball is rotatably arranged outside the inner ball ring, and the outer half ball is arranged in the threaded cap through a rotating shaft.

[0011] Preferably, the inner ball ring rotates along the axial direction of the rotating shaft, and the outer half ball rotates along the radial direction of the rotating shaft.

[0012] Preferably, the third square part comprises a plurality of support plates arranged in an array on both sides of the abutting table, the support plates are fixed on the box, a screw rod is arranged on one side of the support plate and is also fixed on the box, the abutting part is sleeved outside the screw rod and is locked by a cap.

[0013] Preferably, the welding gun is further driven by a driving mechanism to move along the first right angle.

[0014] Preferably, the driving mechanism comprises a second lead screw seat fixed on the box, a third lead screw driven to rotate by a third motor is rotatably connected to the second lead screw seat, a first lead screw seat is threadedly connected to the third lead screw, a second lead screw driven by a second motor is rotatably connected to the first lead screw seat, and the welding gun is threadedly connected to the second lead screw.

[0015] The present application has the following advantages: The application sets the abutting table with the first right angle as the welding reference platform, and cooperates the first, second and third alignment parts to realize the accurate positioning and stable clamping of the controller shell in three-dimensional space. The structure design enables the shell side to be accurately aligned at the first right angle, eliminates the need for the spot welding pre-fixing step in the traditional process, greatly simplifies the welding process, improves the production efficiency, effectively avoids the thermal stress deformation problem caused by spot welding, and significantly improves the overall quality and consistency of the weld.

[0016] Meanwhile, the first alignment part of the application adopts the slidable alignment buckle structure, which has the second right angle accurately aligned with the first right angle and can provide the main positioning force during the alignment process. After positioning is completed, the alignment buckle can be separated from the alignment plate, which facilitates the welding gun to access the weld area for welding operation, and takes into account the positioning accuracy and operation convenience.

[0017] Furthermore, the second alignment part of the application adopts the structure of the cylinder driving the ball, which has the multi-degree-of-freedom adjustment capability. Through the composite rotation design of the inner ball ring and the outer hemisphere, the position fine adjustment can be realized when the shell is contacted, and the shell is completely matched with the abutting surface. After fine adjustment is completed, the stable locking is realized through the locking mechanism, which further guarantees the structural stability during the welding process.

[0018] In addition, the third alignment part of the application sets the adjustable abutting part in cooperation with the screw rod to form the adjustable clamping area, which can adapt to the welding requirements of different size shells and enhance the versatility and application scenarios of the equipment.

[0019] In summary, the application uses multiple alignment mechanisms to align the shell on the abutting table from three-dimensional directions, thereby avoiding the low efficiency and affecting the weld quality caused by the need for pre-spot welding fixation in the prior art. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description only some embodiments of the application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0021] Figure 1 It is the overall structure diagram of a controller shell welding device of the application.

[0022] Figure 2 It is the three-dimensional structure diagram of a controller shell welding device of the application (without welding gun and its driving structure).

[0023] Figure 3This is a three-dimensional diagram of an abutment platform of a controller housing welding device according to the present invention.

[0024] Figure 4 This is a three-dimensional exploded view of the first front part of a controller housing welding device of the present invention.

[0025] Figure 5 This is a partial cross-sectional view of a controller housing welding device of the present invention.

[0026] Figure 6 A controller shell welding device of the present invention Figure 5 Enlarged view of point A in the middle.

[0027] Figure 7 This is a three-dimensional structural diagram of the second front part of a controller housing welding device of the present invention.

[0028] Figure 8 This is a partial three-dimensional exploded view of the second axe front part of a controller housing welding device of the present invention and an enlarged view of point B.

[0029] Figure 9 This is a three-dimensional diagram of the third front part and the box body of a controller shell welding device of the present invention.

[0030] Figure 10 A controller shell welding device of the present invention Figure 9 Enlarged view of point C in the middle.

[0031] Figure 11 A controller shell welding device of the present invention Figure 1 Enlarged view of point A in the middle.

[0032] Description of reference numerals: 1. Shell; 2. Box body; 3. Abutment platform; 31. Notch; 32. First screw rod; 33. First motor; 4. First axe-correcting part; 41. Axe-correcting plate; 42. Axe-correcting buckle; 43. Cover; 44. Connecting plate; 45. Threaded plate; 5. Second axe main part; 51. Bracket; 52. Cylinder; 53. Threaded cap; 54. Fixed cover; 55. Rolling ball; 551. Inner ball ring; 552. Outer hemisphere; 553. Rotating shaft; 6. Third axe main part; 61. Support plate; 62. Abutment part; 63. Cover cap; 64. Screw; 7. Welding gun; 71. Second screw rod; 72. Second motor; 73. First screw rod holder; 74. Third screw rod; 75. Third motor; 76. Second screw rod holder. DETAILED DESCRIPTION

[0033] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments of the present application, all the other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0034] As described above, the welding process of the existing controller shell has obvious limitations. Generally, the two shell plates are first aligned by manual operation, then pre-fixed by spot welding, and then the shell is placed into the welding device for formal welding. This method leads to a complicated process flow, increases the operation time and labor input, and the superposition of the pre-welding and the subsequent formal welding generates welding stress, causing slight deformation of the shell, which in turn destroys the flatness and consistency of the main weld, ultimately resulting in reduced weld quality, which is difficult to meet the welding technical requirements of high-precision controller shells.

[0035] To this end, the present application provides a welding device applied to the welding field of locomotive controller shells. The device aligns and clamps two independent shells in multiple dimensional directions to achieve their relative fixation before welding, thereby avoiding the need for pre-welding and pre-fixing of the shells. The present application is solved by the following means.

[0036] Embodiment one: Please refer to the drawings in the description Figures 1 to 11 As shown in the figure, the present application provides a controller shell welding device, which includes a box body 2 and a welding gun 7 arranged on the box body 2. The upper part of the box body 2 is a concave mechanism, and the recessed part is used to accommodate the displacement of the welding gun 7. The welding gun 7 is fixed on the box body 2 by a driving structure. The driving mechanism includes a second screw rod seat 76 fixed on the box body 2, a third screw rod 74 driven to rotate by a third motor 75 rotatably connected on the second screw rod seat 76, a first screw rod seat 73 threadedly connected on the third screw rod 74, a second screw rod 71 driven by a second motor 72 rotatably connected on the first screw rod seat 73, and the welding gun 7 is threadedly connected on the second screw rod 71.

[0037] As Figures 1 to 3 shown in this embodiment, the front end of the box body 2 is fixed with an abutting table 3 (as Figure 1 or Figure 2 shown, the box body 2 is also provided with a control box. For convenience of description, the side of the box body 2 close to the abutting table 3 is defined as the front side, and the side close to the control box is defined as the right side. Correspondingly, it has a back side, a left side and an upper and lower side. However, this direction is only for convenient description and display, and therefore cannot be interpreted as a limitation on the mechanism of the present application and its various embodiments), as Figure 3As shown, the abutment platform 3 is square, with its four corners facing up, down, left, and right. The top corner of the abutment platform 3 is flush with the bottom surface of the recessed portion of the housing 2. This corner is a first right angle, which extends to either side, forming a first right-angled surface and a second right-angled surface. The abutment platform 3 is a hollow structure connected to the outside through a notch 31 at the front end of the abutment platform 3. A first screw rod 32 is rotatably disposed within the hollow structure of the abutment platform 3. The shaft of the first screw rod 32 extends into the housing 2 and is fixed to the output shaft of a first motor 33 provided within the housing 2.

[0038] like Figure 4 As shown, in the first embodiment, a first axe-straightening portion 4 is provided on the abutment platform 3, and the first axe-straightening portion 4 includes axe-straightening plates 41 respectively attached to the first right-angled surface and the second right-angled surface, and the two axe-straightening plates 41 are connected by a cover 43. The cover 43 abuts against the front end of the abutment platform 3 when the axe-straightening plate 41 is completely attached to the abutment platform 3. The axe-straightening plate 41 and the cover 43 surround each other to form an upward, through-welding space. At the same time, a slide groove is provided on the top of the axe-straightening plate 41, and an axe-straightening buckle 42 is slidably connected in the slide groove. The axe-straightening buckle 42 has a second right angle facing downward, and when the axe-straightening buckle 42 is slidably connected to the axe-straightening plate 41, the second right angle and the first right angle are close to each other.

[0039] At the same time, a connecting plate 44 is fixed to the rear portion of the cover 43, and the connecting plate 44 passes through the notch 31 and extends into the hollow portion of the abutment platform 3 (such as Figures 5 to 6 A threaded plate 45 is fixed on the connecting plate 44 . The threaded plate 45 is adapted to the shape of the hollow portion of the abutment platform 3 . The threaded plate 45 is threadedly connected to the first screw rod 32 .

[0040] Therefore, when the present embodiment 1 is specifically implemented, the operator places the shell 1 to be welded on the first right-angled surface and the second right-angled surface of the abutment table 3, and adjusts the approximate position appropriately. At this time, the threaded plate 45 is located at the front end closest to the abutment table 3. The axe plate 41 does not contact the first right-angled surface and the second right-angled surface. The output shaft of the first motor 33 is then driven to rotate, and the first screw rod 32 rotates accordingly, driving the threaded plate 45 to move toward the box body 2. At this time, the movement of the threaded plate 45 drives the axe plate 41 and the cover 43 to move until the cover 43 touches the abutment table 3. During this process, the cover 43 gradually reduces the distance between it and the abutment table 3. At this time, if the shell 1 exceeds the front end of the abutment table 3, it will be pushed back by the cover 43 to complete the docking.

[0041] After the docking is completed, the operator manually picks the notch on the axe buckle 42 and pulls the axe buckle 42 away from the axe plate 41, thereby exposing the welding area. At this time, the welding gun 7 is driven to move through the welding area to weld the two docked shells 1.

[0042] Embodiment Two Based on the above embodiment, in order to further clearly and completely explain the technical solutions therein, the present application further provides Embodiment Two. As shown in Figures 1 to 2 , 7 to Figure 8 In this embodiment two, the box body 2 is fixed with symmetrically arranged supports 51, and a plurality of cylinders 52 are fixed on the supports 51. The output shafts of the cylinders 52 pass through the supports 51 and are close to the surface of the shell 1. At the same time, the output shafts of the cylinders 52 are provided with second fixing parts 5, which include threaded caps 53 fixed on the output shafts of the cylinders 52.

[0043] As shown in Figure 8 , a rolling ball 55 is arranged in the threaded cap 53. The rolling ball 55 includes an inner spherical ring 551, and an outer half-sphere 552 is rotatably arranged on the outside of the inner spherical ring 551. The outer half-sphere 552 is arranged in the threaded cap 53 through a rotating shaft 553. The contact surfaces of the inner spherical ring 551 and the outer half-sphere 552 with the shell 1 are covered with a rubber layer to increase the frictional force. The inner spherical ring 551 rotates along the axial direction of the rotating shaft 553, and the outer half-sphere 552 rotates along the radial direction of the rotating shaft 553. A fixing cover 54 is threadedly connected to the threaded cap 53 and is arranged outside the rolling ball 55. When the fixing cover 54 is screwed, it moves relative to the threaded cap 53. When the fixing cover 54 is screwed to the farthest position from the cylinder 52, it tightly abuts against the surface of the shell 1.

[0044] Thus, when this embodiment two is implemented, the operator places the shell 1 on the abutting table 3, and then drives the cylinder 52 to move the threaded cap 53 and the rolling ball 55 in it until the rolling ball 55 abuts against the surface of the shell 1. Then the shell 1 is fine-tuned through the process in Embodiment One. During the movement, the inner spherical ring 551 and the outer half-sphere 552 rotate along the axial direction and the radial direction of the rotating shaft 553, respectively, according to the moving direction of the shell 1, so as to adapt to the movement of the shell 1. When the shell 1 moves to the designated position, the fixing cover 54 can be fixed with the shell 1 by screwing.

[0045] Embodiment Three Based on the above embodiment, in order to further clearly and completely explain the technical solutions therein, the present application further provides Embodiment Three. As shown in Figures 1 to 2 , Figures 9 to 10As shown, in this embodiment three, the box 2 is provided with a third alignment part 6, which includes a plurality of support plates 61 arranged in an array on both sides of the abutting table 3. The support plates 61 are fixed on the box 2, and when the size of the shell 1 exceeds the first and second right-angled surfaces of the abutting table 3, the excess part is placed on the support plates 61. At the same time, the box 2 is also provided with a screw rod 64 corresponding to the support plates 61, and the screw rod 64 is provided with an abutting part 62. Figure 10 As shown, the abutting part 62 has a third right angle, which is used to abut, adjust and fix the end of the shell 1 away from the first alignment part 4. The abutting part 62 can be separated from the screw rod 64 and placed on another screw rod 64, which is locked by a cap 63. A clamping area is formed between the abutting part 62 and the support plate 61. The clamping area can be adjusted according to the size of the shell 1.

[0046] Therefore, as described above, compared with the prior art, the present application and its embodiments have the following advantages, including but not limited to: The present application sets the abutting table 3 with a first right angle as a welding reference platform, and cooperates with the first alignment part 4, the second alignment part 5 and the third alignment part 6 to realize precise positioning and stable clamping of the controller shell 1 in three-dimensional space. The structure design enables the side of the shell 1 to be accurately aligned at the first right angle, eliminating the need for spot welding pre-fixing steps in traditional processes, which not only greatly simplifies the welding process and improves production efficiency, but also effectively avoids the problem of thermal stress deformation caused by spot welding, thereby significantly improving the overall quality and consistency of the weld.

[0047] At the same time, the first alignment part 4 of the present application adopts a slidable alignment buckle 42 structure, which has a second right angle that is accurately aligned with the first right angle, and can provide the main positioning force during the alignment process. After positioning is completed, the alignment buckle 42 can be separated from the alignment plate 41, which facilitates the welding gun 7 to access the weld area for welding operation without obstacles, and takes into account the positioning accuracy and operational convenience.

[0048] Furthermore, the second alignment part 5 of the present application adopts a structure in which a gas cylinder 52 drives a rolling ball 55, which has a multi-degree-of-freedom adjustment capability. Through the composite rotation design of the inner spherical ring 551 and the outer hemispherical ring 552, the position can be fine-tuned when the rolling ball 55 contacts the shell 1, ensuring that the shell 1 is completely fitted with the abutting surface. After fine-tuning is completed, the rolling ball 55 is stably locked through a locking mechanism, further ensuring the structural stability during welding.

[0049] In addition, the third alignment part 6 of the present application cooperates with the adjustable abutting part 62 and the screw rod 64 to form a size-adjustable clamping area, which can adapt to the welding needs of different sizes of shell 1, enhancing the versatility and application scenarios of the equipment.

[0050] In summary, the application utilizes multiple alignment mechanisms to align the shell 1 on the abutting table 3 from three-dimensional directions, thereby avoiding the low efficiency and affecting the weld quality caused by the prior art of pre-welding fixation.

[0051] Obviously, various modifications and changes can be made to the present application without departing from the spirit and scope thereof. Accordingly, it is intended that all such modifications and changes be included within the scope of the application and equivalents thereof.

Claims

1. A controller housing welding device, characterized in that: include: An abutment platform (3) fixed on the box body (2), the abutment platform (3) having at least a first right-angled surface and a second right-angled surface for accommodating the shell (1), the first right-angled surface and the second right-angled surface being connected to form a first right angle; a first axe straightening portion (4) having a second right angle, wherein the first axe straightening portion (4) is slidably arranged on the abutment platform (3) and aligns the second right angle with the first right angle; A second axe-correcting portion (5), the second axe-correcting portion (5) comprising a rolling ball (55), the rolling ball (55) being driven by a cylinder (52) to abut against the housing (1) and being locked by a locking mechanism; a third axe-straightening portion (6), the third axe-straightening portion (6) comprising an abutting portion (62) having a third right angle, the abutting portion (62) abutting against an end of the housing (1) away from the first axe-straightening portion (4); The first axe-straightening portion (4), the second axe-straightening portion (5) and the third axe-straightening portion (6) abut and straighten the shell (1) in a three-dimensional direction, so that the side surface of the shell (1) is aligned with the first right angle.

2. A controller housing welding device according to claim 1, characterized in that: The abutment platform (3) is hollow inside, and a first screw rod (32) is rotatably connected therein. The first screw rod (32) is driven by a first motor (33) fixed in the box body (2). A notch (31) is also provided on a side of the abutment platform (3) away from the box body (2).

3. A controller housing welding device as claimed in claim 2, characterized in that: The first axe-correcting portion (4) comprises an axe-correcting buckle (42) having a second right angle, and an axe-correcting plate (41) is provided on both the first right-angle surface and the second right-angle surface. The two axe-correcting plates (41) are connected by a cover (43), and the axe-correcting buckle (42) is slidably provided on the axe-correcting plate (41).

4. A controller housing welding device as claimed in claim 3, characterized in that: A connecting plate (44) is fixed on the sealing cover (43), the connecting plate (44) passes through the notch (31), and a threaded plate (45) is fixed on the connecting plate (44), and the threaded plate (45) is threadedly connected to the first screw rod (32).

5. A controller housing welding device as claimed in claim 1, characterized in that: The cylinder (52) is fixed on a bracket (51), the bracket (51) is fixed on the box (2), a threaded cap (53) is fixed on the output shaft of the cylinder (52), the ball (55) is rotatably connected in the threaded cap (53), and a fixed cover (54) is also threadedly connected to the threaded cap (53).

6. A controller housing welding device as claimed in claim 5, characterized in that: The rolling ball (55) comprises an inner ball ring (551), an outer hemisphere (552) is rotatably provided on the outside of the inner ball ring (551), and the outer hemisphere (552) is arranged in the threaded cap (53) via a rotating shaft (553).

7. A controller housing welding device as claimed in claim 6, characterized in that: The inner ball ring (551) rotates along the axial direction of the rotating shaft (553), and the outer hemisphere (552) rotates along the radial direction of the rotating shaft (553).

8. A controller housing welding device as claimed in claim 1, characterized in that: The third axe straightening portion (6) includes a plurality of support plates (61) arranged in an array on both sides of the abutment platform (3), the support plates (61) are fixed on the box body (2), and a screw rod (64) which is also fixed on the box body (2) is provided on one side of the support plate (61), and the abutment portion (62) is sleeved outside the screw rod (64) and is locked by a cover cap (63).

9. A controller housing welding device as claimed in claim 1, characterized in that: It also includes a welding gun (7), which is driven by a driving mechanism so as to be displaced along the first right angle.

10. A controller housing welding device according to claim 9, characterized in that: The driving mechanism comprises a second screw seat (76) fixed on the box body (2), a third screw (74) driven to rotate by a third motor (75) being rotatably connected to the second screw seat (76), a first screw seat (73) being threadedly connected to the third screw (74), a second screw (71) driven by a second motor (72) being rotatably connected to the first screw seat (73), and the welding gun (7) being threadedly connected to the second screw (71).

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