Multi-point spot welding machine

Abstract

The invention provides a multi-point spot welding machine. The multi-point spot welding machine comprises a rack, a spot welding mechanism, a cooling pipeline and a cooling platform. According to the multi-point spot welding machine, the rack is arranged, the spot welding mechanism is arranged on the rack, and spot welding machining can be conducted on a square metal sheet on the cooling platform of the rack through the spot welding end; the cooling platform can drive a cooling medium in the cooling cylinder cavity to exchange with cooling media in the two cooling pipelines when the rotating part rotates through the cooling cylinder cavity and the rotating part located on the cooling cylinder cavity; cooling media can circulate in the cooling pipelines, the rotating part can drive the cooling media in the cooling barrel cavity and the cooling media in the two cooling pipelines to exchange while the cooling platform is rotated to conduct spot welding on the center positions of the four edges of the multiple layers of square metal sheets, the welding spot cooling speed can be increased, and adaptability and practicability are good.

Description

Technical Field

[0001] The invention belongs to the technical field of auxiliary welding, and in particular relates to a multi-point spot welding machine. Background Art

[0002] Welding is a processing technology. Welding is also called fusion. It is a manufacturing process and technology that joins metals or other thermoplastic materials such as plastics by heating, high temperature or high pressure. It is necessary to heat the welding part locally to a molten state, that is, to weld in a liquid form. Spot welding machine is a mechanical equipment used to weld metal plates or pipes. When spot welding, first pressurize the workpieces to make them in close contact. The contact part of the workpieces melts under the action of resistance heat. After the power is turned off, the pressure is maintained so that the molten core cools and solidifies under pressure to form a weld.

[0003] In the prior art, when welding multi-layer square metal sheets, the multi-layer square metal sheets are placed horizontally on a welding platform, and spot welding is performed on the center positions of the four sides of the multi-layer square metal sheets. Usually, a welding gun is arranged above the welding platform and can be moved in a vertical direction. Then, the center positions of the four sides of the multi-layer square metal sheets are spot welded by rotating the welding platform. However, since the welding platform is in a working state for a long time and the temperature is high, the welding point will cool down slowly, the strength and stability of the welding point will decrease, and the adaptability and practicality will be poor. Summary of the invention

[0004] The embodiment of the present invention provides a multi-point spot welding machine, which aims to solve the problem that the existing welding platform is in a high temperature state in a long-term working state and the welding points cool down slowly.

[0005] To achieve the above object, the technical solution adopted by the present invention is: to provide a multi-point spot welding machine, comprising: frame; A spot welding mechanism is arranged on the frame, and the spot welding mechanism has a spot welding end; There are two cooling pipelines, both of which are arranged on the rack, and each of the cooling pipelines flows with cooling medium; A cooling platform is located below the spot welding end, and the cooling platform has a cooling cylinder cavity with an open top and a rotating part located on the cooling cylinder cavity, the cooling cylinder cavity is connected to the two cooling pipelines, the rotating part extends into the cooling cylinder cavity, and the rotating part is used to drive the cooling medium in the cooling cylinder cavity and the cooling medium in the two cooling pipelines to exchange when rotating; a spot welding position corresponding to the spot welding end is provided at the top of the rotating part for placing multiple layers of square metal sheets.

[0006] In a possible implementation, a direction in which the spot welding end extends toward the outside of the frame is set as a first direction, and a direction that is horizontal and perpendicular to the first direction is set as a second direction; The multi-point spot welding machine also includes an adjustment mechanism, which is arranged on the frame and includes: A fixed frame, fixed on the frame; A telescopic structure, wherein a fixed end of the telescopic structure is fixedly mounted on the fixed frame, the telescopic end of the telescopic structure extends along the first direction, a connecting hole for mounting the cooling platform is provided on the telescopic end of the telescopic structure, and an axis of the connecting hole is arranged along the vertical direction; An auxiliary support plate is arranged on the fixing frame, and an auxiliary support hole is provided on the auxiliary support plate for the telescopic end of the telescopic structure to pass through.

[0007] In a possible implementation, the cooling platform includes: A connecting sleeve, inserted into the connecting hole and detachably connected to the connecting hole; A cooling cylinder is fixedly mounted on the top of the connecting sleeve, and the inner cavity of the cooling cylinder is the cooling cylinder cavity; A rotating impeller is rotatably arranged in the cooling cylinder cavity, the rotating axis of the rotating impeller is arranged colinearly with the axis of the cooling cylinder cavity, a plurality of blades are arranged on the rotating impeller, and the plurality of blades are arranged at annular intervals along the rotating axis of the rotating impeller, one end of each blade is connected to the rotating impeller, and the other end extends out along the radial direction of the cooling cylinder cavity to abut against the inner wall of the cooling cylinder cavity; A connecting cover plate is arranged at the top of the rotating impeller, and the connecting cover plate is arranged on the top of the cooling cylinder; The driving structure is arranged at the bottom end of the connecting sleeve and is dynamically connected to the rotating impeller and the connecting cover plate.

[0008] In a possible implementation, the cooling platform also includes a connecting piece, which is arranged on the top of the connecting cover plate and is detachably connected to the connecting cover plate. The top of the connecting piece is provided with a connecting groove with an open top, and the connecting groove is the spot welding position. The connecting piece, the connecting cover plate and the rotating impeller together constitute the rotating part.

[0009] In a possible implementation, each of the blades has an arcuate surface, and the arcuate surface is used to drive the cooling medium in the cooling cylinder cavity and the two cooling pipelines to exchange when the driving structure drives the rotating impeller to rotate.

[0010] In a possible implementation, the spot welding mechanism includes: There are two articulated blocks, the two articulated blocks are spaced apart along the second direction, and each articulated block is fixedly connected to the frame; An articulated cantilever, one end of the articulated cantilever is articulated with the two articulated blocks, the articulation axis is arranged with the second direction, and the other end of the articulated cantilever extends outward; A welding copper rod is arranged at the extended end of the articulated cantilever and is detachably connected to the extended end of the articulated cantilever. The welding copper rod and the spot welding position are arranged at intervals in the vertical direction. The welding copper rod is used to pitch and rotate with the articulated cantilever to spot weld the multi-layer square metal sheets in the spot welding position. The welding copper rod is the spot welding end. A driver is arranged on the frame and is used for driving the articulated cantilever to pitch and rotate.

[0011] In a possible implementation, the connecting piece is made of brass.

[0012] Compared with the prior art, in this implementation, a frame is provided, and a spot welding mechanism is provided on the frame, and the square metal sheets on the cooling platform of the frame can be spot welded through the spot welding end; the cooling platform can drive the cooling medium in the cooling cylinder cavity and the cooling medium in the two cooling pipelines to exchange when the rotating part rotates through the cooling cylinder cavity and the rotating part located on the cooling cylinder cavity; the cooling pipeline can flow the cooling medium, and while the center positions of the four sides of the multi-layer square metal sheets can be spot welded on the rotating cooling platform, the rotating part can drive the cooling medium in the cooling cylinder cavity and the cooling medium in the two cooling pipelines to exchange, which can accelerate the cooling speed of the weld, and has good adaptability and practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 A schematic diagram of the structure of a multi-point spot welding machine provided by an embodiment of the present invention; Figure 2 for Figure 1 The enlarged structural diagram of the structural diagram A of the multi-point spot welding machine provided; Figure 3 A schematic diagram of the main structure of a cooling platform for a multi-point spot welding machine provided in an embodiment of the present invention; Figure 4 for Figure 3 The main structural diagram of the multi-point spot welding machine cooling platform is a cross-sectional structural diagram at AA; Figure 5 A structural schematic diagram of a specific implementation of a multi-point spot welding machine driving structure provided by an embodiment of the present invention; Description of reference numerals: 10. Frame; 20. Spot welding mechanism; 21. Articulated block; 22. Articulated cantilever; 23. Welded copper rod; 30. Cooling pipeline; 40. Cooling platform; 41. Connecting sleeve; 42. Cooling cylinder; 43. Rotating impeller; 431. Blade; 44. Connecting cover plate; 45. Driving structure; 451. Driving connecting frame; 452. Driving motor; 4521. Driving shaft; 453. Auxiliary sleeve; 454. First driving gear; 455. Connecting gear shaft; 456. First driven gear; 457. Second driving gear; 458. Second driven gear; 46. Connecting piece; 50. Adjusting mechanism; 51. Fixing frame; 52. Telescopic structure; 53. Auxiliary support plate. DETAILED DESCRIPTION

[0014] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0015] Please also read Figures 1 to 5 , the multi-point spot welding machine provided by the present invention is now described. The multi-point spot welding machine includes a frame 10, a spot welding mechanism 20, a cooling pipeline 30, and a cooling platform 40. Frame 10. The spot welding mechanism 20 is arranged on the frame 10, and the spot welding mechanism 20 has a spot welding end. There are two cooling pipelines 30, and the two cooling pipelines 30 are both arranged on the frame 10, and each cooling pipeline 30 flows a cooling medium. The cooling platform 40 is located below the spot welding end, and the cooling platform 40 has a cooling cylinder cavity with an open top and a rotating part located on the cooling cylinder cavity. The cooling cylinder cavity is connected to the two cooling pipelines 30, and the rotating part extends into the cooling cylinder cavity. The rotating part is used to drive the cooling medium in the cooling cylinder cavity and the cooling medium in the two cooling pipelines 30 to exchange when rotating. A spot welding position corresponding to the spot welding end is provided at the top of the rotating part for placing multiple layers of square metal sheets.

[0016] Compared with the prior art, the multi-point spot welding machine provided in this embodiment is provided with a frame 10, and a spot welding mechanism 20 is provided on the frame 10, and the square metal sheet on the cooling platform 40 of the frame 10 can be spot welded through the spot welding end. The cooling platform 40 can drive the cooling medium in the cooling cylinder cavity and the cooling medium in the two cooling pipelines 30 to exchange when the rotating part rotates through the cooling cylinder cavity and the rotating part located on the cooling cylinder cavity. The cooling pipeline 30 can circulate the cooling medium, and the rotating part can drive the cooling medium in the cooling cylinder cavity and the cooling medium in the two cooling pipelines 30 to exchange while the center position of the four sides of the multi-layer square metal sheet is spot welded by the rotating cooling platform 40, so that the cooling speed of the welding spot can be accelerated, and the adaptability and practicality are good.

[0017] In some embodiments, the multi-point spot welding machine can be used as follows Figure 1 , Figure 2 See the structure shown. Figure 1 , Figure 2 , set the direction in which the spot welding end extends toward the outside of the frame 10 as the first direction, and the direction horizontal and perpendicular to the first direction as the second direction.

[0018] The multi-point spot welding machine also includes an adjustment mechanism 50, which is arranged on the frame 10. The adjustment mechanism 50 includes: a fixed frame 51, a telescopic structure 52 and an auxiliary support plate 53. The fixed frame 51 is fixed on the frame 10. The telescopic structure 52 has a fixed end fixed on the fixed frame 51, and the telescopic end of the telescopic structure 52 extends along a first direction. The telescopic end of the telescopic structure 52 is provided with a connecting hole for installing the cooling platform 40, and the axis of the connecting hole is arranged in the vertical direction. The auxiliary support plate 53 is arranged on the fixed frame 51, and the auxiliary support plate 53 is provided with an auxiliary support hole for the telescopic end of the telescopic structure 52 to pass through.

[0019] The cooling pipeline 30 can be a flexible connecting pipeline that can adapt to the adjustment of the telescopic structure 52. The telescopic structure 52 can be connected to the cooling platform 40 through the connecting hole on the telescopic end. The auxiliary support plate 53 can be passed through the auxiliary support hole for the telescopic end of the telescopic structure 52 to support the cooling platform 40.

[0020] In some embodiments, the cooling platform 40 may be implemented as follows: Figures 1 to 5 See the structure shown. Figures 1 to 5 The cooling platform 40 includes: a connecting sleeve 41, a cooling cylinder 42, a rotating impeller 43, a connecting cover plate 44 and a driving structure 45. The connecting sleeve 41 is inserted into the connecting hole and is detachably connected to the connecting hole. The cooling cylinder 42 is fixed at the top of the connecting sleeve 41, and the inner cavity of the cooling cylinder 42 is the cooling cylinder cavity. The rotating impeller 43 is rotatably arranged in the cooling cylinder cavity, and the rotating axis of the rotating impeller 43 is colinearly arranged with the axis of the cooling cylinder cavity. The rotating impeller 43 is provided with a plurality of blades 431, and the plurality of blades 431 are arranged at annular intervals along the rotating axis of the rotating impeller 43. One end of each blade 431 is connected to the rotating impeller 43, and the other end extends out along the radial direction of the cooling cylinder cavity and abuts against the inner wall of the cooling cylinder cavity. The connecting cover plate 44 is arranged at the top of the rotating impeller 43, and the connecting cover plate 44 is covered at the top of the cooling cylinder 42. The driving structure 45 is disposed at the bottom end of the connecting sleeve 41 and is dynamically connected to the rotating impeller 43 and the connecting cover plate 44 .

[0021] The connecting sleeve 41 can be detachably connected to the connecting hole. The cooling cylinder 42 can be fixedly arranged at the top of the connecting sleeve 41, and the bottom of the cooling cylinder 42 is connected to the cylinder cavity of the connecting sleeve 41. The rotating impeller 43 can be rotatably arranged in the cooling cylinder cavity and is dynamically connected to the driving structure 45. The connecting cover plate 44 can be covered at the top of the cooling cylinder 42 and is dynamically connected to the driving structure 45.

[0022] As a specific implementation of this embodiment, the driving structure 45 includes: The driving connection frame 451 is fixed on the telescopic end of the telescopic structure 52 .

[0023] The driving motor 452 is fixed on the driving connecting frame 451 and has a driving shaft 4521 arranged along the vertical direction. The driving shaft 4521 passes through the cylinder cavity and the cooling cylinder cavity of the connecting sleeve 41 and is connected to the connecting cover plate 44. The driving shaft 4521 is used to drive the connecting cover plate 44 to rotate.

[0024] The auxiliary sleeve 453 is sleeved on the driving shaft 4521 and is located in the barrel cavity of the connecting sleeve 41 . The top end of the auxiliary sleeve 453 is connected to the rotating impeller 43 .

[0025] The first driving gear 454 is fixed on the driving shaft 4521 and rotates synchronously with the driving shaft 4521 .

[0026] The connecting gear shaft 455 is fixed on the driving connecting frame 451 , and the axis of the connecting gear shaft 455 is parallel to the axis of the driving shaft 4521 and is spaced apart from each other.

[0027] The first driven gear 456 is fixed on the connecting gear shaft 455 . The first driven gear 456 is meshed with the first driving gear 454 . The transmission ratio between the first driven gear 456 and the first driving gear 454 is 1 / 4.

[0028] The second driving gear 457 is fixed on the connecting gear shaft 455 and rotates along with the connecting gear shaft 455 .

[0029] The second driven gear 458 is fixed to the bottom end of the auxiliary sleeve 453 . The second driven gear 458 is meshed with the second driving gear 457 . The transmission ratio between the second driven gear 458 and the second driving gear 457 is 1:1.

[0030] Among them, when the driving motor 452 drives the first driving gear 454 on the driving shaft 4521 to rotate one circle, the first driven gear 456 rotates four circles, and at the same time the second driving gear 457 rotates four circles, and the second driving gear 457 drives the second driven gear 458 to rotate four circles, so that the connecting cover plate 44 rotates one circle, the rotating impeller 43 rotates four circles, and the connecting cover plate 44 rotates 90° for spot welding, and the rotating impeller 43 rotates 360° to discharge the cooling medium in the cooling cylinder cavity.

[0031] In some embodiments, the cooling platform 40 may be implemented as follows: Figures 1 to 3 See the structure shown. Figures 1 to 3 The cooling platform 40 also includes a connecting piece 46, which is arranged on the top of the connecting cover plate 44 and is detachably connected to the connecting cover plate 44. The top of the connecting piece 46 is provided with a connecting groove with an open top, and the connecting groove is a spot welding position. The connecting piece 46, the connecting cover plate 44 and the rotating impeller 43 together constitute a rotating part.

[0032] The connecting piece 46 can be detachably connected to the connecting cover plate 44 .

[0033] In some embodiments, the blade 431 may be formed as follows: Figure 4 See the structure shown. Figure 4 Each blade 431 has an arcuate surface, and the arcuate surface is used to drive the cooling medium in the cooling cylinder cavity and the two cooling pipelines 30 to exchange when the driving structure 45 drives the rotating impeller 43 to rotate.

[0034] The arc surface can drive the cooling medium in the cooling cylinder cavity and the two cooling pipelines 30 to exchange when the driving structure 45 drives the rotating impeller 43 to rotate.

[0035] In some embodiments, the spot welding mechanism 20 may be used as follows: Figure 1 , Figure 2 See the structure shown. Figure 1 , Figure 2 The spot welding mechanism 20 includes: an articulated block 21, an articulated cantilever 22, a welding copper rod 23 and a driver. Two articulated blocks 21 are provided, and the two articulated blocks 21 are arranged at intervals along the second direction, and each articulated block 21 is fixedly connected to the frame 10. Articulated cantilever 22 One end of the articulated cantilever 22 is articulated with the two articulated blocks 21, and the articulated axis is arranged in the second direction, and the other end of the articulated cantilever 22 extends outward. The welding copper rod 23 is arranged at the extended end of the articulated cantilever 22 and is detachably connected to the extended end of the articulated cantilever 22. The welding copper rod 23 is arranged at intervals along the vertical direction with the spot welding position. The welding copper rod 23 is used to pitch and rotate with the articulated cantilever 22 to spot weld the multi-layer square metal sheets in the spot welding position, and the welding copper rod 23 is the spot welding end. The driver is arranged on the frame 10, and is used to drive the articulated cantilever 22 to pitch and rotate.

[0036] The welding copper rod 23 can be pitched and rotated along with the articulated cantilever 22 to spot weld the multi-layer square metal sheets in the spot welding position. The driver can drive the articulated cantilever 22 to pitch and rotate.

[0037] In some embodiments, the connecting piece 46 may be formed as follows: Figure 1 , Figure 2 See the structure shown. Figure 1 , Figure 2 , the connecting piece 46 is made of brass.

[0038] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. Multi-point spot welding machine, characterized in that, include: frame; A spot welding mechanism is arranged on the frame, and the spot welding mechanism has a spot welding end; There are two cooling pipelines, both of which are arranged on the rack, and each of the cooling pipelines flows with cooling medium; A cooling platform is located below the spot welding end, and the cooling platform has a cooling cylinder cavity with an open top and a rotating part located on the cooling cylinder cavity, the cooling cylinder cavity is connected to the two cooling pipelines, the rotating part extends into the cooling cylinder cavity, and the rotating part is used to drive the cooling medium in the cooling cylinder cavity and the cooling medium in the two cooling pipelines to exchange when rotating; a spot welding position corresponding to the spot welding end is provided at the top of the rotating part for placing multiple layers of square metal sheets.

2. The multi-point spot welding machine according to claim 1, characterized in that: The direction in which the spot welding end extends toward the outside of the frame is set as a first direction, and the direction horizontal and perpendicular to the first direction is set as a second direction; The multi-point spot welding machine also includes an adjustment mechanism, which is arranged on the frame and includes: A fixed frame, fixed on the frame; A telescopic structure, wherein a fixed end of the telescopic structure is fixedly mounted on the fixed frame, the telescopic end of the telescopic structure extends along the first direction, a connecting hole for mounting the cooling platform is provided on the telescopic end of the telescopic structure, and an axis of the connecting hole is arranged along the vertical direction; An auxiliary support plate is arranged on the fixing frame, and an auxiliary support hole is provided on the auxiliary support plate for the telescopic end of the telescopic structure to pass through.

3. The multi-point spot welding machine according to claim 2, characterized in that: The cooling platform comprises: A connecting sleeve, inserted into the connecting hole and detachably connected to the connecting hole; A cooling cylinder is fixedly mounted on the top of the connecting sleeve, and the inner cavity of the cooling cylinder is the cooling cylinder cavity; A rotating impeller is rotatably arranged in the cooling cylinder cavity, the rotating axis of the rotating impeller is arranged colinearly with the axis of the cooling cylinder cavity, a plurality of blades are arranged on the rotating impeller, and the plurality of blades are arranged at annular intervals along the rotating axis of the rotating impeller, one end of each blade is connected to the rotating impeller, and the other end extends out along the radial direction of the cooling cylinder cavity to abut against the inner wall of the cooling cylinder cavity; A connecting cover plate is arranged at the top of the rotating impeller, and the connecting cover plate is arranged on the top of the cooling cylinder; The driving structure is arranged at the bottom end of the connecting sleeve and is dynamically connected to the rotating impeller and the connecting cover plate.

4. The multi-point spot welding machine according to claim 3, characterized in that: The cooling platform also includes a connecting piece, which is arranged on the top of the connecting cover plate and is detachably connected to the connecting cover plate. The top of the connecting piece is provided with a connecting groove with an open top, and the connecting groove is the spot welding position. The connecting piece, the connecting cover plate and the rotating impeller together constitute the rotating part.

5. The multi-point spot welding machine according to claim 3, characterized in that: Each of the blades has an arcuate surface, and the arcuate surface is used to drive the cooling medium in the cooling cylinder cavity and the two cooling pipelines to exchange when the driving structure drives the rotating impeller to rotate.

6. The multi-spot welding machine according to claim 2, characterized in that: The spot welding mechanism comprises: There are two articulated blocks, the two articulated blocks are spaced apart along the second direction, and each articulated block is fixedly connected to the frame; An articulated cantilever, one end of which is articulated with the two articulated blocks, a hinge axis is arranged with the second direction, and the other end of the articulated cantilever extends outward; A welding copper rod is arranged at the extended end of the hinged cantilever and is detachably connected to the extended end of the hinged cantilever. The welding copper rod and the spot welding position are arranged at intervals in the vertical direction. The welding copper rod is used to pitch and rotate with the hinged cantilever to spot weld the multi-layer square metal sheets in the spot welding position. The welding copper rod is the spot welding end. A driver is arranged on the frame and is used for driving the articulated cantilever to pitch and rotate.

7. The multi-point spot welding machine according to claim 4, characterized in that: The connecting piece is made of brass.

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