Multi-station automatic spot welding machine
By using a design of a moving cover and a bufferable carrier seat in a multi-station automatic spot welding machine, the problems of inaccurate alignment and lack of protection caused by errors in the prior art are solved, and the accuracy of welding positions and effective protection of the device are achieved.
Patent Information
- Application Number
- CN202421235624.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-03
- Publication Date
- 2025-03-11
- Estimated Expiration
- 2034-06-03
AI Technical Summary
When the number of rotation rings of the workbench increases, errors will occur between the station and the working part, resulting in inaccurate alignment and lack of effective protective structures to prevent welding misalignment and device damage caused by excessive offset.
A multi-station automatic spot welding machine is designed, using a moving cover to cooperate with a bufferable carrier seat. Through the coupling of the conical structure of the moving cover to cooperate with the carrier seat, when the offset is excessive, the contact part of the welding part will first contact the carrier seat to avoid welding misalignment, and protect the device through the buffer structure of the spring and the pneumatic clamp.
It effectively avoids welding misalignment and device damage, improves the accuracy of welding position, and enhances the protection effect, ensuring operational obstacles and protection of the device when the offset is too large.
Smart Images
Figure CN222588366U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of spot welding machines, and more specifically to a multi-station automatic spot welding machine. Background Art
[0002] The multi-station spot welder is a common welding equipment, which can perform welding operations on multiple workpieces at the same time. It plays an important role in modern manufacturing industry with its high efficiency and stable performance. The working principle of the multi-station spot welder is that the multi-station spot welder transmits the current to the workpiece through the electrode through the control system, so that the contact point between the two workpiece surfaces generates high temperature to achieve the purpose of melting, and then cools and solidifies to achieve welding.
[0003] However, existing multi-station spot welding machines generally drive multiple stations to move intermittently through the rotation of a circular worktable, so that the stations sequentially pass through the loading, welding and unloading operation parts to realize the processing process. As the number of circles of the worktable increases, errors will occur between the stations and the operation parts, which will cause inaccurate positioning, and there is a lack of effective protection structure for the offset. Utility Model Content
[0004] In view of the problems existing in the prior art, the purpose of the utility model is to provide a multi-station automatic spot welding machine to solve the background technical problems.
[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:
[0006] A multi-station automatic spot welding machine includes a support, the top of the support is rotatably connected to a turntable, a reduction motor is fixedly installed on the support, the output end of the reduction motor is fixedly connected to the turntable through a coupling, a loading seat is equidistantly installed on the top of the turntable, an expansion frame is fixedly installed on the outside of the support, a loader, a welding part and a unloading part are sequentially installed on the expansion frame around the turntable, and the loader, welding part and unloading part correspond to the loading seat respectively.
[0007] As a further description of the above technical solution: the welding part includes a first cylinder, a movable cover, a micro cylinder and a welding gun head, the first cylinder is fixedly installed to the inside of the external expansion frame, the bottom of the movable end of the first cylinder is fixedly connected to the movable cover, the micro cylinder is fixedly installed to the inside of the movable cover, and the bottom end of the micro cylinder is fixedly connected to the welding gun head.
[0008] As a further description of the above technical solution: the front view cross section of the movable cover is conical and the bottom opening of the movable cover is larger than the top, and the bottom opening of the movable cover is larger than the outer diameter of the loading seat.
[0009] As a further description of the above technical solution: the loading seat includes a bottom block, a vertical rod, a movable seat, a spring and a pneumatic clamp, the bottom of the bottom block is fixedly connected to the top of the turntable, the bottom end of the vertical rod is fixedly connected to the bottom block, the top end of the vertical rod is inserted into the interior of the movable seat, the spring is sleeved on the outside of the vertical rod and the movable seat, the bottom end of the spring is fixedly connected to the movable seat, and the bottom end of the spring is fixedly connected to the bottom block.
[0010] As a further description of the above technical solution: the unloading part includes a horizontal cylinder, a second cylinder and a clamp, the horizontal cylinder is fixedly installed on the external expansion frame, the movable end of the horizontal cylinder is fixedly connected to the second cylinder, the outer side of the second cylinder is slidably connected to the external expansion frame, and the clamp is installed to the bottom end of the second cylinder.
[0011] As a further description of the above technical solution: a material receiving barrel is arranged between the outward expansion frame and the right side of the support.
[0012] Compared with the prior art, the advantages of the present invention are:
[0013] This solution uses a movable cover on the welding part in conjunction with a buffered loading seat, thereby achieving the advantage of better protection effect when the device is excessively offset and an operation obstruction will occur between the welding position of the device and the bottom station to avoid welding misalignment and damage to the device. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 It is a front view cross-sectional structural schematic diagram of the utility model;
[0015] Figure 2 for Figure 1 A schematic diagram of the enlarged structure of the middle part A;
[0016] Figure 3 It is a schematic diagram of the top view structure of the utility model;
[0017] Figure 4 It is a partial three-dimensional cross-sectional structural schematic diagram of the utility model.
[0018] Description of the numbers in the figure:
[0019] 1. Support; 2. Turntable; 3. Loading seat; 31. Bottom block; 32. Vertical rod; 33. Moving seat; 34. Spring; 35. Pneumatic clamp; 4. External expansion frame; 41. Receiving barrel; 5. Loader; 6. Welding part; 61. First cylinder; 62. Moving cover; 63. Micro cylinder; 64. Welding gun head; 7. Unloading part; 71. Horizontal cylinder; 72. Second cylinder; 73. Gripper; 8. Reducer motor. DETAILED DESCRIPTION
[0020] 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.
[0021] See also Figures 1 to 4 In the utility model, the multi-station automatic spot welding machine includes a support 1, the top of the support 1 is rotatably connected to a turntable 2, a reduction motor 8 is fixedly installed on the support 1, the output end of the reduction motor 8 is fixedly connected to the turntable 2 through a coupling, a loading seat 3 is equidistantly installed on the top of the turntable 2, an expansion frame 4 is fixedly installed on the outside of the support 1, and a feeder 5, a welding part 6 and a discharge part 7 are sequentially installed on the expansion frame 4 around the turntable 2, and the feeder 5, the welding part 6 and the discharge part 7 correspond to the loading seat 3 respectively.
[0022] In the present invention, the support 1 is used as a device support. When in use, the loader 5 transports the workpiece to the corresponding loading seat 3, and then starts the reduction motor 8 to rotate at a fixed angle to drive the loading seat 3 to move to the bottom of the welding part 6, and then starts the welding part 6 to spot weld the workpiece on the loading seat 3, and the bottom of the loader 5 also enters a new loading seat 3 at this time, and the loading seat 3 after welding is completed moves with the workpiece to the bottom of the unloading part 7, and then starts the unloading part 7 to take out the workpiece, and the empty loading seat 3 enters a cycle operation here. As the turntable 2 rotates, when the error value becomes larger, the welding part 6 descends to spot weld the workpiece on the loading seat 3. During line welding, if the deviation angle is too large, the contact part of the welding part 6 will first contact the carrier 3 to avoid welding misalignment, thereby realizing that when the device is excessively offset, there will be an operation obstacle between the welding position of the device and the bottom workstation to avoid welding misalignment and damage to the device, which has the advantage of better protection effect. It solves the problem that the prior art generally drives multiple workstations to move intermittently through the rotation of a circular worktable, so that the workstations pass through the loading, welding and unloading working parts in turn to realize the processing process. As the number of rotations of the worktable increases, errors will occur between the workstations and the working parts, which will cause inaccurate alignment and lack of effective protection structure for the offset.
[0023] See also Figure 1 and Figure 4 , wherein: the welding part 6 includes a first cylinder 61, a movable cover 62, a micro cylinder 63 and a welding gun head 64, the first cylinder 61 is fixedly installed to the inside of the external expansion frame 4, the bottom of the movable end of the first cylinder 61 is fixedly connected to the movable cover 62, the micro cylinder 63 is fixedly installed to the inside of the movable cover 62, and the bottom end of the micro cylinder 63 is fixedly connected to the welding gun head 64.
[0024] In the utility model, by starting the first cylinder 61 to drive the movable cover 62 to descend, the bottom opening of the movable cover 62 will preferentially contact the bottom loading seat 3. If the offset is too large, an obstruction will occur between the movable cover 62 and the loading seat 3, and the first cylinder 61 will stop, thereby avoiding welding misalignment and damage to the welding gun head 64, and the protective effect is good.
[0025] See also Figure 4 , wherein: the front view cross-section of the movable cover 62 is conical and the bottom opening of the movable cover 62 is larger than the top, and the bottom opening of the movable cover 62 is larger than the outer diameter of the loading seat 3.
[0026] In the present invention, the conical structure of the movable cover 62 is used to prevent the movable cover 62 from directly contacting the material carrier 3. When the offset is slight, the conical structure and the material carrier 3 are guided by each other to achieve a certain correction effect.
[0027] See also Figure 2 , wherein: the loading seat 3 includes a bottom block 31, a vertical rod 32, a movable seat 33, a spring 34 and a pneumatic clamp 35, the bottom of the bottom block 31 is fixedly connected to the top of the turntable 2, the bottom end of the vertical rod 32 is fixedly connected to the bottom block 31, the top end of the vertical rod 32 is inserted into the inside of the movable seat 33, the spring 34 is sleeved on the outside of the vertical rod 32 and the movable seat 33, the bottom end of the spring 34 is fixedly connected to the movable seat 33, and the bottom end of the spring 34 is fixedly connected to the bottom block 31.
[0028] In the utility model, the elastic support of the pneumatic clamp 35 is realized by the movable seat 33 and the spring 34 on the bottom block 31. When the movable cover 62 is misaligned and contacts the movable seat 33 to cause an obstruction, the spring 34 will be back-compressed to realize a buffer protection structure.
[0029] See also Figure 1 , wherein: the unloading part 7 includes a horizontal cylinder 71, a second cylinder 72 and a clamp 73, the horizontal cylinder 71 is fixedly installed on the external expansion frame 4, the movable end of the horizontal cylinder 71 is fixedly connected to the second cylinder 72, the outer side of the second cylinder 72 is slidably connected to the external expansion frame 4, and the clamp 73 is installed to the bottom end of the second cylinder 72.
[0030] In the present invention, the second cylinder 72 is started to drive the clamp 73 to take out the welded workpiece on the corresponding carrier 3, and the horizontal cylinder 71 is started to drive the second cylinder 72 to drive the clamp 73 to move horizontally to the outside of the turntable 2 to unload the workpiece.
[0031] See also Figure 1 , wherein: a material receiving barrel 41 is arranged between the outer expansion frame 4 and the right side of the support 1 .
[0032] In the utility model, the finished workpieces clamped by the clamping claws 73 are collected through the material receiving barrel 41, which is convenient to operate.
[0033] The above is only a preferred specific implementation of the utility model; however, the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solution and improved ideas of the utility model within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model.
Claims
1. A multi-station automatic spot welding machine, comprising a support (1), characterized in that: The top of the support (1) is rotatably connected to a turntable (2), a reduction motor (8) is fixedly mounted on the support (1), the output end of the reduction motor (8) is fixedly connected to the turntable (2) via a coupling, a loading seat (3) is equidistantly mounted on the top of the turntable (2), an external expansion frame (4) is fixedly mounted on the outside of the support (1), a loading machine (5), a welding part (6) and a unloading part (7) are sequentially mounted on the external expansion frame (4) around the turntable (2), and the loading machine (5), the welding part (6) and the unloading part (7) are respectively matched with the loading seat (3).
2. The multi-station automatic spot welding machine according to claim 1, characterized in that: The welding portion (6) comprises a first cylinder (61), a movable cover (62), a micro cylinder (63) and a welding gun head (64); the first cylinder (61) is fixedly mounted inside the external expansion frame (4); the bottom of the movable end of the first cylinder (61) is fixedly connected to the movable cover (62); the micro cylinder (63) is fixedly mounted inside the movable cover (62); and the bottom of the micro cylinder (63) is fixedly connected to the welding gun head (64).
3. The multi-station automatic spot welding machine according to claim 2, characterized in that: The front view cross section of the movable cover (62) is conical, and the bottom opening of the movable cover (62) is larger than the top, and the bottom opening of the movable cover (62) is larger than the outer diameter of the material loading seat (3).
4. The multi-station automatic spot welding machine according to claim 1, characterized in that: The material loading seat (3) comprises a bottom block (31), a vertical rod (32), a movable seat (33), a spring (34) and a pneumatic clamp (35); the bottom of the bottom block (31) is fixedly connected to the top of the turntable (2); the bottom end of the vertical rod (32) is fixedly connected to the bottom block (31); the top end of the vertical rod (32) is plugged into the inside of the movable seat (33); the spring (34) is sleeved on the outside of the vertical rod (32) and the movable seat (33); the bottom end of the spring (34) is fixedly connected to the movable seat (33); and the bottom end of the spring (34) is fixedly connected to the bottom block (31).
5. The multi-station automatic spot welding machine according to claim 1, characterized in that: The unloading portion (7) comprises a horizontal cylinder (71), a second cylinder (72) and a clamp (73); the horizontal cylinder (71) is fixedly mounted on the external expansion frame (4); the movable end of the horizontal cylinder (71) is fixedly connected to the second cylinder (72); the outer side of the second cylinder (72) is slidably connected to the external expansion frame (4); and the clamp (73) is mounted to the bottom end of the second cylinder (72).
6. The multi-station automatic spot welding machine according to claim 1, characterized in that: A material receiving barrel (41) is provided between the outer expansion frame (4) and the right side of the support (1).