Welding fixing structure
Through the combination of lifting, buffering and fixing mechanisms, the automatic welding of the car back plate and the tail curtain is achieved, solving the problems of low efficiency and large errors in traditional manual welding, and improving welding accuracy and appearance quality.
Patent Information
- Application Number
- CN202422328792.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-24
- Publication Date
- 2025-07-29
- Estimated Expiration
- 2034-09-24
AI Technical Summary
Traditional manual welding of the car back plate and tail curtain is inefficient and has large errors, which affects the welding effect and appearance.
The lifting mechanism, buffering guide mechanism and auxiliary fixing mechanism are adopted to achieve accurate movement and buffering of the welding head, and automated welding is carried out in conjunction with the translation mechanism to reduce errors.
It improves welding accuracy and appearance quality, prevents deformation and slippage of welding parts, and enhances the welding effect.
Smart Images
Figure CN223160364U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of welding and fixing of automobile back plates and tail curtains, and particularly relates to a welding and fixing structure. Background Technique
[0002] The automobile seat back plate is an important element in modern automobile design. It not only has functionality but also involves styling design. The design and material selection of the seat back plate, especially the plastic shell behind the front seats, are aimed at meeting multiple purposes. First of all, the existence of the seat back plate is mainly for functional and styling needs. Initially, the seat back plate was used to store items such as maps. Subsequently, with the upgrade of functions, it gradually evolved into having more functions, such as being able to be used as an iPad stand, a small table, or even a handhold for getting off the car. More luxurious seat back plates will also add functions such as TVs and wood grain decorations to increase the functionality and styling level of the seat back.
[0003] During the production process of automobile back plates, it is necessary to weld the tail curtain on the automobile back plate. However, in the traditional welding of automobile back plates and tail curtains, manual welding is used, which has low efficiency. And due to factors such as large manual operation errors, it affects the welding effect of the back plate and the tail curtain and their appearance. Therefore, there is an urgent need for a welding and fixing structure to solve the above problems. Content of the Utility Model
[0004] Aiming at the problems raised in the above background technique, the purpose of the utility model is to provide a welding and fixing structure.
[0005] To achieve the above technical purpose, the technical scheme adopted by the utility model is as follows:
[0006] A welding and fixing structure includes a bottom plate. On one side of the top of the bottom plate, a support frame arranged in a gate-shaped structure is installed. On the top of the support frame, a lifting mechanism is installed. The power output end of the lifting mechanism is connected to a mounting plate. A plurality of uniformly arranged welding heads are installed at the bottom of the mounting plate. Buffer guiding mechanisms are also installed at the four corners of the bottom of the mounting plate. A translation mechanism is installed on the top of the bottom plate. The power output end of the translation mechanism is connected to an assembly plate. A welding assembly frame is installed on the top of the assembly plate. Auxiliary fixing mechanisms are installed on both sides of the assembly plate.
[0007] Further defined, the lifting mechanism includes a motor base, on which a first motor is installed. The power output end of the first motor is connected to a main gear, which meshes with a secondary gear. The bottom of the secondary gear is installed with a threaded sleeve, and the outer bottom of the threaded sleeve is connected to a bearing seat, which is installed on the support frame. The threaded sleeve is connected to a threaded rod, and the upper and lower sides of the threaded rod penetrate through the secondary gear and the support frame. The lower side of the threaded rod is connected to a lifting plate, and the mounting plate is installed at the bottom of the lifting plate. A limiting block is rotatably installed in the lifting plate, and the limiting block is installed at the bottom of the threaded rod. Four sides of the top of the lifting plate are also installed with guide rods, and the guide rods are slidably connected to guide sleeves, which are installed on the support frame. Such a structural design facilitates driving the welding head to move and facilitates subsequent welding work.
[0008] Further defined, the buffer guiding mechanism includes a buffer rod, which is slidably connected to a buffer ring. A buffer spring is installed on the upper side of the buffer ring, and the free end of the buffer spring is installed at the bottom of the mounting plate. Such a structural design buffers before the welding head performs welding to prevent the welding head from being damaged due to excessive downward force.
[0009] Further defined, the translation mechanism includes limiting plates installed on the front and rear sides of the bottom plate. Bearings are installed on the limiting plates, and a lead screw is installed between the bearings on the front and rear sides. Among them, a second motor is also installed on the rear limiting plate, and the power output end of the second motor is connected to the lead screw. The lead screw is connected to a nut moving seat, which is fixedly installed at the bottom of the assembly plate. Two groups of guide rails are also installed between the limiting plates on the front and rear sides, and the two groups of guide rails are arranged on both sides of the lead screw. A sliding seat is slidably installed on the top of the guide rail, and the sliding seat is installed at the bottom of the assembly plate. Such a structural design facilitates clamping the back plate and the tail curtain on the outside and transporting them to the lower side of the welding head after clamping, waiting for the welding work.
[0010] Further defined, the auxiliary fixing mechanism includes a fixing seat, on the front and rear sides of which there are guide holes matching the buffer rods. Threaded holes are also provided on the front and rear sides of the fixing seat, and the threaded holes are connected to screw rods. A hexagonal turning block is installed on the outer side of the screw rod, and a rotating shaft seat is connected to the inner side of the screw rod. An extrusion plate is installed on the outer side of the rotating shaft seat, and a buffer pad is installed on the outer side of the extrusion plate. Such a structural design has the effect of limiting, clamping and fixing the back plate and the tail curtain, improving the subsequent welding effect.
[0011] The beneficial effects of the present utility model are as follows: By eliminating manual welding, the present utility model adopts a lifting mechanism, so that when components such as the mounting plate and the welding head move up and down, the vertical deviation is relatively small. In cooperation with the buffer guiding mechanism, a high positioning accuracy can still be maintained during multiple welding and fixing operations, and the impact force during the downward pressing process can be buffered to prevent excessive deformation and damage of the welding part caused by excessive downward pressing. The auxiliary fixing mechanism can fix the back plate and the tail curtain on the welding assembly rack, prevent slipping or dislocation during welding and fixing, reduce the generation of errors, improve the welding effect of the back plate and the tail curtain, and make the appearance more beautiful after welding and fixing. Brief Description of the Drawings
[0012] The present utility model can be further illustrated by the non-limiting embodiments given in the drawings;
[0013] Figure 1 It is an axonometric structural schematic diagram of a welding and fixing structure according to an embodiment of the present utility model;
[0014] Figure 2 It is a vertical sectional structural schematic diagram of a welding and fixing structure according to an embodiment of the present utility model;
[0015] Figure 3 It is a sectional structural schematic diagram of a buffer guiding mechanism of a welding and fixing structure according to an embodiment of the present utility model;
[0016] Figure 4 It is a transverse sectional structural schematic diagram of an auxiliary fixing mechanism of a welding and fixing structure according to an embodiment of the present utility model;
[0017] The main element symbols are explained as follows:
[0018] Base plate 1, support frame 2, lifting mechanism 3, mounting plate 4, welding head 5, buffer guiding mechanism 6, translation mechanism 7, assembly plate 8, welding assembly rack 9, auxiliary fixing mechanism 10, motor seat 11, first motor 12, main gear 13, sub-gear 14, threaded sleeve 15, bearing seat 16, threaded rod 17, lifting plate 18, limit block 19, guide rod 20, guide sleeve 21, buffer rod 22, buffer ring 23, buffer spring 24, limit plate 25, bearing 26, lead screw 27, second motor 28, nut moving seat 29, guide rail 30, sliding seat 31, fixed seat 32, guide hole 33, threaded hole 34, screw rod 35, hexagonal torsion block 36, rotating shaft seat 37, pressing plate 38, buffer pad 39. Specific Embodiments
[0019] In order to enable those skilled in the art to better understand the present utility model, the technical solutions of the present utility model will be further described below in conjunction with the drawings and embodiments.
[0020] Embodiment 1, as shown in Figure 1 and Figure 2As shown in the figure, a welding and fixing structure is provided. On one side of the top of the bottom plate 1, a support frame 2 arranged in a gate-shaped structure is installed. On the top of the support frame 2, a lifting mechanism 3 is installed. The power output end of the lifting mechanism 3 is connected to a mounting plate 4. At the bottom of the mounting plate 4, a number of uniformly arranged welding heads 5 are installed. At the four corners of the bottom of the mounting plate 4, a buffer and guiding mechanism 6 is also installed. On the top of the bottom plate 1, a translation mechanism 7 is installed. The power output end of the translation mechanism 7 is connected to an assembly plate 8. On the top of the assembly plate 8, a welding assembly frame 9 is installed. On both sides of the assembly plate 8, an auxiliary fixing mechanism 10 is installed.
[0021] In this embodiment, before processing, the assembled back panel and tail curtain are first placed on the welding assembly frame 9, and the back panel and tail curtain are clamped and limited by the auxiliary fixing mechanism 10. Then, the translation mechanism 7 is controlled to start, so that the translation mechanism 7 drives the assembly plate 8, and the assembly plate 8 drives the welding assembly frame 9, the auxiliary fixing mechanism 10, and the back panel and tail curtain after clamping and limiting to move from the outside to the lower side of the welding head 5. Then, the lifting mechanism 3 is controlled to start, so that the lifting mechanism 3 drives the mounting plate 4, and the mounting plate 4 drives the welding head 5 and the buffer and guiding mechanism 6 to move downward. Before the welding head 5 contacts the connection part of the back panel and the tail curtain, the buffer and guiding mechanism 6 first cooperates with the auxiliary fixing mechanism 10 to buffer, preventing the downward force of the mounting plate 4 driven by the lifting mechanism 3 from being too large, resulting in a collision between the welding head 5 and the back panel and the tail curtain, so that the welding head 5 can slowly contact the connection part of the back panel and the tail curtain. Then, the welding head 5 performs welding work on the connection part of the back panel and the tail curtain. After welding is completed, the lifting mechanism 3 drives the mounting plate 4, and the mounting plate 4 drives the welding head 5 and the buffer and guiding mechanism 6 to reset. At the same time, the translation mechanism 7 drives the assembly plate 8, and the assembly plate 8 drives the welding assembly frame 9, the auxiliary fixing mechanism 10, and the back panel and tail curtain after welding and fixing to move from the bottom of the support frame 2 to the outside. The fixing of the auxiliary fixing mechanism 10 is released, and the finished product is taken out. Then, the semi-finished product is put into the welding assembly frame 9 again for welding and fixing processing.
[0022] Example 2, as Figure 2As shown in the figure, the following structure is added to this embodiment on the basis of Embodiment 1. The lifting mechanism 3 includes a motor base 11. A first motor 12 is installed on the motor base 11. The power output end of the first motor 12 is connected to a main gear 13. The main gear 13 is meshed and connected to a sub-gear 14. A threaded sleeve 15 is installed at the bottom of the sub-gear 14. The outer bottom of the threaded sleeve 15 is connected to a bearing seat 16. The bearing seat 16 is installed on the support frame 2. The threaded sleeve 15 is connected to a threaded rod 17. The upper and lower sides of the threaded rod 17 penetrate through the sub-gear 14 and the support frame 2. The lower side of the threaded rod 17 is connected to a lifting plate 18. The mounting plate 4 is installed at the bottom of the lifting plate 18. A limiting block 19 is rotatably installed in the lifting plate 18. The limiting block 19 is installed at the bottom of the threaded rod 17. Guide rods 20 are also installed on the four sides of the top of the lifting plate 18. The guide rods 20 are slidably connected to guide sleeves 21. The guide sleeves 21 are installed on the support frame 2.
[0023] In this embodiment, during operation, the first motor 12 is started to rotate forward or backward, so that the first motor 12 drives the main gear 13 to rotate. The main gear 13 drives the engaged sub-gear 14 to rotate. The sub-gear 14 then drives the threaded sleeve 15 to rotate within the bearing seat 16. The rotation of the threaded sleeve 15 causes the connected threaded rod 17 to generate a rotational movement and move upward or downward along the thread, causing the threaded rod 17 to drive the limiting block 19 to rotate within the lifting plate 18. When moving downward, the limiting block 19 will push the mounting plate 4. The mounting plate 4 drives the lifting plate 18. The lifting plate 18 drives the guide rods 20 on the four sides to move along the guide of the guide sleeves 21. When moving upward, the limiting block 19 will lift the lifting plate 18, causing the lifting plate 18 to drive the mounting plate 4 and push the guide rods 20 on the four sides to move along the guide of the guide sleeves 21, ensuring the effect of stable vertical movement and facilitating subsequent welding and fixing work.
[0024] Embodiment 3, as Figure 3 As shown in the figure, the following structure is added to this embodiment on the basis of Embodiment 1. The buffer guiding mechanism 6 includes a buffer rod 22. The buffer rod 22 is slidably connected to a buffer ring 23. A buffer spring 24 is installed on the upper side of the buffer ring 23. The free end of the buffer spring 24 is installed at the bottom of the mounting plate 4.
[0025] In this embodiment, when the mounting plate 4 drives the welding head 5 and the buffer guiding mechanism 6 to move downward, before the welding head 5 contacts the connection between the back plate and the tail curtain, the buffer guiding mechanism 6 first cooperates with the auxiliary fixing mechanism 10 to insert the buffer rod 22 into the auxiliary fixing mechanism 10 for final positioning and guiding. Then, the buffer ring 23 contacts the top surface of the auxiliary fixing mechanism 10. Finally, the mounting plate 4 pushes the buffer rod 22 to continue moving downward and squeezes the buffer spring 24, causing the buffer spring 24 to buffer, thereby preventing the welding head 5 from quickly contacting the back plate and the tail curtain and being damaged. And through the guiding of the buffer rod 22, the welding and fixing effect is further improved, preventing the occurrence of incorrect welding positions and incomplete welding.
[0026] Embodiment 4, as Figure 2 and Figure 4 shown, on the basis of Embodiment 1, this embodiment adds the following structure. The translation mechanism 7 includes limit plates 25 installed on the front and rear sides of the bottom plate 1. Bearings 26 are installed on the limit plates 25. A lead screw 27 is installed between the front and rear bearings 26. Among them, the rear limit plate 25 also installs a second motor 28. The power output end of the second motor 28 is connected to the lead screw 27. The lead screw 27 is connected with a nut moving seat 29. The nut moving seat 29 is fixedly installed at the bottom of the assembly plate 8. Two groups of guide rails 30 are also installed between the front and rear limit plates 25. The two groups of guide rails 30 are arranged on both sides of the lead screw 27. A sliding seat 31 is slidably installed on the top of the guide rail 30. The sliding seat 31 is installed at the bottom of the assembly plate 8.
[0027] In this embodiment, during operation, the second motor 28 is started. The second motor 28 drives the lead screw 27 to rotate in the bearing 26. The rotating lead screw 27 drives the nut moving seat 29. The nut moving seat 29 drives the assembly plate 8. The assembly plate 8 drives the sliding seats 31 on both sides of the bottom to slide along the guide rail 30, thereby ensuring the smooth movement of the assembly plate 8 for facilitating the welding work during conveying.
[0028] Embodiment 5, as Figure 4 shown, on the basis of Embodiment 1, this embodiment adds the following structure. The auxiliary fixing mechanism 10 includes a fixed seat 32. Guide holes 33 matching the buffer rod 22 are provided on the front and rear sides of the fixed seat 32. Threaded holes 34 are also provided on the front and rear sides of the fixed seat 32. The threaded holes 34 are connected with screw rods 35. A hexagonal turning block 36 is installed on the outer side of the screw rod 35. The inner side of the screw rod 35 is connected with a rotating shaft seat 37. An extrusion plate 38 is installed on the outer side of the rotating shaft seat 37. A buffer pad 39 is installed on the outer side of the extrusion plate 38. Such a structural design has a limiting and clamping and fixing effect on the back plate and the tail curtain, improving the subsequent welding effect.
[0029] In this embodiment, after the assembled back panel and tail curtain are placed on the welding and assembly rack 9, first rotate the hexagonal turning block 36 at the rear side, so that the hexagonal turning block 36 at the rear side drives the screw 35 to rotate and move inward along the threaded hole 34 on the fixed seat 32. At the same time, the inner side of the screw 35 rotates in the rotating shaft seat 37 and pushes the pressing plate 38. The pressing plate 38 pushes the buffer pad 39 to clamp and fix the back panel. Then rotate the hexagonal turning block 36 at the front side, so that the hexagonal turning block 36 at the front side drives the screw 35 to rotate and move inward along the threaded hole 34 on the fixed seat 32. At the same time, the inner side of the screw 35 rotates in the rotating shaft seat 37 and pushes the pressing plate 38. The pressing plate 38 pushes the buffer pad 39 to play an auxiliary limiting effect on the tail curtain. Finally, the welding and fixing work is carried out through the conveying of the translation mechanism 7. When welding and fixing, the buffer rod 22 will first be inserted into the guiding hole 33 for limiting and guiding. Then the buffer ring 23 contacts the top of the fixed seat 32 for subsequent buffering work.
[0030] Among them, when clamping the tail curtain, only a small clamping force needs to be applied to both sides of the tail curtain by the buffer pad 39 to prevent the tail curtain from falling.
[0031] The above embodiments only exemplarily illustrate the principles and effects of the present invention, rather than limiting the present invention. Any person familiar with this technology can modify or change the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or changes completed by those with ordinary knowledge in the technical field without departing from the spirit and technical ideas disclosed by the present invention should still be covered by the claims of the present invention.
Claims
1. A welding and fixing structure, characterized in that: It includes a bottom plate (1). On one side of the top of the bottom plate (1), a support frame (2) arranged in a door-shaped structure is installed. On the top of the support frame (2), a lifting mechanism (3) is installed. The power output end of the lifting mechanism (3) is connected to a mounting plate (4). On the bottom of the mounting plate (4), a number of uniformly arranged welding heads (5) are installed. At the four corners of the bottom of the mounting plate (4), a buffer guiding mechanism (6) is also installed. On the top of the bottom plate (1), a translation mechanism (7) is installed. The power output end of the translation mechanism (7) is connected to an assembly plate (8). On the top of the assembly plate (8), a welding assembly frame (9) is installed. On both sides of the assembly plate (8), an auxiliary fixing mechanism (10) is installed.
2. The welding and fixing structure according to claim 1, characterized in that: The lifting mechanism (3) includes a motor base (11). The motor base (11) is equipped with a first motor (12). The power output end of the first motor (12) is connected to a main gear (13). The main gear (13) is meshed with a secondary gear (14). At the bottom of the secondary gear (14), a threaded sleeve (15) is installed. At the outer bottom of the threaded sleeve (15), a bearing seat (16) is connected. The bearing seat (16) is installed on the support frame (2). The threaded sleeve (15) is connected to a threaded rod (17). The upper and lower sides of the threaded rod (17) penetrate through the secondary gear (14) and the support frame (2). The lower side of the threaded rod (17) is connected to a lifting plate (18). The mounting plate (4) is installed at the bottom of the lifting plate (18). A limiting block (19) is rotatably installed in the lifting plate (18). The limiting block (19) is installed at the bottom of the threaded rod (17). On the four sides of the top of the lifting plate (18), guide rods (20) are also installed. The guide rods (20) are slidably connected to guide sleeves (21). The guide sleeves (21) are installed on the support frame (2).
3. A welding and fixing structure according to claim 2, characterized in that: The buffer guiding mechanism (6) includes a buffer rod (22). The buffer rod (22) is slidably connected to a buffer ring (23). On the upper side of the buffer ring (23), a buffer spring (24) is installed. The free end of the buffer spring (24) is installed at the bottom of the mounting plate (4).
4. A welding and fixing structure according to claim 3, characterized in that: The translation mechanism (7) includes limiting plates (25) installed on the front and rear sides of the bottom plate (1). Bearings (26) are installed on the limiting plates (25). A lead screw (27) is installed between the bearings (26) on the front and rear sides. Among them, on the rear limiting plate (25), a second motor (28) is also installed. The power output end of the second motor (28) is connected to the lead screw (27). The lead screw (27) is connected to a nut moving seat (29). The nut moving seat (29) is fixedly installed at the bottom of the assembly plate (8). Between the limiting plates (25) on the front and rear sides, two groups of guide rails (30) are also installed. The two groups of guide rails (30) are arranged on both sides of the lead screw (27). On the top of the guide rails (30), a sliding seat (31) is slidably installed. The sliding seat (31) is installed at the bottom of the assembly plate (8).
5. A welding and fixing structure according to claim 4, characterized in that: The auxiliary fixing mechanism (10) includes a fixing base (32). Guide holes (33) matching the buffer rods (22) are provided on the front and rear sides of the fixing base (32). Threaded holes (34) are further provided on the front and rear sides of the fixing base (32). A screw rod (35) is connected to the threaded hole (34). A hexagonal turning block (36) is installed on the outer side of the screw rod (35). The inner side of the screw rod (35) is connected to a rotating shaft seat (37). An extrusion plate (38) is installed on the outer side of the rotating shaft seat (37). A buffer pad (39) is installed on the outer side of the extrusion plate (38).