High-precision welding production equipment for shell
By designing high-precision welding production equipment in shell processing, using visual sensors and multiple positioning mechanisms, the problems of low positioning accuracy and insolid welding in traditional welding methods are solved, and efficient and stable welding process is achieved, and the welding quality is improved and productivity.
Patent Information
- Application Number
- CN202411431983.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-14
- Publication Date
- 2024-12-17
AI Technical Summary
In the shell processing, traditional welding methods have problems such as low positioning accuracy, insolid welding and reduced aesthetics and strength caused by multiple welding.
A high-precision welding production equipment including base, positioning assembly, transmission assembly, robotic arms and welding heads was designed. Vision sensors were used for automated welding quality monitoring and back re-welding, combining magnetic suction ring, pneumatic adsorption and mechanical clamping. multi-location mechanism.
It improves the overall quality of the welded joints, reduces manual intervention, improves production efficiency, reduces labor intensity and human error risks, and ensures stability and accuracy during welding.
Smart Images
Figure CN119141073A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of welding, in particular to high-precision welding production equipment for shells. Background Art
[0002] In the production and processing of shell parts, especially when two or more shells need to be welded together to form a whole, traditional welding methods have certain limitations. First of all, docking and positioning the parts to be welded is a key link, but traditional practices often have shortcomings. Usually, operators will first place the two shells on a horizontal panel and press them into position manually or with simple mechanical devices. This positioning method is not only inefficient, but also difficult to ensure accuracy, which can easily lead to the offset of the welding position and the decline of weld quality.
[0003] Secondly, during the welding process, if the welding parameters are not set properly or the welding technology is not up to standard, it is easy to cause the welding to be loose. When the welding is not strong enough, the traditional practice is to weld again to strengthen the strength of the weld. However, this method has obvious disadvantages: on the one hand, multiple welding will cause problems such as unevenness and deformation on the shell surface, seriously affecting the appearance and overall quality of the product; on the other hand, multiple welding will also change the material properties of the welding area, reducing the strength and reliability of the weld.
[0004] Therefore, it is necessary to provide a high-precision shell welding production equipment to solve the above problems. Summary of the invention
[0005] In order to solve the above problems, the present invention provides the following technical solutions: a high-precision shell welding production equipment, comprising: A base, on which two symmetrically arranged positioning components are rotatably arranged, and the positioning components are used to clamp the shell; A transmission assembly, which is disposed on the base and is used to drive the two positioning assemblies to rotate synchronously; A mechanical arm, which is located at one side of the base and has a moving end, and the moving end has at least three degrees of freedom; A welding head, which is arranged at the moving end of the mechanical arm; Wherein, the positioning component comprises: A base plate is rotatably disposed on one side of the base; a first positioning mechanism, which is fixed to one side of the substrate; The second positioning mechanism is vertically slidably arranged on one side of the base plate, and a lifting cylinder is arranged between the first positioning mechanism and the second positioning mechanism.
[0006] Furthermore, preferably, a visual sensor is provided on one side of the welding head. When the visual sensor detects that the welding quality of the welding head to the shell does not meet the standard, the transmission assembly drives the positioning assembly to rotate 180° and the welding head performs welding again.
[0007] Further, preferably, the first positioning mechanism and the second positioning mechanism have the same structure, and both include: A mounting base, on which a track is fixed; A slide seat is slidably arranged on the track, and a telescopic cylinder is arranged between the slide seat and the mounting seat; A plurality of air pipes are fixed to one side of the slide seat, and the other side of the plurality of air pipes is commonly connected to an air bin, and the air bin is communicated with the air pipes.
[0008] Further, preferably, the air pipe is connected to an external air control device, and a plurality of positioning heads are connected below the air bin.
[0009] Further, as a preference, a clamping column or a clamping groove matching the clamping column is provided on the side of the gas bin, so that the two gas bins above the shell or the two gas bins below the shell can be clamped and matched with each other.
[0010] Further, as a preference, a gap is maintained between the two air bins located above the shell, and the two air bins located below the shell are snap-fitted to each other.
[0011] Further, preferably, the positioning head comprises: An annular groove fixedly connected to the bottom of the gas chamber; A filter screen, which is fixedly embedded in the annular groove and is used to intercept debris in the gas entering the gas chamber; An elastic ring pad is fixed below the ring groove.
[0012] Furthermore, preferably, a magnetic ring is embedded between the ring groove and the elastic ring gasket.
[0013] Further, preferably, the transmission assembly includes a double-headed motor having two output ends, both output ends are fixed with driving wheels, the driving wheels are connected to the driven wheels by belts, and the driven wheels are correspondingly connected to the positioning assembly.
[0014] Furthermore, preferably, the double-headed motor is a stepping motor with a self-locking function, and the transmission mode between the driving wheel and the driven wheel is a reduction transmission.
[0015] Compared with the prior art, the present invention provides a high-precision shell welding production equipment, which has the following beneficial effects: The present invention solves the problems of poor aesthetics, low precision and low strength caused by multiple front welding through the back re-welding solution, improves the overall quality of the welded joint, and reduces manual intervention through automated operations, improves production efficiency, and reduces labor intensity and the risk of human error. In addition, the magnetic ring is combined with pneumatic adsorption and mechanical clamping to form a multiple positioning mechanism to ensure the stability of the shell during the welding process. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is a schematic diagram of the main structure of a shell high-precision welding production equipment; Figure 2 It is a three-dimensional structural schematic diagram of a shell high-precision welding production equipment; Figure 3 It is a three-dimensional structural schematic diagram of a positioning component in a shell high-precision welding production equipment; Figure 4 It is a schematic diagram of the three-dimensional structure of a second positioning mechanism in a shell high-precision welding production equipment; Figure 5 It is a three-dimensional structural schematic diagram of a gas chamber in a shell high-precision welding production equipment; Figure 6 It is a schematic diagram of the cross-sectional structure of a positioning head in a high-precision shell welding production equipment; Figure 7 It is a schematic diagram of the implementation of a high-precision shell welding production equipment; In the figure: 1. base; 2. transmission assembly; 3. positioning assembly; 4. mechanical arm; 5. welding head; 21. double-headed motor; 22. driving wheel; 23. driven wheel; 24. belt; 31. base plate; 32. first positioning mechanism; 33. second positioning mechanism; 34. lifting cylinder; 331. mounting seat; 332. track; 333. slide seat; 334. air pipe; 335. air chamber; 336. positioning head; 337. telescopic cylinder; 338. clamping column; 3361. ring groove; 3362. filter screen; 3363. elastic ring pad; 3364. magnetic ring. DETAILED DESCRIPTION
[0017] The terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned description of the drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequential order. It should be understood that the terms used in this way can be interchangeable under appropriate circumstances, which is merely a way of distinguishing the objects of the same attributes when describing them in the embodiments of the present application. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, so that the process, method, system, product or equipment comprising a series of units need not be limited to those units, but may include other units that are not clearly listed or inherent to these processes, methods, products or equipment.
[0018] Please refer to Figure 1-Figure 7 In an embodiment of the present invention, a high-precision shell welding production equipment is provided, comprising: A base 1 is rotatably provided with two symmetrically arranged positioning components 3, and the positioning components 3 are used to clamp the shell; A transmission assembly 2, which is disposed on the base 1 and is used to drive the two positioning assemblies 3 to rotate synchronously; A mechanical arm 4, which is located at one side of the base 1 and has a moving end, and the moving end has at least three degrees of freedom; A welding head 5, which is arranged at the moving end of the mechanical arm 4; Wherein, the positioning component 3 includes: A base plate 31 is rotatably disposed on one side of the base 1; a first positioning mechanism 32, which is fixed to one side of the substrate 31; The second positioning mechanism 33 is vertically slidably disposed on one side of the base plate 31 , and a lifting cylinder 34 is disposed between the first positioning mechanism 32 and the second positioning mechanism 33 .
[0019] Among them, the two positioning components 3 can be named as the first positioning component and the second positioning component respectively, each positioning component 3 positions a shell, and the two shells can be named as the first shell and the second shell respectively, wherein the first positioning component is used to position the first shell, and the second positioning component is used to position the second shell. During positioning, the first positioning mechanism 32 and the second positioning mechanism 33 cooperate with each other to achieve clamping of the shell, and when welding, the first positioning component and the second positioning component cooperate with each other so that the first shell and the second shell are in close contact at the welding point. At this time, the robot arm 4 can be used to drive the welding head 5 for automatic welding.
[0020] Furthermore, a visual sensor is provided on one side of the welding head 5. When the visual sensor detects that the welding quality of the welding head 5 to the shell does not meet the standard, the transmission assembly 2 drives the positioning assembly 3 to rotate 180° and the welding head 5 performs welding again.
[0021] The implementation includes the following steps: S1. Place the first shell and the second shell to be welded on two positioning components (first positioning component and second positioning component) respectively; S2. The positioning assembly realizes the positioning of the housing by means of the cooperation between the first positioning mechanism 32 and the second positioning mechanism 33; S3. When welding, the first positioning assembly and the second positioning assembly cooperate with each other so that the first shell and the second shell to be welded are in close contact; S4. The robot arm 4 drives the welding head 5 to move to the welding position according to a preset program or real-time instructions; S5. The welding head 5 starts welding operation, and the visual sensor monitors the welding quality in real time; S6. After welding is completed, the visual sensor evaluates the welding quality. If it is detected that the welding quality is not up to standard (such as discontinuous welds, pores, etc.), the transmission component 2 drives the positioning component 3 to rotate 180° so that the back of the shell faces upward; S7. The robot arm 4 drives the welding head 5 again for secondary welding. Since the welding is performed on the back of the shell, the problem of reduced aesthetics caused by multiple welding on the front is avoided; S8. After the welding quality is qualified, the transmission assembly 2 is reset to prepare for the next round of welding operation, and the operator or automation equipment removes the welded shell from the positioning assembly.
[0022] In addition, the first positioning mechanism 32 and the second positioning mechanism 33 have the same structure, both comprising: A mounting base 331 on which a track 332 is fixed; A slide seat 333 is slidably disposed on the track 332 , and a telescopic cylinder 337 is disposed between the slide seat 333 and the mounting seat 331 ; A plurality of air pipes 334 are fixed to one side of the slide seat 333 , and the other side of the plurality of air pipes 334 is commonly connected to an air chamber 335 , and the air chamber 335 is communicated with the air pipes 334 .
[0023] The air pipe 334 is connected to an external air control device, and a plurality of positioning heads 336 are connected below the air chamber 335 .
[0024] Then, during implementation, the shell is first placed on the positioning head 336 relatively below. At this time, an external air control device can be used to generate a certain adsorption force to achieve preliminary positioning of the shell. After that, the second positioning mechanism 33 moves downward, thereby using the clamping force between the first positioning mechanism 32 and the second positioning mechanism 33 to achieve further positioning of the shell.
[0025] That is to say, in this embodiment, the dual positioning mechanism combining pneumatic adsorption and mechanical clamping can not only quickly and stably fix the shell in the initial stage, but also achieve more precise positioning through mechanical clamping in the subsequent stage, ensuring the accuracy and consistency of welding. More specifically, pneumatic adsorption can quickly generate sufficient adsorption force to initially fix the shell, buying time for the subsequent precise adjustment of mechanical clamping, thereby improving the overall positioning efficiency. The addition of mechanical clamping allows the shell to maintain a stable position even if it is subject to external disturbances during the welding process, reducing welding deviations and defects.
[0026] In order to further improve the welding accuracy, the side of the gas chamber 335 is provided with a clamping column 338 or a clamping groove matching the clamping column 338, so that the two gas chambers 335 above the shell or the two gas chambers 335 below the shell can be clamped and matched with each other.
[0027] Specifically, a gap is maintained between the two air chambers 335 located above the shell, and the two air chambers located below the shell are snap-fitted to each other.
[0028] That is to say, a gap is maintained between the two air chambers 335 located above the shell, in order to leave enough operating space for the welding head 5, ensuring that the welding head can approach and weld the part to be welded of the shell without hindrance, thereby avoiding welding difficulties or quality degradation caused by space limitations.
[0029] The two gas chambers 335 located below the shell are engaged with each other, thereby achieving effective support for the first shell and the second shell. This structure enhances the stability of the lower support structure, helps to maintain the stability of the shell during welding, and thus improves welding accuracy.
[0030] Even if the first positioning assembly and the second positioning assembly are turned over, the two gas chambers 335 located above the shell can still be adjusted to maintain the gap, providing the necessary operating space for the welding head 5; similarly, the two gas chambers 335 located below the shell can be adjusted to achieve mutual engagement and maintain the stability of the supporting structure. This method allows the device to maintain high precision and stability during flip welding.
[0031] In this embodiment, the positioning head 336 includes: The annular groove 3361 is fixedly connected to the lower side of the gas chamber 335; A filter screen 3362, which is fixedly embedded in the annular groove 3361 and is used to intercept debris in the gas entering the gas chamber 335; The elastic ring pad 3363 is fixed below the ring groove 3361 .
[0032] Furthermore, a magnetic ring 3364 is embedded between the annular groove 3361 and the elastic ring pad 3363 .
[0033] Among them, the elastic ring pad 3363 not only provides a soft interface with the shell, reducing the damage to the shell surface that may be caused by hard contact, but also enhances the sealing between the positioning head 336 and the shell through its elastic characteristics, thereby improving the effect of the adsorption force.
[0034] The magnetic ring 3364 is embedded between the ring groove 3361 and the elastic ring pad 3363. When processing a shell with magnetic attraction properties, the magnetic ring 3364 can first generate magnetic attraction with the shell to achieve pre-positioning of the shell. This pre-positioning not only speeds up the overall positioning process, but also improves the accuracy and stability of positioning.
[0035] In summary, when processing a shell with magnetic attraction properties, the magnetic ring 3364 first generates magnetic attraction with the shell to pre-position the shell on the positioning head 336. This step reduces the time and adjustment required for subsequent pneumatic adsorption and mechanical clamping.
[0036] On the basis of the pre-positioning, the external gas control device starts to work, sucking gas into the gas chamber 335, generating sufficient adsorption force to further fix the shell.
[0037] As the second positioning mechanism 33 descends, the first positioning mechanism 32 and the second positioning mechanism 33 jointly generate a clamping force to finally accurately position and clamp the housing.
[0038] After the shell is accurately clamped and positioned, the transmission assembly 2 adjusts the relative positions of the two positioning assemblies, and the robot arm drives the welding head to perform welding operations.
[0039] In other words, the pre-positioning function of the magnetic ring 3364 significantly shortens the overall positioning time and improves production efficiency. The magnetic ring 3364 is combined with pneumatic adsorption and mechanical clamping to form a multiple positioning mechanism to ensure the stability of the shell during the welding process.
[0040] In this embodiment, the transmission component 2 includes a double-headed motor 21, and the double-headed motor 21 has two output ends. Both output ends are fixed with a driving wheel 22. The driving wheel 22 is connected to the driven wheel 23 through a belt 24, and the driven wheel 23 is correspondingly connected to the positioning component 3.
[0041] The double-headed motor 21 is a stepping motor with a self-locking function, and the transmission mode between the driving wheel 22 and the driven wheel 23 is a reduction transmission.
[0042] In this embodiment, the double-headed motor 21 has two output ends, which can synchronously drive the two positioning components 3 to move synchronously, ensuring that the relative positions of the two shells remain consistent during the welding process, thereby improving the accuracy and stability of welding.
[0043] The double-headed motor 21 is a stepping motor with a self-locking function, which can accurately control the rotation angle and speed, and can keep the current position unchanged when the power supply is stopped, thereby preventing positioning deviation caused by external forces.
[0044] In addition, a reduction transmission is adopted between the driving wheel 22 and the driven wheel 23, which makes the rotation speed of the driven wheel 23 lower than the rotation speed of the driving wheel 22, which helps to increase the torque output of the transmission system, making the positioning assembly 3 more stable and reliable when clamping and positioning the shell. At the same time, the reduction transmission also helps to reduce the vibration and noise caused by high-speed rotation, and improve the running stability of the equipment.
[0045] What is described above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.
Claims
1. A high-precision shell welding production equipment, It is characterized in that include: A base (1) on which two symmetrically arranged positioning components (3) are rotatably arranged, and the positioning components (3) are used to clamp the shell; A transmission assembly (2) disposed on the base (1) and used to drive the two positioning assemblies (3) to rotate synchronously; A mechanical arm (4), which is located on one side of the base (1) and has a moving end, wherein the moving end has at least three degrees of freedom; A welding head (5), which is arranged at the moving end of the mechanical arm (4); Wherein, the positioning component (3) comprises: A base plate (31) rotatably disposed on one side of the base (1); A first positioning mechanism (32) fixed to one side of the substrate (31); The second positioning mechanism (33) is vertically slidably arranged on one side of the base plate (31), and a lifting cylinder (34) is arranged between the first positioning mechanism (32) and the second positioning mechanism (33).
2. A shell high-precision welding production equipment according to claim 1, It is characterized in that A visual sensor is provided on one side of the welding head (5); when the visual sensor detects that the welding quality of the welding head (5) to the shell does not meet the standard, the transmission component (2) drives the positioning component (3) to rotate 180°, and then the welding head (5) performs welding again.
3. The high-precision shell welding production equipment according to claim 1, It is characterized in that The first positioning mechanism (32) and the second positioning mechanism (33) have the same structure, and both comprise: A mounting seat (331) on which a track (332) is fixed; A sliding seat (333) is slidably disposed on the track (332), and a telescopic cylinder (337) is disposed between the sliding seat (333) and the mounting seat (331); A plurality of air pipes (334), wherein the air pipes (334) are fixed to one side of the sliding seat (333), and the other side of the plurality of air pipes (334) is commonly connected to an air bin (335), and the air bin (335) is in communication with the air pipes (334).
4. A shell high-precision welding production equipment according to claim 3, It is characterized in that The air pipe (334) is connected to an external air control device, and a plurality of positioning heads (336) are connected below the air chamber (335).
5. The high-precision shell welding production equipment according to claim 3, It is characterized in that A clamping column (338) or a clamping groove matching the clamping column (338) is provided on the side of the gas chamber (335), so that two gas chambers (335) above the shell or two gas chambers (335) below the shell can be clamped and matched with each other.
6. A shell high-precision welding production equipment according to claim 5, It is characterized in that A gap is maintained between the two air bins (335) located above the shell, and the two air bins (335) located below the shell are engaged with each other.
7. The high-precision shell welding production equipment according to claim 4, It is characterized in that The positioning head (336) comprises: An annular groove (3361) fixedly connected to the bottom of the gas chamber (335); A filter (3362) fixedly embedded in the annular groove (3361) for intercepting debris in the gas entering the gas chamber (335); An elastic ring gasket (3363) is fixed below the ring groove (3361).
8. The high-precision shell welding production equipment according to claim 7, It is characterized in that A magnetic attraction ring (3364) is embedded between the annular groove (3361) and the elastic annular pad (3363).
9. The high-precision shell welding production equipment according to claim 1, It is characterized in that The transmission assembly (2) comprises a double-headed motor (21), the double-headed motor (21) having two output ends, both output ends being fixed with a driving wheel (22), the driving wheel (22) being connected to a driven wheel (23) by a belt (24), and the driven wheel (23) being connected to the positioning assembly (3) accordingly.
10. The high-precision shell welding production equipment according to claim 9, It is characterized in that The double-headed motor (21) is a stepping motor with a self-locking function, and the transmission mode between the driving wheel (22) and the driven wheel (23) is a reduction transmission.