Anti-deviation welding equipment for hardware product machining

Abstract

The anti-deviation welding equipment for hardware product machining comprises a supporting platform used for supporting a positioning bottom plate; a positioning table is arranged on the outer wall of the positioning shaft, and a positioning hole is formed in the end; the first clamping mechanism is used for clamping the clamping sleeve; when the positioning shaft penetrates through the clamping sleeve, the positioning table abuts against the clamping sleeve, and the first clamping mechanism clamps the clamping sleeve, the inner wall of the clamping sleeve is attached to the outer wall of the positioning shaft, and the outer wall of the clamping sleeve abuts against the first connecting part. When the output shaft is inserted into the positioning hole, the bearing assembly abuts against the second connecting part. Before welding, positioning is achieved between the clamping sleeve and the first connecting part and between the bearing assembly and the second connecting part, and the clamped clamping sleeve is aligned with the output shaft and the bearing assembly in the axial direction of the positioning shaft, so that relative deviation caused by factors such as heat input or operation disturbance in the subsequent welding process is effectively prevented; the coaxiality of the axis of the clamping sleeve and the axis of the output shaft is effectively improved, and then the assembling precision and the operation stability of a final product are improved.

Description

Technical Field

[0001] This application relates to the field of welding technology, and in particular to anti-offset welding equipment for hardware product processing. Background Technology

[0002] With the development of hardware product processing technology, higher requirements are being placed on the welding precision and consistency of small-batch, customized workpieces. (Reference) Figure 1 and Figure 2 A power drill to grinder converter, as a typical modular hardware tool, usually includes a base plate 110, a clamp 120 for mounting the grinding wheel, a bearing assembly 130, and an output shaft 140. The clamp 120 is fixed to a connecting plate on the base plate 110 by welding, and the bearing assembly 130 is also welded to another connecting plate on the base plate 110 to ensure that the output shaft 140 can accurately transmit power and that the grinding wheel operates stably.

[0003] In related technologies, welding such components often relies on manual positioning by operators. Specifically, the base plate 110 is first placed on the workbench, then the clamp 120 is manually positioned to the predetermined position corresponding to the connecting plate of the base plate 110. Next, the bearing assembly 130 and the output shaft 140 are placed, and adjustments are made to align their axes. Finally, spot welding or full welding is performed. The entire process relies primarily on the operator's experience and visual inspection to ensure the relative positions of the components.

[0004] However, the aforementioned welding method, which relies on manual positioning, suffers from the problem of difficulty in controlling the welding position accuracy. Due to the lack of effective positioning between the jacket 120 and its corresponding connecting plate, and between the bearing assembly 130 and another connecting plate, relative misalignment is easily caused under welding heat input and operational disturbances. This leads to a deviation between the axis of the jacket 120 and the axis of the output shaft 140 during operation, thereby affecting the coaxiality and dynamic balance of the entire conversion device after assembly, ultimately reducing the stability and processing quality of the grinding operation. Summary of the Invention

[0005] Therefore, it is necessary to provide an anti-deviation welding device for hardware product processing, which addresses the problem that the welding position accuracy is difficult to control due to reliance on manual positioning during the welding process of the electric drill and grinding wheel conversion device in the existing technology.

[0006] This application provides an anti-offset welding device for processing hardware products, used for welding a conversion device between an electric drill and a grinding wheel. The conversion device includes a base plate, a sleeve, a bearing assembly, and an output shaft. The base plate has a first connecting part and a second connecting part. The output shaft passes through the bearing assembly. The anti-offset welding device for processing hardware products includes: a support platform for supporting and positioning the base plate; a positioning shaft horizontally positioned above the support platform, with a positioning table on its outer wall and a positioning hole coaxial with the positioning shaft at its end; and a first clamping mechanism for clamping the sleeve. When the positioning shaft passes through the sleeve, the positioning table abuts against the sleeve, and the first clamping mechanism clamps the sleeve, the inner wall of the sleeve fits against the outer wall of the positioning shaft, and the outer wall of the sleeve abuts against the first connecting part. When the output shaft is inserted into the positioning hole, the bearing assembly abuts against the second connecting part.

[0007] According to one embodiment of this application, the two ends of the clamp are provided with opposing first clamping plates and second clamping plates. The first clamping plate has a first through hole and a second through hole. The first clamping mechanism includes: a first clamping part for contacting the side of the first clamping plate opposite to the second clamping plate; a second clamping part for contacting the side of the second clamping plate opposite to the second clamping plate; a first positioning post fixed to the side of the first clamping part near the second clamping part for insertion into the first through hole; a second positioning post fixed to the side of the second clamping part near the first clamping part and opposite to the first positioning post for insertion into the second through hole; and a first driving assembly connecting the first clamping part and the second clamping part, wherein the first driving assembly is used to drive the first clamping part and the second clamping part to move closer to or further away from each other.

[0008] According to one embodiment of this application, the first driving component is used to drive the first clamping part and the second clamping part to move relative to each other between a first relative position and a second relative position; wherein, in the first relative position, the first positioning post abuts against the second positioning post; and in the second relative position, the distance between the first positioning post and the second positioning post is greater than the maximum distance between the first clamping plate and the second clamping plate of the sleeve in its natural state.

[0009] According to one embodiment of this application, it further includes: a first moving mechanism connected to the first driving component, the first moving mechanism being used to drive the first clamping mechanism to move between a working position and a material picking position; in the working position, the first clamping mechanism is located above the positioning shaft; in the material picking position, the first clamping mechanism is located above the parking position of the clamp.

[0010] According to one embodiment of this application, it further includes: a conveying mechanism for conveying the jackets one by one to the parking station.

[0011] According to one embodiment of this application, it further includes: a second clamping mechanism for clamping the output shaft; and a second moving mechanism connected to the second clamping mechanism, wherein the second moving mechanism is used to drive the second clamping mechanism to move, inserting the output shaft into the positioning hole or pulling the output shaft out of the positioning hole.

[0012] According to one embodiment of this application, it further includes: a clamping member having an arcuate contact surface; and a driving member disposed at the movable end of the second moving mechanism and connected to the clamping member, the driving member being used to drive the clamping member to move so that the arcuate contact surface abuts against or disengages from the outer wall of the bearing assembly.

[0013] According to one embodiment of this application, a positioning groove is provided on the upper side of the support platform, and the shape and size of the positioning groove are adapted to the base plate.

[0014] According to one embodiment of this application, the bottom of the positioning groove is provided with a countersunk hole, and a magnetic element is provided in the countersunk hole for adsorbing the base plate.

[0015] According to one embodiment of this application, it further includes: a welding actuator disposed above the support platform, for performing welding operations on the parts to be welded between the jacket and the first connecting part and between the bearing assembly and the second connecting part.

[0016] The aforementioned anti-offset welding equipment for hardware product processing features a positioning shaft that can pass through the clamping sleeve and be inserted into the output shaft. This provides a unique and precise reference for the inner wall of the clamping sleeve and the axis of the output shaft using the physical structure of the positioning shaft. When the first clamping mechanism clamps the clamping sleeve and the positioning table abuts against the clamping sleeve, its inner wall fits against the outer wall of the positioning shaft, and its outer wall abuts against the first connecting part of the base plate. This achieves simultaneous positioning of the clamping sleeve radially and axially with the positioning shaft and the first connecting plate. Simultaneously, the output shaft is inserted into the positioning hole, causing the bearing assembly to abut against the second connecting part of the base plate, ensuring the position of the bearing assembly. Therefore, before welding, positioning is achieved between the clamping sleeve and the first connecting part, and between the bearing assembly and the second connecting part. Furthermore, the clamped clamping sleeve, output shaft, and bearing assembly are aligned axially along the positioning shaft, effectively preventing relative offset caused by heat input or operational disturbances during subsequent welding. This effectively improves the coaxiality of the clamping sleeve axis and the output shaft axis, thereby enhancing the assembly accuracy and operational stability of the final product. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the electric drill and grinding wheel conversion device.

[0018] Figure 2 This is an application scenario diagram of a device that converts a hand drill into a grinding wheel.

[0019] Figure 3 This is an application scenario diagram of an anti-offset welding device for hardware product processing provided in an embodiment of this application.

[0020] Figure 4 This is a schematic diagram of the cooperation structure between the first clamping mechanism and the jacket in an anti-offset welding equipment for hardware product processing provided in an embodiment of this application.

[0021] Figure 5 This is an application scenario diagram of an anti-offset welding device for hardware product processing provided in another embodiment of this application.

[0022] Figure 6 This is an application scenario diagram of an anti-offset welding device for hardware product processing provided in another embodiment of this application.

[0023] Figure 7 This is a schematic diagram of the mating structure between the clamping member and the bearing assembly in an anti-offset welding equipment for hardware product processing provided in an embodiment of this application.

[0024] Figure 8 This is a schematic diagram of the support platform structure in an anti-offset welding device for hardware product processing provided in an embodiment of this application.

[0025] Figure label:

[0026] 100. Welding drill and grinding wheel conversion device; 110. Base plate; 111. First connecting part; 112. Second connecting part; 120. Jacket; 121. First clamping plate; 122. Second clamping plate; 123. First through hole; 124. Second through hole; 130. Bearing assembly; 140. Output shaft;

[0027] 200. Support platform; 210. Positioning groove; 220. Countersunk hole; 230. Magnetic component;

[0028] 300, positioning shaft; 310, positioning stage; 320, positioning hole;

[0029] 400, First clamping mechanism; 410, First clamping part; 420, Second clamping part; 430, First positioning post; 440, Second positioning post; 450, First drive assembly;

[0030] 500. First moving mechanism;

[0031] 600. Second clamping mechanism;

[0032] 700. Second moving mechanism;

[0033] 800. Anchoring components;

[0034] 900. Drive components. Detailed Implementation

[0035] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0036] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0037] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0038] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0039] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0040] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0041] Combination Figure 3 This invention provides an anti-deviation welding device for hardware product processing, used for welding a hand drill and grinding wheel conversion device 100. The hand drill and grinding wheel conversion device includes a base plate 110, a jacket 120, a bearing assembly 130, and an output shaft 140. The base plate 110 is provided with a first connecting part 111 and a second connecting part 112. The output shaft 140 passes through the bearing assembly 130. The anti-deviation welding device for hardware product processing includes: a support platform 200 for supporting the positioning base plate 110; and a positioning shaft 300, horizontally positioned above the support platform 200, with a positioning table provided on the outer wall of the positioning shaft 300. 310, the end of the positioning shaft 300 is provided with a positioning hole 320 extending along the axial direction of the positioning shaft 300 and aligned with the machine axis of the positioning shaft 300; the first clamping mechanism 400 is used to clamp the sleeve 120; wherein, when the positioning shaft 300 passes through the sleeve 120, the positioning platform 310 abuts against the sleeve 120, and the first clamping mechanism 400 clamps the sleeve 120, the inner wall of the sleeve 120 fits against the outer wall of the positioning shaft 300, and the outer wall of the sleeve 120 abuts against the first connecting part 111; when the output shaft 140 is inserted into the positioning hole 320, the bearing assembly 130 abuts against the second connecting part 112.

[0042] Exemplarily, the support platform 200 serves as the base of the equipment, providing a horizontal and stable plane for supporting and initially constraining the base plate 110 of the conversion device to be welded. In actual operation, the base plate 110 is placed on the platform manually or automatically. The positioning shaft 300 is horizontally positioned above the support platform 200, with its axis collinear with the assembly axes of the sleeve 120, bearing assembly 130, and output shaft 140. An annular protrusion, namely a positioning platform 310, is machined or installed on the outer wall of the positioning shaft 300. The outer diameter of the positioning platform 310 is larger than the cylindrical body of the positioning shaft 300, thus forming a stepped surface. A positioning hole 320 is provided at one end of the positioning shaft 300 along its axial direction. The first clamping mechanism 400 is capable of clamping the sleeve 120.

[0043] During the pre-welding positioning operation, the base plate 110 is first placed in the positioning position of the support platform 200. Then, the clamp 120 is fitted onto the outside of the positioning shaft 300. Due to the gap between the outer cylindrical surface of the positioning shaft 300 and the inner bore surface of the clamp 120, the clamp 120 can move along the positioning shaft 300. When the clamp 120 is advanced to a certain extent along the positioning shaft 300, one end face will contact the positioning platform 310 on the outer wall of the positioning shaft 300, thereby precisely defining the final axial position of the clamp 120. At this position, the lower side of the clamp 120 abuts against the first connecting portion 111 on the base plate 110. This process can be completed by the first clamping mechanism 400 or by manual operation. Subsequently, the first clamping mechanism 400 clamps the sleeve 120, so that the inner wall of the sleeve 120 fits against the outer wall of the positioning shaft 300. At this time, the axis of the cylindrical structure formed by the part of the sleeve 120 that fits against the positioning shaft 300 coincides with the axis of the positioning shaft 300, and is also collinear with the assembly axis of the bearing assembly 130 and the output shaft 140.

[0044] At this time, the first clamping mechanism 400 performs a clamping action. For the sleeve 120 with a certain degree of elasticity (e.g., it has an opening or elastic groove structure), the clamping force will cause it to produce a slight elastic deformation, thereby making its inner hole wall more tightly and evenly wrap around and fit against the smooth and hard outer cylindrical surface of the positioning shaft 300. This fitting process forcibly eliminates the radial assembly gap between the two, ensuring that the inner hole axis of the sleeve 120 (i.e., the axis in the working state) coincides with the outer cylindrical surface axis of the positioning shaft 300, realizing precise radial positioning and alignment. While achieving radial fitting and axial abutment, the outer wall of the sleeve 120 will maintain close contact with the corresponding welding surface of the first connecting part 111 on the base plate 110. In this way, the spatial position (including distance and angle) of the sleeve 120 relative to the first connecting part 111 at the welding point is uniquely and precisely determined.

[0045] After positioning the sleeve 120, the operator aligns one end of the output shaft 140 with the positioning hole 320 at the end of the positioning shaft 300 and inserts it axially. The positioning hole 320 extends axially along the positioning shaft 300 and is coaxial with the positioning shaft 300, providing a unique and correct guide for the insertion of the output shaft 140. When the output shaft 140 is inserted until its end contacts the bottom of the positioning hole 320, the mounting surface of the bearing assembly 130 (e.g., bearing outer ring or bearing housing) mounted on the output shaft 140 contacts the corresponding surface of the second connecting portion 112 on the base plate 110. At this time, the relative position of the bearing assembly 130 and the second connecting portion 112 is determined, and the output shaft 140 maintains a coaxial relationship with the positioning shaft 300 through the positioning hole 320.

[0046] Through the positioning operation based on the positioning shaft 300, all critical components to be welded (jacket 120, output shaft 140, and bearing assembly 130) are precisely positioned before the welding heat source is activated. The entire system ensures accuracy through physical constraints rather than manual visual inspection or intuition. The positioning shaft 300, serving as a common reference shaft passing through the inner hole of the jacket 120 and the end of the output shaft 140, ensures that the axis of the jacket 120 is collinear with the axis of the output shaft 140 during operation. This allows subsequent welding processes to focus solely on fixing the connection, eliminating the need for dynamic correction or compensation for alignment errors. This completely avoids relative displacement of components caused by welding heat deformation, stress release, or operational interference, ensuring extremely high coaxiality of the core transmission components in the final product and guaranteeing the product's assembly quality and performance.

[0047] It is understood that the diameter of the position where the positioning shaft 300 contacts the sleeve 120 and the diameter of the position where the electric drill is used to cooperate with the sleeve 120 are equal or nearly equal. Therefore, when using the electric drill and grinding wheel conversion device for positioning welding in the anti-offset welding equipment for hardware processing of this embodiment, locking the sleeve 120 can ensure that the axis of the electric drill's jaws is collinear with the axis of the output shaft 140.

[0048] Combination Figure 3 In some embodiments, the two ends of the sleeve 120 are provided with opposing first clamping plates 121 and second clamping plates 122, and the first clamping plate 121 has a first through hole 123 and a second through hole 124.

[0049] The first clamping mechanism 400 includes a first clamping part 410, a second clamping part 420, a first positioning post 430, a second positioning post 440, and a first driving assembly 450. The first clamping part 410 is used to contact the side of the first clamping plate 121 opposite to the second clamping plate 122; the second clamping part 420 is disposed opposite to the first clamping part 410 and is used to contact the side of the second clamping plate 122 opposite to the second clamping plate 122; the first positioning post 430 is fixed to the side of the first clamping part 410 near the second clamping part 420 and is used to insert into the first through hole 123; the second positioning post 440 is fixed to the side of the second clamping part 420 near the first clamping part 410 and is disposed opposite to the first positioning post 430 and is used to insert into the second through hole 124; the first driving assembly 450 connects the first clamping part 410 and the second clamping part 420 and is used to drive the first clamping part 410 and the second clamping part 420 to move closer to or further away from each other.

[0050] Exemplarily, the first clamping part 410 is used to contact the surface of the first clamping plate 121 opposite to the second clamping plate 122, and the second clamping part 420 is disposed opposite to the first clamping part 410 and is used to contact the surface of the second clamping plate 122 opposite to the first clamping plate 121, thereby providing clamping force from both sides of the clamping sleeve 120. The first positioning post 430 is fixed to the side of the first clamping part 410 near the second clamping part 420, and its position corresponds to the first through hole 123, and it can be inserted into the first through hole 123; the second positioning post 440 is fixed to the side of the second clamping part 420 near the first clamping part 410, and is disposed opposite to the first positioning post 430, and its position corresponds to the second through hole 124, and it can be inserted into the second through hole 124. The first driving assembly 450 connects the first clamping part 410 and the second clamping part 420, and is used to drive the two to move closer or further apart to perform clamping or releasing actions. When clamping sleeve 120 is required, the first drive assembly 450 drives the first clamping part 410 and the second clamping part 420 to move closer together, so that the first positioning post 430 and the second positioning post 440 are aligned and inserted into the first through hole 123 and the second through hole 124, respectively. This insertion action provides precise pre-positioning for sleeve 120 before the clamping force is fully applied, physically restricting the degree of freedom of movement and rotation of sleeve 120 in the direction perpendicular to the clamping direction, ensuring that sleeve 120 has a definite and unique posture relative to the first clamping mechanism 400. Subsequently, the clamping parts continue to move closer, and their contact surfaces finally press against the outer sides of the first clamping plate 121 and the second clamping plate 122, thereby firmly clamping sleeve 120.

[0051] By setting positioning pins that precisely mate with the through holes of the sleeve 120, the clamping process incorporates guiding and angular positioning functions. This effectively prevents in-plane slippage or circumferential rotation of the sleeve 120 during final clamping, thus ensuring the consistency of the posture of the sleeve 120 relative to the clamping mechanism each time it is gripped. This high repeatability of gripping accuracy is a prerequisite for the subsequent high-precision coaxial fitting of the sleeve 120 and the positioning shaft 300, avoiding cumulative errors caused by gripping posture deviations from the outset, and laying a reliable foundation for the accuracy of the entire welding process.

[0052] In some embodiments, the first driving assembly 450 is used to drive the first clamping portion 410 and the second clamping portion 420 to move relative to each other between a first relative position and a second relative position; wherein, in the first relative position, the first positioning post 430 abuts against the second positioning post 440; in the second relative position, the distance between the first positioning post 430 and the second positioning post 440 is greater than the maximum distance between the first clamping plate 121 and the second clamping plate 122 of the sleeve 120 in its natural state. Exemplarily, when in the first relative position, the ends of the first positioning post 430 and the second positioning post 440 are in contact with each other, at which time the distance between the two clamping portions is minimum, and the clamping force reaches maximum. When in the second relative position, the distance between the first positioning post 430 and the second positioning post 440 is set to be greater than the maximum distance between the outer sides of the first clamping plate 121 and the second clamping plate 122 of the sleeve 120 in its natural, unforced state. During the preparation or loading stage, the drive assembly positions the clamping part in the second relative position. At this point, there is sufficient space between the two positioning posts to allow for unobstructed access to or release of the clamping sleeve 120 body, avoiding the risk of collision between components and positioning posts. This significantly improves the convenience of loading and unloading operations and the safety of equipment operation. Upon entering the working stage, the drive assembly drives the clamping part from the second relative position to the first relative position. During this stroke, the positioning posts first locate and align with the holes for precise guidance, and then the clamping part closes and applies the final clamping force.

[0053] Defining the first relative position as the contact state between the ends of the positioning pins sets a rigid mechanical endpoint for the entire clamping stroke. This effectively prevents over-clamping caused by overtravel of the drive components or control malfunction, thus protecting the elastic structure of the jacket 120 and the positioning pins themselves from damage. Furthermore, it ensures that the final physical state of each clamping action is unique and constant, eliminating the problem of slight changes in clamping position caused by hydraulic or pneumatic pressure fluctuations, thereby greatly improving the consistency between clamping force and clamping position. This highly consistent clamping state is a key mechanical guarantee for ensuring the stability of welding quality in batch products.

[0054] Optionally, the first drive assembly 450 includes two telescopic members arranged opposite to each other. The telescopic members can be hydraulic cylinders, air cylinders, or telescopic motors, etc. The movable end of the telescopic member is fixed to the first clamping part 410 or the second clamping part 420 on its corresponding side by welding or bolt connection, etc. The first clamping part 410 and the second clamping part 420 are driven to move closer or further away from each other by the synchronous telescopic movement of the two telescopic members, so as to achieve clamping or release.

[0055] Combination Figure 5 In some embodiments, the anti-offset welding equipment for hardware product processing further includes a first moving mechanism 500, which is connected to a first driving assembly 450. The first moving mechanism 500 is used to drive a first clamping mechanism 400 to move between a working position and a material-picking position. In the working position, the first clamping mechanism 400 is located above the positioning axis 300; in the material-picking position, the first clamping mechanism 400 is located above the parking position of the sleeve 120. Exemplarily, the first moving mechanism 500 is connected to an integral frame carrying the first driving assembly 450 and the clamping part, and is capable of driving the entire first clamping mechanism 400 to reciprocate between the working position and the material-picking position. In the working position, the first clamping mechanism 400 is suspended directly above the positioning axis 300, and the sleeve 120 on the first clamping mechanism 400 is located outside the positioning axis 300. In the material-picking position, the first clamping mechanism is located above the parking position of the sleeve 120 so as to grip the sleeve 120 to be welded from there. During the process of the first clamping mechanism grabbing the sleeve 120 to be welded at the material picking position and moving it to the working position, the sleeve 120 can be moved from the end of the positioning shaft 300 to the position that contacts the positioning table 310 of the positioning shaft 300.

[0056] Optionally, the first moving mechanism 500 includes a cross-shaped planar moving component and a support arm. The cross-shaped planar moving component includes a first linear guide rail, a second linear guide rail, a first linear motor, and a second linear motor. The first linear guide rail is parallel to the positioning axis 300. The second linear guide rail is slidably connected to the first linear guide rail along its extension direction. The first linear motor is mounted on the first linear guide rail, and its output end is fixedly connected to the second linear guide rail. The first linear motor can drive the second linear guide rail to reciprocate along the first linear guide rail. The second linear guide rail extends in a direction perpendicular to the positioning axis. The support arm is slidably connected to the second linear guide rail and connected to the first drive component 450. The second linear motor is disposed on the second linear guide rail, and its output end is fixedly connected to the support arm. The second linear motor can drive the support arm to reciprocate along the second linear guide rail. The coordinated operation of the first and second linear motors can drive the first clamping mechanism 400 to move between the working position and the material picking position. Of course, the first moving mechanism 500 can also adopt other structural forms such as a robotic arm.

[0057] Optionally, the first drive assembly 450 is configured to drive the first clamping part 410 and the second clamping part 420 to move from the second relative position to a position between the first relative position and the second relative position when the first clamping mechanism 400 is in the material picking position, so that the first positioning post 430 and the second positioning post 440 are inserted into the corresponding first through hole 123 and second through hole 124, and the clamp 120 is hung on the first positioning post 430 and the second positioning post 440 to realize the hoisting of the clamp 120. Furthermore, there is a gap between the first positioning post 430 and the second positioning post 440, the first clamping part 410 and the second clamping part 420 do not clamp the clamp 120, and the inner diameter of the clamp 120 is larger than the inner diameter of the positioning shaft 300, so as to facilitate the clamp 120 being fitted on the outside of the positioning shaft 300. Furthermore, the first drive assembly 450 is configured such that, after the first moving mechanism 500 drives the first clamping mechanism 400 to move from the material picking position to the working position, it drives the first clamping part 410 and the second clamping part 420 to move to a first relative position, so that the first positioning post 430 abuts against the second positioning post 440, and the first clamping part 410 and the second clamping part 420 clamp the sleeve 120, with the inner wall of the sleeve 120 fitting against the outer wall of the positioning shaft 300 to facilitate welding; after welding is completed, it drives the first clamping part 410 and the second clamping part 420 to move to a second relative position to release the sleeve 120, at which point the first clamping mechanism 400 can be driven to reset to the material picking position. Thus, the material picking and welding positioning of the sleeve 120 can be replaced manually, effectively reducing labor costs and improving welding accuracy.

[0058] Optionally, there are two or more first moving mechanisms 500 and first clamping mechanisms 400 respectively. The two or more first moving mechanisms 500 alternately drive their corresponding first clamping mechanisms 400 to move between the working position and the material picking position, thereby improving production efficiency.

[0059] In some embodiments, the anti-offset welding equipment for hardware product processing further includes a conveying mechanism (not shown in the figure) for conveying the jackets 120 one by one to the parking station.

[0060] For example, the conveying mechanism may include a vibratory feeder and a linear guide. The vibratory feeder can orient a large number of scattered clamps 120, outputting them with the first clamp 121 and the second clamp 122 facing upwards. The linear guide receives the clamps 120 output by the vibratory feeder and pushes them one by one smoothly to a precisely defined stopping point. The linear guide may be provided with grooves or clamping structures for positioning the clamps 120 to prevent the clamps 120 from shifting or tilting during the conveying process. Through the conveying mechanism, the feeding of the clamps 120 is completely unmanned, replacing the traditional manual picking and placing operations. Automated feeding not only frees operators from repetitive and tedious physical labor, but also conveys the clamps 120 to the stopping station at a constant rhythm with completely consistent posture and spatial coordinates. This standardization of the incoming material status (including position, angle, and height) is a prerequisite for ensuring that the first clamping mechanism 400 can successfully and reliably grasp the material in the exact same way every time.

[0061] Combination Figure 6 In some embodiments, the anti-offset welding equipment for hardware product processing further includes a second clamping mechanism 600 and a second moving mechanism 700. The second clamping mechanism 600 is used to clamp the output shaft 140. The second moving mechanism 700 is connected to the second clamping mechanism 600 and is used to drive the second clamping mechanism 600 to move, inserting the output shaft 140 into the positioning hole 320 or pulling the output shaft 140 out of the positioning hole 320.

[0062] For example, the second clamping mechanism 600 may take the form of pneumatic fingers or servo mechanical grippers, whose grippers are used to reliably grasp the shaft body or a specific slot portion of the output shaft 140. The second moving mechanism 700 is rigidly connected to the second clamping mechanism 600 and drives it to move along a pre-defined spatial path, which allows the clamped output shaft 140 to be precisely aligned and inserted linearly into the positioning hole 320 at the end of the positioning shaft 300. In the assembly sequence, the installation of the output shaft 140 is performed after the clamping sleeve 120 has been positioned and fixed.

[0063] Through the stable gripping of the second clamping mechanism 600 and the precise positioning and pushing of the second moving mechanism 700, the output shaft 140 is automatically, vertically, and coaxially inserted into the positioning hole 320. This process completely eliminates the problems of hand tremors, viewing angle errors, and misalignment that are unavoidable during manual hand-held installation. The second clamping mechanism 600 ensures that the output shaft 140 remains stable during movement and descent, without tilting or rotation. The second moving mechanism 700 can adopt the same or similar structure as the first moving mechanism 500, which will not be described in detail here. The second moving mechanism 700 can provide smooth, wobbly, and precisely path-precise feed motion. The coordinated work of the two ensures a precise clearance fit or transition fit between the output shaft 140 and the positioning hole 320, thereby indirectly ensuring that the bearing assembly 130 mounted on the output shaft 140 can accurately descend to the predetermined height and make contact with the second connecting part 112 on the base plate 110. This fully automated installation method significantly improves assembly efficiency while effectively improving alignment accuracy.

[0064] Combination Figure 6 and Figure 7 In some embodiments, the anti-offset welding equipment for hardware product processing further includes a clamping member 800 and a driving member 900. The clamping member 800 has an arc-shaped contact surface; the driving member 900 is disposed at the movable end of the second moving mechanism 700 and connected to the clamping member 800, and the driving member 900 is used to drive the clamping member 800 to move so that the arc-shaped contact surface abuts against or disengages from the outer wall of the bearing assembly 130.

[0065] For example, the radius of curvature of the arcuate surface matches the radius of the outer wall of the bearing assembly 130 to ensure good surface contact. The drive element 900 can specifically be a small cylinder or electric actuator, mounted at the movable end of the second moving mechanism 700 and connected to the abutment 800, driving the abutment 800 to make short-stroke linear movements extending or retracting in a direction perpendicular to the axis of the output shaft 140. When the second moving mechanism 700 transports the output shaft 140 and the bearing assembly 130 close to the surface of the second connecting portion 112, the drive element 900 actuates, pushing the abutment 800 to extend, causing its arcuate surface to mate and abut against the outer wall of the bearing assembly 130. This radially applied abutment force provides stability. It effectively eliminates rotation that may occur in the bearing assembly 130 during welding, avoiding quality defects such as uncertain welding position, uneven welding strength, or incomplete welds. After welding is completed, the drive element 900 drives the abutment 800 to retract.

[0066] Combination Figure 8 In some embodiments, a positioning groove 210 is provided on the upper side of the support platform 200, and the shape and size of the positioning groove 210 are adapted to the base plate 110.

[0067] For example, the shape and contour of the positioning groove 210 are milled according to the top view projection of the base plate 110, and its size is slightly larger than the solid body of the base plate 110, forming a small-gap enclosing fit, for example, a very small gap is reserved on one side. When the base plate 110 is placed, the four side walls of the positioning groove 210 restrict all the degrees of freedom of movement and rotation of the base plate 110 in the horizontal plane, effectively preventing the base plate 110 from being displaced during the process of the sleeve 120, bearing assembly 130 and output shaft 140 moving above the base plate 110 or during welding. As a result, the accuracy of welding can be effectively improved.

[0068] The process of placing the base plate 110 into the positioning slot 210 can be completed manually by the operator or automatically by equipment such as a robotic arm; no specific limitation is made here.

[0069] In some embodiments, the bottom of the positioning groove 210 is provided with a countersunk hole 220, and a magnetic element 230 is provided in the countersunk hole 220. The magnetic element 230 is used to attract the base plate 110.

[0070] For example, multiple countersunk holes 220 are machined at the bottom of the positioning groove 210, and a magnetic component 230, such as a powerful permanent magnet or a controllable electromagnet module, is embedded in each countersunk hole 220. When the base plate 110 is placed into the positioning groove 210, these magnetic components 230 will attract the base plate 110, thereby providing an attractive fixing force in the vertical direction (i.e., the Z direction). This magnetic attraction effectively prevents the base plate 110 from tilting, bouncing, or slightly shifting during subsequent automated assembly operations due to slight vibrations caused by the movement of the robotic arm, impacts generated by the movement of pneumatic components, or forces generated during the installation of components such as the clamp 120. Especially in fully automated unmanned operation environments, the combined action of multiple motion mechanisms may create a complex mechanical environment. Magnetic attraction provides a simple and effective holding solution, significantly enhancing stability during operation.

[0071] Compared to active fixing methods such as mechanical pressure plates and cylinder push rods, magnetic adsorption does not require complex drive mechanisms and control systems, does not occupy valuable operating space on the surface of the base plate 110, and will not interfere with the welding path or the movement trajectory of the clamping mechanism. It achieves invisible and efficient fixing, providing sufficient holding force while taking into account the simplicity, reliability and ease of operation of the system.

[0072] In some embodiments, the anti-offset welding equipment for hardware product processing further includes a welding actuator (not shown in the figure), which is disposed above the support platform 200 and is used to perform welding operations on the parts to be welded between the jacket 120 and the first connecting part 111 and between the bearing assembly 130 and the second connecting part 112.

[0073] For example, the welding actuator can be a six-axis industrial robot equipped with a welding torch, installed in a spatial position to the side or above the support platform 200. Its motion trajectory, welding speed, current and voltage parameters are all preset. After the aforementioned actions such as positioning of the base plate 110, gripping and positioning of the sleeve 120, gripping and inserting of the output shaft 140, and bearing assembly 130 are completed, the welding actuator starts according to the predetermined program, driving the welding torch to move to the starting point of the preset welding trajectory, and automatically welding the joint between the sleeve 120 and the first connecting part 111, and the joint between the bearing assembly 130 and the second connecting part 112 in sequence. The welding actuator eliminates the quality fluctuations caused by subjective factors such as differences in operator skill, fatigue, and distraction in manual welding. It not only ensures product consistency and precision but also helps to improve production efficiency.

[0074] In some embodiments, the anti-deviation welding equipment for hardware product processing further includes a weld detection device, a system controller, and an alarm device. The weld detection device is disposed above the support platform 200 and is used to detect the welds between the jacket 120 and the first connecting portion 111, and between the bearing assembly 130 and the second connecting portion 112. The system controller is signal-connected to the weld detection device and the alarm device, and is used to control the operation of the alarm device based on the detection signal from the weld detection device.

[0075] The weld inspection device includes an industrial vision sensor unit. The industrial vision sensor unit includes a high-resolution camera, an illumination source, and a protective housing. The optical axis of the camera lens is vertically or obliquely aligned with the weld area between the clamp 120 and the first connecting portion 111, and between the bearing assembly 130 and the second connecting portion 112. The illumination source provides stable and uniform illumination during inspection to highlight surface morphology features such as the weld's contour, continuity, and surface texture.

[0076] The system controller can be an industrial PLC or industrial computer, and it pre-stores standard image feature data or geometric parameter thresholds for qualified welds. After the welding actuator completes the work at all welding points according to the predetermined program, the system controller issues a command to control the camera of the weld detection device to acquire images of the two welds respectively. The acquired real-time weld images are transmitted to the image processing module in the system controller for processing and analysis. The image processing module extracts features from the real-time weld images, such as identifying the weld boundary through edge detection algorithms, calculating the weld width uniformity, and identifying defects such as breaks, undercut, weld beads, or obvious surface depressions. The system controller compares and judges the extracted feature data with the pre-stored standard data.

[0077] Based on the judgment result, the system controller executes corresponding control actions: if the detection result meets the preset qualification standard, the controller determines that the current workpiece welding is qualified and does not send a control signal to the alarm device. If a defect exceeding the allowable range is detected in the weld, the system controller sends a control signal to the alarm device, causing the alarm device to trigger an abnormal alarm. Alarms can be implemented in various forms, such as illuminating red alarm lights on-site, displaying prominent warning messages and defect images on the control interface, or issuing a warning sound via an audible and visual alarm. The system controller can also automatically lock the workstation where the currently unqualified workpiece is located and may suspend subsequent automated production processes, awaiting operator intervention for inspection and handling.

[0078] Optionally, the system controller is also signal-connected to the welding actuator, the first drive assembly 450, the first moving mechanism 500, the second clamping mechanism 600, the second moving mechanism 700, and the drive element 900, for controlling the operation of the welding actuator, the first drive assembly 450, the first moving mechanism 500, the second clamping mechanism 600, the second moving mechanism 700, and the drive element 900 based on the detection signal of the weld detection device.

[0079] If the test results meet the preset pass criteria, the controller determines that the current workpiece welding is qualified and can control the welding actuator, first drive assembly 450, first moving mechanism 500, second clamping mechanism 600, second moving mechanism 700, and drive component 900 to proceed to the next workpiece processing cycle. If a defect exceeding the allowable range is detected in the weld, the controller stops the operation of the welding actuator, first drive assembly 450, first moving mechanism 500, second clamping mechanism 600, second moving mechanism 700, and drive component 900, suspending the subsequent automated production process and awaiting operator intervention for inspection and handling.

[0080] Through the weld inspection device and system controller, this equipment achieves a complete manufacturing closed loop, from precise positioning, automatic welding, online inspection to result feedback. It transforms the traditional quality control method of welding production, which relies on post-production sampling or manual visual inspection, into an advanced online, real-time, and full-inspection model. This allows for the immediate detection of welding defects during production, preventing defective products from flowing into subsequent processes or being delivered to customers, greatly improving the consistency of product quality. Furthermore, the real-time anomaly alarm function enables the equipment to have preliminary self-diagnosis and problem early warning capabilities, promptly notifying operators to handle process anomalies such as welding torch wear and parameter drift. This avoids large-scale batch scrapping due to failure to detect defects in a timely manner during unattended or mass production, reducing quality risks and production costs.

[0081] In addition, the system controller can record and store detection data, providing a reliable data foundation for production process traceability and continuous optimization of welding process parameters, thereby promoting the digital and intelligent management of the production process.

[0082] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0083] The above embodiments merely illustrate several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A non-deviation welding device for processing hardware products, characterized in that, A welding device for converting a hand drill to a grinding wheel, the conversion device comprising a base plate, a jacket, a bearing assembly, and an output shaft, wherein the base plate is provided with a first connecting part and a second connecting part, and the output shaft passes through the bearing assembly; the anti-deviation welding equipment for hardware product processing includes: A support platform is used to support and position the base plate; A positioning shaft is horizontally positioned above the support platform. The outer wall of the positioning shaft is provided with a positioning platform, and the end of the positioning shaft is provided with a positioning hole coaxial with the positioning shaft. A first clamping mechanism is used to clamp the sleeve; Specifically, when the positioning shaft passes through the sleeve, the positioning platform abuts against the sleeve, and the first clamping mechanism clamps the sleeve, the inner wall of the sleeve fits against the outer wall of the positioning shaft, and the outer wall of the sleeve abuts against the first connecting part; when the output shaft is inserted into the positioning hole, the bearing assembly abuts against the second connecting part.

2. The anti-deviation welding equipment for hardware product processing according to claim 1, wherein the two ends of the jacket are provided with opposing first clamping plates and second clamping plates, the first clamping plate having a first through hole and a second through hole, characterized in that, The first clamping mechanism includes: The first clamping part is used to contact the side of the first clamping plate opposite to the second clamping plate; The second clamping part is disposed opposite to the first clamping part and is used to contact the side of the second clamping plate away from the second clamping plate. The first positioning post is fixed to the side of the first clamping part near the second clamping part and is used to be inserted into the first through hole; The second positioning post is fixed to the side of the second clamping part near the first clamping part and is disposed opposite to the first positioning post, for insertion and engagement with the second through hole; A first driving component connects the first clamping part and the second clamping part, and the first driving component is used to drive the first clamping part and the second clamping part to move closer or further apart from each other.

3. The anti-deviation welding equipment for hardware product processing according to claim 2, characterized in that, The first driving component is used to drive the first clamping part and the second clamping part to move relative to each other between a first relative position and a second relative position; In the first relative position, the first positioning post abuts against the second positioning post; in the second relative position, the distance between the first positioning post and the second positioning post is greater than the maximum distance between the first clamping plate and the second clamping plate of the sleeve in its natural state.

4. The anti-deviation welding equipment for hardware product processing according to claim 2 or 3, characterized in that, Also includes: A first moving mechanism is connected to the first driving component and is used to drive the first clamping mechanism to move between a working position and a material picking position. In the working position, the first clamping mechanism is located above the positioning shaft; in the material picking position, the first clamping mechanism is located above the parking position of the sleeve.

5. The anti-deviation welding equipment for hardware product processing according to claim 4, characterized in that, Also includes: A conveying mechanism is used to convey the jackets one by one to the parking station.

6. The anti-deviation welding equipment for hardware product processing according to any one of claims 1 to 3, characterized in that, Also includes: The second clamping mechanism is used to clamp the output shaft; The second moving mechanism is connected to the second clamping mechanism. The second moving mechanism is used to drive the second clamping mechanism to move, inserting the output shaft into the positioning hole or pulling the output shaft out of the positioning hole.

7. The anti-deviation welding equipment for hardware product processing according to claim 6, characterized in that, Also includes: A clamping element having an arc-shaped contact surface; A driving member is disposed at the movable end of the second moving mechanism and connected to the abutting member. The driving member is used to drive the abutting member to move so that the arc-shaped contact surface abuts or disengages from the outer wall of the bearing assembly.

8. The anti-deviation welding equipment for hardware product processing according to any one of claims 1 to 3, characterized in that, The upper side of the support platform is provided with a positioning groove, the shape and size of which are adapted to the base plate.

9. The anti-deviation welding equipment for hardware product processing according to claim 8, characterized in that, The bottom of the positioning groove is provided with a countersunk hole, and a magnetic element is provided in the countersunk hole. The magnetic element is used to attract the base plate.

10. The anti-deviation welding equipment for hardware product processing according to any one of claims 1 to 3, characterized in that, Also includes: A welding actuator, disposed above the support platform, is used to perform welding operations on the parts to be welded between the jacket and the first connecting part and between the bearing assembly and the second connecting part.

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