Automatic welding device for blade of self-expanding base plate anchor

Abstract

This invention relates to the field of anchor welding technology, and in particular to an automatic welding device for self-expanding anchor bolts using blades. The device includes: a load-bearing assembly comprising a sleeve, an anchor bolt, a blade groove end, and a blade; a positioning assembly comprising a positioning core, with a ball bearing inside the sleeve; an indexing rotation assembly comprising a turntable; and a welding assembly comprising a robotic arm. Blade installation and welding are synchronously controlled by the turntable, achieving a continuous anchor bolt blade welding process, improving processing efficiency. Simultaneously, the positioning core provides auxiliary positioning, improving welding quality. A magnetic ring moves synchronously with the turntable, enabling automatic locking and unlocking of the anchor bolt, further improving welding efficiency. The interlocking of anti-slip textures and anti-slip blocks ensures more precise angle rotation, preventing slippage. Furthermore, the indexing value of the dial is adjusted according to the anchor bolt model, meeting different usage requirements and expanding application scenarios.

Description

Technical Field

[0001] This invention relates to the field of anchor welding technology, and in particular to an automatic blade welding device for self-expanding anchor bolts. Background Technology

[0002] Self-expanding anchors are highly efficient post-construction anchoring fasteners, commonly used for securing heavy loads in concrete or rock structures. Their core design principle lies in the expansion mechanism: during installation, rotation or other manipulations open the expanded portion at the bottom of the anchor, creating a larger anchoring area and increasing the anchoring force. This design effectively distributes load and releases expansion stress, preventing substrate damage caused by excessive localized stress, thus exhibiting high stability and pull-out resistance.

[0003] Multiple blades are typically installed at the top of self-expanding anchors. These blades play a crucial role in the expansion and locking process of the anchor. When the anchor is screwed in or operated, the blades cut into the concrete or substrate, allowing the bottom of the anchor to expand more smoothly and embed itself into the material, thus ensuring efficient anchoring under various conditions. Simultaneously, these blades prevent the anchor from loosening under load, improving the overall system's safety and durability. The number of blades is adjusted according to the anchor model; generally, larger diameter anchors require more blades. This structure is widely used in bridge construction, building supports, and other engineering fields involving high-load fixing, especially effective in situations requiring long-term stability and high tensile strength.

[0004] Acetylene-oxygen welding is a common welding method that uses the high temperature of burning mixed gases to melt the welding wire, welding the blade and the anchor base together. This method is simple and easy to implement, suitable for large-scale manual production, and the weld joint has good strength and durability. However, most of the above-mentioned technical solutions require manual labor, and the welding accuracy fluctuates due to individual experience, resulting in significant differences in product quality.

[0005] Chinese Patent CN211690804U discloses a practical device for welding and installing anchor bolts in steel structure workshops, relating to the field of anchor bolt welding technology. This practical device includes an upper positioning plate with bolt holes. An anchor bolt is threaded through the upper positioning plate, and a limit nut is threaded onto the surface of the anchor bolt above the upper positioning plate. Lower welding support frames are threaded through the four corners of the upper positioning plate. This practical device for welding and installing anchor bolts in steel structure workshops, through the coordinated use of the upper positioning plate, lower welding support frames, transverse external fixing rods, and longitudinal external fixing rods, has a simple structure, is convenient and reliable to use, saves construction time while reducing costs, and improves welding efficiency while ensuring construction quality.

[0006] However, since the above technical solutions also cannot achieve automated continuous production processes, nor can they solve the problem of synchronous control of the blade installation and welding processes in the self-expanding bottom anchor bolt blade welding process, the production efficiency is still low. Furthermore, when switching the blade slot, the anchor bolt must be rotated at the index value while ensuring positioning and fixing accuracy. Existing fixing devices cannot meet the requirements, and circular clamps are prone to slippage. Summary of the Invention

[0007] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the invention.

[0008] In view of the problems existing in the prior art, the present invention is proposed.

[0009] To solve the above technical problems, the present invention provides the following technical solution: an automatic welding device for self-expanding anchor bolts, including a worktable; a bearing assembly including a sleeve, wherein an anchor bolt is movably provided on the inner wall of the sleeve, one end of the anchor bolt is provided with a groove end, and a blade is movably provided on the groove end;

[0010] The positioning assembly includes a positioning core coaxially disposed with respect to the cutter groove end, which limits the positioning core when it slides into the cutter groove end. A ball bearing is also provided inside the sleeve, which positions the anchor bolt after it enters.

[0011] The indexing rotary assembly includes a turntable, which drives the anchor bolt to rotate when it rotates. The turntable rotates intermittently according to a fixed angle value, which is set according to the number of blades installed on the cutter end.

[0012] The welding assembly includes two robotic arms, each equipped with a welding torch and a mounting claw. After the turntable rotates to a set angle value each time, the welding torch welds the blade at that angle on the end of the blade groove, while the mounting claw installs the blade at the next angle onto the end of the blade groove.

[0013] As a preferred embodiment of the automatic welding device for self-expanding anchor bolts described in this invention, the blade groove end is provided with at least three locking plates equally divided, the blade is a carbide blade, the side of the blade is provided with a cutting edge, the robotic arm is provided on the worktable, and the worktable is provided with at least two chucks;

[0014] The chuck located on the right side of the robotic arm has a positioning core that is driven by the cylinder to slide inward along the axis of the anchor bolt towards the end of the tool groove, while simultaneously supporting the inner wall of each locking key piece.

[0015] As a preferred embodiment of the automatic welding device for self-expanding anchor bolts described in this invention, the outer wall of the anchor bolt is provided with a limiting groove, a base is provided on the chuck located on the left side of the robotic arm, a clamp is provided on the base, a conical cavity is opened on the inner wall of the base, the sleeve is slidably disposed inside the conical cavity, and at least three buffer grooves are also circumferentially arranged on the sleeve.

[0016] As a preferred embodiment of the automatic welding device for self-expanding anchor bolts described in this invention, the inner wall of the sleeve is provided with a lifting ring, a first elastic element is provided between the lifting ring and the base, and a magnetic ring is also provided on the worktable, which reciprocates following the rotation of the turntable.

[0017] In a preferred embodiment of the automatic welding device for self-expanding anchor bolts described in this invention, a rotating seat is rotatably provided on the chuck, a drive wheel is rotatably provided on the rotating seat, an adjustment groove is provided on the drive wheel, and a slider is slidably provided on the adjustment groove.

[0018] As a preferred embodiment of the automatic welding device for self-expanding anchor bolts described in this invention, a sliding rod is movably provided inside the slider, one end of the sliding rod extends through to the outer wall of the drive wheel and is fitted with a sliding sleeve, a linkage rod is provided on the outer wall of the sliding sleeve, and the linkage rod slides through the chuck and is connected to the magnetic ring.

[0019] As a preferred embodiment of the automatic welding device for self-expanding anchor bolts described in this invention, the turntable is provided with at least three slots, one end of the turntable is provided with an indexing plate that rotates coaxially, the outer wall of the indexing plate is provided with a swing column vertically, the other end of the slide rod is provided with a ring that rotates, and the swing column is slidably provided on the inner wall of the ring.

[0020] As a preferred embodiment of the automatic welding device for self-expanding anchor bolts described in this invention, a locking post is movably provided in the slot, the locking post has a right-angled side and a beveled side, one end of the locking post is slidably disposed in the reset cylinder, and a second elastic element is provided in the reset cylinder.

[0021] As a preferred embodiment of the automatic welding device for self-expanding anchor bolts described in this invention, a lifting shaft is vertically rotatably provided on the chuck connected to the chuck, a lifting wheel is provided at one end of the lifting shaft, and a lifting plate is slidably provided on the outer wall of the lifting wheel;

[0022] The lifting ring extends outward with a lifting rod, and a hydraulic cylinder is sleeved at the end of the lifting rod. The closer the lifting rod is to the lifting wheel, the further the lifting plate is from the lifting wheel. A falling slope is provided on the indexing plate, and the lifting wheel rotates and fits against the outer wall of the falling slope.

[0023] As a preferred embodiment of the automatic welding device for self-expanding anchor bolts described in this invention, the outer wall of the anchor bolt is further provided with anti-slip texture, the slot is provided with an I-shaped groove, a magnetic pole block is slidably provided on the inner wall of one end of the I-shaped groove, an anti-slip block is slidably provided on the other end, and a magnetic pole column is provided between the magnetic pole block and the anti-slip block.

[0024] The magnetic pole block and the inner wall of the I-shaped groove are provided with a third elastic element, and the locking post connected to the indexing plate is made of magnetic material and is mutually repelled by the outer end of the magnetic pole post.

[0025] The beneficial effects of this invention are as follows: By installing and welding the blades and controlling the turntable synchronously, a continuous anchor bolt blade welding process is achieved, which improves processing efficiency. At the same time, the positioning core assists in positioning and installation, improving welding quality. The magnetic ring moves synchronously with the turntable, thereby realizing the automatic locking and unlocking process of the anchor bolt, improving welding efficiency. The fit between the anti-slip texture and the anti-slip block makes the angle rotation more precise and prevents slippage. Furthermore, the indexing value of the indexing plate is adjusted according to the anchor bolt model to meet different usage requirements and expand the application scenarios. Attached Figure Description

[0026] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein:

[0027] Figure 1 This is a schematic diagram of the automatic blade welding device for self-expanding anchor bolts in this invention.

[0028] Figure 2 This is an enlarged view of the self-expanding bottom anchor bolt structure in this invention.

[0029] Figure 3 This is a schematic diagram of the external structure of the drive wheel in this invention.

[0030] Figure 4 This is a schematic diagram of the internal mechanism of the drive wheel in this invention.

[0031] Figure 5 for Figure 4 Enlarged view of the structure of region A in the image.

[0032] Figure 6 This is a schematic diagram of the turntable structure in this invention.

[0033] Figure 7 for Figure 6 A schematic diagram of the structure of region B in the diagram.

[0034] Figure 8This is a schematic diagram of the internal structure of the sleeve in this invention.

[0035] Reference numerals: 100, sleeve; 101, anchor bolt; 102, cutter groove end; 103, blade; 1001, locking key plate; 1002, chuck; 1003, worktable; 1004, cylinder;

[0036] 200. Positioning core; 201. Ball bearing; 2001. Limiting groove; 2002. Lifting ring; 2003. Base; 2004. Buffer groove; 2005. Magnetic ring; 2006. Drive wheel; 2007. Rotating seat; 2008. Adjusting groove; 2009. Slider; 2011. Slide rod; 2012. Slide sleeve; 2013. Linkage rod; 2014. First elastic element;

[0037] 300. Turntable; 3001. Slot; 3002. Snap pin; 3003. Ring; 3004. Swing pin; 3005. Reset cylinder; 3006. Lifting shaft; 3007. Lifting wheel; 3008. Lifting plate; 3009. Lifting rod; 3011. Hydraulic cylinder; 3012. Lowering ramp; 3013. Right angle side; 3014. Hydrated side; 3022. Indexing plate;

[0038] 400, Robotic arm; 4001, Anti-slip texture; 4002, I-shaped groove; 4003, Magnetic pole block; 4004, Anti-slip block; 4005, Magnetic pole post; 4006, Third elastic element. Detailed Implementation

[0039] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0040] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0041] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that is mutually exclusive with other embodiments.

[0042] Example 1

[0043] Reference Figures 1 to 8This is the first embodiment of the present invention. This embodiment provides an automatic welding device for self-expanding anchor bolt blades, including a bearing assembly, a positioning assembly, an indexing rotation assembly, and a welding assembly. The blade installation and welding are synchronously controlled by the turntable 300 to realize a continuous anchor bolt blade welding process, which improves processing efficiency. At the same time, the positioning core 200 performs auxiliary positioning installation, which improves welding quality.

[0044] Specifically, it includes: a workbench 1003; a bearing assembly including a sleeve 100, wherein an anchor bolt 101 is movably provided on the inner wall of the sleeve 100, one end of the anchor bolt 101 is provided with a groove end 102, and a blade 103 is movably provided on the groove end 102;

[0045] The positioning assembly includes a positioning core 200 coaxially disposed with the cutter end 102. When the positioning core 200 slides into the cutter end 102, it limits its movement. The sleeve 100 is also provided with a ball bearing 201, which positions the anchor bolt 101 after it enters.

[0046] The indexing rotary assembly includes a turntable 300. When the turntable 300 rotates, it drives the anchor bolt 101 to rotate. The turntable 300 rotates intermittently according to a fixed angle value, which is set according to the number of blades 103 installed on the cutter end 102.

[0047] The welding assembly includes two robotic arms 400, each equipped with a welding torch and a mounting claw. After the turntable 300 rotates to a set angle value, the welding torch welds the blade 103 at that angle on the blade groove end 102, while the mounting claw installs the blade 103 at the next angle onto the blade groove end 102.

[0048] The blade groove end 102 is provided with at least three locking key pieces 1001, the blade 103 is a carbide blade, the blade 103 is provided with a cutting edge on its side, the robotic arm 400 is provided on the worktable 1003, and the worktable 1003 is provided with at least two chucks 1002.

[0049] A cylinder 1004 is provided on the chuck 1002 located on the right side of the robotic arm 400. The positioning core 200 is driven by the cylinder 1004 to slide inward along the axis of the anchor bolt 101 into the slot end 102, while supporting the inner wall of each locking key piece 1001.

[0050] Among them, the locking key plate 1001 can be divided into 3, 6, 9, etc. The larger the diameter of the anchor bolt 101, the more blades 103 need to be welded to ensure the bottom expansion effect. After the blade is installed in the blade groove end 102, the blade is pressed by the spring claw for auxiliary fixation and support to prevent the anchor bolt 101 from being misaligned when rotating, which would affect the welding accuracy.

[0051] More preferably, the positioning core 200 is a frustum-shaped plug. As the positioning core 200 is inserted into the cutter groove end 102 along its axis, it supports the inner wall of each locking key piece 1001. On the one hand, it assists in positioning the installation of the blade 103 to ensure the installation depth of the blade 103. On the other hand, it prevents the locking key piece 1001 from overheating and deforming during welding, thereby improving product quality.

[0052] Preferably, the blade 103 is placed in a vibrating feeder, and the vibrating feeder feeds the blades 103 one by one when it vibrates. The mounting claw picks them up one by one and installs them into the blade groove end 102.

[0053] In this embodiment, single-point welding is used to weld and fix the blade 103. The liquid flux and welding wire are both set in relation to the frequency of the rotation of the turntable 300 to achieve automated electric welding. When a certain point is welded, the turntable 300 rotates and drives the anchor bolt 101 to rotate to a new blade 103 for repeated electric welding. At the same time, the mounting claw installs the next blade 103 until the turntable 300 rotates a full circle to complete the welding process.

[0054] Example 2

[0055] Reference Figures 1 to 8 This is the second embodiment of the present invention. This embodiment is based on the previous embodiment, but the difference is that the magnetic ring 2005 moves synchronously with the turntable 300, thereby realizing the automatic locking and unlocking process of the anchor bolt 101 and improving welding efficiency.

[0056] Specifically, the anchor bolt 101 has a limiting groove 2001 on its outer wall, and a base 2003 is provided on the chuck 1002 located on the left side of the robotic arm 400. The base 2003 is provided with a clamp, and a conical cavity is opened on the inner wall of the base 2003. The sleeve 100 is slidably disposed inside the conical cavity, and at least three buffer grooves 2004 are also arranged in a circumferential array on the sleeve 100.

[0057] The ball bearing 201 is slidably disposed on the inner wall of the buffer groove 2004, and the sleeve 100 is also a conical hollow shell. The buffer groove 2004 is waist-shaped and arranged in the vertical direction. The other end of each ball bearing 201 is in contact with and fits against the outer wall of the anchor bolt 101. The ball bearing 201 can roll along the buffer groove 2004 to the upper end of the sleeve 100, and as it rolls upward, it is locked after rolling into the limiting groove 2001 and cannot move up or down. The distance between each ball bearing 201 increases, and the corresponding diameter of the anchor bolt 101 that can be accommodated also increases.

[0058] The sleeve 100 has a lifting ring 2002 slidably mounted on its inner wall. A first elastic element 2014 is provided between the lifting ring 2002 and the base 2003. A magnetic ring 2005 is also slidably mounted on the worktable 1003. The magnetic ring 2005 reciprocates as the turntable 300 rotates.

[0059] In this configuration, the first elastic element 2014 is in a compressed state and pushes the lifting ring 2002 to always be in contact with the upper surface of the ball 201. The lifting ring 2002 and the ball 201 are made of hollow metal. The magnetic ring 2005 is a strong magnetic ring. When the turntable 300 starts to rotate from the initial state, the magnetic ring 2005 moves away from the lifting ring 2002 and the ball 201. After the turntable 300 has rotated a full circle, the magnetic ring 2005 attracts the lifting ring 2002 and the ball 201.

[0060] More preferably, the chuck 1002 is rotatably provided with a rotating seat 2007, the rotating seat 2007 is rotatably provided with a drive wheel 2006, the drive wheel 2006 is provided with an adjustment groove 2008, and the adjustment groove 2008 is slidably provided with a slider 2009.

[0061] The slider 2009 is provided with a sliding rod 2011, one end of which extends through the outer wall of the drive wheel 2006 and is fitted with a sliding sleeve 2012. The outer wall of the sliding sleeve 2012 is provided with a linkage rod 2013, which slides through the chuck 1002 and is connected to the magnetic ring 2005.

[0062] Furthermore, the sliding sleeve 2012 is an waist-shaped frame, and the sliding sleeve 2012 is vertically set up. When the sliding rod 2011 rotates with the drive wheel 2006, it drives the sliding sleeve 2012 to move left and right, thereby causing the magnetic ring 2005 to reciprocate with the drive wheel 2006.

[0063] Even better, when the diameter of the anchor bolt 101 being welded is larger, the distance that pushes the ball 201 to roll along the buffer groove 2004 is longer, thereby making the height of the ball 201 when locked in the limiting groove 2001 higher, and the height of the lifting ring 2002 higher.

[0064] In summary, during use, the anchor bolt 101 slides along the axis and enters the sleeve 100 via the base 2003 on the chuck 1002. Then, it pushes each ball 201 to roll upward synchronously along the buffer groove 2004 until the ball 201 enters the limiting groove 2001 and is locked therein. At the same time, the lifting ring 2002 slides downward under the push of the first elastic element 2014 to fit against the ball 201, preventing the ball 201 from continuing to slide upward. Meanwhile, when the anchor bolt 101 slides back, it is squeezed and fitted by each ball 201, preventing the anchor bolt 101 from moving, thus achieving the fixed limiting of the anchor bolt 101.

[0065] Meanwhile, as the turntable 300 rotates under the drive wheel 2006, the slide bar 2011 moves up and down on the slide sleeve 2012, causing the slide sleeve 2012 to move left and right. This causes the magnetic ring 2005 to reciprocate left and right following the drive wheel 2006. After the turntable 300 completes one full rotation, the magnetic force of the magnetic ring 2005 attracts the lifting ring 2002 and the ball bearing 201 to move upward together, thereby releasing the fixed limit on the anchor bolt 101. The robot then removes the anchor bolt 101, and the next anchor bolt 101 slides along the axis into the chuck 1002, realizing a cyclic welding process, improving production efficiency and intelligence, and optimizing the workflow.

[0066] Example 3

[0067] Reference Figures 1-8 This is the third embodiment of the present invention, which is based on the previous embodiment and makes exemplary improvements to the technical solution of the previous embodiment.

[0068] For example, the moving height of the lifting ring 2002 is associated with its corresponding hydraulic cylinder 3011. The higher the lifting ring 2002 is, the greater the oil pressure in the hydraulic cylinder 3011. The oil pressure is then associated with the clamping force of the clamp. The clamp is driven by the hydraulic cylinder 3011 to clamp the outer wall of the anchor bolt 101. As the lifting ring 2002 moves upward with the ball 201, the clamping force gradually increases until the ball 201 enters the limiting groove 2001. Therefore, the larger the outer diameter of the anchor bolt 101, the greater the clamping force.

[0069] Considering that anchor bolt 101 is generally circular, a circular tooling fixture is used for this fixture.

[0070] Similarly, in this embodiment, the smaller the diameter of the anchor bolt 101 and the lower the height of the lifting ring 2002, the greater the magnetic force required to attract the lifting ring 2002 and the ball bearing 201. At this time, the lower the oil pressure inside the lifting ring 2002, the oil circuit is connected to the rotating seat 2007 through the rotary joint, thereby connecting to the oil cylinder inside the drive wheel 2006. The oil cylinder pushes the slider 2009 to slide along the adjusting groove 2008 toward the outer wall of the lifting ring 2002, thereby increasing the rotation radius of the slide rod 2011 on the slider 2009, increasing the maximum reciprocating stroke of the magnetic ring 2005, and improving the attraction force on the lifting ring 2002 and the ball bearing 201.

[0071] It should be noted that in other embodiments, the movement amplitude of the lifting ring 2002 can be monitored in real time by a displacement sensor and a corresponding signal can be generated. The clamp adjusts the clamping force according to the signal strength, the slider 2009 adjusts the sliding distance according to the signal strength, and finally adjusts the maximum suction force. In the end, anchor bolts 101 of different models and diameters can be clamped and fixed, and the clamping force is adaptively adjusted. The stroke of the magnetic ring 2005 is automatically adjusted, and the magnetic attraction force is also automatically adjusted.

[0072] Example 4

[0073] Reference Figures 1-8 This is the fourth embodiment of the present invention. This embodiment is based on the second embodiment. The difference is that the anti-slip texture and the anti-slip block 4004 are fitted together to make the angle rotation more precise and prevent slippage. In addition, the graduation value of the indexing plate 3022 is adjusted according to the anchor bolt model to meet different usage requirements and expand the usage scenarios.

[0074] Specifically, the turntable 300 has at least three slots 3001, and a dividing plate 3022 is rotatably provided on one end of the turntable 300. A swing column 3004 is vertically provided on the outer wall of the dividing plate 3022, and a ring 3003 is rotatably provided on the other end of the slide rod 2011. The swing column 3004 is slidably provided on the inner wall of the ring 3003.

[0075] The number of slots 3001 can be set to 3, 4, 6, 8, 9, 10, 12, 16, or 36. When the number of slots 3001 is 36, the angle of the turntable 300's intermittent rotation is 10°. Alternatively, by controlling the rotation of two slots 3001 each time, the intermittent rotation angle can be 20°. The configuration is adapted to the diameter of the anchor bolt 101. The larger the diameter, the more welding blades are required to improve the self-expanding effect.

[0076] Furthermore, a locking post 3002 is movably provided in the slot 3001. The locking post 3002 is provided with a right-angled side 3013 and a hypotenuse 3014. One end of the locking post 3002 is slidably disposed in the reset cylinder 3005. The reset cylinder 3005 is provided with a second elastic element.

[0077] The second elastic element is a spring, which constantly pushes the locking post 3002 downward to slide into the slot 3001. The inclined side 3014 is at a 45° angle, and the locking post 3002 can slide out of the slot 3001 through the inclined side 3014 and engage with the inner wall of the slot 3001 through the right-angled side 3013.

[0078] The reset cylinder 3005 and the chuck 3002 are provided in two in a circular array. One reset cylinder 3005 is fixedly connected to the indexing plate 3022, and the other reset cylinder 3005 is fixedly connected to the chuck 1002.

[0079] Preferably, a lifting shaft 3006 is vertically rotatably provided on the chuck 3002 connected to the chuck 1002, and a lifting wheel 3007 is provided at one end of the lifting shaft 3006. A lifting plate 3008 is slidably provided on the outer wall of the lifting wheel 3007.

[0080] More preferably, the lifting ring 2002 has a lifting rod 3009 that slides outward, and a hydraulic cylinder 3011 is sleeved at the end of the lifting rod 3009. The closer the lifting rod 3009 is to the lifting wheel 3007, the further the lifting plate 3008 is from the lifting wheel 3007. The indexing plate 3022 is provided with a falling slope 3012, and the lifting wheel 3007 is rotatably attached to the outer wall of the falling slope 3012.

[0081] Among them, the descent slope 3012 is a broken slope, and the closer it is to the center, the closer it is to the center of the scale plate 3022.

[0082] Preferably, the outer wall of the anchor bolt 101 is also provided with anti-slip texture 4001, the slot 3001 is provided with an I-shaped groove 4002, a magnetic pole block 4003 is slidably provided on the inner wall of one end of the I-shaped groove 4002, and an anti-slip block 4004 is slidably provided on the other end, and a magnetic pole post 4005 is provided between the magnetic pole block 4003 and the anti-slip block 4004;

[0083] The magnetic pole block 4003 and the inner wall of the I-shaped groove 4002 are provided with a third elastic element 4006. The locking post 3002 connected to the indexing plate 3022 is made of magnetic material and is mutually repelled by the outer end of the magnetic pole post 4005.

[0084] In summary, during use, as the slide bar 2011 drives the indexing plate 3022 to reciprocate through the ring 3003, in the initial state, the lifting wheel 3007 is located at the higher part of the descending slope 3012. The lifting shaft 3006 is at a higher height, causing the locking pin 3002 to disengage from the slot 3001. At this time, only the locking pin 3002 connected to the indexing plate 3022 is connected to the slot 3001. The right-angled edge 3013 drives the turntable 300 to rotate, and the magnetic pole post 4005 is pushed downward by the repulsive magnetic force. Finally, the anti-slip block 4004 and the anti-slip texture 4001 are engaged to prevent slippage during rotation from affecting the welding accuracy of the blade. When the locking pin 3002 reaches the maximum swing amplitude with the indexing plate 3022, it slides in the opposite direction. At this time, the inclined edge 3014 contacts the slot 3001 and does not drive the turntable 300 to move.

[0085] At the same time, the lifting wheel 3007 moves to the lower part of the descending slope 3012, causing the locking post 3002 to fall into the locking groove 3001, preventing the indexing plate 3022 from rotating back and driving the turntable 300 to rotate. At this time, the lifting wheel 3007 rolls upward along the descending slope 3012, so that the locking post 3002 slowly disengages from the locking groove 3001. The lifting wheel 3007 reaches the highest point of the descending slope 3012 again, thus realizing the reciprocating cycle and realizing the intermittent indexing welding process of the anchor bolt 101. At the same time, the anti-slip block 4004 and the anti-slip texture 4001 are engaged to ensure the accuracy of the rotation angle and improve the welding accuracy of the blade.

[0086] Example 5

[0087] Reference Figures 1-8 This is the fifth embodiment of the present invention, which is based on embodiment 4. In this embodiment, the telescopic end of the hydraulic cylinder 3011 is magnetically attracted so that the lifting shaft 3006 extends and retracts synchronously with it without affecting the movement of the lifting shaft 3006 itself. There are two hydraulic cylinders 3011, which extend or retract with the movement of the lifting rod 3009. The two hydraulic cylinders 3011 can be directly driven by the telescopic end or indirectly driven by the hydraulic oil pipe.

[0088] For example, in other embodiments, the hydraulic cylinder 3011 drives the lifting shaft 3006 to move outward. The lifting shaft 3006 is filled with hydraulic oil. When compressed, it pushes each lifting plate 3008 to extend outward, thereby raising the initial position of the locking pin 3002. The distance that the locking pin 3002 needs to travel on the falling slope 3012 to fall into the locking slot 3001 increases, thereby allowing the indexing plate 3022 to rotate at a larger angle. At the same time, the hydraulic oil is connected to the rotating seat 2007 and pushes the slider 2009 to move outward, increasing the rotation stroke of the indexing plate 3022. At the same time, the limiting angle range of the locking pin 3002 increases, realizing the adjustment of the angle range value of the turntable 300, and finally realizing the adjustment of the blade welding index value.

[0089] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape and proportion of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise changed, and the nature or number or position of discrete elements may be altered or changed. Therefore, all such modifications are intended to be included within the scope of the invention. The order or sequence of any process or method steps may be changed or rearranged according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structurally equivalent but also equivalent in structure. Other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments without departing from the scope of the invention. Therefore, the present invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0090] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the invention as currently considered, or those features that are not relevant to implementing the invention) may be omitted.

[0091] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those skilled in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0092] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. An automatic welding device for self-expanding anchor bolts using blades, characterized in that: include: Workbench (1003); The load-bearing assembly includes a sleeve (100), an anchor bolt (101) is movably provided on the inner wall of the sleeve (100), a grooving end (102) is provided at one end of the anchor bolt (101), and a blade (103) is movably provided on the grooving end (102). The positioning assembly includes a positioning core (200) coaxially disposed with the cutting groove end (102). When the positioning core (200) slides into the cutting groove end (102), it limits its movement. The sleeve (100) is also provided with a ball (201), which positions the anchor bolt (101) after it enters. The indexing rotary assembly includes a turntable (300), which drives the anchor bolt (101) to rotate when the turntable (300) rotates. The turntable (300) rotates intermittently according to a fixed angle value, which is set according to the number of blades (103) installed on the cutter end (102). The welding assembly includes two robotic arms (400), each equipped with a welding torch and a mounting claw. After the turntable (300) rotates by a set angle value each time, the welding torch welds the blade (103) at the blade groove end (102), while the mounting claw installs the blade (103) at the next angle onto the blade groove end (102). The worktable (1003) is provided with at least two chucks (1002). The anchor bolt (101) has a limiting groove (2001) on its outer wall. The chuck (1002) located on the left side of the robotic arm (400) has a base (2003). The base (2003) has a clamp. The inner wall of the base (2003) has a conical cavity. The sleeve (100) is slidably disposed inside the conical cavity. The sleeve (100) also has at least three buffer grooves (2004) arranged in a circular array. A lifting ring (2002) is slidably provided on the inner wall of the sleeve (100), and a first elastic element (2014) is provided between the lifting ring (2002) and the base (2003). A magnetic ring (2005) is also slidably provided on the worktable (1003), and the magnetic ring (2005) reciprocates as the turntable (300) rotates. The chuck (1002) is rotatably provided with a rotating seat (2007), the rotating seat (2007) is rotatably provided with a drive wheel (2006), the drive wheel (2006) is provided with an adjustment groove (2008), and a slider (2009) is slidably provided on the adjustment groove (2008). The slider (2009) is equipped with a sliding rod (2011), one end of which extends through the outer wall of the drive wheel (2006) and is fitted with a sliding sleeve (2012). The outer wall of the sliding sleeve (2012) is provided with a linkage rod (2013), which slides through the chuck (1002) and is connected to the magnetic ring (2005).

2. The automatic welding device for self-expanding anchor bolts with blades as described in claim 1, characterized in that: The blade end (102) is provided with at least three locking key pieces (1001) evenly distributed, the blade (103) is a carbide blade, the side of the blade (103) is provided with a cutting edge, and the robotic arm (400) is provided on the worktable (1003); A cylinder (1004) is provided on the chuck (1002) located on the right side of the robotic arm (400). The positioning core (200) is driven by the cylinder (1004) to slide inward along the axis of the anchor bolt (101) towards the inside of the slot end (102), while supporting the inner wall of each locking key piece (1001).

3. The automatic welding device for self-expanding anchor bolts with blades as described in claim 2, characterized in that: The turntable (300) has at least three slots (3001). One end of the turntable (300) is coaxially rotatably provided with an indexing plate (3022). The outer wall of the indexing plate (3022) is vertically provided with a swing column (3004). The other end of the slide rod (2011) is rotatably provided with a ring (3003). The swing column (3004) is slidably provided on the inner wall of the ring (3003).

4. The automatic welding device for self-expanding anchor bolts with blades as described in claim 3, characterized in that: The slot (3001) is provided with a movable locking post (3002), the locking post (3002) is provided with a right angle side (3013) and a hypotenuse (3014), one end of the locking post (3002) is slidably disposed in the reset cylinder (3005), and the reset cylinder (3005) is provided with a second elastic element.

5. The automatic welding device for self-expanding anchor bolts with blades as described in claim 4, characterized in that: A lifting shaft (3006) is vertically rotatably provided on the chuck (1002) connected to the chuck (1002). A lifting wheel (3007) is provided at one end of the lifting shaft (3006), and a lifting plate (3008) is slidably provided on the outer wall of the lifting wheel (3007). The lifting ring (2002) extends outward with a lifting rod (3009), and a hydraulic cylinder (3011) is sleeved at the end of the lifting rod (3009). The closer the lifting rod (3009) is to the lifting wheel (3007), the further the lifting plate (3008) is from the lifting wheel (3007). A descending ramp (3012) is provided on the indexing plate (3022), and the lifting wheel (3007) rotates and fits against the outer wall of the descending ramp (3012).

6. The automatic welding device for self-expanding anchor bolts with blades as described in claim 5, characterized in that: The outer wall of the anchor bolt (101) is also provided with anti-slip texture (4001), and an I-shaped groove (4002) is opened in the slot (3001). A magnetic pole block (4003) is slidably provided on the inner wall of one end of the I-shaped groove (4002), and an anti-slip block (4004) is slidably provided on the other end. A magnetic pole post (4005) is provided between the magnetic pole block (4003) and the anti-slip block (4004). The magnetic pole block (4003) and the inner wall of the I-shaped groove (4002) are provided with a third elastic element (4006). The locking post (3002) connected to the indexing plate (3022) is made of magnetic material and is mutually repelled by the outer end of the magnetic pole post (4005).

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