A multi-angle positioning and welding device for a cutting tooth and a welding method thereof

Abstract

The present application belongs to the technical field of cutting tooth welding, and in particular to a cutting tooth multi-angle positioning welding device and a welding method thereof, comprising a welding device chassis, a welding auxiliary device, an automatic feeding structure and a feeding area support plate are fixedly installed on the upper end face of the welding device chassis, a guide rail moving device is fixedly installed on the upper end face of the feeding area support plate, and a welding and clamping structure is slidably installed on the guide rail moving device. Through the cooperation of the cutting tooth seat automatic feeding device and the cutting tooth head automatic feeding structure, the present application realizes full-automatic feeding and precise positioning of the cutting tooth seat and the cutting tooth head, greatly reduces the manual operation intensity, and significantly improves the continuity and production efficiency of the welding operation.

Description

Technical Field

[0001] This invention relates to the field of cutting tooth welding technology, specifically to a multi-angle positioning welding device for cutting teeth and its welding method. Background Technology

[0002] As a core cutting component of engineering machinery such as coal mining machines, tunneling machines, and rotary drilling rigs, the cutting pick typically consists of a pick head and a pick base, which are brazed together. In actual working conditions, the cutting pick is subjected to continuous high impact loads and severe wear. Therefore, the quality of the weld joint between the pick head and the pick base, including coaxiality, weld fullness, and bonding strength, directly determines the service life of the cutting pick and the overall working efficiency of the machine. Currently, the cutting pick welding process commonly used in the industry is still mainly based on semi-automated equipment with manual assistance. The typical process involves the operator manually placing the pick base in the welding position, then connecting the pick head dipped in brazing filler metal to the pick base, and finally completing the circumferential welding manually or with a simple robotic arm.

[0003] However, existing cutting tooth welding devices and methods have revealed numerous technical bottlenecks in practical applications. Firstly, regarding positioning accuracy, the manual connection of the cutting tooth head and base is limited by visual errors and operator skill levels, making it difficult to consistently guarantee coaxiality and a reasonable welding gap. This easily leads to post-weld skewing of the cutting tooth head or uneven weld seams, severely impacting product yield and reliability. Secondly, in terms of welding angle adaptability, existing equipment mostly supports welding operations at a single fixed angle. When facing multi-angle welding processes requiring different specifications of cutting teeth, multiple clamping or external tooling adjustments are necessary, resulting in cumbersome procedures and low repeatability, making it difficult to adapt to flexible production needs. Thirdly, regarding production efficiency, there are deficiencies in automatic cutting tooth head alignment and feeding, automatic brazing material application, and automated connection between pre- and post-welding processes, leading to a slow overall process cycle and high reliance on manual labor. Furthermore, during the brazing material dipping process, the surface of the brazing filler metal is prone to forming an oxide film and adsorbing dust and impurities at high temperatures. Existing technologies lack an online cleaning mechanism for the surface of the brazing filler metal in the dipping tray, making it very easy for impurities to be mixed into the dipped brazing filler metal, thereby forming fatal defects such as slag inclusions and porosity in the weld.

[0004] In summary, how to provide a multi-angle positioning welding device and welding method for cutting teeth that can achieve precise multi-angle positioning welding of the cutting tooth head and the cutting tooth seat, improve the level of automation of the process, and simultaneously solve the problem of cleaning impurities on the surface of the brazing filler metal has become a technical problem that urgently needs to be solved in this field. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a multi-angle positioning welding device and welding method for cutting teeth, which solves the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a multi-angle positioning welding device for cutting teeth, comprising a welding device chassis, wherein a welding auxiliary device, an automatic feeding structure and a feeding area support plate are fixedly installed on the upper end face of the welding device chassis, a guide rail moving device is fixedly installed on the upper end face of the feeding area support plate, and a welding and clamping structure is slidably installed on the guide rail moving device;

[0007] The welding auxiliary device includes an automatic feeding device for the cutting tooth seat and a brazing material pick-up point, which are fixedly installed on the upper surface of the welding device chassis.

[0008] The automatic feeding structure includes a cutting tooth head support fixedly installed on the upper end face of the welding device chassis, a cutting tooth head positioning structure fixedly installed on the upper end face of the cutting tooth head support, and a cutting tooth head conveying channel and a cylinder support fixedly installed on both sides of the cutting tooth head support respectively.

[0009] The cutting tooth conveying channel includes an outer conveying channel cutting tooth support plate and a conveyor belt fixedly installed inside the conveying channel cutting tooth support plate.

[0010] The cutting tooth head support includes a support bottom fixing plate fixedly installed on the upper end face of the welding device chassis. A fixing plate A is fixedly installed on the upper end face of the support bottom fixing plate, a fixing plate B is fixedly installed on the upper end face of the fixing plate A, and a cutting tooth head clamp installation position is fixedly installed on the upper end face of the fixing plate B.

[0011] The cutting tooth positioning structure includes a cutting tooth clamp fixedly installed on the upper end face of the cutting tooth clamp mounting position. A cutting tooth side plate is fixedly installed on the outer side of the cutting tooth clamp. A support base is fixedly installed on both the cutting tooth side plate and one side of the cutting tooth clamp. A cutting tooth positioning structure is fixedly installed on the upper end of the inner side of the cutting tooth side plate. A cylinder is fixedly installed on one side of the cutting tooth side plate and the upper end face of the support base.

[0012] The cutting tooth positioning structure includes a sliding groove fixedly installed on the inner side of the cutting tooth side plate. A cutting tooth conveying guide rail is slidably installed inside the sliding groove. One end of the cutting tooth conveying guide rail adjacent to the conveyor belt is constructed as a guide ramp. The rear section of the guide ramp extends to form a long strip-shaped cutting tooth bearing part. The length of the cutting tooth bearing part is configured to be less than the corresponding length of the cutting tooth clamp.

[0013] The upper end face of the cutting tooth head side plate is equipped with a cutting tooth anti-reverse claw. A check spring is fixedly installed between the cutting tooth anti-reverse claw and the cutting tooth head side plate. The check spring is configured to constrain the cutting tooth anti-reverse claw to rotate only in the direction of movement of the conveyor belt, and drive the cutting tooth anti-reverse claw to reset to the initial position after the external force disappears.

[0014] The side wall of the cutting tooth head side plate has a receiving cavity formed inside to accommodate the extension and retraction of the cylinder. The cylinder is fixedly connected to the cutting tooth conveying guide rail inside the receiving cavity so that the extension and retraction of the cylinder drives the cutting tooth conveying guide rail to move synchronously.

[0015] The cutting tooth head fixture is provided with five cutting tooth head installation stations, and each cutting tooth head installation station is configured in a one-to-one correspondence with the cutting tooth anti-reverse chuck.

[0016] As a preferred embodiment of the present invention, the automatic feeding device for the cutting tooth holder includes a pair of support plates fixedly installed on the upper surface of the chassis of the welding device. The upper surface of the pair of support plates is fixedly installed with a cutting tooth holder fixture placement area. A cylinder is fixedly installed on the lower surface of the cutting tooth holder fixture placement area. A sliding seat is sleeved on the lower surface of the cylinder. A sliding groove is provided inside the sliding seat. The cylinder is slidably installed in the sliding groove. A connecting plate is fixedly installed at one end of the sliding seat. A cutting tooth holder feeding push plate is also fixedly installed on the connecting plate. A plurality of cutting tooth holder fixture guide routes are provided on the upper surface of the cutting tooth holder fixture placement area. The cutting tooth holder fixture guide routes are respectively provided with a feed port and a discharge port.

[0017] The brazing material dipping area includes a brazing material dipping result and a plating impurity scraping device fixedly installed on the upper surface of the welding device chassis.

[0018] As a preferred technical solution of the present invention, the brazing material dipping result includes a dipping structure base fixedly installed on the upper end face of the welding device chassis, a dipping structure bottom fixing plate fixedly installed on the upper end face of the dipping structure base, a dipping tray shell fixedly installed on the upper end face of the dipping structure bottom fixing plate, and a dipping tray placed inside the dipping tray shell;

[0019] The impurity scraping device for the placement tray includes a guide rail mounting plate fixedly installed on the upper end face of the welding device chassis. A scraping device power structure is fixedly installed on the lower end face of the welding device chassis. The scraping device power structure passes through the guide rail mounting plate and is fixedly installed with the guide rail. A slider is slidably installed on the guide rail. A scraper fixing block is fixedly installed on one side of the slider. A lifting guide wheel is movably installed inside the scraper fixing block. A connector block is also fixedly installed on one side of the scraper fixing block. A scraper lifting structure and a scraper lowering structure are fixedly installed on the upper end face of the guide rail mounting plate. A push rod is fixedly installed on one side of the scraper lowering structure. The push rod is fixedly connected to the connector block. A scraper connecting block is also fixedly installed on one side of the scraper fixing block. A scraper is also fixedly installed on the scraper connecting block.

[0020] The vertical height of the scraper lowering structure is higher than the upper end face of the scraper raising structure; one end of the scraper raising structure adjacent to the scraper lowering structure is formed as a downward sloping surface; the side of the scraper lowering structure adjacent to the scraper raising structure is formed as an upward sloping surface; the upward sloping surface and the downward sloping surface cooperate with each other to guide the lifting guide wheel to move up and down within the scraper fixing block.

[0021] As a preferred embodiment of the present invention, the guide rail moving device includes an upper mounting plate fixedly installed and fixedly connected to the material feeding area support plate. The upper surface of the upper mounting plate is respectively fixedly installed with a guide rail power device side housing and a sliding guide rail. The guide rail power device side housing is provided with a power transmission device for driving the welding and clamping structure. A power connection device is fixedly installed at one end of the guide rail power device side housing. A power motor is also fixedly installed on one side of the power connection device to drive the power transmission device to rotate, thereby driving the welding and clamping structure.

[0022] As a preferred embodiment of the present invention, the welding and clamping structure includes a slider mounting device that is slidably mounted on the side housing of the guide rail power device and the sliding guide rail. A cutting tooth gripping device is fixedly mounted on the lower end face of the slider mounting device. A welding moving device is fixedly mounted on one side of the cutting tooth gripping device. A welding device is slidably mounted on the welding moving device.

[0023] As a preferred embodiment of the present invention, the welding device includes a vertically movable slider slidably installed inside the welding moving device. A slider connecting plate is fixedly installed on one side of the vertically movable slider, a welding head mounting plate is fixedly installed on the other side of the slider connecting plate, and a welding head fixing plate is fixedly installed on the other side of the welding head mounting plate. A rotating shaft is fixedly installed on the upper surface of the welding head fixing plate. Pulley drive structures are fixedly installed at both ends of the rotating shaft. A belt is fixedly installed on the lower side of the pulley drive structure and the outer side of the welding head fixing plate. A belt is provided between the pulley drive structure and the belt. A welding head rotation power device is fixedly installed at one end of the rotating shaft. The welding head rotation power device is also fixedly installed on a plate on the side of the welding head mounting plate. An anti-rotation deviation structure is also fixedly installed on one side of the welding head mounting plate. An anti-deviation wheel is fixedly installed on the outer side of the belt on the same side as the anti-rotation deviation structure. A welding head structure is rotatably installed inside the welding head fixing plate. The welding head structure is fixedly installed with the belt.

[0024] As a preferred embodiment of the present invention, the welding head structure includes a pair of welding head clamps fixedly installed on both sides inside the welding head fixing plate, an external welding head frame fixedly installed between the pair of welding head clamps, a welding head terminal block fixedly installed on the upper surface of the external welding head frame, and a welding head fixedly installed inside the external welding head frame.

[0025] As a preferred embodiment of the present invention, the welding moving device includes a lifting guide rail that is slidably connected to the up and down moving slider, and a welding lifting motor is fixedly installed on the upper end face of the lifting guide rail.

[0026] The slider mounting device includes a gripping device lifting power device mounting frame that is fixedly connected to the lifting guide rail.

[0027] The lifting power device of the gripping device is fixedly installed inside the mounting frame of the lifting power device of the gripping device. The lifting power device of the gripping device is fixedly connected to the lifting rod. The lower end face of the lifting rod passes through the mounting frame of the lifting power device of the gripping device and is fixedly installed with a connector. The gripping device is fixedly installed on the lower end face of the connector.

[0028] As a preferred embodiment of the present invention, a clamping claw mounting block is fixedly installed on the lower end face of the connector, a fixed clamping claw is fixedly installed on one side of the clamping claw mounting block, a movable clamping claw is slidably installed on the other side of the clamping claw mounting block, a clamping claw connecting device is fixedly installed on the upper end face of the movable clamping claw, a clamping power device is fixedly installed on the upper end face of the clamping claw connecting device, and a movable clamping claw push rod is fixedly installed inside the clamping power device.

[0029] As a preferred technical solution of the present invention, a method for multi-angle positioning and welding of cutting teeth is provided.

[0030] Step 1: Place the cutting tooth holder to be welded into the feed port of the automatic cutting tooth holder feeding device, and start the automatic cutting tooth holder feeding device to drive the cutting tooth holder to move along the cutting tooth holder clamp guide route to the welding station at the discharge port.

[0031] Step 2: Place the cutting tooth head in the cutting tooth head conveying channel, start the conveyor belt to push the cutting tooth head towards the cutting tooth head clamp, the cylinder drives the cutting tooth conveying guide rail to move and retract, and at the same time the long strip-shaped cutting tooth head bearing part of the cutting tooth conveying guide rail pushes the cutting tooth head towards the cutting tooth anti-reverse claw.

[0032] Step 3: During the pushing process, the cutting tooth head pushes the cutting tooth anti-reverse pawl to rotate in one direction. When the cutting tooth head passes the cutting tooth anti-reverse pawl, the anti-reverse spring drives the cutting tooth anti-reverse pawl to reset, so as to limit the cutting tooth head to the cutting tooth head installation position on the cutting tooth head fixture.

[0033] Step 4: Activate the power structure of the scraping device, drive the guide rail to move the scraper fixing block and scraper, and guide the lifting guide wheel to rise and fall through the inclined surface cooperation of the scraper lifting structure and the scraper lowering structure so that the scraper scrapes away the impurities on the surface of the brazing material in the dip tray;

[0034] Step 5: Activate the guide rail moving device and welding and clamping structure on the support plate of the feeding area to move the cutting tooth gripping device to the cutting tooth installation position and clamp the cutting tooth.

[0035] Step 6: Move the clamped cutting tooth to above the dipping tray where the brazing material is dipped, lower the cutting tooth so that it dips into the brazing material, and then return it to its original position;

[0036] Step 7: Move the cutting tooth head, after it has been dipped in brazing material, to the welding station and align it with the cutting tooth seat;

[0037] Step 8: Start the welding device to perform multi-angle welding at the joint between the cutting tooth head and the cutting tooth seat.

[0038] Compared with the prior art, the present invention has the following beneficial effects:

[0039] 1. This invention, through the cooperation of the automatic feeding device for the cutting tooth holder and the automatic feeding structure for the cutting tooth head, realizes fully automated feeding and precise positioning of the cutting tooth holder and the cutting tooth head, which greatly reduces the intensity of manual operation and significantly improves the continuity and production efficiency of welding operations.

[0040] 2. This invention, by setting a check spring and a one-way rotational engagement between the anti-reverse spring and the anti-reverse claw of the cutting tooth, ensures that the anti-reverse claw of the cutting tooth can only move in the direction of the conveyor belt and automatically resets after the external force disappears, effectively preventing the cutting tooth head from retracting and stacking during the conveying process, and improving the continuity and stability of feeding.

[0041] 3. This invention sets up a tooth-carrying guide rail in the sliding groove that is fixedly connected to the cylinder, and makes the end of the tooth-carrying guide rail a guide slope surface with its bearing part length being less than the length of the tooth-head clamp. This allows the cylinder to precisely separate a single tooth head to the installation position by telescopic movement, reducing manual intervention.

[0042] 4. This invention, by setting a cooperative inclined surface between the scraper lifting structure and the scraper lowering structure, guides the lifting guide wheel to automatically rise and fall within the scraper fixing block, enabling the scraper to periodically remove impurities from the surface of the dipping tray, avoiding contamination of the brazing material and ensuring the uniformity of the dipping layer.

[0043] 5. This invention, by setting up an anti-rotation deviation structure and an anti-deviation wheel to work together on the pulley transmission structure and the transmission belt, constrains the radial movement trajectory of the welding head during high-speed rotation, effectively reducing the radial offset of the welding head and improving the accuracy of welding positioning. Attached Figure Description

[0044] Figure 1 This is a perspective view of the present invention;

[0045] Figure 2 This is a schematic diagram of a welding auxiliary device;

[0046] Figure 3 Schematic diagram of automatic feeding device for cutting tooth holder;

[0047] Figure 4 This is a schematic diagram of the area where brazing material is applied.

[0048] Figure 5 This is a schematic diagram of the area where brazing material is applied.

[0049] Figure 6 for Figure 5 Enlarged view of point A;

[0050] Figure 7 Diagram of the guide rail moving device;

[0051] Figure 8 This is a schematic diagram of the welding and clamping structure;

[0052] Figure 9 This is a schematic diagram of the welding equipment;

[0053] Figure 10 for Figure 9 Enlarged view of point B;

[0054] Figure 11 This is a schematic diagram of the welding moving device;

[0055] Figure 12 for Figure 11 Enlarged view of point C;

[0056] Figure 13 This is a schematic diagram of an automatic feeding structure;

[0057] Figure 14 This is a schematic diagram of the cutting tooth head conveying channel;

[0058] Figure 15 This is a schematic diagram of the cutting tooth head support base;

[0059] Figure 16 This is a schematic diagram of the positioning structure for the cutting tooth head;

[0060] Figure 17 for Figure 16 Enlarged view of point D.

[0061] In the picture:

[0062] 1. Support plate for the feeding area; 2. Base plate for the welding device;

[0063] 3. Guide rail moving device; 31. Guide rail power unit side housing; 32. Power connection device; 33. Power motor; 34. Sliding guide rail; 35. Power transmission device; 36. Upper mounting plate;

[0064] 4. Welding and clamping structure; 44. Cutting tooth head gripping device;

[0065] 41. Welding device; 411. Welding head rotation power device; 412. Up and down moving slider; 413. Slider connecting plate; 414. Welding head mounting plate; 415. Rotating shaft; 416. Pulley drive structure; 4161. Belt; 417. Welding head fixing plate; 418. Anti-rotation deviation structure; 419. Anti-deviation wheel;

[0066] 410. Welding head structure; 4101. Welding head clamp; 4102. Welding head is an external frame; 4103. Welding head terminals; 4104. Welding head;

[0067] 42. Welding moving device; 421. Welding lifting motor; 422. Lifting guide rail; 423. Lifting power unit for gripping device; 4231. Lifting rod; 4232. Connector;

[0068] 424. Gripping device; 4241. Clamping power device; 4242. Fixed clamping jaw; 4243. Movable clamping jaw; 4244. Clamping jaw connecting device; 4245. Clamping jaw mounting block;

[0069] 43. Slider mounting device; 431. Slider mounting plate; 432. Guide slider; 433. Power slider;

[0070] 441. Mounting frame for the lifting power unit of the gripping device;

[0071] 5. Automatic feeding structure; 51. Cutting tooth head conveying channel; 511. Conveying channel cutting tooth head support plate; 512. Conveyor belt;

[0072] 52. Cylinder support; 521. Cylinder; 522. Support;

[0073] 53. Cutting tooth head positioning structure; 531. Cutting tooth head clamp; 533. Cutting tooth head side plate;

[0074] 532. Cutting tooth head positioning structure; 5321. Sliding groove; 5322. Cutting tooth anti-reverse claw; 5323. Cutting tooth conveying guide rail; 5324. Anti-reverse spring;

[0075] 54. Cutting tooth head support base; 541. Bottom fixing plate of support base; 542. Fixing plate A; 543. Fixing plate B; 544. Installation position of cutting tooth head clamp;

[0076] 6. Welding auxiliary equipment;

[0077] 61. Automatic feeding device for cutting tooth holder; 610. Discharge port; 611. Feeding push plate for cutting tooth holder; 612. Sliding seat; 613. Connecting plate; 614. Cylinder; 615. Slide groove; 616. Support plate; 617. Discharge push rod for cutting tooth holder; 618. Fixture placement area for cutting tooth holder; 619. Feed port;

[0078] 62. Area where brazing material is applied;

[0079] 621. Results of brazing material application; 6211. Outer shell of the application tray; 6212. Application tray; 6213. Bottom fixing plate of the application structure; 6214. Base of the application structure;

[0080] 622. Impurity scraping device for placement tray; 6221. Push rod; 6222. Guide rail mounting plate; 6223. Power structure of scraping device; 6224. Guide rail; 6225. Scraper lifting structure; 6226. Scraper lowering structure; 6227. Slider; 6228. Connector; 6229. Scraper fixing block; 6220. Connector connecting block; 62201. Scraper; 62202. Scraper connecting block; 62203. Lifting guide wheel. Detailed Implementation

[0081] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0082] Example

[0083] Please see Figure 1-17 The present invention provides the following technical solution: a multi-angle positioning welding device for cutting teeth, including a welding device chassis 2, a welding auxiliary device 6, an automatic feeding structure 5 and a feeding area support plate 1 are fixedly installed on the upper end face of the welding device chassis 2, a guide rail moving device 3 is fixedly installed on the upper end face of the feeding area support plate 1, and a welding and clamping structure 4 is slidably installed on the guide rail moving device 3.

[0084] Welding auxiliary device 6 includes an automatic feeding device 61 for cutting tooth seat and a brazing material pick-up point 62, which are fixedly installed on the upper surface of the welding device chassis 2.

[0085] The automatic feeding structure 5 includes a cutting tooth head support 54 fixedly installed on the upper end face of the welding device chassis 2. A cutting tooth head positioning structure 53 is fixedly installed on the upper end face of the cutting tooth head support 54. A cutting tooth head conveying channel 51 and a cylinder support 52 are fixedly installed on both sides of the cutting tooth head support 54, respectively.

[0086] The cutting tooth conveying channel 51 includes an outer conveying channel cutting tooth support plate 511 and a conveyor belt 512 fixedly installed inside the conveying channel cutting tooth support plate 511.

[0087] The cutting tooth head support base 54 includes a support base bottom fixing plate 541 fixedly installed on the upper end face of the welding device chassis 2, a fixing plate A542 fixedly installed on the upper end face of the support base bottom fixing plate 541, a fixing plate B543 fixedly installed on the upper end face of the fixing plate A542, and a cutting tooth head clamp installation position 544 fixedly installed on the upper end face of the fixing plate B543.

[0088] The cutting tooth positioning structure 53 includes a cutting tooth clamp 531 fixedly installed on the upper end face of the cutting tooth clamp mounting position 544. A cutting tooth side plate 533 is fixedly installed on the outer side of the cutting tooth clamp 531. A support base 522 is fixedly installed on both the cutting tooth side plate 533 and one side of the cutting tooth clamp 531. The cutting tooth positioning structure 532 is fixedly installed on the upper end of the inner side of the cutting tooth side plate 533. A cylinder 521 is fixedly installed on one side of the cutting tooth side plate 533 and the upper end face of the support base 522.

[0089] The cutting tooth head positioning structure 532 includes a sliding groove 5321 fixedly installed on the inner side of the cutting tooth head side plate 533. A cutting tooth conveying guide rail 5323 is slidably installed inside the sliding groove 5321. One end of the cutting tooth conveying guide rail 5323 adjacent to the conveyor belt 512 is constructed as a guide slope. The rear section of the guide slope extends to form a long strip-shaped cutting tooth head bearing part. The length of the cutting tooth head bearing part is configured to be less than the corresponding length of the cutting tooth head clamp 531.

[0090] A cutting tooth anti-reverse claw 5322 is installed on the upper end face of the cutting tooth head side plate 533. A check spring 5324 is fixedly installed between the cutting tooth anti-reverse claw 5322 and the cutting tooth head side plate 533. The check spring 5324 is configured to restrict the cutting tooth anti-reverse claw 5322 to rotate only in one direction in the direction of movement of the conveyor belt 512, and drive the cutting tooth anti-reverse claw 5322 to return to the initial position after the external force disappears.

[0091] The side wall of the cutting head side plate 533 has a cavity for accommodating the telescopic movement of the cylinder 521. The cylinder 521 is fixedly connected to the cutting tooth conveying guide rail 5323 in the cavity so that the telescopic movement of the cylinder 521 drives the cutting tooth conveying guide rail 5323 to move synchronously.

[0092] The cutting tooth head fixture 531 is equipped with five cutting tooth head installation stations, and each cutting tooth head installation station is set up in a one-to-one correspondence with the cutting tooth anti-reverse chuck 5322.

[0093] In this implementation plan, the welding device chassis 2 serves as the basic support platform for the entire machine. The upper surface of the chassis is fixedly mounted with a welding auxiliary device 6, an automatic feeding structure 5, and a feeding area support plate 1 by bolts. A guide rail moving device 3 is fixedly mounted on the feeding area support plate 1 by bolts. A welding and clamping structure 4 is slidably mounted on the guide rail moving device 3. This forms a complete automated operation layout in which the welding auxiliary device 6 completes the feeding of the cutting tooth holder and the preparation of the brazing filler metal, the automatic feeding structure 5 completes the conveying and positioning of the cutting tooth head, and the guide rail moving device 3 and the welding and clamping structure 4 work together to complete the gripping, brazing, and multi-angle welding of the cutting tooth head.

[0094] Specifically, the automatic feeding device 61 for cutting teeth includes a pair of support plates 616 fixedly installed on the upper surface of the welding device chassis 2. The upper surfaces of the pair of support plates 616 are jointly fixedly installed with a cutting teeth fixture placement area 618. A cylinder 614 is fixedly installed on the lower surface of the cutting teeth fixture placement area 618. A sliding seat 612 is sleeved on the lower surface of the cylinder 614. A sliding groove 615 is provided inside the sliding seat 612. The cylinder 614 is slidably installed in the sliding groove 615. A connecting plate 613 is fixedly installed at one end of the sliding seat 612. A cutting teeth feeding push plate 611 is also fixedly installed on the connecting plate 613. A plurality of cutting teeth fixture guide routes are provided on the upper surface of the cutting teeth fixture placement area 618. The cutting teeth fixture guide routes are respectively provided with a feed port 619 and a discharge port 610.

[0095] The brazing material dipping area 62 includes a brazing material dipping result 621 fixedly installed on the upper end face of the welding device chassis 2 and a placement tray impurity scraping device 622.

[0096] In this embodiment, the automatic feeding device 61 for cutting teeth is fixed to the upper surface of the welding device chassis 2 by a pair of support plates 616. The cutting teeth fixture placement 618 is fixed to the upper surface of the pair of support plates 616 to accommodate the cutting teeth to be welded. The cylinder 614 is fixed to the lower surface of the cutting teeth fixture placement 618 and its piston rod is sleeved in the sliding seat 612. The sliding seat 612 slides with the outer wall of the cylinder 614 through the sliding groove 615 and drives the cutting teeth feeding push plate 611 to reciprocate along the cutting teeth fixture guide route through the connecting plate 613, thereby pushing the cutting teeth placed at the feed port 619 to the welding station at the discharge port 610 along the guide route, realizing the directional and orderly feeding of the cutting teeth.

[0097] Specifically, the brazing material dipping result 621 includes a dipping structure base 6214 fixedly installed on the upper end face of the welding device chassis 2, a dipping structure bottom fixing plate 6213 fixedly installed on the upper end face of the dipping structure base 6214, a dipping tray shell 6211 fixedly installed on the upper end face of the dipping structure bottom fixing plate 6213, and a dipping tray 6212 placed inside the dipping tray shell 6211;

[0098] The impurity scraping device 622 includes a guide rail mounting plate 6222 fixedly installed on the upper end face of the welding device chassis 2. A scraping device power structure 6223 is fixedly installed on the lower end face of the welding device chassis 2. The scraping device power structure 6223 passes through the guide rail mounting plate 6222 and is fixedly installed on the guide rail 6224. A slider 6227 is slidably installed on the guide rail 6224. A scraper fixing block 6229 is fixedly installed on one side of the slider 6227. A lifting guide wheel 62 is movably installed inside the scraper fixing block 6229. 203, a connecting head block 6220 is also fixedly installed on one side of the scraper fixing block 6229, a scraper lifting structure 6225 and a scraper lowering structure 6226 are fixedly installed on the upper end face of the guide rail mounting plate 6222, a push rod 6221 is fixedly installed on one side of the scraper lowering structure 6226, the push rod 6221 is fixedly connected to the connecting head block 6220, a scraper connecting block 62202 is also fixedly installed on one side of the scraper fixing block 6229, and a scraper 62201 is also fixedly installed on the scraper connecting block 62202;

[0099] The vertical height of the scraper lowering structure 6226 is higher than the upper end face of the scraper raising structure 6225; the end of the scraper raising structure 6225 adjacent to the scraper lowering structure 6226 is formed as a downward sloping surface; the side of the scraper lowering structure 6226 adjacent to the scraper raising structure 6225 is formed as an upward sloping surface; the upward sloping surface and the downward sloping surface cooperate with each other to guide the lifting guide wheel 62203 to move up and down within the scraper fixing block 6229.

[0100] In this embodiment, the brazing material dipping point 62 stably supports the dipping tray shell 6211 and the dipping tray 6212 on the welding device chassis 2 through the dipping structure base 6214 and the bottom fixing plate 6213 of the dipping structure, providing a work position for the cutting tooth to dip the brazing material. At the same time, the power structure 6223 of the scraping device in the tray impurity scraping device 622 drives the guide rail 6224 to rotate and drive the slider 6227 and the scraper fixing block 6229 to move back and forth along the guide rail mounting plate 6222. The lifting guide wheel 62203 on the scraper fixing block 6229 drives the scraper 62201 to rise and fall periodically under the guidance of the inclined surface cooperation of the scraper lifting structure 6225 and the scraper lowering structure 6226, so that the scraper 62201 scrapes off the oxide layer and impurities on the surface of the dipping tray 6212, ensuring that the brazing material dipped by the cutting tooth is uniform and clean, thereby improving the quality of the welded joint.

[0101] Specifically, the guide rail moving device 3 includes an upper mounting plate 36 that is fixedly installed and fixedly connected to the material feeding area support plate 1. The upper end face of the upper mounting plate 36 is fixedly installed with a guide rail power device side shell 31 and a sliding guide rail 34. The guide rail power device side shell 31 is provided with a power transmission device 35 for driving the welding and clamping structure 4. A power connection device 32 is fixedly installed at one end of the guide rail power device side shell 31. A power motor 33 is also fixedly installed on one side of the power connection device 32 to drive the power transmission device 35 to rotate, thereby driving the welding and clamping structure 4.

[0102] In this embodiment, the guide rail moving device 3 is fixedly connected to the feeding area support plate 1 via the upper mounting plate 36. The guide rail power device side shell 31 and the sliding guide rail 34 are fixed to the upper end face of the upper mounting plate 36. The power motor 33 drives the power transmission device 35 to operate via the power connection device 32, thereby driving the slider mounting device 43 and the welding and clamping structure 4 fixed thereto to move precisely along the guide rail power device side shell 31 and the sliding guide rail 34, so that the welding and clamping structure 4 can achieve rapid transfer and precise positioning between the cutting tooth head feeding station, the brazing filler metal dipping station and the welding station.

[0103] Specifically, the welding and clamping structure 4 includes a slider mounting device 43 that is slidably mounted on the housing 31 of the guide rail power device and the sliding guide rail 34. A cutting tooth gripping device 44 is fixedly mounted on the lower end face of the slider mounting device 43. A welding moving device 42 is fixedly mounted on one side of the cutting tooth gripping device 44. A welding device 41 is slidably mounted on the welding moving device 42.

[0104] In this embodiment, the welding and clamping structure 4 is slidably mounted on the guide rail moving device 3 via the slider mounting device 43. A cutting tooth gripping device 44 for picking up the cutting tooth is fixedly mounted on the lower end face of the slider mounting device 43. A welding moving device 42 is fixedly mounted on one side of the cutting tooth gripping device 44. A welding device 41 is slidably mounted on the welding moving device 42. Thus, the clamping and transfer function of the cutting tooth and the lifting and feeding function of the welding head are integrated into one, so that the entire process from the cutting tooth being taken out of the cutting tooth clamp 531 to being aligned and welded with the cutting tooth seat after being dipped in the brazing tool can be completed continuously without secondary clamping.

[0105] Specifically, the welding device 41 includes a vertically movable slider 412 slidably installed inside the welding moving device 42. A slider connecting plate 413 is fixedly installed on one side of the vertically movable slider 412, and a welding head mounting plate 414 is fixedly installed on the other side of the slider connecting plate 413. A welding head fixing plate 417 is fixedly installed on the other side of the welding head mounting plate 414. A rotating shaft 415 is fixedly installed on the upper surface of the welding head fixing plate 417. Pulley drive structures 416 are fixedly installed at both ends of the rotating shaft 415. A belt drive structure 416 is fixedly installed on the lower side of the pulley drive structure 416 and on the outer side of the welding head fixing plate 417. 4161, a belt is provided between the pulley drive structure 416 and the belt 4161. A welding head rotation power device 411 is fixedly installed at one end of the rotating shaft 415. The welding head rotation power device 411 is also fixedly installed on the side plate of the welding head mounting plate 414. An anti-rotation deviation structure 418 is also fixedly installed on one side of the welding head mounting plate 414. An anti-deviation wheel 419 is also fixedly installed on the outside of the belt 4161 on the same side as the anti-rotation deviation structure 418. A welding head structure 410 is rotatably installed inside the welding head fixing plate 417. The welding head structure 410 is fixedly installed with the belt 4161.

[0106] In this embodiment, the welding device 41 is slidably connected to the welding moving device 42 via the up-and-down moving slider 412. The up-and-down moving slider 412 is fixedly connected to the welding head fixing plate 417 via the slider connecting plate 413 and the welding head mounting plate 414. The welding head rotation power device 411 drives the belt 4161 to move through the rotating shaft 415 and the pulley transmission structure 416, thereby causing the welding head structure 410 to rotate within the welding head fixing plate 417. At the same time, the anti-rotation deviation structure 418 and the anti-deviation wheel 419 jointly restrict the running trajectory of the belt 4161, so that the welding head structure 410 can perform multi-angle rotation welding around the vertical axis, which meets the continuous welding requirements of welds at different angles at the joint of the cutting tooth head and the cutting tooth seat.

[0107] Specifically, the welding head structure 410 includes a pair of welding head clamps 4101 fixedly installed on both sides inside the welding head fixing plate 417, a welding head external frame 4102 fixedly installed between the pair of welding head clamps 4101, a welding head terminal block 4103 fixedly installed on the upper end face of the welding head external frame 4102, and a welding head 4104 fixedly installed inside the welding head external frame 4102.

[0108] In this embodiment, the welding head structure 410 is clamped and fixed inside the welding head fixing plate 417 by a pair of welding head clamps 4101. The welding head outer frame 4102 is fixed between the pair of welding head clamps 4101 and has a built-in welding head 4104. The welding head terminal 4103 is fixed to the upper end face of the welding head outer frame 4102 for connecting the welding power source, so that the welding head 4104 performs multi-angle circumferential welding on the joint between the cutting tooth head and the cutting tooth seat under the rotation drive and ensures the uniformity and continuity of the weld.

[0109] Specifically, the welding moving device 42 includes a lifting guide rail 422 that is slidably connected to the up and down moving slider 412, and a welding lifting motor 421 is fixedly installed on the upper end face of the lifting guide rail 422.

[0110] The slider mounting device 43 includes a gripping device lifting power device mounting frame 441 that is fixedly connected to the lifting guide rail 422;

[0111] The gripping device lifting power device 423 is fixedly installed inside the gripping device lifting power device mounting frame 441. The gripping device lifting power device 423 is fixedly connected to the lifting rod 4231. The lower end face of the lifting rod 4231 passes through the gripping device lifting power device mounting frame 441 and is fixedly installed with a connector 4232. The gripping device 424 is fixedly installed on the lower end face of the connector 4232.

[0112] In this embodiment, the welding moving device 42 slides with the vertical moving slider 412 via the lifting guide rail 422 and is driven by the welding lifting motor 421 to realize the vertical lifting of the welding device 41. The slider mounting device 43 is fixedly mounted with the gripping device lifting power device 423 via the gripping device lifting power device mounting frame 441. The gripping device lifting power device 423 drives the gripping device 424 to lift and lower via the lifting rod 4231 and the connector 4232 to complete the picking up and releasing of the cutting tooth head. This realizes the independent control of the welding lifting action and the gripping lifting action and ensures that the actions do not interfere with each other.

[0113] Specifically, a clamping claw mounting block 4245 is fixedly installed on the lower end face of the connector 4232. A fixed clamping claw 4242 is fixedly installed on one side of the clamping claw mounting block 4245, and a movable clamping claw 4243 is slidably installed on the other side of the clamping claw mounting block 4245. A clamping claw connecting device 4244 is fixedly installed on the upper end face of the movable clamping claw 4243. A clamping power device 4241 is fixedly installed on the upper end face of the clamping claw connecting device 4244, and a movable clamping claw push rod is fixedly installed inside the clamping power device 4241.

[0114] In this embodiment, the gripping device 424 is fixedly connected to the connector 4232 via the clamping claw mounting block 4245. The fixed clamping claw 4242 is fixed to one side of the clamping claw mounting block 4245, and the movable clamping claw 4243 is slidably mounted on the other side of the clamping claw mounting block 4245 and is driven by the clamping power device 4241 via the clamping claw connecting device 4244 to move closer to or away from the fixed clamping claw 4242, thereby achieving reliable clamping and releasing of the cutting tooth head and ensuring the positional accuracy of the cutting tooth head during the transfer and brazing process to meet the requirements of subsequent precise alignment welding.

[0115] A method for multi-angle positioning and welding of cutting teeth.

[0116] Step 1: Place the cutting tooth holder to be welded into the feed port 619 of the automatic cutting tooth holder feeding device 61, and start the automatic cutting tooth holder feeding device 61 to drive the cutting tooth holder to move along the cutting tooth holder clamp guide route to the welding station at the discharge port 610.

[0117] Step 2: Place the cutting tooth head in the cutting tooth head conveying channel 51, start the conveyor belt 512 to push the cutting tooth head towards the cutting tooth head clamp 531, the cylinder 521 drives the cutting tooth conveying guide rail 5323 to move and retract, and at the same time the long strip-shaped cutting tooth head bearing part of the cutting tooth conveying guide rail 5323 pushes the cutting tooth head towards the cutting tooth anti-reverse claw 5322.

[0118] Step 3: During the pushing process, the cutting tooth head pushes the cutting tooth anti-reverse pawl 5322 to rotate in one direction. When the cutting tooth head passes the cutting tooth anti-reverse pawl 5322, the check spring 5324 drives the cutting tooth anti-reverse pawl 5322 to reset, so as to limit the cutting tooth head to the cutting tooth head installation position on the cutting tooth head fixture 531.

[0119] Step 4: Start the scraping device power structure 6223, drive the guide rail 6224 to move the scraper fixing block 6229 and scraper 62201, and guide the lifting guide wheel 62203 to rise and fall through the inclined surface cooperation of the scraper lifting structure 6225 and the scraper lowering structure 6226, so that the scraper 62201 scrapes away the impurities on the surface of the brazing material in the dipping plate 6212;

[0120] Step 5: Start the guide rail moving device 3 and welding and clamping structure 4 on the support plate 1 of the feeding area to move the cutting tooth gripping device 44 to the cutting tooth installation position and clamp the cutting tooth.

[0121] Step 6: Move the clamped cutting tooth head above the dipping plate 6212 of the brazing material dipping area 62, lower the cutting tooth head to dip it in the brazing material, and then reset it.

[0122] Step 7: Move the cutting tooth head, after dipping it in brazing material, to the welding station and align it with the cutting tooth holder;

[0123] Step 8: Start the welding device 41 to perform multi-angle welding at the joint between the cutting tooth head and the cutting tooth seat.

[0124] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A multi-angle positioning welding device for cutting teeth, comprising a welding device chassis (2), characterized in that: The upper end face of the welding device chassis (2) is fixedly installed with a welding auxiliary device (6), an automatic feeding structure (5) and a feeding area support plate (1). The upper end face of the feeding area support plate (1) is fixedly installed with a guide rail moving device (3). The welding and clamping structure (4) is slidably installed on the guide rail moving device (3). The welding auxiliary device (6) includes an automatic feeding device (61) for cutting teeth and a brazing material pick-up point (62) that are fixedly installed on the upper surface of the welding device chassis (2). The automatic feeding structure (5) includes a cutting tooth support seat (54) fixedly installed on the upper end face of the welding device chassis (2). A cutting tooth positioning structure (53) is fixedly installed on the upper end face of the cutting tooth support seat (54). A cutting tooth conveying channel (51) and a cylinder support seat (52) are fixedly installed on both sides of the cutting tooth support seat (54). The cutting tooth conveying channel (51) includes an outer conveying channel cutting tooth support plate (511) and a conveyor belt (512) fixedly installed inside the conveying channel cutting tooth support plate (511). The cutting tooth head support base (54) includes a support base bottom fixing plate (541) fixedly installed on the upper end face of the welding device chassis (2), a fixing plate A (542) is fixedly installed on the upper end face of the support base bottom fixing plate (541), a fixing plate B (543) is fixedly installed on the upper end face of the fixing plate A (542), and a cutting tooth head clamp installation position (544) is fixedly installed on the upper end face of the fixing plate B (543). The cutting tooth positioning structure (53) includes a cutting tooth clamp (531) fixedly installed on the upper end face of the cutting tooth clamp mounting position (544). A cutting tooth side plate (533) is fixedly installed on the outside of the cutting tooth clamp (531). A support base (522) is fixedly installed on one side of the cutting tooth side plate (533) and the cutting tooth clamp (531). A cutting tooth positioning structure (532) is fixedly installed on the upper end of the inner side of the cutting tooth side plate (533). A cylinder (521) is fixedly installed on one side of the cutting tooth side plate (533) and the upper end face of the support base (522). The cutting tooth positioning structure (532) includes a sliding groove (5321) fixedly installed on the inner side of the cutting tooth side plate (533). A cutting tooth conveying guide rail (5323) is slidably installed inside the sliding groove (5321). One end of the cutting tooth conveying guide rail (5323) adjacent to the conveyor belt (512) is constructed as a guide ramp. The rear section of the guide ramp extends to form a long strip-shaped cutting tooth bearing part. The length of the cutting tooth bearing part is configured to be less than the corresponding length of the cutting tooth clamp (531). A cutting tooth anti-reverse claw (5322) is installed on the upper end face of the cutting tooth head side plate (533). A check spring (5324) is fixedly installed between the cutting tooth anti-reverse claw (5322) and the cutting tooth head side plate (533). The check spring (5324) is configured to constrain the cutting tooth anti-reverse claw (5322) to rotate only in one direction toward the movement direction of the conveyor belt (512), and drive the cutting tooth anti-reverse claw (5322) to reset to the initial position after the external force disappears. The side wall of the cutting tooth head side plate (533) has a receiving cavity formed inside to accommodate the telescopic movement of the cylinder (521). The cylinder (521) is fixedly connected to the cutting tooth conveying guide rail (5323) in the receiving cavity so that the telescopic movement of the cylinder (521) drives the cutting tooth conveying guide rail (5323) to move synchronously. The cutting tooth head clamp (531) is provided with five cutting tooth head installation stations, and each cutting tooth head installation station is provided in a one-to-one correspondence with the cutting tooth anti-reverse claw (5322).

2. The multi-angle positioning and welding device for cutting teeth according to claim 1, characterized in that: The automatic feeding device (61) for cutting teeth includes a pair of support plates (616) fixedly installed on the upper surface of the welding device chassis (2). The upper surfaces of the pair of support plates (616) are jointly fixedly installed with a cutting teeth holder fixture placement area (618). A cylinder (614) is fixedly installed on the lower surface of the cutting teeth holder fixture placement area (618). A sliding seat (612) is sleeved on the lower surface of the cylinder (614). The sliding seat (612) is internally provided with... The cylinder (614) is slidably installed in the slide groove (615). A connecting plate (613) is fixedly installed at one end of the sliding seat (612). The connecting plate (613) is also fixedly installed with a cutting tooth seat feed push plate (611). A plurality of cutting tooth seat clamp guide routes are provided on the upper surface of the cutting tooth seat clamp placement area (618). The cutting tooth seat clamp guide routes are respectively provided with a feed port (619) and a discharge port (610). The brazing material dipping area (62) includes a brazing material dipping result (621) fixedly installed on the upper end face of the welding device chassis (2) and a placement tray impurity scraping device (622).

3. The multi-angle positioning and welding device for cutting teeth according to claim 2, characterized in that: The brazing material dipping result (621) includes a dipping structure base (6214) fixedly installed on the upper end face of the welding device chassis (2), a dipping structure bottom fixing plate (6213) fixedly installed on the upper end face of the dipping structure base (6214), a dipping tray shell (6211) fixedly installed on the upper end face of the dipping structure bottom fixing plate (6213), and a dipping tray (6212) placed inside the dipping tray shell (6211). The impurity scraping device (622) includes a guide rail mounting plate (6222) fixedly installed on the upper end face of the welding device chassis (2). A scraping device power structure (6223) is fixedly installed on the lower end face of the welding device chassis (2). The scraping device power structure (6223) passes through the guide rail mounting plate (6222) and is fixedly installed on the guide rail (6224). A slider (6227) is slidably installed on the guide rail (6224). A scraper fixing block (6229) is fixedly installed on one side of the slider (6227). A lifting guide wheel (6229) is movably installed inside the scraper fixing block (6229). 2203), a connecting head block (6220) is also fixedly installed on one side of the scraper fixing block (6229), a scraper lifting structure (6225) and a scraper lowering structure (6226) are fixedly installed on the upper end face of the guide rail mounting plate (6222), a push rod (6221) is fixedly installed on one side of the scraper lowering structure (6226), the push rod (6221) is fixedly connected to the connecting head block (6220), a scraper connecting block (62202) is also fixedly installed on one side of the scraper fixing block (6229), and a scraper (62201) is also fixedly installed on the scraper connecting block (62202); The vertical height of the scraper lowering structure (6226) is higher than the upper end face of the scraper raising structure (6225); the end of the scraper raising structure (6225) adjacent to the scraper lowering structure (6226) is formed as a downward inclined surface; the side of the scraper lowering structure (6226) adjacent to the scraper raising structure (6225) is formed as an upward inclined surface; the upward inclined surface and the downward inclined surface cooperate with each other to guide the lifting guide wheel (62203) to move up and down within the scraper fixing block (6229).

4. The multi-angle positioning and welding device for cutting teeth according to claim 1, characterized in that: The guide rail moving device (3) includes an upper mounting plate (36) fixedly installed and fixedly connected to the feeding area support plate (1). The upper end face of the upper mounting plate (36) is fixedly installed with a guide rail power device side shell (31) and a sliding guide rail (34). The guide rail power device side shell (31) is provided with a power transmission device (35) for driving the welding and clamping structure (4). A power connection device (32) is fixedly installed at one end of the guide rail power device side shell (31). A power motor (33) is also fixedly installed on one side of the power connection device (32) to drive the power transmission device (35) to rotate, thereby driving the welding and clamping structure (4).

5. The multi-angle positioning and welding device for cutting teeth according to claim 1, characterized in that: The welding and clamping structure (4) includes a slider mounting device (43) that is slidably mounted on the side housing (31) of the guide rail power device and the sliding guide rail (34). A cutting tooth gripping device (44) is fixedly mounted on the lower end face of the slider mounting device (43). A welding moving device (42) is fixedly mounted on one side of the cutting tooth gripping device (44). A welding device (41) is slidably mounted on the welding moving device (42).

6. The multi-angle positioning and welding device for cutting teeth according to claim 5, characterized in that: The welding device (41) includes a vertically movable slider (412) slidably installed inside the welding moving device (42). A slider connecting plate (413) is fixedly installed on one side of the vertically movable slider (412), and a welding head mounting plate (414) is fixedly installed on the other side of the slider connecting plate (413). A welding head fixing plate (417) is fixedly installed on the other side of the welding head mounting plate (414). A rotating shaft (415) is fixedly installed on the upper end face of the welding head fixing plate (417). A belt drive structure (416) is fixedly installed at both ends of the rotating shaft (415). A belt drive structure (416) is fixedly installed on the lower side of the belt drive structure (416) and on the outer side of the welding head fixing plate (417). 61), a belt is provided between the pulley drive structure (416) and the belt (4161), a welding head rotation power device (411) is fixedly installed at one end of the rotating shaft (415), the welding head rotation power device (411) is also fixedly installed on the side plate of the welding head mounting plate (414), an anti-rotation deviation structure (418) is also fixedly installed on one side of the welding head mounting plate (414), an anti-deviation wheel (419) is also fixedly installed on the outside of the belt (4161) on the same side as the anti-rotation deviation structure (418), a welding head structure (410) is rotatably installed inside the welding head fixing plate (417), and the welding head structure (410) is fixedly installed with the belt (4161).

7. The multi-angle positioning and welding device for cutting teeth according to claim 6, characterized in that: The welding head structure (410) includes a pair of welding head clamps (4101) fixedly installed on both sides inside the welding head fixing plate (417), a welding head external frame (4102) fixedly installed between the pair of welding head clamps (4101), a welding head terminal (4103) fixedly installed on the upper end face of the welding head external frame (4102), and a welding head (4104) fixedly installed inside the welding head external frame (4102).

8. The multi-angle positioning and welding device for cutting teeth according to claim 5, characterized in that: The welding moving device (42) includes a lifting guide rail (422) that is slidably connected to the upper and lower moving slider (412), and a welding lifting motor (421) is fixedly installed on the upper end face of the lifting guide rail (422). The slider mounting device (43) includes a gripping device lifting power device mounting frame (441) that is fixedly connected to the lifting guide rail (422). The gripping device lifting power device mounting frame (441) is fixedly installed with a gripping device lifting power device (423). The gripping device lifting power device (423) is fixedly connected to the lifting rod (4231). The lower end face of the lifting rod (4231) passes through the gripping device lifting power device mounting frame (441) and is fixedly installed with a connector (4232). The gripping device (424) is fixedly installed on the lower end face of the connector (4232).

9. The multi-angle positioning and welding device for cutting teeth according to claim 8, characterized in that: A clamping claw mounting block (4245) is fixedly installed on the lower end face of the connector (4232). A fixed clamping claw (4242) is fixedly installed on one side of the clamping claw mounting block (4245). A movable clamping claw (4243) is slidably installed on the other side of the clamping claw mounting block (4245). A clamping claw connecting device (4244) is fixedly installed on the upper end face of the movable clamping claw (4243). A clamping power device (4241) is fixedly installed on the upper end face of the clamping claw connecting device (4244). A movable clamping claw push rod is fixedly installed inside the clamping power device (4241).

10. A method for multi-angle positioning and welding of cutting teeth, characterized in that: Step 1: Place the cutting tooth holder to be welded into the feed port (619) of the automatic cutting tooth holder feeding device (61), and start the automatic cutting tooth holder feeding device (61) to drive the cutting tooth holder to move along the cutting tooth holder clamp guide route to the welding station at the discharge port (610). Step 2: Place the cutting tooth head in the cutting tooth head conveying channel (51), start the conveyor belt (512) to push the cutting tooth head towards the cutting tooth head clamp (531), the cylinder (521) drives the cutting tooth conveying guide rail (5323) to move and retract, and at the same time the long strip-shaped cutting tooth head bearing part of the cutting tooth conveying guide rail (5323) pushes the cutting tooth head towards the cutting tooth anti-reverse claw (5322); Step 3: During the pushing process, the cutting tooth head pushes the cutting tooth anti-reverse pawl (5322) to rotate in one direction. When the cutting tooth head passes the cutting tooth anti-reverse pawl (5322), the check spring (5324) drives the cutting tooth anti-reverse pawl (5322) to reset, so as to limit the cutting tooth head to the cutting tooth head installation position on the cutting tooth head fixture (531). Step 4: Start the power structure (6223) of the scraping device, drive the guide rail (6224) to move the scraper fixing block (6229) and scraper (62201), and guide the lifting guide wheel (62203) to rise and fall through the inclined surface cooperation of the scraper lifting structure (6225) and scraper lowering structure (6226) so that the scraper (62201) scrapes away the impurities on the surface of the brazing material in the dipping plate (6212); Step 5: Activate the guide rail moving device (3) and welding and clamping structure (4) on the support plate (1) of the feeding area to move the cutting tooth gripping device (44) to the cutting tooth installation position and clamp the cutting tooth. Step 6: Move the clamped cutting tooth to above the dipping plate (6212) of the brazing material dipping area (62), lower the cutting tooth so that it dips into the brazing material and then returns to its original position; Step 7: Move the cutting tooth head, after it has been dipped in brazing material, to the welding station and align it with the cutting tooth seat; Step 8: Start the welding device (41) to perform multi-angle welding on the joint between the cutting tooth head and the cutting tooth seat.

Images