Milling cutter workpiece feeding device of milling cutter welding machine

Abstract

The invention discloses a milling cutter workpiece feeding device of a milling cutter welding machine, and relates to the technical field of milling cutter welding. By arranging the rotary table, the multiple milling cutter clamping assemblies and the feeding control assemblies, when the rotary table rotates, each milling cutter clamping assembly can load the milling cutter assemblies to sequentially pass through the feeding control assemblies at multiple positions, and when the milling cutter clamping assemblies meet the feeding control assemblies, the milling cutter assemblies can be loaded on the feeding control assemblies to sequentially pass through the feeding control assemblies at multiple positions; the feeding control assembly can be triggered and control the blade to be automatically assembled to the cutter groove, and after the blade and the cutter groove are assembled, the electric arc welding mechanical arm can be automatically controlled to weld the blade according to a preset program. After one feeding control assembly completes welding, 120-degree overturning can be completed when the feeding control assembly meets the other feeding control assembly, blade welding operation can be automatically conducted on the next cutter groove, and therefore automatic overturning of the milling cutter assembly, automatic assembly of the blade and the cutter groove and automatic switching of the welding position can be achieved; the purpose of automatically welding the milling cutter assembly is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of milling cutter welding, and specifically to a feeding device for milling cutter workpieces of a milling cutter welding machine. Background Art

[0002] A milling cutter welding machine is a special equipment for welding milling cutter blades to the cutter body, and is widely used in the fields of tool manufacturing and machining.

[0003] Among them, as one of the commonly used welding equipment, the arc welding milling cutter welding machine combines arc welding technology with milling cutter manufacturing technology. Based on the high-temperature melting characteristics of arc welding, the blade is firmly fixed on the cutter body to ensure that the milling cutter has sufficient strength and stability during high-speed cutting.

[0004] Referring to the feeding device of a resistance welding machine for PCB milling cutter processing disclosed in the patent application with the publication number CN210451352U, by setting a head and shank material handling module, a head material feeding circular vibrator, a shank material feeding hopper and a head and shank material handling motor, it is convenient to feed the milling cutter and the stainless steel shank, and then the two are welded by thermal resistance, avoiding inconvenient feeding during the welding of the milling cutter and the stainless steel shank, resulting in poor welding by using resistance heating, facilitating the reduction of the usage cost of silver solder sheets and fluxes, automatic feeding, high reliability, facilitating the improvement of welding quality, and carrying out batch automated production.

[0005] The above-mentioned milling cutter processing feeding device in the prior art has the following defects in actual use: When the existing milling cutter welding machine welds a milling cutter workpiece, after welding one blade in one of the cutter grooves, it is necessary to first release the fixation of the milling cutter shank, and then manually flip the milling cutter shank so that another cutter groove is in a position facing the welding torch and then clamp and fix it before performing the secondary welding operation. During the process of manually or mechanically flipping the shank, it is difficult to accurately control the angle and position of each flip, resulting in a deviation in the relative position between the cutter groove and the welding torch, and flipping the shank requires additional operation steps, increasing the welding preparation time, with low automation and reducing the overall welding efficiency. Especially in batch production, frequently flipping the shank will significantly extend the single-piece processing time and it is difficult to meet the high-efficiency production requirements.

[0006] Therefore, the present invention proposes a feeding device for milling cutter workpieces of a milling cutter welding machine to solve the above problems. Summary of the Invention

[0007] In view of the deficiencies of the prior art, the present invention provides a feeding device for milling cutter workpieces of a milling cutter welding machine, which solves the problems that when the existing milling cutter welding machine welds a milling cutter workpiece, after welding one blade in one of the cutter grooves, it is necessary to first release the fixation of the milling cutter handle, manually flip the milling cutter handle so that another cutter groove is in a position directly opposite to the welding torch, and then perform clamping and fixation before the secondary welding operation can be carried out. When manually or mechanically flipping the handle, it is difficult to accurately control the angle and position of each flip, resulting in a deviation in the relative position between the cutter groove and the welding torch. Moreover, flipping the handle requires additional operation steps, increasing the welding preparation time, with low automation and reduced overall welding efficiency. Especially in mass production, frequently flipping the handle will significantly extend the single-piece processing time and it is difficult to meet the requirements of high-efficiency production.

[0008] To achieve the above objectives, the present invention is realized through the following technical solutions: A feeding device for milling cutter workpieces of a milling cutter welding machine, including a welding box, a milling cutter assembly, and a plurality of operation windows opened around the outer wall of the welding box. A protective door is rotatably arranged in each of the operation windows, and further includes: A feeding rotation mechanism, arranged inside the welding box, for clamping and transporting the milling cutter to be welded through a milling cutter clamping assembly, and completing the raw material supply work in the milling cutter welding process; A feeding auxiliary mechanism, arranged at the bottom of the inner cavity of the welding box and the feeding rotation mechanism is sleeved on the outer wall of the feeding auxiliary mechanism, for cooperating with the feeding rotation mechanism to complete the automatic clamping of the milling cutter workpiece and automatically flipping and welding the milling cutter workpiece at different welding positions in sequence; An arc welding manipulator, arranged on the top of the feeding auxiliary mechanism, for performing welding operations on the milling cutter workpiece reaching the preset position according to welding control instructions at different positions.

[0009] Furthermore, the feeding auxiliary mechanism includes a base and a column fixedly arranged on the top of the base. A first toothed ring is fixedly arranged on the outer wall of the column through a bracket, and a plurality of feeding control components for controlling different weld positions of the welded milling cutter workpiece are uniformly arranged on the outer wall of the column. On one side of the top of the base, a servo motor is also fixedly arranged. A worm for driving the feeding rotation mechanism to rotate is fixedly arranged on the output shaft of the servo motor, and a first driving ring is also fixedly arranged on the top of the base.

[0010] Further, the feeding control assembly includes a first mounting bracket and a blade support plate fixedly arranged on the upper and lower sides of the outer wall of the column respectively. Inside the first mounting bracket and above the blade support plate, there is fixedly arranged a blade placing cylinder for storing welding parts. At one end of the blade support plate away from the column, a plurality of guiding balls are evenly rotatably arranged. And on the top of the blade support plate, near one side of the column, there is also fixedly arranged a cylinder. The output end of this cylinder is fixedly provided with a push plate. An electromagnet mounting groove is opened at the end of the push plate, and an electromagnet block is fixedly arranged in this electromagnet mounting groove.

[0011] Further, a vertical plate is also fixedly arranged at the bottom of the blade support plate. At the upper and lower positions on the side wall of this vertical plate, a first trigger switch and a second trigger switch for controlling the operation of the cylinder and the electromagnet block are respectively fixedly arranged. On the side wall of the column and on one side of the first mounting bracket, there is also fixedly arranged a second mounting bracket. On the side wall of the second mounting bracket, there is fixedly arranged a third trigger switch for controlling the arc welding manipulator to perform welding operations directly in front of the second mounting bracket.

[0012] Further, the feeding rotation mechanism includes a turntable rotatably sleeved on the outer wall of the column. On the top of the turntable, a plurality of milling cutter clamping assemblies for clamping milling cutter workpieces and performing welding feeding work are evenly arranged. And at the center position of the bottom of the turntable, there is fixedly arranged a worm gear meshed with a worm. On the top of the turntable, a plurality of avoidance through grooves for providing moving space for the milling cutter clamping assemblies at corresponding positions are also evenly opened.

[0013] Further, the milling cutter clamping assembly includes a cylinder body rotatably arranged on the top of the turntable through a bearing frame. At one end of the cylinder body, there is arranged a support tube assembly for adjusting the support length according to the length of the milling cutter workpiece. On the outer wall of the cylinder body, a plurality of adjusting cavities are evenly opened. Inside each adjusting cavity, there is arranged a clamping unit for clamping the outer wall of the milling cutter workpiece. A clamping driving assembly for driving the clamping units at multiple positions to perform clamping actions or release clamping actions synchronously is also slidably sleeved on the outer wall of the cylinder body. On the side of the bearing frame away from the cylinder body, there is also arranged a driving rod.

[0014] Further, the support tube assembly includes a support cylinder fixedly arranged at one end of the cylinder body. A length adjusting cylinder is slidably sleeved on the outer wall of the support cylinder. And on the outer wall of the support cylinder, near the cylinder body, there is fixedly sleeved a second toothed ring meshed with a first toothed ring. At the relative positions on the upper and lower sides of the inner wall of the length adjusting cylinder, there is respectively arranged a positioning clamping unit. The two positioning clamping units form pre-clamping of the milling cutter workpiece from the relative positions on the upper and lower sides. The positioning clamping unit includes a clamping column slidably penetrating through the length adjusting cylinder. At one end of the clamping column and inside the length adjusting cylinder, there is fixedly arranged a limiting plate. And on the outer wall of the clamping column and between the limiting plate and the inner wall of the length adjusting cylinder, there is slidably sleeved a first spring.

[0015] Further, the clamping unit includes a wedge block slidably disposed in the adjustment cavity. Both sides of the bottom of the wedge block are fixedly provided with lifting rods. The bottom ends of the two lifting rods slidably penetrate through the adjustment cavity and are jointly fixedly provided with an arc-shaped clamping block. A second spring is slidably sleeved on the outer wall of the lifting rod between the wedge block and the inner wall of the adjustment cavity.

[0016] Further, the clamping drive assembly includes a second drive ring slidably sleeved on the outer wall of the cylinder body. A position adjustment ring is slidably sleeved on the outer wall of the second drive ring. An annular sleeve is rotatably sleeved on the outer wall of the position adjustment ring. A carrier is fixedly provided at the bottom of the annular sleeve. A guide rod is fixedly provided on the side wall of the carrier. The guide rod slidably penetrates through the carrier and extends to the outside. A third spring is also slidably sleeved on the outer wall of the guide rod. A chute is opened at the top of the second drive ring. And a scale wire groove for marking the position of the position adjustment ring is opened at one side of the chute at the top of the second drive ring.

[0017] Further, the milling cutter assembly includes a cutter handle and a cutter head fixedly provided at one end of the cutter handle. Positioning grooves are opened on both the upper and lower sides of the outer wall of the cutter handle. A plurality of cutter grooves are uniformly opened on the outer wall of the cutter head. A cutter blade is welded in each cutter groove by means of arc welding.

[0018] The present invention provides a feeding device for a milling cutter workpiece of a milling cutter welding machine. Compared with the prior art, the following beneficial effects are achieved: 1. A feeding device for a milling cutter workpiece of a milling cutter welding machine. By setting a milling cutter clamping assembly, a first toothed ring and a drive ring, the milling cutter clamping assembly can first perform pre-clamping on milling cutter assemblies with different outer diameters and then realize simultaneous clamping at multiple positions by the driving force of the drive ring. The pre-clamping of the positioning clamping unit can prevent the milling cutter assembly from rotating freely, so as to ensure that each cutter groove is in a predetermined definite position. And the clamping unit can further stably clamp the milling cutter assembly on the basis of pre-clamping, ensuring the accuracy of subsequent cutter groove and cutter blade assembly, thus laying a foundation for the feeding work before subsequent welding. And by adjusting the distance between the carrier and the drive ring, the clamping radius of multiple clamping units can be changed, so that the milling cutter clamping assembly can be applicable to the clamping work of milling cutters with various outer diameter sizes. Moreover, the support tube assembly can also be adaptively adjusted according to the lengths of different milling cutter assemblies to realize the pre-clamping work of milling cutter assemblies with various lengths, greatly expanding the applicable range of the milling cutter clamping assembly.

[0019] 2. A tool holder feeding device for a milling cutter welding machine. By setting a turntable, multiple milling cutter clamping components and a feeding control component, when the turntable rotates, each milling cutter clamping component can load the milling cutter assembly and pass through the feeding control components at multiple positions in sequence. And when the milling cutter clamping component and the feeding control component meet, the feeding control component can be triggered to control the automatic assembly process of the blade into the tool slot. And after the blade and the tool slot are assembled, it can also automatically control the arc welding manipulator to weld the blade according to a preset program. Moreover, after one feeding control component completes the welding, it can complete a 120-degree flip when meeting another feeding control component, realizing the operation of automatically welding the blade to the next tool slot, so as to achieve the automatic flipping of the milling cutter assembly, the automatic assembly of the blade and the tool slot, and the automatic switching of the welding position, and achieve the purpose of automatically welding the milling cutter assembly.

[0020] 3. A tool holder feeding device for a milling cutter welding machine. The intermittent rotation of the turntable is controlled by a servo motor to drive the rotation of multiple milling cutter clamps, enabling the welding operation of the milling cutter assembly to be carried out simultaneously at multiple positions. And after the tool holder clamping component carrying the welded milling cutter loses the driving force of the driving ring, it can also automatically release the driving and clamping of the tool holder clamping component, facilitating the automatic release of the clamping of the milling cutter assembly during the intermittent time of the servo motor, so as to conveniently take out the milling cutter assembly.

[0021] Other advantages, objectives and features of the present invention will be described to some extent in the subsequent specification, and to some extent, will be obvious to those skilled in the art based on the study of the following text, or can be taught from the practice of the present invention. The objectives and other advantages of the present invention can be realized and obtained through the following specification. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic perspective view of the first overall structure of the present invention; Figure 2 It is a schematic internal structure view of the present invention; Figure 3 It is a schematic view of the assembled state structure of the feeding auxiliary mechanism and the feeding rotation mechanism of the present invention; Figure 4 For the present invention Figure 3 The enlarged schematic view of part A in the present invention; Figure 5 It is a front view schematic view of the present invention in the state of removing the welding box; Figure 6 It is a first exploded state structure schematic view of the feeding auxiliary mechanism and the feeding rotation mechanism of the present invention; Figure 7 For the present invention Figure 6 The enlarged schematic view of part B in the present invention; Figure 8 For the present invention Figure 6 Schematic diagram of the enlarged structure of part C in the present invention; Figure 9 Schematic diagram of the second disassembled state structure of the feeding auxiliary mechanism and the feeding rotating mechanism of the present invention; Figure 10 Schematic diagram of the first structure of the milling cutter clamping assembly of the present invention; Figure 11 Schematic diagram of the second structure of the milling cutter clamping assembly of the present invention; Figure 12 Schematic diagram of the sectional structure of the milling cutter clamping assembly of the present invention; Figure 13 For the present invention Figure 12 Schematic diagram of the enlarged structure of part D in the present invention; Figure 14 Schematic diagram of the milling cutter assembly of the present invention.

[0023] In the figure: 1, welding box; 2, protective door; 3, feeding auxiliary mechanism; 31, base; 32, column; 33, first toothed ring; 34, feeding control component; 341, first mounting rack; 342, blade placing cylinder; 343, blade supporting plate; 344, guiding ball; 345, air cylinder; 346, push plate; 347, first trigger switch; 348, second trigger switch; 349, second mounting rack; 3410, third trigger switch; 35, servo motor; 36, worm; 37, first driving ring; 4, feeding rotating mechanism; 41, turntable; 42, milling cutter clamping assembly; 421, cylinder body; 422, supporting cylinder; 423, length adjusting cylinder; 424, positioning clamping unit; 4241, clamping column; 4242, limiting plate; 4243, first spring; 425, second toothed ring; 426, adjusting cavity; 427, wedge-shaped block; 428, lifting rod; 429, arc-shaped clamping block; 4210, second spring; 4211, second driving ring; 4212, chute; 4213, scale wire groove; 4214, position adjusting ring; 4215, annular sleeve; 4216, bearing frame; 4217, guiding rod; 4218, third spring; 4219, driving rod; 43, worm gear; 5, arc welding manipulator; 6, milling cutter assembly; 61, tool shank; 62, positioning groove; 63, tool groove; 64, blade. Detailed implementation manners

[0024] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0025] The present invention provides two technical solutions: a feeding device for a milling cutter workpiece of a milling cutter welding machine, specifically including the following embodiments: As Figures 1-9 , Figure 14 Figure 1 shows the first embodiment: a feeding device for a milling cutter workpiece of a milling cutter welding machine, including a welding box 1, a milling cutter assembly 6, and a plurality of operation windows opened around the outer wall of the welding box 1. A protective door 2 is rotatably arranged in each operation window, and further includes: A feeding rotation mechanism 4 is arranged inside the welding box 1 and is used to clamp and transfer the milling cutter to be welded through a milling cutter clamping assembly 42, so as to complete the raw material supply work in the milling cutter welding process; A feeding auxiliary mechanism 3 is arranged at the bottom of the inner cavity of the welding box 1, and the feeding rotation mechanism 4 is sleeved on the outer wall of the feeding auxiliary mechanism 3, and is used to cooperate with the feeding rotation mechanism 4 to complete the automatic clamping of the milling cutter workpiece and the automatic flipping and welding operations on different welding positions of the milling cutter workpiece in sequence; An arc welding manipulator 5 is arranged on the top of the feeding auxiliary mechanism 3 and is used to perform welding operations on the milling cutter workpiece reaching a preset position according to welding control instructions at different positions.

[0026] In this embodiment, the milling cutter assembly 6 includes a tool shank 61 and a tool tip fixedly arranged at one end of the tool shank 61. Positioning grooves 62 are opened on both the upper and lower sides of the outer wall of the tool shank 61. A plurality of tool grooves 63 are evenly opened on the outer wall of the tool tip. A cutting blade 64 is welded inside each tool groove 63 by arc welding. An adhesive needs to be coated inside the tool groove 63 before welding the cutting blade 64. The adhesive is used to stabilize the cutting blade 64 during the welding process, and the adhesive is easily decomposed when heated.

[0027] In this embodiment, the loading auxiliary mechanism 3 includes a base 31 and a column 32 fixedly arranged on the top of the base 31. A first toothed ring 33 is fixedly arranged on the outer wall of the column 32 through a bracket, and a plurality of loading control components 34 for controlling different weld positions of the welding cutter workpiece are evenly arranged on the outer wall of the column 32. On one side of the top of the base 31, a servo motor 35 is also fixedly arranged. A worm 36 for driving the rotation of the loading rotation mechanism 4 is fixedly arranged on the output shaft of the servo motor 35, and a first driving ring 37 is also fixedly arranged on the top of the base 31. The arc welding manipulator 5 is fixedly arranged on the top of the column 32. The first driving ring 37 is a non-closed ring structure, and both ends thereof are provided with arc angles for smooth contact with the carrier 4216. The servo motor 35 runs intermittently through program control to control the intermittent rotation of the turntable 41, that is, each cutter clamping component 42 starts to manually install the cutter component 6 from the initial position opposite to the notch on the first driving ring 37. Then, the cutter clamping component 42 first meets one end of the first driving ring 37 and is driven by the first driving ring 37 to complete the clamping action of the cutter component 6. Then, when the cutter clamping component 42 rotates to a position opposite to one of the blade placement cylinders 342, it stops rotating. After completing the loading operation during the intermittent time, it continues to rotate to a position opposite to the third trigger switch 3410. By triggering the third trigger switches 3410 at different positions, the arc welding manipulator 5 moves to the position corresponding to the third trigger switch 3410, and performs welding operations at this position through a preset program.

[0028] In this embodiment, the loading control component 34 includes a first mounting bracket 341 and a blade support plate 343 fixedly arranged on the upper and lower sides of the outer wall of the column 32 respectively. A blade placement cylinder 342 for storing welding parts is fixedly arranged inside the first mounting bracket 341 and above the blade support plate 343. A plurality of guide balls 344 are evenly rotatably arranged at one end of the blade support plate 343 away from the column 32, and a cylinder 345 is also fixedly arranged on one side of the top of the blade support plate 343 close to the column 32. A push plate 346 is fixedly arranged at the output end of the cylinder 345. An electromagnet mounting groove is opened at the end of the push plate 346, and an electromagnet block is fixedly arranged in the electromagnet mounting groove. A rubber buffer sleeve is fixedly sleeved on the outer wall of the guide ball 344. Since the rubber buffer sleeve can ensure that the cutter component 6 can smoothly disengage after abutting against the ends of a plurality of guide balls 344 at the same time; In this embodiment, a vertical plate is fixedly arranged at the bottom of the blade carrier 343. A first trigger switch 347 and a second trigger switch 348 for controlling the operation of the air cylinder 345 and the electromagnet block are respectively and fixedly arranged at the upper and lower positions on the side wall of the vertical plate. A second mounting bracket 349 is also fixedly arranged on the side wall of the column 32 and on one side of the first mounting bracket 341. A third trigger switch 3410 for controlling the arc welding manipulator 5 to perform welding operations directly in front of the second mounting bracket 349 is fixedly arranged on the side wall of the second mounting bracket 349.

[0029] In this embodiment, the loading and rotating mechanism 4 includes a turntable 41 rotatably sleeved on the outer wall of the column 32. A plurality of milling cutter clamping assemblies 42 for clamping milling cutter workpieces and performing welding loading work are evenly arranged on the top of the turntable 41. And a worm gear 43 meshing with the worm 36 is fixedly arranged at the central position of the bottom of the turntable 41. A plurality of avoidance through grooves for providing movement space for the corresponding milling cutter clamping assemblies 42 are evenly formed on the top of the turntable 41. The avoidance through grooves provide space for the movement of the carrier 4216.

[0030] As Figures 10-13 shown in the second embodiment, the milling cutter clamping assembly 42 includes a cylinder body 421 rotatably arranged on the top of the turntable 41 through a carrier 4216. One end of the cylinder body 421 is provided with a support tube assembly for adjusting the support length according to the length of the milling cutter workpiece. A plurality of adjustment cavities 426 are evenly formed on the outer wall of the cylinder body 421. A clamping unit for clamping the outer wall of the milling cutter workpiece is arranged inside each adjustment cavity 426. A clamping drive assembly for driving the clamping units at multiple positions to perform clamping actions or release clamping actions synchronously is also slidably sleeved on the outer wall of the cylinder body 421. A drive rod 4219 is also arranged on the side of the carrier 4216 away from the cylinder body 421. The drive rod 4219 is fixedly arranged on the top of the turntable 41 and is used for simultaneously triggering the first trigger switch 347 and the second trigger switch 348 during rotation. At this time, the turntable 41 stops rotating for a preset time, and after the blanking operation of the blade 64 is completed in the tool groove 63, the third trigger switch 3410 is continuously triggered during the subsequent rotation, and the turntable 41 stops rotating for a preset time again while triggering the third trigger switch 3410 to control the arc welding manipulator 5 to quickly adjust the welding position according to a preset program and perform welding operations at a preset position directly in front of the second mounting bracket 349; the height between the bottom end of the blade placing cylinder 342 and the top of the blade carrier 343 is the same as the thickness of the blade 64 and the push plate 346, and the second toothed ring 425 is always meshed with the first toothed ring 33. When each milling cutter clamping assembly 42 reaches a position opposite to one of the blade placing cylinders 342, the tool groove 63 for placing the blade 64 is just opposite to the space between the bottom end of the blade placing cylinder 342 and the top of the blade carrier 343, and the top of the tool groove 63 is on the same horizontal plane as the top of the blade carrier 343; In this embodiment, the support tube assembly includes a support cylinder 422 fixedly arranged at one end of the cylinder body 421. A length adjustment cylinder 423 is slidably sleeved on the outer wall of the support cylinder 422. And a second toothed ring 425 meshed and connected with the first toothed ring 33 is fixedly sleeved on the side of the outer wall of the support cylinder 422 close to the cylinder body 421. Positioning and clamping units 424 are arranged at the relative positions on the upper and lower sides of the inner wall of the length adjustment cylinder 423. The two positioning and clamping units 424 form pre-clamping of the milling cutter workpiece from the relative positions on the upper and lower sides. The positioning and clamping unit 424 includes a clamping column 4241 slidably penetrating through the length adjustment cylinder 423. One end of the clamping column 4241 and inside the length adjustment cylinder 423 is fixedly provided with a limit plate 4242. And a first spring 4243 is slidably sleeved on the outer wall of the clamping column 4241 and between the limit plate 4242 and the inner wall of the length adjustment cylinder 423.

[0031] In this embodiment, the clamping unit includes a wedge block 427 slidably arranged in the adjustment cavity 426. Both sides of the bottom of the wedge block 427 are fixedly provided with lifting rods 428. The bottoms of the two lifting rods 428 slidably penetrate through the adjustment cavity 426 and are jointly fixedly provided with an arc-shaped clamping block 429. A second spring 4210 is slidably sleeved on the outer wall of the lifting rod 428 and between the wedge block 427 and the inner wall of the adjustment cavity 426.

[0032] In this embodiment, the clamping drive assembly includes a second drive ring 4211 slidably sleeved on the outer wall of the cylinder body 421. A position adjustment ring 4214 is slidably sleeved on the outer wall of the second drive ring 4211. An annular sleeve 4215 is rotatably sleeved on the outer wall of the position adjustment ring 4214. A carrier 4216 is fixedly arranged at the bottom of the annular sleeve 4215. A guide rod 4217 is fixedly arranged on the side wall of the carrier 4216. The guide rod 4217 slidably penetrates through the carrier 4216 and extends to the outside. And a third spring 4218 is also slidably sleeved on the outer wall of the guide rod 4217. A chute 4212 is arranged at the top of the second drive ring 4211. And a scale groove 4213 for marking the position of the position adjustment ring 4214 is arranged at the side of the top of the second drive ring 4211 and in the chute 4212. The limit plates 4242 respectively pre-clamp two positioning grooves 62 on the outer wall of the tool handle 61 to prevent the tool handle 61 from rotating before the arc-shaped clamping block 429 performs the clamping action. A plurality of wedge-shaped grooves corresponding to the positions of the wedge blocks 427 one by one are uniformly arranged on the inner wall of the second drive ring 4211. Each wedge-shaped groove is slidably sleeved on the outer wall of the wedge block 427 at the corresponding position. A slider is fixedly arranged on the inner wall of the position adjustment ring 4214. The slider is slidably arranged in the chute 4212.

[0033] In use, one of the milling cutter clamping assemblies 42 is located opposite to the center position of the notch of the first drive ring 37. At this position, the operator inserts the tool shank 61 from one end of the length adjustment cylinder 423 and keeps the cutting head part of the tool shank 61 in contact with the guiding ball 344 at the end of the blade support plate 343. Then, the position of the length adjustment cylinder 423 is adjusted according to the length dimension of the tool shank 61. After unlocking the fastening bolt between the length adjustment cylinder 423 and the support cylinder 422, the length adjustment cylinder 423 is pushed or pulled so that one end of the length adjustment cylinder 423 away from the support cylinder 422 is aligned with one end of the tool shank 61. Then, the clamping columns 4241 at the upper and lower positions are respectively pulled, so that the upper and lower limit plates 4242 are respectively in contact with the two positioning groove 62 areas. At this time, the tool shank 61 cannot rotate freely. Then, the support cylinder 422 and the length adjustment cylinder 423 are locked. The servo motor 35 drives the worm 36 to rotate to drive the worm wheel 43 to run according to a preset program. The carrier 4216 on one of the milling cutter clamping assemblies 42 meets one end of the first drive ring 37 and slides into its inner wall along the arc angle at this end of the first drive ring 37. The carrier 4216 is pushed by the inner wall of the first drive ring 37 and synchronously pushes the second drive ring 4211 to slide along the outer wall of the cylinder body 421. The wedge blocks 427 at multiple positions are driven by the wedge grooves at the corresponding positions on the inner wall of the second drive ring 4211 and gradually move towards the inside of the adjustment cavity 426. The arc-shaped clamping blocks 429 at multiple positions are pushed by the wedge blocks 427 at the corresponding positions and synchronously move closer to each other to form a stable clamp on the outer wall of the tool shank 61. When the turntable 41 continues to rotate, the milling cutter clamping assembly 42 reaches the position opposite to the blade placement cylinder 342, and the drive rod 4219 triggers the first trigger switch 347 and the second trigger switch 348 at the same time. At this time, the electromagnet inside the push plate 346 is energized and has magnetic attraction. At this time, the top of the tool groove 63 and the blade support plate 343 are on the same horizontal line, and the blade 64 is directly opposite to the bottom of the blade placement cylinder 342. Then, the cylinder 345 pushes the push plate 346 to move along directly below the blade placement cylinder 342. The blade 64 located directly below the blade placement cylinder 342 contacts the push plate 346 and is stably adsorbed on the electromagnet. Then, the push plate 346 is synchronously pushed towards the tool groove 63. The push plate 346 temporarily seals the space between the blade support plate 343 and the blade placement cylinder 342. After the blade 64 is pushed into the tool groove 63 and contacts the adhesive, the blade 64 is positioned inside the tool groove 63. The control time of the second trigger switch 348 ends, and the electromagnet loses magnetism and cannot continue to adsorb the blade 64. The first trigger switch 347 continues to control the push plate 346 to return to the original position. After the push plate 346 is withdrawn from the bottom of the blade placement cylinder 342, the blade 64 inside the blade placement cylinder 342 falls on the blade support plate 343 under the action of gravity; Next, when the intermittent time of the servo motor 35 ends, the servo motor 35 continues to drive the turntable 41 to rotate to a position opposite to the third trigger switch 3410. While the third trigger switch 3410 is triggered by the driving rod 4219, the servo motor 35 enters the intermittent stop rotation state again. After the third trigger switch 3410 is triggered, the arc welding manipulator 5 reaches the corresponding position of the third trigger switch 3410 according to the position instruction and welding control instruction sent by the third trigger switch 3410. Then, the arc welding manipulator 5 uses the arc welding gun at its end to perform spot welding on the four corners of the blade 64 first, and then performs all-round welding. After welding the position of one of the tool grooves 63, the arc welding manipulator 5 resets to the original position again. Then, the servo motor 35 continues to drive the turntable 41 to rotate and reaches the position of the next loading control component 34, so that another tool groove 63 is turned to the directly above, that is, the space between the top of the blade support plate 343 and the bottom of the blade placement cylinder 342 in the next loading control component 34 is opposite to the tool groove 63. Since the welding method for each tool groove 63 area is the same, it will not be elaborated here in detail; After welding the areas of multiple tool grooves 63, the tool holder assembly 42 of the milling cutter assembly 6 returns to the original position again, that is, the tool holder assembly 42 is located in the middle area on the notch of the first drive ring 37. At this time, the carrier 4216 loses the drive of the first drive ring 37 and releases the clamping action on the milling cutter assembly 6, and the staff can extract the milling cutter assembly 6 through the operation window; When welding milling cutter assemblies 6 with different outer diameters is required, the position adjustment ring 4214 is pushed along the outer wall of the second drive ring 4211 within a certain range by referring to the scale wire groove 4213. For each scale distance that the position adjustment ring 4214 moves towards the carrier 4216, the distance that the first drive ring 37 pushes the carrier 4216 to move increases, so that the clamping outer diameter adapted by the multiple arc-shaped clamping blocks 429 decreases by one millimeter. On the contrary, for each scale distance that the position adjustment ring 4214 moves in the direction away from the carrier 4216, the distance that the first drive ring 37 pushes the carrier 4216 to move increases, and the clamping outer diameter adapted by the multiple arc-shaped clamping blocks 429 increases by one millimeter. After the position adjustment of the position adjustment ring 4214 is completed, the positions of the second drive ring 4211 and the position adjustment ring 4214 are locked using a fastening bolt.

[0034] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variation thereof is intended to cover non-exclusive inclusion, such that a process, method, article or device comprising a series of elements not only includes those elements but also includes other elements not expressly listed, or elements inherent to such process, method, article or device.

[0035] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A feeding device for a milling cutter workpiece of a milling cutter welding machine, comprising a welding box (1), a milling cutter assembly (6), and a plurality of operation windows opened around the outer wall of the welding box (1). A protective door (2) is rotatably arranged in each of the operation windows. It is characterized in that, It also includes: A loading rotating mechanism (4), which is arranged inside the welding box (1) and is used to clamp and transfer the milling cutter to be welded through the milling cutter clamping assembly (42) to complete the raw material supply work in the milling cutter welding process; A loading auxiliary mechanism (3), which is arranged at the bottom of the inner cavity of the welding box (1) and the loading rotating mechanism (4) is sleeved on the outer wall of the loading auxiliary mechanism (3), and is used to cooperate with the loading rotating mechanism (4) to complete the automatic clamping of the milling cutter workpiece and the automatic flipping and welding operations on different welding positions of the milling cutter workpiece in sequence; An arc welding manipulator (5), which is arranged on the top of the loading auxiliary mechanism (3) and is used to perform welding operations on the milling cutter workpiece reaching the preset position according to the welding control instructions at different positions.

2. The feeding device for the milling cutter workpiece of a milling cutter welding machine according to claim 1, characterized in that: The loading auxiliary mechanism (3) includes a base (31) and a column (32) fixedly arranged on the top of the base (31). A first toothed ring (33) is fixedly arranged on the outer wall of the column (32) through a bracket, and a plurality of loading control components (34) for controlling different weld positions of the welded milling cutter workpiece are uniformly arranged on the outer wall of the column (32). On one side of the top of the base (31), a servo motor (35) is also fixedly arranged. A worm (36) for driving the loading rotating mechanism (4) to rotate is fixedly arranged on the output shaft of the servo motor (35), and a first driving ring (37) is also fixedly arranged on the top of the base (31).

3. The milling cutter workpiece loading device of a milling cutter welding machine according to claim 2, characterized in that: The loading control component (34) includes a first mounting bracket (341) and a blade support plate (343) fixedly arranged on the upper and lower sides of the outer wall of the column (32) respectively. A blade placement cylinder (342) for storing welding parts is fixedly arranged inside the first mounting bracket (341) and above the blade support plate (343). A plurality of guiding balls (344) are evenly rotatably arranged at one end of the blade support plate (343) away from the column (32), and a cylinder (345) is also fixedly arranged on one side of the top of the blade support plate (343) close to the column (32). A push plate (346) is fixedly arranged at the output end of the cylinder (345). An electromagnet mounting groove is formed at the end of the push plate (346), and an electromagnet block is fixedly arranged in the electromagnet mounting groove.

4. The cutter workpiece loading device of a milling cutter welding machine according to claim 3, characterized in that: A vertical plate is also fixedly arranged at the bottom of the blade support plate (343). A first trigger switch (347) and a second trigger switch (348) for controlling the operation of the cylinder (345) and the electromagnet block are respectively fixedly arranged at the upper and lower positions of the side wall of the vertical plate. A second mounting bracket (349) is also fixedly arranged on the side wall of the column (32) and on one side of the first mounting bracket (341). A third trigger switch (3410) for controlling the arc welding manipulator (5) to perform welding operations directly in front of the second mounting bracket (349) is fixedly arranged on the side wall of the second mounting bracket (349).

5. The feeding device for the milling cutter workpiece of a milling cutter welding machine according to claim 2, characterized in that: The feeding and rotating mechanism (4) includes a turntable (41) rotatably sleeved on the outer wall of the column (32). A plurality of milling cutter clamping components (42) for clamping milling cutter workpieces and performing welding feeding work are uniformly arranged on the top of the turntable (41). And a worm gear (43) meshed with the worm (36) is fixedly arranged at the center position of the bottom of the turntable (41). A plurality of avoidance through grooves for providing moving space for the milling cutter clamping components (42) at corresponding positions are uniformly formed on the top of the turntable (41).

6. The feeding device for the milling cutter workpiece of a milling cutter welding machine according to claim 5, characterized in that: The milling cutter clamping component (42) includes a cylinder body (421) rotatably arranged on the top of the turntable (41) through a bearing frame (4216). One end of the cylinder body (421) is provided with a support tube assembly for adjusting the support length according to the length of the milling cutter workpiece. A plurality of adjusting cavities (426) are uniformly formed on the outer wall of the cylinder body (421). A clamping unit for clamping the outer wall of the milling cutter workpiece is arranged inside each adjusting cavity (426). A clamping driving component for driving the clamping units at multiple positions to perform clamping actions or release clamping actions synchronously is also slidably sleeved on the outer wall of the cylinder body (421). A driving rod (4219) is also arranged on one side of the bearing frame (4216) far away from the cylinder body (421).

7. The feeding device for the milling cutter workpiece of a milling cutter welding machine according to claim 6, characterized in that: The support tube assembly includes a support cylinder (422) fixedly arranged at one end of the cylinder body (421). A length adjusting cylinder (423) is slidably sleeved on the outer wall of the support cylinder (422). And a second tooth ring (425) meshed with the first tooth ring (33) is fixedly sleeved on one side of the outer wall of the support cylinder (422) close to the cylinder body (421). A positioning clamping unit (424) is arranged at the relative positions on the upper and lower sides of the inner wall of the length adjusting cylinder (423). The two positioning clamping units (424) form pre-clamping of the milling cutter workpiece from the relative positions on the upper and lower sides. The positioning clamping unit (424) includes a clamping column (4241) slidably penetrating through the length adjusting cylinder (423). A limiting plate (4242) is fixedly arranged at one end of the clamping column (4241) and inside the length adjusting cylinder (423). And a first spring (4243) is slidably sleeved on the outer wall of the clamping column (4241) between the limiting plate (4242) and the inner wall of the length adjusting cylinder (423).

8. The feeding device for the milling cutter workpiece of a milling cutter welding machine according to claim 6, characterized in that: The clamping unit includes a wedge block (427) slidably arranged in the adjusting cavity (426). Lift rods (428) are fixedly arranged on both sides of the bottom of the wedge block (427). The bottom ends of the two lift rods (428) slidably penetrate through the adjusting cavity (426) and are jointly fixedly provided with an arc-shaped clamping block (429). A second spring (4210) is slidably sleeved on the outer wall of the lift rod (428) between the wedge block (427) and the inner wall of the adjusting cavity (426).

9. The feeding device for the milling cutter workpiece of a milling cutter welding machine according to claim 6, characterized in that: The clamping drive assembly includes a second drive ring (4211) slidably sleeved on the outer wall of the cylinder body (421). A position adjustment ring (4214) is slidably sleeved on the outer wall of the second drive ring (4211). An annular sleeve (4215) is rotatably sleeved on the outer wall of the position adjustment ring (4214). A carrier (4216) is fixedly arranged at the bottom of the annular sleeve (4215). A guide rod (4217) is fixedly arranged on the side wall of the carrier (4216). The guide rod (4217) slidably penetrates through the carrier (4216) and extends to the outside. A third spring (4218) is also slidably sleeved on the outer wall of the guide rod (4217). A chute (4212) is formed at the top of the second drive ring (4211). And a scale wire groove (4213) for marking the position of the position adjustment ring (4214) is formed at the top of the second drive ring (4211) and on one side of the chute (4212).

10. The milling cutter workpiece feeding device of a milling cutter welding machine according to claim 1, characterized in that: The milling cutter assembly (6) includes a cutter handle (61) and a cutter head fixedly arranged at one end of the cutter handle (61). Positioning grooves (62) are formed on both the upper and lower sides of the outer wall of the cutter handle (61). A plurality of cutter grooves (63) are evenly formed on the outer wall of the cutter head. A cutter blade (64) is welded inside each cutter groove (63) by means of arc welding.

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