Saw chain, saw chain production equipment and production process

Abstract

The present invention discloses a saw chain, saw chain production equipment, and a production process thereof. The saw chain comprises a cutter head and a guide tooth. The guide tooth comprises a tooth cutting portion and a guide blade portion. The tooth cutting portion is configured to contact a guide gear that drives the chain saw, and a first opening is defined in the tooth cutting portion. The present invention provides a saw chain, saw chain production equipment, and a production process thereof. In this saw chain, compressed gas and / or oil is injected into the first opening, and sprayed out of a second opening onto the cutter head, thereby directly cooling and / or lubricating the cutter head, thereby improving cutting efficiency. The production equipment can significantly reduce production costs and enhance the core competitiveness of this type of saw chain.

Description

Technical Field

[0001] The present invention relates to the technical field of chain saws, in particular to a saw chain, a saw chain production device and a production process thereof. Background Art

[0002] Saw chain is a chain used for cutting, usually composed of a cutter head, guide teeth, connecting pieces and rivets. Saw chain is generally used to load on chain saws for cutting or grooving materials such as wood and stone;

[0003] When a chainsaw is working, the material is cut by the saw chain, and the temperature of the saw chain at the cutting position will rise rapidly, especially the temperature of the cutter head will rise sharply during long-term operation. The existing heat dissipation mode is to dissipate heat naturally in the air, which has low heat dissipation efficiency and cannot work for a long time. Summary of the Invention

[0004] The present invention addresses the deficiencies in the prior art and provides a saw chain, a saw chain production device and a production process thereof.

[0005] In order to solve the above technical problems, the present invention is solved through the following technical solutions: a saw chain includes a cutter head and a middle guide tooth, the middle guide tooth includes a tooth cutting portion and a guide knife portion, the tooth cutting portion is used to contact the guide gear that drives the chain saw to rotate, a first opening is opened at the tooth cutting portion, and a second opening is opened at the guide knife portion. The first opening and the second opening are connected by a channel, the second opening is aligned with the cutting edge position of the cutter head, the tooth cutting portion contacts and cooperates with the guide tooth, and a fluid is injected at the first opening and sprayed from the second opening onto the cutter head.

[0006] The intended effect is that compressed gas and / or oil is injected at the first opening and sprayed out from the second opening onto the cutter head, thereby directly cooling and / or lubricating the cutter head, thereby improving cutting efficiency.

[0007] In the above solution, preferably, a guide groove is provided on the side wall between the upper tooth cutting portion and the guide knife portion of the middle guide tooth, the middle position of the guide groove is closed by a sealing plate, and a second opening and a first opening are left at the upper and lower ends respectively.

[0008] The production equipment of saw chains includes a main frame, which is provided with a positioning part for positioning the middle guide teeth and a processing device for cutting and sealing the side walls of the middle guide teeth. The processing device includes a cutting and sealing unit for processing the guide groove, a moving unit for driving the cutting and sealing unit to move, and a pressing unit for driving the sealing plate to move. The cutting and sealing unit includes a cutting blade for cutting and a rolling welding roller for packaging. The cutting blade and the rolling welding roller can be switched to cut or roll weld the side walls of the middle guide teeth. The pressing unit provides a sealing plate for the rolling welding roller after cutting is completed.

[0009] The beneficial effect is that after the middle guide teeth are stamped and blanked, the second opening, the first opening and the connecting channel are processed by cutting and welding, so that the middle guide teeth with the same structure as precision casting can be processed, which greatly reduces production costs and enhances the core competitiveness of this type of saw chain.

[0010] In the above solution, preferably, the moving unit includes a track track and a sliding frame that is slide-guided and arranged in the track track, and the cutting and sealing unit is arranged on the sliding frame, so that the cutting and sealing unit can be processed along the outer side wall of the middle guide tooth.

[0011] In the above scheme, preferably, the sliding frame includes a sliding member and a mounting frame elastically slidingly arranged on the sliding member, and a double roller shaft is provided on the sliding member, and the double roller shaft is simultaneously slidably arranged on the track rail. When the sliding member moves, the sliding member always faces the outer wall of the middle guide tooth, and the cutting and sealing unit is set on the mounting frame.

[0012] In the above scheme, preferably, the cutting blade and the rolling welding roller are arranged on the upper and lower parts of the integrated shaft, the cutting and sealing unit also includes a driving motor and a clutch, a transmission part is arranged under the integrated shaft, and the clutch is used to drive the integrated shaft to move up and down, thereby making the transmission part transmit or disengage the transmission with the driving motor, and at the same time making the cutting blade or the rolling welding roller located in the processing position.

[0013] In the above solution, preferably, a winding unit is provided behind the track rail, the winding unit includes a winding motor and a winding rope, the winding rope is connected to the sliding member, and the winding motor drives the sliding member to move on the track rail when working.

[0014] In the above solution, preferably, the winding rope is located in the track track, and an elastic member is sleeved on the winding rope, and both ends of the elastic member respectively touch the end wall of the sliding member on the track track.

[0015] In the above scheme, preferably, the clutch member is a lifting member, which rises upward to drive the integrated shaft to separate from the drive motor. At the same time, the seam welding roller is located on the outer wall side of the middle guide tooth, and the seam welding roller is energized to perform seam welding.

[0016] Production process of saw chain production equipment:

[0017] S1: The robot uses the suction cup to place the guide gear on the positioning part of the main frame for positioning, and the suction cup provides downward pressure to press it.

[0018] S2: The driving motor is started, the sliding member moves on the track, and the cutting blade cuts a groove on the outer side wall of the middle guide gear.

[0019] S3: After the groove is cut, the sliding part returns and the seam welding roller enters the working position. At the same time, the pressing unit pushes the sealing plate in and presses it to cover the cut groove.

[0020] S4: The sliding part moves on the track again, and the seam welding roller moves into the sealing plate for seam welding.

[0021] The beneficial effects of the present invention are: the present invention provides a saw chain, saw chain production equipment and production process thereof, such saw chain, compressed gas and / or oil is injected into the first opening and sprayed from the second opening onto the cutter head, thereby directly cooling and / or lubricating the cutter head, thereby improving cutting efficiency, the production equipment can greatly reduce production costs and enhance the core competitiveness of such saw chains. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 Schematic diagram of the saw chain of the present invention.

[0023] Figure 2 Schematic diagram of the saw chain production equipment of the present invention.

[0024] Figure 3 Schematic diagram of the cutting and sealing unit and the moving unit of the present invention.

[0025] Figure 4 Schematic diagram of the clutch member of the present invention when it is not extended.

[0026] Figure 5 Schematic diagram of the clutch member of the present invention when extended.

[0027] Figure 6 Schematic diagram of guide teeth in embodiment 1 of the present invention.

[0028] Figure 7 Schematic diagram of guide teeth in embodiment 2 of the present invention. DETAILED DESCRIPTION

[0029] The present invention is further described in detail below with reference to the accompanying drawings and specific embodiments: Example 1

[0030] See also Figures 1-6 ,

[0031] The saw chain includes a cutter head 1, a guide tooth 2, a connecting plate and a rivet. The cutter head 1 and the guide tooth 2 are connected by a connecting plate and fixed by rivets. The guide tooth 2 is provided with a tooth cutting portion 21 and a guide knife portion 22. The tooth cutting portion 21 is located below the guide tooth 2 and is connected to the guide gear in the chain saw. The rotation of the guide gear drives the entire saw chain to rotate. The guide knife portion 22 is located above the guide tooth 2 and a notch is provided at the rear of the guide knife portion 22. The notch faces the cutter head 1. The tooth cutting portion 21 is provided with a first An opening 211 and a second opening 221 are provided at the guide blade portion 22. The first opening 211 and the second opening 221 are connected by a channel, and the second opening 221 is located in the recess, so that the second opening 221 faces the cutting edge of the cutter head 1. After the saw chain is loaded on the saw chain, a fluid can be introduced through the first opening 211 and sprayed onto the cutter head 1 through the second opening 221. The fluid can be compressed air and / or oil, thereby cooling and / or lubricating the cutter head 1.

[0032] The initial middle guide tooth 2 is first formed by stamping, and then a groove is cut along the outer wall of the middle guide tooth 2 to connect the tooth cutting portion 21 and the guide knife portion 22. Then, a sealing plate is welded to the outside of the guide groove, and a first opening 211 is left in the tooth cutting portion 21, and a second opening 221 is left in the recess behind the guide knife portion 22, thereby realizing the above-mentioned processing of the middle guide tooth 2.

[0033] At the same time, the above-mentioned middle guide gear 2 can also be processed by precision casting technology, but the production cost of precision casting is relatively high, so it is not applicable. Therefore, it is more appropriate to obtain the above-mentioned product by cutting and welding after stamping. Therefore, the following device is designed specifically for producing the above-mentioned middle guide gear 2.

[0034] The production equipment of the saw chain includes a main frame 3, and a positioning part 31 for positioning and installing the middle guide gear 2 is provided on the main frame 3. The positioning part 31 is two positioning shafts. The middle guide gear 2 is positioned by the two positioning shafts, and the middle guide gear 2 is moved from other positions to the positioning part 31 of the main frame 3 by the suction cup. The middle guide gear 2 is positioned on the main frame 3 by the positioning part 31, and the middle guide gear 2 is pressed downward by the suction cup, so that the middle guide gear 2 is positioned and locked on the main frame 3.

[0035] The main frame 3 is also provided with a processing device 4 for processing the guide tooth 2. The processing device 4 includes a cutting and sealing unit 41, a moving unit 42 and a pressing unit 43. The moving unit 42 includes a track track 421, a sliding frame 422 and a winding unit 423. The track track 421 is a track guide groove. The sliding frame 422 consists of a sliding member 4221 and a mounting frame 4222. Two rollers are provided on the sliding member 4221, and the diameters of the two rollers are consistent with the width of the track track 421. The two rollers are slidably set on the track track 421 at the same time. The mounting frame 4222 is elastically guided and slidably set on the sliding member 4221. When the sliding member 4221 slides on the track track 421, the mounting frame 4222 It is always directed toward the side wall of the middle guide tooth 2 located on the main frame 3, and the distance between the sliding member 4221 and the side wall of the middle guide tooth 2 changes little during the entire sliding process, and the existing distance change is adjusted by elastic sliding. The winding unit 423 includes a winding motor 4231 and a winding rope 4232. The winding motor 4231 is arranged on the outside of the end of the track rail 421, and one end of the winding rope 4232 is arranged on the winding disk of the winding motor 4231, and the other end enters the track rail 421 and is arranged on the roller shaft of the sliding member 4221 along the track rail 421, and an elastic member 4233 is sleeved on the winding rope 4232, and the two ends of the elastic member 4233 respectively touch the roller shaft and the end of the track rail 421.

[0036] When the winding motor 4231 is not winding, under the action of the elastic member 4233, the roller in front of the sliding member 4221 touches the front end wall of the track rail 421. After the winding motor 4231 rotates, the winding rope 4232 is tightened, thereby pulling the sliding member 4221 to slide along the track rail 421.

[0037] The cutting and sealing unit 41 includes an integrated shaft 413, a drive motor 415 and a clutch 416. The integrated shaft 413 is rotated and slid up and down on the upper mounting frame 4222, and a cutting blade 411 is provided at the upper end of the integrated shaft 413. A roll welding roller 412 is provided below the cutting blade 411, so that the integrated shaft 413 is integrated with a cutting tool for cutting grooves and a welding tool for roll welding. A transmission member 414 is provided at the lower end of the integrated shaft 413. 414 is a polygonal shaft, the driving motor 415 is fixedly arranged on the mounting frame 4222 of the lower layer, and a polygonal groove body adapted to the transmission member 414 is opened on the center of the driving shaft of the driving motor 415, the clutch member 416 is a lifting member, and the lifting member can be a pneumatic lifting cylinder or an electric lifting cylinder. An annular groove 4131 is provided on the integrated shaft 413, and a ring sleeve 4161 is provided on the telescopic rod head of the clutch member 416. The ring sleeve 4161 is clamped on the annular groove 4131, and the clutch member 416 is clamped on the annular groove 4131. The clutch 416 extends and retracts, driving the integrated shaft 413 to move up and down. The integrated shaft 413 moves downward, and the transmission member 414 at the lower end enters the drive shaft of the drive motor 415. At this time, the drive motor 415 rotates to drive the integrated shaft 413 to rotate together, thereby rotating the cutting blade 411, and at this time, the cutting blade 411 is located at the height of the side of the middle guide tooth 2. The cutting blade 411 can perform a groove operation on the middle of the side of the middle guide tooth 2, and the clutch 416 rises upward, driving the integrated shaft 413 to move upward, thereby causing the transmission member 414 to leave the drive motor 415, and the transmission between the two is disconnected. At this time, the seam welding roller 412 is located at the height of the side of the middle guide tooth 2, and an electrode contact plate is provided on the lower end surface of the upper end mounting frame 4222. The clutch 416 drives the integrated shaft 413 to move upward, thereby causing the upper end surface of the boss with the annular groove 4131 to touch the electrode contact plate, thereby energizing the seam welding roller 412, and the seam welding roller 412 can perform seam welding operation.

[0038] The upper end of the cutting disc 411 is provided with a limiting truncated cone 4111. When the grooving operation is performed, the cutting disc 411 rotates and the sliding member 4221 slides on the track rail 421. Initially, the cutting disc 411 does not contact the middle guide tooth 2. After moving a certain distance, it starts to cut the outer wall of the middle guide tooth 2. After the peripheral wall of the limiting truncated cone 4111 touches the outer wall of the middle guide tooth 2, it starts to cut grooves of equal depth on the outer wall of the middle guide tooth 2. At this time, the peripheral wall of the limiting truncated cone 4111 touches the outer wall of the middle guide tooth 2, and cooperates with the elastic sliding mounting frame 4222 to ensure that the cutting depth of the cutting disc 411 remains consistent during the entire cutting process except the initial section. At the same time, it can also offset the change in the spacing between the sliding member 4221 and the outer wall of the middle guide tooth 2 during the sliding process on the track rail 421, thereby ensuring that the depth of the cutting groove on the middle guide tooth 2 remains consistent.

[0039] After the cutting is completed, the winding motor 4231 stops running, and the sliding member 4221 returns to its initial state under the action of the elastic member 4233. When returning to the initial position, the cutting blade 411 does not contact the middle guide tooth 2, and then the clutch member 416 extends at this time, so that the cutting blade 411 can rise without interference, and at the same time the seam welding roller 412 rises to the same height as the middle guide tooth 2. After the seam welding roller 412 rises, the seam welding roller 412 is energized.

[0040] The clamping unit 43 includes a telescopic part, and a suction cup is provided at the front end of the telescopic part. A robot, an automatic loader or a manual method sends the sealing plate to the suction cup at the front end of the telescopic part, and the suction cup adsorbs the sealing plate. The sealing plate is a plate formed according to the shape of the side wall of the middle guide tooth 2. The sealing plate is located on one side of the cutting groove body of the middle guide tooth 2. When the clutch part 416 extends upward, the telescopic part of the clamping unit 43 also extends forward at the same time, thereby pressing the sealing plate against the groove body, thereby blocking the cutting groove in the middle part of the middle guide tooth 2.

[0041] At this time, the winding motor 4231 works again, pulling the sliding part 4221 to move on the track track 421, and the rolling welding roller 412 is pressed against the side wall of the middle guide tooth 2. After pressing against the sealing plate, the sealing plate is roll-welded to the side wall of the middle guide tooth 2. When the sealing plate is partially welded, the suction cup on the clamping unit 43 is released, and the telescopic part retracts, thereby removing the obstruction to the moving path of the rolling welding roller 412, and allowing the rolling welding roller 412 to complete the welding of the sealing plate. After the welding is completed, a first opening 211 and a second opening 221 are left at the head and tail ends of the cutting groove respectively, and the first opening 211 and the second opening 221 are connected by a blocked cutting groove body. At this time, the processing of the middle guide tooth 2 is completed.

[0042] After the rolling welding is completed, the winding motor 4231 stops rotating, the sliding member 4221 returns to its initial state under the action of the elastic member 4233, the clutch member 416 drops, and the integrated shaft 413 is combined with the drive motor 415 again and returns to its initial state. At this time, the suction cup on the middle guide tooth 2 drives the middle guide tooth 2 after processing to leave the main frame 3.

[0043] The working principle or usage of saw chain production equipment is as follows:

[0044] The guide gear 2 is moved from other positions to the positioning portion 31 of the main frame 3 by the suction cup, and the guide gear 2 is pressed downward by the suction cup, so that the guide gear 2 is positioned and locked on the main frame 3.

[0045] The driving motor 415 starts to rotate, driving the cutting blade 411 to rotate. At the same time, the winding motor 4231 starts to rotate, pulling the sliding member 4221 to move on the track rail 421. When performing the grooving operation, the cutting blade 411 does not contact the middle guide tooth 2 at the beginning. After moving a certain distance, it starts to cut the outer wall of the middle guide tooth 2. After the peripheral wall of the limiting round table 4111 touches the outer wall of the middle guide tooth 2, it starts to cut grooves of equal depth on the outer wall of the middle guide tooth 2. At this time, the peripheral wall of the limiting round table 4111 touches the outer wall of the middle guide tooth 2, and cooperates with the elastic sliding mounting frame 4222 to ensure that the cutting depth of the cutting blade 411 remains consistent during the entire cutting process except the initial segment. At the same time, it can also offset the change in the spacing between the sliding member 4221 and the outer wall of the middle guide tooth 2 during the sliding process on the track rail 421, ensuring that the depth of the cutting groove on the middle guide tooth 2 remains consistent.

[0046] After the cutting is completed, the winding motor 4231 stops running, and the sliding member 4221 returns to its initial state under the action of the elastic member 4233. When returning to the initial position, the cutting blade 411 does not contact the middle guide tooth 2, and then the clutch member 416 extends at this time, so that the cutting blade 411 can rise upward without interference, and at the same time the rolling welding roller 412 rises to the same height as the middle guide tooth 2. After the rolling welding roller 412 rises, the rolling welding roller 412 is energized.

[0047] The blocking plate is delivered to the suction cup at the front end of the telescopic part by a robot, an automatic loader or manually. The suction cup absorbs the blocking plate. When the clutch part 416 extends upward, the telescopic part of the clamping unit 43 also extends forward at the same time, causing the blocking plate to press against the groove body, thereby covering the groove in the middle part of the middle guide tooth 2.

[0048] At this time, the winding motor 4231 works again, pulling the sliding part 4221 to move on the track track 421, and the rolling welding roller 412 is pressed against the side wall of the middle guide tooth 2. After pressing against the sealing plate, the sealing plate is roll-welded to the side wall of the middle guide tooth 2. When the sealing plate is partially welded, the suction cup on the clamping unit 43 is released, and the telescopic part retracts, thereby removing the obstruction to the moving path of the rolling welding roller 412, and allowing the rolling welding roller 412 to complete the welding of the sealing plate. After the welding is completed, a first opening 211 and a second opening 221 are left at the head and tail ends of the cutting groove respectively, and the first opening 211 and the second opening 221 are connected by a blocked cutting groove body. At this time, the processing of the middle guide tooth 2 is completed.

[0049] After the rolling welding is completed, the winding motor 4231 stops rotating, the sliding member 4221 returns to its initial state under the action of the elastic member 4233, the clutch member 416 drops, and the integrated shaft 413 is combined with the drive motor 415 again and returns to its initial state. At this time, the suction cup on the middle guide tooth 2 drives the middle guide tooth 2 after processing to leave the main frame 3. Example 2

[0050] See also Figure 1-Figure 5 and Figure 7 ,

[0051] Compared with the first embodiment, the difference lies in the structure of the middle guide tooth 2 and the processing technology thereof, which are the same as those of the first embodiment.

[0052] A cutting groove is provided on the middle guide tooth 2, and an insert with a first opening 211 and a second opening 221 is embedded in the cutting groove. The insert can be installed in the cutting groove by welding or clamping. If welding is used, the processing equipment and processing technology are the same as those in Example 1, except that the formed sealing plate adsorbed by the clamping unit 43 is changed into an insert. The clamping device 43 inserts the insert into the cutting groove when extending forward, and the rolling welding roller 412 roll-welds the insert and the cutting groove together when moving.

[0053] If the insert is clamped in the cutting groove by an over-win fit, the clamping device 43 may not be able to completely embed the insert into the cutting groove when it is extended. At this time, the rolling welding roller 412 no longer performs power welding, but performs rolling pressing to roll the insert into the cutting groove.

[0054] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. Production equipment for producing saw chains, characterized by: A saw chain, comprising a cutter head (1) and a middle guide tooth (2), the middle guide tooth (2) comprising a tooth cutting portion (21) and a guide knife portion (22), the tooth cutting portion (21) being used to contact a guide gear that drives the chain saw to rotate, a first opening (211) being provided at the tooth cutting portion (21), a second opening (221) being provided at the guide knife portion (22), the first opening (211) and the second opening (221) being connected via a channel, the second opening (221) being aligned with the cutting edge of the cutter head (1), the tooth cutting portion (21) being in contact with the guide tooth, a fluid being injected at the first opening (211) and ejected from the second opening (221) onto the cutter head (1); A guide groove is provided on the side wall between the upper tooth cutting portion (21) and the guide knife portion (22) of the middle guide tooth (2), the middle position of the guide groove is closed by a blocking plate, and a second opening (221) and a first opening (211) are respectively left at the upper and lower ends; The production equipment includes a main frame (3), the main frame (3) is provided with a positioning portion (31) for positioning the middle guide tooth (2) and a processing device (4) for cutting and sealing the side wall of the middle guide tooth (2). The processing device (4) comprises a cutting and sealing unit (41) for processing the guide groove, a moving unit (42) for driving the cutting and sealing unit (41) to move, and a pressing unit (43) for driving the sealing plate to move; The cutting and sealing unit (41) includes a cutting blade (411) for cutting and a roll welding roller (412) for sealing. The cutting blade (411) and the roll welding roller (412) can be switched to perform cutting or roll welding on the side wall of the middle guide tooth (2). The pressing unit (43) provides a sealing plate for the seam welding roller (412) after the cutting is completed.

2. The saw chain production equipment according to claim 1, characterized in that: The moving unit (42) comprises a track rail (421) and a sliding frame (422) arranged to slide in the track rail (421), and the cutting and sealing unit (41) is arranged on the sliding frame (422), so that the cutting and sealing unit (41) can be processed along the outer side wall of the middle guide tooth (2).

3. The saw chain production equipment according to claim 2, characterized in that: The sliding frame (422) comprises a sliding member (4221) and a mounting frame (4222) elastically slidingly arranged on the sliding member (4221); a double roller is arranged on the sliding member (4221); the double roller is simultaneously slidingly arranged on the track rail (421); when the sliding member (4221) moves, the sliding member (4221) always faces the outer wall of the middle guide tooth (2); and the cutting and sealing unit (41) is arranged on the mounting frame (4222).

4. The saw chain, saw chain production equipment and production process according to claim 1, characterized in that: The cutting blade (411) and the roll welding roller (412) are arranged on the upper and lower sides of the integrated shaft (413). The cutting and sealing unit (41) further includes a driving motor (415) and a clutch (416). A transmission member (414) is arranged below the integrated shaft (413). The clutch (416) is used to drive the integrated shaft (413) to move up and down, thereby causing the transmission member (414) to transmit or disengage transmission from the driving motor (415), and at the same time, the cutting blade (411) or the roll welding roller (412) to be located at a processing position.

5. The saw chain production equipment according to claim 3, characterized in that: A winding unit (423) is provided behind the track rail (421). The winding unit (423) comprises a winding motor (4231) and a winding rope (4232). The winding rope (4232) is connected to the sliding member (4221). When the winding motor (4231) is in operation, it drives the sliding member (4221) to move on the track rail (421).

6. The saw chain production equipment according to claim 5, characterized in that: The winding pull rope (4232) is located in the track track (421), and an elastic member (4233) is sleeved on the winding pull rope (4232), with both ends of the elastic member (4233) respectively contacting the end wall of the sliding member (4221) on the track track (421).

7. The saw chain production equipment according to claim 4, characterized in that: The clutch member (416) is a lifting member that rises upward to drive the integrated shaft (413) to separate from the drive motor (415). At the same time, the roll welding roller (412) is located on the outer wall side of the middle guide tooth (2), and the roll welding roller (412) is energized to enable roll welding.

8. A production process using the saw chain production equipment according to any one of claims 4 or 7, characterized in that: S1: The manipulator places the middle guide gear (2) on the positioning portion (31) of the main frame (3) through the suction cup for positioning, and the suction cup provides downward pressure for compaction; S2: the driving motor (415) is started, the sliding member (4221) moves on the track (421), and the cutting blade (411) performs a groove cutting operation on the outer side wall of the middle guide tooth (2); S3: After the groove cutting is completed, the sliding member (4221) returns, and the rolling welding roller (412) enters the working position. At the same time, the pressing unit (43) pushes the sealing plate in and presses it to cover the cutting groove; S4: The sliding member (4221) moves on the track track (421) again, and the roll welding roller (412) performs roll welding on the moved-in sealing plate.

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