A vacuum welding furnace for tool processing

Abstract

This invention discloses a vacuum welding furnace for tool processing, belonging to the field of tool processing technology. The vacuum welding furnace for tool processing includes a furnace body, a furnace cover, and an opening / closing drive mechanism connected to the furnace cover; a vacuum pumping device is installed on the furnace body; a gripper unit for clamping or releasing the tool head and tool shank is installed on the furnace body; a wire rope, an electric hoist for winding the wire rope, an operating platform for mounting the electric hoist, and an upper magnet adsorption unit installed at the end of the wire rope are installed outside the furnace body; a welding platform is installed inside the furnace body, and a lower magnet adsorption unit is installed on the welding platform; a welding torch is installed on the welding platform, and an adjustment seat that rotates with the welding torch is installed on the welding platform. The vacuum welding furnace for tool processing provided by this invention can feed the tool head and tool shank into the furnace body for welding, and remove the welded tool head and tool shank.

Description

Technical Field

[0001] This invention belongs to the field of cutting tool processing technology, and specifically relates to a vacuum welding furnace for cutting tool processing. Background Technology

[0002] In the field of cutting tool manufacturing, especially for split-type cutting tools, a reliable connection between the tool tip and the tool holder is required. Welding is currently one of the most commonly used connection methods. To ensure welding quality and reduce welding defects, vacuum welding furnaces are widely used in such precision welding processes.

[0003] Existing vacuum welding furnaces for tool processing typically include a furnace body, a furnace lid, a vacuum pumping device, and a clamping device for holding the workpieces to be welded. The basic workflow is as follows: the tool head and tool holder are aligned manually or with simple tools and placed in a specific position inside the furnace; the furnace lid is closed and a vacuum is drawn; then, the joint is heated and welded using a welding torch. In practical applications, the following technical problems exist: The process of loading and unloading workpieces is complex. In practice, the cutting heads and shanks to be welded must be manually placed one by one into the welding station inside the furnace. After welding, they still need to be manually removed. The furnace body retains high temperatures after welding, posing a risk of burns to operators who come into close contact with the workpieces. Therefore, this application proposes a vacuum welding furnace for tool processing. Summary of the Invention

[0004] The purpose of this invention is to provide a vacuum welding furnace for tool processing, in order to solve the problems mentioned in the background art, such as the complex workpiece loading and unloading process, the need for manual placement of the tool head and tool holder to be welded into the welding station in the furnace during operation, the need for manual removal after welding, and the risk of burns to operators due to the high temperature remaining inside the furnace after welding.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a vacuum welding furnace for tool processing, comprising a furnace body, wherein a furnace cover is provided on the furnace body and an opening and closing drive mechanism connected to the furnace cover; The furnace body is equipped with a vacuum pumping device; The furnace body is equipped with a gripper unit for clamping or releasing the cutter head and the cutter bar; The furnace body is equipped with a steel wire rope, an electric hoist for winding the steel wire rope, an operating platform for installing the electric hoist, and an upper magnet adsorption unit installed at the end of the steel wire rope. The furnace body is equipped with a welding platform and a lower magnet adsorption unit installed on the welding platform; A welding torch is provided at the welding platform, and an adjustment seat that rotates with the welding torch and an adjustment power unit connected to the welding torch are provided on the welding platform.

[0006] Preferably, the opening and closing drive mechanism includes a pressure plate and a hinge seat that rotates with the pressure plate and is mounted on the furnace body. There are three pressure plates, and two pressure plate arrays are distributed on the furnace body.

[0007] Preferably, the opening and closing drive mechanism further includes a power mechanism, one end of which is movably connected to the pressure plate, and the other end of which is movably connected to the furnace body.

[0008] Preferably, the furnace body is provided with a support frame, and the support frame is provided with a working surface that is inclined downwards, and the power mechanism is provided on the working surface.

[0009] Preferably, the gripper unit includes an upper clamping plate and a lower clamping plate. At least two upper clamping plates are provided, and the upper clamping plates are aligned with the tool holder. At least two lower clamping plates are provided, and the lower clamping plates are aligned with the tool head.

[0010] Preferably, the gripper unit is provided with a gripping box, a lead screw inserted into the gripping box, and a gripping motor mounted on the gripping box and connected to the lead screw via a drive. The upper clamping plate is slidably engaged with the gripping box, and the upper clamping plate is rotatably engaged with the lead screw. The threads of the lead screw at the two upper clamping plates have opposite directions.

[0011] Preferably, the clamping box is provided with an upper groove that cooperates with the upper magnet adsorption unit, and an upper adsorption plate is provided in the upper groove.

[0012] Preferably, the clamping box is provided with a lower groove, and a lower adsorption plate is provided in the lower groove, which cooperates with the lower magnet adsorption unit.

[0013] Preferably, one end of the adjusting power unit is movably connected to the welding torch, and the other end of the adjusting power unit is movably connected to the welding platform. The adjusting power unit and the gripper unit are staggered vertically.

[0014] Preferably, a vertical plate is provided between the two clamping boxes.

[0015] Beneficial effects: This invention provides a vacuum welding furnace for tool processing. When the electric hoist is turned on, it can send the gripper unit into or out of the furnace body. The upper magnetic adsorption unit can be an electromagnet, and the upper groove cooperates with the electromagnet. When the electromagnet is turned on, it can magnetically attract the upper adsorption plate in the upper groove, thus connecting the wire rope and the gripper unit together. When the lower magnetic adsorption unit is turned on, the gripper unit can be fixed and released, so that after the gripper unit is sent into the furnace body, it can be fixed inside the furnace body.

[0016] The present invention provides a vacuum welding furnace for tool processing. When the rotary motor is turned on, it can drive the small gear to rotate. The small gear and the large gear are connected by gear meshing, which can drive the large gear to rotate. The rotating plate is mounted on the large gear. When the rotating plate rotates, it can drive the welding gun on it to rotate. In this way, it can rotate around the tool head, thereby forming a complete weld at the connection between the tool head and the tool holder.

[0017] This invention provides a vacuum welding furnace for tool processing. When the clamping motor is turned on, it drives the lead screw to rotate. The lead screw can move two upper clamping plates closer together or further apart. When the two upper clamping plates are close together, they can clamp the tool shank located between them. When the two upper clamping plates are far apart, they can release the tool shank. The structure of the lower clamping plate is the same as that of the upper clamping plate. The two lower clamping plates can clamp or release the tool head. In this way, the gripper unit can fix the position of the tool head and the tool shank. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the vacuum welding furnace for tool processing in this invention; Figure 2 This is a side view of the vacuum welding furnace for tool processing in this invention; Figure 3 This is a bottom view of the vacuum welding furnace for tool processing in this invention; Figure 4 For the present invention Figure 3 Enlarged structural diagram at point A; Figure 5 This is one of the schematic diagrams of the internal structure of the vacuum welding furnace for tool processing in this invention; Figure 6 This is the second schematic diagram of the internal structure of the vacuum welding furnace for tool processing in this invention; Figure 7 For the present invention Figure 6 Enlarged structural diagram at point B; Figure 8 For the present invention Figure 6 A magnified structural diagram at point C.

[0019] Explanation of reference numerals in the attached figures: 1. Furnace body; 2. Furnace cover; 3. Opening and closing drive mechanism; 301. Pressure plate; 302. Hinge seat; 303. Power mechanism; 4. Vacuum pumping device; 5. Gripper unit; 501. Upper clamping plate; 502. Lower clamping plate; 503. Clamping box; 504. Lead screw; 505. Clamping motor; 6. Wire rope; 7. Electric hoist; 8. Operating table; 9. Upper magnetic adsorption unit; 10. Welding platform; 11. Lower magnetic adsorption unit; 12. Welding torch; 13. Adjustment base; 14. Adjustment power unit; 15. Large gear; 16. Small gear; 17. Rotary motor; 18. Cutting head; 19. Cutting shank. Detailed Implementation

[0020] The specific embodiments of the present invention will be described in detail below, but it should be understood that the scope of protection of the present invention is not limited to the specific embodiments.

[0021] like Figures 1-8 As shown in the figure, an embodiment of the present invention provides a vacuum welding furnace for tool processing, including a furnace body 1, a furnace cover 2 and an opening and closing drive mechanism 3 connected to the furnace cover 2. The opening and closing drive mechanism 3 can drive the furnace cover 2 to open and close, thereby realizing the sealing and opening of the furnace body 1. When the furnace cover 2 is open, it can be used for loading and unloading components such as tool head 18 and tool bar 19. When the furnace cover 2 is closed, the welding work of tool head 18 and tool bar 19 can be performed.

[0022] Specifically, the opening and closing drive mechanism 3 includes a pressure plate 301 and a hinge seat 302 that rotates with the pressure plate 301 and is mounted on the furnace body 1. There are three pressure plates 301, and two pressure plates 301 are arranged in an array on the furnace body 1. The opening and closing drive mechanism 3 also includes a power mechanism 303. One end of the power mechanism 303 is movably connected to the pressure plate 301, and the other end of the power mechanism 303 is movably connected to the furnace body 1. It should be noted that a support frame is provided on the furnace body 1, and a downwardly inclined working surface is provided on the support frame. The power mechanism 303 is set on the working surface.

[0023] For reference Figure 1 The furnace body 1 is equipped with a vacuum device 4. When the furnace cover 2 is closed, the vacuum device 4 can be turned on to create a vacuum environment inside the furnace body 1. This can prevent air interference during the welding process of the connection between the cutter head 18 and the cutter rod 19, resulting in a higher weld strength and a tighter connection between the cutter head 18 and the cutter rod 19.

[0024] In order to clamp and release the positions of the cutter head 18 and the cutter bar 19, a gripper unit 5 for clamping or releasing the cutter head 18 and the cutter bar 19 is provided at the furnace body 1. Specifically, the gripper unit 5 includes an upper clamping plate 501 and a lower clamping plate 502. At least two upper clamping plates 501 are provided and are aligned with the cutter bar 19. At least two lower clamping plates 502 are provided and are aligned with the cutter head 18.

[0025] In order for the upper clamping plate 501 and the lower clamping plate 502 to clamp the corresponding tool bar 19 and tool head 18, a clamping box 503, a lead screw 504 inserted into the clamping box 503, and a clamping motor 505 mounted on the clamping box 503 and connected to the lead screw 504 are provided in the gripper unit 5. The upper clamping plate 501 is slidably engaged with the clamping box 503, and the upper clamping plate 501 is rotatably engaged with the lead screw 504. The threads of the lead screw 504 at the two upper clamping plates 501 have opposite directions.

[0026] When the clamping motor 505 is turned on, it drives the lead screw 504 to rotate. The lead screw 504 can move the two upper clamping plates 501 closer together or further apart. When the two upper clamping plates 501 are closer together, they can clamp the tool bar 19 located between them. When the two upper clamping plates 501 are further apart, they can release the tool bar 19. The structure of the lower clamping plate 502 is the same as that of the upper clamping plate 501. The two lower clamping plates 502 can clamp or release the tool head 18. In this way, the gripper unit 5 can fix the position of the tool head 18 and the tool bar 19, so that the tool head 18 and the tool bar 19 can be aligned during subsequent welding.

[0027] It should be noted that a vertical plate is provided between the two clamping boxes 503. The vertical plate connects the upper and lower clamping boxes 503, and then connects the upper clamping plate 501 and the lower clamping plate 502, so that the unwelded cutter head 18 and cutter bar 19 can abut together, so that the connection between the two fits together, which facilitates the subsequent welding work.

[0028] In order to send the gripper unit 5 into the furnace body 1 or to pull the gripper unit 5 out of the furnace body 1, a wire rope 6, an electric hoist 7 for winding the wire rope 6, an operating platform 8 for installing the electric hoist 7, and an upper magnet adsorption unit 9 installed at the end of the wire rope 6 are provided on the outside of the furnace body 1. The clamping box 503 is provided with an upper groove that cooperates with the upper magnet adsorption unit 9. An upper adsorption plate is provided in the upper groove. Specifically, the upper magnet adsorption unit 9 can be an electromagnet. The upper groove cooperates with the electromagnet. When the electromagnet is turned on, it can magnetically attract the upper adsorption plate in the upper groove. In this way, the wire rope 6 and the gripper unit 5 can be connected together.

[0029] In order to weld the connection between the cutter head 18 and the cutter bar 19, a welding platform 10 is provided inside the furnace body 1, and a lower magnetic adsorption unit 11 is installed on the welding platform 10. The clamping box 503 at the bottom is provided with a lower groove, and a lower adsorption plate is provided in the lower groove. The lower groove cooperates with the lower magnetic adsorption unit 11. The lower magnetic adsorption unit 11 is the same as the upper magnetic adsorption unit 9, and both can be electromagnets. When the lower magnetic adsorption unit 11 is opened, the gripper unit 5 can be fixed and released, so that the gripper unit 5 can be sent into the furnace body 1 and fixed inside the furnace body 1.

[0030] Specifically, a welding torch 12 is provided at the welding platform 10. In order to avoid interference between the welding torch 12 and the cutting head 18 or the gripper unit 5, an adjustment seat 13 that rotates with the welding torch 12 and an adjustment power unit 14 connected to the welding torch 12 are provided on the welding platform 10. The adjustment power unit 14 can be an electric telescopic rod. One end of the adjustment power unit 14 is movably connected to the welding torch 12, and the other end of the adjustment power unit 14 is movably connected to the welding platform 10. The adjustment power unit 14 and the gripper unit 5 are staggered vertically.

[0031] When the adjustment power unit 14 is turned on, it can drive the welding torch 12 to rotate around the adjustment seat 13, changing the position of the welding torch 12 so that the welding torch 12 can be offset vertically from the cutting head 18. In this way, when the cutting head 18 and the gripper unit 5 enter the furnace body 1, there will be no interference with the welding torch 12. After the cutting head 18 and the cutting rod 19 and other components are fixed by the lower magnet adsorption unit 11, the adjustment power unit 14 can be turned on again to align it with the connection position of the cutting head 18 and the cutting rod 19.

[0032] The connection between the cutter head 18 and the cutter shank 19 is circular. In order to enable complete welding, a rotating plate is provided at the welding platform 10. The welding torch 12 is mounted on the rotating plate, and the rotating plate rotates with the welding platform 10. The rotating plate is provided with a large gear 15, a small gear 16 connected to the large gear 15 through gear meshing, and a rotary motor 17 mounted on the welding platform 10 to drive the small gear 16 to rotate.

[0033] When the rotary motor 17 is turned on, it drives the pinion 16 to rotate. The pinion 16 is connected to the gear 15 through gear meshing, which drives the gear 15 to rotate. The rotating plate is mounted on the gear 15. When the rotating plate rotates, it drives the welding torch 12 on it to rotate, thus rotating around the cutter head 18, thereby forming a complete weld at the connection between the cutter head 18 and the cutter shank 19.

[0034] In summary, this invention provides a vacuum welding furnace for tool processing. When the clamping motor 505 is turned on, it can drive the lead screw 504 to rotate. The lead screw 504 can drive the two upper clamping plates 501 to move closer or further apart. When the two upper clamping plates 501 move closer together, they can clamp the tool shank 19 located between them. When the two upper clamping plates 501 move further apart, they can release the tool shank 19. The structure of the lower clamping plate 502 is the same as that of the upper clamping plate 501. The two lower clamping plates 502 can clamp or release the tool head 18. In this way, the gripper unit 5 can fix the position of the tool head 18 and the tool shank 19. After the electric hoist 7 is turned on, it can send the gripper unit 5 into the furnace body 1 or pull it out of the furnace body 1. The upper magnetic adsorption unit 9 can be an electromagnet, and the upper groove cooperates with the electromagnet. When the electromagnet is turned on, it can magnetically attract the upper adsorption plate in the upper groove. In this way, the wire rope 6 can be connected to the gripper unit 5. When the lower magnetic adsorption unit 11 is turned on, the gripper unit 5 can be fixed and released, so that after the gripper unit 5 is sent into the furnace body 1, it can be fixed inside the furnace body 1. When the rotary motor 17 is turned on, it drives the pinion 16 to rotate. The pinion 16 is connected to the gear 15 through gear meshing, which drives the gear 15 to rotate. The rotating plate is mounted on the gear 15. When the rotating plate rotates, it drives the welding torch 12 on it to rotate, thus rotating around the cutter head 18, thereby forming a complete weld at the connection between the cutter head 18 and the cutter shank 19.

[0035] The above-disclosed embodiments are merely a few specific examples of the present invention. However, the embodiments of the present invention are not limited thereto, and any variations that can be conceived by those skilled in the art should fall within the protection scope of the present invention.

Claims

1. A vacuum welding furnace for machining of tools, comprising a furnace body (1), characterised in that The furnace body (1) is provided with a furnace cover (2) and an opening and closing drive mechanism (3) connected to the furnace cover (2); The furnace body (1) is equipped with a vacuum pumping device (4); The furnace body (1) is provided with a gripper unit (5) for clamping or releasing the cutter head (18) and the cutter bar (19); The furnace body (1) is provided with a wire rope (6), an electric hoist (7) for winding the wire rope (6), an operating platform (8) for installing the electric hoist (7), and an upper magnet adsorption unit (9) installed at the end of the wire rope (6). The furnace body (1) is provided with a welding platform (10) and a lower magnet adsorption unit (11) installed on the welding platform (10). A welding torch (12) is provided on the welding platform (10). An adjustment seat (13) that rotates with the welding torch (12) and an adjustment power unit (14) connected to the welding torch (12) are provided on the welding platform (10).

2. A vacuum brazing furnace for machining of cutting tools as claimed in claim 1, c h a r a c t e r i s e d in that The opening and closing drive mechanism (3) includes a pressure plate (301) and a hinge seat (302) that rotates with the pressure plate (301) and is installed on the furnace body (1). There are three pressure plates (301), and two pressure plates (301) are arranged in an array on the furnace body (1).

3. The vacuum welding furnace for tool processing as described in claim 2, characterized in that, The opening and closing drive mechanism (3) also includes a power mechanism (303), one end of which is movably connected to the pressure plate (301), and the other end of which is movably connected to the furnace body (1).

4. The vacuum welding furnace for tool processing as described in claim 3, characterized in that, The furnace body (1) is provided with a support frame, and the support frame is provided with a working surface that is inclined downwards. The power mechanism (303) is provided on the working surface.

5. The vacuum welding furnace for tool processing as described in claim 1, characterized in that, The gripper unit (5) includes an upper clamping plate (501) and a lower clamping plate (502). There are at least two upper clamping plates (501) and the upper clamping plates (501) are aligned with the tool bar (19). There are at least two lower clamping plates (502) and the lower clamping plates (502) are aligned with the tool head (18).

6. The vacuum welding furnace for tool processing as described in claim 5, characterized in that, The gripper unit (5) is provided with a gripping box (503), a lead screw (504) inserted into the gripping box (503), and a gripping motor (505) mounted on the gripping box (503) and connected to the lead screw (504) for transmission. The upper clamping plate (501) is slidably engaged with the gripping box (503), and the upper clamping plate (501) is rotatably engaged with the lead screw (504). The threads of the lead screw (504) at the two upper clamping plates (501) have opposite directions.

7. A vacuum welding furnace for tool processing as described in claim 6, characterized in that, The clamping box (503) is provided with an upper groove that cooperates with the upper magnet adsorption unit (9), and an upper adsorption plate is provided in the upper groove.

8. A vacuum welding furnace for tool processing as described in claim 7, characterized in that, The clamping box (503) is provided with a lower groove, and a lower adsorption plate is provided in the lower groove. The lower groove cooperates with the lower magnet adsorption unit (11).

9. A vacuum welding furnace for tool processing as described in claim 1, characterized in that, One end of the adjustment power unit (14) is movably connected to the welding torch (12), and the other end of the adjustment power unit (14) is movably connected to the welding platform (10). The adjustment power unit (14) and the gripper unit (5) are staggered vertically.

10. A vacuum welding furnace for tool processing as described in claim 6, characterized in that, A vertical plate is provided between the two clamping boxes (503).

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