Machining, cooling and oil spraying device for large gear hobbing machine

Abstract

The utility model discloses a bull gear hobbing machine processing cooling oil injection device which comprises a turntable workbench and a gear blank, the gear blank is arranged on the top side of the turntable workbench, an installation frame is arranged on the outer side of the turntable workbench, a transfer box is arranged outside the installation frame, an oil injection pipe extending to the position above the gear blank is arranged on the outer side of the transfer box in a rotating mode, and the oil injection pipe is connected with the turntable workbench. A liquid storage hopper is arranged above the transfer box, and a sealing cylinder is communicated between the liquid storage hopper and the transfer box. The gear blank machining device has the advantages that the oil spraying pipe abuts against the top face of a gear blank, the gear blank drives the upper shaft rod to rotate in the rotating process, the shaft rod is driven to rotate through the rotating machining action of the gear blank, and cooling oil in the liquid storage hopper is guided to be conveyed into the lower transfer box and the oil spraying pipe through the containing cavity in the outer circumference of the shaft rod; the cooling oil spraying speed is ensured to be matched with the rotating speed of the gear blank, the oil spraying speed is automatically adjusted according to the rotating speed of the gear blank, the cooling effect is ensured, meanwhile, cooling oil waste is avoided, and practicability is high.

Description

Technical Field

[0001] The utility model relates to the field of large gear processing equipment, in particular to a large gear hobbing machine processing cooling oil spraying device. Background Art

[0002] Gear hobbing machines are widely used in mechanical manufacturing. Specifically, gear hobbing machines are a type of machine tool for processing gears. Their functions include: processing spur gears, helical cylindrical gears, worm gears, sprockets, etc.; using special hobs, they can also process workpieces with various special tooth shapes such as splines and sprockets. During the processing of the gear hobbing machine, it is necessary to continuously spray cooling oil on the gear blank clamped above the turntable worktable during the rotation process to avoid high temperature damage to the gear blank and the tool during the cutting process. The current gear hobbing machine processing cooling oil spraying equipment cannot adjust the oil spraying speed according to the rotation speed of the gear blank. The fixed flow rate oil spraying method has the following problems: 1. When the gear blank rotates too fast, the cooling effect will be poor; 2. When the gear blank rotates too slowly, the cooling oil will be wasted. Utility Model Content

[0003] The purpose of the utility model is to provide a cooling oil spraying device for large gear hobbing machine in order to solve the above-mentioned problem. The oil spraying speed is automatically adjusted according to the rotation speed of the gear blank to ensure the cooling effect and avoid the waste of cooling oil. The utility model is highly practical, as described below for details.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] The utility model provides a large gear hobbing machine processing cooling oil spraying device, comprising a turntable workbench and a gear blank, wherein the gear blank is arranged on the top side of the turntable workbench, a mounting frame is arranged on the outside of the turntable workbench, a transfer box is arranged on the outside of the mounting frame, an oil spraying pipe extending to the top of the gear blank is rotatably arranged on the outside of the transfer box, a liquid storage hopper is arranged above the transfer box, a sealing cylinder is connected between the liquid storage hopper and the transfer box, and a shaft rod is rotatably arranged inside the sealing cylinder;

[0006] The outer circumference of the shaft rod is surrounded by a plurality of accommodating cavities extending along its length direction, and the plurality of accommodating cavities are all provided with plug strips for sliding sealing, and the outer side of the plug strips is flush with the outer circumference of the shaft rod, and a synchronous belt for driving the shaft rod to rotate is provided on the outer side of the fuel injection pipe.

[0007] The cooling oil spray device is processed by the above-mentioned large gear hobbing machine. When in use, the lifting knob is turned to change the support height of the positioning block in the positioning groove to ensure that the bottom side of the outer circumference of the oil spray pipe can be pressed against the top side of the gear blank. During the rotation processing of the gear blank, the gear blank is used to support the rotation of the oil spray pipe, and the shaft rod is driven to rotate by the synchronous belt outside the oil spray pipe. The accommodating cavity on the outer circumference side of the shaft rod is used to store the cooling oil in the liquid storage hopper, and the cooling oil is guided to be transported to the transfer box during the rotation of the shaft rod, so that the rotation speed of the shaft rod can be changed according to the rotation speed of the gear blank, thereby adjusting the coolant supply speed; when it is necessary to manually change the cooling oil spraying speed, the adjusting knob is turned to drive the adjusting rod to rotate, and the adjusting rod is used to drive the synchronous disk to support multiple groups of plug strips to slide along the length direction of the accommodating cavity, so as to change the length of the plug strips extending into the accommodating cavity, and then manually adjust the speed of cooling oil transported downward during the rotation of the shaft rod.

[0008] Preferably, a synchronous disk is fixed to one end of the multiple groups of plug strips extending out of the accommodating cavity, and an adjusting rod is rotatably provided at one end of the shaft rod close to the synchronous disk. The adjusting rod passes through the synchronous disk laterally and is threadedly engaged with the synchronous disk.

[0009] Preferably, the adjusting rod passes through one end of the synchronous disk and is fixed with a disc-shaped adjusting knob, a driven pulley is arranged on the outer side of the shaft end, a driving pulley is coaxially fixed on the outer side of the injection pipe, and the synchronous belt is sleeved on the outer sides of the driven pulley and the driving pulley.

[0010] Preferably, a rotating seat for supporting the fuel injection pipe to rotate is fixed on the outer side of the transfer box, and the transfer box and the fuel injection pipe are connected through the rotating seat.

[0011] Preferably, the mounting frame is an L-shaped bent plate structure, and mounting holes for passing bolts are vertically penetrated through the four corners of the bottom of the mounting frame.

[0012] Preferably, a positioning groove is horizontally penetrated through the middle of the mounting frame, and a positioning block is fixed on the outer side of the transfer box, which extends into the positioning groove and vertically slides with the positioning groove.

[0013] Preferably, a vertically extending operating rod is rotatably provided on the top side of the positioning block, a positioning hole is vertically penetrated on the mounting frame on the top side of the positioning groove, and the operating rod vertically penetrates the positioning hole and is threadedly engaged with the positioning hole.

[0014] Preferably, a disc-shaped lifting knob is fixed to the top of the operating rod, and a gripping groove is arranged around the outer circumference of the lifting knob.

[0015] The beneficial effect is that: the utility model sets the oil injection pipe tightly against the top surface of the gear blank, drives the upper shaft rod to rotate during the rotation of the gear blank, utilizes the rotation processing action of the gear blank to drive the shaft rod to rotate, utilizes the accommodating cavity on the outer circumference of the shaft rod to guide the cooling oil in the liquid storage bucket to be transported to the lower transfer box and the oil injection pipe, ensures that the cooling oil injection speed matches the rotation speed of the gear blank, automatically adjusts the oil injection speed according to the rotation speed of the gear blank, ensures the cooling effect, and avoids the waste of cooling oil;

[0016] In addition, multiple groups of plug strips are provided to adjust the oil storage space of the accommodating chamber, thereby changing the amount of cooling oil delivered downward during the rotation of the shaft, so as to adjust the capacity of the accommodating chamber according to the amount of cooling oil required for the gear blank of different materials, which is more convenient to use and has strong practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is the main structural diagram of the utility model;

[0019] Figure 2 It is a three-dimensional structural schematic diagram of the utility model;

[0020] Figure 3 It is a schematic diagram of the structural disassembly of the utility model;

[0021] Figure 4 This is a schematic diagram of the structural disassembly of the mounting frame and the transfer box of the utility model;

[0022] Figure 5 It is a schematic diagram of the structural disassembly of the shaft rod and the oil injection pipe of the utility model.

[0023] The following are the descriptions of the reference numerals:

[0024] 1. Turntable workbench; 2. Gear blank; 3. Mounting frame; 301. Positioning groove; 302. Positioning hole; 303. Mounting hole; 4. Transfer box; 401. Positioning block; 402. Rotating seat; 5. Sealing cylinder; 6. Liquid storage bucket; 7. Shaft; 701. Accommodating chamber; 702. Plug strip; 703. Synchronous disk; 704. Adjusting rod; 705. Adjusting knob; 706. Driven pulley; 8. Injection pipe; 801. Driving pulley; 9. Operating lever; 901. Lifting knob; 10. Synchronous belt. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be described in detail below. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other implementation methods obtained by ordinary technicians in this field without creative work belong to the scope of protection of the utility model.

[0026] See also Figure 1-Figure 5 As shown, the utility model provides a cooling oil spraying device for a large gear hobbing machine, comprising a turntable workbench 1 and a gear blank 2, the gear blank 2 being arranged on the top side of the turntable workbench 1, the turntable workbench 1 being a clamping mechanism for the gear blank 2 of the gear hobbing machine, a mounting frame 3 being arranged on the outside of the turntable workbench 1, a transfer box 4 being arranged on the outside of the transfer box 4, an oil spraying pipe 8 extending to the top of the gear blank 2 being rotatably arranged, a liquid storage hopper 6 for storing cooling oil being arranged above the transfer box 4, a sealing cylinder 5 being connected between the liquid storage hopper 6 and the transfer box 4, a shaft rod 7 being arranged in a sealing and rotatable manner inside the sealing cylinder 5, the sealing cylinder 5 being a rubber cylinder structure, to ensure the sealing performance of the position where the sealing cylinder 5 and the shaft rod 7 are pressed against each other;

[0027] A plurality of accommodating cavities 701 extending along the length direction are arranged around the outer circumference of the shaft rod 7. The plurality of accommodating cavities 701 are all slidingly sealed with rubber plug strips 702. The outer side of the plug strips 702 is flush with the outer circumference of the shaft rod 7. A synchronous belt 10 for driving the shaft rod 7 to rotate is arranged on the outer side of the injection pipe 8.

[0028] As an optional embodiment, a synchronous disk 703 is fixed at one end of the multiple groups of plug strips 702 extending out of the accommodating cavity 701, an adjusting rod 704 is rotatably arranged at one end of the shaft rod 7 close to the synchronous disk 703 through a bearing, the adjusting rod 704 passes through the synchronous disk 703 laterally and is threadedly matched with the synchronous disk 703, and a disc-shaped adjusting knob 705 is fixed at one end of the adjusting rod 704 passing through the synchronous disk 703, so as to drive the synchronous disk 703 to move laterally by rotating the adjusting rod 704, thereby changing the length of the multiple groups of plug strips 702 extending into the accommodating cavity 701 and changing the cooling oil storage volume in the accommodating cavity 701, a driven pulley 706 is arranged on the outer side of the end of the shaft rod 7, a driving pulley 801 is coaxially fixed on the outer side of the oil injection pipe 8, and a synchronous belt 10 is sleeved on the outer sides of the driven pulley 706 and the driving pulley 801;

[0029] A rotating seat 402 supporting the rotation of the fuel injection pipe 8 is fixed on the outside of the transfer box 4. The transfer box 4 is connected to the fuel injection pipe 8 through the rotating seat 402. The mounting frame 3 is an L-shaped bent plate structure. The four corners of the bottom of the mounting frame 3 are vertically penetrated with mounting holes 303 for anchor bolts. A positioning groove 301 is horizontally penetrated in the middle of the mounting frame 3. A positioning block 401 extending into the positioning groove 301 and vertically slidingly cooperating with the positioning groove 301 is fixed on the outside of the transfer box 4.

[0030] A vertically extending operating rod 9 is rotatably provided on the top side of the positioning block 401, and a positioning hole 302 is vertically penetrated on the mounting frame 3 on the top side of the positioning groove 301. The operating rod 9 vertically penetrates the positioning hole 302 and is threadedly matched with the positioning hole 302. A disc-shaped lifting knob 901 is fixed to the top of the operating rod 9, and a gripping groove is provided around the outer circumference of the lifting knob 901 to facilitate grasping the lifting knob 901 and then rotating the operating rod 9. The operating rod 9 is used to drive the positioning block 401 to support the transfer box 4 to move up and down, thereby changing the height position of the fuel injection pipe 8 to ensure that the fuel injection pipe 8 can be tightly pressed against the top side of the gear blank 2. In addition, the outer circumference of the fuel injection pipe 8 is a rubber cylinder structure to ensure that the fuel injection pipe 8 can be stably pressed against the top side of the gear blank 2, so as to support the synchronous rotation of the fuel injection pipe 8 during the rotation of the gear blank 2.

[0031] With the above structure, when in use, the lifting knob 901 is rotated to change the support height of the positioning block 401 in the positioning groove 301, ensuring that the bottom side of the outer circumference of the oil injection pipe 8 can be pressed against the top side of the gear blank 2. During the rotation processing of the gear blank 2, the gear blank 2 is used to support the oil injection pipe 8 to rotate, and the synchronous belt 10 on the outer side of the oil injection pipe 8 drives the shaft 7 to rotate, and the accommodating cavity 701 on the outer circumference side of the shaft rod 7 is used to store the cooling oil in the liquid storage hopper 6, and guide the cooling oil to be transported to the transfer box 4 during the rotation of the shaft rod 7, so that the rotation speed of the shaft rod 7 can be changed according to the rotation speed of the gear blank 2, thereby adjusting the coolant supply speed; when it is necessary to manually change the cooling oil spraying speed, the adjusting knob 705 is rotated to drive the adjusting rod 704 to rotate, and the adjusting rod 704 is used to drive the synchronous disk 703 to support the multiple groups of plug strips 702 to slide along the length direction of the accommodating cavity 701, so as to change the length of the plug strips 702 extending into the accommodating cavity 701, and then manually adjust the speed of the cooling oil transported downward during the rotation of the shaft rod 7;

[0032] By setting the oil injection pipe 8 to be pressed against the top surface of the gear blank 2, the upper shaft rod 7 is driven to rotate during the rotation of the gear blank 2, and the shaft rod 7 is driven to rotate by the rotation processing action of the gear blank 2. The accommodating cavity 701 on the outer circumference of the shaft rod 7 is used to guide the cooling oil in the liquid storage bucket 6 to be transported to the lower transfer box 4 and the oil injection pipe 8, ensuring that the cooling oil injection speed matches the rotation speed of the gear blank 2, and the oil injection speed is automatically adjusted according to the rotation speed of the gear blank 2, so as to ensure the cooling effect and avoid the waste of cooling oil.

[0033] In addition, multiple groups of plug strips 702 are provided to adjust the oil storage space of the accommodating chamber 701, thereby changing the amount of cooling oil delivered downward during the rotation of the shaft 7, so as to adjust the capacity of the accommodating chamber 701 according to the amount of cooling oil required by the gear blank 2 of different materials, which is more convenient to use and has strong practicality.

[0034] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A cooling oil spraying device for a large gear hobbing machine, comprising a turntable workbench (1) and a gear blank (2), wherein the gear blank (2) is arranged on the top side of the turntable workbench (1), and is characterized in that: A mounting frame (3) is arranged outside the turntable workbench (1), a transfer box (4) is arranged outside the mounting frame (3), an oil injection pipe (8) extending to the top of the gear blank (2) is rotatably arranged outside the transfer box (4), a liquid storage hopper (6) is arranged above the transfer box (4), a sealing cylinder (5) is connected between the liquid storage hopper (6) and the transfer box (4), and a shaft (7) is rotatably arranged inside the sealing cylinder (5); The outer circumference of the shaft rod (7) is surrounded by a plurality of groups of accommodating cavities (701) extending along its length direction, and the plurality of groups of accommodating cavities (701) are all provided with plug strips (702) in a sliding seal, and the outer side of the plug strips (702) is flush with the outer circumference of the shaft rod (7), and a synchronous belt (10) for driving the shaft rod (7) to rotate is provided on the outer side of the fuel injection pipe (8).

2. According to claim 1, the cooling oil spraying device for large gear hobbing machine is characterized in that: A plurality of groups of plug strips (702) extend out of the accommodating cavity (701) and are fixed with a synchronous disk (703) at one end thereof. An adjusting rod (704) is rotatably arranged at one end of the shaft rod (7) close to the synchronous disk (703). The adjusting rod (704) passes through the synchronous disk (703) transversely and is threadably engaged with the synchronous disk (703).

3. According to claim 2, the cooling oil spraying device for large gear hobbing machine is characterized in that: The adjusting rod (704) passes through one end of the synchronous disk (703) and is fixed with a disc-shaped adjusting knob (705); a driven pulley (706) is arranged on the outer side of the end of the shaft rod (7); a driving pulley (801) is coaxially fixed on the outer side of the injection pipe (8); and the synchronous belt (10) is sleeved on the outer sides of the driven pulley (706) and the driving pulley (801).

4. According to claim 1, the cooling oil spraying device for large gear hobbing machine is characterized in that: A rotating seat (402) for supporting the oil injection pipe (8) to rotate is fixed on the outside of the transfer box (4), and the transfer box (4) and the oil injection pipe (8) are connected via the rotating seat (402).

5. The cooling oil spraying device for large gear hobbing machine according to claim 4 is characterized in that: The mounting frame (3) is an L-shaped bent plate structure, and mounting holes (303) for passing bolts are vertically penetrated through the four corners of the bottom of the mounting frame (3).

6. The cooling oil spraying device for large gear hobbing machine according to claim 5 is characterized in that: A positioning groove (301) is horizontally penetrated in the middle of the mounting frame (3), and a positioning block (401) is fixed on the outer side of the transfer box (4) and extends into the positioning groove (301) and vertically slides with the positioning groove (301).

7. The cooling oil spraying device for large gear hobbing machine according to claim 6 is characterized in that: A vertically extending operating rod (9) is rotatably provided on the top side of the positioning block (401), a positioning hole (302) is vertically penetrated on the mounting frame (3) on the top side of the positioning groove (301), and the operating rod (9) vertically penetrates the positioning hole (302) and is threadedly engaged with the positioning hole (302).

8. The cooling oil spraying device for large gear hobbing machine according to claim 7 is characterized in that: A disc-shaped lifting knob (901) is fixed to the top end of the operating rod (9), and a gripping groove is arranged around the outer circumference of the lifting knob (901).

Images