A cooling structure of a gear hobbing machine

Abstract

The utility model discloses a kind of cooling and cooling structure of gear hobbing machine, more specifically related to gear hobbing machine cooling and cooling technical field, including the installation frame being arranged on gear hobbing machine, the sliding slot is set in the inner wall of the front and rear two sides of installation frame, sliding block is arranged between two sliding slots, the bottom of sliding block is fixed with multiple liquid injection nozzles of equidistant distribution, multiple liquid injection nozzles are communicated with infusion mechanism, installation slot is set in one side of installation frame top, electric push rod is fixedly arranged in the inside of installation slot, the piston rod one end of electric push rod is fixed with connecting plate. The utility model is sprayed to the meshing area of gear hobbing tool and workpiece by multiple liquid injection nozzles on sliding block, to realize the cooling and cooling of core machining part, at the same time, reciprocatingly move liquid injection nozzle on sliding block by means of electric push rod, so that cooling liquid more evenly covers gear hobbing tool surface, substantially improve the cooling and cooling effect and uniformity of tool, guarantee machining precision and tool service life.

Description

Technical Field

[0001] This utility model relates to the field of gear hobbing machine cooling technology, and more specifically to a gear hobbing machine cooling structure. Background Technology

[0002] Gear hobbing machines are among the most widely used gear processing machine tools, primarily used for machining spur, helical, and herringbone cylindrical gears, as well as worm gears, using the generating method. Based on the generating principle, the gear hobbing machine simulates the meshing and rolling process of a pair of helical gears through the relative rotational motion of the hob and the workpiece, thus continuously cutting teeth onto the workpiece. During gear hobbing, the relative motion between the hob and the workpiece constitutes the generating motion, allowing the hob to continuously cut teeth onto the workpiece. This process can produce various tooth profiles, including spur, helical, and herringbone cylindrical gears, as well as worm gears. Existing gear hobbing machines are classified into vertical and horizontal types based on their layout. Large and medium-sized gear hobbing machines are mostly vertical, while small gear hobbing machines and those specifically designed for machining long-shaft gears are horizontal. Vertical gear hobbing machines are further divided into two types: those with a moving worktable and those with a moving column.

[0003] For example, a high-speed gear hobbing machine with a cooling structure, disclosed in the prior art (CN222767440U), achieves external cooling by discharging superheated water from the heat transfer pipe during internal circulation, directly cooling and smoothing the outer surface of the gear hobbing cutter, thus realizing comprehensive cooling from multiple angles and levels.

[0004] However, the existing technology has the following problems in use: the cooling structure of traditional gear hobbing machines usually only has one spray nozzle for water cooling. Since the gear hobbing cutter on the gear hobbing machine has a certain length, and the direction of the water flow from the spray nozzle is constant, it is easy to cause local water shortage, which affects the cooling effect. Based on this, the present invention provides a cooling structure for gear hobbing machines with high cooling effect. Utility Model Content

[0005] To overcome the aforementioned deficiencies in the prior art, this utility model provides a cooling structure for a gear hobbing machine. Multiple nozzles on a slider spray coolant onto the meshing area between the gear hobbing cutter and the workpiece, thereby achieving cooling of the core machining area. Simultaneously, an electric push rod drives the nozzles on the slider to reciprocate, ensuring a more uniform coverage of the gear hobbing cutter surface with coolant. This significantly improves the cooling effect and uniformity of the cutter, ensuring machining accuracy and tool life, thus solving the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a cooling structure for a gear hobbing machine, comprising a mounting frame mounted on the gear hobbing machine, wherein sliding grooves are provided on the inner walls of both the front and rear sides of the mounting frame, and a slider is provided between two sliding grooves. A plurality of equally spaced liquid nozzles are fixedly provided at the bottom of the slider, and a liquid delivery mechanism is connected between the plurality of liquid nozzles. A mounting groove is provided on one side of the top of the mounting frame, and an electric push rod is fixedly provided inside the mounting groove. A connecting plate is fixedly provided at one end of the piston rod of the electric push rod, and the connecting plate is fixed to the top of the slider. The rear end of the mounting frame is connected to the gear hobbing machine through a connecting assembly.

[0007] In a preferred embodiment, a baffle is detachably connected to one side of the mounting frame, and two positioning blocks are fixedly provided on the side of the baffle near the mounting frame. The mounting frame has a positioning groove corresponding to the positioning blocks on the side near the baffle, and the positioning blocks are located inside the positioning groove.

[0008] In a preferred embodiment, the infusion mechanism includes a water pump, which is detachably mounted on the top of the gear hobbing machine, and the outlet of the water pump is connected to multiple spray nozzles via a four-way pipe.

[0009] In a preferred embodiment, the connecting component includes a fixing block, the front end of which has an adjustment groove, and an extension block is provided inside the adjustment groove. The front end of the extension block is fixed to the rear end of the mounting frame.

[0010] In a preferred embodiment, the top of the fixing block is threaded with two symmetrically distributed fastening bolts, and the top of the extension block has multiple threaded holes arranged in a linear array. The bottom of the fastening bolts is threaded to the threaded holes. The fastening bolts and threaded holes are matched to facilitate the quick adjustment of the position of the installation frame by the staff.

[0011] In a preferred embodiment, the top of the fixing block has a plurality of equally spaced fixing holes, which are located behind two fastening bolts, for fixing the fixing block to the gear hobbing machine.

[0012] The technical effects and advantages of this utility model are as follows:

[0013] 1. This utility model sprays coolant onto the meshing area between the hobbing cutter and the workpiece through multiple spray nozzles on the slider to achieve cooling of the core machining part. At the same time, the electric push rod and connecting plate drive the slider to reciprocate in two slide grooves, which in turn drives the spray nozzles to reciprocate, so that the coolant covers the surface of the hobbing cutter more evenly, greatly improving the cooling effect and uniformity of the cutter, and ensuring machining accuracy and tool life.

[0014] 2. With the help of the extension block, the mounting frame can be quickly installed on the gear hobbing machine. The operation is convenient and efficient. By loosening the fastening bolts and pulling the mounting frame, the position of the mounting frame and the spray nozzle can be quickly adjusted. The adjustment is convenient and allows the position of the spray nozzle to be flexibly adapted to the actual processing requirements, which significantly improves the flexibility and practicality of the equipment. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a side view of the overall structure of this utility model;

[0017] Figure 3 This is a partial structural schematic diagram of the present invention;

[0018] Figure 4 This is a schematic diagram showing the separation of the baffle and the mounting frame of this utility model;

[0019] Figure 5 This is a cross-sectional view of the fixing block of this utility model.

[0020] The attached figures are labeled as follows: 1. Gear hobbing machine; 2. Mounting frame; 3. Slide groove; 4. Slider; 5. Nozzle; 6. Infusion mechanism; 7. Mounting groove; 8. Electric push rod; 9. Connecting plate; 10. Connecting assembly; 11. Baffle; 12. Positioning block; 13. Positioning groove; 14. Fixing hole;

[0021] 61. Water pump; 62. Four-way pipe;

[0022] 101. Fixing block; 102. Adjusting groove; 103. Extension block; 104. Fastening bolt; 105. Threaded hole. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Refer to the instruction manual appendix Figures 1-5This utility model provides a cooling structure for a gear hobbing machine, including a mounting frame 2 mounted on the gear hobbing machine 1. The inner walls of the front and rear sides of the mounting frame 2 are provided with grooves 3, and a slider 4 is provided between two grooves 3. Multiple equally spaced liquid nozzles 5 are fixed at the bottom of the slider 4, and a liquid delivery mechanism 6 connects the multiple liquid nozzles 5. Specifically, the liquid delivery mechanism 6 includes a water pump 61, which is detachably mounted on the top of the gear hobbing machine 1. The outlet of the water pump 61 is connected to the multiple liquid nozzles 5 through a four-way pipe 62, and the inlet of the water pump 61 is connected to a coolant pipeline (e.g., a coolant storage tank) through a pipe. The water pump 61 is a machine that transports or pressurizes liquid. It transfers the mechanical energy of the prime mover or other external energy to the liquid, increasing the liquid's energy.

[0025] The mounting frame 2 has a mounting groove 7 on one side of its top. An electric push rod 8 is fixedly installed inside the mounting groove 7. A connecting plate 9 is fixedly installed at one end of the piston rod of the electric push rod 8. The connecting plate 9 is fixed to the top of the slider 4. The rear end of the mounting frame 2 is connected to the gear hobbing machine 1 through a connecting assembly 10.

[0026] In actual use, a water pump 61 draws coolant and delivers it to the spray nozzle 5, which then sprays the coolant onto the meshing area between the hobbing tool and the workpiece to cool the core machining area. At the same time, the electric push rod 8 on the top of the mounting frame 2 works in conjunction with the connecting plate 9 to drive the slider 4 to reciprocate within the two slide grooves 3. The slider 4 is connected to multiple spray nozzles 5, and its movement synchronously drives the spray nozzles 5 to reciprocate, thereby making the coolant more evenly cover the surface of the hobbing tool, greatly improving the cooling effect and uniformity of the tool, and ensuring machining accuracy and tool life.

[0027] Refer to the instruction manual appendix Figures 3-5 A baffle 11 is detachably connected to one side of the mounting frame 2. Two positioning blocks 12 are fixedly provided on the side of the baffle 11 near the mounting frame 2. A positioning groove 13 corresponding to the positioning block 12 is opened on the side of the mounting frame 2 near the baffle 11. The positioning block 12 is located inside the positioning groove 13.

[0028] The connecting assembly 10 includes a fixing block 101. The front end of the fixing block 101 has an adjustment groove 102. An extension block 103 is provided inside the adjustment groove 102. The front end of the extension block 103 is fixed to the rear end of the mounting frame 2. The top of the fixing block 101 is threaded with two symmetrically distributed fastening bolts 104. The top of the extension block 103 has multiple threaded holes 105 arranged in a linear array. The bottom of the fastening bolts 104 is threaded to the threaded holes 105. The top of the fixing block 101 also has multiple equally spaced fixing holes 14, which are all located behind the two fastening bolts 104.

[0029] With the cooperation of the fixing block 101 and the extension block 103, the mounting frame 2 can be quickly installed on the gear hobbing machine 1. The operation is convenient and efficient. When it is necessary to adjust the position of the spray nozzle 5, the operator only needs to loosen the two fastening bolts 104 on the fixing block 101 and then pull the mounting frame 2 forward. At this time, the extension block 103 connected to the mounting frame 2 will slide smoothly in the adjustment groove 102. After the spray nozzle 5 is moved to the position that meets the installation requirements, the fastening bolts 104 are screwed back into the corresponding threaded holes 105 to securely lock the extension block 103 and the mounting frame 2. The adjustment is convenient and allows the position of the spray nozzle 5 to be flexibly adapted according to the actual processing requirements, which significantly improves the flexibility and practicality of the equipment.

[0030] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A cooling structure for a gear hobbing machine, comprising a mounting frame (2) disposed on the gear hobbing machine (1), characterized in that: The mounting frame (2) has grooves (3) on both the front and rear inner walls, and a slider (4) is provided between the two grooves (3). Multiple equally spaced spray nozzles (5) are fixed at the bottom of the slider (4), and an infusion mechanism (6) is connected between the multiple spray nozzles (5). The mounting frame (2) has a mounting groove (7) on one side of its top. An electric push rod (8) is fixedly installed inside the mounting groove (7). A connecting plate (9) is fixedly installed at one end of the piston rod of the electric push rod (8). The connecting plate (9) is fixed to the top of the slider (4). The rear end of the mounting frame (2) is connected to the gear hobbing machine (1) through a connecting component (10).

2. The cooling structure for a gear hobbing machine according to claim 1, characterized in that: A baffle (11) is detachably connected to one side of the mounting frame (2). Two positioning blocks (12) are fixedly provided on the side of the baffle (11) near the mounting frame (2). A positioning groove (13) corresponding to the positioning block (12) is opened on the side of the mounting frame (2) near the baffle (11). The positioning block (12) is located inside the positioning groove (13).

3. The cooling structure for a gear hobbing machine according to claim 1, characterized in that: The infusion mechanism (6) includes a water pump (61), which is detachably mounted on the top of the gear hobbing machine (1). The outlet of the water pump (61) is connected to multiple spray nozzles (5) through a four-way pipe (62).

4. The cooling structure for a gear hobbing machine according to claim 1, characterized in that: The connecting component (10) includes a fixing block (101), the front end of the fixing block (101) is provided with an adjustment groove (102), the adjustment groove (102) is provided with an extension block (103), and the front end of the extension block (103) is fixed to the rear end of the mounting frame (2).

5. The cooling structure for a gear hobbing machine according to claim 4, characterized in that: The top of the fixing block (101) is threaded with two symmetrically distributed fastening bolts (104), and the top of the extension block (103) is provided with a plurality of threaded holes (105) arranged in a linear array. The bottom of the fastening bolts (104) is threadedly connected to the threaded holes (105).

6. The cooling structure for a gear hobbing machine according to claim 5, characterized in that: The top of the fixing block (101) has a plurality of equally spaced fixing holes (14), and the plurality of fixing holes (14) are located behind the two fastening bolts (104).

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