Cooling device for hob machining

The lifting structure and clamping mechanism enable rapid immersion cooling of the cutting roller in water, solving the problems of complicated operation and burns associated with existing cooling devices, and improving both cooling efficiency and safety.

CN224088562UActive Publication Date: 2026-04-07GUIZHOU HUAGONG PRECISION TOOLS INTELLIGENT MFG CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-21
Publication Date
2026-04-07

AI Technical Summary

Technical Problem

Existing hobbing machine cooling devices are complicated to operate, can easily burn workers, and have poor cooling effects.

Method used

A cooling device for hobbing is designed. The hob is fully immersed in water for rapid cooling through a lifting structure and a clamping mechanism. A conical block is used to achieve rotatable or fixed clamping, simplifying the operation.

Benefits of technology

It achieves rapid cooling of the hobbing cutter, avoids the risk of burns, and improves cooling effect and ease of operation.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of hob machining, and discloses a cooling device for hob machining, which comprises a machining table, the upper part of the machining table is fixedly connected with a support column, and the upper part of the support column is fixedly connected with an L-shaped chute. The hobbing cutter is clamped to the upper portion of the connecting plate, the second motor is started through the external controller, the output shaft of the second motor rotates to drive the first threaded rod to rotate in the fixing strip, then the internal thread assembly moves backwards along the inner groove of the L-shaped sliding groove, and the lifting sliding groove and the sliding column are driven to move backwards. When the sliding column moves to the rearmost end of the interior of the L-shaped sliding groove, a first motor is started, an output shaft of the first motor rotates to drive the sliding column to descend along the surface of a second threaded rod, the hob is placed on the inner side of the water storage tank to be completely immersed in water, and meanwhile a first conical block is connected with the left sliding column and the right sliding column to make the left sliding column and the right sliding column move synchronously. The hob cooling speed is high, the cooling effect is good, and workers are prevented from being scalded by the hob.
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Description

Technical Field

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

[0002] Hobs, with their unique helical or spur tooth structure, enable continuous and efficient cutting of workpieces. Compared to traditional cutting tools, hobs can significantly improve machining efficiency and reduce production costs.

[0003] Cooling devices play a crucial role in hobbing. Due to the cutting forces and friction, a large amount of heat is generated during hobbing. If it is not cooled in time, it will not only affect the machining quality but may also cause tool damage or workpiece deformation.

[0004] In existing equipment, during the hobbing process, workers often need to remove the hob from the fixture and hold it in water with pliers for cooling. This cooling method is complicated and can easily cause workers to be burned by the temperature of the hob. Therefore, it is necessary to improve and optimize the cooling device used for hobbing. Summary of the Invention

[0005] In order to overcome the shortcomings of the existing technology, this utility model provides a cooling device for hobbing, which has the advantages of making the hob cool faster, having a better cooling effect, and preventing the hob from burning workers.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a cooling device for hobbing, comprising a machining table, a support column fixedly connected to the upper part of the machining table, an L-shaped slide groove fixedly connected to the upper part of the support column, a sliding column movably connected inside the L-shaped slide groove, connecting plates fixedly connected to the lower ends of the left and right sliding columns, a T-shaped block fixedly connected to the right part of the sliding column, a lifting slide groove movably connected to the right part of the T-shaped block, a lifting structure provided at the upper part of the lifting slide groove, an internal thread assembly fixedly connected to the right surface of the lifting slide groove, a fixing strip fixedly connected to the right surface of the right L-shaped slide groove, a first threaded rod rotatably connected inside the fixing strip, the surface of the first threaded rod being threadedly connected to the internal thread of the internal thread assembly, and a driving structure provided on the rear surface of the right L-shaped slide groove.

[0007] As a preferred technical solution of this utility model: a first fixed column is fixedly connected to one side surface of the right sliding column, a first conical block is fixedly connected to the left end of the first fixed column, a push bar is movably connected inside the left sliding column, a connecting bar is fixedly connected to the right side of the push bar, a second fixed column is fixedly connected to the right side of the connecting bar, a second conical block is fixedly connected to the right side of the second fixed column, and a push structure is provided on the left side of the push bar.

[0008] As a preferred technical solution of this utility model: the lifting structure includes a first motor fixedly connected to the upper part of the lifting slide, the output shaft of the first motor is fixedly connected to a second threaded rod, and the surface of the second threaded rod is threadedly connected to the internal thread of the right slide column.

[0009] As a preferred technical solution of this utility model: the driving structure includes a first support plate fixedly connected to the rear surface of the right sliding column, a second motor fixedly connected to the upper surface of the first support plate, and the output shaft of the second motor fixedly connected to the rear end of the first threaded rod.

[0010] As a preferred technical solution of this utility model: the pushing structure includes a second support plate fixedly connected to the left end of the left sliding column, and a cylinder is fixedly connected to the upper surface of the second support plate. The output shaft of the cylinder is fixedly connected to the left end of the pushing bar.

[0011] As a preferred technical solution of this utility model: the left side of the lifting slide is fixedly connected to a limiting block, and the interior of the limiting block is rotatably connected to the lower end of the second threaded rod.

[0012] As a preferred technical solution of this utility model: a fixing plate is fixedly connected to the rear of the processing table, a water storage tank is fixedly connected to the upper part of the fixing plate, and a drain valve is fixedly connected to the rear of the water storage tank.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] 1. This utility model clamps the hob cutter to the upper part of the connecting plate. An external controller activates the second threaded rod, causing its output shaft to rotate and drive the first threaded rod to rotate within the fixed bar. This causes the internal thread assembly to move backward along the inner groove of the L-shaped slide, simultaneously moving the lifting slide and the sliding column backward. When the sliding column reaches the rearmost end of the L-shaped slide, the first motor is activated. The first motor's output shaft rotates, causing the sliding column to descend along the surface of the second threaded rod, allowing the hob cutter to be completely immersed in the water inside the water tank. Simultaneously, the first conical block connects the left and right sliding columns, ensuring their synchronized movement. This device quickly and completely immerses the hob cutter in water, resulting in rapid and effective cooling, preventing burns to workers.

[0015] 2. This utility model involves placing one end of the hob close to the first conical block and in its central circular hole. Activating the cylinder causes the cylinder output shaft to extend, moving the push bar inside the left sliding column to the right. This, in turn, moves the connecting bar, the second fixed column, and the second conical block to the right. The square push bar limits the movement, making the second conical block horizontal with the first conical block. Clamping is achieved when the right end of the second conical block enters the left end of the hob. Because the first and second conical blocks are conical, the hob can be in a fixed state or raised and rotatable, facilitating comprehensive machining of the hob and making operation convenient. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the drain valve structure of this utility model;

[0018] Figure 3 This is a cross-sectional view of the lifting slide rail of this utility model;

[0019] Figure 4 This is a cross-sectional view of the sliding column of this utility model;

[0020] Figure 5 This is a schematic diagram of the first conical block structure of this utility model.

[0021] In the diagram: 1. Processing table; 2. Support column; 3. L-shaped slide; 4. Sliding column; 5. T-shaped block; 6. Lifting slide; 7. Internal thread assembly; 8. Fixing bar; 9. First threaded rod; 10. First fixing column; 11. First conical block; 12. Push bar; 13. Connecting bar; 14. Second fixing column; 15. Second conical block; 16. Connecting plate; 17. First motor; 18. Second threaded rod; 19. First support plate; 20. Second motor; 21. Second support plate; 22. Cylinder; 23. Limiting block; 24. Fixing plate; 25. Water tank; 26. Drain valve. Detailed Implementation

[0022] 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.

[0023] like Figures 1 to 5As shown, this utility model provides a cooling device for hobbing, including a processing table 1. A support column 2 is fixedly connected to the upper part of the processing table 1. An L-shaped slide groove 3 is fixedly connected to the upper part of the support column 2. A slide column 4 is movably connected inside the L-shaped slide groove 3. A connecting plate 16 is fixedly connected to the lower end of the left and right slide columns 4. A T-shaped block 5 is fixedly connected to the right part of the slide column 4. A lifting slide groove 6 is movably connected to the right part of the T-shaped block 5. A lifting structure is provided on the upper part of the lifting slide groove 6. An internal thread assembly 7 is fixedly connected to the right surface of the lifting slide groove 6. A fixing strip 8 is fixedly connected to the right surface of the right L-shaped slide groove 3. A first threaded rod 9 is rotatably connected inside the fixing strip 8. The surface of the first threaded rod 9 is threadedly connected to the internal thread of the internal thread assembly 7. A driving structure is provided on the rear surface of the right L-shaped slide groove 3.

[0024] When the operator clamps the hob cutter on the upper part of the connecting plate 16, the second motor 20 is started by the external controller. Due to the rotation of the output shaft of the second motor 20, the first threaded rod 9 is rotated inside the fixed bar 8, thereby driving the internal thread assembly 7 to move backward along the direction of the internal groove of the L-shaped slide 3. This causes the lifting slide 6 and the sliding column 4 to move backward. When the sliding column 4 moves to the last end inside the L-shaped slide 3, the first motor 17 is started. Due to the rotation of the output shaft of the first motor 17, the sliding column 4 is driven to descend along the surface of the second threaded rod 18, finally placing the hob cutter inside the water tank 25, so that the hob cutter is completely immersed in the water. Furthermore, since the first conical block 11 connects the left and right sliding columns 4, the left and right sliding columns 4 move synchronously.

[0025] Among them, a first fixed post 10 is fixedly connected to one side surface of the right sliding post 4, a first conical block 11 is fixedly connected to the left end of the first fixed post 10, a push bar 12 is movably connected inside the left sliding post 4, a connecting bar 13 is fixedly connected to the right side of the push bar 12, a second fixed post 14 is fixedly connected to the right side of the connecting bar 13, a second conical block 15 is fixedly connected to the right side of the second fixed post 14, and a push structure is provided on the left side of the push bar 12.

[0026] The operator moves one end of the hob closer to the first conical block 11, then places the first conical block 11 into the central circular hole of the hob. Then, by activating the cylinder 22, the extension of the output shaft of the cylinder 22 causes the push bar 12 to move to the right inside the left sliding column 4, which in turn causes the connecting bar 13, the second fixed column 14, and the second conical block 15 to move to the right. Since the push bar 12 is square, its movement is limited, thus ensuring that the second conical block 15 and the first conical block 11 are at the same horizontal position. When the right end of the second conical block 15 is inside the left end of the hob, the hob is clamped.

[0027] The lifting structure includes a first motor 17 fixedly connected to the upper part of the lifting slide 6. The output shaft of the first motor 17 is fixedly connected to a second threaded rod 18, and the surface of the second threaded rod 18 is threadedly connected to the inside of the right slide column 4.

[0028] The rotation of the output shaft of the first motor 17 drives the rotation of the second threaded rod 18. Since the surface of the second threaded rod 18 is connected to the internal thread of the right slide column 4, the T-shaped block 5 is moved up and down inside the lifting slide 6. This allows the slide column 4 to descend when the internal thread assembly 7 is located at the rear of the L-shaped slide 3, so that the hob is located in the water in the water storage tank 25.

[0029] The drive structure includes a first support plate 19 fixedly connected to the rear surface of the right sliding column 4, a second motor 20 fixedly connected to the upper surface of the first support plate 19, and the output shaft of the second motor 20 fixedly connected to the rear end of the first threaded rod 9.

[0030] The first support plate 19 provides support force to the second motor 20. Due to the rotation of the output shaft of the second motor 20, the first threaded rod 9 rotates inside the fixed bar 8. Since the internal threaded assembly 7 is threadedly connected to the fixed bar 8, the internal threaded assembly 7 moves backward along the groove of the L-shaped slide 3.

[0031] The pushing structure includes a second support plate 21 fixedly connected to the left end of the left sliding column 4. A cylinder 22 is fixedly connected to the upper surface of the second support plate 21, and the output shaft of the cylinder 22 is fixedly connected to the left end of the pushing bar 12.

[0032] The second support plate 21 provides support force to the cylinder 22. Due to the extension of the output shaft of the cylinder 22, the push bar 12 is driven to move to the right inside the left sliding column 4, so that the second conical block 15 and the first conical block 11 clamp the hob.

[0033] The left side of the lifting slide 6 is fixedly connected to a limiting block 23, and the interior of the limiting block 23 is rotatably connected to the lower end of the second threaded rod 18.

[0034] The T-shaped block 5 is fixedly connected to the left side of the lifting slide 6 by the limiting block 23, and because the lower end of the second threaded rod 18 is rotatably connected to the inside of the limiting block 23, the stability of the rotation of the second threaded rod 18 is ensured, so that the T-shaped block 5 can stably rise and fall along the inside of the lifting slide 6.

[0035] The processing table 1 is fixedly connected to a fixed plate 24 at the rear, a water tank 25 is fixedly connected to the upper part of the fixed plate 24, and a drain valve 26 is fixedly connected to the rear of the water tank 25.

[0036] The fixed plate 24 provides support for the water storage tank 25. However, when the water storage tank 25 is filled with water, the lower end of the right sliding column 4, the first fixed column 10, the first conical block 11, the lower end of the connecting strip 13, the second fixed column 14, the second conical block 15, and the roller are placed in the water. Then, the water inside the water storage tank 25 is discharged through the drain valve 26. The water inside the water storage tank 25 is injected from the top of the water storage tank 25, thereby cooling the roller.

[0037] Working principle and usage process of this utility model:

[0038] When the operator clamps the hob cutter on the upper part of the connecting plate 16, the second motor 20 is started by the external controller. Due to the rotation of the output shaft of the second motor 20, the first threaded rod 9 is rotated inside the fixed bar 8, thereby driving the internal thread assembly 7 to move backward along the direction of the internal groove of the L-shaped slide 3. This causes the lifting slide 6 and the sliding column 4 to move backward. When the sliding column 4 moves to the last end inside the L-shaped slide 3, the first motor 17 is started. Due to the rotation of the output shaft of the first motor 17, the sliding column 4 is driven to descend along the surface of the second threaded rod 18, finally placing the hob cutter inside the water tank 25, so that the hob cutter is completely immersed in the water. Furthermore, since the first conical block 11 connects the left and right sliding columns 4, the left and right sliding columns 4 move synchronously.

[0039] The operator moves one end of the hob closer to the first conical block 11, then places the first conical block 11 into the central circular hole of the hob. Then, by activating the cylinder 22, the extension of the output shaft of the cylinder 22 causes the push bar 12 to move to the right inside the left sliding column 4, which in turn causes the connecting bar 13, the second fixed column 14, and the second conical block 15 to move to the right. Since the push bar 12 is square, its movement is limited, thus ensuring that the second conical block 15 and the first conical block 11 are at the same horizontal position. When the right end of the second conical block 15 is inside the left end of the hob, the hob is clamped.

[0040] The rotation of the output shaft of the first motor 17 drives the rotation of the second threaded rod 18. Since the surface of the second threaded rod 18 is connected to the internal thread of the right slide column 4, the T-shaped block 5 is moved up and down inside the lifting slide 6. This allows the slide column 4 to descend when the internal thread assembly 7 is located at the rear of the L-shaped slide 3, so that the hob is located in the water in the water storage tank 25.

[0041] The first support plate 19 provides support force to the second motor 20. Due to the rotation of the output shaft of the second motor 20, the first threaded rod 9 rotates inside the fixed bar 8. Since the internal threaded assembly 7 is threadedly connected to the fixed bar 8, the internal threaded assembly 7 moves backward along the groove of the L-shaped slide 3.

[0042] The second support plate 21 provides support force to the cylinder 22. Due to the extension of the output shaft of the cylinder 22, the push bar 12 is driven to move to the right inside the left sliding column 4, so that the second conical block 15 and the first conical block 11 clamp the hob.

[0043] The T-shaped block 5 is fixedly connected to the left side of the lifting slide 6 by the limiting block 23, and because the lower end of the second threaded rod 18 is rotatably connected to the inside of the limiting block 23, the stability of the rotation of the second threaded rod 18 is ensured, so that the T-shaped block 5 can stably rise and fall along the inside of the lifting slide 6.

[0044] The fixed plate 24 provides support for the water storage tank 25. However, when the water storage tank 25 is filled with water, the lower end of the right sliding column 4, the first fixed column 10, the first conical block 11, the lower end of the connecting strip 13, the second fixed column 14, the second conical block 15, and the roller are placed in the water. Then, the water inside the water storage tank 25 is discharged through the drain valve 26. The water inside the water storage tank 25 is injected from the top of the water storage tank 25, thereby cooling the roller.

[0045] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0046] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A cooling device for hobbing, comprising a machining table (1), characterized in that: The upper part of the processing table (1) is fixedly connected to a support column (2), the upper part of the support column (2) is fixedly connected to an L-shaped slide groove (3), the inside of the L-shaped slide groove (3) is movably connected to a slide column (4), the lower ends of the slide columns (4) on the left and right sides are fixedly connected to a connecting plate (16), the right side of the slide column (4) is fixedly connected to a T-shaped block (5), the right side of the T-shaped block (5) is movably connected to a lifting slide groove (6), the upper part of the lifting slide groove (6) is provided with a lifting structure, the right surface of the lifting slide groove (6) is fixedly connected to an internal thread assembly (7), the right surface of the right L-shaped slide groove (3) is fixedly connected to a fixing strip (8), the inside of the fixing strip (8) is rotatably connected to a first threaded rod (9), the surface of the first threaded rod (9) is threadedly connected to the inside of the internal thread assembly (7), and the rear surface of the right L-shaped slide groove (3) is provided with a driving structure.

2. A cooling device for hobbing according to claim 1, characterized in that: A first fixed column (10) is fixedly connected to one side surface of the right sliding column (4), and a first conical block (11) is fixedly connected to the left end of the first fixed column (10). A push bar (12) is movably connected inside the left sliding column (4). A connecting bar (13) is fixedly connected to the right side of the push bar (12). A second fixed column (14) is fixedly connected to the right side of the connecting bar (13). A second conical block (15) is fixedly connected to the right side of the second fixed column (14). A push structure is provided on the left side of the push bar (12).

3. A cooling device for hobbing according to claim 1, characterized in that: The lifting structure includes a first motor (17) fixedly connected to the upper part of the lifting slide (6), and the output shaft of the first motor (17) is fixedly connected to a second threaded rod (18). The surface of the second threaded rod (18) is connected to the internal thread of the right slide column (4).

4. A cooling device for hobbing according to claim 1, characterized in that: The drive structure includes a first support plate (19) fixedly connected to the rear surface of the right slide column (4), a second motor (20) fixedly connected to the upper surface of the first support plate (19), and the output shaft of the second motor (20) fixedly connected to the rear end of the first threaded rod (9).

5. A cooling device for hobbing according to claim 2, characterized in that: The pushing structure includes a second support plate (21) fixedly connected to the left end of the left sliding column (4), and a cylinder (22) is fixedly connected to the upper surface of the second support plate (21). The output shaft of the cylinder (22) is fixedly connected to the left end of the push bar (12).

6. A cooling device for hobbing according to claim 1, characterized in that: The left side of the lifting slide (6) is fixedly connected to a limiting block (23), and the interior of the limiting block (23) is rotatably connected to the lower end of the second threaded rod (18).

7. A cooling device for hobbing according to claim 1, characterized in that: A fixing plate (24) is fixedly connected to the rear of the processing table (1), a water storage tank (25) is fixedly connected to the upper part of the fixing plate (24), and a drain valve (26) is fixedly connected to the rear of the water storage tank (25).