Gear hobbing machine tailstock ejector pin main shaft limiting and fixing structure

Abstract

The utility model provides a gear hobbing machine tailstock thimble main shaft limiting and fixing structure, which relates to the technical field of machining, and comprises a fixing mechanism, an auxiliary mechanism is arranged in the fixing mechanism, the fixing mechanism comprises a main shaft body, a bearing is arranged on the outer side of the main shaft body, and a connecting frame is arranged on the outer side of the bearing. One end of the main shaft body penetrates into the crankset and partially extends, the groove is formed in the main shaft body, the extending elastic piece can retract under the condition that no external force is applied to the extending elastic piece, and the fixing block moves downwards, so that the locking block at the bottom end of the fixing block enters the main shaft body to limit the main shaft body; and the triangular block presses the fixed block under the action of external force of the connecting frame, so that the fixed block can be prevented from loosening or displacing in the working process.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical processing, in particular to a limiting and fixing structure for a spindle of a tailstock of a gear hobbing machine. Background Art

[0002] The tailstock ejector spindle of the gear hobbing machine is an important part of the gear hobbing machine, which is used to support and drive the ejector of the gear hobbing machine. The ejector spindle is usually made of high-strength alloy steel or other alloy materials, with high rigidity and wear resistance. It is driven by a motor or other power source to realize the gear hobbing of the workpiece.

[0003] In the existing technology, when the spindle is used on the gear hobbing machine, the surface of the spindle is relatively round when it is connected. As a result, when it is fixed, the thread or other connection methods cannot fully lock the spindle due to the relatively round surface of the spindle and the lack of rough surface features. This may cause the connection parts to vibrate, deviate or even disengage due to looseness during use, and the connection parts may not fit tightly against the spindle surface, so that uniform force transmission cannot be achieved. This may lead to concentration or imbalance of force, affecting the performance and stability of mechanical equipment. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and provides a limiting and fixing structure for the spindle of a tailstock of a gear hobbing machine.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a hobbing machine tailstock ejector spindle limit fixing structure, comprising: a fixing mechanism, an auxiliary mechanism is arranged inside the fixing mechanism, the fixing mechanism comprises a spindle body, a bearing is arranged on the outside of the spindle body, a connecting frame is arranged on the outside of the bearing, four triangular blocks are arranged inside the connecting frame, four fixing blocks are arranged on one side of the triangular block, four locking blocks are arranged on the bottom end of the fixing block, four spring pieces are arranged on one side of the fixing block, a toothed disc is arranged at one end of the spring piece, a motor is arranged on one side of the toothed disc, and four hanging ears are arranged on the outside of the connecting frame.

[0006] As a preferred embodiment, the auxiliary mechanism includes a guide screw rod, the outer side of the guide screw rod is connected to the inside of the connecting frame, the outer side of the screw rod is threadedly connected to the inner surface of the nut, one side of the nut is in contact with one side of the connecting frame, and one end of the screw rod is fixedly connected to one end of the motor.

[0007] As a preferred embodiment, the outer side of the main shaft body is rotatably connected to the inner ring of the bearing, and the outer ring of the bearing is fixedly connected to the inner surface of the connecting frame.

[0008] As a preferred implementation, one end of the connection frame is internally fixedly connected to one end of the triangular block, and one side of the triangular block is in contact with the top of the fixed block.

[0009] As a preferred embodiment, a slide groove is provided on one side of the crankset, the inner surface of the slide groove is fixedly connected to the bottom end of the spring sheet, and the top end of the spring sheet is fixedly connected to one end of the side of the fixing block.

[0010] As a preferred implementation, the bottom end of the fixing block is fixedly connected to the top end of the locking block, and the bottom end of the locking block is engaged with the outer side of the main shaft body.

[0011] As a preferred implementation, one end of the main shaft body is connected to the inner wall of the motor.

[0012] As a preferred implementation, one end of the motor is fixedly connected to one side of the crankset.

[0013] Compared with the prior art, the advantages and positive effects of the utility model are:

[0014] 1. By inserting one end of the main shaft body into the toothed disc and partially extending it, and a groove is designed on the main shaft body, the spring piece will retract as it is extended without external force, and the fixed block will be moved down, so that the locking block at the bottom of the fixed block enters the main shaft body, restricting it, so that it will not loosen or leave the fixed position during the working process. The triangular block presses the fixed block under the external force of the connecting frame, which can prevent the fixed block from loosening or displacement during the working process;

[0015] 2. Through the installation of four guide screws, the connection frame only needs to be pushed into the corresponding connected holes during the entry process. The guide screws can ensure that the connection frame moves along the predetermined trajectory during the entry process, thereby achieving precise positioning. This can avoid deviation or misalignment of components during the installation process and ensure the accuracy and reliability of the connection. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The utility model provides a schematic structural diagram of a gear hobbing machine tailstock ejector spindle limiting and fixing structure.

[0017] Figure 2 The utility model provides a schematic diagram of the expanded structure of the components of the limit fixing structure of the ejector spindle of the tailstock of a gear hobbing machine.

[0018] Figure 3 The utility model provides a schematic cross-sectional structure diagram of a component of a gear hobbing machine tailstock ejector spindle limiting and fixing structure.

[0019] Figure 4The utility model provides a schematic diagram of the structure of some components of the limit fixing structure of the ejector spindle of the tailstock of a gear hobbing machine.

[0020] Legend:

[0021] 1. Fixing mechanism; 11. Spindle body; 12. Motor; 13. Tooth plate; 14. Slideway; 15. Shrapnel; 16. Fixing block; 17. Locking block; 18. Connecting frame; 19. Triangular block; 110. Bearing; 111. Hanging ear;

[0022] 2. Auxiliary mechanism; 21. Guide screw; 22. Nut. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] Example 1

[0025] like Figure 1 - Figure 4 As shown, the utility model provides a technical solution: a hobbing machine tailstock ejector spindle limit fixing structure, comprising: a fixing mechanism 1, an auxiliary mechanism 2 is arranged inside the fixing mechanism 1, the fixing mechanism 1 comprises a spindle body 11, a bearing 110 is arranged outside the spindle body 11, a connecting frame 18 is arranged outside the bearing 110, four triangular blocks 19 are arranged inside the connecting frame 18, four fixing blocks 16 are arranged on one side of the triangular block 19, four locking blocks 17 are arranged at the bottom end of the fixing block 16, four spring pieces 15 are arranged on one side of the fixing block 16, a toothed disc 13 is arranged at one end of the spring piece 15, a motor 12 is arranged on one side of the toothed disc 13, and four hanging ears 11 are arranged on the outside of the connecting frame 18. 1. The outer side of the main shaft body 11 is rotatably connected to the inner ring of the bearing 110, the outer ring of the bearing 110 is fixedly connected to the inner surface of the connecting frame 18, the inner side of one end of the connecting frame 18 is fixedly connected to one end of the triangular block 19, one side of the triangular block 19 is in contact with the top of the fixed block 16, a slide groove 14 is provided on one side of the toothed disc 13, the inner surface of the slide groove 14 is fixedly connected to the bottom end of the spring piece 15, the top end of the spring piece 15 is fixedly connected to one end of the side of the fixed block 16, the bottom end of the fixed block 16 is fixedly connected to the top end of the locking block 17, the bottom end of the locking block 17 is clamped with the outer side of the main shaft body 11, one end of the main shaft body 11 is communicated with the inner wall of the motor 12, and one end of the motor 12 is fixedly connected to one side of the toothed disc 13.

[0026] In this embodiment, when the staff is fixing the spindle body 11, one end of the spindle body 11 is inserted into the toothed disc 13 and extends into a part of the motor 12. During the extension process, the fixing block 16 is first subjected to external force, and then moves up slightly in the slide groove 14. The spindle body 11 is designed with a groove. As the extension spring piece 15 is not subjected to external force, it will retract and move the fixing block 16 downward, so that the locking block 17 at the bottom end of the fixing block 16 enters the spindle body 11 to restrict it, so that it will not be loosened or separated from the fixed position during the working process.

[0027] Secondly, after the above process is completed, the connecting frame 18 is pushed along the main shaft body 11 so that the inner ring of the bearing 110 fits with the outer side of the main shaft body 11, and the inner ring of the bearing 110 fits with the outer side of the main shaft body 11. This can provide axial support, so that the main shaft body 11 can remain stable during rotation and reduce swinging and shaking. At this time, continue to push to combine the triangular block 19 with the top of the fixed block 16, so that the triangular block 19 presses the fixed block 16 with the help of the external force of the connecting frame 18, so that the fixed block 16 can be subjected to a stable pressing force, which can avoid the fixed block 16 from loosening or displacement during operation, improve the stability of the entire system, and effectively prevent the fixed block 16 from loosening or detaching under vibration, impact or workload.

[0028] Example 2

[0029] like Figure 1 - Figure 2 As shown, the auxiliary mechanism 2 includes a guide screw rod 21, the outer side of the guide screw rod 21 is connected to the inside of the connecting frame 18, the outer side of the screw rod is threadedly connected to the inner surface of the nut 22, one side of the nut 22 is in contact with one side of the connecting frame 18, and one end of the screw rod is fixedly connected to one end of the motor 12.

[0030] In this embodiment, when the connecting frame 18 is combined with the main shaft body 11, the four guide screws 21 are installed so that the connecting frame 18 only needs to be pushed into the corresponding connected holes during the entry process. The guide screws 21 can ensure that the connecting frame 18 moves along a predetermined trajectory during the entry process, thereby achieving precise positioning. This can avoid deviation or misalignment of components during the installation process, ensure the accuracy and reliability of the connection, and precise positioning can avoid additional impact and extrusion of the connecting components during the installation process, reducing damage or wear of components caused by improper installation. Finally, the nut 22 is connected to the guide screw 21 and the connecting frame 18 is fixed at the same time, so that the connecting frame 18 is firmly fixed in the desired position, avoiding loosening or displacement of the connection due to vibration or external force, and ensuring the firmness and stability of the connection.

[0031] Working principle:

[0032] like Figure 1 - Figure 4 As shown, when the utility model is in use, according to the needs of the user, one end of the main shaft body 11 is inserted into the toothed disc 13 and extends into a part of the motor 12. During the extension process, the fixed block 16 will first be subjected to external force, and will move up slightly in the slide groove 14. The main shaft body 11 is designed with a groove. As the extension spring piece 15 is not subjected to external force, it will retract and move the fixed block 16 downward, so that the locking block 17 at the bottom end of the fixed block 16 enters the main shaft body 11 to restrict it, and then the connecting frame 18 is pushed along the main shaft body 11, so that the triangular block 19 is combined with the top end of the fixed block 16, so that the triangular block 19 presses the fixed block 16 under the external force of the connecting frame 18, so that the fixed block 16 can be subjected to a stable pressing force, which can prevent the fixed block 16 from loosening or displacement during the working process;

[0033] By installing four guide screws 21, the connection frame 18 only needs to be pushed into the corresponding connected holes during the entry process. The guide screws 21 can ensure that the connection frame 18 moves along a predetermined trajectory during the entry process, thereby achieving precise positioning. This can avoid deviation or misalignment of components during the installation process and ensure the accuracy and reliability of the connection.

[0034] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A gear hobbing machine tailstock ejector spindle limit fixing structure, characterized in that: include: A fixing mechanism (1), wherein an auxiliary mechanism (2) is arranged inside the fixing mechanism (1), wherein the fixing mechanism (1) comprises a main shaft body (11), a bearing (110) is arranged outside the main shaft body (11), a connecting frame (18) is arranged outside the bearing (110), four triangular blocks (19) are arranged inside the connecting frame (18), four fixing blocks (16) are arranged on one side of the triangular blocks (19), four locking blocks (17) are arranged at the bottom end of the fixing blocks (16), four spring sheets (15) are arranged on one side of the fixing blocks (16), a toothed disc (13) is arranged at one end of the spring sheet (15), a motor (12) is arranged on one side of the toothed disc (13), and four hanging ears (111) are arranged on the outside of the connecting frame (18).

2. The limiting and fixing structure of the tailstock ejector spindle of a gear hobbing machine according to claim 1 is characterized in that: The auxiliary mechanism (2) comprises a guide screw rod (21), the outer side of the guide screw rod (21) is connected to the inside of the connecting frame (18), the outer side of the screw rod is threadedly connected to the inner surface of a nut (22), one side of the nut (22) is in contact with one side of the connecting frame (18), and one end of the screw rod is fixedly connected to one end of the motor (12).

3. The limiting and fixing structure of the tailstock ejector spindle of a gear hobbing machine according to claim 1 is characterized in that: The outer side of the main shaft body (11) is rotatably connected to the inner ring of the bearing (110), and the outer ring of the bearing (110) is fixedly connected to the inner surface of the connection frame (18).

4. The limiting and fixing structure of the tailstock ejector spindle of a gear hobbing machine according to claim 1 is characterized in that: One end of the connection frame (18) is fixedly connected to one end of the triangular block (19) and one side of the triangular block (19) is in contact with the top of the fixed block (16).

5. The limiting and fixing structure of the tailstock ejector spindle of a gear hobbing machine according to claim 1 is characterized in that: A slide groove (14) is provided on one side of the toothed disc (13); the inner surface of the slide groove (14) is fixedly connected to the bottom end of the spring sheet (15); and the top end of the spring sheet (15) is fixedly connected to one end of the side of the fixing block (16).

6. The limiting and fixing structure of the ejector spindle of the tailstock of a gear hobbing machine according to claim 1 is characterized in that: The bottom end of the fixing block (16) is fixedly connected to the top end of the locking block (17), and the bottom end of the locking block (17) is clamped with the outer side of the main shaft body (11).

7. The limiting and fixing structure of the tailstock ejector spindle of a gear hobbing machine according to claim 1 is characterized in that: One end of the main shaft body (11) is in communication with the inner wall of the motor (12).

8. The limiting and fixing structure of the tailstock ejector spindle of a gear hobbing machine according to claim 1 is characterized in that: One end of the motor (12) is fixedly connected to one side of the toothed disc (13).

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