Gear aligning device for gear hobbing

Abstract

The gear aligning device comprises a fixing frame, a supporting table is fixedly connected to the bottom of the fixing frame, a third motor is fixedly installed at the middle end of the top of an inner cavity of the supporting table, and a supporting disc is fixedly installed at the output end of the third motor. And a second motor is fixedly installed at the right end of the top of the inner cavity of the supporting table, and an adjusting screw rod is fixedly installed at the output end of the second motor. Through the arrangement of the supporting disc, a gear blank needing gear hobbing can be supported, and through the arrangement of the second motor, the adjusting screw rod, the movable frame, the first motor and the hobbing cutter, rapid gear hobbing can be conducted on the surface of the gear blank; and through arrangement of a second motor, an adjusting screw rod, a moving frame, a moving plate, a first spring, a pull rope, a moving frame, a supporting shaft, a third motor and a supporting disc, different teeth of the comparison gear and the gear subjected to gear hobbing can be aligned.

Description

Technical Field

[0001] The utility model relates to the technical field of gear processing, in particular to a gear tooth alignment device for hobbing. Background Technique

[0002] Gear hobbing is a gear processing method, belonging to the generating method of machining. Its working principle is equivalent to the meshing of a pair of helical gears. A hob is used to process gears, similar to the meshing process of a helical cylindrical gear pair. This method is applicable to single-piece small-batch production and large-batch mass production. It can process spur and helical cylindrical gears, and even worm wheels, spline shafts, etc. The applicable range of hobbing is wide, including the processing of gears with large diameters, high hardness and strength. At present, after gear hobbing is completed, it is usually necessary to align the processed gear with a matching gear, so that personnel can judge whether the processed gear meets the standard through the meshing state between the gears. Since the number of teeth of the gear is large, during the process of tooth alignment by personnel, it is often necessary to manually rotate two groups of gears, and due to the heavy mass of the gears, the labor intensity of personnel operation is greatly increased during repeated operations. Content of the Utility Model

[0003] The purpose of the utility model is to provide a gear tooth alignment device for hobbing, which has the advantages of being convenient to align with a matching gear after gear hobbing is completed, so as to facilitate personnel to judge whether the processed gear meets the standard, and bringing great convenience to the work of personnel.

[0004] To achieve the above purpose, the utility model provides the following technical scheme: A gear tooth alignment device for hobbing, including a fixed frame, the bottom of the fixed frame is fixedly connected with a support table, the middle of the top of the inner cavity of the support table is fixedly installed with a third motor, the output end of the third motor is fixedly installed with a support disk, the right end of the top of the inner cavity of the support table is fixedly installed with a second motor, the output end of the second motor is fixedly installed with an adjusting screw rod, the top of the adjusting screw rod is movably connected to the top of the inner cavity of the fixed frame through a bearing, the surface of the adjusting screw rod is threadedly connected with a moving frame, the left end of the front surface of the moving frame is fixedly installed with a first motor, the output end of the first motor is fixedly installed with a hob, the back of the hob is movably connected to the left end of the moving frame through a bearing, the right end of the top of the inner cavity of the fixed frame is fixedly connected with a first spring, the bottom of the first spring is fixedly connected with a moving plate, the middle of the bottom of the moving plate is fixedly connected with a pull rope, the left side of the pull rope is fixedly connected with a moving frame, the top of the outer surface of the moving frame is movably connected with a support shaft through a bearing, and a comparison gear is fixedly installed at the top of the support shaft through a bolt.

[0005] As a preferred solution, the left end of the top surface of the fixed frame is fixedly connected with a coolant tank. The left end of the top of the coolant tank is fixedly connected with a liquid inlet pipe. The right end of the top of the coolant tank is fixedly installed with a delivery pump through a pipe. A cooling spray pipe is fixedly installed between the output end of the delivery pump and the left end of the top of the movable frame through a pipe.

[0006] As a preferred solution, the middle end of the top of the support disk is threadedly connected with a locking screw rod. The upper end of the locking screw rod is fixedly connected with a pressing disk.

[0007] As a preferred solution, the middle end of the top surface of the support platform is fixedly connected with an annular support seat. Support balls are movably connected between the four weeks of the top of the annular support seat and the four weeks of the bottom of the support disk.

[0008] As a preferred solution, the left end of the top of the support platform is fixedly connected with a guiding cross bar. The number of the guiding cross bars is two. The middle end of the movable frame is movably connected to the surface of the guiding cross bar. A second spring is fixedly connected between the lower end of the left side of the movable frame and the upper end of the left side of the inner cavity of the support platform.

[0009] As a preferred solution, the upper end of the right side of the inner cavity of the support platform is movably connected with a guiding wheel through a bearing. The right end of the pull rope is movably connected to the surface of the guiding wheel.

[0010] As a preferred solution, the right side of the fixed frame is fixedly connected with a guiding vertical rod. The right end of the movable plate is movably connected to the upper end of the guiding vertical rod. The right end of the movable frame is movably connected to the lower end of the guiding vertical rod.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0012] 1. Through the setting of the support disk, the present utility model can support the blank to be hobbed. Through the setting of the second motor, the adjusting screw rod, the movable frame, the first motor and the hob, the surface of the blank can be quickly hobbed. Through the setting of the second motor, the adjusting screw rod, the movable frame, the movable plate, the first spring, the pull rope, the movable frame, the support shaft, the third motor and the support disk, the teeth of the comparison gear and the hobbed gear can be aligned with each other, so as to facilitate the personnel to judge whether the hobbed gear meets the standard according to the meshing state. The overall operation is convenient and fast, without manual operation by the personnel, thus bringing great convenience to the work of the personnel.

[0013] 2. With the provision of the coolant tank, delivery pump, and cooling nozzle, under the action of the delivery pump, the coolant inside the coolant tank can be extracted and sprayed onto the surfaces of the hob and the to-be-machined gear blank through the cooling nozzle, enabling effective cooling during the hobbing process of the hob on the gear blank, avoiding high temperature from affecting the service life of the hob. With the provision of the locking screw and the pressing disc, the gear blank to be hobbed on the top of the support disc can be effectively clamped and fixed, effectively preventing the gear blank from shifting during the machining process. With the provision of the annular support base and support balls, the bottom of the support disc can be effectively supported, effectively preventing the support disc from tilting due to the applied force. With the provision of the guiding cross bar, the purpose of supporting and guiding the moving frame is achieved, effectively preventing the moving frame from tilting during movement. With the provision of the second spring, during the movement of the moving frame to the right, the second spring can be stretched, enabling the second spring to exert a pulling force on the moving frame, thus facilitating the subsequent leftward movement and resetting of the moving frame. With the provision of the guiding wheel, the purpose of guiding the pulling rope is achieved, facilitating the pulling rope to drive the moving frame to move to the right during movement. With the provision of the guiding vertical rod, the purpose of guiding the moving plate and the moving frame is achieved, preventing the moving plate and the moving frame from tilting during movement. Description of the Drawings

[0014] Figure 1 is a three-dimensional view of the present utility model;

[0015] Figure 2 is a three-dimensional view of another perspective of the present utility model;

[0016] Figure 3 is a front sectional structure schematic diagram of the present utility model;

[0017] Figure 4 is a front sectional structure schematic diagram of the annular support base of the present utility model.

[0018] In the figure: 1, support table; 2, annular support base; 3, guiding cross bar; 4, moving frame; 5, comparison gear; 6, moving frame; 7, guiding vertical rod; 8, moving plate; 9, fixed frame; 10, coolant tank; 11, delivery pump; 12, hob; 13, support disc; 14, first motor; 15, adjusting screw; 16, cooling nozzle; 17, first spring; 18, guiding wheel; 19, second motor; 20, third motor; 21, pulling rope; 22, second spring; 23, support shaft; 24, pressing disc; 25, locking screw; 26, support ball. Detailed Description of the Embodiment

[0019] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0020] Secondly, the so-called "one embodiment" or "embodiment" herein refers to a specific feature, structure or characteristic that can be included in at least one implementation manner of the present invention. The "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor is it an individual or selectively mutually exclusive embodiment with other embodiments.

[0021] Embodiment 1:

[0022] Please refer to Figures 1 - 4 As shown, the present invention provides a gear alignment device for hobbing, including a fixed frame 9. The bottom of the fixed frame 9 is fixedly connected with a support table 1. The middle end of the top inner cavity of the support table 1 is fixedly installed with a third motor 20. The output end of the third motor 20 is fixedly installed with a support disk 13. The right end of the top inner cavity of the support table 1 is fixedly installed with a second motor 19. The output end of the second motor 19 is fixedly installed with an adjustment screw rod 15. The top of the adjustment screw rod 15 is movably connected to the top of the inner cavity of the fixed frame 9 through a bearing. A moving frame 6 is threadedly connected to the surface of the adjustment screw rod 15. The left end of the front surface of the moving frame 6 is fixedly installed with a first motor 14. The output end of the first motor 14 is fixedly installed with a hob 12. The back of the hob 12 is movably connected to the left end of the moving frame 6 through a bearing. The right end of the top inner cavity of the fixed frame 9 is fixedly connected with a first spring 17. The bottom of the first spring 17 is fixedly connected with a moving plate 8. The middle end of the bottom of the moving plate 8 is fixedly connected with a pulling rope 21. The left side of the pulling rope 21 is fixedly connected with a moving frame 4. The top of the outer surface of the moving frame 4 is movably connected to a support shaft 23 through a bearing. The top of the support shaft 23 is fixedly installed with a comparison gear 5 through a bolt.

[0023] In this technical solution, through the setting of the support disc 13, the blank to be hobbing processed can be supported. Through the setting of the second motor 19, the adjusting screw 15, the moving frame 6, the first motor 14 and the hob 12, rapid hobbing processing can be carried out on the surface of the blank. Through the setting of the second motor 19, the adjusting screw 15, the moving frame 6, the moving plate 8, the first spring 17, the pull rope 21, the moving frame 4, the support shaft 23, the third motor 20 and the support disc 13, the comparison gear 5 can be aligned with different teeth of the hobbing processed gear, so as to facilitate the personnel to judge whether the hobbing processed gear meets the standard according to the meshing state. The overall operation is convenient and fast, without manual operation by personnel, thus bringing great convenience to the work of personnel.

[0024] Embodiment 2:

[0025] On the basis of Embodiment 1, as shown in the present utility model Figures 1 - 4 shown, the left end of the top surface of the fixed frame 9 is fixedly connected with a coolant tank 10. The left end of the top of the coolant tank 10 is fixedly connected with a liquid inlet pipe. The right end of the top of the coolant tank 10 is fixedly installed with a delivery pump 11 through a pipeline. A cooling spray pipe 16 is fixedly installed between the output end of the delivery pump 11 and the left end of the top of the moving frame 6 through a pipeline. The middle end of the top of the support disc 13 is threadedly connected with a locking screw 25. The upper end of the locking screw 25 is fixedly connected with a pressing disc 24. The middle end of the top surface of the support table 1 is fixedly connected with an annular support seat 2. Support balls 26 are movably connected between the four circumferences of the top of the annular support seat 2 and the four circumferences of the bottom of the support disc 13. The left end of the top of the support table 1 is fixedly connected with a guiding cross bar 3. The number of the guiding cross bars 3 is two. The middle end of the moving frame 4 is movably connected to the surface of the guiding cross bar 3. A second spring 22 is fixedly connected between the lower end of the left side of the moving frame 4 and the upper end of the left side of the inner cavity of the support table 1. The upper end of the right side of the inner cavity of the support table 1 is movably connected with a guiding wheel 18 through a bearing. The right end of the pull rope 21 is movably connected to the surface of the guiding wheel 18. The right side of the fixed frame 9 is fixedly connected with a guiding vertical rod 7. The right end of the moving plate 8 is movably connected to the upper end of the guiding vertical rod 7. The right end of the moving frame 6 is movably connected to the lower end of the guiding vertical rod 7.

[0026] In this technical solution, through the settings of the coolant tank 10, the delivery pump 11, and the cooling nozzle 16, the delivery pump 11 can extract the coolant inside the coolant tank 10 and spray it onto the surfaces of the hob 12 and the to-be-machined gear blank through the cooling nozzle 16, so as to effectively cool down during the process of the hob 12 performing hobbing on the gear blank, avoiding high temperature from affecting the service life of the hob 12. Through the settings of the locking screw 25 and the pressing disc 24, the gear blank to be hobbed on the top of the support disc 13 can be effectively pressed and fixed, effectively preventing the gear blank from shifting during the machining process. Through the settings of the annular support base 2 and the support balls 26, the bottom of the support disc 13 can be effectively supported, effectively preventing the support disc 13 from tilting due to the applied force. Through the setting of the guiding cross bar 3, the purpose of supporting and guiding the moving frame 4 is achieved, effectively preventing the moving frame 4 from tilting during the movement process. Through the setting of the second spring 22, the second spring 22 can be stretched during the process of the moving frame 4 moving to the right, and the second spring 22 can generate a pulling force on the moving frame 4, thus facilitating the subsequent movement and reset of the moving frame 4 to the left. Through the setting of the guiding wheel 18, the purpose of guiding the pulling rope 21 is achieved, so that the pulling rope 21 can drive the moving frame 4 to move to the right during the movement process. Through the setting of the guiding vertical rod 7, the purpose of guiding the moving plate 8 and the moving frame 6 is achieved, preventing the moving plate 8 and the moving frame 6 from tilting during the movement process.

[0027] The working principle of the present utility model is as follows: Through the arrangement of the support disc 13, the blank to be hobbing processed can be supported. By starting the second motor 19 to work, the adjusting screw rod 15 can be driven to rotate. When the adjusting screw rod 15 rotates, the moving frame 6, the first motor 14 and the hob 12 can be driven to move downward. When the hob 12 contacts the blank, under the action of the first motor 14 working, the hob 12 can be driven to rotate rapidly, so that rapid hobbing processing can be carried out on the surface of the blank. And when the hobbing operation is completed, by starting the second motor 19 to work, the adjusting screw rod 15 can be driven to rotate in the other direction. When the adjusting screw rod 15 rotates, the moving frame 6, the first motor 14 and the hob 12 can be driven to move upward. When the hob 12 is separated from the surface of the gear that has been hobbing processed, under the continuous movement of the moving frame 6, it can contact the bottom of the moving plate 8 and push the moving plate 8 to move upward, so that the first spring 17 can be compressed. When the moving plate 8 moves, the pull rope 21 can be driven to move. And when the pull rope 21 moves, it can pull the moving frame 4, the support shaft 23 and the comparison gear 5 to move until the comparison gear 5 and the gear hobbed on the top of the support disc 13 are aligned. Subsequently, by starting the third motor 20 to work, the support disc 13 and the hobbed gear can be driven to rotate, so that different teeth of the hobbed gear can mesh with the comparison gear 5, which is convenient for personnel to judge whether the hobbed gear meets the standard according to the meshing state. The overall operation is convenient and fast, without manual operation by personnel, thus bringing great convenience to the work of personnel.

[0028] Importantly, it should be noted that the construction and arrangement of the present application shown in multiple different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who refer to this disclosure should easily understand that many modifications are possible without substantially departing from the novel teachings and advantages of the subject matter described in this application (for example, changes in the dimensions, scales, structures, shapes and proportions of various elements, as well as parameter values (such as temperature, pressure, etc.), installation arrangements, use of materials, colors, orientations, etc.). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of the element may be inverted or otherwise changed, and the nature, number or position of discrete elements may be altered or changed. Accordingly, all such modifications are intended to be included within the scope of the present utility model. The order or sequence of any process or method steps may be changed or reordered according to alternative embodiments. In the claims, any "means-plus-function" clause is intended to cover the structures that perform the recited function described herein, and not only structural equivalents but also equivalent structures. Other substitutions, modifications, changes and omissions may be made in the design, operating conditions and arrangement of the exemplary embodiments without departing from the scope of the present utility model. Therefore, the present utility model is not limited to a specific embodiment, but extends to various modifications that still fall within the scope of the appended claims.

[0029] In addition, to provide a concise description of the exemplary embodiments, all features of the actual embodiments may not be described (i.e., those features that are not relevant to the currently contemplated best mode of carrying out the present utility model or those features that are not relevant to the implementation of the present utility model).

[0030] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present utility model, rather than to limit the protection scope of the present utility model. Although the present utility model has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present utility model may be modified or equivalently replaced without departing from the essence and scope of the technical solutions of the present utility model.

Claims

1. A gear tooth alignment device for hobbing, comprising a fixed frame (9), characterized in that: The bottom of the fixed frame (9) is fixedly connected with a support platform (1). In the middle of the top of the inner cavity of the support platform (1), a third motor (20) is fixedly installed. The output end of the third motor (20) is fixedly installed with a support disc (13). At the right end of the top of the inner cavity of the support platform (1), a second motor (19) is fixedly installed. The output end of the second motor (19) is fixedly installed with an adjusting screw rod (15). The top of the adjusting screw rod (15) is movably connected to the top of the inner cavity of the fixed frame (9) through a bearing. A moving frame (6) is threadedly connected to the surface of the adjusting screw rod (15). At the left end of the front surface of the moving frame (6), a first motor (14) is fixedly installed. The output end of the first motor (14) is fixedly installed with a hob (12). The back of the hob (12) is movably connected to the left end of the moving frame (6) through a bearing. At the right end of the top of the inner cavity of the fixed frame (9), a first spring (17) is fixedly connected. The bottom of the first spring (17) is fixedly connected with a moving plate (8). In the middle of the bottom of the moving plate (8), a pull rope (21) is fixedly connected. The left side of the pull rope (21) is fixedly connected with a moving frame (4). The top of the outer surface of the moving frame (4) is movably connected to a support shaft (23) through a bearing. At the top of the support shaft (23), a comparison gear (5) is fixedly installed through a bolt.

2. The gear pair-tooth device for hobbing according to claim 1, characterized in that: At the left end of the top of the outer surface of the fixed frame (9), a coolant tank (10) is fixedly connected. At the left end of the top of the coolant tank (10), a liquid inlet pipe is fixedly connected. At the right end of the top of the coolant tank (10), a delivery pump (11) is fixedly installed through a pipeline. Between the output end of the delivery pump (11) and the left end of the top of the moving frame (6) through a pipeline, a cooling spray pipe (16) is fixedly installed.

3. A gear pair-tooth device for hobbing according to claim 1, characterized in that: In the middle of the top of the support disc (13), a locking screw rod (25) is threadedly connected. The upper end of the locking screw rod (25) is fixedly connected with a pressing disc (24).

4. A gear pair-tooth device for hobbing according to claim 1, characterized in that: In the middle of the top of the outer surface of the support platform (1), an annular support seat (2) is fixedly connected. Between the periphery of the top of the annular support seat (2) and the periphery of the bottom of the support disc (13), support balls (26) are movably connected.

5. A gear tooth alignment device for hobbing, according to claim 1, characterized in that: At the left end of the top of the support platform (1), a guiding cross bar (3) is fixedly connected. The number of the guiding cross bars (3) is two. The middle of the moving frame (4) is movably connected to the surface of the guiding cross bar (3). Between the lower end on the left side of the moving frame (4) and the upper end on the left side of the inner cavity of the support platform (1), a second spring (22) is fixedly connected.

6. The gear tooth alignment device for hobbing according to claim 1, characterized in that: At the upper end on the right side of the inner cavity of the support platform (1), a guiding wheel (18) is movably connected through a bearing. The right end of the pull rope (21) is movably connected to the surface of the guiding wheel (18).

7. A gear pair-tooth device for hobbing according to claim 1, characterized in that: On the right side of the fixed frame (9), a guiding vertical rod (7) is fixedly connected. The right end of the moving plate (8) is movably connected to the upper end of the guiding vertical rod (7). The right end of the moving frame (6) is movably connected to the lower end of the guiding vertical rod (7).

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