A hobbing device for camshaft production

Abstract

The utility model discloses a kind of hobbing device for camshaft production, including bottom plate, fixed plate, mounting bracket and tooth roll, the upper end of the fixed plate is connected with the bottom plate, the mounting bracket is spaced apart with the fixed plate and located above the bottom plate, the tooth roll is rotatably connected with the mounting bracket by rotating shaft, first motor for driving the rotation of the tooth roll is rotatably arranged on the mounting bracket, clamping assembly for clamping camshaft is arranged on the bottom plate, the fixed plate is equipped with driving assembly for driving the mounting bracket to be close to or away from the fixed plate. The utility model can drive tooth roll to be close to or away from camshaft, so that when camshaft of different diameters is used, the device can also be adjusted to the position of tooth roll to realize hobbing operation on camshaft, so as to effectively expand the application range of the device.

Description

Technical Field

[0001] This utility model relates to the field of camshaft machining technology, and in particular to a gear hobbing device for camshaft production. Background Technology

[0002] The camshaft is an important component in the engine, used to control the opening and closing of the valves, thereby controlling the intake and exhaust of the air-fuel mixture in the cylinder. The manufacturing of the camshaft requires a high-precision gear hobbing device to process the cam portion of the camshaft, and the camshaft needs to be hobbed during the processing.

[0003] Chinese utility model patent (application number CN202421008180.3) discloses a gear hobbing device for camshaft production. The device includes a positioning plate with an opening on its left side wall. The positioning plate is located to the left of the opening and has two locking holes. The left side wall of the machine has multiple insertion slots. The positioning plate is connected to the machine via a locking rod. A support rod is fixedly connected to the right side wall of the positioning plate, passing through the opening. A support frame is fixedly connected to the end of the support rod, and a motor is fixedly connected to the outer wall of the support frame. However, this patent does not allow for adjustment of the distance between the camshaft and the machining hob during use, thus limiting its processing to a single camshaft. Therefore, when processing camshafts of different sizes, different sized devices must be used, making operation very cumbersome. Utility Model Content

[0004] (a) Purpose of the utility model

[0005] To address the technical problems existing in the background art, this utility model proposes a gear hobbing device for camshaft production. This device can drive the gear roller to approach or move away from the camshaft, so that when camshafts of different diameters are used, the device can also perform gear hobbing operations on the camshaft by adjusting the position of the gear roller, thereby effectively expanding the applicability of the device.

[0006] (II) Technical Solution

[0007] This utility model provides a gear hobbing device for camshaft production, including a base plate, a fixed plate, a mounting frame, and a gear roller. The fixed plate is connected to the upper end of the base plate, and the mounting frame is spaced apart from the fixed plate and located above the base plate. The gear roller is rotatably connected to the mounting frame via a rotating shaft. A first motor for driving the gear roller to rotate is rotatably mounted on the mounting frame. The base plate is provided with a clamping assembly for clamping the camshaft, and the fixed plate is provided with a driving assembly for driving the mounting frame to move closer to or away from the fixed plate.

[0008] Preferably, the clamping assembly includes a mounting plate and a three-jaw chuck. The mounting plate is connected to the upper end of the base plate, and the three-jaw chuck is rotatably mounted on the mounting plate. The mounting plate is provided with a second motor for driving the three-jaw chuck to rotate.

[0009] Preferably, it further includes a connecting plate and two limiting plates. The connecting plate is spaced apart from the fixing plate and located between the fixing plate and the mounting frame. Limiting plates are provided at both the upper and lower ends of the connecting plate. The mounting frame is slidably disposed with the connecting plate and the limiting plates respectively. The connecting plate is provided with a driving unit for driving the mounting frame to move. The connecting plate is connected to the driving assembly in a transmission manner.

[0010] Preferably, the drive unit includes a first screw, a fixing block, and a third motor. The mounting bracket is provided with a first threaded through hole. The first screw is threaded into the first threaded through hole. The fixing block and the third motor are spaced apart at both ends of the first screw and are both connected to the connecting plate. One end of the first screw is rotatably connected to the fixing block, and the other end of the first screw is coaxially connected to the output shaft of the third motor.

[0011] Preferably, the drive assembly includes a connecting block and a cylinder. The fixed plate has two first openings spaced apart. A transmission plate is slidably disposed in the first opening. One end of the transmission plate is connected to the connecting plate, and the other end of the transmission plate passes through the first opening. The other ends of the two transmission plates are connected by the connecting block. The fixed end of the cylinder is connected to the end of the fixed plate away from the connecting plate. The telescopic rod of the cylinder is horizontally arranged and connected to the connecting block.

[0012] Preferably, the assembly further includes a collection box, a limiting block, a second screw, a locking block, and a nut. The collection box is placed on the base plate, and the outer ends of the collection box are respectively fitted to the fixing plate and the mounting plate. The limiting block is connected to the base plate and spaced apart from the fixing plate. The collection box can be moved to fit against the limiting block. The base plate has a second screw at the end away from the mounting plate. The locking block has a second opening for the second screw to pass through. The locking block is rotatably connected to the second screw. The nut is threaded onto the second screw and can be moved to abut against the locking block. The locking block can be rotated to fit against the collection box.

[0013] Compared with the prior art, the above-mentioned technical solution of this utility model has the following beneficial technical effects:

[0014] In this invention, the device can drive the toothed roller to move closer to or further away from the camshaft. Thus, when camshafts of different diameters are used, the device can also perform tooth hobbing operations on the camshaft by adjusting the position of the toothed roller, thereby effectively expanding the applicability of the device. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of a gear hobbing device for camshaft production proposed in this utility model.

[0016] Figure 2 This is a top view of a gear hobbing device for camshaft production proposed in this utility model.

[0017] Figure 3 This is a partially enlarged structural diagram of point A in a gear hobbing device for camshaft production proposed in this utility model.

[0018] Reference numerals in the attached drawings: 1. Base plate; 2. Fixing plate; 3. Mounting bracket; 4. Toothed roller; 5. Rotating shaft; 6. First motor; 7. Mounting plate; 8. Three-jaw chuck; 9. Second motor; 10. Connecting plate; 11. Limiting plate; 12. First screw; 13. Fixing block; 14. Third motor; 15. Transmission plate; 16. Connecting block; 17. Cylinder; 18. Collection box; 19. Limiting block; 20. Second screw; 21. Clamping block; 22. Nut. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this utility model. Furthermore, descriptions of well-known structures and technologies are omitted in the following description to avoid unnecessarily obscuring the concept of this utility model.

[0020] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used solely for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0021] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, such as welding, riveting, or bonding; it can also be a detachable connection, such as threaded connection, keyed connection, or pin connection; or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; or it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0022] like Figure 1-3 As shown, this utility model discloses a gear hobbing device for camshaft production, comprising a base plate, a fixed plate, a mounting frame, and a gear roller. The fixed plate is connected to the upper end of the base plate, the mounting frame is spaced apart from the fixed plate and located above the base plate, the gear roller is rotatably connected to the mounting frame via a rotating shaft, a first motor for driving the gear roller to rotate is rotatably mounted on the mounting frame, a clamping assembly for clamping the camshaft is provided on the base plate, and a driving assembly for driving the mounting frame to move closer to or away from the fixed plate is provided on the fixed plate.

[0023] In this invention, the device can process the camshaft using a clamping assembly. After clamping the camshaft, the operator can operate the drive assembly to move the mounting bracket closer to or away from the camshaft, depending on its size. As the mounting bracket moves, it drives the toothed roller to move, thus enabling the toothed roller to move closer to or away from the camshaft for gear hobbing. Because the device can drive the toothed roller closer to or away from the camshaft, it can also perform gear hobbing on camshafts of different diameters by adjusting the position of the toothed roller, thereby effectively expanding the applicability of the device.

[0024] Furthermore, this application also proposes that the clamping assembly includes a base plate 1, a fixed plate 2, a mounting frame 3, and a toothed roller 4. The fixed plate 2 is connected to the upper end of the base plate 1, the mounting frame 3 is spaced apart from the fixed plate 2 and located above the base plate 1, the toothed roller 4 is rotatably connected to the mounting frame 3 via a rotating shaft 5, a first motor 6 for driving the toothed roller 4 to rotate is rotatably mounted on the mounting frame 3, the base plate 1 is provided with a clamping assembly for clamping the camshaft, and the fixed plate 2 is provided with a driving assembly for driving the mounting frame 3 to move closer to or away from the fixed plate 2.

[0025] In this invention, the device can process the camshaft using a clamping assembly. After clamping the camshaft, the operator can operate the drive assembly to move the mounting bracket 3 closer to or further away from the camshaft, depending on its size. As the mounting bracket 3 moves, it can move the toothed roller 4, thus allowing the toothed roller 4 to move closer to or further away from the camshaft for gear hobbing. Since the device can drive the toothed roller 4 closer to or further away from the camshaft, it can also perform gear hobbing on camshafts of different diameters by adjusting the position of the toothed roller 4, thereby effectively expanding the applicability of the device.

[0026] Furthermore, this application also proposes that the clamping assembly includes a mounting plate 7 and a three-jaw chuck 8. The mounting plate 7 is connected to the upper end of the base plate 1, and the three-jaw chuck 8 is rotatably mounted on the mounting plate 7. The mounting plate 7 is provided with a second motor 9 for driving the three-jaw chuck 8 to rotate.

[0027] Specifically, the mounting plate 7 is fixedly connected to the upper end of the base plate 1 by bolts or welding to ensure the stability of the mounting plate 7. The three-jaw chuck 8 is rotatably mounted on the mounting plate 7 via bearings or bushings, allowing it to rotate freely. The second motor 9 is connected to the three-jaw chuck 8 via a coupling or belt drive, driving the three-jaw chuck 8 to rotate, thereby driving the camshaft to rotate.

[0028] Furthermore, this application proposes that the connecting plate 10 is spaced apart from the fixed plate 2 and located between the fixed plate 2 and the mounting frame 3. Limiting plates 11 are provided at both the upper and lower ends of the connecting plate 10. The mounting frame 3 is slidably disposed with respect to the connecting plate 10 and the limiting plates 11. A drive unit for driving the movement of the mounting frame 3 is provided on the connecting plate 10, and the connecting plate 10 is connected to the drive assembly for transmission. The arrangement of the connecting plate 10 and the limiting plates 11 further ensures the stability of the mounting frame 3 during sliding, preventing it from shifting or shaking. The drive unit can effectively drive the mounting frame 3 to move, thereby driving the toothed roller 4 on it to move.

[0029] Furthermore, this application also proposes that the drive unit includes a first screw 12, a fixing block 13 and a third motor 14. The mounting bracket 3 is provided with a first threaded through hole. The first screw 12 is threaded into the first threaded through hole. The fixing block 13 and the third motor 14 are spaced apart at both ends of the first screw 12 and are both connected to the connecting plate 10. One end of the first screw 12 is rotatably connected to the fixing block 13, and the other end of the first screw 12 is coaxially connected to the output shaft of the third motor 14.

[0030] Specifically, the first screw 12 engages with the first threaded through hole on the mounting bracket 3 via a thread, allowing the mounting bracket 3 to move axially along the first screw 12 when the third motor 14 drives the first screw 12 to rotate. The fixing block 13 supports the first screw 12, ensuring its stability during rotation. The third motor 14, as a power source, is coaxially connected to the first screw 12 via its output shaft, directly driving the first screw 12 to rotate.

[0031] Furthermore, this application also proposes that the drive assembly includes a connecting block 16 and a cylinder 17. The fixed plate 2 is provided with two first openings spaced apart. A transmission plate 15 is slidably provided in the first opening. One end of the transmission plate 15 is connected to the connecting plate 10, and the other end passes through the first opening. The other ends of the two transmission plates 15 are connected by the connecting block 16. The fixed end of the cylinder 17 is connected to the end of the fixed plate 2 away from the connecting plate 10. The telescopic rod of the cylinder 17 is horizontally set and connected to the connecting block 16.

[0032] Specifically, the fixed end of cylinder 17 is connected to the fixed plate 2, ensuring the stability of cylinder 17. The telescopic rod is connected to the connecting block 16. Through the telescopic movement of cylinder 17, the connecting block 16 and the transmission plate 15 are driven to move horizontally. One end of the transmission plate 15 is connected to the connecting plate 10, so that the movement of the transmission plate 15 can be directly transmitted to the connecting plate 10, thereby driving the movement of the mounting bracket 3.

[0033] Furthermore, this application also proposes that it further includes a collection box 18, a limiting block 19, a second screw 20, a locking block 21, and a nut 22. The collection box 18 is placed on the base plate 1, and the outer ends of the collection box 18 are respectively attached to the fixing plate 2 and the mounting plate 7. The limiting block 19 is connected to the base plate 1 and spaced apart from the fixing plate 2. The collection box 18 can be moved to be attached to the limiting block 19. The end of the base plate 1 away from the mounting plate 7 is provided with the second screw 20. The locking block 21 is provided with a second opening for the second screw 20 to pass through. The locking block 21 is rotatably connected to the second screw 20. The nut 22 is threaded onto the second screw. On rod 20, nut 22 can be moved to abut against block 21, and block 21 can be rotated to fit against collection box 18. Collection box 18 is used to collect waste or debris generated during processing. Limiting block 19 is used to limit the movement range of collection box 18 to ensure that collection box 18 remains stable during processing. When it is necessary to completely limit collection box 18, block 21 can be rotated to fit against collection box 18. After fitting, nut 22 can be rotated to abut against block 21 to complete the limiting of block 21, thereby improving the stability of limiting collection box 18.

[0034] It should be understood that the specific embodiments described above are merely illustrative or explanatory of the principles of this utility model and do not constitute a limitation thereof. Therefore, any modifications, equivalent substitutions, improvements, etc., made without departing from the spirit and scope of this utility model should be included within its protection scope. Furthermore, the appended claims are intended to cover all variations and modifications falling within the scope and boundaries of the appended claims, or equivalent forms of such scope and boundaries.

Claims

1. A gear hobbing device for camshaft production, characterized in that, The device includes a base plate, a fixed plate, a mounting bracket, and a toothed roller. The fixed plate is connected to the upper end of the base plate. The mounting bracket is spaced apart from the fixed plate and located above the base plate. The toothed roller is rotatably connected to the mounting bracket via a rotating shaft. A first motor for driving the toothed roller to rotate is rotatably mounted on the mounting bracket. The base plate is provided with a clamping assembly for clamping a camshaft. The fixed plate is provided with a driving assembly for driving the mounting bracket to move closer to or away from the fixed plate.

2. The gear hobbing device for camshaft production according to claim 1, characterized in that, The clamping assembly includes a mounting plate and a three-jaw chuck. The mounting plate is connected to the upper end of the base plate. The three-jaw chuck is rotatably mounted on the mounting plate. The mounting plate is provided with a second motor for driving the three-jaw chuck to rotate.

3. The gear hobbing device for camshaft production according to claim 1, characterized in that, It also includes a connecting plate and two limiting plates. The connecting plate is spaced apart from the fixing plate and located between the fixing plate and the mounting frame. The upper and lower ends of the connecting plate are provided with limiting plates. The mounting frame is slidably disposed with the connecting plate and the limiting plates respectively. The connecting plate is provided with a driving unit for driving the mounting frame to move. The connecting plate is connected to the driving assembly in a transmission manner.

4. The gear hobbing device for camshaft production according to claim 3, characterized in that, The drive unit includes a first screw, a fixing block, and a third motor. The mounting bracket is provided with a first threaded through hole. The first screw is threaded into the first threaded through hole. The fixing block and the third motor are spaced apart at both ends of the first screw and are both connected to the connecting plate. One end of the first screw is rotatably connected to the fixing block, and the other end of the first screw is coaxially connected to the output shaft of the third motor.

5. A gear hobbing device for camshaft production according to claim 4, characterized in that, The drive assembly includes a connecting block and a cylinder. The fixed plate has two first openings spaced apart. A transmission plate is slidably disposed in the first opening. One end of the transmission plate is connected to the connecting plate, and the other end of the transmission plate passes through the first opening. The other ends of the two transmission plates are connected by the connecting block. The fixed end of the cylinder is connected to the end of the fixed plate away from the connecting plate. The telescopic rod of the cylinder is horizontally arranged and connected to the connecting block.

6. A gear hobbing device for camshaft production according to claim 2, characterized in that, It also includes a collection box, a limiting block, a second screw, a locking block, and a nut. The collection box is placed on the base plate, and the outer ends of the collection box are respectively attached to the fixing plate and the mounting plate. The limiting block is connected to the base plate and spaced apart from the fixing plate. The collection box can be moved to be attached to the limiting block. The base plate has a second screw at the end away from the mounting plate. The locking block has a second opening for the second screw to pass through. The locking block is rotatably connected to the second screw. The nut is threaded onto the second screw and can be moved to abut against the locking block. The locking block can be rotated to be attached to the collection box.

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