Machining tool for fan-shaped helical gear

Abstract

According to the technical scheme, the machining tool for the fan-shaped bevel gear is characterized by comprising a base, the base is fixedly connected with a shell, the shell abuts against a positioning assembly used for bearing a gear prefabricated part, two guide rails are symmetrically arranged in the shell, and machining assemblies are symmetrically installed on the two guide rails respectively. Each machining assembly comprises a bearing table connected with the guide rail in a sliding mode, the bearing table is connected with a motor in a sliding mode, the motor is connected with a machining head, the bottom of the machining head is fixedly connected with a fixing frame, the bearing table is further provided with a groove hole formed in the lower portion of the fixing frame, and the fixing frame is fixedly connected with a first positioning column contained in the groove hole. The purpose of blank machining and forming machining of the integrated fan-shaped bevel gear is achieved, the detachable first positioning column is arranged to serve as a connecting medium, the turning angle of the machining head can be adjusted, and the shape of a finished product needing to be produced can be adjusted according to actual requirements.

Description

Technical Field

[0001] The utility model relates to a processing tool, more particularly, to a processing tool for sector helical gears. Background Art

[0002] Sector helical gears combine the characteristics of sector gears and helical gears. They are non-standard components and are often used in customized products or lathes with streamlined structures. For example, when it is necessary to combine transmission steering with unidirectional transmission to achieve reciprocating motion, sector helical gears play an important role in specific occasions. Helical gears have a greater overlap than spur gears, which brings a stronger load-bearing capacity and can carry a greater maximum torque. They need to be processed multiple times according to actual use requirements. Usually, the blank is first processed to form a sector, and then formed into a helical gear, and finally finished. The finishing technology usually includes polishing and adjustment accuracy, etc. Each method has its technical characteristics and application limitations. In the actual processing process, it is found that the blank processing and forming processing are respectively set up on two processing machines. In this way, the efficiency of setting up two assembly lines to produce fan-shaped helical gears is higher. However, because fan-shaped helical gears are non-standard components, the actual demand is not high, and the assembly line production method is difficult to adjust the shape of the finished product to be produced. The two assembly lines instead reduce the production efficiency of fan-shaped helical gears. Therefore, a processing tool for fan-shaped helical gears is needed. The device can integrate the blank processing and forming processing of fan-shaped helical gears, and can adjust the shape of the finished product to be produced according to actual needs.

[0003] Considering the above reasons, how to integrate the blank processing and forming processing of the sector helical gear is exactly the problem considered in this application. Utility Model Content

[0004] In view of the shortcomings of the existing technology, a processing tool for sector helical gears is provided. The device can integrate the blank processing and forming processing of sector helical gears, and can adjust the shape of the finished product to be produced according to actual needs.

[0005] To achieve the above-mentioned purpose, the following technical solution is provided: a processing tool for fan-shaped helical gears, comprising a base, the base is fixedly connected to a shell, the shell abuts a positioning assembly for carrying a gear preform, two symmetrically arranged guide rails are provided in the shell, and symmetrically arranged processing assemblies are respectively installed on the two guide rails, the processing assembly comprises a bearing platform slidably connected to the guide rails, the bearing platform is slidably connected to a motor arranged away from the positioning assembly, the motor is connected to a processing head arranged toward the positioning assembly and for installing different cutting heads, the bottom of the processing head is fixedly connected to a fixing frame, the bearing platform is also provided with a slot hole provided below the fixing frame, the fixing frame is fixedly connected to a first positioning column accommodated in the slot hole, the first positioning column is detachably connected to the bearing platform, and the motor is fixedly connected to a second positioning column slidably connected to the bearing platform.

[0006] In summary, the above technical solution has the following beneficial effects: the processing of the sector helical gear is achieved by the tool head processing of the lathe, so it is necessary to set up two symmetrically arranged processing components respectively. The processing components can be equipped with different tool heads on the processing heads to realize cutting the gear preform to form gear teeth or form sector surfaces. In this way, one of the two processing components can be used to cut and form gear teeth, and the other can be used to cut and form sectors, thereby achieving the purpose of integrated sector helical gear blank processing and forming processing;

[0007] Since different sector helical gears have different specific requirements, such as sector angle or gear tooth inclination angle, a processing head with a replaceable cutter head is provided, and a first positioning column is also provided. The first positioning column can be removed so as to adjust the angle of the processing head before cutting. Then, the first positioning column is installed in the slot to fix the position of the processing head and adjust the gear tooth inclination angle formed by cutting. In addition, the supporting platform can also move to a certain extent, thereby further increasing the adjustable range and achieving the purpose of adjusting the shape of the finished product to be produced according to actual needs.

[0008] During actual operation, the carrier platform can be controlled to move back and forth according to needs, driving the movement of the cutter head to form a cutting effect, or the positioning component can be moved to drive the gear preform to move, thereby forming a cutting effect.

[0009] In addition, if only the first positioning column is used as a supporting part, it is easy to destroy the overall balance during the cutting operation. Therefore, a second positioning column is provided to assist in maintaining the balance. The second positioning column does not adopt a detachable connection method. In this way, when the processing head is rotated or moved, the second positioning column can form a drag fulcrum, which is convenient for the operator to adjust.

[0010] The utility model realizes the purpose of blank processing and forming processing of the integrated sector bevel gear by setting two processing components, and sets a detachable first positioning column as a connecting medium, so that the turning angle of the processing head can be adjusted, and the shape of the finished product to be produced can be adjusted according to actual needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a cross-sectional view of the housing of a processing tool for a sector helical gear;

[0012] Figure 2 for Figure 1 A partial enlarged view of point A in the middle;

[0013] Figure 3 It is a schematic diagram of the three-dimensional structure of the utility model;

[0014] Figure 4 A cross-sectional view of the processed component.

[0015] Reference numerals: 1, base; 2, housing; 3, positioning assembly; 4, processing assembly;

[0016] 21. Guide rail; 22. Protective shell; 23. Fixing piece; 24. Plug slot;

[0017] 31. Fixing seat; 32. Limiting piece; 33. First through hole; 34. Second through hole; 35. Fan ring hole; 36. Transmission shaft; 37. Blocking member;

[0018] 41. Carrying platform; 42. Motor; 43. Processing head; 44. Fixing frame;

[0019] 411, slot; 412, curved track; 413, brake device; 414, spacer; 415, second connector;

[0020] 421, second positioning column;

[0021] 441. First positioning column; 442. First connector. DETAILED DESCRIPTION

[0022] The present invention will be further described below in conjunction with the accompanying drawings and embodiments. Identical components are denoted by the same reference numerals. It should be noted that the terms "front," "rear," "left," "right," "upper," and "lower" used in the following description refer to directions in the accompanying drawings, and the terms "bottom," "top," "inner," and "outer" refer to directions toward or away from the geometric center of a particular component, respectively.

[0023] Reference Figure 1-4 As shown, a processing tool for a sector helical gear includes a base 1, the base 1 is fixedly connected to a shell 2, the shell 2 abuts a positioning assembly 3 for carrying a gear preform, two symmetrically arranged guide rails 21 are provided in the shell 2, and symmetrically arranged processing assemblies 4 are respectively installed on the two guide rails 21, the processing assembly 4 includes a bearing platform 41 slidably connected to the guide rail 21, the bearing platform 41 is slidably connected to a motor 42 arranged away from the positioning assembly 3, the motor 42 is connected to a processing head 43 arranged toward the positioning assembly 3 and for installing different cutting heads, the bottom of the processing head 43 is fixedly connected to a fixing frame 44, the bearing platform 41 is further provided with a slot 411 provided below the fixing frame 44, the fixing frame 44 is fixedly connected to a first positioning column 441 accommodated in the slot 411, the first positioning column 441 is detachably connected to the bearing platform 41, and the motor 42 is fixedly connected to a second positioning column 421 slidably connected to the bearing platform 41;

[0024] The processing of the sector helical gear is achieved by the tool head processing of the lathe, so it is necessary to set up two symmetrically arranged processing components 4. The processing components 4 can be equipped with different tool heads on the processing head 43 to achieve cutting the gear preform to form gear teeth or form a sector. In this way, the two processing components 4 can be used to cut and form gear teeth, while the other is used to cut and form the sector, thereby achieving the purpose of integrated sector helical gear blank processing and forming processing;

[0025] Since different sector helical gears have different specific requirements, such as sector angle or gear tooth inclination angle, a processing head 43 with a replaceable cutter head is provided, and a first positioning column 441 is also provided. The first positioning column 441 can be removed so as to adjust the angle of the processing head 43 before cutting. Then, the first positioning column 441 is installed in the slot 411 to fix the position of the processing head 43 and adjust the gear tooth inclination angle formed by cutting. In addition, the supporting platform 41 can also move to a certain extent, thereby further increasing the adjustable range and achieving the purpose of adjusting the shape of the finished product to be produced according to actual needs.

[0026] During actual operation, the supporting platform 41 can be controlled to move forward and backward according to needs, driving the movement of the cutter head to form a cutting effect, or the positioning component 3 can be moved to drive the gear preform to move, thereby forming a cutting effect.

[0027] In addition, if only the first positioning column 441 is used as a supporting part, the overall balance is easily destroyed during the cutting operation. Therefore, the second positioning column 421 is provided to assist in maintaining the balance. The second positioning column 421 does not adopt a detachable connection method. In this way, when the processing head 43 is rotated or moved, the second positioning column 421 can form a drag fulcrum, which is convenient for the operator to adjust.

[0028] The utility model realizes the purpose of blank processing and forming processing of the integrated sector bevel gear by setting two processing components 4, and sets a detachable first positioning column 441 as a connecting medium, so that the turning angle of the processing head 43 can be adjusted, and the shape of the finished product to be produced can be adjusted according to actual needs.

[0029] Furthermore, the supporting platform 41 is provided with an arc track 412 for accommodating the second positioning post 421. The arc track 412 is arranged in an arc shape with the slot 411 as the center. The side surface of the second positioning post 421 abuts against the side surface of the arc track 412.

[0030] Although the second positioning column 421 is mainly used to assist in maintaining balance and serve as a fulcrum when adjusting the position of the processing head 43, when operating the processing head 43, the motor 42 may move due to various reasons, and then the position needs to be re-corrected when installing the first positioning column 441, which is time-consuming and labor-intensive. Because the arc track 412 is used as a further restriction, when adjusting the angle of the processing head 43, the angle of the processing head 43 can be quickly and conveniently adjusted by moving the second positioning column on the arc track 412, saving the staff's time.

[0031] Furthermore, a plurality of embedding grooves are provided on the inner wall of the slot hole 411, and a plurality of first plug-in components 442 for being received in the embedding grooves are provided on the first positioning column 441;

[0032] The embedding groove and the first connector 442 cooperate with each other to fix the first positioning column 441. When the position of the processing head 43 needs to be adjusted, the processing head 43 can be directly lifted up, so that the first connector 442 can be separated from the embedding groove. After readjusting the angle, the first connector 442 can be accommodated in the embedding groove again.

[0033] Furthermore, a brake device 413 is fixedly connected to the bottom of the carrier platform 41 and is slidably connected to the guide rail 21;

[0034] When the mobile positioning assembly 3 is selected for processing, the brake device 413 can be used to fix the position of the carrier 41, thereby facilitating the processing operation.

[0035] Furthermore, the housing 2 is rotatably connected to the protective shell 22, and the side of the supporting platform 41 facing the connection between the housing 2 and the protective shell 22 is also fixedly connected to an isolating member 414. The side of the protective shell 22 facing the isolating member 414 is fixedly connected to a fixing member 23, and the fixing member 23 is provided with a plug-in slot 24. The isolating member 414 is fixedly connected to a second plug-in member 415 accommodated in the plug-in slot 24. The connection direction of the plug-in member and the fixing member 23 is consistent with the movement direction of the supporting platform 41.

[0036] The protective shell 22 is mainly used to prevent debris from flying and injuring workers during the cutting process, and the second connector 415 cooperates with the fixing member 23 to act as a safety lock. When the second connector 415 is accommodated in the insertion slot 24, the protective shell 22 rotates, causing the second connector 415 to contact the inner wall of the insertion slot 24, thereby preventing the protective shell 22 from opening.

[0037] Typically, the thickness of the gear preform is smaller than the length of the second connector 415 , so the second connector 415 will not leave the connector slot 24 during the cutting process, thus serving as a safety measure during the cutting operation.

[0038] Furthermore, the positioning assembly 3 includes a fixing base 31 detachably connected to the housing 2, a limiting plate 32 detachably connected in the middle of the fixing base 31, a first through hole 33 is provided in the middle of the fixing base 31, a second through hole 34 coaxially arranged with the first through hole 33 and a fan ring hole 35 coaxially arranged with the second through hole 34 are provided in the middle of the limiting plate 32, the inner diameter of the second through hole 34 is larger than the outer diameter of the fan ring hole 35, and the inner diameter of the fan ring hole 35 is larger than the outer diameter of the second through hole 34, the limiting plate 32 is slidably connected to a transmission shaft 36 slidably connected to the inner wall of the second through hole 34 and used to connect to the gear preform, and the transmission shaft 36 is fixedly connected to a blocking member 37 slidably connected to the inner wall of the fan ring hole 35;

[0039] The limit plate 32 is used to determine the connection of the transmission shaft 36, and the limit plate 32 can be replaced at will according to actual usage requirements. The fan ring hole 35 can limit the rotation angle of the transmission shaft 36, which can prevent excessive cutting due to various reasons, resulting in waste of gear preforms, thereby improving overall efficiency and utilization of gear preforms.

[0040] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiment. All technical solutions based on the concept of the present invention are within the scope of protection of the present invention. It should be noted that for those skilled in the art, certain improvements and modifications that do not depart from the principles of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. A processing tool for sector helical gears, characterized in that: The present invention relates to a method for adjusting the angle of the gear train and the control device, wherein the adjusting device is configured to measure the angle of the gear train and the control device is configured to measure the angle of the gear train. The adjusting device is configured to measure the angle of the gear train and the control device is configured to measure the angle of the gear train.

2. The processing tool for sector helical gear according to claim 1, characterized in that: The supporting platform is provided with an arc track for accommodating the second positioning column. The arc track is arranged in an arc shape with the slot hole as the center, and the side surface of the second positioning column abuts against the side surface of the arc track.

3. The processing tool for sector helical gear according to claim 2, characterized in that: A plurality of embedding grooves are provided on the inner wall of the slot hole, and a plurality of first plug-in components for being accommodated in the embedding grooves are provided on the first positioning column.

4. The processing tool for sector helical gears according to claim 1, characterized in that: The bottom of the bearing platform is fixedly connected to a brake device which is slidably connected to the guide rail.

5. The processing tool for sector helical gear according to claim 1, characterized in that: A protective shell is rotatably connected to the shell, and an isolating piece is fixedly connected to the side of the supporting platform facing the connection between the shell and the protective shell. A fixing piece is fixedly connected to the side of the protective shell facing the isolating piece. The fixing piece is provided with a plug-in slot, and the isolating piece is fixedly connected to a second plug-in piece accommodated in the plug-in slot. The connection direction of the plug-in piece and the fixing piece is consistent with the moving direction of the supporting platform.

6. The processing tool for sector helical gears according to claim 5, characterized in that: The positioning assembly includes a fixing seat detachably connected to the shell, a limiting plate detachably connected in the middle of the fixing seat, a first through hole is provided in the middle of the fixing seat, a second through hole coaxially arranged with the first through hole and a fan ring hole coaxially arranged with the second through hole are provided in the middle of the limiting plate, the inner diameter of the second through hole is larger than the outer diameter of the fan ring hole, the inner diameter of the fan ring hole is larger than the outer diameter of the second through hole, the limiting plate is slidably connected to a transmission shaft slidably connected to the inner wall of the second through hole and used to connect the gear preform, and the transmission shaft is fixedly connected to a blocking member slidably connected to the inner wall of the fan ring hole.

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