A special tool holder for differential

Abstract

The utility model discloses a special tool apron of differential mechanism relates to numerical control machine tool accessory technical field, including the shell, shell front end and lower extreme install tool apron body and tool apron lower bearing seat respectively, and shell one side installs the locating plate, and shell upper end and rear end install first casing and second casing respectively, and shell rear end is provided with the locating hole and the shell hole, and the shell hole rear end is installed with the fourth casing, and tool apron lower bearing seat lower extreme rear end is installed with the third casing, the utility model discloses the cooperation between the driving shaft, main synchronous pulley, driven shaft, from synchronous pulley and belt, has played the role of transmission power, has solved the problem of traditional complex structure, has improved transmission efficiency and stability, through the cooperation of worm and turbine, has played the role of the rotary motion of driven shaft is converted into the rotary motion of rotating shaft and reduces the torque of speed regulation, has solved the problem of power transmission direction conversion and speed adjustment, has improved the stability and precision of transmission.

Description

Technical Field

[0001] This utility model relates to the field of CNC machine tool accessories technology, and in particular to a special tool holder for differential gears. Background Technology

[0002] In the field of CNC machine tool accessory technology, the differential is a key component of the automotive transmission system. Its machining accuracy and efficiency directly affect the performance of the whole vehicle. With the popularization of mill-turn machining technology, higher requirements are put forward for the transmission performance, positioning accuracy and reliability of special tool holders.

[0003] Currently, traditional differential gear machining tool holders generally suffer from the following problems: the transmission system mostly uses direct gear meshing or a single belt drive, resulting in complex transmission paths and low efficiency. During power transmission, slippage and high noise are common, making it difficult to meet the power stability requirements of high-precision machining. At the same time, the tool holder relies on manual positioning and locking during tool changing, which is cumbersome and the positioning accuracy is significantly affected by human factors, leading to low tool changing efficiency. Frequent manual intervention may also introduce positioning errors, seriously affecting machining accuracy and production efficiency. Therefore, it is necessary to improve and address the above problems. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a special tool holder for differential gears.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a differential gear tool holder, comprising a housing, wherein a tool holder body and a tool holder lower bearing seat are respectively installed at the front end and the lower end of the housing, and a positioning plate is installed on one side of the housing; a first housing and a second housing are respectively installed at the upper end and the rear end of the housing, and a positioning hole and a housing hole are respectively opened at one end and the rear end of the housing, a fourth housing is installed at the rear end of the housing hole, and a third housing is installed at the rear end of the bottom surface of the tool holder lower bearing seat.

[0006] Preferably, the front end of the tool holder is rotatably connected to a drive shaft, the rear end of the drive shaft is placed inside the housing, and the drive shaft is sequentially sleeved with a first transmission bearing, a main synchronous pulley, and a second transmission bearing from front to back, with the second transmission bearing sleeved on the front end of the fourth housing.

[0007] Preferably, a driven shaft is installed inside the housing, and the driven shaft is sequentially fitted with a driven synchronous pulley, a third transmission bearing, a worm gear and a fourth transmission bearing from front to back. The fourth transmission bearing is fitted onto the front end of the second housing, and a belt is meshed between the driven synchronous pulley and the main synchronous pulley.

[0008] Preferably, a rotating shaft is installed between the first housing and the third housing. The rotating shaft can be divided into an upper drive shaft end and a lower drive shaft end. The upper drive shaft end is located inside the outer housing, and the lower drive shaft end is located inside the lower bearing seat of the tool holder.

[0009] Preferably, the upper drive shaft end of the rotating shaft is sequentially fitted with a fifth drive bearing, a turbine, a sixth drive bearing, and an upper turntable from top to bottom, and the lower drive shaft end of the rotating shaft is sequentially fitted with a lower turntable, a seventh drive bearing, and an eighth drive bearing from top to bottom. The eighth drive bearing is installed in the lower bearing seat of the tool holder. A tool holder clamping platform is installed in the adjacent ends of the upper and lower turntables. Multiple equidistant fixing slots are opened at both the upper and lower ends of the tool holder clamping platform, and a positioning slot is opened on one side of the tool holder clamping platform. The positioning slot is concentric with the positioning hole of the outer shell, and a tool is installed in the fixing slot.

[0010] Preferably, a locking rod is installed inside the positioning plate, the front end of the locking rod is installed in the positioning hole, and a spring is sleeved on the locking rod, with the other end of the spring abutting against one side of the inner cavity of the positioning plate.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model, through the cooperation between the drive shaft, the main synchronous pulley, the driven shaft, the driven synchronous pulley, and the belt, plays the role of transmitting power, solving the problems of low efficiency and complex structure of traditional transmission methods, and improving transmission efficiency and stability; through the cooperation of the worm gear and the worm wheel, it plays the role of converting the rotational motion of the driven shaft into the rotational motion of the rotating shaft and reducing speed and increasing torque, solving the problems of power transmission direction conversion and speed adjustment, and improving transmission stability and accuracy; through the cooperation of the rotating shaft with the fifth, sixth, seventh, and eighth transmission bearings, it plays the role of supporting the rotating shaft and reducing its rotational friction, solving the wear and stability problems of the rotating shaft at high speed, and improving the service life and machining accuracy of the tool holder; through the cooperation of the locking rod with the positioning hole and the spring, it plays the role of quickly positioning and locking the tool holder clamping table, solving the problems of cumbersome operation and inaccurate positioning of traditional positioning methods, and improving tool changing efficiency and machining accuracy. Attached Figure Description

[0012] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0013] Figure 1 This is a schematic diagram of the overall structure proposed in this utility model;

[0014] Figure 2 This is a bottom view of the overall structure proposed in this utility model;

[0015] Figure 3 This is a schematic diagram of the outer shell structure proposed in this utility model;

[0016] Figure 4 This is a schematic diagram of the positioning hole and shell hole structure proposed in this utility model;

[0017] Figure 5 This is a partial structural schematic diagram of the present invention;

[0018] Figure 6 This is a partial structural diagram of the present invention;

[0019] Figure 7 This is a schematic diagram of the tool holder clamping platform and rotating shaft structure proposed in this utility model.

[0020] In the diagram, the following components are numbered: 1. Outer shell; 2. First housing; 3. Third housing; 4. Second housing; 5. Tool holder body; 6. Drive shaft; 7. Tool holder clamping table; 8. Tool; 9. Positioning plate; 10. Locking rod; 11. Spring; 12. First transmission bearing; 13. Main synchronous pulley; 14. Belt; 15. Fourth housing; 16. Driven shaft; 17. Worm gear; 18. Fourth transmission bearing; 19. Third transmission bearing; 20. Fifth transmission bearing; 21. Turbine; 22. Upper rotary table; 23. Lower bearing seat of the tool holder; 24. Driven synchronous pulley; 25. Lower rotary table; 26. Rotating shaft; 27. Sixth transmission bearing; 28. Seventh transmission bearing; 29. ​​Eighth transmission bearing; 30. Second transmission bearing; 31. Positioning hole; 32. Shell hole. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] Example: See Figure 1-7This utility model discloses a differential gear tool holder, comprising a housing 1, which facilitates the installation of subsequent positioning and transmission equipment; a tool holder body 5 and a lower bearing seat 23 are respectively installed at the front and lower ends of the housing 1, with the tool holder body 5 facilitating the installation of the positioning drive shaft 6; the lower bearing seat 23 facilitates the installation of the housing 1, the tool holder body 5, and the positioning plate 9; and a positioning plate 9 is installed on one side of the housing 1, facilitating the subsequent installation of the locking rod 10; a first housing 2 and a second housing 4 are respectively installed at the upper and rear ends of the housing 1, with the first housing 2 facilitating the addition of lubricating oil to the rotating shaft 26; and the second housing 4 facilitating the addition of lubricating oil to the driven shaft 16; and a positioning hole 31 and a housing hole 32 are respectively opened at one end and the rear end of the housing 1, with the positioning hole 31 facilitating the alignment of the positioning groove of the tool holder clamping platform 7 with the locking rod 10; a fourth housing 15 is installed at the rear end of the housing hole 32, facilitating the addition of lubricating oil to the drive shaft 6; and a third housing is installed at the rear end of the bottom surface of the lower bearing seat 23. Body 3, through the third housing 3, facilitates sealing of the lower end of the rotating shaft 26; the front end of the tool holder body 5 is rotatably connected to the drive shaft 6, through which the main synchronous pulley 13 is driven; the rear end of the drive shaft 6 is placed inside the housing 1, and the drive shaft 6 is sequentially fitted with a first transmission bearing 12, a main synchronous pulley 13, and a second transmission bearing 30 from front to back, through which the second transmission bearing 30 facilitates the rotation of the drive shaft 6; the second transmission bearing 30 is fitted onto the front end of the fourth housing 15, and a driven shaft 16 is installed inside the housing 1. The driven shaft 16 is sequentially fitted with a synchronous pulley 24, a third transmission bearing 19, a worm gear 17, and a fourth transmission bearing 18 from front to back. The third transmission bearing 19 and the fourth transmission bearing 18 facilitate the rotation of the driven shaft 16; the worm gear 17 facilitates the rotation of the subsequent drive turbine 21; the fourth transmission bearing 18 is fitted onto the front end of the second housing 4, and a belt 14 is meshed between the synchronous pulley 24 and the main synchronous pulley 13, which facilitates the transmission of the driving force of the drive shaft 6 to the driven shaft 16.

[0023] In this invention, a rotating shaft 26 is installed between the first housing 2 and the third housing 3. The rotating shaft 26 facilitates the installation of various auxiliary rotating parts and the tool holder clamping platform 7. The rotating shaft 26 can be divided into an upper drive shaft end and a lower drive shaft end. The upper drive shaft end is located inside the housing 1, and the lower drive shaft end is located inside the lower bearing seat 23 of the tool holder. From top to bottom, the upper drive shaft end of the rotating shaft 26 is sequentially fitted with a fifth drive bearing 20, a worm gear 21, a sixth drive bearing 27, and an upper turntable 22. The fifth drive bearing 20 and the sixth drive bearing 27 facilitate the rotation of the rotating shaft 26. The worm gear 21 facilitates the transmission of the driving force of the driven shaft 16 to the rotating shaft 26 in conjunction with the worm 17. The upper turntable 22 facilitates the installation of the tool holder clamping platform 7 in conjunction with the lower turntable 25. Furthermore, from top to bottom, the lower drive shaft end of the rotating shaft 26 is sequentially fitted with a lower turntable 25, a seventh drive bearing 28, and an eighth drive bearing 29. 9. The rotating shaft 26 is rotated by the seventh transmission bearing 28 and the eighth transmission bearing 29. The lower turntable 25 facilitates the installation of the tool holder clamping platform 7 with the upper turntable 22. The eighth transmission bearing 29 is installed in the lower bearing seat 23 of the tool holder. The tool holder clamping platform 7 is installed in the close end of the upper turntable 22 and the lower turntable 25. The tool holder clamping platform 7 facilitates the installation of the tool 8. The upper and lower ends of the tool holder clamping platform 7 are provided with multiple equidistant fixing slots. The tool holder clamping platform 7 is provided with a positioning slot on one side. The positioning slot is concentric with the positioning hole 31 set in the outer shell 1. The tool 8 is installed in the fixing slot. The tool 8 facilitates the cutting of the machined parts. The positioning plate 9 is provided with a locking rod 10. The front end of the locking rod 10 is installed in the positioning hole 31. The locking rod 10 is sleeved with a spring 11. The spring 11 facilitates the self-driving force to reset the locking rod 10. The other end of the spring 11 abuts against one side of the inner cavity of the positioning plate 9.

[0024] Working Principle: When using this invention, after installing all components except the positioning plate 9, locking rod 10, and spring 11, the lower bearing seat 23 of the tool holder is installed on the working surface. The first housing 2, the fourth housing 15 installed on the outer casing 1, and the second housing 4 installed on the lower bearing seat 23 of the tool holder are opened, and lubricating oil is injected into them. Then, the positioning plate 9, locking rod 10, and spring 11 are installed in the predetermined positions through the positioning hole 31 and the housing hole 32. First, the external hydraulic system is connected to the positioning plate 9, and the locking rod 10 is pushed by the hydraulic cylinder to resist the self-driving force of the spring 11 and press against the tool holder clamping table 7. Then, the drive shaft 6 installed in the tool holder body 5 is connected to the external motor drive end through a coupling. The external motor is started, and the hydraulic cylinder is closed, causing the locking rod 10 to reset due to the self-driving force of the spring 11. The external motor drives the drive shaft 6 to rotate, and the first transmission bearing 12 and the second transmission bearing 30 sleeved on the drive shaft 6 reduce the rotation of the drive shaft. The driving shaft 6 transmits driving force to the driven synchronous pulley 24, which is sleeved on the driven shaft 16, through the main synchronous pulley 13 and belt 14. The driven synchronous pulley 24 transmits driving force to the driven shaft 16. The third transmission bearing 19 and fourth transmission bearing 18, which are sleeved on the upper end of the driven shaft 16, reduce the rotational friction of the driven shaft 16. The worm gear 17, which is sleeved on the driven shaft 16, transmits the driving force on the driven shaft 16 to the rotating shaft 26 through the worm gear 21, which is sleeved on the upper end of the rotating shaft 26. 26. The fifth transmission bearing 20, the sixth transmission bearing 27, the seventh transmission bearing 28 and the eighth transmission bearing 29 sleeved on the rotating shaft 26 will reduce the rotational friction of the rotating shaft 26. The rotating shaft 26 transmits the driving force to the tool holder clamping table 7, which rotates to change the tool 8. After the tool 8 is changed, the external motor reverses, causing the drive shaft 6 to reverse. Through internal transmission, the tool holder clamping table 7 is reset. Then, the external hydraulic cylinder is activated to push the locking rod 10 to abut against the tool holder clamping table 7.

[0025] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A differential gear tool holder, comprising a housing (1), characterized in that: The front and lower ends of the outer shell (1) are respectively equipped with a tool holder body (5) and a tool holder lower bearing seat (23), and a positioning plate (9) is installed on one side of the outer shell (1); the upper end and the rear end of the outer shell (1) are respectively equipped with a first shell (2) and a second shell (4), and a positioning hole (31) and a shell hole (32) are respectively opened at one end and the rear end of the outer shell (1). A fourth shell (15) is installed at the rear end of the shell hole (32), and a third shell (3) is installed at the rear end of the bottom surface of the tool holder lower bearing seat (23).

2. The differential gear tool holder according to claim 1, characterized in that: The front end of the tool holder body (5) is rotatably connected to the drive shaft (6), the rear end of the drive shaft (6) is placed inside the outer shell (1), and the drive shaft (6) is sequentially sleeved with the first transmission bearing (12), the main synchronous pulley (13) and the second transmission bearing (30) from front to back. The second transmission bearing (30) is sleeved on the front end of the fourth housing (15).

3. A differential gear tool holder according to claim 1, characterized in that: A driven shaft (16) is installed inside the outer casing (1). The driven shaft (16) is sequentially fitted with a driven synchronous pulley (24), a third transmission bearing (19), a worm gear (17), and a fourth transmission bearing (18) from front to back. The fourth transmission bearing (18) is fitted onto the front end of the second housing (4). A belt (14) is meshed between the driven synchronous pulley (24) and the main synchronous pulley (13).

4. A differential gear tool holder according to claim 1, characterized in that: A rotating shaft (26) is installed between the first housing (2) and the third housing (3). The rotating shaft (26) can be divided into an upper drive shaft end and a lower drive shaft end. The upper drive shaft end is located inside the outer shell (1), and the lower drive shaft end is located inside the lower bearing seat (23) of the tool holder.

5. A differential gear tool holder according to claim 4, characterized in that: The upper drive shaft end of the rotating shaft (26) is sequentially fitted with a fifth drive bearing (20), a turbine (21), a sixth drive bearing (27), and an upper turntable (22) from top to bottom. The lower drive shaft end of the rotating shaft (26) is sequentially fitted with a lower turntable (25), a seventh drive bearing (28), and an eighth drive bearing (29) from top to bottom. The eighth drive bearing (29) is installed in the lower bearing seat (23) of the tool holder. A tool holder clamping platform (7) is installed in the close end of the upper turntable (22) and the lower turntable (25). Multiple equidistant fixing slots are opened at the upper and lower ends of the tool holder clamping platform (7). A positioning slot is opened on one side of the tool holder clamping platform (7). The positioning slot is concentric with the positioning hole (31) of the outer shell (1). A tool (8) is installed in the fixing slot.

6. A differential gear tool holder according to claim 1, characterized in that: A locking rod (10) is installed inside the positioning plate (9). The front end of the locking rod (10) is installed in the positioning hole (31), and a spring (11) is sleeved on the locking rod (10). The other end of the spring (11) abuts against one side of the inner cavity of the positioning plate (9).

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