Gear boring equipment for gear box production and machining

Abstract

The invention provides gear boring equipment for gear box production and machining, and relates to the technical field of gear box boring, the gear boring equipment comprises a boring head structure applied to the equipment, the boring head structure comprises a boring arm and a driving shaft, an adapter is arranged at the end, close to the driving shaft, of the boring arm, and a limiting trapezoidal block is integrally formed on the surface of the adapter; a supporting base is integrally formed at the end, close to the boring arm, of the driving shaft, a boring tool bit is arranged in the end, away from the driving shaft, of the boring arm, and a bipolar control structure is arranged between the driving shaft and the boring arm. The technical key points are as follows: after the boring tool bit is controlled to extend out of the inside of the boring arm to a limit position by utilizing a bipolar control structure, the switching seat is continuously controlled to move towards the moving direction of the boring tool bit relative to the supporting seat, so that the boring arm and the driving shaft are changed from a coaxial state to a non-coaxial state; the boring length of the boring tool bit in the gearbox is increased, the boring space is enlarged, and the application range is wide.

Description

Technical Field

[0001] This invention relates to the field of gearbox boring technology, specifically a gear boring machine for gearbox production and processing. Background Technology

[0002] Boring is a cutting process that enlarges the internal diameter of holes or other circular contours using a cutting tool. Its application ranges from semi-roughing to finishing, and the cutting tool used is typically a single-edged boring bar. On CNC machine tools, we often use non-standard tools (eccentric boring bars, rotary inserts, and dedicated reverse boring tools) to perform reverse boring using CNC machining programs. Boring uses a rotating single-edged boring bar to enlarge a pre-drilled hole on the workpiece to a certain size, achieving the required precision and surface roughness. Boring is generally performed on boring machines, machining centers, and combination machine tools, mainly used for machining cylindrical holes, threaded holes, internal grooves, and end faces on workpieces such as housings, brackets, and machine bases. When using special attachments, it can also machine internal and external spherical surfaces, tapered holes, etc.

[0003] During boring, the workpiece is mounted on the machine tool table or machine tool fixture, and the boring bar is clamped on the boring bar and driven to rotate by the spindle. When a boring jig is used, the boring bar is floatingly connected to the spindle, and the machining accuracy depends on the accuracy of the boring jig; when a boring jig is not used, the boring bar is rigidly connected to the spindle, and the machining accuracy depends on the accuracy of the machine tool.

[0004] Gearboxes have a wide range of applications and possess the following functions: 1. Acceleration and deceleration (e.g., a transmission gearbox); 2. Changing the direction of transmission (e.g., using two sector gears to transmit force perpendicularly to another rotating shaft); 3. Changing the torque (under the same power conditions, the faster the gear rotates, the smaller the torque on the shaft, and vice versa); 4. Clutch function (by separating two originally meshed gears, the engine and load can be separated. For example, a brake clutch); 5. Power distribution (e.g., using one engine to drive multiple driven shafts through the gearbox main shaft, thereby enabling one engine to drive multiple loads).

[0005] During the production process of gearboxes, boring equipment is often used to create cylindrical slots inside the gearbox for the installation and operation of gears and related components.

[0006] The patent document with announcement number CN116765448B describes a gear boring machine that uses multiple boring tools arranged in a ring array to simultaneously bore the boring part of the gear on the same pitch circle, thereby effectively improving the efficiency of gear boring. At the same time, by utilizing the relative movement of the wedge structure, the distance between each boring tool and the rotation axis can be adjusted synchronously, thereby adjusting the boring size when the tool is retracted and then re-entered, realizing the boring of the gear bore diameter from small to large. Meanwhile, by setting an external limiting structure, when the sleeve can rotate relative to the cylindrical body, the polygonal cavity cannot rotate because it is in a fixed spatial state. At this time, the third triangular block located in the wedge-shaped structure will move away from the center line of the cylindrical body, thereby increasing the turning size of the boring tool and achieving the turning size requirement required for boring from small to large. When the sleeve rotates in the opposite direction, it cannot rotate due to the limiting of the first and second triangular blocks, thus realizing the adjustment function of the boring tool during rotation.

[0007] However, in the process of implementing the above technical solution, the following technical problems were found: This gear boring machine uses multiple boring tools arranged in a ring array to simultaneously bore the gear's bore area on the same pitch circle. Utilizing the relative movement of the wedge structure, the distance between each boring tool and the rotation axis can be adjusted synchronously, thereby adjusting the boreable dimensions after each tool retraction and re-entry. However, for gearboxes, there may be significant differences in boring radii between the spaces requiring boring. Although this machine can synchronously adjust the distance between each boring tool and the rotation axis, in practical applications, the adjustable distance is limited, making it difficult to achieve boring work in multiple spaces with large radius differences within the gearbox, thus imposing considerable limitations. Summary of the Invention

[0008] To overcome the shortcomings of existing gear boring equipment, which, although capable of simultaneously adjusting the distance between each boring tool and the rotation axis, suffer from limitations in practical applications due to the potential for significant differences in boring radii between spaces requiring boring within the gearbox, this application provides a gear boring device for gearbox manufacturing. This device utilizes a hydraulic push rod to push a first pressure plate, and then a tension spring to drive a second pressure plate to apply pressure to a long rod, causing the long rod to... The rod, with the help of the first and second limiting plates, pushes the U-shaped frame to apply pressure to the connecting rod, causing the second drive plate to apply pressure to the trapezoidal plate through the corner groove. After the boring head extends from the inside of the boring arm to its limit position, the first pressure plate continues to slide outside the long rod. The tension spring causes the first pressure plate to apply pressure to the first drive plate, which can cause the first drive plate to push the track bar to drive the adapter seat to move relative to the support seat in the direction of the boring head movement. This realizes the transformation of the boring arm and the drive shaft from coaxial to non-coaxial, which is beneficial to increase the boring length of the boring head inside the gearbox and expand the boring space.

[0009] The technical solution adopted by the embodiments of this application to solve its technical problem is: A gear boring machine for gearbox manufacturing includes a boring head structure applied to the machine, comprising a boring arm and a drive shaft. The end of the drive shaft away from the boring arm is connected to a motor on the boring machine. An adapter seat is provided at the end of the boring arm near the drive shaft. A limiting trapezoidal block is integrally formed on the surface of the adapter seat. A support seat is integrally formed at the end of the drive shaft near the boring arm. A boring head is provided inside the end of the boring arm away from the drive shaft. A bipolar control structure is provided between the drive shaft and the boring arm. The bipolar control structure includes a second drive plate. A connecting rod is threadedly connected to the bottom of the second drive plate near the drive shaft. A U-shaped frame is fixed to one end of the connecting rod by a nut. A long rod is provided inside the U-shaped frame. A second pressure plate is threadedly connected to one end of the long rod. A first pressure plate is provided on one side of the top of the second pressure plate. A tension spring is provided between the tops of the first and second pressure plates. A hydraulic push rod is assembled and connected to the bottom of the first pressure plate facing the second pressure plate. The first drive plate is slidably connected to the outside. The boring head is driven by a bipolar control structure between the drive shaft and the boring arm. It first extends out of the boring arm from the inside of the boring arm in a direction perpendicular to the axis of the boring arm. Then, the bipolar control structure drives the adapter to move outside the limiting trapezoidal block in the direction of the boring head's movement.

[0010] In one possible implementation, the boring arm has a tool head limiting groove and a tool head receiving groove inside the end away from the drive shaft. A trapezoidal plate is integrally formed on one side of the top of the boring tool head. A corner groove is formed inside the bottom of the second drive plate near one corner of the boring tool head. The cross-section of the corner groove is an isosceles right triangle. The thickness of the tool head limiting groove is greater than the thickness of the tool head receiving groove. The inclined surface of the trapezoidal plate is adapted to the top inner wall of the corner groove. The boring tool head is slidably connected inside the tool head limiting groove. The second drive plate is slidably connected to the outside of the trapezoidal plate through the corner groove.

[0011] In one possible implementation, the second drive plate has a strip groove parallel to the inclined surface of the trapezoidal plate inside, and a limit rod is pin-connected to the bottom of the trapezoidal plate at one corner away from the boring head; the inside of the strip groove is connected to the inside of the corner groove, and the limit rod is slidably connected inside the strip groove.

[0012] In one possible implementation, a guide rod is provided at the top of the long rod on one side of the U-shaped frame, and a first limiting plate and a second limiting plate are provided at the end of the guide rod and the long rod near the U-shaped frame; the first limiting plate and the second limiting plate are respectively located on both sides of the U-shaped frame, and the guide rod and the long rod are both located at the top of the plane where the connecting rod is located.

[0013] In one possible implementation, a long rod is provided on the inner side of the bottom of the guide rod, a track groove is provided on the bottom of the first drive plate, and a spring is sleeved to the outside of the guide rod; the first drive plate is slidably connected to the outside of the track bar through the track groove, and the spring is supported between the first drive plate and the second limiting plate on the guide rod.

[0014] In one possible implementation, the boring arm has an integrally formed base plate at one end near the drive shaft, a first movable slot is provided on the top of the boring arm at the end near the drive shaft, and a second movable slot is provided on the top of the support base; the base plate is assembled to the surface of the support base away from the track bar, and the U-shaped frame is movably connected inside the second movable slot and the first movable slot.

[0015] In one possible implementation, a receiving groove is provided at the bottom of the drive shaft near the boring arm end, and limiting ribs are integrally formed on both inner walls of the receiving groove. Limiting grooves are provided on both surfaces of the first drive plate. The limiting ribs are adapted to be connected inside the limiting grooves, and the first drive plate is slidably connected between the two limiting ribs through the two limiting grooves.

[0016] In one possible implementation, hooks are welded to the top surfaces of the long rod and the second pressure plate facing each other, and the two ends of the tension spring are respectively sleeved onto the outside of the two hooks.

[0017] In one possible implementation, a back plate is welded to the inner wall of the receiving groove at the end away from the boring arm, and the end of the hydraulic push rod away from the first pressure plate is fitted to the surface of the back plate.

[0018] In one possible implementation, the inclination of the track groove is the same as the inclination direction and angle of the inclined surface on the trapezoidal plate. The first pressure plate is pushed by a hydraulic push rod, and the second pressure plate is driven by a tension spring to first apply pressure to the long rod. The long rod pushes the U-shaped frame to apply pressure to the connecting rod with the first and second limiting plates on it. The second drive plate applies pressure to the trapezoidal plate through the corner groove, so that the boring head extends out from the inside of the boring arm. Then the tension spring is stretched so that the first pressure plate continues to apply pressure to the first drive plate, so that the first drive plate pushes the track bar to drive the adapter seat to move relative to the support seat in the direction of the boring head.

[0019] The beneficial effects of this application are as follows: Firstly, in this solution, the first pressure plate is controlled to move towards the boring arm by a hydraulic push rod. The second pressure plate is driven by a tension spring to apply pressure to the long rod. The long rod pushes the U-shaped frame to apply pressure to the connecting rod with the help of the first and second limiting plates. When the second drive plate applies pressure to the trapezoidal plate through the corner groove, the inclined inner wall of the corner groove applies pressure to the inclined surface on the trapezoidal plate. The trapezoidal plate drives the boring head to move inside the tool head limiting groove inside the tool head receiving groove, so that the boring edge on the boring head extends out from inside the boring arm. When the boring equipment works and drives the drive shaft to rotate at one end connected to the motor on the boring equipment, the boring head can be driven by the drive shaft and the boring arm to process spaces of different diameters inside the gearbox to be processed. Secondly, in this solution, a hydraulic push rod is used to push the first pressure plate, and a tension spring is used to drive the second pressure plate to apply pressure to the long rod. The long rod, with the help of the first and second limiting plates, pushes the U-shaped frame to apply pressure to the connecting rod. The second drive plate applies pressure to the trapezoidal plate through the corner groove. After the boring head extends from the inside of the boring arm to the limit position, the first pressure plate continues to slide on the outside of the long rod. The tension spring is stretched to make the first pressure plate apply pressure to the first drive plate. This allows the first drive plate to push the track bar to drive the adapter seat to move relative to the support seat in the direction of the boring head. This realizes the change of the boring arm and the drive shaft from coaxial to non-coaxial, which is beneficial to increase the length of the boring head boring inside the gearbox and expand the boring space. Thirdly, in this solution, by utilizing a bipolar control structure to operate between the drive shaft and the boring arm, the second drive plate can apply pressure to the trapezoidal plate, causing the boring head to extend from the inside of the head limiting groove. The first drive plate can also apply pressure to the track strip on the adapter, causing the adapter to drive the boring arm to move in the direction of the boring head. This facilitates the bipolar control of the boring head and the adapter by the same control component, resulting in better overall linkage and simplifying the control structure. Attached Figure Description

[0020] Figure 1 This is one of the structural schematic diagrams of the drive shaft and boring arm of a gear boring machine for gearbox manufacturing according to the present invention; Figure 2 This is a second schematic diagram of the drive shaft and boring arm of a gear boring machine for gearbox production and processing according to the present invention; Figure 3 This is a schematic diagram of the boring arm of a gear boring machine for gearbox manufacturing and processing according to the present invention; Figure 4 This is a cross-sectional view of the second drive plate of a gear boring machine for gearbox manufacturing according to the present invention; Figure 5 This is a schematic diagram of the structure of a gear boring machine for gearbox production and processing according to the present invention, in the state of the U-shaped frame and support seat being disconnected; Figure 6 This is a cross-sectional view of a gear boring machine support base for gearbox manufacturing according to the present invention; Figure 7 This is a schematic diagram of the structure of a gear boring equipment support base for gearbox manufacturing according to the present invention; Figure 8 This is a cross-sectional view of the boring arm of a gear boring machine for gearbox manufacturing and processing according to the present invention; Figure 9 This is a cross-sectional view of the drive shaft of a gear boring machine for gearbox manufacturing according to the present invention; Figure 10 This is a schematic diagram of the working state of a gear boring machine for gearbox production and processing according to the present invention.

[0021] Reference numerals: 1. Drive shaft; 2. Support base; 3. Adapter base; 4. Boring arm; 5. Boring head; 6. Head storage slot; 7. Limiting trapezoidal block; 8. First drive plate; 9. Back plate; 10. Hydraulic push rod; 11. Seat plate; 12. First movable slot; 13. Nut; 14. Connecting rod; 15. Second drive plate; 16. Trapezoidal plate; 17. Limiting rod; 18. Corner groove; 19. Strip 20. Second movable slot; 21. First limiting plate; 22. Second limiting plate; 23. U-shaped frame; 24. Spring; 25. Guide short rod; 26. Long rod; 27. Limiting rib; 28. Limiting strip groove; 29. ​​First pressure plate; 30. Second pressure plate; 31. Track groove; 32. Storage strip groove; 33. Tension spring; 34. Hook; 35. Cutter head limiting groove; 36. Track strip. Detailed Implementation

[0022] The technical solution in this application embodiment is to solve the problems mentioned in the background art, and the overall idea is as follows: Example 1: This embodiment describes the specific structure of a gear boring machine used in gearbox manufacturing. See details below. Figures 1-9 As shown, the device includes a boring head structure, which includes a boring arm 4 and a drive shaft 1. A transition seat 3 is provided at one end of the boring arm 4 near the drive shaft 1. A limit trapezoidal block 7 is integrally formed on the surface of the transition seat 3. A support seat 2 is integrally formed at one end of the drive shaft 1 near the boring arm 4. A boring head 5 is provided inside the end of the boring arm 4 away from the drive shaft 1. A bipolar control structure is provided between the drive shaft 1 and the boring arm 4. The bipolar control structure includes a second drive plate 15. A connecting rod 14 is threadedly connected to the bottom of the second drive plate 15 near the drive shaft 1. A U-shaped frame 23 is assembled and fixed to one end of the connecting rod 14 by a nut 13. A long rod 26 is provided inside the U-shaped frame 23. A second pressure plate 30 is threadedly connected to one end of the long rod 26. A first pressure plate 29 is provided on one side of the top of the second pressure plate 30. A tension spring 33 is provided between the top of the first pressure plate 29 and the second pressure plate 30. A hydraulic push rod 10 is assembled and connected to the bottom of the first pressure plate 29 facing the second pressure plate 30. A first drive plate 8 is slidably connected to the outside of the 26. The boring arm 4 has a tool head limiting groove 35 and a tool head storage groove 6 inside the end away from the drive shaft 1. A trapezoidal plate 16 is integrally formed on one side of the top of the boring tool head 5. A corner groove 18 is formed inside the bottom of the second drive plate 15 near the corner of one side of the boring tool head 5. A guide rod 25 is provided on the top of the long rod 26 on one side of the U-shaped frame 23. A first limiting plate 21 and a second limiting plate 22 are provided on the end of the guide rod 25 and the long rod 26 near the U-shaped frame 23. The first limiting plate 21 and the second limiting plate 22 are located on both sides of the U-shaped frame 23, and the guide short rod 25 and the long rod 26 are located at the top of the plane where the connecting rod 14 is located. When the hydraulic push rod 10 is working, the first pressure plate 29 is pushed by the hydraulic push rod 10, and the second pressure plate 30 is driven by the tension spring 33 to first apply pressure to the long rod 26, so that the long rod 26 pushes the U-shaped frame 23 to apply pressure to the connecting rod 14 with the help of the first limiting plate 21 and the second limiting plate 22 on it, so that the second drive plate 15 applies pressure to the trapezoidal plate 16 through the corner groove 18, so that the boring head 5 extends out from the inside of the boring arm 4, which is conducive to boring work inside the gearbox; Meanwhile, the end of the drive shaft 1 away from the boring arm 4 is connected to the motor on the boring equipment. When the boring equipment is working, the boring head 5 can be driven by the drive shaft 1 and the boring arm 4 to process the target space inside the gearbox to be processed. In addition, the overall length of the boring head 5 must be less than the smallest diameter in the boring space inside the gearbox, and the boring head 5 is allowed to protrude from the inside of the head limiting groove 35 to the surface of the boring arm 4; Secondly, in order to ensure that the trapezoidal plate 16 drives the boring head 5 to move stably inside the head limiting groove 35, such as Figure 1 , Figure 2 and Figure 8As shown, the cross section of the corner groove 18 is an isosceles right triangle. By making the thickness of the tool head limiting groove 35 greater than the thickness of the tool head receiving groove 6, the inclined surface of the trapezoidal plate 16 is adapted to the top inner wall of the corner groove 18. The boring tool head 5 is slidably connected inside the tool head limiting groove 35, while the second drive plate 15 is slidably connected to the outside of the trapezoidal plate 16 through the corner groove 18. With the help of the inclined inner wall of the corner groove 18 and the top inclined surface of the trapezoidal plate 16, when the second drive plate 15 moves toward the boring tool head 5, it can push the trapezoidal plate 16 to the bottom, thereby driving the boring tool head 5 to extend out from inside the tool head limiting groove 35. Furthermore, to prevent the trapezoidal plate 16 from disengaging from the second drive plate 15, and to ensure that the boring head 5 remains in a fixed position within the head limiting groove 35 when the second drive plate 15 is not moving, such as... Figure 4 and Figure 8 As shown, the interior of the second drive plate 15 has a strip groove 19 parallel to the inclined surface of the trapezoidal plate 16. The bottom of the trapezoidal plate 16 is connected to a limit rod 17 by a pin at one corner away from the boring head 5. By connecting the interior of the strip groove 19 with the interior of the corner groove 18, and the limit rod 17 is slidably connected to the interior of the strip groove 19, the second drive plate 15 and the trapezoidal plate 16 can maintain interaction. When the second drive plate 15 is stationary, the boring head 5 cannot move inside the head limit groove 35.

[0023] The above design utilizes a hydraulic push rod 10 to control the movement of the first pressure plate 29 toward the boring arm 4. A tension spring 33 (using a high-efficiency spring, similar to those used in motorcycle shock absorbers) drives the second pressure plate 30 to first apply pressure to the long rod 26. The long rod 26, with the aid of the first and second limiting plates 21 and 22, pushes the U-shaped frame 23 to apply pressure to the connecting rod 14. When the second drive plate 15 applies pressure to the trapezoidal plate 16 through the corner groove 18, the inclined inner wall of the corner groove 18 applies pressure to the inclined surface of the trapezoidal plate 16, causing the trapezoidal plate 16 to drive the boring cutter head 5 within the cutter head receiving groove 6 and into the cutter head limiting groove 3. The internal movement of 5 (at this time, the limit rod 17 moves within the strip groove 19 to restrict the movement of the boring head 5 when the second drive plate 15 does not apply pressure to the trapezoidal plate 16, and when the second drive plate 15 is far away from the boring head 5, the limit rod 17 and the strip groove 19 can be used to make the boring head 5 return to the inside of the head limit groove 35), so that the boring edge on the boring head 5 extends out from the inside of the boring arm 4. When the boring equipment works and drives the drive shaft 1 to rotate at one end connected to the motor on the boring equipment, the boring head 5 can be driven by the drive shaft 1 and the boring arm 4 to process spaces of different diameters inside the gearbox to be processed. Example 2: Based on Example 1, this example describes the specific structure between the drive shaft 1 and the boring arm 4, such as... Figure 1, Figure 2 , Figure 5 , Figure 6 , Figure 7 , Figure 9 and Figure 10 As shown, a long rod 26 is provided on the inner side of the bottom of the guide rod 25, and a track groove 31 is provided on the bottom of the first drive plate 8. A spring 24 is sleeved on the outside of the guide rod 25. The inclination of the track groove 31 is the same as the inclination direction and inclination angle of the inclined surface on the trapezoidal plate 16. The boring arm 4 has a seat plate 11 integrally formed at one end near the drive shaft 1. The top of the boring arm 4 near the drive shaft 1 is provided with a first movable slot 12, and the top of the support seat 2 is provided with a second movable slot 20. The seat plate 11 is assembled to the surface of the support seat 2 away from the track bar 36. The U-shaped frame 23 is movably connected to the inside of the second movable slot 20 and the first movable slot 12. Hooks 34 are welded to the surfaces of the long rod 26 and the second pressure plate 30 facing each other. The two ends of the tension spring 33 are respectively sleeved to the outside of the two hooks 34. A back plate 9 is welded to the inner wall of the receiving groove 32 away from the boring arm 4. The end of the hydraulic push rod 10 away from the first pressure plate 29 is assembled to the surface of the back plate 9. The first drive plate 8 is slidably connected to the outside of the track bar 36 via the track groove 31. The spring 24 is supported between the first drive plate 8 and the second limiting plate 22 on the guide rod 25. When the first pressure plate 29 is pushed by the hydraulic push rod 10, the second pressure plate 30 is driven by the tension spring 33 to first apply pressure to the long rod 26. The long rod 26 pushes the U-shaped frame 23 to apply pressure to the connecting rod 14 with the help of the first limiting plate 21 and the second limiting plate 22. The second drive plate 15 applies pressure to the trapezoidal plate 16 through the corner groove 18. After the boring head 5 extends from the inside of the boring arm 4 to the limit position, the first pressure plate 29... 9 continues to slide outside the long rod 26, stretching the tension spring 33 to make the first pressure plate 29 press against the first drive plate 8, which can make the first drive plate 8 push the track bar 36 to drive the adapter 3 to move relative to the support 2 in the direction of the boring head 5, realizing the state of the boring arm 4 and the drive shaft 1 changing from coaxial to different axes, which makes it easier to realize that the boring head 5 is pushed by the bipolar control structure between the drive shaft 1 and the boring arm 4. First, it extends out from the inside of the boring arm 4 in a direction perpendicular to the axis of the boring arm 4, and then the bipolar control structure pushes the adapter 3 to move outside the limiting trapezoidal block 7 in the direction of the boring head 5. In this state, if the drive shaft 1 and the boring arm 4 are coaxial, and the boring head 5 extends from the inside of the head limiting groove 35, the boring space radius r can be obtained. When the drive shaft 1 and the boring arm 4 are not coaxial, the boring space radius R can be obtained (radius R is greater than radius r, such as...). Figure 10As shown in the figure, this is beneficial for increasing the length of the boring head 5 inside the gearbox and expanding the boring space; Secondly, to prevent the first drive plate 8 from moving away from the top inner wall of the storage groove 32 inside the storage groove 32, such as Figure 6 and Figure 7 As shown, a storage groove 32 is provided at the bottom of the drive shaft 1 near the boring arm 4. Limiting ribs 27 are integrally formed on both sides of the inner wall of the storage groove 32. Limiting grooves 28 are provided on both sides of the first drive plate 8. The four limiting ribs 27 are adapted to be connected inside the limiting grooves 28, so that the first drive plate 8 can be slidably connected between the two limiting ribs 27 through the two limiting grooves 28. This facilitates the first drive plate 8 to move in a fixed direction and push the U-shaped frame 23 to move on the long rod 26. The first drive plate 8 is used to position the long rod 26.

[0024] The above design utilizes a hydraulic push rod 10 to push a first pressure plate 29, and a tension spring 33 to drive a second pressure plate 30 to apply pressure to a long rod 26. The long rod 26, with the help of a first limiting plate 21 and a second limiting plate 22, pushes a U-shaped frame 23 to apply pressure to a connecting rod 14. This causes the second drive plate 15 to apply pressure to a trapezoidal plate 16 through a corner groove 18. After the boring head 5 extends from the inside of the boring arm 4 to its limit position, the first pressure plate 29 continues to slide outside the long rod 26. The tension spring 33 is stretched so that the first pressure plate 29 applies pressure to the first drive plate 8. This allows the first drive plate 8 to push the track bar 36, causing the adapter 3 to move relative to the support 2 in the direction of the boring head 5. This achieves the change of the boring arm 4 and the drive shaft 1 from coaxial to non-coaxial, which is beneficial for increasing the boring length of the boring head 5 inside the gearbox and expanding the boring space.

[0025] It is worth noting that the control of the hydraulic push rod 10 needs to be based on a control component that is separate from the drive shaft 1, such as a power supply plug that can be separated from each other (electric push rods can also adopt this method). This is not the focus of this application and is relatively easy to implement, as long as it does not interfere with the rotation of the drive shaft 1.

[0026] Finally, it should be noted that the above embodiments are merely examples for clearly illustrating the present invention and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations. However, obvious variations or modifications derived therefrom are still within the scope of protection of this invention.

Claims

1. A gear boring machine for gearbox manufacturing, comprising a boring head structure applied to the machine, characterized in that, include: Boring arm (4); The drive shaft (1) has one end away from the boring arm (4) connected to the motor on the boring machine; The boring arm (4) is provided with an adapter (3) at one end near the drive shaft (1). A limit trapezoidal block (7) is integrally formed on the surface of the adapter (3). A support seat (2) is integrally formed at one end of the drive shaft (1) near the boring arm (4). A boring head (5) is provided inside the end of the boring arm (4) away from the drive shaft (1). A bipolar control structure is provided between the drive shaft (1) and the boring arm (4). The bipolar control structure includes a second drive plate (15). The bottom of the second drive plate (15) near the drive shaft (1) is threadedly connected to a connecting rod (14). One end of the connecting rod (14) is fixed with a U-shaped frame (23) by a nut (13). A long rod (26) is provided inside the U-shaped frame (23). One end of the long rod (26) is threadedly connected to a second pressure plate (30). A first pressure plate (29) is provided on one side of the top of the second pressure plate (30). A tension spring (33) is provided between the top of the first pressure plate (29) and the top of the second pressure plate (30). A hydraulic push rod (10) is assembled and connected to the bottom of the first pressure plate (29) facing the second pressure plate (30). The first drive plate (8) is slidably connected to the outside of the (26). The boring head (5) is driven by the bipolar control structure between the drive shaft (1) and the boring arm (4). It first extends out of the boring arm (4) in a direction perpendicular to the axis of the boring arm (4). Then, the bipolar control structure drives the adapter (3) to move outside the limiting trapezoidal block (7) in the direction of the boring head (5).

2. The gear boring equipment for gearbox manufacturing as described in claim 1, characterized in that: The boring arm (4) has a cutting head limiting groove (35) and a cutting head storage groove (6) inside the end away from the drive shaft (1). A trapezoidal plate (16) is integrally formed on one side of the top of the boring head (5). A corner groove (18) is formed inside the bottom of the second drive plate (15) near the corner of the side of the boring head (5). The corner groove (18) has an isosceles right triangle cross section. The thickness of the tool head limiting groove (35) is greater than the thickness of the tool head receiving groove (6). The inclined surface of the trapezoidal plate (16) is adapted to the top inner wall of the corner groove (18). The boring tool head (5) is slidably connected inside the tool head limiting groove (35). The second drive plate (15) is slidably connected to the outside of the trapezoidal plate (16) through the corner groove (18).

3. The gear boring equipment for gearbox manufacturing as described in claim 2, characterized in that: The second drive plate (15) has a strip groove (19) parallel to the inclined surface of the trapezoidal plate (16) inside. The bottom of the trapezoidal plate (16) is connected to a limit rod (17) by a pin at one corner away from the boring head (5). The interior of the strip groove (19) is connected to the interior of the corner groove (18), and the limiting rod (17) is slidably connected to the interior of the strip groove (19).

4. The gear boring equipment for gearbox manufacturing as described in claim 1, characterized in that: The long rod (26) is provided with a guide rod (25) at the top of one side of the U-shaped frame (23). The guide rod (25) and the long rod (26) are both provided with a first limiting plate (21) and a second limiting plate (22) at the end near the U-shaped frame (23). The first limiting plate (21) and the second limiting plate (22) are located on both sides of the U-shaped frame (23), and the guide short rod (25) and the long rod (26) are both located at the top of the plane where the connecting rod (14) is located.

5. The gear boring equipment for gearbox manufacturing as described in claim 4, characterized in that: A long rod (26) is provided on the inner side of the bottom of the guide rod (25), and a track groove (31) is provided on the bottom of the first drive plate (8). A spring (24) is sleeved on the outside of the guide rod (25). The first drive plate (8) is slidably connected to the outside of the track bar (36) via the track groove (31), and the spring (24) is supported between the first drive plate (8) and the second limiting plate (22) on the guide rod (25).

6. The gear boring equipment for gearbox manufacturing as described in claim 5, characterized in that: The boring arm (4) has a base plate (11) integrally formed at one end near the drive shaft (1), and a first movable slot (12) is provided on the top of the boring arm (4) near the drive shaft (1), and a second movable slot (20) is provided on the top of the support base (2). The seat plate (11) is assembled to the surface of the support base (2) away from the track bar (36), and the U-shaped frame (23) is movably connected to the interior of the second movable slot (20) and the first movable slot (12).

7. The gear boring equipment for gearbox manufacturing as described in claim 1, characterized in that: The drive shaft (1) has a storage groove (32) at the bottom near the boring arm (4). The inner walls of both sides of the storage groove (32) are integrally formed with a limiting rib (27). The two sides of the first drive plate (8) have a limiting groove (28). The limiting rib (27) is adapted to be connected inside the limiting groove (28), and the first drive plate (8) is slidably connected between the two limiting ribs (27) through the two limiting grooves (28).

8. The gear boring equipment for gearbox manufacturing as described in claim 1, characterized in that: Hooks (34) are welded to the top surfaces of the long rod (26) and the second pressure plate (30), and the two ends of the tension spring (33) are respectively sleeved to the outside of the two hooks (34).

9. The gear boring equipment for gearbox manufacturing as described in claim 7, characterized in that: The inner wall of the receiving groove (32) away from the boring arm (4) is welded to a back plate (9), and the end of the hydraulic push rod (10) away from the first pressure plate (29) is assembled to the surface of the back plate (9).

10. The gear boring equipment for gearbox manufacturing as described in claim 5, characterized in that: The inclination of the track groove (31) is the same as the inclination direction and inclination angle of the inclined surface on the trapezoidal plate (16). The first pressure plate (29) is pushed by the hydraulic push rod (10), and the second pressure plate (30) is driven by the tension spring (33) to first apply pressure to the long rod (26), so that the long rod (26) pushes the U-shaped frame (23) to apply pressure to the connecting rod (14) with the help of the first limiting plate (21) and the second limiting plate (22) on it, so that the second drive plate (15) applies pressure to the trapezoidal plate (16) through the corner groove (18), so that the boring head (5) extends out from the inside of the boring arm (4); The rear tension spring (33) causes the first pressure plate (29) to continue to apply pressure to the first drive plate (8), causing the first drive plate (8) to push the track bar (36) to drive the adapter (3) to move relative to the support (2) in the direction of the boring head (5).

Images