Half-hole boring and reaming device

Abstract

A half-hole boring and reaming machining device comprises a mounting plate, a main shaft is rotationally connected to the mounting plate, a supporting shaft is connected to the bottom of the main shaft, an annular cavity is formed in the peripheral face of the supporting shaft, and the supporting shaft is sleeved with a spring sleeve; sealing rings A are arranged outside the supporting shaft on the upper side and the lower side of the annular cavity, the sealing rings A are fixedly arranged between the spring sleeve and the supporting shaft, an oil cavity is formed in the supporting shaft, the lower portion of the oil cavity is communicated with the lower end face of the supporting shaft, one side of the oil cavity is communicated with the annular cavity, and the side wall of the oil cavity is connected with an adjusting plunger in a threaded meshing mode; at least three honing knives in contact with the spring sleeve are arranged on the periphery of the spring sleeve, and the honing knives are rotationally connected with the mounting plate; the mounting plate is fixedly connected with a power device; the adjusting plunger, the oil cavity and the spring sleeve are arranged, obtaining is convenient, the manufacturing process is simplified, and complex spiral groove milling operation is avoided; and through cooperation of the adjusting plunger, the oil cavity and the spring sleeve, effective supporting can be provided for the honing knife, and the semi-hole machining precision is improved.

Description

Technical field:

[0001] The present application relates to the technical field of parts honing, and in particular to a half-hole boring and reaming device. Background technology:

[0002] With the continuous development of modern industry, various fields have higher and higher requirements for the precision of mechanical parts. In the machinery manufacturing industry, the performance and reliability of key components such as engines and hydraulic systems depend largely on the quality of the inner surface of the parts.

[0003] The invention patent with application number 202211664008.9 - a half-hole grinding device, including a transmission device, a plurality of grinding rod modules are arranged on the bottom surface of the transmission device, and an idler wheel module is sandwiched between the plurality of grinding rod modules for adjusting the relative distance between the grinding rod modules. The effect of the invention: ensuring dimensional stability and higher precision.

[0004] This patent proposes a technical solution, which ensures the processing accuracy during the half-hole honing process by setting an idler spiral groove on the idler and adjusting the diameter of the idler by the extrusion of the nut on the upper and lower parts of the idler. However, due to its special structure, the idler spiral groove requires certain technical requirements to achieve the ideal effect in the actual processing process, and deviations are prone to occur during the processing. Deviations will cause interference with the operation of the honing tool, thereby affecting the processing accuracy of the half hole and failing to meet the expected size requirements. Utility model content:

[0005] In order to solve the above technical problems, the utility model provides a half-hole boring and reaming device, and solves the technical problem that in the prior art, due to equipment deviation, the honing tool will be interfered during the honing process, thereby affecting the processing accuracy of the half hole. In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0006] A half-hole boring and reaming device, comprising:

[0007] Mounting plate;

[0008] A main shaft, the main shaft is connected to the mounting plate in a rotating structure;

[0009] A support shaft, the support shaft is connected to the bottom of the main shaft, and an annular cavity is formed on the outer peripheral surface of the support shaft;

[0010] A spring sleeve, the spring sleeve is arranged outside the support shaft;

[0011] The sealing ring A is arranged between the spring sleeve and the support shaft in a fixed structure, and the sealing ring A is located outside the support shaft at the upper and lower sides of the annular cavity;

[0012] An oil cavity is opened on the support shaft. The lower part of the oil cavity communicates with the lower end face of the support shaft, and one side of the oil cavity communicates with the annular cavity.

[0013] An adjusting plunger, which is connected to the side wall of the oil cavity in a threaded engagement manner.

[0014] Honing cutters. At least three honing cutters are arranged on the outer circumference of the spring sleeve and are in contact with the spring sleeve. The honing cutters are connected to the mounting plate in a rotational structure manner.

[0015] A power device for driving the honing cutters to rotate.

[0016] Furthermore, the driving device includes a servo motor, a sun gear shaft, a sun gear, and planetary gears. The sun gear shaft is arranged on the mounting plate in a rotational structure manner. One end of the sun gear shaft passes through the upper end face of the mounting plate and is connected to the servo motor. A sun gear is sleeved on the other end of the sun gear shaft. The sun gear is externally connected in a meshing manner with the same number of planetary gears as the honing cutters. The planetary gears are connected to the mounting plate in a rotational structure manner, and the planetary gears are fixedly connected to the honing cutters.

[0017] Furthermore, a fixing frame is arranged on one side of the mounting plate in a fixed structure manner.

[0018] Furthermore, the power device is a servo motor. The servo motor is connected to the fixing frame in a fixed structure manner, and the output shaft of the servo motor is fixedly connected to the sun gear shaft.

[0019] Furthermore, the main shaft includes an upper shaft and a lower shaft, and a universal joint is arranged between the upper shaft and the lower shaft.

[0020] Furthermore, a pressing plate with a central hole is horizontally arranged below the honing cutter.

[0021] Both sides of the pressing plate are connected with oil cylinders. The oil cylinders are connected to the fixing frame in a fixed structure manner, and the mounting plate is sleeved outside the oil cylinders.

[0022] Furthermore, the adjusting plunger includes a plunger body and a sealing ring B. The sealing ring B is sleeved on the plunger body and fits with the oil cavity.

[0023] The beneficial effects of the utility model are as follows:

[0024] 1. By setting the adjusting plunger, the oil cavity, and the spring sleeve, it is convenient to obtain, simplifies the manufacturing process, and avoids complex milling of spiral grooves. And through the cooperation of the adjusting plunger, the oil cavity, and the spring sleeve, effective support can be provided for the honing cutter, improving the accuracy of semi-hole machining.

[0025] 2. Through the setting of the universal joint, when there is a deviation in the installation of the main shaft, the universal joint can make fine adjustments with the force transmitted by the honing cutter, preventing the deviated main shaft from interfering with the operation of the honing cutter during the honing process, further ensuring the machining accuracy and ensuring that the dimensions meet the preset requirements. Description of the Drawings:

[0026] Figure 1 It is a schematic cross-sectional structure diagram of the present utility model.

[0027] Figure 2 is Figure 1 a partially enlarged structure diagram at position A in

[0028] In the figure:

[0029] 1. mounting plate, 2. fixing bracket, 3. support shaft, 4. spring sleeve, 5. main shaft, 51. upper shaft, 52. lower shaft, 6. seal ring A, 7. sun gear shaft, 8. sun gear, 9. planetary gear, 10. oil cavity, 11. adjusting plunger, 12. honing tool, 13. pressing plate, 14. annular cavity, 15. universal joint, 16. oil cylinder. Specific Embodiment:

[0030] To make the purpose, technical solution and advantages of the implementation of the present utility model clearer, the present utility model will now be further described in detail with reference to the drawings and the following embodiments, so that the public can better master the implementation method of the present utility model. The specific implementation scheme of the present utility model is as follows:

[0031] A semi-hole boring and reaming processing device includes a mounting plate 1. The mounting plate 1 is connected with a main shaft 5 in a rotational structure manner. The bottom of the main shaft 5 is connected with a support shaft 3. An annular cavity 14 is formed on the outer peripheral surface of the support shaft 3. A spring sleeve 4 is sleeved outside the support shaft 3. Seal rings A6 are arranged on the outside of the support shaft 3 on both the upper and lower sides of the annular cavity 14. The seal rings A6 are arranged between the spring sleeve 4 and the support shaft 3 in a fixed structure manner. An oil cavity 10 is formed in the support shaft 3. The lower part of the oil cavity 10 is communicated with the lower end surface of the support shaft 3. One side of the oil cavity 10 is communicated with the annular cavity 14. The side wall of the oil cavity 10 is connected with an adjusting plunger by means of thread engagement. By adjusting the plunger, the pressure in the oil cavity 10 is changed, and a pressure difference is generated between the oil cavity 10 and the annular cavity 14, so that the oil liquid flows from the oil cavity 10 into the annular cavity 14. At least three honing tools 12 in contact with the spring sleeve 4 are arranged on the outer periphery of the spring sleeve 4. The honing tools 12 drive the spring sleeve 4 and the support shaft 3 to rotate through the friction force with the spring sleeve 4. The honing tools 12 are connected with the mounting plate 1 in a rotational structure manner to fix the drilling positions of the honing tools 12 and prevent the honing tools 12 from making a circular motion centered on the sun gear 8. A power device for driving the honing tools 12 to rotate.

[0032] Furthermore, by providing the adjusting plunger, the oil cavity 10 and the spring sleeve 4, it is convenient to obtain, simplifies the manufacturing process, and avoids complex milling spiral groove operations; and through the cooperation of the adjusting plunger, the oil cavity 10 and the spring sleeve 4, effective support can be provided for the honing tools 12, and the precision of semi-hole processing can be improved.

[0033] Specifically, the driving device includes a servo motor, a sun gear shaft 7, a sun gear 8 and a planetary gear 9. The sun gear shaft 7 is arranged on the mounting plate 1 in a rotating structure. One end of the sun gear shaft 7 passes through the upper end surface of the mounting plate 1 and is connected to the servo motor. The other end of the sun gear shaft 7 is provided with a sun gear 8. The sun gear 8 is meshingly connected to the outside of the sun gear 8 with the same number of planetary gears 9 as the honing tool 12. The planetary gears 9 are connected to the mounting plate 1 in a rotating structure, and the planetary gears 9 are fixedly connected to the honing tool 12. Through the arrangement of the sun gear shaft 7, the sun gear 8 and the planetary gears 9, multiple honing tools 12 can rotate synchronously, and the parts can be honed at the same speed at the same time, so that the parts are subjected to uniform force and the stability during the honing process is ensured. Moreover, multiple honing tools 12 work at the same time, so that the drilling work can be completed at one time, which greatly improves the work efficiency.

[0034] It should be noted that a fixing frame 2 is provided on one side of the mounting plate 1 in a fixed structure manner; the power device is a servo motor, the servo motor is connected to the fixing frame 2 in a fixed structure manner, and the output shaft of the servo motor is fixedly connected to the sun gear shaft 7 .

[0035] Furthermore, the main shaft 5 includes an upper shaft 51 and a lower shaft 52, and a universal joint 15 is arranged between the upper shaft 51 and the lower shaft 52; through the setting of the universal joint 15, when the installation of the main shaft 5 deviates, the universal joint 15 is fine-tuned according to the force transmitted by the honing tool 12 to prevent the deviated main shaft 5 from interfering with the operation of the honing tool 12 during the honing process, thereby further ensuring the processing accuracy and ensuring that the size meets the preset requirements.

[0036] It needs to be explained that a pressure plate 13 with a central hole is horizontally arranged below the honing tool 12; oil cylinders 16 are connected to both sides of the pressure plate 13, and the oil cylinder 16 is connected to the fixed frame 2 in a fixed structure. The mounting plate 1 is sleeved outside the oil cylinder 16, and a hole is opened in the center of the pressure plate 13 to allow the honing tool 12 to pass through, and the up and down movement of the pressure plate 13 is realized by the oil cylinder 16.

[0037] Furthermore, the regulating plunger includes a plunger body 11 and a sealing ring B. The sealing ring B is sleeved outside the plunger body 11 and fits with the oil chamber 10 to prevent the oil in the oil chamber 10 from leaking out.

[0038] The working principle and working process of the utility model are as follows:

[0039] The adjusting plunger is turned to move it upward along the oil chamber 10 , squeezing the oil in the oil chamber 10 and allowing the oil to enter the annular cavity 14 . Under the pressure of the gradually injected oil, the spring sleeve 4 begins to expand outward, thereby supporting the honing tool 12 .

[0040] Place the part on the pressure plate 13, start the oil cylinder 16, and the oil cylinder 16 drives the pressure plate 13 and the part to rise; at the same time, start the servo motor, and the servo motor drives the sun gear shaft 7, the sun gear 8, the planetary gear 9 and the honing tool 12 to rotate in sequence. The honing tool 12 drives the spring sleeve 4, the support shaft 3 and the main shaft 5 to rotate in sequence through the frictional force in contact with the spring sleeve 4.

[0041] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "front", "rear", "lower left", "upper right", "outer", "clockwise", "counterclockwise", etc. is the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the protection scope of the present invention. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. Although the present invention is described based on a limited number of embodiments, those skilled in the art in this technical field should understand that within the scope of the present invention thus described, other embodiments can be envisioned.

Claims

1. A semi-hole boring and reaming processing device, characterized in that Comprising: Mounting plate (1); Main shaft (5), the main shaft (5) is connected to the mounting plate (1) in a rotational structure manner; Support shaft (3), the support shaft (3) is connected to the bottom of the main shaft (5), and a ring-shaped cavity (14) is provided on the outer peripheral surface of the support shaft (3); Spring sleeve (4), the spring sleeve (4) is sleeved outside the support shaft (3); Sealing ring A (6), the sealing ring A (6) is arranged between the spring sleeve (4) and the support shaft (3) in a fixed structure manner, and the sealing ring A (6) is located outside the support shaft (3) on both the upper and lower sides of the ring-shaped cavity (14); Oil cavity (10) opened in the support shaft (3), the lower part of the oil cavity (10) communicates with the lower end surface of the support shaft (3), and one side of the oil cavity (10) is connected to the ring-shaped cavity (14); Adjusting plunger, the adjusting plunger is connected to the side wall of the oil cavity (10) by means of screw engagement; Honing tool (12), at least three honing tools (12) are arranged on the outer periphery of the spring sleeve (4) and are in contact with the spring sleeve (4), and the honing tool (12) is connected to the mounting plate (1) in a rotational structure manner; Power device for driving the honing tool (12) to rotate.

2. The semi-hole boring and reaming processing device according to claim 1, characterized in that: The driving device includes a servo motor, sun gear shaft (7), sun gear (8) and planetary gears (9). The sun gear shaft (7) is arranged on the mounting plate (1) in a rotational structure manner. One end of the sun gear shaft (7) passes through the upper end surface of the mounting plate (1) and is connected to the servo motor. A sun gear (8) is sleeved on the other end of the sun gear shaft (7). The sun gear (8) is externally connected in a meshing manner with the same number of planetary gears (9) as the honing tool (12). The planetary gears (9) are connected to the mounting plate (1) in a rotational structure manner, and the planetary gears (9) are fixedly connected to the honing tool (12).

3. The semi-hole boring and reaming processing device according to claim 2, characterized in that: A fixing frame (2) is arranged on one side of the mounting plate (1) in a fixed structure manner.

4. A semi-hole boring and reaming processing device according to claim 3, characterized in that: The power device is a servo motor. The servo motor is connected to the fixing frame (2) in a fixed structure manner, and the output shaft of the servo motor is fixedly connected to the sun gear shaft (7).

5. A semi-hole boring and reaming processing device according to claim 1, characterized in that: The main shaft (5) includes an upper shaft (51) and a lower shaft (52), and a universal joint (15) is arranged between the upper shaft (51) and the lower shaft (52).

6. The semi-hole boring and reaming processing device according to claim 1, characterized in that: A pressing plate (13) with a central hole is horizontally arranged below the honing tool (12); Both sides of the pressing plate (13) are connected with oil cylinders (16). The oil cylinders (16) are connected to the fixing frame (2) in a fixed structure manner, and the mounting plate (1) is sleeved outside the oil cylinders (16).

7. A semi-hole boring and reaming processing device according to claim 1, characterized in that: The adjusting plunger includes a plunger body (11) and a sealing ring B. The sealing ring B is sleeved outside the plunger body (11) and fits with the oil cavity (10).

Images