Power head with cutter capable of being dynamically adjusted on line and adjusting method

Abstract

The invention belongs to the technical field of machining, and particularly relates to a power head with a cutter capable of being dynamically adjusted online and an adjusting method. A power head with a cutter capable of being dynamically adjusted on line comprises a box body, a rear cover, a motor, a motor gear, a main gear and a main shaft, one end face of the main shaft is connected with an oil cylinder body, a piston is arranged in the oil cylinder body, the other end face of the main shaft is connected with a cutter holder in a sliding mode, the cutter is arranged on the outer side of the cutter holder, and the side, close to the main shaft, of the cutter holder is provided with an inclined face. One end of the cylinder rod makes contact with the inclined face, the other end of the cylinder rod penetrates through a piston in the oil cylinder body and extends out of the oil cylinder body, a multi-channel rotating connector and a distance measuring instrument are arranged on the rear cover, an external oil pipe is arranged on the multi-channel rotating connector, the multi-channel rotating connector is rotatably connected with a connecting rod and an internal oil pipe, and the connecting rod is connected with the main shaft. The extension amount of the piston and the connecting rod is controlled by controlling input of hydraulic oil in the hydraulic cylinder, online dynamic adjustment of the radial position of the cutter is achieved, complex machining requirements are met, and precision is high.

Description

Technical Field

[0001] The present invention belongs to the technical field of machining, and in particular relates to a power head with a tool capable of online dynamic adjustment and an adjustment method. Background Art

[0002] Currently, most turning power heads on the market use manual tool adjustment, which has the following defects: 1. Low efficiency: Manual tool adjustment requires the operator to have certain skills and experience, and the adjustment process is time-consuming, affecting production efficiency; 2. Limited accuracy: The accuracy of manual tool adjustment depends on the operator's experience and technical level. It is difficult to ensure that each adjustment can reach the optimal state, which may lead to unstable processing accuracy; 3. Unable to achieve automation: As the manufacturing industry develops towards automation and intelligence, the manual tool adjustment method cannot meet the automation requirements of modern production, limiting the intelligent upgrade of the production line; 4. High labor intensity: Frequent manual adjustments increase the labor intensity of the operator, which may cause operator fatigue, affect production safety and product quality, and manually adjusted tools can only process straight lines or planes, and cannot achieve complex curves such as curves and threads. Summary of the Invention

[0003] In response to the above problems, the purpose of the present invention is to provide a power head and adjustment method in which the tool can be dynamically adjusted online. By controlling the input of hydraulic oil in the hydraulic cylinder, the extension of the piston and connecting rod is pushed to achieve online dynamic adjustment of the radial position of the tool, thereby meeting various complex processing requirements, and having high precision, high efficiency, simple structure and easy maintenance.

[0004] The technical solution of the present invention is: a power head with a tool that can be dynamically adjusted online, including a box body, a motor is provided on the outside of the box body, and a motor gear is provided on the output end of the motor. The motor gear is rotatably connected to a main gear, and the main gear is rotatably connected to a main shaft. The main shaft is located in the middle position of the box body, one end of the main shaft is located inside the box body, and an end face of the main shaft is connected to an oil cylinder body, a piston is provided in the oil cylinder body, and the other end of the main shaft is located on the side face of one end of the box body close to the motor, and a slide groove is provided on the end face of the main shaft, and a tool holder is slidably connected to the slide groove, and a tool is provided on the outside of the tool holder, and the tool holder is close to the main shaft. An inclined surface is provided on one side of the main shaft, and a cylinder rod is provided in the main shaft. One end of the cylinder rod is in contact with the inclined surface on one side of the main shaft, and the other end passes through the piston in the cylinder body and extends out of the cylinder body. A detection mechanism is provided on the cylinder rod extending out of the cylinder body. A rear cover is provided on the end of the box body away from the main shaft, and a multi-channel rotary joint and a rangefinder are provided on the rear cover. The multi-channel rotary joint is provided with an external oil pipe at one end outside the box body, and the multi-channel rotary joint is rotatably connected with a connecting rod and an internal oil pipe at one end inside the box body. The connecting rod is connected to the main shaft, and the internal oil pipes are respectively connected to the AB ports of the cylinder body.

[0005] The detection mechanism includes a small detection disk and a large detection disk, which are respectively clamped with the cylinder rod. The small detection disk and the large detection disk are provided with a clamping ring at the connection between the cylinder rod. The diameter of the large detection disk is larger than the diameter of the small detection disk. The large detection disk is closer to the main shaft than the small detection disk. The distance between the large detection disk and the small detection disk is not less than the tool adjustment range.

[0006] The multi-channel rotary joint is fixedly connected to the rear cover by screws I, the rear cover is fixedly connected to the box body by screws II, and the cylinder body is fixedly connected to the main shaft by screws III.

[0007] Bearings are provided between the two ends of the main shaft and the box body, and a key is provided between the main shaft and the main gear.

[0008] A spring is provided inside the tool holder on one side close to the main shaft.

[0009] There is one or more cutting tools, and the multiple cutting tools are evenly distributed radially along the axis of the main shaft. The cutting tools are used for cutting blanks.

[0010] A method for online dynamic adjustment of a tool, using a power head with online dynamic adjustment of a tool as described above, comprises the following steps: S1. When in use, the motor drives the spindle to rotate, and drives the tool holder, cylinder body, cylinder rod, connecting rod and detection mechanism to rotate together; S2. When the tool needs to move, the hydraulic oil is controlled to enter the cylinder body from the external oil pipe through the multi-channel rotary joint. The hydraulic oil drives the piston to move and drives the cylinder rod to move horizontally. The cylinder rod pushes the inclined surface of the tool holder, causing the tool holder to move radially along the spindle end face. S3. Use the distance meter to measure the position of the detection mechanism, control the hydraulic oil volume of the external oil pipe, and then close the loop to control the cylinder rod position, so as to realize online dynamic adjustment of the tool position.

[0011] The technical effects of the present invention are: 1. The present invention controls the input of hydraulic oil in the hydraulic cylinder to promote the extension of the piston and connecting rod, thereby realizing online dynamic adjustment of the radial position of the tool without stopping the main shaft, meeting various complex processing requirements, and has high precision, high efficiency, simple structure and easy maintenance; 2. The hydraulic oil of the hydraulic cylinder of the present invention is connected to the hydraulic cylinder through a multi-channel rotary joint, and a detection disk for real-time position feedback is arranged on the hydraulic cylinder, thereby improving the tool adjustment accuracy.

[0012] The following is a further description with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of a power head with online dynamic adjustment of a tool according to the present invention.

[0014] Figure markings: 1-external oil pipe; 2-multi-channel rotary joint; 3-screw I; 4-small detection disk; 5-back cover; 6-distometer; 7-screw II; 8-housing; 9-internal oil pipe; 10-cylinder rod; 11-connecting rod; 12-large detection disk; 13-retaining ring; 14-cylinder body; 15-piston; 16-screw III; 17-bearing; 18-spindle; 19-motor gear; 20-main gear; 21-key; 22-motor; 23-spring; 24-tool; 25-tool holder; 26-blank. DETAILED DESCRIPTION Example 1

[0015] like Figure 1 As shown, a power head with a tool that can be dynamically adjusted online includes a box body 8, a motor 22 is provided on the outside of the box body 8, a motor gear 19 is provided on the output end of the motor 22, the motor gear 19 is rotatably connected to a main gear 20, and the main gear 20 is rotatably connected to a main shaft 18, the main shaft 18 is located in the middle position of the box body 8, one end of the main shaft 18 is located inside the box body 8, and its end face is connected to a cylinder body 14, a piston 15 is provided in the cylinder body 14, the other end of the main shaft 18 is located on the side of one end of the box body 8 close to the motor 22, and a slide groove is provided on its end face, a tool holder 25 is slidably connected in the slide groove, a tool 24 is provided on the outside of the tool holder 25, and the tool holder 25 is close to the main shaft 18. A bevel is provided on the side, and a cylinder rod 10 is provided in the main shaft 18. One end of the cylinder rod 10 is in contact with the bevel on one side of the main shaft 18, and the other end passes through the piston 15 in the cylinder body 14 and extends out of the cylinder body 14. A detection mechanism is provided on the cylinder rod 10 extending out of the cylinder body 14. A rear cover 5 is provided on the end of the box body 8 away from the main shaft 18, and a multi-channel rotary joint 2 and a rangefinder 6 are provided on the rear cover 5. The multi-channel rotary joint 2 is provided with an external oil pipe 1 at the outer end of the box body 8, and the multi-channel rotary joint 2 is rotatably connected to a connecting rod 11 and an internal oil pipe 9 at the inner end of the box body 8. The connecting rod 11 is connected to the main shaft 18, and the internal oil pipe 9 is respectively connected to the AB port of the cylinder body 14.

[0016] When the present invention is in use, the motor 22 drives the main shaft 18 to rotate, and drives the tool holder 25, the cylinder body 14, the cylinder rod 10, the connecting rod 11, and the detection mechanism to rotate together; when the tool 24 needs to move, by controlling the hydraulic oil from the external oil pipe 1 through the multi-channel rotary joint 2 into the cylinder body 14, the hydraulic oil drives the piston 15 to move and drives the cylinder rod 10 to move horizontally, and the cylinder rod 10 pushes the inclined surface of the tool holder 25, so that the tool holder 25 moves radially along the end face of the main shaft 18; the position of the detection mechanism is measured by the rangefinder 6, the hydraulic oil amount of the external oil pipe 1 is controlled, and then the cylinder rod position is closed-loop controlled to realize online dynamic adjustment of the position of the tool 24. The present invention controls the input of hydraulic oil in the hydraulic cylinder to promote the extension of the piston and connecting rod, thereby realizing online dynamic adjustment of the radial position of the tool without stopping the main shaft, meeting various complex processing requirements, with high precision, high efficiency, simple structure and easy maintenance; the hydraulic oil of the hydraulic cylinder of the present invention is connected to the hydraulic cylinder through a multi-channel rotary joint, and a detection disk for real-time position feedback is arranged on the hydraulic cylinder, thereby improving the tool adjustment accuracy. Example 2

[0017] On the basis of Example 1, in this embodiment, preferably, the detection mechanism includes a small detection disk 4 and a large detection disk 12, and the small detection disk 4 and the large detection disk 12 are respectively clamped with the cylinder rod 10, and the small detection disk 4 and the large detection disk 12 are provided with a retaining ring 13 at the connection between the cylinder rod 10, the diameter of the large detection disk 12 is larger than the diameter of the small detection disk 4, and the large detection disk 12 is closer to the main shaft 18 than the small detection disk 4, and the distance between the large detection disk 12 and the small detection disk 4 is not less than the tool adjustment range.

[0018] The detection mechanism described in the present invention includes a small detection disk 4 and a large detection disk 12, which are respectively clamped with the cylinder rod 10. Holes are opened in the middle of the small detection disk 4 and the large detection disk 12 for the internal oil circuit and the connecting rod to pass through. The rangefinder 6 is installed on the rear cover 5 and is staggered in height with the small detection disk 4 and the large detection disk 12. It detects the positions of the small detection disk 4 and the large detection disk 12 respectively, thereby controlling the hydraulic oil volume of the external oil pipe 1, pushing the extension amount of the piston and the connecting rod, and realizing online dynamic adjustment of the radial position of the tool without stopping the spindle. Example 3

[0019] On the basis of Example 1 or Example 2, in this embodiment, preferably, the multi-channel rotary joint 2 is fixedly connected to the rear cover 5 by screws I3, the rear cover 5 is fixedly connected to the box body 8 by screws II7, and the cylinder body 14 is fixedly connected to the main shaft 18 by screws III16.

[0020] The multi-channel rotary joint 2 of the present invention is fixedly connected to the rear cover 5 by screws I3, the rear cover 5 is fixedly connected to the box body 8 by screws II7, and the cylinder body 14 is fixedly connected to the main shaft 18 by screws III16. The screw connection method is adopted, which is fast and convenient. Example 4

[0021] On the basis of Example 1 or Example 3, in this embodiment, preferably, bearings 17 are provided between both ends of the main shaft 18 and the box body 8 , and a key 21 is provided between the main shaft 18 and the main gear 20 .

[0022] In the present invention, bearings 17 are provided between both ends of the main shaft 18 and the box body 8 to facilitate the rotation of the main shaft 18 , and a key 21 is provided between the main shaft 18 and the main gear 20 to achieve the connection between the main shaft 18 and the main gear 20 . Example 5

[0023] On the basis of Example 1 or Example 4, in this embodiment, preferably, a spring 23 is provided inside the tool holder 25 on the side close to the main shaft 18 .

[0024] The knife seat 25 of the present invention is provided with a spring 23 inside the side close to the main shaft 18 for applying a driving force to the knife seat 25 toward the center of the main shaft 18 . Example 6

[0025] On the basis of Example 1 or Example 5, in this embodiment, preferably, there is one or more cutting tools 24 , and the multiple cutting tools 24 are evenly distributed radially along the axis of the main shaft, and the cutting tools 24 are used to cut the blank 26 .

[0026] The present invention has one or more cutting tools 24, and the multiple cutting tools 24 are evenly distributed along the axis of the main shaft. The cutting tools 24 are used to cut the blank 26. Figure 1 The figure only shows the adjustment structure layout of two tools. For multiple tools, such as 3 or 4, they can be evenly distributed around the spindle, and by adding a detection disk and a distance meter, online dynamic adjustment of multiple tools can be achieved. Example 7

[0027] A method for online dynamic adjustment of a tool, using a power head with online dynamic adjustment of a tool as described above, comprises the following steps: S1. When in use, the motor 22 drives the main shaft 18 to rotate, and drives the tool holder 25, the cylinder body 14, the cylinder rod 10, the connecting rod 11, and the detection mechanism to rotate together; S2. When the tool 24 needs to move, the hydraulic oil is controlled to flow from the external oil pipe 1 through the multi-channel rotary joint 2 into the cylinder body 14. The hydraulic oil drives the piston 15 to move and drives the cylinder rod 10 to move horizontally. The cylinder rod 10 pushes the inclined surface of the tool holder 25, causing the tool holder 25 to move radially along the end face of the spindle 18. S3. The position of the detection mechanism is measured by the distance meter 6, the amount of hydraulic oil in the external oil pipe 1 is controlled, and the position of the cylinder rod is controlled in a closed loop to achieve online dynamic adjustment of the position of the tool 24.

[0028] The present invention controls the input of hydraulic oil in the hydraulic cylinder to push the extension of the piston and the connecting rod, and realizes online dynamic adjustment of the radial position of the tool without stopping the main shaft. It can realize compound processing of the blank, such as threading, chamfering, and curve turning, without the need for frequent tool replacement, and multiple tools can be processed at the same time, which greatly improves the processing efficiency of the blank. It also has a simple structure and is easy to maintain.

[0029] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by any technician familiar with this technical field within the technical scope disclosed by the present invention should be covered by the scope of protection of the present invention.

Claims

1. A power head with a tool that can be dynamically adjusted online, characterized by: The invention comprises a box body (8), wherein a motor (22) is provided on the outside of the box body (8), and a motor gear (19) is provided on the output end of the motor (22), and the motor gear (19) is rotatably connected to a main gear (20), and the main gear (20) is rotatably connected to a main shaft (18), and the main shaft (18) is located in the middle of the box body (8), and one end of the main shaft (18) is located inside the box body (8), and its end face is connected to a cylinder body (14), and a piston (15) is provided in the cylinder body (14), and the other end of the main shaft (18) is located on the side of one end of the box body (8) close to the motor (22), and a slide groove is provided on the end face, and a knife seat (25) is slidably connected in the slide groove, and a knife (24) is provided on the outside of the knife seat (25), and a slope is provided on the side of the knife seat (25) close to the main shaft (18), and the main shaft ( A cylinder rod (10) is provided in the oil cylinder body (18), one end of the cylinder rod (10) contacts the inclined surface on one side of the main shaft (18), and the other end passes through the piston (15) in the oil cylinder body (14) and extends out of the oil cylinder body (14). A detection mechanism is provided on the cylinder rod (10) extending out of the oil cylinder body (14). A rear cover (5) is provided at the end of the oil cylinder body (8) away from the main shaft (18). A multi-channel rotary joint (2) and a rangefinder (6) are provided on the rear cover (5). The multi-channel rotary joint (2) is provided with an external oil pipe (1) at one end outside the oil cylinder body (8). The multi-channel rotary joint (2) is rotatably connected to a connecting rod (11) and an internal oil pipe (9) at one end inside the oil cylinder body (8). The connecting rod (11) is connected to the main shaft (18), and the internal oil pipe (9) is respectively connected to the AB port of the oil cylinder body (14).

2. The power head with online dynamic adjustment of the tool according to claim 1, characterized in that: The detection mechanism comprises a small detection disk (4) and a large detection disk (12), the small detection disk (4) and the large detection disk (12) being respectively clamped with the cylinder rod (10), a clamping ring (13) being provided at the connection between the small detection disk (4) and the large detection disk (12) and the cylinder rod (10), the diameter of the large detection disk (12) being larger than the diameter of the small detection disk (4), the large detection disk (12) being closer to the main shaft (18) than the small detection disk (4), and the distance between the large detection disk (12) and the small detection disk (4) being no less than the tool adjustment range.

3. The power head with online dynamic adjustment of the tool according to claim 1, characterized in that: The multi-channel rotary joint (2) is fixedly connected to the rear cover (5) by screws I (3), the rear cover (5) is fixedly connected to the box body (8) by screws II (7), and the cylinder body (14) is fixedly connected to the main shaft (18) by screws III (16).

4. The power head with online dynamic adjustment of the tool according to claim 1, characterized in that: Bearings (17) are provided between the two ends of the main shaft (18) and the box body (8), and a key (21) is provided between the main shaft (18) and the main gear (20).

5. The power head with online dynamic adjustment of cutting tools according to claim 1, characterized in that: A spring (23) is provided inside the knife seat (25) on the side close to the main shaft (18).

6. The power head with online dynamic adjustment of the tool according to claim 1, characterized in that: There is one or more cutting tools (24), and the multiple cutting tools (24) are evenly distributed along the radial direction of the axis of the main shaft. The cutting tools (24) are used to cut the blank (26).

7. A method for online dynamic adjustment of a tool, using the power head with online dynamic adjustment of a tool as claimed in claim 1, characterized in that: The following steps are involved: S1. When in use, the motor (22) drives the main shaft (18) to rotate, and drives the tool holder (25), the cylinder body (14), the cylinder rod (10), the connecting rod (11), and the detection mechanism to rotate together; S2. When the tool (24) needs to move, the hydraulic oil is controlled to flow from the external oil pipe (1) through the multi-channel rotary joint (2) into the interior of the oil cylinder body (14). The hydraulic oil drives the piston (15) to move and drives the cylinder rod (10) to move horizontally. The cylinder rod (10) pushes the inclined surface of the tool holder (25), so that the tool holder (25) moves radially along the end face of the main shaft (18); S3. The position of the detection mechanism is measured by a distance meter (6), the amount of hydraulic oil in the external oil pipe (1) is controlled, and the position of the cylinder rod is controlled in a closed loop, thereby achieving online dynamic adjustment of the position of the tool (24).

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