A slot milling machine for ADI driveshafts

Abstract

The application relates to the technical field of ADI transmission shaft milling groove, and discloses a milling groove machine tool for ADI transmission shaft, which comprises a machine tool, a chuck, a top dead center fixing part, a workbench and a milling cutter mechanism, two fixed frames are fixedly arranged on the inner wall of the machine tool, a lead screw one is arranged in one of the fixed frames, and a lead screw two is arranged in the other fixed frame; movable sliding blocks are arranged on the lead screw one and the lead screw two; clamping parts corresponding to the movable sliding blocks are arranged on one side of the two movable sliding blocks; and connecting units are arranged between the clamping parts and the movable sliding blocks. The milling groove machine tool for ADI transmission shaft is characterized in that two clamping parts capable of moving independently or synchronously are arranged in the machine tool, the movable sliding blocks are driven by the lead screw one and the lead screw two, the clamping parts are driven to be accurately positioned in the vicinity of the milling groove area, the clamping roller is in contact with the transmission shaft body, multi-point support is formed, the cutting force is effectively dispersed, vibration and deformation are reduced, and the production cost is reduced.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of ADI transmission shaft milling grooves, in particular to a milling groove machine for an ADI transmission shaft. BACKGROUND

[0002] As a core component in a mechanical transmission system, a transmission shaft is used to transmit the rotating motion and torque of a power source to an actuator. During operation, the transmission shaft needs to bear complex alternating stresses from multiple directions, including torsion, shearing, bending and the like, and may thus induce vibration. In particular, with the increasing demand for light weight and high reliability in the modern equipment manufacturing industry, isothermal quenching nodular cast iron (ADI) material is gradually becoming an important choice for manufacturing high-performance transmission shafts due to its excellent comprehensive performance in strength, toughness, wear resistance and vibration reduction. The ADI transmission shaft made of the material can realize light weight and optimized design of the component while ensuring the bearing capacity.

[0003] Milling grooves on the transmission shaft, such as key grooves, oil grooves or spiral grooves, is a key process in the manufacturing of such parts. At present, a common processing method is to use a disc cutter or a vertical cutter to cut the clamped shaft workpiece on a general milling machine or a special milling machine (slotting machine). During processing, the workpiece is positioned and clamped by the center or chuck at both ends of the machine tool, the cutter rotates at high speed under the drive of the main shaft, and moves along the axial or radial direction of the workpiece through the feeding system, so as to cut off the material and form the required groove type.

[0004] However, when processing a long ADI transmission shaft, the axial rigidity of the transmission shaft is limited due to its slender shaft type, and when the cutter cuts, especially when slot milling (the entire diameter of the cutter participates in cutting, the contact arc is large and the load is high), a significant radial cutting force is generated. This force acts on the middle part of the workpiece which lacks effective support, and is easy to cause bending deformation, tool letting and continuous forced vibration of the workpiece. For ADI material with high hardness, if the processing area is far away from the support point during processing, vibration is likely to occur. The vibration not only causes unstable groove width and groove depth, but also accelerates the abnormal wear of the cutter and even causes the cutter to break. Therefore, we propose a milling groove machine for an ADI transmission shaft. SUMMARY

[0005] The purpose of the present application is to provide a milling groove machine for an ADI transmission shaft to solve the problems raised in the background.

[0006] In order to achieve the above object, the present application provides the following technical scheme: a groove milling machine for ADI transmission shaft, comprising a machine tool, a chuck and a tailstock fixed part for fixing the transmission shaft body, a workbench fixedly installed in the machine tool, the tailstock fixed part is limited to move on the workbench, and a milling cutter mechanism installed in the machine tool, two fixed frames are fixedly installed on the inner wall of the machine tool, one of the fixed frames is internally installed with a lead screw one rotatably connected with the inner wall thereof, the other fixed frame is internally installed with a lead screw two rotatably connected with the inner wall thereof, and positioning frames fixedly connected with the inner wall of the machine tool are installed at both ends of the fixed frame, and one of the positioning frames is provided with a driving mechanism for controlling the rotation of the lead screw one and the lead screw two;

[0007] The lead screw one and the lead screw two are both installed with a movable sliding block slidingly connected with the inner wall of the fixed frame, the movable sliding blocks are both provided with a clamping part corresponding thereto, a connecting unit is arranged between the clamping part and the movable sliding block, a fixed seat body is arranged below the transmission shaft body, the connecting unit comprises a positioning sliding block fixedly connected with the movable sliding block, a circular sleeve is further fixedly installed on the positioning sliding block, a sliding shaft body is fixedly installed at the bottom of the fixed seat body, the sliding shaft body extends into the circular sleeve through the outer wall of the circular sleeve, the sliding shaft body is slidingly connected with the circular sleeve, a stress shaft body is further installed at the end of the sliding shaft body and slidingly connected with the inner wall of the sliding shaft body, the stress shaft body is connected with the inner wall of the end of the sliding shaft body through a spring mechanism, and a ball is embedded in the end of the stress shaft body; the movable sliding blocks move under the action of the driving mechanism, so that the two movable sliding blocks drive the corresponding clamping parts to adjust the position through the connecting unit, and the movable sliding blocks move to the vicinity of the milling groove area before the milling cutter mechanism works, so as to support the transmission shaft body.

[0008] Preferably, the clamping part comprises support seat bodies arranged on both sides of the fixed seat body, clamping rollers rotatably connected with the fixed seat body and the support seat body are installed on the fixed seat body and the support seat body, and the fixed seat body and the support seat body are connected through a steel rod frame.

[0009] Preferably, a limiting shaft body slidingly connected with the inner wall of the circular sleeve is installed in the circular sleeve, a protruding part is further fixedly installed on the limiting shaft body, the end of the stress shaft body embedded with the ball is located on the movement track of the protruding part, one end of the limiting shaft body is fixedly installed with an iron block, and an electromagnetic mechanism is fixedly installed on the inner wall of one end of the circular sleeve, and the electromagnetic mechanism generates repulsive force on the iron block when electrified.

[0010] Preferably, an annular frame is further fixedly installed at the end of the limiting shaft body away from the iron block, a cavity is arranged in the annular frame, a plurality of guide shaft bodies are fixedly installed on the annular frame, the end of the guide shaft body extends to the outside through the inner wall of the circular sleeve, the guide shaft body is slidingly connected with the inner wall of the circular sleeve, and a compression spring is connected between the guide shaft body and the outer wall of the circular sleeve.

[0011] Preferably, the circular sleeve is internally provided with a rotating shaft body rotatably connected with the inner wall of the circular sleeve, one end of the rotating shaft body is located at one side of the annular frame, the other end is located outside the circular sleeve, one end of the rotating shaft body located at one side of the annular frame is fixedly provided with a circular disc frame, and a plurality of square frames are fixedly provided on the circular disc frame, each square frame is internally provided with a shielding sliding block slidingly connected with the inner wall of the square frame, and a constant force spring is connected between the shielding sliding block and the inner wall of the square frame.

[0012] Preferably, the machine tool is further provided with a strip-shaped gear rack fixedly installed on the inner wall, and a meshing gear is installed on one end of the rotating shaft body located outside the circular sleeve, and the meshing gear is engaged with the strip-shaped gear rack.

[0013] Preferably, the screw threads of the lead screw one and the lead screw two are opposite in rotation direction.

[0014] Preferably, the driving mechanism comprises a servo motor fixedly installed on one of the positioning frames, the output end of the servo motor penetrates through the side wall of the positioning frame and extends into the interior thereof, an iron shaft body is slidingly connected with the inner wall of the output end of the servo motor, a driving gear is fixedly installed on the iron shaft body, and a return spring is connected between the iron shaft body and the output end of the servo motor.

[0015] Preferably, one end of each of the lead screw one and the lead screw two is located inside one of the positioning frames, a driven gear one engaged with the driving gear is fixedly installed on the lead screw one, a driven gear two engaged with the driving gear is fixedly installed on the lead screw two, and an electromagnet body is fixedly installed on the side wall of the positioning frame, and the electromagnet body is electrified to generate a magnetic force on the iron shaft body.

[0016] Preferably, the intersection between the protruding portion and the outer wall of the limiting shaft body is arc-shaped.

[0017] Compared with the prior art, the present application has the following advantages:

[0018] The present application sets two clamping parts which can be independently or synchronously moved in the machine tool, drives the movable sliding block by the lead screw one and the lead screw two, and then drives the clamping part to accurately position near the milling groove area, the clamping part comprises a fixed seat body and a supporting seat body, the contact between the clamping roller and the transmission shaft body forms multi-point support, effectively disperses the cutting force, reduces vibration and deformation, this design not only improves the machining precision, but also prolongs the service life of the tool, reduces the production cost.

[0019] The application realizes the quick disengagement of the clamping part in the non-working state and the stable clamping in the working state through the synergistic effect of the electromagnetic mechanism and the limiting shaft body, when the clamping position needs to be adjusted, the electromagnetic mechanism is powered on to make the limiting shaft body move, the constraint on the stressed shaft body is released, the clamping part is lowered under the action of the spring mechanism and gravity, the interference with the transmission shaft body is avoided, after adjustment, the electromagnetic mechanism is powered off, the limiting shaft body is reset, the stressed shaft body is re-constrained through the protruding part, the clamping part stably supports the transmission shaft body, this design greatly improves the machining efficiency and flexibility, and meets the machining needs of ADI transmission shafts with different lengths and diameters. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the application;

[0021] Figure 2 It is a schematic diagram of the internal structure of the machine tool of the application;

[0022] Figure 3 It is a schematic diagram of the chuck and transmission shaft body structure of the application;

[0023] Figure 4 It is a schematic diagram of the fixed frame and positioning frame structure of the application;

[0024] Figure 5 It is a schematic diagram of the internal structure of the fixed frame and positioning frame of the application;

[0025] Figure 6 It is a schematic diagram of the driving mechanism structure of the application;

[0026] Figure 7 It is a schematic diagram of the clamping part and transmission shaft body structure of the application;

[0027] Figure 8 It is a schematic diagram of the circular sleeve and clamping part structure of the application;

[0028] Figure 9 It is a schematic diagram of the internal structure of the circular sleeve of the application;

[0029] Figure 10 It is a schematic diagram of the clamping part structure of the application;

[0030] Figure 11 It is a schematic diagram of the shielding slider and annular frame structure of the application.

[0031] In the figure: 1, machine tool; 2, transmission shaft body; 3, chuck; 4, tailstock fixing part; 5, workbench; 6, milling cutter mechanism; 7, fixed frame; 71, screw rod one; 72, screw rod two; 73, positioning frame; 74, movable sliding block; 8, driving mechanism; 81, servo motor; 82, iron shaft body; 83, driving gear; 84, return spring; 85, driven gear one; 86, driven gear two; 87, electromagnet body; 9, clamping part; 91, fixed seat body; 92, support seat body; 93, clamping roller; 94, steel rod frame; 95, sliding shaft body; 96, force receiving shaft body; 97, spring mechanism; 98, support roller; 10, connecting unit; 101, positioning sliding block; 102, circular sleeve; 103, limiting shaft body; 104, protruding part; 105, compression spring; 106, iron block; 107, electromagnetic mechanism; 108, annular frame; 109, cavity; 100, guide shaft body; 11, rotating shaft body; 111, circular disc frame; 112, square frame; 113, shielding sliding block; 114, constant force spring; 115, meshing gear; 12, strip-shaped gear row. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0033] Please refer to Figures 1-11 , the present application provides a technical solution: a slot milling machine tool for ADI transmission shaft, the present application makes corresponding improvement for the technical problems in the background art, so that when milling slot on long transmission shaft, support near the transmission shaft milling slot processing area, combined with the Figure 1 and the Figure 2 shown, including machine tool 1, chuck 3 and tailstock fixing part 4 installed in machine tool 1 and used for fixing transmission shaft body 2, workbench 5 is also fixedly installed in machine tool 1, tailstock fixing part 4 is limited to move on workbench 5, and milling cutter mechanism 6 is installed in machine tool 1, during specific work, transmission shaft body 2 is fixed through chuck 3 and tailstock fixing part 4, then milling cutter mechanism 6 performs slot milling work under the action of feeding system, chuck 3 is connected with the power unit of machine tool 1, since the feeding system and the power unit of machine tool 1 are prior art, and then the present application does not make too much description on them.

[0034] Combined with the Figure 3 , the Figure 4 and the Figure 5As shown, two fixed frames 7 are fixedly installed on the inner wall of the machine tool 1, one of the fixed frames 7 is internally installed with a lead screw one 71 rotationally connected with the inner wall thereof, the other fixed frame 7 is internally installed with a lead screw two 72 rotationally connected with the inner wall thereof, the screw rotation directions of the lead screw one 71 and the lead screw two 72 are opposite, and the lead screw one 71 and the lead screw two 72 are both installed with movable sliding blocks 74 slidingly connected with the inner wall of the fixed frame 7, so that when the lead screw one 71 and the lead screw two 72 rotate in the same direction, the movement directions of the two movable sliding blocks 74 are opposite, and the fixed frame 7 is installed with positioning frames 73 fixedly connected with the inner wall of the machine tool 1 at both ends thereof, and one of the positioning frames 73 is provided with a driving mechanism 8 for controlling the rotation of the lead screw one 71 and the lead screw two 72.

[0035] The drawings are combined Figure 6 As further defined in the present application, the driving mechanism 8 comprises: a servo motor 81 fixedly installed on one of the positioning frames 73, the output end of the servo motor 81 penetrates through the side wall of the positioning frame 73 and extends into the interior thereof, and an iron shaft body 82 slidingly connected with the inner wall thereof is installed on the output end of the servo motor 81, a driving gear 83 is fixedly installed on the iron shaft body 82, a return spring 84 is connected between the iron shaft body 82 and the output end of the servo motor 81, one end of each of the lead screw one 71 and the lead screw two 72 is located in the interior of one of the positioning frames 73, a driven gear one 85 engaged with the driving gear 83 is fixedly installed on the lead screw one 71, a driven gear two 86 engaged with the driving gear 83 is fixedly installed on the lead screw two 72, and an electromagnet body 87 is fixedly installed on the side wall of the positioning frame 73, and the electromagnet body 87 is electrified to generate a magnetic force on the iron shaft body 82, and further, the positions of the driven gear one 85 and the driven gear two 86 are different, i.e. the driven gear one 85 is close to the electromagnet body 87, and the driven gear two 86 is relatively close to the output end of the servo motor 81; since the poles of the electromagnet body 87 can be adjusted by changing the current direction, for the convenience of description, the present application is illustrated by an example, it is assumed that the electromagnet body 87 is normally electrified, the current direction is positive, at this time the electromagnet body 87 generates an attractive force on the iron shaft body 82, and the return spring 84 is in a stretched state, i.e. when the current direction of the electromagnet body 87 is changed, the electromagnet body 87 is reversely electrified, i.e. the electromagnet body 87 generates a repulsive force on the iron shaft body 82, and the return spring 84 is in a compressed state.

[0036] And one side of each of the two movable sliding blocks 74 is provided with a corresponding clamping part 9, combined with the drawings Figure 4 , the drawings Figure 6 , the drawings Figure 7 , the drawings Figure 8 and the drawings Figure 10As shown, as further defined in the present application, the clamping part 9 comprises a fixed seat body 91 located below the transmission shaft body 2, and a support roller 98 is rotatably installed on the fixed seat body 91, and the support roller 98 is attached to the surface of the transmission shaft body 2, and support seat bodies 92 are arranged on both sides of the fixed seat body 91, and clamping rollers 93 are installed on the fixed seat body 91 and the support seat bodies 92 and are rotatably connected thereto, and the fixed seat body 91 and the support seat bodies 92 are connected by a steel rod frame 94, and further, the steel rod frame 94 is rotatably connected to the fixed seat body 91 and the support seat bodies 92, and when replacing the transmission shaft body 2 with different outer diameters, the angle of the steel rod frame 94 on the fixed seat body 91 or the angle of the support seat body 92 on the steel rod frame 94 can be adjusted, so that the clamping roller 93 on the support seat body 92 is attached to the surface of the transmission shaft body 2, and after adjusting the angle, the steel rod frame 94 can be fixedly connected to the fixed seat body 91 and the support seat bodies 92 by bolts, and the fixed seat body 91 is fixedly installed at the bottom of the sliding shaft body 95, and the sliding shaft body 95 extends through the outer wall of the circular sleeve 102 and extends into the inside, and the sliding shaft body 95 is slidably connected to the circular sleeve 102, and the sliding shaft body 95 is also installed at the end with a force shaft body 96 that is slidably connected to the inner wall thereof, wherein the force shaft body 96 is connected to the inner wall of the end of the sliding shaft body 95 with a spring mechanism 97, and the end of the force shaft body 96 is embedded with a ball; combined with the drawings Figure 8 As shown, the clamping roller 93 on the fixed seat body 91 is in contact with the lowest point of the transmission shaft body 2, and the clamping roller 93 on the support seat body 92 is in contact with the outer wall near the center plane of the transmission shaft body 2, and through the three clamping rollers 93, the transmission shaft body 2 milling area is limited, on the one hand to avoid vibration, on the other hand to effectively support the transmission shaft body 2 from bending deformation, tool breaking and other conditions due to its own weight and the force during milling, and the clamping part 9 and the movable slider 74 are provided with a connecting unit 10, and the lead screw 1 71 and the lead screw 2 72 drive the movable slider 74 to move under the action of the driving mechanism 8, so that the two movable sliders 74 drive the corresponding clamping parts 9 to adjust the position through the connecting unit 10, and move to the milling area before the milling cutter mechanism 6 works to support the transmission shaft body 2, that is, the two movable sliders 74 make the corresponding clamping rollers 93 move to the both ends of the milling area respectively, so as to achieve the purpose of supporting the milling area.

[0037] Combined with the drawings Figure 7 , the drawings Figure 8 , the drawings Figure 9 and the drawings Figure 11As shown, the connecting unit 10 comprises a positioning slider 101 fixedly connected with the movable slider 74, a circular sleeve 102 is also fixedly installed on the positioning slider 101, a limiting shaft body 103 is installed in the circular sleeve 102 and is in sliding connection with the inner wall of the circular sleeve 102, a protruding portion 104 is also fixedly installed on the limiting shaft body 103, the intersection between the protruding portion 104 and the outer wall of the limiting shaft body 103 is designed in an arc shape, the end of the stress shaft body 96 embedded with the ball is located on the movement track of the protruding portion 104, one end of the limiting shaft body 103 is fixedly installed with an iron block 106, and an electromagnetic mechanism 107 is fixedly installed on the inner wall of one end of the circular sleeve 102, the electromagnetic mechanism 107 generates a repulsive force on the iron block 106 when electrified, and the end of the limiting shaft body 103 away from the iron block 106 is also fixedly installed with an annular frame 108, wherein a cavity 109 is arranged in the annular frame 108, a plurality of guide shaft bodies 100 are fixedly installed on the annular frame 108, the end portions of the guide shaft bodies 100 penetrate through the inner wall of the circular sleeve 102 and extend to the outside, and the guide shaft bodies 100 are in sliding connection with the inner wall of the circular sleeve 102, the compression springs 105 are connected between the guide shaft bodies 100 and the outer wall of the circular sleeve 102, a rotating shaft body 11 is installed in the circular sleeve 102 and is in rotary connection with the inner wall of the circular sleeve 102, wherein one end of the rotating shaft body 11 is located on one side of the annular frame 108, and the other end is located outside the circular sleeve 102, a circular disc frame 111 is fixedly installed on one end of the rotating shaft body 11 located on one side of the annular frame 108, and a plurality of square frames 112 are fixedly installed on the circular disc frame 111, a shielding slider 113 is installed in each square frame 112 and is in sliding connection with the inner wall of the square frame 112, a constant force spring 114 is connected between the shielding slider 113 and the inner wall of the square frame 112, a strip-shaped toothed row 12 is also fixedly installed in the inner wall of the machine tool 1, and an engagement gear 115 is installed on the end of the rotating shaft body 11 located outside the circular sleeve 102, and the engagement gear 115 is in engagement with the strip-shaped toothed row 12, it is further stated that the working of the above-mentioned servo motor 81, the electromagnet body 87 and the electromagnetic mechanism 107 can be controlled by the terminal, since the program design of the terminal belongs to the conventional means of the person skilled in the art, and thus the present application does not make too much description

[0038] Specifically, in the process of milling the transmission shaft body 2, first, the processing area needs to be determined. After the processing area is determined, it is the initial state, that is, the driving gear 83 is engaged with the driven gear one 85 and the driven gear two 86. Then the current direction of the electromagnet body 87 can be selectively controlled according to the processing area. Assuming that only one movable slider 74 needs to be controlled to move, the electromagnet body 87 can be controlled to be forward or reverse energized, that is, the electromagnet body 87 generates attractive or repulsive force on the iron shaft body 82. Then the iron shaft body 82 will make the driving gear 83 adjust the position on the output end of the servo motor 81 under the action of the magnetic force. It should be noted that the number of rotations of the servo motor 81 is designed to be a full rotation to avoid the condition of gear collision when the driving gear 83 is engaged with the driven gear one 85 or the driven gear two 86. When the electromagnet body 87 is forward or reverse energized, the driving gear 83 will be engaged with the driven gear one 85 or the driven gear two 86. That is, under the condition of energizing the electromagnet body 87, the driving gear 83 only engages one. Of course, selective energization can also be made according to actual production conditions to make the movement of the two movable sliders 74 diverse. Then when the lead screw one 71 or the lead screw two 72 rotates, the movable slider 74 on it will move within the fixed frame 7, so that the milling area of the transmission shaft body 2 is located between the two movable sliders 74.

[0039] For the convenience of description, the present application is described when the clamping roller 93 has clamped the transmission shaft body 2, at this time the support roller 98 on the fixed seat body 91 contacts the lowest point of the transmission shaft body 2, and the clamping roller 93 on the two support seat bodies 92 contacts the outer wall of the transmission shaft body 2, and then in the milling process, the three clamping rollers 93 can effectively limit the milling area of the transmission shaft body 2, after the milling of the area is completed, if the milling of other areas is needed, first control the electromagnetic mechanism 107 to be energized, the electromagnetic mechanism 107 is energized to generate a repulsive force on the iron block 106 at the end of the limiting shaft body 103, and then the limiting shaft body 103 moves in the circular sleeve 102, and the ring-shaped frame 108 at the end of the limiting shaft body 103 moves towards the circular disc frame 111, and the plurality of guide shaft bodies 100 at the end of the ring-shaped frame 108 stretches the compression spring 105, in this process, the protruding portion 104 on the limiting shaft body 103 moves away from the end of the stress shaft body 96, it should be noted that when the end of the stress shaft body 96 embedded with the ball contacts the protruding portion 104, the spring mechanism 97 between the stress shaft body 96 and the inner wall of the sliding shaft body 95 is in a compressed state, and then when the protruding portion 104 moves away from the end of the stress shaft body 96, the end of the stress shaft body 96 embedded with the ball is in contact with the surface of the limiting shaft body 103 under the action of the spring mechanism 97 and gravity, at this time the fixed seat body 91 drives the support seat body 92 to move downward synchronously through the steel rod frame 94, that is, the support roller 98 on the fixed seat body 91 and the clamping roller 93 on the two support seat bodies 92 do not contact the surface of the transmission shaft body 2 and are located below the transmission shaft body 2, thereby releasing the limitation of the transmission shaft body 2 and not contacting the surface of the transmission shaft body 2, when the ring-shaped frame 108 moves with the limiting shaft body 103, and the end of the stress shaft body 96 embedded with the ball contacts the surface of the limiting shaft body 103, at this time the square frame 112 on the circular disc frame 111 enters the cavity 109, and then the servo motor 81 is started, and the screw rod one 71 and the screw rod two 72 are rotated under the action of the electromagnet body 87, or one of the screw rod one 71 and the screw rod two 72 is rotated, that is, the movable sliding block 74 moves in the fixed frame 7, and the circular sleeve 102 moves synchronously through the positioning sliding block 101 in the movement process of the movable sliding block 74, the rotating shaft body 11 in the circular sleeve 102 moves synchronously in the movement process of the circular sleeve 102, and then the meshing gear 115 on the rotating shaft body 11 meshes with the strip-shaped toothed row 12, that is, the rotating shaft body 11 rotates, the square frame 112 on the circular disc frame 111 rotates synchronously in the rotation process of the rotating shaft body 11, that is, the shielding sliding block 113 in the square frame 112 moves outward from the square frame 112 under the action of the centrifugal force, at this time the constant force spring 114 is in a stretched state, and the shielding sliding block 113 enters the cavity 109 and is located on the movement track of the ring-shaped frame 108, it should be noted thatWhen the square frame 112 enters the chamber 109, the square frame 112 is not on the movement track of the annular frame 108, and the blocking slider 113 is on the movement track of the annular frame 108 only when the blocking slider 113 moves outward from the square frame 112 under the action of the centrifugal force, at which time the electromagnetic mechanism 107 can not be energized, and the resetting of the annular frame 108 can be effectively hindered as the blocking slider 113 is in the chamber 109, so that the support roller 98 on the fixed seat body 91 and the clamping roller 93 on the two support seat bodies 92 cannot move to the surface of the transmission shaft body 2, and the position adjustment according to the milling groove area can be effectively performed.

[0040] When the square frame 112 enters the chamber 109, the square frame 112 is not on the movement track of the annular frame 108, and the blocking slider 113 is on the movement track of the annular frame 108 only when the blocking slider 113 moves outward from the square frame 112 under the action of the centrifugal force, at which time the electromagnetic mechanism 107 can not be energized, and the resetting of the annular frame 108 can be effectively hindered as the blocking slider 113 is in the chamber 109, so that the support roller 98 on the fixed seat body 91 and the clamping roller 93 on the two support seat bodies 92 cannot move to the surface of the transmission shaft body 2, and the position adjustment according to the milling groove area can be effectively performed.

[0041] It is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting; it is not intended to exclude myriad other embodiments of the present application that other inventors can develop based on the same general inventive concepts embodied by the described embodiments. That is, although the present application is described in terms of particular embodiments and illustrative figures, it should be apparent that the scope of the present application is not limited to these specific embodiments.

[0042] While the embodiments of the application have been shown and described herein, it will be understood by those skilled in the art that many changes, modifications, substitutions and alterations to these embodiments can be made without departing from the principles and spirits of the application, and it is intended that the scope of the application be limited solely by the scope of the appended claims and the equivalents thereof.

Claims

1. A slot milling machine for ADI drive shafts, comprising a machine tool (1), a chuck (3) and a tailstock fixing portion (4) mounted inside the machine tool (1) and used for fixing a drive shaft body (2), a worktable (5) fixedly mounted inside the machine tool (1), the tailstock fixing portion (4) being limitedly movable on the worktable (5), and a milling cutter mechanism (6) mounted inside the machine tool (1), characterized in that, The machine tool (1) is fixedly installed with two fixed frames (7) on the inner wall, one of the fixed frames (7) is internally installed with a lead screw one (71) which is rotationally connected with the inner wall, the other fixed frame (7) is internally installed with a lead screw two (72) which is rotationally connected with the inner wall, and the fixed frames (7) are both installed with a positioning frame (73) which is fixedly connected with the inner wall of the machine tool (1), and one of the positioning frames (73) is provided with a driving mechanism (8) for controlling the rotation of the lead screw one (71) and the lead screw two (72); The lead screw one (71) and the lead screw two (72) are both installed with a movable sliding block (74) which is slidingly connected with the inner wall of the fixed frame (7), and the movable sliding blocks (74) are both provided with a clamping part (9) corresponding thereto, and the clamping part (9) and the movable sliding block (74) are provided with a connecting unit (10) therebetween, the connecting unit (10) comprises a positioning sliding block (101) which is fixedly connected with the movable sliding block (74), the positioning sliding block (101) is further fixedly installed with a circular sleeve (102), the fixed seat body (91) is fixedly installed with a sliding shaft body (95) at the bottom, and the sliding shaft body (95) extends into the circular sleeve (102) through the outer wall and extends into the inside, and the sliding shaft body (95) is slidingly connected with the circular sleeve (102), and the sliding shaft body (95) is further installed with a stress shaft body (96) which is slidingly connected with the inner wall, and the stress shaft body (96) is connected with the spring mechanism (97) on the inner wall of the end of the sliding shaft body (95), and the stress shaft body (96) is embedded with a ball, and the lead screw one (71) and the lead screw two (72) drive the movable sliding block (74) to move under the action of the driving mechanism (8), so that the two movable sliding blocks (74) drive the corresponding clamping parts (9) to adjust the position through the connecting unit (10), and the clamping parts (9) are moved to the vicinity of the milling groove area before the milling cutter mechanism (6) works, so as to support the transmission shaft body (2).

2. A slot milling machine for ADI propeller shafts according to claim 1, characterized in that: The clamping part (9) comprises a support seat body (92) provided on both sides of the fixed seat body (91), and the fixed seat body (91) and the support seat body (92) are both installed with a clamping roller (93) which is rotationally connected therewith, and the fixed seat body (91) and the support seat body (92) are connected through the steel rod frame (94).

3. A grooving machine for ADI driveshafts according to claim 2, characterized in that: A limiting shaft body (103) is installed in the circular sleeve (102) and is slidingly connected with the inner wall, the limiting shaft body (103) is further fixedly installed with a protruding part (104), the end of the stress shaft body (96) embedded with a ball is located on the movement track of the protruding part (104), one end of the limiting shaft body (103) is fixedly installed with an iron block (106), and an electromagnetic mechanism (107) is fixedly installed on the inner wall of one end of the circular sleeve (102), and the electromagnetic mechanism (107) generates a repulsive force on the iron block (106) when electrified.

4. A grooving machine for ADI propeller shafts according to claim 3, characterized in that: The end of the limiting shaft body (103) away from the iron block (106) is also fixedly provided with an annular frame (108), a cavity (109) is arranged in the annular frame (108), a plurality of guide shaft bodies (100) are fixedly arranged on the annular frame (108), the end of the guide shaft body (100) penetrates through the inner wall of the circular sleeve (102) and extends to the outside, and the guide shaft body (100) is in sliding connection with the inner wall of the circular sleeve (102), and a compression spring (105) is connected between the guide shaft body (100) and the outer wall of the circular sleeve (102).

5. A grooving machine for ADI propeller shafts according to claim 4, characterized in that: A rotating shaft body (11) is arranged in the circular sleeve (102) and is in rotary connection with the inner wall of the circular sleeve (102), one end of the rotating shaft body (11) is located on one side of the annular frame (108), the other end is located outside the circular sleeve (102), a circular disc frame (111) is fixedly arranged at the end of the rotating shaft body (11) located on one side of the annular frame (108), a plurality of square frames (112) are fixedly arranged on the circular disc frame (111), a shielding sliding block (113) is arranged in each square frame (112) and is in sliding connection with the inner wall of the square frame (112), and a constant force spring (114) is connected between the shielding sliding block (113) and the inner wall of the square frame (112).

6. A grooving machine for ADI propeller shafts according to claim 5, characterized in that: A strip-shaped tooth row (12) is fixedly arranged on the inner wall of the machine tool (1), and a meshing gear (115) is arranged at the end of the rotating shaft body (11) located outside the circular sleeve (102), and the meshing gear (115) is in meshing connection with the strip-shaped tooth row (12).

7. A grooving machine for ADI propeller shafts according to claim 1, characterized in that: The screw rotation directions of the lead screw one (71) and the lead screw two (72) are opposite.

8. A grooving machine for ADI propeller shafts according to claim 7, characterized in that: The driving mechanism (8) comprises a servo motor (81) fixedly arranged on one of the positioning frames (73), the output end of the servo motor (81) penetrates through the side wall of the positioning frame (73) and extends to the inside, an iron shaft body (82) is arranged in sliding connection with the inner wall of the output end of the servo motor (81), a driving gear (83) is fixedly arranged on the iron shaft body (82), and a return spring (84) is connected between the iron shaft body (82) and the output end of the servo motor (81).

9. A grooving machine for ADI propeller shafts according to claim 8, characterized in that: One end of each of the lead screw one (71) and the lead screw two (72) is located in one of the positioning frames (73), a driven gear one (85) in meshing connection with the driving gear (83) is fixedly arranged on the lead screw one (71), a driven gear two (86) in meshing connection with the driving gear (83) is fixedly arranged on the lead screw two (72), an electromagnet body (87) is fixedly arranged on the side wall of the positioning frame (73), and the electromagnet body (87) is electrified to generate a magnetic force on the iron shaft body (82).

10. A grooving machine for ADI propeller shafts according to claim 6, characterized in that: The intersection between the protruding portion (104) and the outer wall of the limiting shaft body (103) is designed in an arc shape.

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