A kind of auxiliary support device for large slenderness ratio ball screw machining of numerical control lathe

Abstract

The utility model discloses a kind of for numerical control lathe processing big slender ratio ball screw auxiliary supporting device, it is used to be aimed at big slender ratio ball screw clamping fixed, it includes: frame;Display, it is located on frame, display is used to support device control;Clamping structure, it is located on frame, clamping structure includes jaw, jaw can be adjusted, for big slender ratio ball screw clamping fixed, clamping structure also includes roller, roller is used to support big slender ratio ball screw.This for numerical control lathe processing big slender ratio ball screw auxiliary supporting device, by the accurate clamping of clamping structure, horizontal and height adjustment of lifting structure, effectively solve big slender ratio ball screw processing vibration, bending problem, improve processing precision;Clamping structure can be self-adapting adjustment according to workpiece outer diameter, lifting structure satisfies different lathe height demand, moving structure is convenient for device position adjustment, adapts multiple processing scene and workpiece specification.

Description

Technical Field

[0001] This utility model relates to the field of ball screw machining technology with large slenderness ratio, specifically to an auxiliary support device for machining ball screws with large slenderness ratio on CNC lathes. Background Technology

[0002] In the era of booming intelligent manufacturing, ball screws, as core transmission components, have become the "joint hub" of modern mechanical equipment due to their excellent motion conversion performance and precision transmission characteristics. As a key component that efficiently converts rotary motion into linear motion, it significantly reduces the coefficient of friction through its circulating ball structure, improving transmission efficiency by nearly 3 times compared to traditional sliding screws, and achieving transmission precision at the micron or even sub-micron level, fundamentally revolutionizing mechanical transmission methods.

[0003] In the field of ball screw manufacturing, ball screws of various lengths are custom-made to meet customers' diverse needs for mechanical equipment transmission performance and installation space, covering standard lengths and extra-long specifications. Among these, ball screws with a high slenderness ratio typically refer to special specifications whose length exceeds the support capacity of conventional machining equipment. During rough machining on CNC lathes, due to their high weight, high length-to-diameter ratio, and significant centrifugal force generated at high speeds, these screws are highly susceptible to bending and deflection. Therefore, auxiliary devices are necessary for support and lifting to ensure the straightness and stability of the screw during rough machining, providing a high-precision foundation for subsequent finishing processes. Utility Model Content

[0004] The purpose of this invention is to provide an auxiliary support device for CNC lathe machining of ball screws with large slenderness ratios, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an auxiliary support device for machining ball screws with a large slenderness ratio on a CNC lathe, used for clamping and fixing ball screws with a large slenderness ratio, comprising:

[0006] frame;

[0007] A display, which is mounted on the frame, is used to control the support device;

[0008] A clamping structure is provided on the frame. The clamping structure includes a jaw that is adjustable for clamping and fixing the high slenderness ratio ball screw. The clamping structure also includes a roller for supporting the high slenderness ratio ball screw.

[0009] A lifting structure is provided on the frame and connected to the clamping structure, and the lifting structure is used to adjust the height of the clamping structure;

[0010] A movable structure is provided at the bottom of the frame and extends downward to move the support device.

[0011] Preferably, the clamping structure further includes a clamping support platform disposed on the lifting structure, and the clamping structure further includes a first transmission box, with a transmission box disposed on the outside of the first transmission box, and a first motor disposed on the transmission box;

[0012] The first transmission box has a first lead screw inside, and the first motor drives the first lead screw to rotate using the transmission box;

[0013] The first lead screw is connected to the gripper.

[0014] Preferably, the clamping structure further includes an outer diameter sensor disposed on the clamping support platform, the outer diameter sensor being used to detect the size of the high slenderness ratio ball screw, and the roller being connected to the clamping support platform.

[0015] Preferably, a second motor is provided at the bottom of the clamping support platform, one end of the second motor is connected to a lifting member, the lifting member is provided with a support plate, and the support plate is connected to the first transmission box.

[0016] Preferably, the lifting structure includes a lifting support platform mounted on the frame. The lifting support platform is provided with a second transmission box and a distance measuring sensor. The distance measuring sensor is used to detect the distance between the clamping structure and the lifting structure. The inner side of the second transmission box is provided with a flange, and the outer side of the second transmission box is provided with a third motor. The third motor is provided with a coupling, and one end of the coupling is connected to the second transmission box.

[0017] Preferably, the flange and the clamping support platform are connected.

[0018] Preferably, the movable structure includes a fixed plate disposed in the frame, the bottom of the fixed plate is provided with two sets of sliding plates and mounting blocks, there are four sets of sliding plates and mounting blocks, which are arranged in a vertically opposite mirror image, and the other two sets of sliding plates and mounting blocks are connected to a base plate, the bottom of the base plate is provided with casters.

[0019] Preferably, the slide plate is provided with a connecting slide rod.

[0020] Preferably, both the connecting slide rod and the mounting block are provided with support arms.

[0021] Preferably, a slider is sleeved on the connecting slide rod, and a second lead screw is provided on the slider, with one end of the second lead screw connected to a fourth motor.

[0022] Compared with the prior art, the beneficial effects of this utility model are as follows: This auxiliary support device for machining ball screws with large slenderness ratios on CNC lathes effectively solves the vibration and bending problems in machining ball screws with large slenderness ratios through the precise clamping of the clamping structure and the horizontal and height adjustment of the lifting structure, thereby improving machining accuracy; the clamping structure can be adaptively adjusted according to the outer diameter of the workpiece, the lifting structure meets the height requirements of different lathes, and the moving structure facilitates the adjustment of the device position, adapting to various machining scenarios and workpiece specifications; the display integrates control and monitoring functions, supports automatic positioning associated with machine tool number, multi-parameter display and control, is easy to operate, provides real-time feedback on the device status, reduces the difficulty of manual operation, and improves machining efficiency. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0024] Figure 2 This is a top view of the clamping structure of this utility model;

[0025] Figure 3 This is a frontal view of the clamping structure of this utility model;

[0026] Figure 4 This is a schematic diagram of the lifting structure of this utility model;

[0027] Figure 5 This is a schematic diagram of the movable structure of this utility model;

[0028] Figure 6 This utility model Figure 5 A schematic diagram of the structure after removing the fixing plate.

[0029] In the diagram: 1. Frame; 2. Display; 3. Clamping structure; 31. Clamping support platform; 32. Roller; 33. First motor; 34. Transmission box; 35. First transmission box; 351. First lead screw; 352. Gripper; 36. Outer diameter sensor; 37. Second motor; 38. Lifting component; 39. Support plate; 4. Lifting structure; 41. Lifting support platform; 42. Third motor; 43. Coupling; 44. Second transmission box; 45. Flange; 46. Distance sensor; 5. Moving structure; 51. Fixed plate; 52. Slide plate; 53. Connecting slide rod; 54. Support arm; 55. Mounting block; 56. Fourth motor; 57. Second lead screw; 58. Slider; 59. Base plate; 510. Caster wheel. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] Please see Figures 1-6 This utility model provides a technical solution: an auxiliary support device for machining ball screws with a large slenderness ratio on a CNC lathe, which is used for clamping and fixing ball screws with a large slenderness ratio, including:

[0032] Frame 1 is used to connect and fix display 2, lifting structure 4 and moving structure 5. Display 2 and clamping structure 3, as well as lifting structure 4 and moving structure 5 are electrically connected to ensure that clamping structure 3, lifting structure 4 and moving structure 5 can be controlled by display 2 respectively.

[0033] Display 2, mounted on frame 1, is used to control the support device. It integrates a control module and connects to the sensors and motors of each mechanism. It has the following functions: it supports inputting the machine tool number, triggering the servo motor to rotate according to a preset program, and raising the device to the center position of several spindles through ball screw transmission; it can also set parameters such as clamping force and lifting height, and display the device status in real time, including the distance between the distance sensor 46 and the clamping structure 3, parallelism data, levelness, motor operating parameters, and data from the outer diameter sensor 36, which is convenient for operators to monitor. Display 2 can also control the operation of each mechanism, such as adjusting the spacing of the grippers 352 of the clamping structure 3, adjusting the height and levelness of the lifting structure 4, and switching the lifting and lowering of the moving structure 5.

[0034] Frame 1 serves as the basic connection and fixation, integrating and fixing display 2, lifting structure 4, and moving structure 5. Display 2 is mounted on frame 1 and is electrically connected to clamping structure 3, lifting structure 4, and moving structure 5. As the control core, it can support inputting machine tool number, thereby triggering servo motors to rotate according to a preset program. Through ball screw transmission, the device is raised to the center position of the CNC lathe spindle. It can also set parameters such as clamping force and lifting height, and simultaneously display the device status in real time, including the distance between the distance sensor 46 and clamping structure 3, parallelism data, levelness, motor operating parameters, and data from outer diameter sensor 36. It can also operate and control each mechanism, adjusting the spacing of the grippers 352 of clamping structure 3, the height and levelness of lifting structure 4, and the lifting and lowering switching of moving structure 5.

[0035] The clamping structure 3, primarily used to support, clamp, and fix the high slenderness ratio ball screw, is mounted on the frame 1. The clamping structure 3 includes adjustable jaws 352, which can move laterally to clamp and fix the high slenderness ratio ball screw. The clamping structure 3 also includes two rollers 32, located at both ends of the clamping support platform 31 in a V-shape, for supporting the high slenderness ratio ball screw. The clamping structure 3 further includes a clamping support platform 31 mounted on the lifting structure 4, which supports and connects the remaining components of the clamping structure 3. The structure 3 also includes a first transmission box 35, which is used to connect to the first lead screw 351 inside. A transmission box 34 is provided on the outside of the first transmission box 35, which is used to transmit the power of the first transmission box 35 to the first lead screw 351. A first motor 33 is also provided on the transmission box 34. The first lead screw 351 is provided on the inside of the first transmission box 35. The first motor 33 drives the first lead screw 351 to rotate through the transmission box 34. The first lead screw 351 is connected to the gripper 352. In this way, when the first lead screw 351 is rotated by the transmission box 34, the distance between the two grippers 352 can be adjusted, thereby adapting to ball screws with different sizes and large slenderness ratios.

[0036] The clamping structure 3 is mounted on the frame 1. Its core is supported and connected to other components via a clamping support platform 31, which is mounted on the lifting structure 4. Two V-shaped rollers 32 are located at both ends to support the high slenderness ratio ball screw, while the grippers 352 provide clamping and fixation. During operation, the first motor 33 on the transmission box 34 provides power, which is transmitted to the first transmission box 35 via the transmission box 34, thereby driving the first lead screw 351 inside the first transmission box 35 to rotate. Because the first lead screw 351 is connected to the grippers 352, its rotation can cause the grippers 352 to move laterally to adjust the spacing, thus adapting to ball screws of different sizes with high slenderness ratios.

[0037] The clamping structure 3 also includes an outer diameter sensor 36 mounted on the clamping support platform 31. The outer diameter sensor 36 is used to detect the size of the ball screw with a large slenderness ratio. The gap of the gripper 352 is adjustable based on the size detection of the ball screw with a large slenderness ratio by the outer diameter sensor 36. The roller 32 is connected to the clamping support platform 31. A second motor 37 is provided at the bottom of the clamping support platform 31. The second motor 37 drives the lifting member 38. One end of the second motor 37 is connected to the lifting member 38. A support plate 39 is provided on the lifting member 38. The support plate 39 is connected to the first transmission box 35, which allows for fine adjustment of the first transmission box 35.

[0038] In the clamping structure 3, the outer diameter sensor 36, located on the clamping support platform 31, can detect the size of the ball screw with a large slenderness ratio. The spacing adjustment of the grippers 352 is based on the detection result. The roller 32 is connected to the clamping support platform 31, and the bottom of the clamping support platform 31 is equipped with a second motor 37. The second motor 37 can drive the lifting member 38. The lifting member 38 is equipped with a support plate 39, and the support plate 39 is connected to the first transmission box 35. Through this connection and cooperation, the fine adjustment of the first transmission box 35 can be realized.

[0039] A lifting structure 4 is mounted on the frame 1 and connected to the clamping structure 3. The lifting structure 4 is used to adjust the height of the clamping structure 3. The lifting structure 4 includes a lifting support platform 41 mounted on the frame 1. The lifting support platform 41 is equipped with a second transmission box 44 and a distance sensor 46. The distance sensor 46 is used to detect the distance between the clamping structure 3 and the lifting structure 4, ensuring the system can know the distance between them. A flange 45 is provided inside the second transmission box 44, and the flange 45 is connected to the bottom of the clamping support platform 31. Four third motors 42 are provided on the outside of the housing 44. Each third motor 42 is equipped with a coupling 43, which is also spaced four times. One end of the coupling 43 is connected to the second transmission housing 44. The flange 45 is connected to the clamping support platform 31. In this way, the third motor 42 drives the second transmission housing 44 to operate through the coupling 43, thereby adjusting the height of the flange 45. The bottom of the flange 45 is equipped with a screw that can engage with the second transmission housing 44, thereby ensuring that the flange 45 can support the clamping structure 3 and move it up and down.

[0040] The lifting structure 4 is mounted on the frame 1 and connected to the clamping structure 3. It is used to adjust the height of the clamping structure 3. It includes a lifting support platform 41 mounted on the frame 1. The lifting support platform 41 is equipped with a second transmission box 44 and a distance sensor 46. The distance sensor 46 is used to detect the distance between the clamping structure 3 and the lifting structure 4. The inner side of the second transmission box 44 is equipped with a flange 45, which is connected to the bottom of the clamping support platform 31. The outer side is equipped with four third motors 42. Each third motor 42 is equipped with a coupling 43. One end of the coupling 43 is connected to the second transmission box 44. During operation, the third motors 42 drive the second transmission box 44 to rotate through the couplings 43. Since the bottom of the flange 45 is equipped with a screw that meshes with the second transmission box 44, the height of the flange 45 can be adjusted by rotating the second transmission box 44, thereby lifting the clamping structure 3 to move up and down.

[0041] The movable structure 5 is located at the bottom of the frame 1 and extends downwards to move the support device. The movable structure 5 includes a fixed plate 51 within the frame 1, which is fixed to the bottom of the frame 1 and supports the remaining structure of the movable structure 5. Four support legs are located on the outer bottom of the frame 1. When the movable structure 5 is retracted, its height is lower than the height of the support legs. When the movable structure 5 is extended, it lifts the frame 1 to facilitate the movement of the device. The bottom of the fixed plate 51 has two sets of sliding plates 52 and mounting blocks 55. The sliding plates 52 and mounting blocks 55 are used to connect the support arm 54 via a pivot. There are four sets of sliding plates 52 and mounting blocks 55, arranged in a vertically opposite mirror image. The other two sets of sliding plates 52 and mounting blocks 55... A base plate 59 is connected, and a caster wheel 510 is provided at the bottom of the base plate 59. A connecting slide rod 53 is provided in the slide plate 52, and the connecting slide rod 53 can slide laterally in the slide plate 52. Both the connecting slide rod 53 and the mounting block 55 are provided with support arms 54. There are at least four support arms 54, which are connected in pairs by a rotating shaft. A slider 58 is sleeved on the connecting slide rod 53. The slider 58 is used to drive the ends of the two support arms 54 to slide, thereby adjusting the opening and closing of the two sets of support arms 54. A second lead screw 57 is provided on the slider 58. One end of the second lead screw 57 is connected to a fourth motor 56. The fourth motor 56 drives the second lead screw 57 to rotate, and the slider 58 can move on the second lead screw 57. The slider 58 and the second lead screw 57 mesh with each other.

[0042] The movable structure 5 is located at the bottom of the frame 1 and is used for downward extension and movement of the support device. It includes a fixed plate 51 fixed to the bottom of the frame 1, which supports the remaining components of the movable structure 5. Four support legs are provided on the outer side of the bottom of the frame 1. When the movable structure 5 is retracted, its height is lower than the support legs; when extended, it can lift the frame 1 for easy movement. The bottom of the fixed plate 51 has four sets of vertically opposed mirror-image sliding plates 52 and mounting blocks 55. Two other sets of sliding plates 52 and mounting blocks 55 are connected to a base plate 59. The bottom of the base plate 59 is equipped with casters 510. The sliding plates 52... A lateral sliding connecting rod 53 is provided. Support arms 54 are provided on both the connecting rod 53 and the mounting block 55. A slider 58 is sleeved on the connecting rod 53. A second lead screw 57 is provided on the slider 58. One end of the second lead screw 57 is connected to a fourth motor 56. During operation, the fourth motor 56 drives the second lead screw 57 to rotate. Because the slider 58 is engaged with the second lead screw 57, the slider 58 moves with it, thereby driving the end of the support arm 54 to slide. Adjusting the opening and closing of the support arm 54 realizes the extension or retraction of the moving structure 5. The universal wheel 510 completes the movement of the device.

[0043] When used in CNC lathe machining of ball screws with large aspect ratios, the frame 1 serves as the basic support, connecting and fixing the display 2, lifting structure 4, and moving structure 5. These structures are electrically connected to form a collaborative system, with the display 2 serving as the core control unit. The display 2 is connected to the clamping structure 3, lifting structure 4, moving structure 5, and various sensors and motors. It can input the machine tool number to trigger the servo motor to operate according to a preset program, ensuring precise alignment of the device with the CNC lathe spindle center height. It can also set parameters such as clamping force and lifting height, and display real-time data from the distance sensor 46, parallelism, motor operating parameters, and outer diameter sensor 36, as well as the operational control of each mechanism.

[0044] During operation, the moving structure 5 first drives the second lead screw 57 to rotate via the fourth motor 56. Because the slider 58 meshes with the second lead screw 57, the slider 58 moves along the lead screw and drives the end of the support arm 54 to slide. Adjusting the opening and closing of the support arm 54 achieves structural extension, lifts the frame 1 so that the caster wheel 510 contacts the ground, and completes the movement of the device. After moving to the position, the moving structure 5 is retracted, and the bottom support leg of the frame 1 lands to achieve fixation.

[0045] Subsequently, the lifting structure 4 is started, and the third motor 42 drives the second transmission box 44 to operate through the coupling 43. Because the bottom screw of the flange 45 is engaged with the second transmission box 44, the flange 45 adjusts its height with the transmission, thereby lifting the clamping structure 3. The distance sensor 46 detects the distance between the clamping structure 3 and the lifting structure 4 in real time to ensure that the height of the clamping structure 3 is adapted to the processing requirements.

[0046] In clamping structure 3, the clamping support platform 31 supports all components, and the V-shaped rollers 32 at both ends provide initial support for the ball screw with a large slenderness ratio. During clamping, the outer diameter sensor 36 on the clamping support platform 31 detects the screw size. The first motor 33 transmits power to the first transmission box 35 via the transmission box 34, driving the first screw 351 to rotate. Since the first screw 351 is connected to the gripper 352, the gripper 352 moves laterally with the screw rotation. The spacing is adjusted according to the data detected by the outer diameter sensor 36 to achieve precise clamping of screws of different sizes. If fine adjustment is required, the second motor 37 at the bottom of the clamping support platform 31 drives the lifting component 38, which drives the first transmission box 35 to make fine adjustments through the support plate 39, ensuring clamping accuracy.

[0047] Throughout the process, the display 2 provides real-time feedback on the status of each structure, allowing operators to flexibly adjust each step to achieve stable support and precise clamping of the ball screw with a large slenderness ratio, thus meeting the machining requirements of CNC lathes.

[0048] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An auxiliary support device for machining ball screws with a large slenderness ratio on a CNC lathe, used for clamping and fixing ball screws with a large slenderness ratio, characterized in that, include: Framework (1); A display (2) is disposed on the frame (1) and the display (2) is used to control the support device; A clamping structure (3) is provided on the frame (1). The clamping structure (3) includes a jaw (352), which is adjustable and used to clamp and fix the large slenderness ratio ball screw. The clamping structure (3) also includes a roller (32), which is used to support the large slenderness ratio ball screw. A lifting structure (4) is provided on the frame (1) and connected to the clamping structure (3). The lifting structure (4) is used to adjust the height of the clamping structure (3). The movable structure (5) is located at the bottom of the frame (1) and extends downward to move the support device.

2. The auxiliary support device for machining ball screws with large slenderness ratio on CNC lathes according to claim 1, characterized in that: The clamping structure (3) also includes a clamping support platform (31) provided on the lifting structure (4), and the clamping structure (3) also includes a first transmission box (35), and a transmission box (34) is provided on the outside of the first transmission box (35), and a first motor (33) is also provided on the transmission box (34). The first transmission box (35) is provided with a first lead screw (351) on its inner side, and the first motor (33) drives the first lead screw (351) to rotate using the transmission box (34); The first lead screw (351) is connected to the gripper (352).

3. The auxiliary support device for machining ball screws with large slenderness ratio on CNC lathes according to claim 2, characterized in that: The clamping structure (3) also includes an outer diameter sensor (36) disposed on the clamping support platform (31). The outer diameter sensor (36) is used to detect the size of the large slenderness ratio ball screw. The roller (32) is connected to the clamping support platform (31).

4. An auxiliary support device for machining ball screws with large slenderness ratios on CNC lathes according to claim 2 or 3, characterized in that: The bottom of the clamping support platform (31) is provided with a second motor (37), one end of which is connected to a lifting member (38). The lifting member (38) is provided with a support plate (39), which is connected to the first transmission box (35).

5. An auxiliary support device for machining ball screws with large slenderness ratios on a CNC lathe, as described in claim 2 or 3, characterized in that: The lifting structure (4) includes a lifting support platform (41) mounted on the frame (1). The lifting support platform (41) is provided with a second transmission box (44) and a distance sensor (46). The distance sensor (46) is used to detect the distance between the clamping structure (3) and the lifting structure (4). The inner side of the second transmission box (44) is provided with a flange (45). The outer side of the second transmission box (44) is provided with a third motor (42). The third motor (42) is provided with a coupling (43). One end of the coupling (43) is connected to the second transmission box (44).

6. The auxiliary support device for machining ball screws with large slenderness ratio on CNC lathes according to claim 5, characterized in that: The flange (45) is connected to the clamping support platform (31).

7. The auxiliary support device for machining ball screws with large slenderness ratio on CNC lathes according to claim 1, characterized in that: The movable structure (5) includes a fixed plate (51) disposed in the frame (1). The bottom of the fixed plate (51) is provided with two sets of sliding plates (52) and mounting blocks (55). There are four sets of sliding plates (52) and mounting blocks (55), which are arranged in a mirror image of each other. The other two sets of sliding plates (52) and mounting blocks (55) are connected to a base plate (59). The bottom of the base plate (59) is provided with casters (510).

8. The auxiliary support device for machining ball screws with large slenderness ratio on CNC lathes according to claim 7, characterized in that: The slide plate (52) is provided with a connecting slide rod (53).

9. An auxiliary support device for machining ball screws with large slenderness ratios on CNC lathes according to claim 8, characterized in that: Both the connecting slide (53) and the mounting block (55) are provided with support arms (54).

10. An auxiliary support device for machining ball screws with a large slenderness ratio on a CNC lathe according to claim 9, characterized in that: A slider (58) is sleeved on the connecting slide rod (53), and a second lead screw (57) is provided on the slider (58). One end of the second lead screw (57) is connected to a fourth motor (56).

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