An automatic tapping device with self-adapting adjustment for micro aperture

Abstract

The utility model discloses a kind of self-adapting adjustment automatic tapping device suitable for micro aperture, belong to tapping machine field, including support;Power mechanism, sleeve is set in the outer wall of support;Power mechanism includes the mounting bracket of sleeve being set in the outer wall of support;Respectively set in the outer wall of mounting bracket two sides bearing frame and servo motor one;Rotatable through bearing frame's output rod;Two respectively set in the top of output rod and servo motor one output end transmission wheel;Transmission connection is realized between two transmission wheels through transmission belt;Transfer case.The self-adapting adjustment automatic tapping device suitable for micro aperture of the utility model, through two cross arrangement's driving element, utilize the precision adjusting structure of bidirectional screw rod, slide bar and transverse carriage etc., in combination with the accurate control of servo motor, four acting pieces can be realized accurate, flexible adjustment in horizontal and vertical, can adapt to the complex position distribution of micro hole on different workpieces, substantially improve the precision and adaptability of tapping position adjustment.

Description

Technical Field

[0001] This utility model belongs to the field of tapping machines, specifically relating to an adaptive adjustment automatic tapping device suitable for small hole diameters. Background Technology

[0002] In the field of machining, tapping is a common process used to machine internal threads on workpieces. However, traditional tapping devices have many shortcomings when tapping small holes.

[0003] On the one hand, the tapping position adjustment is inconvenient and it is difficult to accurately adapt to the position distribution of micro-holes on different workpieces, resulting in limited tapping accuracy. On the other hand, the transmission structure is relatively fixed, and the flexibility and adaptability of power transmission are poor when dealing with different tapping requirements, affecting tapping efficiency and quality. In addition, there is a technological gap in the existing devices in terms of synchronous adjustment of multiple tapping positions and power adaptation, which cannot efficiently meet the refined and diversified needs of micro-hole tapping. To solve the above problems, an adaptive adjustment automatic tapping device suitable for micro-holes is proposed. Utility Model Content

[0004] In view of one or more of the above-mentioned defects or improvement needs of the prior art, the present invention provides an adaptive adjustment automatic tapping device suitable for small apertures, which has the advantage of adaptive adjustment.

[0005] To achieve the above objectives, this utility model provides an adaptive adjustment automatic tapping device suitable for small apertures, including a support; The power mechanism is sleeved on the outer wall of the bracket; the power mechanism includes a mounting frame sleeved on the outer wall of the bracket; a support frame and a servo motor respectively set on both sides of the outer wall of the mounting frame; an output rod that can rotatably pass through the support frame; two transmission wheels respectively set on the top of the output rod and the output end of the servo motor; the two transmission wheels are connected by a transmission belt. The transfer case is located at the bottom of the output rod; the transfer case has four output shafts. The assembly frame is fitted onto the outer wall of the transfer case. Two drive components are arranged crosswise on the assembly frame; The four actuators can slide through the two drive components, and the four actuators are connected to the four output shafts of the transfer case via connecting components. Two drive components are used to drive four actuators to expand and contract laterally and longitudinally, respectively, so as to adjust the tapping position of the four actuators; the connecting component is used to realize the transmission cooperation between the transfer case and the actuators, and the actuators are used to perform tapping.

[0006] Furthermore, the driving component includes four rectangularly distributed fixed plates mounted on the assembly frame; a slide rod disposed between two of the fixed plates; a bidirectional screw rod rotatably passing through the other two slide rods at both ends; two transverse moving frames respectively sleeved on the outer walls of the bidirectional screw rod and the slide rod, the transverse moving frames being threadedly connected to the bidirectional screw rod and slidingly engaged with the slide rod; a sliding hole opened at the top of the transverse moving frame; and a second servo motor disposed on the outer wall of one of the fixed plates and whose output end is connected to one end of the bidirectional screw rod.

[0007] Furthermore, the active component includes a sliding column that can slide through two opposing transverse frames; the sliding column can slide in two sliding holes; two stops respectively disposed on the upper and lower sides of the sliding column and can slide on the outer walls of the two transverse frames; and a tapping tool that can rotate through the sliding column and the stops in sequence at the top.

[0008] Furthermore, the connector includes two universal joints respectively disposed on the input shaft of the tapper and one of the output shafts of the transfer case; a sleeve disposed on the outer wall of one of the universal joints; and a cross shaft disposed on the outer wall of the other universal joint and slidably inserted into the sleeve.

[0009] In summary, the beneficial effects of the above-described technical solutions conceived by this utility model compared with the prior art include: This utility model discloses an adaptive adjustment automatic tapping device suitable for micro-diameter holes. Through two cross-arranged drive components, it utilizes a precision adjustment structure composed of a bidirectional screw, a slide bar, and a transverse frame, combined with the precise control of a servo motor, to achieve precise and flexible adjustment of the four working components in the horizontal and vertical directions. It can adapt to the complex position distribution of micro-holes on different workpieces, greatly improving the accuracy and adaptability of tapping position adjustment. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the exploded structure of this utility model; Figure 3 This is a bottom view of the functional component of this utility model; Figure 4 This is a schematic diagram of the drive component structure of this utility model; Figure 5 This is a schematic diagram of the structure of the functional component of this utility model.

[0011] In all the accompanying drawings, the same reference numerals denote the same technical features, specifically: 1. Bracket; 2. Power mechanism; 21. Mounting bracket; 22. Bearing frame; 23. Servo motor one; 24. Output rod; 25. Transmission wheel; 26. Transmission belt; 3. Transfer case; 4. Assembly frame; 5. Drive component; 51. Fixing plate; 52. Slide rod; 53. Bidirectional screw; 54. Transverse frame; 55. Sliding hole; 56. Servo motor two; 6. Actuating component; 61. Slide column; 62. Stop block; 63. Tapping tool; 7. Connecting component; 71. Universal joint; 72. Sleeve; 73. Cross shaft. Detailed Implementation

[0012] 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.

[0013] Please see Figure 1-5 This utility model provides an adaptive adjustment automatic tapping device suitable for small apertures, including a bracket 1; The power mechanism 2 is fitted onto the outer wall of the support 1. The power mechanism 2 includes a mounting frame 21, a support frame 22, a servo motor 23, an output rod 24, a transmission wheel 25, and a transmission belt 26. The mounting frame 21, fitted onto the outer wall of the support 1, serves to support and install other components of the power mechanism 2, connecting the power mechanism 2 and the support 1 as a whole to ensure the stability of power transmission. Its structure must possess sufficient strength and adaptability to accommodate the shape of the support 1 and the weight of subsequent components. The support frame 22 is located on one side of the outer wall of the mounting frame 21, supporting the output rod 24 and providing a rotational support point for the output rod 24, ensuring the coaxiality and stability of the output rod 24 during rotation, allowing power to be smoothly transmitted from the servo motor 23 to the output rod 24. The servo motor 23, as a power source, has its output end connected to the transmission wheel 25, converting electrical energy into mechanical energy to power the entire tapping device. Compared to ordinary motors, the servo motor 23 can precisely control the speed and rotation angle, accurately adjusting the power output according to tapping requirements to ensure the tapping process... Stable rotation speed and precise power output during the process improve tapping quality, especially for tapping small holes, where precise control of rotation speed and power is crucial. The output rod 24 rotatably passes through the support frame 22, transmitting the power of the power mechanism 2 to the transfer case 3. The stability and precision of its rotation directly affect the working effect of the subsequent transfer case 3 and the action component 6. The output rod 24 needs to have good mechanical properties, such as high strength and wear resistance, to withstand the torque and wear during power transmission. The two transmission wheels 25 are respectively set on the top of the output rod 24 and the output end of the servo motor 23, and are connected by the transmission belt 26 to form a belt drive system. The belt drive has a certain buffering and vibration absorption capacity, which can play a role in power transmission and shock absorption between the servo motor 23 and the output rod 24, avoiding rigid impact during power transmission, protecting the motor and output shaft and other components, and at the same time, it can compensate for the installation error between the two shafts to a certain extent, ensuring stable power transmission and providing stable power input for subsequent tapping operations. The transfer case 3 is located at the lower part of the output rod 24. The transfer case 3 has four output shafts. Its function is to distribute the single power transmitted from the power mechanism 2 and convert it into power output from the four output shafts to provide tapping power for the four action parts 6. The internal design of the transfer case 3, through reasonable gear transmission or other transmission structure, realizes the uniform distribution or on-demand distribution of power, ensuring that the four action parts 6 can obtain stable and suitable power when tapping, meeting the needs of multiple tapping positions working at the same time, improving tapping efficiency, and is especially suitable for scenarios where small-diameter tapping needs to be performed at different positions on the workpiece at the same time. Assembly frame 4 is fitted onto the outer wall of transfer case 3; Two drive components 5 are arranged crosswise on the assembly frame 4; The four actuators 6 can slide through the two drive components 5 respectively, and the four actuators 6 are respectively connected to the four output shafts of the transfer case 3 through the connecting component 7. Two driving components 5 are used to drive four actuators 6 to expand and contract laterally and longitudinally, respectively, so as to adjust the tapping position of the four actuators 6; the connecting component 7 is used to realize the transmission cooperation between the transfer case 3 and the actuators 6, and the actuators 6 are used to perform tapping.

[0014] Specifically, refer to Figure 4The driving component 5 includes four fixed plates 51, a slide rod 52, a bidirectional screw 53, a transverse frame 54, a sliding hole 55, and a servo motor 56. The four fixed plates 51 are rectangularly distributed and mounted on the assembly frame 4, providing a mounting base for components such as the slide rod 52 and the bidirectional screw 53, serving as positioning and support, ensuring the relative position stability between the components of the driving component 5, and enabling the slide rod 52 and the bidirectional screw 53 to be accurately installed, providing guidance and support for the movement of the transverse frame 54. The slide rod 52 is located between two of the fixed plates 51 and slides in cooperation with the transverse frame 54, providing guidance for the lateral movement of the transverse frame 54, ensuring the stability of the transverse frame 54. 4. During the movement, it moves in a straight line to avoid deviation, thus ensuring the accuracy of the position adjustment of the actuator 6; the slide rod 52 needs to have high straightness and surface smoothness to reduce the friction when the transverse frame 54 moves, making the adjustment process smoother; the two ends of the bidirectional screw 53 can rotatably pass through the other two fixed plates 51, and the outer wall of the screw is fitted with the transverse frame 54, and the transverse frame 54 is threadedly connected to the bidirectional screw 53; when the bidirectional screw 53 rotates, it can drive the two transverse frames 54 to move in opposite or the same direction according to the screw thread direction and rotation direction, so as to realize the adjustment of the lateral or longitudinal position of the actuator 6. This allows for adjustment of the tapping position. The thread accuracy of the bidirectional screw 53 directly affects the movement accuracy of the transverse frame 54, which is crucial for precise adjustment of the tapping position in small-diameter holes. High-precision machining processes are required to ensure thread quality. The transverse frame 54 is sleeved on the outer wall of the bidirectional screw 53 and the slide rod 52, threadedly connected to the bidirectional screw 53 and slidably engaged with the slide rod 52. Under the rotation of the bidirectional screw 53 and the guiding action of the slide rod 52, it achieves lateral movement, thereby driving the action element 6 to move and adjust the tapping position. The top of the transverse frame 54 has a sliding hole 55 to accommodate the slide post 61 of the action element 6 and to provide space for the sliding of the slide post 61, allowing the action element 6 to move. It can move with the transverse frame 54 and can also be finely adjusted within the sliding hole 55, improving the flexibility of tapping position adjustment; the second servo motor 56 is set on the outer wall of one of the fixed plates 51, and its output end is connected to one end of the bidirectional screw 53, providing power for the rotation of the bidirectional screw 53; the second servo motor 56 can precisely control the rotation angle and speed, thereby precisely controlling the moving distance and speed of the transverse frame 54, realizing precise adjustment of the tapping position of the action part 6, meeting the high position accuracy requirements of micro-diameter tapping; through the precise control of the second servo motor 56, different tapping positions can be quickly and accurately adjusted, improving the adaptive adjustment capability of the device.

[0015] Specifically, refer to Figure 5The actuating component 6 includes a sliding column 61, two stops 62, and a tapping tool 63. The sliding column 61 can slide through the two opposing transverse frames 54 and slide within the two sliding holes 55, serving as a connection and positioning element. This allows the actuating component 6 and the driving component 5 to form a relatively movable whole. Under the action of the driving component 5, the actuating component 6 moves with the transverse frames 54 and can be finely adjusted within the sliding holes 55 according to tapping requirements, ensuring the accuracy of the tapping position. The sliding column 61 needs to have good sliding performance and strength to withstand the force during tapping and frequent sliding adjustments. The two stops 62 are respectively located on the upper and lower sides of the sliding column 61 and can slide on the outer walls of the two transverse frames 54, serving as a limiting element to prevent the sliding column 61 from dislodging from the sliding holes 55 of the transverse frames 54. The tapping tool 63 ensures the stability of the connection between the actuator 6 and the drive 5. Simultaneously, during the sliding of the slide column 61, it moves with the slide column 61, limiting the range of movement of the slide column 61 to prevent excessive sliding from affecting tapping accuracy. The upper part of the tapping tool 63 passes through the slide column 61 and the stop block 62, and is the component that directly performs the tapping operation. Its lower tapping structure, such as the tap, contacts the workpiece, and under power transmission, performs micro-diameter tapping on the workpiece. The accuracy and wear resistance of the tapping tool 63 directly determine the tapping quality. For micro-diameter tapping, high-precision, high-hardness tapping tools are required to ensure dimensional accuracy and surface quality. Furthermore, the appropriate tapping tool 63 must be adapted according to different workpiece materials and tapping requirements.

[0016] Specifically, refer to Figure 5 The connecting component 7 includes two universal joints 71, a sleeve 72, and a cross shaft 73. The two universal joints 71 are respectively mounted on the input shaft of the tapper 63 and one of the output shafts of the transfer case 3. Utilizing the universal transmission characteristics of the universal joints 71, power transmission can be achieved within a certain angle range, adapting to changes in the angle between the tapper 63 and the output shaft of the transfer case 3 during position adjustment. This ensures stable power transmission to the tapper 63, even if the tapper 63 is not aligned with the output shaft of the transfer case 3 due to position adjustment, effectively transmitting power and improving the adaptability and stability of power transmission of the device. The sleeve 72 is mounted on the outer wall of one of the universal joints 71. The cross shaft 73 is mounted on the outer wall of another universal shaft 71 and can be slidably inserted into the sleeve 72. The two work together to form a telescopic transmission structure. During the adjustment of the position of the tapper 63, when the distance between the tapper 63 and the output shaft of the transfer case 3 changes, the cross shaft 73 can slide inside the sleeve 72 to compensate for the distance change, ensuring that the power transmission between the universal shafts 71 is not affected by the distance change. At the same time, the cooperation between the cross shaft 73 and the sleeve 72 can also assist the universal shaft 71 in realizing the power transmission of angle changes to a certain extent, further optimizing the adaptability and stability of the power transmission, ensuring that the tapper 63 can obtain stable power input at different positions and successfully complete the tapping operation.

[0017] Working principle The servo motor 23 in the power mechanism 2 serves as the power source, using electrical energy to drive its output shaft to rotate. Through the belt drive system composed of the transmission wheel 25 and the transmission belt 26, the power is transmitted to the output rod 24, which then transmits the power to the transfer case 3. The transfer case 3 uses a reasonable transmission structure, such as gear transmission, to distribute the single input power into the power output of four output shafts. Then, it is transmitted to the tapping tool 63 of the action part 6 through the connecting part 7, so that the tapping tool 63 obtains rotational power and has the conditions to tap the workpiece. The buffering and vibration absorption characteristics of the belt drive and the precise control of the servo motor 23 ensure the stability and accuracy of the power output, providing reliable power guarantee for tapping small-diameter holes. Drive component 5 drives bidirectional screw 53 to rotate via servo motor 2 56. Based on the principle of threaded transmission, when bidirectional screw 53 rotates, transverse frame 54 connected to it by thread will move linearly along slide rod 52, which acts as a guide. The sliding hole 55 on the transverse frame 54 drives the sliding column 61 of the action component 6 to move, realizing the adjustment of the action component 6 in the horizontal or vertical direction. Since the two drive components 5 are arranged in a cross manner, they are responsible for the horizontal and vertical position adjustment respectively. By controlling the rotation direction and angle of the servo motor 2 56 of the two drive components 5, the position of the four action components 6 in the plane can be precisely controlled, realizing the adaptive adjustment of the tapping position. During the adjustment process, the universal joint 71 of the connecting component 7 can adapt to the angle change between the tapper 63 and the output shaft of the transfer case 3, and the sleeve 72 and the cross shaft 73 can adapt to the distance change, ensuring that the power is continuously and stably transmitted during the position adjustment process, so that the tapper 63 can still obtain power normally to perform tapping operation in the new position. Once the tapping position is adjusted, the tapper 63 begins to rotate under the power transmitted by the power mechanism 2. Simultaneously, it moves closer to and contacts the workpiece (not detailed in the external feeding mechanism description, but achieved through other auxiliary mechanisms or its own gravity). The tapping structure at the bottom of the tapper 63, such as a tap, cuts the workpiece, creating a tiny internal thread. During the tapping process, the power mechanism 2 continuously provides stable power to ensure the tapper 63 rotates at a stable speed. The drive component 5 maintains the tapper 63 in a stable position, and the connecting component 7 ensures smooth power transmission. All components work together to complete the tapping operation for the tiny hole.

[0018] 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 adaptive adjustment automatic tapping device suitable for micro-aperture holes, characterized in that, Including the support (1); The power mechanism (2) is sleeved on the outer wall of the bracket (1); the power mechanism (2) includes a mounting frame (21) sleeved on the outer wall of the bracket (1); a bearing frame (22) and a servo motor (23) respectively set on both sides of the outer wall of the mounting frame (21); an output rod (24) that can rotatably pass through the bearing frame (22); two transmission wheels (25) respectively set on the top of the output rod (24) and the output end of the servo motor (23); the two transmission wheels (25) are connected by a transmission belt (26); Transfer case (3) is located at the lower part of output rod (24); transfer case (3) has four output shafts; The assembly frame (4) is fitted onto the outer wall of the transfer case (3); Two drive components (5) are arranged crosswise on the assembly frame (4); The four actuators (6) can slide through the two drive members (5) respectively, and the four actuators (6) are connected to the four output shafts of the transfer case (3) through the connectors (7); Two drive components (5) are used to drive four actuators (6) to expand and contract laterally and longitudinally, respectively, so as to adjust the tapping position of the four actuators (6); the connecting component (7) is used to realize the transmission cooperation between the transfer case (3) and the actuators (6), and the actuators (6) are used to perform tapping.

2. The adaptive adjustment automatic tapping device suitable for micro-aperture as described in claim 1, characterized in that, The drive unit (5) includes four rectangular fixed plates (51) arranged on the assembly frame (4); a slide rod (52) arranged between two of the fixed plates (51); a bidirectional screw (53) with both ends rotatably passing through the other two slide rods (52); two transverse frames (54) respectively sleeved on the outer walls of the bidirectional screw (53) and the slide rod (52), the transverse frames (54) being threadedly connected to the bidirectional screw (53) and slidingly engaged with the slide rod (52); a sliding hole (55) opened on the top of the transverse frame (54); and a second servo motor (56) arranged on the outer wall of one of the fixed plates (51) and whose output end is connected to one end of the bidirectional screw (53).

3. The adaptive adjustment automatic tapping device suitable for micro-apertures according to claim 2, characterized in that, The active component (6) includes a sliding column (61) that can slide through two opposing transverse frames (54); the sliding column (61) can slide in two sliding holes (55); two stops (62) respectively set on the upper and lower sides of the sliding column (61) and can slide on the outer wall of the two transverse frames (54); and a tapping tool (63) that can rotate through the sliding column (61) and the stops (62) in sequence at the top.

4. The adaptive adjustment automatic tapping device suitable for micro-aperture as described in claim 3, characterized in that, The connector (7) includes two universal joints (71) respectively disposed on the input shaft of the tapper (63) and one of the output shafts of the transfer case (3); a sleeve (72) disposed on the outer wall of one of the universal joints (71); and a cross shaft (73) disposed on the outer wall of the other universal joint (71) and slidably inserted into the sleeve (72).

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