Driving disc type inclined hole machining fixing device

Abstract

This utility model relates to the field of auxiliary equipment technology for machining, and discloses a drive disc type oblique hole machining fixing device, including a base, a rotating disk arranged above the base, and multiple positioning grooves evenly distributed along the circumference of the upper surface of the rotating disk. The positioning grooves are radially symmetrically distributed with the axis of the rotating disk as a reference. Each positioning groove is provided with a positioning screw, and the bottom end of the positioning screw is fixedly connected to a fixing base plate. This drive disc type oblique hole machining fixing device, through the combination structure of the circumferentially distributed positioning grooves, positioning screws and internal thread pressure plate, can adjust the clamping position according to the specifications of the drive disc, adapting to workpieces of different diameters and positioning hole distributions. The internal thread pressure plate is tightened by trapezoidal threads, which have higher load-bearing capacity and anti-loosening performance compared with ordinary threads, ensuring that the workpiece is firmly fixed during high-speed cutting and effectively reducing machining errors caused by vibration.

Description

Technical Field

[0001] This utility model relates to the field of auxiliary equipment for mechanical processing, specifically a drive disc type oblique hole processing fixing device. Background Technology

[0002] The drive disc is a key component in a mechanical transmission system, and the machining accuracy of its oblique holes directly affects transmission efficiency and stability.

[0003] The existing patent document CN213827977U provides a fixing device for machining oblique holes in a drive disk. This utility model can easily adjust the tilt angle of the drive disk and eliminates the need for scribing when machining oblique holes in the drive disk, thereby improving machining efficiency.

[0004] However, existing drive disc type oblique hole machining fixing devices have poor versatility in fixing different specifications and models of drive discs. Most traditional fixtures use customized positioning structures, such as fixed-size positioning pins, chucks, or integrated pressure plates, which are only compatible with a single specification of drive disc. When the workpiece diameter, thickness, or positioning hole distribution changes, the entire fixture needs to be replaced, which is time-consuming, labor-intensive, and costly. In addition, although some adjustable fixtures have adjustment mechanisms, the adjustment range is limited, and the adjustment process relies on manual measurement and repeated calibration, which is cumbersome. This not only reduces processing efficiency but also makes it easy to introduce errors due to human factors, and cannot meet the needs of modern manufacturing for efficient and flexible processing. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] The purpose of this utility model is to provide a device for fixing oblique holes in drive discs, so as to solve the problem mentioned in the background art that the existing devices for fixing oblique holes in drive discs have poor versatility when used to fix drive discs of different specifications and models.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution: a drive disk type oblique hole processing and fixing device, including a base, a rotating disk is arranged above the base, and a plurality of positioning grooves are evenly distributed along the circumferential direction on the upper end surface of the rotating disk, the positioning grooves being radially symmetrically distributed with the axis of the rotating disk as a reference;

[0009] Each of the positioning grooves is provided with a positioning screw, the bottom end of which is fixedly connected to a base plate. The outer surface of the positioning screw is provided with a trapezoidal thread and is screwed into an internal thread pressure plate, which is located above the rotating disk.

[0010] As a further improvement to the above solution, a No. 1 side plate is vertically fixed to one side of the upper surface of the base, and a drive motor is fixedly installed on one side of the No. 1 side plate.

[0011] As a further improvement to the above solution, the transmission end of the drive motor passes through the first side plate and is fixedly connected to the rotating disk, and the second side plate is correspondingly provided on the other side of the upper surface of the base.

[0012] As a further improvement to the above scheme, the end of the rotating disk away from the drive motor is connected to the second side plate through a bearing, and two sets of support shafts are symmetrically arranged on the outer side wall of the rotating disk.

[0013] As a further improvement to the above scheme, the second side plate and the first side plate are provided with annular support grooves at corresponding positions, and the support shaft is slidably engaged with the support grooves.

[0014] As a further improvement to the above solution, an electronic angle sensor is coaxially installed in the central hole of the rotating disk, and a control panel is installed on one side of the first side plate.

[0015] As a further improvement to the above solution, the control panel forms a closed-loop control system with the electronic angle sensor and drive motor via an RS485 bus, and a positioning spindle is vertically arranged at the center of the upper surface of the rotating disk.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] 1. This drive disc type inclined hole machining fixing device, through the combination structure of circumferentially distributed positioning grooves, positioning screws and internal thread pressure plates, can adjust the clamping position according to the specifications of the drive disc, and adapt to workpieces with different diameters and positioning hole distributions. The internal thread pressure plate is tightened by trapezoidal threads, which has higher load-bearing capacity and anti-loosening performance than ordinary threads, ensuring that the workpiece is firmly fixed during high-speed cutting and effectively reducing machining errors caused by vibration.

[0018] 2. This drive-disc type inclined hole machining fixing device, through a closed-loop control system composed of a servo drive motor and an electronic angle sensor, can achieve high-precision angle positioning of ±0.01°, replacing the traditional manual adjustment method and significantly improving the machining accuracy of inclined hole angles; RS485 bus communication ensures the real-time and stability of command transmission, supports the CNC system to directly issue angle parameters, greatly shortens the clamping and debugging time, and improves the efficiency of mass production. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0020] Figure 2 This is a three-dimensional structural diagram of the rotating disk of this utility model;

[0021] Figure 3 This is a three-dimensional structural diagram of the positioning screw of this utility model;

[0022] Figure 4 This is an enlarged structural diagram showing a partial detail of the positioning mandrel of this utility model.

[0023] In the diagram: 1. Base; 2. Rotary disk; 3. Positioning groove; 4. Positioning screw; 5. Fixed base plate; 6. Internal thread pressure plate; 7. Side plate No. 1; 8. Drive motor; 9. Side plate No. 2; 10. Support shaft; 11. Support groove; 12. Electronic angle sensor; 13. Control panel; 14. Positioning spindle. Detailed Implementation

[0024] 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.

[0025] Please see Figure 1 - Figure 4 This utility model provides a technical solution: a drive disk type oblique hole processing and fixing device, including a base 1, a rotating disk 2 is arranged above the base 1, and a plurality of positioning grooves 3 are evenly distributed along the circumferential direction on the upper end surface of the rotating disk 2. The positioning grooves 3 are radially symmetrically distributed with the axis of the rotating disk 2 as a reference.

[0026] Each positioning groove 3 is provided with a positioning screw 4. The bottom end of the positioning screw 4 is fixedly connected to a fixed base plate 5. The outer surface of the positioning screw 4 is provided with a trapezoidal thread and is screwed into the internal thread pressure plate 6. The internal thread pressure plate 6 is located above the rotating disk 2.

[0027] The drive disk workpiece is placed on the rotating disk 2, and the center hole of the workpiece is engaged with the positioning mandrel 14 to achieve initial center positioning. Then, according to the distribution of positioning holes on the drive disk, the fixed base plate 5 and the positioning screw 4 are moved into the corresponding positioning groove 3. By rotating the internal thread pressure plate 6, the self-locking characteristic and large load-bearing capacity of the trapezoidal thread are used to press the drive disk workpiece, thus completing the fixation of the workpiece on the rotating disk 2. This structure, through the positioning groove 3 and the movable positioning screw 4, can adapt to drive disks of different diameters and positioning hole distributions, greatly improving versatility.

[0028] A first side plate 7 is vertically fixed on one side of the upper surface of the base 1. A drive motor 8 is fixedly installed on one side of the first side plate 7. The transmission end of the drive motor 8 passes through the first side plate 7 and is fixedly connected to the rotating disk 2. A second side plate 9 is correspondingly provided on the other side of the upper surface of the base 1. The end of the rotating disk 2 away from the drive motor 8 is connected to the second side plate 9 through a bearing. Two sets of support shafts 10 are symmetrically arranged on the outer wall of the rotating disk 2. Annular support grooves 11 are opened at corresponding positions on the second side plate 9 and the first side plate 7. The support shafts 10 and the support grooves 11 are slidably engaged. An electronic angle sensor 12 is coaxially installed in the central hole of the rotating disk 2. A control panel 13 is installed on one side of the first side plate 7. The control panel 13 forms a closed-loop control system with the electronic angle sensor 12 and the drive motor 8 through an RS485 bus. A positioning spindle 14 is vertically arranged at the center of the upper surface of the rotating disk 2.

[0029] After the workpiece is clamped, the required angle parameters for the oblique hole to be processed are input through the control panel 13. The control panel 13 sends a command to the drive motor 8 via the RS485 bus, and the drive motor 8 starts working. Its transmission end drives the rotary disk 2 to rotate. During the rotation, the electronic angle sensor 12 installed in the center hole of the rotary disk 2 monitors the rotation angle of the rotary disk 2 in real time and feeds the angle data back to the control panel 13. The control panel 13 compares the feedback data with the preset angle. If there is a deviation, it immediately sends a correction command to the drive motor 8 to form a closed-loop control, thereby achieving high-precision angle positioning at the ±0.01° level, ensuring that the drive disk is at the precise angle required for the oblique hole processing. During the rotation and processing of the rotary disk 2, the support structure composed of the first side plate 7, the second side plate 9, the support shaft 10, and the annular support groove 11... Playing a crucial role, the drive motor 8 is mounted on the first side plate 7 to provide power to the rotary disk 2. The end of the rotary disk 2 away from the drive motor 8 is connected to the second side plate 9 through a bearing to ensure axial positioning stability. At the same time, the two sets of support shafts 10 on the outer wall of the rotary disk 2 slide and engage with the annular support grooves 11 on the first and second side plates 7 and 9, limiting the radial displacement of the rotary disk 2, effectively enhancing rotational stability, reducing vibration during processing, and ensuring the accuracy and quality of the inclined hole processing. When the rotary disk 2 drives the drive disk workpiece to rotate to the preset angle and locks it stably, the machine tool's processing tool can perform inclined hole processing on the drive disk. After processing one inclined hole, if multiple inclined holes with different angles need to be processed, the above angle adjustment steps can be repeated, and the drive motor 8 drives the rotary disk 2 to rotate to the new target angle again until all inclined hole processing tasks are completed.

[0030] Working Principle: The workpiece is placed on the rotating disk 2, and the center hole of the workpiece mates with the positioning mandrel 14 to achieve initial center positioning. Then, according to the distribution of positioning holes on the driving disk, the fixed base plate 5, along with the positioning screw 4, is moved into the corresponding positioning groove 3. By rotating the internal thread pressure plate 6, utilizing the self-locking characteristic and large load-bearing capacity of the trapezoidal thread, the internal thread pressure plate 6 presses the workpiece on the driving disk, completing the fixation of the workpiece on the rotating disk 2. This structure, through the positioning groove 3 and the movable positioning screw 4, can adapt to driving disks of different diameters and positioning hole distributions, greatly improving versatility. After the workpiece is clamped, the required angle parameters for the oblique hole to be processed are input through the control panel 13. The control panel 13 sends a command to the drive motor 8 via the RS485 bus, and the drive motor 8 starts working, its transmission end driving the rotating disk 2 to rotate. During rotation, the electronic angle sensor 12 installed in the center hole of the rotating disk 2 monitors the rotation angle of the rotating disk 2 in real time and feeds the angle data back to the control panel 13. The control panel 13 compares the feedback data with the preset angle. If there is a deviation, it immediately sends a correction signal to the drive motor 8. Positive commands form a closed-loop control, thereby achieving high-precision angle positioning at the ±0.01° level, ensuring that the drive disk is at the precise angle required for oblique hole machining. During the rotation and machining process of the rotary disk 2, the support structure composed of side plate 7, side plate 9, support shaft 10, and annular support groove 11 plays an important role. The drive motor 8 is installed on side plate 7 to provide power to the rotary disk 2. The end of the rotary disk 2 away from the drive motor 8 is connected to side plate 9 through a bearing to ensure axial positioning stability. At the same time, the two sets of support shafts 10 on the outer wall of the rotary disk 2 are connected to side plate 9. The annular support groove 11 on plate 7 and side plate 9 slides together to limit the radial displacement of the rotary disk 2, effectively enhancing rotational stability, reducing vibration during processing, and ensuring the accuracy and quality of the inclined hole processing. When the rotary disk 2 drives the drive disk workpiece to rotate to the preset angle and locks it stably, the machine tool can perform inclined hole processing on the drive disk. After processing one inclined hole, if multiple inclined holes with different angles need to be processed, the above angle adjustment steps can be repeated, and the drive motor 8 drives the rotary disk 2 to rotate to the new target angle again until all inclined hole processing tasks are completed.

[0031] Finally, it should be noted that the above content is only used to illustrate the technical solution of this utility model, and is not intended to limit the scope of protection of this utility model. Simple modifications or equivalent substitutions made by those skilled in the art to the technical solution of this utility model do not depart from the essence and scope of the technical solution of this utility model.

Claims

1. A driving disc type inclined hole machining fixing device, comprising a base (1), characterized in that: A rotating disk (2) is provided above the base (1). Multiple positioning grooves (3) are evenly distributed along the circumferential direction on the upper surface of the rotating disk (2). The positioning grooves (3) are radially symmetrically distributed with respect to the axis of the rotating disk (2). Each of the positioning grooves (3) is provided with a positioning screw (4), and the bottom end of the positioning screw (4) is fixedly connected to a fixing base plate (5). The outer surface of the positioning screw (4) is provided with a trapezoidal thread and is screwed into an internal thread pressure plate (6). The internal thread pressure plate (6) is located above the rotating disk (2).

2. The driving disc type inclined hole machining fixing device according to claim 1, characterized in that: A first side plate (7) is vertically fixed on one side of the upper surface of the base (1), and a drive motor (8) is fixedly installed on one side of the first side plate (7).

3. The driving disc type inclined hole machining fixing device according to claim 2, characterized in that: The drive end of the drive motor (8) passes through the first side plate (7) and is fixedly connected to the rotating disk (2). The second side plate (9) is provided on the other side of the upper surface of the base (1).

4. The driving disc type inclined hole machining fixing device according to claim 1, characterized in that: The end of the rotating disk (2) away from the drive motor (8) is connected to the second side plate (9) through a bearing, and two sets of support shafts (10) are symmetrically arranged on the outer side wall of the rotating disk (2).

5. The driving disc type inclined hole machining fixing device according to claim 4, characterized in that: The second side plate (9) and the first side plate (7) are provided with annular support grooves (11) at corresponding positions, and the support shaft (10) and the support grooves (11) are slidably engaged.

6. The driving disc type inclined hole machining fixing device according to claim 5, characterized in that: An electronic angle sensor (12) is coaxially installed in the center hole of the rotating disk (2), and a control panel (13) is installed on one side of the first side plate (7).

7. The driving disc type inclined hole machining fixing device according to claim 6, characterized in that: The control panel (13) forms a closed-loop control system with the electronic angle sensor (12) and the drive motor (8) via RS485 bus. A positioning spindle (14) is vertically arranged at the center of the upper surface of the rotating disk (2).

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