Internal thread grinding machine for swing angle of grinding wheel dresser
By designing an internal thread grinder with a grinding wheel trimmer swing angle device with automatic trimming grinding wheel swing angle device, the problems of large errors and long debugging cycles in the prior art are solved, and high precision, high stability and high efficiency processing effects are achieved.
Patent Information
- Application Number
- CN202421962321.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-13
- Publication Date
- 2025-06-17
- Estimated Expiration
- 2034-08-13
AI Technical Summary
When grinding internal threads, existing machine tools manually adjust the swing angle of the thread grinding spindle, which has a large error. When product optimization requires fine-tuning of the angle, the debugging cycle is longer, and the time cost and material consumption are greater.
Design an internal thread grinder with swing angle of the grinding wheel trimmer, including the bed body, workpiece spindle, dresser part and grinding wheel swing angle mechanism. By automatically trimming the swing angle device of the grinding wheel, machining accuracy and stability are ensured.
It achieves high accuracy and high stability when processing various spiral lift angles, and reduces costs and improves processing efficiency.
Smart Images
Figure CN222985885U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of machining, and more specifically relates to an internal thread grinding machine with a swing angle of a grinding wheel dresser. Background Art
[0002] A thread is a continuous raised part with a spiral shape and a specific cross-section made on the surface of a cylindrical or conical matrix. The lead angle of a thread, also called the "lead angle", is the angle between the circumferential line developed from the pitch diameter of the thread and the helix. Threads are classified into cylindrical threads and conical threads according to the shape of their matrix; they are classified into triangular threads, rectangular threads, trapezoidal threads, serrated threads and other special-shaped threads according to their cross-sectional shape (tooth profile). Triangular threads are mainly used for connection, while rectangular, trapezoidal and serrated threads are mainly used for transmission; they are classified into left-handed threads and right-handed threads according to the direction of the helix; they are classified into single-thread threads, double-thread threads and multi-thread threads according to the number of helixes; and they are classified into coarse-thread threads and fine-thread threads according to the size of the teeth, etc.
[0003] At present, most of the machine tools on the market grind the threads of internal thread parts by manually adjusting the swing angle of the thread grinding spindle. The actual angle after adjustment and the required angle are visually observed and compared through an external scale, resulting in a large error. And when fine-tuning the angle is required for product optimization, only the processed workpiece can be repeatedly adjusted and compared, and the debugging experiment period is long, with a large time cost and material consumption. Summary of the Invention
[0004] The main purpose of the utility model is to provide an internal thread grinding machine with a swing angle of a grinding wheel dresser, which can ensure high precision and high stability when machining various helix angles, and can further reduce costs and improve processing efficiency.
[0005] To achieve the above object, the technical solution of the utility model is as follows:
[0006] An internal thread grinding machine with a swing angle of a grinding wheel dresser, comprising a bed body and an X-direction slide plate and a Z-direction slide plate which are arranged perpendicular to each other on the bed body. A workpiece spindle is arranged on the Z-direction slide plate, and a dresser part is arranged on one side of the workpiece spindle. The dresser part includes a dresser and a swing angle device that can control the dresser to rotate. A grinding wheel spindle is arranged on the X-direction slide plate. One end of the grinding wheel spindle is provided with a grinding wheel, and a grinding wheel swing angle mechanism that can drive the grinding wheel spindle to rotate is arranged on one side of the grinding wheel spindle. The grinding wheel swing angle mechanism cooperates with the dresser part to automatically dress the grinding wheel.
[0007] In a specific embodiment of the utility model, the swing angle device includes a swing angle sliding plate fixedly connected to the dresser and an installation fixing plate arranged outside the swing angle sliding plate. The swing angle sliding plate and the installation fixing plate are connected by a rotary center shaft.
[0008] In a specific embodiment of the present utility model, a sliding guide plate for ensuring the rotary sliding accuracy is provided at one end of the mounting fixing plate away from the rotary central axis.
[0009] In a specific embodiment of the present utility model, an angle encoder is provided at one end of the rotary central axis away from the dresser, and the angle encoder can detect the swing angle of the dresser.
[0010] In a specific embodiment of the present utility model, the dresser part further includes a manual adjustment rod and a locking block for controlling the swing angle of the manual adjustment rod.
[0011] In a specific embodiment of the present utility model, a first transmission device is provided between the Z-direction slide plate and the bed body, and the output end of the first transmission device is connected to the Z-direction slide plate.
[0012] In a specific embodiment of the present utility model, a first slide rail is provided parallel to the Z-axis below the Z-direction slide plate, and the Z-direction slide plate can be slidably connected to the bed body through the first slide rail.
[0013] In a specific embodiment of the present utility model, a second transmission device is provided between the X-direction slide plate and the bed body, and the output end of the second transmission device is connected to the X-direction slide plate.
[0014] In a specific embodiment of the present utility model, a probe for automatically performing tool setting operation is further provided on the X-direction slide plate.
[0015] In a specific embodiment of the present utility model, a second slide rail is provided parallel to the X-axis below the X-direction slide plate, and the X-direction slide plate can be slidably connected to the bed body through the second slide rail.
[0016] One of the technical solutions in the above technical solutions of the present utility model has at least the following advantages or beneficial effects:
[0017] By providing a dresser part on one side of the workpiece spindle, a grinding wheel spindle on the X-direction slide plate, and then a grinding wheel swing angle mechanism capable of driving the grinding wheel spindle to rotate on one side of the grinding wheel spindle, and then with the cooperation of the grinding wheel swing angle mechanism and the dresser part, the grinding wheel can be automatically dressed. Therefore, high precision and high stability can be ensured when processing various helix angles, and the processing efficiency can be further improved. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] The following further describes the present utility model in conjunction with the drawings and embodiments;
[0019] Appendix Figure 1The overall structure diagram of an embodiment of the present utility model;
[0020] Appendix Figure 2 The front view of an embodiment of the present utility model;
[0021] Appendix Figure 3 The structure diagram of the trimmer part of an embodiment of the present utility model;
[0022] Appendix Figure 4 The overall structure diagram of another embodiment of the present utility model;
[0023] Appendix Figure 5 The front view of another embodiment of the present utility model. Detailed implementation manners
[0024] The following details the implementation manners of the present utility model. The examples of the implementation manners are shown in the drawings, where the same or similar reference numerals always represent the same or similar elements or elements with the same or similar functions. The implementation manners described below with reference to the drawings are exemplary only for explaining the present utility model and should not be construed as limiting the present utility model.
[0025] In the description of the present utility model, it should be understood that for the orientation description, such as the orientation or positional relationship indicated by up, down, front, back, left, right, etc., is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model.
[0026] In the description of the present utility model, the meaning of several is one or more, the meaning of multiple is two or more, greater than, less than, exceeding, etc. are understood as not including the present number, and above, below, within, etc. are understood as including the present number. If the first and second are described only for the purpose of distinguishing technical features, they should not be construed as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or implicitly indicating the sequence relationship of the indicated technical features.
[0027] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more features.
[0028] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the term "connection" should be understood in a broad sense. For example, it can be a fixed connection or a movable connection, or a detachable connection or a non-detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection or a connection capable of mutual communication; it can be directly connected, or indirectly connected through an intermediate medium, and can be the communication inside two components, indirect communication or the interaction relationship between two components.
[0029] The following disclosure provides many different embodiments or examples for implementing different solutions of the present utility model.
[0030] Refer to the attached Figure 1 to the attached Figure 5 As shown, an internal thread grinding machine with a swing angle of a grinding wheel dresser includes a bed body 1, a workpiece spindle 4, a dresser part 5, and a grinding wheel swing angle mechanism 7. The bed body 1 can adopt a flat bed structure or a T-shaped bed structure (as shown in the attached Figure 4 and the attached Figure 5 ). Four numerical control coordinate axes X / Z / A / C are set on the machine tool, and encoders can be installed on all of them, so as to perform closed-loop control on the coordinate axes of the machine tool.
[0031] In one embodiment of the present utility model, an X-axis slide plate 2 and a Z-axis slide plate 3 perpendicular to each other are provided on the bed body 1. The workpiece spindle 4 adopts an electric spindle and is forced to be cooled at a constant temperature by a cooler, so as to ensure the stable operation and high precision of the workpiece spindle 4. Both the workpiece spindle 4 and the dresser part 5 are located on the upper end surface of the Z-axis slide plate 3, and the dresser part 5 is arranged on one side of the workpiece spindle 4.
[0032] In one embodiment of the present utility model, a grinding wheel spindle 6 is provided on the X-axis slide plate 2. The grinding wheel spindle 6 adopts an electric spindle and is forced to be cooled at a constant temperature by a cooler, so as to ensure the stable operation and high precision of the grinding wheel spindle 6. A grinding wheel 61 is provided at one end of the grinding wheel spindle 6, and a grinding wheel swing angle mechanism 7 capable of driving the grinding wheel spindle 6 to rotate is provided on one side of the grinding wheel spindle 6. The grinding wheel swing angle mechanism 7 cooperates with the dresser part 5 to automatically dress the grinding wheel 61. Therefore, high precision and high stability can be ensured when processing various helix angles, and the processing efficiency can be further improved.
[0033] In one embodiment of the present utility model, the dresser part 5 includes a dresser 51 and a swing angle device 52 capable of controlling the rotation of the dresser 51. The dresser 51 can be automatically compensated. The dresser 51 adopts an electric spindle and is forced to be cooled at a constant temperature by a cooler, so as to ensure the stable operation and high precision of the dresser 51.
[0034] In one embodiment of the present utility model, the swing angle device 52 includes a swing angle sliding plate 521 fixedly connected to the dresser 51 and a mounting fixed plate 522 disposed outside the swing angle sliding plate 521. The swing angle sliding plate 521 and the mounting fixed plate 522 are connected by a rotary center shaft.
[0035] In one embodiment of the present utility model, a sliding guide rail plate 524 for ensuring the rotary sliding accuracy is provided at one end of the mounting fixed plate 522 away from the rotary center shaft. The sliding guide rail plate 524 can ensure the gap between the swing angle sliding plate 521 and the mounting fixed plate 522 during sliding, so as to ensure the accuracy of rotary sliding.
[0036] In one embodiment of the present utility model, an angle encoder 525 is provided at one end of the rotary center shaft away from the dresser 51, so that the swinging angle can be digitally displayed, thereby detecting the swing angle and improving the swing accuracy of the dresser 51.
[0037] In one embodiment of the present utility model, the dresser part 5 further includes a manual adjustment rod 53 and a locking block 54 for controlling the swing angle of the manual adjustment rod 53. During use, after loosening the locking block 54 at the rear end, the swing is performed through the manual adjustment rod 53. After swinging to the specified angle, the rear end locking block 6 is locked. By installing the dresser 51, the swing angle device 52 and the workpiece spindle 4 together, the influence of thermal deformation generated during processing on the processing accuracy can be reduced, and the accuracy of tool setting after dressing the grinding wheel 61 is higher.
[0038] In one embodiment of the present utility model, a first transmission device 8 is provided between the Z-direction slide plate 3 and the bed body 1. The output end of the first transmission device 8 is connected to the Z-direction slide plate 3. A first slide rail 81 is provided parallel to the Z-axis below the Z-direction slide plate 3. The Z-direction slide plate 3 can be slidably connected to the bed body 1 through the first slide rail 81.
[0039] In one embodiment of the present utility model, a second transmission device 9 is provided between the X-direction slide plate 2 and the bed body 1. The output end of the second transmission device 9 is connected to the X-direction slide plate 2. A second slide rail 91 is provided parallel to the X-axis below the X-direction slide plate 2. The X-direction slide plate 2 can be slidably connected to the bed body 1 through the second slide rail 91.
[0040] In one embodiment of the present utility model, a probe 21 capable of performing automatic tool setting operation is further provided on the X-direction slide plate 2. The specific position of the probe 21 can be installed outside the grinding wheel spindle 6, or as shown in the attached Figure 4 and attached Figure 5 between the outer circle grinding wheel spindle 22 and the grinding wheel spindle 6, so as to perform compound grinding of the outer circle, end face and internal thread.
[0041] Although embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the claims and their equivalents.
Claims
1. An internal thread grinding machine with a grinding wheel dresser swing angle, comprising a bed body (1) and an X-direction slide (2) and a Z-direction slide (3) arranged on the bed body (1) and perpendicular to each other, characterized in that: The Z-direction slide plate (3) is provided with a workpiece spindle (4) and a dresser portion (5) arranged on one side of the workpiece spindle (4), the dresser portion (5) comprising a dresser (51) and a swing angle device (52) capable of controlling the dresser (51) to rotate; the X-direction slide plate (2) is provided with a grinding wheel spindle (6), one end of the grinding wheel spindle (6) is provided with a grinding wheel (61), one side of the grinding wheel spindle (6) is provided with a grinding wheel swing angle mechanism (7) capable of driving the grinding wheel spindle (6) to rotate, the grinding wheel swing angle mechanism (7) cooperates with the dresser portion (5) to automatically dress the grinding wheel (61), the swing angle device (52) comprising a swing angle sliding plate (521) fixedly connected to the dresser (51) and a mounting fixing plate (522) arranged outside the swing angle sliding plate (521), the swing angle sliding plate (521) and the mounting fixing plate (522) being connected via a rotary center axis.
2. The internal thread grinder with a grinding wheel dresser swing angle according to claim 1, characterized in that: An end of the mounting and fixing plate (522) away from the rotation center axis is provided with a sliding guide plate (524) for ensuring the rotation sliding accuracy.
3. The internal thread grinder with a grinding wheel dresser swing angle according to claim 1, characterized in that: An angle encoder (525) is provided at one end of the rotary center axis away from the trimmer (51), and the angle encoder (525) can detect the swing angle of the trimmer (51).
4. The internal thread grinder with a grinding wheel dresser swing angle according to claim 1, characterized in that: The trimmer portion (5) further comprises a manual adjustment rod (53) and a locking block (54) for controlling the swing angle of the manual adjustment rod (53).
5. The internal thread grinder with a grinding wheel dresser swing angle according to claim 1, characterized in that: A first transmission device (8) is provided between the Z-direction slide plate (3) and the bed body (1), and an output end of the first transmission device (8) is connected to the Z-direction slide plate (3).
6. The internal thread grinding machine with a grinding wheel dresser swing angle according to claim 5, characterized in that: A first slide rail (81) is provided below the Z-direction slide plate (3) parallel to the Z axis, and the Z-direction slide plate (3) can be slidably connected to the bed body (1) via the first slide rail (81).
7. The internal thread grinder with a grinding wheel dresser swing angle according to claim 1, characterized in that: A second transmission device (9) is provided between the X-direction slide plate (2) and the bed body (1), and an output end of the second transmission device (9) is connected to the X-direction slide plate (2).
8. The internal thread grinding machine with a grinding wheel dresser swing angle according to claim 7, characterized in that: The X-axis slide plate (2) is also provided with a probe (21) capable of performing automatic tool setting operations.
9. The internal thread grinding machine with a grinding wheel dresser swing angle according to claim 7, characterized in that: A second slide rail (91) is provided below the X-axis parallel to the X-axis, and the X-axis slide rail (2) can be slidably connected to the bed body (1) via the second slide rail (91).