Thread composite grinding machine with online detection function

Abstract

The thread composite grinding machine comprises a machine body and a sliding device arranged on the machine body, the sliding device comprises an X-direction sliding plate and a Z-direction sliding plate, the X-direction sliding plate and the Z-direction sliding plate are perpendicular to each other, and the Z-direction sliding plate is provided with a fixed installation part used for installing a workpiece. The X-direction sliding plate is provided with a rotary table capable of performing B1-axis rotation and a thread machining part arranged on the rotary table, the thread machining part comprises a stand column, a first grinding wheel main shaft and a second grinding wheel main shaft, the first grinding wheel main shaft and the second grinding wheel main shaft can perform swing angle machining, and an online detection device is arranged on one side of the thread machining part. On-line measurement and real-time compensation are carried out on the thread profile, so that the production efficiency is improved, and the device belongs to the technical field of thread machining.

Description

Technical Field

[0001] The utility model belongs to the technical field of thread machining, and more specifically relates to a thread composite grinding machine with on-line detection. Background Art

[0002] A thread grinding machine refers to a thread machining machine tool that uses a formed grinding wheel as a grinding tool to machine precision threads. It is mainly used in the production workshops and tool workshops of the machine manufacturing industry, and is most used in the workshops of tool factories and measuring tool factories that produce thread machining tools and thread measuring tools.

[0003] At present, in order to improve the machining accuracy, a profiler is mostly used for detection during the machining process. However, the existing profiler detection requires secondary disassembly and secondary clamping. Therefore, not only can the real-time profile of the machined part not be measured and compensated, but also the production efficiency is seriously affected. Content of the Utility Model

[0004] The main purpose of the utility model is to provide a thread composite grinding machine with on-line detection that can measure and compensate the real-time profile of the machined part and improve the production efficiency.

[0005] To achieve the above object, the technical solution of the utility model is as follows:

[0006] A thread composite grinding machine with on-line detection includes a bed body and a sliding device arranged on the bed body. The sliding device includes an X-direction slide plate and a Z-direction slide plate that are perpendicular to each other. A fixed mounting portion for mounting a workpiece is provided on the Z-direction slide plate. A turntable capable of rotating around the B1 axis and a thread machining portion arranged on the turntable are provided on the X-direction slide plate. The thread machining portion includes a column and a first grinding wheel spindle and a second grinding wheel spindle that can respectively perform angular processing. The second grinding wheel spindle is an external thread grinding wheel spindle. An on-line detection device capable of on-line measuring and real-time compensating the thread profile during the machining process of the thread machining portion is provided on one side of the thread machining portion.

[0007] In a specific embodiment of the utility model, the on-line detection device includes a measuring probe capable of rotating around the B2 axis and a first encoder for detecting the rotation angle of the measuring probe.

[0008] In a specific embodiment of the utility model, the measuring probe is mounted on one side of the column. The measuring probe can be moved to a predetermined position under the drive of the X-direction slide plate, and contour measurement is performed through Z-axis movement and B2-axis swing, so that after the on-line detection device obtains continuous contour data, real-time parameter compensation is performed.

[0009] In a specific embodiment of the present utility model, the sliding device further includes a first transmission mechanism and a second transmission mechanism for driving the X-direction slide plate and the Z-direction slide plate.

[0010] In a specific embodiment of the present utility model, the fixed mounting portion includes a workpiece main shaft and a tailstock arranged corresponding to the workpiece main shaft.

[0011] In a specific embodiment of the present utility model, a grinding wheel dresser is further provided on the side of the fixed mounting portion.

[0012] In a specific embodiment of the present utility model, the thread processing portion further includes a first driving assembly and a second driving assembly arranged on the column. The first grinding wheel main shaft and the second grinding wheel main shaft can respectively perform automatic swing angles under the action of the first driving assembly and the second driving assembly.

[0013] One of the technical solutions in the above technical solutions of the present utility model has at least the following advantages or beneficial effects:

[0014] The present utility model can cooperate the fixed mounting portion with the first grinding wheel main shaft and the second grinding wheel main shaft which can respectively perform swing angle processing and are arranged on the turntable, so as to perform thread processing. Further, by arranging an in-line detection device on one side of the thread processing portion, the thread profile can be measured in-line and compensated in real time during the thread processing, thereby improving the production efficiency. Description of the Drawings

[0015] The following further describes the present utility model in conjunction with the drawings and embodiments;

[0016] Att Figure 1 is the overall structure diagram of an embodiment of the present utility model;

[0017] Att Figure 2 is the structure diagram of another perspective of an embodiment of the present utility model;

[0018] Att Figure 3 is the top view of an embodiment of the present utility model;

[0019] Att Figure 4 is the front view of an embodiment of the present utility model. Detailed Embodiment

[0020] The following details the embodiments of the present utility model. The examples of the embodiments are shown in the drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are only used to explain the present utility model and should not be construed as a limitation to the present utility model.

[0021] In the description of the present utility model, it should be understood that regarding the orientation description, for example, 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 component referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model.

[0022] 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 recited number, and above, below, within, etc. are understood as including the recited number. If there is a description of first and second, it is only for the purpose of distinguishing technical features and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or the sequence relationship of the indicated technical features.

[0023] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood 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.

[0024] 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, it can also be a detachable connection or a non-detachable connection, or an integral connection; it can be a mechanical connection, it can also be an electrical connection or can communicate with each other; it can be directly connected, or indirectly connected through an intermediate medium, it can be the communication inside two components, indirect communication or the interaction relationship between two components.

[0025] The following disclosure provides many different embodiments or examples for implementing different solutions of the present utility model.

[0026] Referring to the attached Figure 1 to the attached Figure 4 As shown, a thread composite grinding machine with on-line detection includes a bed body 1 and a sliding device arranged on the bed body 1. The sliding device includes an X-direction slide plate 2 and a Z-direction slide plate 3 that are perpendicular to each other. A turntable 5 capable of rotating around the B1 axis is provided on the X-direction slide plate 2.

[0027] In an embodiment of the present utility model, a fixed mounting portion 4 for mounting a workpiece is provided on the Z-direction slide plate 3. The fixed mounting portion 4 includes a workpiece main shaft 41 and a tailstock 42 corresponding to the workpiece main shaft 41, so that combined grinding of external threads and internal threads can be performed.

[0028] In one embodiment of the present utility model, a grinding wheel dresser 8 is provided on the side of the fixed mounting portion 4. The grinding wheel dresser 8 can be used according to actual production requirements. After grinding for a period of time, when the grinding wheel becomes deformed or dull, particles will appear on the surface of the grinding wheel. At this time, the grinding wheel dresser 8 can be used to grind the grinding wheel.

[0029] In one embodiment of the present utility model, a thread processing portion 6 is provided on the turntable 5. The thread processing portion 6 includes a column 61, a first grinding wheel spindle 62, a second grinding wheel spindle 63, a first driving assembly 64, and a second driving assembly 65. The first grinding wheel spindle 62 and the second grinding wheel spindle 63 can perform automatic swing angle processing under the action of the first driving assembly 64 and the second driving assembly 65 respectively. The second grinding wheel spindle 63 is an external thread grinding wheel spindle, and thus combined grinding of external threads and internal threads can be achieved.

[0030] In one embodiment of the present utility model, the first grinding wheel spindle 62 is a high-rigidity and high-precision spindle with bearings pre-positioned, specifically designed for long nut parts. The first grinding wheel spindle 62 can not only install a thickened straight shank grinding rod for grinding the inner raceway of the nut deep hole, but also install a specially designed corresponding elbow grinding rod for grinding the inner raceway of a long nut with a large lead, thereby broadening the processing types of nuts that can be processed by this grinding machine.

[0031] When a rough grinding wheel is installed on the second grinding wheel spindle 63, a rough grinding wheel with a small grain size and high hardness can be selected for fast grinding efficiency; during fine grinding, automatic tool change can be performed on the second grinding wheel spindle 63 through the tool magazine, and a fine grinding wheel is installed for grinding. The fine grinding wheel can be selected with a large grain size, low hardness, and good grinding wheel retention, so that the rough and fine machining process requirements of the part can be completed in one clamping, ensuring the machining accuracy and greatly improving the machining efficiency.

[0032] In one embodiment of the present utility model, an on-line detection device 7 for on-line measurement and real-time compensation of the thread profile is provided on one side of the thread processing portion 6 during the processing of the thread processing portion 6. The on-line detection device 7 includes a measuring probe 71 that can rotate around the B2 axis and a first encoder for detecting the rotation angle of the measuring probe 71.

[0033] In one embodiment of the present utility model, the measuring probe 71 is installed on one side of the column 61. The measuring probe 71 is controlled by a servo motor to rotate around the B2 axis, and a damping torque is also provided for the measuring probe 71 during measurement. The measuring probe 71 can be moved to a predetermined position under the drive of the X-axis slide 2, and contour measurement is performed through Z-axis movement and B2-axis swing, so that after the on-line detection device 7 obtains continuous contour data, real-time parameter compensation is performed.

[0034] 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 principles and spirit of the present utility model. The scope of the present utility model is defined by the claims and their equivalents.

Claims

1. A thread compound grinding machine with online detection, comprising a bed (1) and a sliding device arranged on the bed (1), characterized in that: The sliding device comprises an X-axis slide (2) and a Z-axis slide (3) which are perpendicular to each other, the Z-axis slide (3) being provided with a fixed mounting portion (4) for mounting a workpiece, the X-axis slide (2) being provided with a turntable (5) which can rotate along a B1 axis and a thread processing portion (6) arranged on the turntable (5), the thread processing portion (6) comprising a column (61) and a first grinding wheel spindle (62) and a second grinding wheel spindle (63) which can respectively perform swing angle processing, the second grinding wheel spindle (63) being an external thread grinding wheel spindle, and one side of the thread processing portion (6) being provided with an online detection device (7) which can perform online measurement and real-time compensation of a thread profile during the processing of the thread processing portion (6).

2. The thread compound grinder with online detection according to claim 1, characterized in that: The online detection device (7) comprises a measuring probe (71) rotatable about an axis B2 and a first encoder for detecting a rotation angle of the measuring probe (71).

3. The thread compound grinder with online detection according to claim 2, characterized in that: The measuring probe (71) is installed on one side of the column (61). The measuring probe (71) can be moved to a predetermined position driven by the X-axis slide (2) to perform contour measurement through Z-axis movement and B2-axis swing, so that the online detection device (7) can perform real-time parameter compensation after obtaining continuous contour data.

4. The thread compound grinder with online detection according to claim 1, characterized in that: The sliding device also includes a first transmission mechanism (21) and a second transmission mechanism (31) for driving the X-direction slide plate (2) and the Z-direction slide plate (3).

5. The thread compound grinder with online detection according to claim 1, characterized in that: The fixed installation part (4) comprises a workpiece spindle (41) and a tailstock (42) arranged corresponding to the workpiece spindle (41).

6. The thread compound grinding machine with online detection according to claim 5, characterized in that: A grinding wheel dresser (8) is also provided on the side of the fixed installation portion (4).

7. The thread compound grinding machine with online detection according to claim 1, characterized in that: The thread processing part (6) further comprises a first driving assembly (64) and a second driving assembly (65) arranged on the column (61); the first grinding wheel spindle (62) and the second grinding wheel spindle (63) can automatically swing their angles under the action of the first driving assembly (64) and the second driving assembly (65), respectively.

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