Spindle swing angle mechanism

Abstract

The utility model discloses a spindle swing angle mechanism which comprises a stand column and at least one grinding wheel spindle arranged on the side face of the stand column, and a first driving motor and a swing angle device capable of adjusting the position of the grinding wheel spindle under the action of the first driving motor are arranged on the stand column. The angle swinging device comprises a guide band-type brake plate, a swinging mandrel and a swinging sliding plate capable of rotating around the swinging mandrel, the end, away from the swinging mandrel, of the swinging sliding plate is slidably connected with the guide band-type brake plate, the grinding wheel spindle is arranged on the swinging sliding plate, and a band-type brake device used for fixing the position of the swinging sliding plate is arranged on one side of the guide band-type brake plate. The swing sliding plate can circumferentially slide on the stand column and the guide band-type brake plate along the swing mandrel through the first driving motor, the swing angle precision and the feed accuracy are improved, and the positions of the swing sliding plate and the grinding wheel spindle are fixed through the band-type brake device.

Description

Technical Field

[0001] This utility model belongs to the field of mechanical processing technology, and more specifically relates to a spindle tilting mechanism. Background Technology

[0002] Most thread finishing machine tools grind threads on threaded parts by manually adjusting the tilt angle of the thread grinding spindle and using a secondary spindle mounted on the grinding wheel spindle box for interpolation and shaping. In order to meet the shaping requirements of complex surfaces, thread grinding machines with automatic tilt angle of the grinding wheel spindle and automatic tilt angle of the dresser spindle mounted on the headstock spindle box have emerged to achieve high-precision shaping of complex surfaces.

[0003] However, the current thread grinding machine's tilting mechanism has design flaws in its locking and clamping method, and the locking and clamping strength is insufficient, resulting in poor tilting accuracy and spindle feed accuracy, making it difficult to achieve sustainable and stable batch processing. Utility Model Content

[0004] The main purpose of this utility model is to provide a spindle swing angle mechanism that can improve the braking strength, swing angle accuracy and feed accuracy.

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

[0006] A spindle tilting mechanism includes a column and at least one grinding wheel spindle disposed on the side of the column. The column is provided with a first drive motor and a tilting device that can adjust the position of the grinding wheel spindle under the action of the first drive motor. The tilting device includes a guide brake plate, a tilting spindle, and a tilting sliding plate that can rotate around the tilting spindle. The end of the tilting sliding plate away from the tilting spindle is slidably connected to the guide brake plate. The grinding wheel spindle is disposed on the tilting sliding plate. A brake device for fixing the position of the tilting sliding plate is provided on one side of the guide brake plate.

[0007] According to a first aspect of the present invention, the swing angle device further includes a connecting rod disposed perpendicular to the swing sliding plate, one end of the connecting rod being connected to the output end of the first drive motor, and the other end of the connecting rod being connected to the swing sliding plate.

[0008] According to a first aspect of the present invention, the connecting rod is provided with at least two first rolling bearings.

[0009] According to a first aspect of the present invention, an angle encoder is provided at the end of the swing spindle away from the swing sliding plate.

[0010] According to a first aspect of the present invention, at least two second rolling bearings are sleeved on the swing mandrel, and the two second rolling bearings are respectively disposed at both ends of the swing mandrel.

[0011] According to a first aspect of the present invention, the guide brake plate has an arc-shaped plate at one end away from the swing spindle, one side of the swing sliding plate is connected to the arc-shaped plate, and the other side of the swing sliding plate is provided with a sliding connection assembly.

[0012] According to a first aspect of the present invention, the grinding wheel spindle includes a second drive motor arranged horizontally and a machining shaft arranged at the output end of the second drive motor, and a machining grinding wheel is provided at the other end of the machining shaft.

[0013] According to a first aspect of the present invention, the brake device includes a driving device disposed on the column, which can cause the guide brake plate to move closer to or further away from the swing sliding plate.

[0014] According to a first aspect of the present invention, the guide brake plate is a steel component.

[0015] One of the above-described technical solutions of this utility model has at least one of the following advantages or beneficial effects:

[0016] This invention enables the swinging sliding plate to slide circumferentially along the swinging spindle on the column and guide brake plate via the first drive motor, thereby ensuring that the grinding wheel spindle can swing to the required angle in one go, improving the swing angle accuracy and the feed accuracy. Furthermore, the brake device enhances the brake strength to fix the position of the swinging sliding plate and the grinding wheel spindle. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0018] Appendix Figure 1 This is a partial cross-sectional view of one embodiment of the present invention;

[0019] Appendix Figure 2 This is an overall structural diagram of one embodiment of the present utility model;

[0020] Appendix Figure 3 This is a front view of one embodiment of the present invention;

[0021] Appendix Figure 4 This is a cross-sectional view along the AA direction of one embodiment of the present invention;

[0022] Appendix Figure 5 This is a structural diagram of a dual grinding wheel spindle according to an embodiment of the present invention;

[0023] Appendix Figure 6 This is a structural diagram of a dual grinding wheel spindle according to an embodiment of the present invention. Detailed Implementation

[0024] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying 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 with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0025] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0026] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is used in the description, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0027] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" and "second" may explicitly or implicitly include one or more features.

[0028] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the term "connection" should be interpreted broadly. For example, it can be a fixed connection or a movable connection, a detachable connection or a non-detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection or a connection that can communicate with each other; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two elements, an indirect connection, or an interaction between two elements.

[0029] The following disclosure provides many different implementation methods or examples for different solutions to implement this utility model.

[0030] See attached document Figure 1 To be continued Figure 6As shown, a spindle tilting mechanism includes a column 1, a grinding wheel spindle 2 disposed on the side of the column 1, a first drive motor 3 disposed on the column 1, a tilting device 4 that can adjust the position of the grinding wheel spindle 2 under the action of the first drive motor 3, and a brake device 5 disposed on one side of the guide brake plate 41.

[0031] In one embodiment of this utility model, the swing angle device 4 includes a guide brake plate 41, a swing spindle 43, a swing sliding plate 42 that can rotate around the swing spindle 43, and a connecting rod 44 that is perpendicular to the swing sliding plate 42. The sliding surface and the brake surface of the guide brake plate 41 are both hardened. One end of the connecting rod 44 is connected to the output end of the first drive motor 3, and the other end of the connecting rod 44 is connected to the swing sliding plate 42. That is, a motor plus screw drive method is adopted, which not only improves the load-bearing capacity, but also further increases the driving force.

[0032] In one embodiment of this utility model, the grinding wheel spindle 2 is mounted on the swing sliding plate 42. The end of the swing sliding plate 42 away from the swing spindle 43 is slidably connected to the guide brake plate 41. The guide brake plate 41 is made of high-performance steel with double-sided heat treatment, which not only ensures smooth sliding but also improves the brake strength and reduces the difficulty of the process.

[0033] In one embodiment of this utility model, the grinding wheel spindle 2 includes a horizontally arranged second drive motor 21 and a machining shaft 22 disposed at the output end of the second drive motor 21. A machining grinding wheel is disposed at the other end of the machining shaft 22. (Refer to the attached drawing.) Figure 5 Appendix Figure 6 By adding a second tilting device, it can be used on rotary table-type internal and external thread grinding machines, and the grinding wheel spindles on both sides can be combined in multiple ways to complete the processing of parts with multiple process requirements.

[0034] When one grinding wheel spindle and the other grinding wheel spindle are both internal thread grinding wheel spindles, rough grinding and fine grinding of internal threads can be completed; when one grinding wheel spindle and the other grinding wheel spindle are both external thread grinding wheel spindles, rough grinding and fine grinding of external threads can be completed; when one grinding wheel spindle is an internal thread grinding wheel spindle and the other grinding wheel spindle is an external thread grinding wheel spindle, combined grinding of internal and external threads can be completed; when one grinding wheel spindle and the other grinding wheel spindle are both thread grinding wheel spindles and external cylindrical grinding wheel spindles, combined grinding of thread grinding and external cylindrical end face grinding can be completed.

[0035] In one embodiment of this utility model, the guide brake plate 41 has an arc-shaped plate at one end away from the swing spindle 43, one side of the swing sliding plate 42 is connected to the arc-shaped plate, and the other side of the swing sliding plate 42 is provided with a sliding connection assembly. The sliding connection assembly includes a horizontally arranged slide plate 81 and a slider 82 slidably connected to the side of the slide plate 81. The grinding wheel spindle 2 and the slider 82 are detachably connected, so that the grinding wheel spindle 2 can perform horizontal reciprocating motion under the action of the second drive motor 21.

[0036] In one embodiment of this utility model, an angle encoder 6 is provided at the end of the swing spindle 43 away from the swing sliding plate 42, so that the accuracy of the swing angle can be known through the feedback of the angle encoder 6, and the swing angle can be closed-loop controlled by the angle encoder 6 to ensure the swing angle accuracy.

[0037] In one embodiment of this utility model, two first rolling bearings 45 are spaced apart on the connecting rod 44, and two second rolling bearings 7 are sleeved on the swing spindle 43. The two second rolling bearings 7 are respectively disposed at both ends of the swing spindle 43, thereby further improving the swing accuracy and load-bearing capacity of the swing spindle 43.

[0038] In one embodiment of this utility model, the brake device 5 is used to fix the position of the swing sliding plate 42 and the grinding wheel spindle 2. The brake device 5 includes a driving device provided on the column 1. The driving device can make the guide brake plate 41 move closer to or away from the swing sliding plate 42. The spindle swing angle mechanism can make the swing sliding plate 42 slide circumferentially along the swing spindle 43 on the column 1 and the guide brake plate 41 through the first drive motor 3, thereby ensuring that the grinding wheel spindle can swing to the required angle in one go, improving the swing angle accuracy and the feed accuracy. The accuracy of the swing angle is known through the feedback of the angle encoder 6, and then the brake device 5 is used to lock and tighten it to fix the position of the swing sliding plate 42 and the grinding wheel spindle 2.

[0039] Although embodiments of the present invention have been shown and described, those skilled in the art will understand 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 claims and their equivalents.

Claims

1. A spindle tilting mechanism, characterized in that, The device includes a column (1) and at least one grinding wheel spindle (2) disposed on the side of the column (1). The column (1) is provided with a first drive motor (3) and a swing angle device (4) that can adjust the position of the grinding wheel spindle (2) under the action of the first drive motor (3). The swing angle device (4) includes a guide brake plate (41), a swing spindle (43), and a swing sliding plate (42) that can rotate around the swing spindle (43). The end of the swing sliding plate (42) away from the swing spindle (43) is slidably connected to the guide brake plate (41). The grinding wheel spindle (2) is disposed on the swing sliding plate (42). A brake device (5) for fixing the position of the swing sliding plate (42) is provided on one side of the guide brake plate (41).

2. The spindle tilting mechanism according to claim 1, characterized in that: The swing angle device (4) further includes a connecting rod (44) arranged perpendicular to the swing sliding plate (42). One end of the connecting rod (44) is connected to the output end of the first drive motor (3), and the other end of the connecting rod (44) is connected to the swing sliding plate (42).

3. The spindle tilting mechanism according to claim 2, characterized in that: At least two first rolling bearings (45) are provided at intervals on the connecting rod (44).

4. The spindle tilting mechanism according to claim 1, characterized in that: An angle encoder (6) is provided at the end of the swing spindle (43) away from the swing sliding plate (42).

5. The spindle tilting mechanism according to claim 4, characterized in that: At least two second rolling bearings (7) are sleeved on the swing spindle (43), and the two second rolling bearings (7) are respectively disposed at both ends of the swing spindle (43).

6. The spindle tilting mechanism according to claim 1, characterized in that: The guide brake plate (41) has an arc-shaped plate at one end away from the swing spindle (43), the swing sliding plate (42) is connected to the arc-shaped plate on one side, and a sliding connection assembly is provided on the other side of the swing sliding plate (42).

7. The spindle tilting mechanism according to claim 1, characterized in that: The grinding wheel spindle (2) includes a second drive motor (21) arranged horizontally and a machining shaft (22) arranged at the output end of the second drive motor (21). The other end of the machining shaft (22) is provided with a machining grinding wheel.

8. The spindle tilting mechanism according to claim 1, characterized in that: The brake device (5) includes a drive device installed on the column (1), which can cause the guide brake plate (41) to move closer to or further away from the swing sliding plate (42).

9. The spindle tilting mechanism according to claim 8, characterized in that: The guide brake plate (41) is a steel component.

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