A machine tool structure capable of realizing precise taper processing

Abstract

The present invention discloses a machine tool structure capable of realizing precise taper processing, comprising a Z-guide rail and an X-guide rail, a workpiece spindle and a hydrostatic tailstock are arranged on the Z-guide rail, a thimble is arranged on the hydrostatic tailstock, a tool head assembly is arranged on the X-guide rail, a W-direction slide is arranged between the hydrostatic tailstock and the Z-guide rail, a second guide rail is laid on the W-direction slide rail, and a tailstock fine-tuning structure is also arranged, and the tailstock fine-tuning structure drives the hydrostatic tailstock to move along the second guide rail to adjust the processing angle of the workpiece. This machine tool structure capable of realizing precise taper processing installs the workpiece to be processed between the workpiece spindle and the hydrostatic tailstock, and when the workpiece needs to be processed with taper, the hydrostatic tailstock is driven to move along the second guide rail arranged obliquely by the tailstock fine-tuning structure, so that the inclination of the workpiece to be processed relative to the Z direction can be adjusted, thereby realizing taper processing of the workpiece to be processed without adjusting the tool head assembly, which can effectively reduce the difficulty of non-standard taper processing and improve processing accuracy.

Description

Technical Field

[0001] The invention belongs to the field of machining equipment, and more specifically, relates to a machine tool structure capable of realizing precise taper machining. Background Art

[0002] The existing methods for processing taper of parts include small carriage method, method of using control tooling for large and small ends, and method of using template processing. These methods have poor processing accuracy of taper surface, high requirements for matching, and difficult to control operation. It is quite difficult to process non-standard tapers and on-site processing, and it is difficult to achieve high-precision taper matching. Summary of the invention

[0003] The main purpose of the present invention is to provide a machine tool structure that can realize precise taper processing, can realize the processing of non-standard taper parts, and reduce the processing difficulty of taper parts.

[0004] According to an embodiment of the first aspect of the present invention, there is provided a machine tool structure that can realize precise taper machining, including a Z-guide rail and an X-guide rail arranged on the machining surface of the machine tool, the Z-guide rail is provided with a Z-direction slide, the Z-direction slide is provided with a workpiece spindle and a hydrostatic tailstock arranged opposite to each other, the hydrostatic tailstock is provided with a ejector pin, the X-guide rail is provided with a tool head assembly, a W-direction slide sliding along the Z-direction is provided between the hydrostatic tailstock and the Z-guide rail, the W-direction slide is provided with a second guide rail inclined relative to the Z-guide rail, and a tailstock fine-tuning structure is also provided, the tailstock fine-tuning structure drives the hydrostatic tailstock to move along the second guide rail to adjust the machining angle of the workpiece.

[0005] One of the above technical solutions of the present invention has at least one of the following advantages or beneficial effects:

[0006] This machine tool structure that can achieve precise taper processing installs the workpiece to be processed between the workpiece spindle and the hydrostatic tailstock. When the workpiece needs to be processed with taper, the hydrostatic tailstock is driven to move along the inclined second guide rail through the tailstock fine-tuning structure to adjust the inclination of the workpiece to be processed relative to the Z direction, thereby achieving taper processing of the workpiece to be processed without adjusting the tool head assembly, which can effectively reduce the difficulty of non-standard taper processing and improve processing accuracy.

[0007] According to the machine tool structure capable of realizing precise taper machining as described in the embodiment of the first aspect of the present invention, the second guide rail comprises two parallel crossed ball guide rails, and the slope of the second guide rail along the Z axis is 1 / 100.

[0008] According to the machine tool structure that can achieve precise taper processing described in the embodiment of the first aspect of the present invention, the tailstock fine-tuning structure includes a threaded connector arranged at one end of the hydrostatic tailstock, and the threaded connector rotates to drive the slider connected to the W-axis slide to move. A pressure spring is provided between the other end of the hydrostatic tailstock and the W-axis slide, and the end of the threaded connector extends out and is connected to a spiral adjustment button.

[0009] According to the machine tool structure capable of realizing precise taper machining as described in the embodiment of the first aspect of the present invention, the pitch of the threaded connection is 1 mm.

[0010] According to the machine tool structure capable of realizing precise taper machining as described in the embodiment of the first aspect of the present invention, the circumference of the spiral adjustment button is equally divided into 100 grid divisions.

[0011] According to the machine tool structure capable of realizing precise taper machining described in the embodiment of the first aspect of the present invention, an X-axis slide is provided on the X-axis guide rail, a rotating platform is provided on the X-axis slide, and the tool head assembly is installed on the rotating platform.

[0012] According to the machine tool structure that can achieve precise taper processing as described in the embodiment of the first aspect of the present invention, a vertically arranged column is provided on the rotary platform, and an outer cylindrical grinding wheel and an inner hole grinding wheel are respectively installed at both ends of the column, and the axes of the outer cylindrical grinding wheel and the inner hole grinding wheel are perpendicular to the rotation axis of the rotary platform.

[0013] According to the machine tool structure capable of realizing precise taper machining as described in the embodiment of the first aspect of the present invention, the W-direction slide plate is detachably mounted relative to the Z-direction slide plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The present invention is further described below in conjunction with the accompanying drawings and embodiments;

[0015] Figure 1 It is a schematic diagram of the overall structure of the first embodiment of the present invention;

[0016] Figure 2 1 is a schematic diagram of the overall structure of the hydrostatic tailstock in the first embodiment of the present invention;

[0017] Figure 3 1 is a schematic cross-sectional structural diagram of a hydrostatic tailstock in a first embodiment of the present invention;

[0018] Figure 4 Schematic diagram of the bottom structure of the hydrostatic tailstock in the first embodiment of the present invention. DETAILED DESCRIPTION

[0019] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals represent the same or similar elements or elements having the same or similar functions from beginning to end. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0020] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., and orientations or positional relationships indicated are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0021] In the description of the present invention, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood as not including the number itself, and "above", "below", "within" etc. are understood as including the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0022] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more features.

[0023] In the description of the present invention, it should be noted that, unless otherwise clearly stipulated and limited, the term "connection" should be understood in a broad sense. 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, an electrical connection, or mutual communication; it can be a direct connection, or an indirect connection through an intermediate medium, and it can be internal connection between two elements, indirect connection, or an interactive relationship between two elements.

[0024] The following disclosure provides many different embodiments or examples for implementing different solutions of the present invention.

[0025] Reference Figures 1 to 4As shown, a machine tool structure capable of realizing precise taper machining is provided, including a Z-guide rail 100 and an X-guide rail 200 arranged on a machining surface of the machine tool, a Z-guide rail 100 is provided with a Z-slide plate 101, the Z-slide plate 101 is provided with a workpiece spindle 110 and a hydrostatic tailstock 120 arranged opposite to each other, the hydrostatic tailstock 120 is provided with a ejector pin 121, the X-guide rail 200 is provided with a tool head assembly, a W-slide plate 122 sliding along the Z-direction is provided between the hydrostatic tailstock 120 and the Z-guide rail 100, a second guide rail 123 inclined relative to the Z-guide rail 100 is laid on the W-slide plate 122, and a tailstock fine-tuning structure is also provided, the tailstock fine-tuning structure drives the hydrostatic tailstock 120 to move along the second guide rail 123 to adjust the machining angle of the workpiece.

[0026] This machine tool structure that can achieve precise taper processing installs the workpiece to be processed between the workpiece spindle 110 and the hydrostatic tailstock 120. When the workpiece needs to be processed with taper, the hydrostatic tailstock 120 is driven to move along the inclined second guide rail 123 through the tailstock fine-tuning structure, so as to adjust the inclination of the workpiece to be processed relative to the Z direction, thereby achieving taper processing of the workpiece to be processed without adjusting the tool head assembly, which can effectively reduce the difficulty of non-standard taper processing and improve processing accuracy.

[0027] In some embodiments of the present invention, the second guide rail 123 includes two parallel cross ball guide rails, and the slope of the second guide rail 123 along the Z axis is 1 / 100.

[0028] The standard parts of the cross ball guide rail are easy to select and install, and are easy to replace after the cross ball bearing is damaged. There is no need to manually scrape the contact surface, and the accuracy of the W-direction slide plate 122 can be guaranteed for a longer period of time.

[0029] In some embodiments of the present invention, the tailstock fine-tuning structure includes a threaded connector 124 arranged at one end of the hydrostatic tailstock 120, and the threaded connector 124 rotates to drive a slider 126 connected to the W-direction slide 122 to move. A pressure spring 127 is provided between the other end of the hydrostatic tailstock 120 and the W-direction slide 122, and the end of the threaded connector 124 extends out and is connected to a spiral adjustment button 125.

[0030] In some embodiments of the present invention, the pitch of the threaded connector 124 is 1 mm.

[0031] In some embodiments of the present invention, the circumference of the spiral adjustment button 125 is divided into 100 equal divisions.

[0032] In some embodiments of the present invention, an X-axis slide 210 is provided on the X-axis guide rail 200 , a rotating platform 220 is provided on the X-axis slide 210 , and a tool head assembly is installed on the rotating platform 220 .

[0033] In some embodiments of the present invention, a vertically arranged column 230 is provided on the rotating platform 220, and an outer cylindrical grinding wheel 231 and an inner hole grinding wheel 232 are respectively installed at both ends of the column 230, and the axes of the outer cylindrical grinding wheel 231 and the inner hole grinding wheel 232 are perpendicular to the rotation axis of the rotating platform 220.

[0034] In some embodiments of the present invention, the W-direction slide plate 122 is detachably mounted relative to the Z-direction slide plate 101 .

[0035] The workpiece to be processed is installed between the workpiece spindle 110 and the ejector pin 121 of the hydrostatic tailstock 120. The hydrostatic tailstock 120 is provided with a hydrostatic drive device at the rear of the ejector pin 121 in the hydrostatic tailstock 120. The hydrostatic drive device mainly includes a hydraulic cavity fixedly connected to the rear of the ejector pin 121 and located in the hydrostatic tailstock 120. The hydrostatic tailstock 120 hydrostatically drives the tailstock spindle and the ejector pin 121 through hydraulic pressure, so that the tailstock spindle and the ejector pin 121 can realize free rotation and forward and backward extension at the same time, so as to improve the clamping accuracy of the machine tool through hydrostatic drive, which is beneficial to improving the overall stability of the machine tool.

[0036] When the workpiece to be processed needs to be taper processed, the spiral adjustment button 125 located at the tail end of the hydrostatic tailstock 120 is adjusted. The spiral adjustment button 125 drives the hydrostatic tailstock 120 to move 1mm along the Z direction every time it rotates one circle. The spiral adjustment knob is divided into 100 equal divisions according to the circumference, and the accuracy of the hydrostatic tailstock 120 adjustment along the Z direction can be accurately adjusted to 0.01mm.

[0037] The slope of the second guide rail 123 at the bottom of the hydrostatic tailstock 120 is 1 / 100. When the hydrostatic tailstock 120 moves 0.01 mm in the Z direction, the central axis of the hydrostatic tailstock 120 deviates 0.0001 mm in the X direction, and the hydrostatic tailstock 120 can achieve precise adjustment of the taper of 0.1 μm.

[0038] This machine tool structure combines a hydrostatic tailstock 120 that can be clamped to adjust the taper and a rotary platform 220 that can be adjusted circumferentially to perform taper processing. The rotary platform 220 can adjust the tool head assembly installed on the column 230 for external cylindrical processing and internal hole grinding respectively along the axial direction of the X-axis to adapt to various taper angles. During the workpiece processing process, the clamped workpiece does not need to be disassembled and reassembled, and external cylindrical processing of multiple taper surfaces can be performed.

[0039] The W-shaped slide plate 122 is detachably installed relative to the machining surface of the machine tool, which can facilitate the machining of the inner hole of the workpiece without disassembling the workpiece while machining the outer circle of the workpiece, thereby effectively improving the machining accuracy of the product.

[0040] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A machine tool structure capable of realizing precise taper machining, characterized in that: It comprises a Z-guide rail and an X-guide rail arranged on the machining surface of the machine tool, the Z-guide rail is provided with a Z-slide plate, the Z-slide plate is provided with a workpiece spindle and a hydrostatic tailstock arranged opposite to each other, the hydrostatic tailstock is provided with an ejector pin, the X-guide rail is provided with a tool head assembly, a W-slide plate sliding along the Z-direction is provided between the hydrostatic tailstock and the Z-guide rail, a second guide rail inclined relative to the Z-guide rail is laid on the W-slide plate, and a tailstock fine-tuning structure is also provided, the tailstock fine-tuning structure drives the hydrostatic tailstock to move along the second guide rail to adjust the machining angle of the workpiece; The second guide rail includes two parallel crossed ball guide rails, and the slope of the second guide rail along the Z axis is 1 / 100; the tailstock fine-tuning structure includes a threaded connector arranged at one end of the hydrostatic tailstock, and the threaded connector rotates to drive the slider connected to the W-direction slide to move, and a pressure spring is provided between the other end of the hydrostatic tailstock and the W-direction slide, and the end of the threaded connector extends out and is connected with a spiral adjustment button; the pitch of the threaded connector is 1mm; the circumference of the spiral adjustment button is equally divided into 100 grid divisions; the W-direction slide can be detachably installed relative to the Z-direction slide.

2. The machine tool structure capable of realizing taper precision machining according to claim 1, characterized in that: The X-direction guide rail is provided with an X-direction slide, the X-direction slide is provided with a rotating platform, and the tool head assembly is installed on the rotating platform.

3. The machine tool structure capable of realizing taper precision machining according to claim 2, characterized in that: The rotary platform is provided with a vertically arranged column, and an outer cylindrical grinding wheel and an inner hole grinding wheel are respectively installed at both ends of the column. The axes of the outer cylindrical grinding wheel and the inner hole grinding wheel are perpendicular to the rotating axis of the rotary platform.

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