Slope precision thread grinding machine

Abstract

The utility model discloses an inclined plane precision thread grinding machine which comprises a machine table, and the top of the machine table is provided with a plane base and an inclined plane base. The main shaft is fixedly connected to the plane base, and a clamp is detachably and fixedly connected to the output end of the main shaft; the tailstock is connected to the plane base in a sliding mode in the X-axis direction, and the axial lead of a sleeve of the tailstock coincides with the axial lead of the clamp; the base is fixedly connected to the inclined plane base, the base is provided with a top surface, and the top surface is parallel to the plane base; an XY double-coordinate mobile platform, wherein the XY double-coordinate mobile platform is fixedly connected to the top surface of the base; the XY double-coordinate mobile platform is fixedly connected with a rotating shaft with power, the rotating shaft is fixedly connected with a bogie, and the bogie is fixedly connected with a transmission shaft with power. The device is not prone to chip accumulation, easy and rapid to clean and stable in machining precision.

Description

Technical Field

[0001] The utility model relates to the field of thread grinding machines, in particular to an inclined plane precision thread grinding machine. Background Art

[0002] A thread grinding machine mainly consists of a main shaft, a fixture, a grinding wheel, a grinding fluid system, a numerical control system, etc. Among them, the main shaft is the core component of the thread grinding machine, responsible for driving the workpiece to rotate, and the fixture is used to fix the workpiece on the main shaft for processing. The grinding wheel is the tool for grinding, and the grinding fluid system is used to clean and cool the grinding wheel.

[0003] The above components of the existing thread grinding machine are all installed on the top of the machine table. The top of the machine table is a plane with a chip discharge groove. The above components are on a horizontal plane. During the working process, the generated chips fly everywhere and stay on the slide rail of the machine table. The chips will not be automatically discharged and need to be manually cleaned, which is time-consuming and laborious. Moreover, the accumulating chips will splash, affecting the threads being processed and resulting in the production accuracy being affected. Also, the currently used main shaft has no influence on the workpiece during forward rotation, but when the main shaft rotates in reverse, an opposite clearance will be generated, affecting the thread processing accuracy. Summary of the Invention

[0004] In view of this, it is necessary to provide an inclined plane precision thread grinding machine that is not prone to chip accumulation, is simple and quick to clean, has stable processing accuracy, and is convenient to use.

[0005] In order to solve the above technical problems, the technical solution of the utility model is: an inclined plane precision thread grinding machine, comprising:

[0006] A machine table, the top of the machine table has a flat base and an inclined base;

[0007] A main shaft, the main shaft is fixedly connected to the flat base, and a fixture is detachably and fixedly connected to the output end of the main shaft;

[0008] A tailstock, the tailstock is slidably connected to the flat base along the X-axis direction, and the axis line of the sleeve of the tailstock coincides with the axis line of the fixture;

[0009] A base, the base is fixedly connected to the inclined base, the base has a top surface, and the top surface is parallel to the flat base;

[0010] An XY two-coordinate moving platform, the XY two-coordinate moving platform is fixedly connected to the top surface of the base; a power-driven rotating shaft is fixedly connected to the XY two-coordinate moving platform, a swivel frame is fixedly connected to the rotating shaft, and a power-driven transmission shaft is fixedly connected to the swivel frame;

[0011] The axis line of the rotating shaft is parallel to the Y axis. When the bogie is parallel to the top surface, the axis line of the transmission shaft is parallel to the X axis;

[0012] A grinding wheel, which is fixedly connected to the transmission shaft.

[0013] Furthermore, the main shaft is a backlash-free main shaft.

[0014] Furthermore, the fixture is a three-jaw chuck.

[0015] Furthermore, the rotating shaft is a first motorized spindle with its own power.

[0016] Furthermore, the transmission shaft is a second motorized spindle with its own power.

[0017] Furthermore, the included angle between the flat base and the inclined base is 35 - 75°.

[0018] Furthermore, there is a chip evacuation groove along the X-axis direction between the flat base and the inclined base.

[0019] Furthermore, it further includes a grinding wheel repair spindle. The axis line of the grinding wheel repair spindle is parallel to the X axis, and a grinding wheel repair wheel for repairing the grinding wheel is fixedly connected to the grinding wheel repair spindle.

[0020] Furthermore, the grinding wheel repair spindle is a third motorized spindle with its own power.

[0021] Compared with the prior art, the present utility model has the following beneficial effects: The grinding wheel of this device is installed on an inclined machine table, and it is not easy for chips to accumulate on this inclined machine table, and it is simple and fast to clean the accumulated chips; thereby ensuring that the machining accuracy is not affected by the accumulated chips and ensuring the stability of the machining accuracy; this device also adopts a backlash-free main shaft to ensure that there is no gap when the main shaft reversely pushes the tool, and to ensure the machining accuracy of the thread.

[0022] To make the above and other purposes, features and advantages of the present utility model more obvious and understandable, the following specifically enumerates preferred embodiments and, in conjunction with the accompanying drawings, makes a detailed description as follows. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is the front view of the embodiment of the present utility model.

[0024] Figure 2 It is the top view of the embodiment of the present utility model.

[0025] Figure 3 It is the structural schematic diagram of the inclined machine table and its upper components in the embodiment of the present utility model.

[0026] In the figure: 1 - machine tool, 11 - flat base, 12 - inclined base, 13 - chip removal groove, 14 - base, 2 - main shaft, 3 - tailstock, 4 - XY two - coordinate moving platform, 41 - rotating shaft, 5 - bogie, 51 - transmission shaft, 6 - grinding wheel, 7 - grinding wheel dressing main shaft. Detailed implementation manners

[0027] To further elaborate on the technical means and effects adopted by the present utility model to achieve the predetermined invention purpose, the following, in combination with the attached drawings and preferred embodiments, details the specific implementation manners, structures, features and their effects of the present utility model as follows.

[0028] As Figures 1-3 shown, an inclined - plane precision thread grinding machine includes: a machine tool 1, a main shaft 2, a tailstock 3, an XY two - coordinate moving platform 4, a grinding wheel 6 and a grinding wheel dressing main shaft 7.

[0029] The top of the machine tool 1 has a flat base 11 and an inclined base 12. The top surface of the flat base 11 is flat, and the top surface of the inclined base 12 is inclined. In this embodiment, the included angle between the inclined surface and the flat surface is 45 degrees; there is a chip removal groove 13 along the X - axis direction between the flat base 11 and the inclined base 12. During processing, the chips that fall on the inclined base automatically slide into the chip removal groove, eliminating the need for manual cleaning, being convenient to use and not prone to chip accumulation on the inclined base.

[0030] The main shaft 2 is fixedly connected to the top surface of the flat base 11. In order to ensure that the forward and reverse rotations of the main shaft do not affect the processing accuracy of the thread, in this embodiment, the main shaft 2 adopts a zero - clearance main shaft. A zero - clearance main shaft is a key component used in a mechanical transmission system, which can achieve precise locking of the main shaft and power transmission, while eliminating the possible clearances and noises generated during the locking process of traditional main shafts. Thereby ensuring the processing accuracy of the thread.

[0031] A fixture is detachably and fixedly connected to the output end of the main shaft 2. In this embodiment, the fixture is a three - jaw chuck (not shown in the figure).

[0032] The tailstock 3 is slidably connected to the top surface of the flat base along the X - axis direction. The axis line of the sleeve of the tailstock 3 coincides with the axis line of the fixture; the fixture and the tailstock cooperate to achieve stable clamping of the optical bar. The tailstock is a conventional device in the art, and its structural functions and clamping are well - known techniques in the art.

[0033] A base 14 is fixedly connected to the top surface of the inclined base 12. The base 14 has a top surface, and this top surface is parallel to the top surface of the flat base 11.

[0034] The XY two-coordinate moving platform 4 is fixedly connected to the top surface of the base; the XY two-coordinate moving platform 4 can move simultaneously in the X-axis and Y-axis directions; a powered rotating shaft 41 is fixedly connected to the XY two-coordinate moving platform 4, a bogie 5 is fixedly connected to the rotating shaft 41, and a powered transmission shaft 51 is fixedly connected to the bogie 5; a grinding wheel 6 is fixedly connected to the transmission shaft 51.

[0035] In this embodiment, the rotating shaft 41 is a self-powered first motorized spindle, and the transmission shaft 51 is a self-powered second motorized spindle.

[0036] The rotating shaft 41 drives the rotating frame 5 to rotate. In this embodiment, the rotating frame 5 can make the grinding wheel 6 rotate around the axis of the rotating shaft, and its rotation angle is between 0 - 45°.

[0037] When the axis line of the rotating shaft 41 is parallel to the Y-axis and the bogie 5 is parallel to the top surface of the base 14, the axis line of the transmission shaft 51 is parallel to the X-axis.

[0038] The axis line of the dressing spindle 7 is parallel to the X-axis, and a dressing grinding wheel (not shown in the figure) for repairing the grinding wheel 6 is fixedly connected to the dressing spindle 7. In this embodiment, the dressing spindle is a self-powered third motorized spindle.

[0039] The above are only the preferred embodiments of the present invention, and do not impose any form of limitation on the present invention. Although the present invention has been disclosed above with the preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some changes or modifications to the above-disclosed technical content to form equivalent embodiments with equivalent changes, but as long as the technical content of the present invention is not departed from, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A precision inclined-plane thread grinding machine, characterized in that, Including: A machine tool, the top of which has a flat base and an inclined base; A main shaft, which is fixedly connected to the flat base, and a fixture is detachably and fixedly connected to the output end of the main shaft; A tailstock, which is slidably connected to the flat base along the X-axis direction, and the axis line of the sleeve of the tailstock coincides with the axis line of the fixture; A base, which is fixedly connected to the inclined base, and the base has a top surface that is parallel to the flat base; An XY two-coordinate moving platform, which is fixedly connected to the top surface of the base; a powered rotating shaft is fixedly connected to the XY two-coordinate moving platform, a bogie is fixedly connected to the rotating shaft, and a powered transmission shaft is fixedly connected to the bogie; The axis line of the rotating shaft is parallel to the Y-axis, and when the bogie is parallel to the top surface, the axis line of the transmission shaft is parallel to the X-axis; A grinding wheel, which is fixedly connected to the transmission shaft.

2. The precision inclined-plane thread grinding machine according to claim 1, wherein: The main shaft is a backlash-free main shaft.

3. The precision inclined-plane thread grinding machine according to claim 2, wherein: The fixture is a three-jaw chuck.

4. The precision inclined-plane thread grinding machine according to claim 1, wherein: The rotating shaft is a self-powered first motorized spindle.

5. The precision inclined-plane thread grinding machine according to claim 1, wherein: The transmission shaft is a self-powered second motorized spindle.

6. The precision inclined-plane thread grinding machine according to claim 1, wherein: The included angle between the flat base and the inclined base is 35-75°.

7. The precision inclined-plane thread grinding machine according to claim 1, wherein: There is a chip discharge groove along the X-axis direction between the flat base and the inclined base.

8. The precision inclined-plane thread grinding machine according to claim 1, wherein: It further includes a grinding wheel repair main shaft, the axis line of which is parallel to the X-axis, and a grinding wheel repair wheel for repairing the grinding wheel is fixedly connected to the grinding wheel repair main shaft.

9. The precision inclined-plane thread grinding machine according to claim 8, wherein: The grinding wheel repair main shaft is a self-powered third motorized spindle.

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