Horizontal ab type five-axis machine tool swing head precision alignment jig and adjustment method

Abstract

The application discloses a horizontal AB type five-axis machine tool swing head precision alignment jig and an adjusting method, which comprises a swing head seat, a swing head, a mounting seat, a detection rod and a precision correction surface, wherein the swing head seat is arranged in a horizontal concave structure, the back of the swing head seat is fixed on a machine tool through the precision correction surface, the core shaft of the swing head is fixed horizontally at the opening of the front side of the swing head seat, the mounting seat comprises a first mounting seat and a second mounting seat, one end of the first mounting seat is fixed on the core shaft of the swing head through a plurality of first screws distributed in a ring shape, one end of the second mounting seat is fixed on the other end of the first mounting seat through a plurality of second screws distributed in a ring shape, the second mounting seat is provided with a mounting groove in the axial direction, one end of the detection rod is matched with the mounting groove, and the detection rod comprises an upper bus and a side bus. The application provides a reasonable and effective alignment jig and adjusting method, improves the geometric precision of the machine tool operation, improves the machining precision of the five-axis machine tool S part and improves the economic benefits.

Description

Technical Field

[0001] This invention relates to a head-swivel accuracy alignment fixture and adjustment method for a horizontal AB-type five-axis machine tool. Background Technology

[0002] The existing solution uses a 600*600 marble box, which is leveled relative to the XY plane of the machine tool. Since all six sides of the box are perpendicular, the runout within the YZ plane of the box is measured by oscillating the A-axis, and a dial indicator is used to detect this runout. This is used to indirectly detect the parallelism between the A-axis oscillating head motion axis and the X-axis motion axis. However, this indirect method of detecting the parallelism between the A-axis oscillating head motion axis and the X-axis motion axis includes the perpendicularity errors of the marble box and the machine tool itself, resulting in a relatively large error. Furthermore, the obtained detection values ​​are not easily used for precision adjustment. Summary of the Invention

[0003] The main technical problem solved by this invention is to provide a horizontal AB type five-axis machine tool head-swivel accuracy alignment fixture and adjustment method, which provides a reasonable and effective alignment fixture and adjustment method, improves the geometric accuracy of machine tool operation, improves the machining accuracy of S-parts of five-axis machine tools, and improves economic efficiency.

[0004] To solve the above-mentioned technical problems, the present invention provides a horizontal AB-type five-axis machine tool head alignment fixture, including a head base, a head, a mounting base, a gauge bar, and a precision correction surface. The head base has a horizontal concave structure, and the back of the head base is fixed to the machine tool through the precision correction surface. The spindle of the head is laterally fixed at the opening on the front side of the head base. The mounting base includes a first mounting base and a second mounting base. One end of the first mounting base is fixed to the spindle of the head by a plurality of annularly distributed first screws, and one end of the second mounting base is fixed to the other end of the first mounting base by a plurality of annularly distributed second screws. The second mounting base has an axially arranged mounting groove, and one end of the gauge bar is fitted with the mounting groove. The gauge bar includes an upper generatrix and a side generatrix.

[0005] In a preferred embodiment of the present invention, the precision correction surface is provided in four sets and located at the four corners of the mounting side of the swing head seat.

[0006] In a preferred embodiment of the present invention, the accuracy correction surface includes a forward accuracy correction surface and a lateral accuracy correction surface.

[0007] In a preferred embodiment of the present invention, the mandrel, first mounting base, second mounting base and detector bar of the swing head are arranged concentrically.

[0008] In a preferred embodiment of the present invention, the first mounting base is provided with a wiring groove at the spindle of the swing head.

[0009] A method for adjusting the head alignment fixture of a horizontal AB-type five-axis machine tool, using the head alignment fixture of a horizontal AB-type five-axis machine tool, includes the following steps: a. Fix the first mounting base to the spindle of the oscillating head with the first screw, and rotate the dial indicator on the first mounting base around the A-axis of the oscillating head. Adjust the runout value of the first mounting base to within 0.05mm by adjusting the first screw. b. Fix the second mounting base to the first mounting base with the second screw, insert the test bar into the mounting slot of the second mounting base, place the dial indicator on the test bar and rotate it around the A-axis of the swing head, and adjust the runout value of the test bar to within 0.005mm by adjusting the second screw. c. Place the dial indicator needle on the upper generatrix of the test bar, and record the change in the dial indicator needle value by moving it in the X direction. Then, manually scrape and correct the lateral accuracy correction surface to make the test bar value within 0.005mm. d. Place the dial indicator needle on the side generatrix of the test bar, and record the change in the dial indicator needle value by moving it in the X direction. Then, manually scrape and correct the positive accuracy correction surface to make the test bar value within 0.005mm.

[0010] The beneficial effects of this invention are: the horizontal AB type five-axis machine tool head-swivel accuracy alignment fixture and adjustment method provided by this invention provide a reasonable and effective alignment fixture and adjustment method, which improves the geometric accuracy of machine tool operation; improves the machining accuracy of S-parts of five-axis machine tools; and improves economic efficiency. Attached Figure Description

[0011] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort, wherein: Figure 1 This is an installation diagram of a preferred embodiment of the present invention, which describes a horizontal AB-type five-axis machine tool head-swivel accuracy alignment fixture and adjustment method. Figure 2 yes Figure 1 A magnified view of part S; Figure 3 yes Figure 1 A schematic diagram of the accuracy correction surface; Figure 4 This is a schematic diagram of the motion direction of a preferred embodiment of the horizontal AB type five-axis machine tool head-swivel accuracy alignment fixture and adjustment method of the present invention. Detailed Implementation

[0012] The technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0013] Please see Figure 1 Combination Figures 2-3 As shown, embodiments of the present invention include: A horizontal AB type five-axis machine tool head precision alignment fixture includes a head seat 1, a head 2, a mounting base, a gauge bar 3, and a precision correction surface.

[0014] The oscillating head seat 1 is configured with a horizontal concave structure, and the back of the oscillating head seat 1 is fixed to the machine tool through a precision correction surface to realize the installation of the oscillating head seat 1.

[0015] The spindle of the swing head 2 is fixed laterally at the opening on the front side of the swing head seat 1 and rotates axially around axis A.

[0016] The mounting base includes a first mounting base 4 and a second mounting base 5. One end of the first mounting base 4 is fixed to the spindle of the swing head 2 by a plurality of annularly distributed first screws 6, thus connecting and fixing the first mounting base 4 to the spindle. One end of the second mounting base 5 is fixed to the other end of the first mounting base 4 by a plurality of annularly distributed second screws 7, thus connecting and fixing the second mounting base 5 to the first mounting base 4. The second mounting base 5 has an axially provided mounting groove 8, and one end of the inspection bar 3 is fitted into the mounting groove 8 to connect and fix the inspection bar 3 to the second mounting base 5. The inspection bar 3 is a high-precision 300mm long inspection bar 3 to ensure detection accuracy. At the same time, it ensures that the spindle of the swing head 2, the first mounting base 4, the second mounting base 5, and the inspection bar 3 are concentrically arranged.

[0017] The first mounting base 4 has a wiring groove 9 at the spindle of the swing head 2 to facilitate wiring inside the spindle of the swing head 2.

[0018] The precision correction surfaces are provided in four sets and located at the four corners of the back mounting side of the swing head seat 1. The precision correction surfaces include a positive precision correction surface 10 and a lateral precision correction surface 11. The test bar 3 includes an upper busbar 12 and a side busbar 13. When the dial indicator is mounted on the upper busbar 12 and the side busbar 13 of the test bar 3, the precision is adjusted by scraping the lateral precision correction surface 11 and the positive precision correction surface 10 when the dial indicator value changes through X-axis movement.

[0019] In another embodiment of this application, a method for adjusting the precision alignment fixture of the swivel head 2 of a horizontal AB type five-axis machine tool includes the following steps: a. Fix the first mounting base 4 to the spindle of the swing head 2 with the first screw 6, and rotate the dial indicator on the first mounting base 4 around the A-axis of the swing head 2. Adjust the runout value of the first mounting base 4 to within 0.05mm by adjusting the first screw 6. b. Fix the second mounting base 5 to the first mounting base 4 with the second screw 7, insert the test bar 3 into the mounting slot 8 of the second mounting base 5, place the dial indicator on the test bar 3 and rotate it around the A axis of the swing head 2, and adjust the runout value of the test bar 3 to within 0.005mm by adjusting the second screw 7. The A-axis line, which was originally impossible to measure directly, is simulated to its actual position using a visible probe 3, and is then used for micrometer inspection. This method is convenient to operate and has high accuracy. c. Place the dial indicator needle on the upper generatrix 12 of the test bar 3, and record the change in the dial indicator needle value by moving it in the X direction. Then, manually scrape and correct the lateral accuracy correction surface 11 to make the value of the test bar 3 within 0.005mm. d. Place the dial indicator needle on the side generatrix 13 of the test bar 3, and record the change in the dial indicator needle value by moving it in the X direction. Then, manually scrape and correct the positive accuracy correction surface 10 to make the value of the test bar 3 within 0.005mm. This inspection, recording, and adjustment method ensures that the parallelism between the A-axis and the X-axis is within a reasonable tolerance range.

[0020] In summary, the present invention provides a horizontal AB-type five-axis machine tool head-swivel accuracy alignment fixture and adjustment method, which provides a reasonable and effective alignment fixture and adjustment method, improves the geometric accuracy of machine tool operation, improves the machining accuracy of S-parts on the five-axis machine tool, and improves economic efficiency.

[0021] The above are merely embodiments of the present invention and do not limit the patent scope of the present invention. Any equivalent structural or procedural transformations made based on the content of the present invention specification, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. A horizontal AB-type five-axis machine tool head-swivel accuracy alignment fixture, characterized in that, The system includes a swivel head base, a swivel head, a mounting base, a probe, and a precision correction surface. The swivel head base has a horizontal concave structure. The back of the swivel head base is fixed to the machine tool via the precision correction surface. The spindle of the swivel head is laterally fixed at the opening on the front side of the swivel head base. The mounting base includes a first mounting base and a second mounting base. One end of the first mounting base is fixed to the spindle of the swivel head by a plurality of annularly distributed first screws. One end of the second mounting base is fixed to the other end of the first mounting base by a plurality of annularly distributed second screws. The second mounting base has an axially arranged mounting groove. One end of the probe is fitted with the mounting groove. The probe includes an upper busbar and a side busbar. The adjustment method for the head-swivel accuracy alignment fixture of a horizontal AB type five-axis machine tool includes the following steps: a. Fix the first mounting base to the spindle of the oscillating head with the first screw, and rotate the dial indicator on the first mounting base around the A-axis of the oscillating head. Adjust the runout value of the first mounting base to within 0.05mm by adjusting the first screw. b. Fix the second mounting base to the first mounting base with the second screw, insert the test bar into the mounting slot of the second mounting base, place the dial indicator on the test bar and rotate it around the A-axis of the swing head, and adjust the runout value of the test bar to within 0.005mm by adjusting the second screw. c. Place the dial indicator needle on the upper generatrix of the test bar, and record the change in the dial indicator needle value by moving it in the X direction. Then, manually scrape and correct the lateral accuracy correction surface to make the test bar value within 0.005mm. d. Place the dial indicator needle on the side generatrix of the test bar, and record the change in the dial indicator needle value by moving it in the X direction. Then, manually scrape and correct the positive accuracy correction surface to make the test bar value within 0.005mm.

2. The horizontal AB type five-axis machine tool head-swivel accuracy alignment fixture according to claim 1, characterized in that, The precision correction surface is provided in four sets and located at the four corners of the mounting side on the back of the swing head seat.

3. The horizontal AB type five-axis machine tool head-swivel accuracy alignment fixture according to claim 2, characterized in that, The accuracy correction surface includes a forward accuracy correction surface and a lateral accuracy correction surface.

4. The horizontal AB type five-axis machine tool head-swivel accuracy alignment fixture according to claim 1, characterized in that, The spindle, first mounting base, second mounting base, and probe of the swing head are concentrically arranged.

5. The horizontal AB type five-axis machine tool head-swivel accuracy alignment fixture according to claim 1, characterized in that, The first mounting base has a wiring groove at the spindle of the swing head.

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