TWM560356U - Fixture correction device - Google Patents

Abstract

A fixture correcting device, includes a workbench uses the first fixing element to fix the supporting unit. The multi-axis rotary platform is arranged on the workbench, the multi-axis rotary platform has a hole of rotary platform and is connected with a multi-axis rotary platform control unit, and the multi-axis rotary platform control unit controls the rotation of the multi-axis rotary platform. The relay base plate is arranged on the multi-axis rotating platform and the supporting unit, and the multi-axis rotating platform and the relay base plate are fixed by the second fixing element. The fixture is fixed on the relay base plate by the third fixing element. Milling machine spindle connected to the knife handle and milling machine spindle control unit, the milling machine spindle control unit for controlling the movement of the milling spindle, and through the knife handle connected with the milling spindle to detect the fixture. Therefore, the invention utilizes the multi-axis rotary platform to realize the fixture correction, which effectively improves the speed and precision of the calibration.

Description

Fixture correction device

The present invention provides a correction device, and in particular a correction device for a jig.

The calibration method of the traditional fixture will be equipped with a dial gauge on the spindle of the milling machine. The gauge is used to measure the offset of the fixture by manual means. If there is an offset, the position of the fixture is manually adjusted and then repeated. Multiple inspections and adjustments, but this method is time consuming and labor intensive. In the milling machine, it is divided into single-spindle milling machine and multi-spindle milling machine. Among them, in the application of single-spindle milling machine, most of them are manually adjusted the position of the fixture, and some of them are not through the offset after obtaining the offset. Correction, but adjust the program coordinate system of the milling machine to correct the orientation of the fixture. Although this method can compensate for the machining dimensional error on the workpiece caused by the offset of the fixture, the correction is not corrected with the mechanical coordinate system of the milling spindle. This results in easy to leave more knives on the workpiece after processing, and this method can not meet the requirements of the industry with high requirements for the knives, such as: mobile phone casing.

In addition, in the application of the multi-spindle milling machine, for example, in the multi-spindle milling machine, 8 milling machines are used to simultaneously machine 8 workpieces, because the mechanical relationship between the main shaft and the main shaft is fixed, and the workpieces are simultaneously performed. During processing, these workpieces are placed on the fixture, and each fixture is placed in exactly the same position to produce the same precision product. However, the results of manual calibration are easily affected by environmental constraints, and it is difficult to ensure the accuracy and reliability of the calibration results. In addition, in the multi-spindle milling machine, a plurality of jigs are arranged in a matrix, wherein the jigs around the periphery of the center jig are not well corrected during calibration, and the jigs and central treatments after the correction are four weeks. The posture of the tool will be different, so the manual manual correction method is difficult, and it is difficult to ensure that the corrected posture is the same as other fixtures, thereby affecting the processing result.

The calibration process of the traditional jig, as shown in the conventional calibration method shown in FIG. 1A to FIG. 1B, first manually operates the milling machine spindle near the side W of the jig until the dial gauge hits the point A of the side W of the jig and records the dial gauge. The value is then operated to move the spindle of the milling machine along the X-axis direction to point B. The deviation direction of the fixture can be obtained by the value of the dial gauge, and the direction of the fixture can be manually adjusted. For example, tapping the fixture with a rubber hammer Move to the appropriate position offset, and repeat point A to point B, and adjust the fixture through the dial gauge value jump condition and turn to the correct position; next, manually operate the milling machine spindle near the side L of the fixture, Until the dial gauge hits point C and records the dial gauge value, then the spindle of the milling machine is moved along the Y-axis direction to point D. By the value of the dial gauge, the offset direction of the fixture can be obtained and manually adjusted again. The direction of the fixture, such as tapping the fixture with a rubber hammer, repeating points C to D, and correcting the fixture through the dial gauge value and turning to the correct position; next, manually operating the milling machine The spindle is close to the side of the fixture H Until the dial gauge hits the E point and records the dial gauge value, then move the spindle of the milling machine along the Z axis to the point F. By the value of the dial gauge, the offset direction of the fixture can be obtained and manually adjusted. Fixtures, such as tapping the fixture with a rubber hammer, shifting the fixture to the appropriate position, and repeating points E to F, and correcting the fixture by dialing the value of the dial gauge and turning to the correct position Finally, the jig is locked, and the above-mentioned steps and correction methods are used again to correct the jig that has not been corrected until all the jigs have been corrected. Therefore, before the milling machine needs to manually adjust the fixture to align the X-axis, Y-axis and Z-axis direction of the milling machine spindle, it often takes a lot of time, especially the multi-spindle milling machine processing, and multiple fixtures before processing Correction is not only time-consuming, but also the correction error of each fixture is different, which affects the processing effect.

The main purpose of this creation is to provide a fixture correction device, which mainly utilizes a multi-axis rotary platform to realize automatic correction of the fixture, which can effectively improve the speed and accuracy of the correction, and ensure the reliability of the calibration result.

According to the above object, the present invention provides a fixture correction device, comprising: a plurality of support units disposed on a workbench and fixed to the workbench by a plurality of first fixing members; the multi-axis rotary platform is disposed on the workbench The multi-axis rotating platform has a plurality of rotating platform holes and is connected with the multi-axis rotating platform control unit, the multi-axis rotating platform control unit is used for controlling the rotation of the multi-axis rotating platform; the relay bottom plate is disposed on the multi-axis rotating platform and supporting On the unit, the relay bottom plate has a plurality of relay floor through holes, and the plurality of second fixing elements are inserted through each of the relay floor through holes and each of the rotating platform holes to fix the multi-axis rotating platform and the relay bottom plate; The fixture is arranged on the relay base plate, and the fixture is fixed on the relay base plate by using a plurality of third fixing elements; and the milling machine spindle is connected with the cutter head and the milling machine spindle control unit, and the milling machine spindle control unit is used for controlling the movement of the milling machine spindle And the position of the jig is detected by a knife handle connected to the spindle of the milling machine.

According to the above object, the present invention also discloses a method for using a fixture correction device, comprising: controlling a spindle movement of a milling machine by using a milling spindle control unit, and detecting a position of the fixture through a cutter coupled to a spindle of the milling machine, and according to the detected The position calculation fixture offset; the milling spindle control unit transmits the calculated offset to the multi-axis rotary platform control unit; the multi-axis rotary platform control unit rotates the multi-axis rotary platform according to the offset and simultaneously drives the relay base plate , and then adjust the position of the jig; and when the jig reaches the position moved according to the offset, the fixing base plate and the supporting unit are fixed by the fixing fixture, and are fixed to the relay floor through hole and the rotating platform hole Remove the fixed components and remove the multi-axis rotating platform.

In summary, the present invention provides a fixture correcting device and method, which rotates according to a multi-axis rotating platform and drives the fixture on the relay base plate to achieve the function of calibration, and saves manpower for correction, effectively solving single-axis milling machines and many more. The difficulty encountered by the axis milling machine in the fixture correction.

Advantages and features of the present invention, as well as methods for achieving the same, will be more readily understood by reference to the exemplary embodiments and the accompanying drawings. However, the present invention may be embodied in different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided to provide a thorough and complete and complete disclosure of the scope of the present invention.

Please refer to FIG. 2 and FIG. 3 , which are schematic diagrams of a fixture correction device and a fixture correction system according to a preferred embodiment of the present invention. FIG. 3 is a schematic diagram of the fixture correction device according to FIG. Correct the flow of the system. The jig correction device 1 mainly comprises a work table 2, a support unit 3, a multi-axis rotary platform 4, a relay base plate 5, a jig 6, a milling machine spindle 7 and a tool holder 8; and a plurality of supports are arranged on the work table 2 The unit 3 and the support unit 3 and the table 2 are fixed by the first fixing member 91. The other table 2 further has a multi-axis rotating platform 4 disposed between the plurality of supporting units 3 and disposed on the table 2 but not fixed to the table 2, wherein the multi-axis rotation The platform 4 has a plurality of rotating platform holes 41 and is connected with the multi-axis rotating platform control unit 42, and the multi-axis rotating platform control unit 42 is for controlling the rotation of the multi-axis rotating platform 4, and in addition, the multi-axis rotating platform 4 is detachable. It is not necessary to configure a multi-axis rotating platform 4 on each jig correcting device 1; the relay bottom plate 5 is disposed on the multi-axis rotating platform 4 and the plurality of supporting units 3, wherein the relay bottom plate 5 transmits through a plurality of supports The unit 3 is supported without coming into contact with the multi-axis rotating platform 4, and the relay floor 5 has a plurality of relay floor through holes 51, and the second fixing element is used between the relay floor 5 and the multi-axis rotating platform 4. The plurality of relay floor through holes 51 and the plurality of rotation platform holes 41 are inserted through the plurality of relay floor through holes 51 to fix the multi-axis rotation platform 4 and the relay base plate 5. In the present creation, the first fixing member 91 is a screw, a bolt or a rivet, and the second fixing member 92 is a pin or a pin.

In addition, the jig 6 in the jig correcting device 1 is disposed on the relay base plate 5, and the jig 6 is fixed to the relay base plate 5 by a plurality of third fixing members (not shown in the drawings). The third fixing component is a screw, a bolt or a rivet; and the milling machine spindle 7 in the fixture calibration device 1 is disposed on the jig 6, and the milling machine spindle 7 is connected to the tool holder 8 and to the milling spindle control unit 71, wherein The milling machine spindle 7 in the fixture calibration device 1 can be a single-axis milling machine or a multi-axis milling machine, and the tool holder 8 connected to the milling machine spindle 7 can be a contact probe blade or an image sensing blade, wherein the milling spindle control unit 71 It is used for controlling the movement of the milling machine spindle 7 and passing through the tool handle 8 connected to the milling machine spindle 7 to detect the jig 6 and calculating the offset of the detected position of the jig 6 , and the calculated offset is transmitted to The multi-axis rotation platform control unit 42 controls the multi-axis rotation platform control unit 42 to rotate according to the calculated offset amount.

Next, referring to FIG. 2 and FIG. 3, first, the jig 6 is first fixed to the relay base 5 by the third fixing member on the outside of the jig correction device 1, and then two in the jig correction device 1 The support units 3 are respectively fixed to the work table 2 by the first fixing elements 91, and then the jigs 6 fixed on the relay base plate 5 are disposed on the support unit 3, and are supported and fixed in the support unit 3 through the support unit 3 A multi-axis rotating platform 4 is placed next to the jig 6 on the bottom plate 5 and between the two supporting units 3 and below the relay floor 5. At this time, between the relay floor 5 and the multi-axis rotating platform 4 is not Since the second fixing member 92 penetrates the plurality of relay floor through holes 51 and the plurality of rotating platform holes 41, the multi-axis rotating platform 4 and the relay base plate 5 are fixed.

When it is necessary to correct the jig 6 in the jig correcting device 1, first, the milling machine spindle control unit 71 controls the movement of the milling machine spindle 7 and passes through the tool holder 8 connected to the milling machine spindle 7 to detect the jig 6, and is detected. The position is calculated by the milling machine spindle control unit 71 to calculate the offset of the jig 6, and the calculated offset is transmitted to the multi-axis rotary table control unit 42 via the communication connection. At this time, the multi-axis rotating platform control unit 42 rotates the multi-axis rotating platform 4 according to the calculated offset amount, and simultaneously drives the relay base plate 5, thereby adjusting the position of the jig 6. After the jig 6 reaches the moved position according to the calculated offset amount, the relay base plate 5 is fixed to the support unit 3 through the fixing jig (not shown in the drawing), and the second fixing member 92 is disassembled. Next, at this time, the multi-axis rotating platform 4 and the relay floor 5 are not fixed to each other, and the detached multi-axis rotating platform 4 does not affect the position of the corrected jig 6. In this embodiment, the communication connection mode includes an I/O (Input/Output) interface, a parallel communication interface, a serial communication interface, or an Ethernet communication interface.

4A, FIG. 5B, FIG. 6A and FIG. 6B, FIG. 4 is a schematic diagram of a fixture correction process according to another preferred embodiment of the present invention, and FIG. 5A and FIG. 5B are contact probes. The ideal and actual schematic diagram of the needle cutter and the actual and schematic diagrams of the image sensing knife detection fixture are shown in Figs. 6A and 6B.

First, in step S01, the detection of the offset of the jig 6 is performed. In this step, the milling machine spindle 7 is controlled to move through the milling spindle control unit 71, and the tool holder 8 connected to the milling machine spindle 7 is used to detect the jig 6, and the tool holder 8 includes a contact probe blade or an image sensing blade, so that The detection method includes two ways of detecting the fixture by the contact probe knife or the image sensing knife.

In a preferred embodiment, when the jig 6 is detected using a contact probe, as shown in FIG. 5A, the detection mode is as follows: the milling spindle control unit 71 knows that the fixture 6 is in the ideal position, A, B. Coordinates of points C, D, and D. Next, referring to FIG. 5B, when the contact probe blade is close to the side W of the jig 6, it contacts the point A1 of the side W of the jig 6, and the coordinates of the point A1 of the real point are (A _x , A _y ). Then, the contact probe blade advances along the side W direction toward the point B1, and the coordinates of the point B1 of the real point can be obtained as (B _x , B _y ), and the contact probe holder is repeatedly moved between the points A1 and B1. In order to obtain more accurate real two points of the A1 point and the B1 point. Then, the contact probe knife is brought close to the side L of the jig 6 to the point C1 of the side L of the jig 6, and then the coordinates of the point C1 of the real point are (C _x , C _y ), and then along the side. The L direction advances toward the point D1, and the coordinates of the point D1 of the real point are (D _x , D _y ). Similarly, the contact probe is repeatedly moved at the points C1 and D1 to obtain a more accurate real. Two coordinates of point C1 and point D1. Therefore, the coordinates of the points A, B, C, and D at the ideal position and the coordinates of the points of the real A1, B1, C1, and D1 after the detection are known, and the relationship of the offset of the jig 6 is obtained.

In another preferred embodiment, the jig 6 is detected using an image sensing blade, as shown in Figure 6A. When the milling machine spindle control unit 71 controls the movement of the milling machine spindle 7 and moves through the image sensing blade connected to the milling machine spindle 7 to the positive center point 61 of the jig 6 directly above the ideal position of the jig 6, the image sensing is transmitted through the image. The knife handle takes a picture and records the line segment of the contour line segments E, F, G and H of the ideal position of the jig 6; then, as shown in FIG. 6B, when the other fixture 6 is replaced, the image sensing knife is passed through the other The actual position of the jig 6 is taken, and according to the position of the positive center point 61 of the jig 6 directly above the original ideal position, the image sensing knife is again photographed, and the contour line segment E1 of the actual position of the other jig 6 is recorded. a line segment of F1, G1 and H1, thus obtaining a line segment of the contour line segments E, F, G and H of the ideal position of the jig 6 and a line segment of the contour line segments E1, F2, G1 and H1 of the actual position of the other jig 6 The relationship between the offset of the jig 6 is obtained.

Next, in step S02, the milling machine spindle control unit 71 calculates the offset of the jig 6 when the contact probe is used to detect the jig, and the coordinates of the points A1, B1, C1, and D1 after detecting the jig are obtained. The milling machine spindle control unit 71 passes the coordinates of A1, B1, C1 and D1 and calculates the offset according to the trigonometric function; where the coordinates of the A1 point are (A _x , A _y ) and the coordinates of the B1 point are (B _x , B _y ) calculate the offset, and find the 𝜃 which is represented by A1 to B1 from the X-axis direction. If the calculated 𝜃 is positive, it means that the fixture 6 is showing the inverse clock bias. 𝜃 degrees, the multi-axis rotating platform control unit 42 needs to control the multi-axis rotating platform 4 to perform clockwise bias 𝜃 degree correction, the trigonometric function formula is: For example, when the coordinates of point A1 are (2, 2), the coordinates of point B1 are (4, 4), and the angle of 𝜃 is 45 degrees, it means that the fixture 6 is 45 degrees opposite to the clock. The axis rotation platform control unit 42 needs to correct the multi-axis rotation platform by 45 degrees clockwise to correct the multi-axis rotation platform; and, if it is a coordinate with coordinates C1 (C _x , C _y ) and D1 points Calculate the offset for (D _x , D _y ) and find the 𝜃1 from C1 to D1 from the Y-axis direction. If the calculated 𝜃1 is positive, it means the fixture. 6 is to present the inverse clock bias 𝜃 1 degree, the multi-axis rotating platform control unit 42 needs to control the multi-axis rotating platform 4 to perform clockwise bias 𝜃 1 degree to correct the multi-axis rotating platform 4, The trigonometric formula is: For example, when the coordinates of point C1 are (-1, 1) and the coordinates of point D1 are (-2, 1+) ), the angle of the 𝜃1 is 30 degrees, so that the fixture 6 is biased by 30 degrees against the clock, the multi-axis rotating platform control unit 42 needs to bias the multi-axis rotating platform 4 by 30 degrees clockwise. The multi-axis rotary platform 4 is corrected.

In another preferred embodiment, when the image sensing blade is used to detect the jig 6, the line segment of the contour segments E, F, G and H of the ideal position of the jig 6 and the actual position of the other jig 6 are obtained. The line segments of the contour segments E1, F2, G1 and H1, and the contours of the milling machine spindle control unit 71 and the line segments of the contour segments E, F, G and H according to the actual position of the jig 6 and the actual position of the other jig 6 The line segments of line segments E1, F2, G1 and H1 calculate the offset of the fixture 6. The calculation of the offset is based on the fact that the two straight lines in the plane can be used to calculate the angle between the two inner lines, so two can be obtained. Angle offset 𝜃2 and 𝜃3, and average the two angular offsets to obtain a more accurate angular offset of the fixture 6𝜃=(𝜃2+𝜃3)/2; and the equation for each line segment of the line segment of the contour segment E, F, G, and H of the ideal position and the contour segment of the actual position E1, F2, G1, and H1, In the plane, two straight lines are known to find the intersection point. Therefore, the intersection point of the line E and F is P, and the intersection of the line segments E1 and F1 is P1, and the intersection of the two figures is compared. The positions of points P and P1 are calculated according to the formula: δ=P1-P, and the X-axis-Y-axis offset can be obtained.

Then, in steps S03 to S06, when the milling machine spindle control unit 71 controls the movement of the milling machine spindle 7 and passes through the tool holder 8 connected to the milling machine spindle 7 to detect the jig 6, the offset is obtained after being calculated by the milling spindle control unit 71. The calculated offset is transmitted to the multi-axis rotating platform control unit 42 through the communication connection mode, and the multi-axis rotating platform control unit 42 further rotates the multi-axis rotating platform 4 according to the offset and simultaneously drives the relay base plate 5 to adjust the jig. 6 location. After the jig 6 reaches the moved position according to the calculated offset amount, the relay base plate 5 and the support unit 3 are fixed by the fixing jig, and then the second fixing member 92 is detached, and the multi-axis rotating platform is at this time. 4 and the relay base plate 5 are not fixed to each other, and the disassembled multi-axis rotary platform 4 does not affect the position of the corrected fixture 6, and steps S01 to S06 are repeated for the uncorrected fixture 6 Until all fixtures 6 have been corrected.

The above is only the preferred embodiment of the patent, and the equivalent modification or variation according to the spirit of the patent, the structure and function of the fixture correction device according to the same concept should still be covered by this patent. Within the scope.

1‧‧‧ fixture correction device
2‧‧‧Workbench
3‧‧‧Support unit
4‧‧‧Multi-axis rotary platform
41‧‧‧Rotating platform holes
42‧‧‧Multi-axis rotary platform control unit
5‧‧‧Relay backplane
51‧‧‧Relay base plate through hole
6‧‧‧ fixture
61‧‧‧ center point
7‧‧‧ Milling machine spindle
71‧‧‧ Milling spindle control unit
8‧‧‧Knife handle
91‧‧‧First fixing element
92‧‧‧Second fixation element
S01~S06‧‧‧ Fixture calibration process

1A and 1B are schematic views of a conventional correction method. 2 is a schematic diagram showing a fixture correction device according to the technique disclosed in the present application. 3 is a schematic diagram showing a fixture correction system in accordance with the techniques disclosed in the present disclosure. 4 is a schematic diagram showing a jig correction process according to the technology disclosed in the present application. 5A-5B are schematic and practical diagrams showing the proximity of the contact probe tool holder according to the technique disclosed in the present invention. 6A-6B are schematic diagrams showing the ideal and actual view of the image sensing knife detecting fixture according to the technology disclosed in the present invention.

Claims (5)

A fixture correction device comprising: a work table, a plurality of support units are disposed on the work table and the support units are fixed on the work table by using a plurality of first fixing elements; The shaft rotating platform is disposed on the worktable, wherein the multi-axis rotating platform has a plurality of rotating platform holes and is connected to a multi-axis rotating platform control unit, wherein the multi-axis rotating platform control unit is configured to control the rotation of the multi-axis rotating platform; a relay bottom plate disposed on the multi-axis rotating platform and the supporting units, wherein the relay bottom plate has a plurality of relay bottom plate through holes, and a plurality of second fixing elements are used to penetrate through the middle Fixing the multi-axis rotating platform and the relay base plate along the bottom plate through hole and each of the rotating platform holes; a jig disposed on the relay base plate, and fixing the jig by using a plurality of third fixing elements On the relay floor; and a milling machine spindle, the milling machine spindle is coupled to a tool holder and a milling machine spindle control unit for controlling the movement of the milling machine spindle And through the knife connected to the milling spindle to detect the fixture. The jig correction device of claim 1, wherein the tool holder further comprises a contact probe blade or an image sensing blade. The fixture correction device of claim 1, wherein the multi-axis rotary platform control unit and the milling spindle control unit are capable of a communication connection. The fixture correction device of claim 3, wherein the communication connection method comprises an I/O interface, a parallel communication interface, a serial communication interface or an Ethernet communication interface. The jig correcting device of claim 1, wherein the milling machine spindle comprises a single-axis milling machine or a multi-axis milling machine.